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![Anshuman Gupta](/assets/img/avatar_default.png)
dispcnlunit1_cp_xosc_clkreq clock observed to be active on TGL-H platform
despite Wa_14010685332 original sequence,
thus blocks entry to deeper s0ix state.
The Tweaked Wa_14010685332 sequence fixes this issue, therefore use tweaked
Wa_14010685332 sequence for every PCH since PCH_CNP.
v2:
- removed RKL from comment and simplified condition. [Rodrigo]
Fixes: b896898c73
("drm/i915: Tweaked Wa_14010685332 for PCHs used on gen11 platforms")
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210810113112.31739-2-anshuman.gupta@intel.com
6391 lines
179 KiB
C
6391 lines
179 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#include "display/intel_crt.h"
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#include "i915_drv.h"
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#include "i915_irq.h"
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#include "intel_cdclk.h"
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#include "intel_combo_phy.h"
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#include "intel_display_power.h"
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#include "intel_de.h"
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#include "intel_display_types.h"
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#include "intel_dmc.h"
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#include "intel_dpio_phy.h"
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#include "intel_hotplug.h"
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#include "intel_pm.h"
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#include "intel_pps.h"
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#include "intel_sideband.h"
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#include "intel_snps_phy.h"
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#include "intel_tc.h"
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#include "intel_vga.h"
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bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
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enum i915_power_well_id power_well_id);
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const char *
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intel_display_power_domain_str(enum intel_display_power_domain domain)
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{
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switch (domain) {
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case POWER_DOMAIN_DISPLAY_CORE:
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return "DISPLAY_CORE";
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case POWER_DOMAIN_PIPE_A:
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return "PIPE_A";
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case POWER_DOMAIN_PIPE_B:
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return "PIPE_B";
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case POWER_DOMAIN_PIPE_C:
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return "PIPE_C";
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case POWER_DOMAIN_PIPE_D:
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return "PIPE_D";
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case POWER_DOMAIN_PIPE_A_PANEL_FITTER:
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return "PIPE_A_PANEL_FITTER";
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case POWER_DOMAIN_PIPE_B_PANEL_FITTER:
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return "PIPE_B_PANEL_FITTER";
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case POWER_DOMAIN_PIPE_C_PANEL_FITTER:
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return "PIPE_C_PANEL_FITTER";
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case POWER_DOMAIN_PIPE_D_PANEL_FITTER:
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return "PIPE_D_PANEL_FITTER";
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case POWER_DOMAIN_TRANSCODER_A:
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return "TRANSCODER_A";
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case POWER_DOMAIN_TRANSCODER_B:
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return "TRANSCODER_B";
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case POWER_DOMAIN_TRANSCODER_C:
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return "TRANSCODER_C";
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case POWER_DOMAIN_TRANSCODER_D:
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return "TRANSCODER_D";
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case POWER_DOMAIN_TRANSCODER_EDP:
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return "TRANSCODER_EDP";
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case POWER_DOMAIN_TRANSCODER_VDSC_PW2:
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return "TRANSCODER_VDSC_PW2";
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case POWER_DOMAIN_TRANSCODER_DSI_A:
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return "TRANSCODER_DSI_A";
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case POWER_DOMAIN_TRANSCODER_DSI_C:
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return "TRANSCODER_DSI_C";
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case POWER_DOMAIN_PORT_DDI_A_LANES:
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return "PORT_DDI_A_LANES";
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case POWER_DOMAIN_PORT_DDI_B_LANES:
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return "PORT_DDI_B_LANES";
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case POWER_DOMAIN_PORT_DDI_C_LANES:
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return "PORT_DDI_C_LANES";
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case POWER_DOMAIN_PORT_DDI_D_LANES:
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return "PORT_DDI_D_LANES";
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case POWER_DOMAIN_PORT_DDI_E_LANES:
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return "PORT_DDI_E_LANES";
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case POWER_DOMAIN_PORT_DDI_F_LANES:
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return "PORT_DDI_F_LANES";
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case POWER_DOMAIN_PORT_DDI_G_LANES:
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return "PORT_DDI_G_LANES";
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case POWER_DOMAIN_PORT_DDI_H_LANES:
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return "PORT_DDI_H_LANES";
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case POWER_DOMAIN_PORT_DDI_I_LANES:
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return "PORT_DDI_I_LANES";
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case POWER_DOMAIN_PORT_DDI_A_IO:
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return "PORT_DDI_A_IO";
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case POWER_DOMAIN_PORT_DDI_B_IO:
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return "PORT_DDI_B_IO";
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case POWER_DOMAIN_PORT_DDI_C_IO:
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return "PORT_DDI_C_IO";
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case POWER_DOMAIN_PORT_DDI_D_IO:
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return "PORT_DDI_D_IO";
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case POWER_DOMAIN_PORT_DDI_E_IO:
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return "PORT_DDI_E_IO";
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case POWER_DOMAIN_PORT_DDI_F_IO:
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return "PORT_DDI_F_IO";
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case POWER_DOMAIN_PORT_DDI_G_IO:
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return "PORT_DDI_G_IO";
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case POWER_DOMAIN_PORT_DDI_H_IO:
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return "PORT_DDI_H_IO";
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case POWER_DOMAIN_PORT_DDI_I_IO:
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return "PORT_DDI_I_IO";
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case POWER_DOMAIN_PORT_DSI:
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return "PORT_DSI";
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case POWER_DOMAIN_PORT_CRT:
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return "PORT_CRT";
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case POWER_DOMAIN_PORT_OTHER:
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return "PORT_OTHER";
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case POWER_DOMAIN_VGA:
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return "VGA";
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case POWER_DOMAIN_AUDIO_MMIO:
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return "AUDIO_MMIO";
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case POWER_DOMAIN_AUDIO_PLAYBACK:
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return "AUDIO_PLAYBACK";
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case POWER_DOMAIN_AUX_A:
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return "AUX_A";
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case POWER_DOMAIN_AUX_B:
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return "AUX_B";
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case POWER_DOMAIN_AUX_C:
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return "AUX_C";
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case POWER_DOMAIN_AUX_D:
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return "AUX_D";
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case POWER_DOMAIN_AUX_E:
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return "AUX_E";
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case POWER_DOMAIN_AUX_F:
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return "AUX_F";
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case POWER_DOMAIN_AUX_G:
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return "AUX_G";
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case POWER_DOMAIN_AUX_H:
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return "AUX_H";
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case POWER_DOMAIN_AUX_I:
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return "AUX_I";
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case POWER_DOMAIN_AUX_IO_A:
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return "AUX_IO_A";
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case POWER_DOMAIN_AUX_C_TBT:
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return "AUX_C_TBT";
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case POWER_DOMAIN_AUX_D_TBT:
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return "AUX_D_TBT";
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case POWER_DOMAIN_AUX_E_TBT:
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return "AUX_E_TBT";
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case POWER_DOMAIN_AUX_F_TBT:
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return "AUX_F_TBT";
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case POWER_DOMAIN_AUX_G_TBT:
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return "AUX_G_TBT";
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case POWER_DOMAIN_AUX_H_TBT:
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return "AUX_H_TBT";
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case POWER_DOMAIN_AUX_I_TBT:
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return "AUX_I_TBT";
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case POWER_DOMAIN_GMBUS:
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return "GMBUS";
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case POWER_DOMAIN_INIT:
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return "INIT";
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case POWER_DOMAIN_MODESET:
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return "MODESET";
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case POWER_DOMAIN_GT_IRQ:
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return "GT_IRQ";
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case POWER_DOMAIN_DPLL_DC_OFF:
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return "DPLL_DC_OFF";
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case POWER_DOMAIN_TC_COLD_OFF:
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return "TC_COLD_OFF";
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default:
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MISSING_CASE(domain);
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return "?";
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}
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}
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static void intel_power_well_enable(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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drm_dbg_kms(&dev_priv->drm, "enabling %s\n", power_well->desc->name);
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power_well->desc->ops->enable(dev_priv, power_well);
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power_well->hw_enabled = true;
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}
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static void intel_power_well_disable(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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drm_dbg_kms(&dev_priv->drm, "disabling %s\n", power_well->desc->name);
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power_well->hw_enabled = false;
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power_well->desc->ops->disable(dev_priv, power_well);
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}
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static void intel_power_well_get(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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if (!power_well->count++)
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intel_power_well_enable(dev_priv, power_well);
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}
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static void intel_power_well_put(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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drm_WARN(&dev_priv->drm, !power_well->count,
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"Use count on power well %s is already zero",
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power_well->desc->name);
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if (!--power_well->count)
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intel_power_well_disable(dev_priv, power_well);
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}
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/**
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* __intel_display_power_is_enabled - unlocked check for a power domain
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* @dev_priv: i915 device instance
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* @domain: power domain to check
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*
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* This is the unlocked version of intel_display_power_is_enabled() and should
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* only be used from error capture and recovery code where deadlocks are
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* possible.
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*
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* Returns:
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* True when the power domain is enabled, false otherwise.
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*/
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bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
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enum intel_display_power_domain domain)
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{
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struct i915_power_well *power_well;
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bool is_enabled;
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if (dev_priv->runtime_pm.suspended)
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return false;
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is_enabled = true;
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for_each_power_domain_well_reverse(dev_priv, power_well, BIT_ULL(domain)) {
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if (power_well->desc->always_on)
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continue;
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if (!power_well->hw_enabled) {
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is_enabled = false;
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break;
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}
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}
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return is_enabled;
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}
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/**
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* intel_display_power_is_enabled - check for a power domain
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* @dev_priv: i915 device instance
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* @domain: power domain to check
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*
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* This function can be used to check the hw power domain state. It is mostly
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* used in hardware state readout functions. Everywhere else code should rely
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* upon explicit power domain reference counting to ensure that the hardware
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* block is powered up before accessing it.
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*
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* Callers must hold the relevant modesetting locks to ensure that concurrent
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* threads can't disable the power well while the caller tries to read a few
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* registers.
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*
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* Returns:
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* True when the power domain is enabled, false otherwise.
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*/
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bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
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enum intel_display_power_domain domain)
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{
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struct i915_power_domains *power_domains;
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bool ret;
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power_domains = &dev_priv->power_domains;
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mutex_lock(&power_domains->lock);
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ret = __intel_display_power_is_enabled(dev_priv, domain);
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mutex_unlock(&power_domains->lock);
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return ret;
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}
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/*
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* Starting with Haswell, we have a "Power Down Well" that can be turned off
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* when not needed anymore. We have 4 registers that can request the power well
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* to be enabled, and it will only be disabled if none of the registers is
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* requesting it to be enabled.
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*/
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static void hsw_power_well_post_enable(struct drm_i915_private *dev_priv,
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u8 irq_pipe_mask, bool has_vga)
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{
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if (has_vga)
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intel_vga_reset_io_mem(dev_priv);
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if (irq_pipe_mask)
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gen8_irq_power_well_post_enable(dev_priv, irq_pipe_mask);
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}
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static void hsw_power_well_pre_disable(struct drm_i915_private *dev_priv,
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u8 irq_pipe_mask)
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{
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if (irq_pipe_mask)
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gen8_irq_power_well_pre_disable(dev_priv, irq_pipe_mask);
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}
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#define ICL_AUX_PW_TO_CH(pw_idx) \
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((pw_idx) - ICL_PW_CTL_IDX_AUX_A + AUX_CH_A)
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#define ICL_TBT_AUX_PW_TO_CH(pw_idx) \
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((pw_idx) - ICL_PW_CTL_IDX_AUX_TBT1 + AUX_CH_C)
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static enum aux_ch icl_aux_pw_to_ch(const struct i915_power_well *power_well)
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{
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int pw_idx = power_well->desc->hsw.idx;
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return power_well->desc->hsw.is_tc_tbt ? ICL_TBT_AUX_PW_TO_CH(pw_idx) :
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ICL_AUX_PW_TO_CH(pw_idx);
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}
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static struct intel_digital_port *
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aux_ch_to_digital_port(struct drm_i915_private *dev_priv,
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enum aux_ch aux_ch)
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{
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struct intel_digital_port *dig_port = NULL;
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struct intel_encoder *encoder;
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for_each_intel_encoder(&dev_priv->drm, encoder) {
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/* We'll check the MST primary port */
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if (encoder->type == INTEL_OUTPUT_DP_MST)
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continue;
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dig_port = enc_to_dig_port(encoder);
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if (!dig_port)
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continue;
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if (dig_port->aux_ch != aux_ch) {
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dig_port = NULL;
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continue;
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}
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break;
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}
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return dig_port;
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}
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static enum phy icl_aux_pw_to_phy(struct drm_i915_private *i915,
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const struct i915_power_well *power_well)
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{
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enum aux_ch aux_ch = icl_aux_pw_to_ch(power_well);
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struct intel_digital_port *dig_port = aux_ch_to_digital_port(i915, aux_ch);
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return intel_port_to_phy(i915, dig_port->base.port);
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}
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static void hsw_wait_for_power_well_enable(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well,
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bool timeout_expected)
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{
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const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
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int pw_idx = power_well->desc->hsw.idx;
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int enable_delay = power_well->desc->hsw.fixed_enable_delay;
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/*
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* For some power wells we're not supposed to watch the status bit for
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* an ack, but rather just wait a fixed amount of time and then
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* proceed. This is only used on DG2.
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*/
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if (IS_DG2(dev_priv) && enable_delay) {
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usleep_range(enable_delay, 2 * enable_delay);
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return;
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}
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/* Timeout for PW1:10 us, AUX:not specified, other PWs:20 us. */
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if (intel_de_wait_for_set(dev_priv, regs->driver,
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HSW_PWR_WELL_CTL_STATE(pw_idx), 1)) {
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drm_dbg_kms(&dev_priv->drm, "%s power well enable timeout\n",
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power_well->desc->name);
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drm_WARN_ON(&dev_priv->drm, !timeout_expected);
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}
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}
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static u32 hsw_power_well_requesters(struct drm_i915_private *dev_priv,
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const struct i915_power_well_regs *regs,
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int pw_idx)
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{
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u32 req_mask = HSW_PWR_WELL_CTL_REQ(pw_idx);
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u32 ret;
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ret = intel_de_read(dev_priv, regs->bios) & req_mask ? 1 : 0;
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ret |= intel_de_read(dev_priv, regs->driver) & req_mask ? 2 : 0;
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if (regs->kvmr.reg)
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ret |= intel_de_read(dev_priv, regs->kvmr) & req_mask ? 4 : 0;
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ret |= intel_de_read(dev_priv, regs->debug) & req_mask ? 8 : 0;
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return ret;
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}
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static void hsw_wait_for_power_well_disable(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
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int pw_idx = power_well->desc->hsw.idx;
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bool disabled;
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u32 reqs;
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/*
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* Bspec doesn't require waiting for PWs to get disabled, but still do
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* this for paranoia. The known cases where a PW will be forced on:
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* - a KVMR request on any power well via the KVMR request register
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* - a DMC request on PW1 and MISC_IO power wells via the BIOS and
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* DEBUG request registers
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* Skip the wait in case any of the request bits are set and print a
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* diagnostic message.
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*/
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wait_for((disabled = !(intel_de_read(dev_priv, regs->driver) &
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HSW_PWR_WELL_CTL_STATE(pw_idx))) ||
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(reqs = hsw_power_well_requesters(dev_priv, regs, pw_idx)), 1);
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if (disabled)
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return;
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drm_dbg_kms(&dev_priv->drm,
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"%s forced on (bios:%d driver:%d kvmr:%d debug:%d)\n",
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power_well->desc->name,
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!!(reqs & 1), !!(reqs & 2), !!(reqs & 4), !!(reqs & 8));
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}
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static void gen9_wait_for_power_well_fuses(struct drm_i915_private *dev_priv,
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enum skl_power_gate pg)
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{
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/* Timeout 5us for PG#0, for other PGs 1us */
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drm_WARN_ON(&dev_priv->drm,
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intel_de_wait_for_set(dev_priv, SKL_FUSE_STATUS,
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SKL_FUSE_PG_DIST_STATUS(pg), 1));
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}
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static void hsw_power_well_enable(struct drm_i915_private *dev_priv,
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struct i915_power_well *power_well)
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{
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const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
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int pw_idx = power_well->desc->hsw.idx;
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u32 val;
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if (power_well->desc->hsw.has_fuses) {
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enum skl_power_gate pg;
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pg = DISPLAY_VER(dev_priv) >= 11 ? ICL_PW_CTL_IDX_TO_PG(pw_idx) :
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SKL_PW_CTL_IDX_TO_PG(pw_idx);
|
|
/*
|
|
* For PW1 we have to wait both for the PW0/PG0 fuse state
|
|
* before enabling the power well and PW1/PG1's own fuse
|
|
* state after the enabling. For all other power wells with
|
|
* fuses we only have to wait for that PW/PG's fuse state
|
|
* after the enabling.
|
|
*/
|
|
if (pg == SKL_PG1)
|
|
gen9_wait_for_power_well_fuses(dev_priv, SKL_PG0);
|
|
}
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
intel_de_write(dev_priv, regs->driver,
|
|
val | HSW_PWR_WELL_CTL_REQ(pw_idx));
|
|
|
|
hsw_wait_for_power_well_enable(dev_priv, power_well, false);
|
|
|
|
if (power_well->desc->hsw.has_fuses) {
|
|
enum skl_power_gate pg;
|
|
|
|
pg = DISPLAY_VER(dev_priv) >= 11 ? ICL_PW_CTL_IDX_TO_PG(pw_idx) :
|
|
SKL_PW_CTL_IDX_TO_PG(pw_idx);
|
|
gen9_wait_for_power_well_fuses(dev_priv, pg);
|
|
}
|
|
|
|
hsw_power_well_post_enable(dev_priv,
|
|
power_well->desc->hsw.irq_pipe_mask,
|
|
power_well->desc->hsw.has_vga);
|
|
}
|
|
|
|
static void hsw_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
int pw_idx = power_well->desc->hsw.idx;
|
|
u32 val;
|
|
|
|
hsw_power_well_pre_disable(dev_priv,
|
|
power_well->desc->hsw.irq_pipe_mask);
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
intel_de_write(dev_priv, regs->driver,
|
|
val & ~HSW_PWR_WELL_CTL_REQ(pw_idx));
|
|
hsw_wait_for_power_well_disable(dev_priv, power_well);
|
|
}
|
|
|
|
static void
|
|
icl_combo_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
int pw_idx = power_well->desc->hsw.idx;
|
|
enum phy phy = icl_aux_pw_to_phy(dev_priv, power_well);
|
|
u32 val;
|
|
|
|
drm_WARN_ON(&dev_priv->drm, !IS_ICELAKE(dev_priv));
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
intel_de_write(dev_priv, regs->driver,
|
|
val | HSW_PWR_WELL_CTL_REQ(pw_idx));
|
|
|
|
if (DISPLAY_VER(dev_priv) < 12) {
|
|
val = intel_de_read(dev_priv, ICL_PORT_CL_DW12(phy));
|
|
intel_de_write(dev_priv, ICL_PORT_CL_DW12(phy),
|
|
val | ICL_LANE_ENABLE_AUX);
|
|
}
|
|
|
|
hsw_wait_for_power_well_enable(dev_priv, power_well, false);
|
|
|
|
/* Display WA #1178: icl */
|
|
if (pw_idx >= ICL_PW_CTL_IDX_AUX_A && pw_idx <= ICL_PW_CTL_IDX_AUX_B &&
|
|
!intel_bios_is_port_edp(dev_priv, (enum port)phy)) {
|
|
val = intel_de_read(dev_priv, ICL_AUX_ANAOVRD1(pw_idx));
|
|
val |= ICL_AUX_ANAOVRD1_ENABLE | ICL_AUX_ANAOVRD1_LDO_BYPASS;
|
|
intel_de_write(dev_priv, ICL_AUX_ANAOVRD1(pw_idx), val);
|
|
}
|
|
}
|
|
|
|
static void
|
|
icl_combo_phy_aux_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
int pw_idx = power_well->desc->hsw.idx;
|
|
enum phy phy = icl_aux_pw_to_phy(dev_priv, power_well);
|
|
u32 val;
|
|
|
|
drm_WARN_ON(&dev_priv->drm, !IS_ICELAKE(dev_priv));
|
|
|
|
val = intel_de_read(dev_priv, ICL_PORT_CL_DW12(phy));
|
|
intel_de_write(dev_priv, ICL_PORT_CL_DW12(phy),
|
|
val & ~ICL_LANE_ENABLE_AUX);
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
intel_de_write(dev_priv, regs->driver,
|
|
val & ~HSW_PWR_WELL_CTL_REQ(pw_idx));
|
|
|
|
hsw_wait_for_power_well_disable(dev_priv, power_well);
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
|
|
static u64 async_put_domains_mask(struct i915_power_domains *power_domains);
|
|
|
|
static int power_well_async_ref_count(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
int refs = hweight64(power_well->desc->domains &
|
|
async_put_domains_mask(&dev_priv->power_domains));
|
|
|
|
drm_WARN_ON(&dev_priv->drm, refs > power_well->count);
|
|
|
|
return refs;
|
|
}
|
|
|
|
static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well,
|
|
struct intel_digital_port *dig_port)
|
|
{
|
|
/* Bypass the check if all references are released asynchronously */
|
|
if (power_well_async_ref_count(dev_priv, power_well) ==
|
|
power_well->count)
|
|
return;
|
|
|
|
if (drm_WARN_ON(&dev_priv->drm, !dig_port))
|
|
return;
|
|
|
|
if (DISPLAY_VER(dev_priv) == 11 && dig_port->tc_legacy_port)
|
|
return;
|
|
|
|
drm_WARN_ON(&dev_priv->drm, !intel_tc_port_ref_held(dig_port));
|
|
}
|
|
|
|
#else
|
|
|
|
static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well,
|
|
struct intel_digital_port *dig_port)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
#define TGL_AUX_PW_TO_TC_PORT(pw_idx) ((pw_idx) - TGL_PW_CTL_IDX_AUX_TC1)
|
|
|
|
static void icl_tc_cold_exit(struct drm_i915_private *i915)
|
|
{
|
|
int ret, tries = 0;
|
|
|
|
while (1) {
|
|
ret = sandybridge_pcode_write_timeout(i915,
|
|
ICL_PCODE_EXIT_TCCOLD,
|
|
0, 250, 1);
|
|
if (ret != -EAGAIN || ++tries == 3)
|
|
break;
|
|
msleep(1);
|
|
}
|
|
|
|
/* Spec states that TC cold exit can take up to 1ms to complete */
|
|
if (!ret)
|
|
msleep(1);
|
|
|
|
/* TODO: turn failure into a error as soon i915 CI updates ICL IFWI */
|
|
drm_dbg_kms(&i915->drm, "TC cold block %s\n", ret ? "failed" :
|
|
"succeeded");
|
|
}
|
|
|
|
static void
|
|
icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum aux_ch aux_ch = icl_aux_pw_to_ch(power_well);
|
|
struct intel_digital_port *dig_port = aux_ch_to_digital_port(dev_priv, aux_ch);
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
bool is_tbt = power_well->desc->hsw.is_tc_tbt;
|
|
bool timeout_expected;
|
|
u32 val;
|
|
|
|
icl_tc_port_assert_ref_held(dev_priv, power_well, dig_port);
|
|
|
|
val = intel_de_read(dev_priv, DP_AUX_CH_CTL(aux_ch));
|
|
val &= ~DP_AUX_CH_CTL_TBT_IO;
|
|
if (is_tbt)
|
|
val |= DP_AUX_CH_CTL_TBT_IO;
|
|
intel_de_write(dev_priv, DP_AUX_CH_CTL(aux_ch), val);
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
intel_de_write(dev_priv, regs->driver,
|
|
val | HSW_PWR_WELL_CTL_REQ(power_well->desc->hsw.idx));
|
|
|
|
/*
|
|
* An AUX timeout is expected if the TBT DP tunnel is down,
|
|
* or need to enable AUX on a legacy TypeC port as part of the TC-cold
|
|
* exit sequence.
|
|
*/
|
|
timeout_expected = is_tbt || intel_tc_cold_requires_aux_pw(dig_port);
|
|
if (DISPLAY_VER(dev_priv) == 11 && dig_port->tc_legacy_port)
|
|
icl_tc_cold_exit(dev_priv);
|
|
|
|
hsw_wait_for_power_well_enable(dev_priv, power_well, timeout_expected);
|
|
|
|
if (DISPLAY_VER(dev_priv) >= 12 && !is_tbt) {
|
|
enum tc_port tc_port;
|
|
|
|
tc_port = TGL_AUX_PW_TO_TC_PORT(power_well->desc->hsw.idx);
|
|
intel_de_write(dev_priv, HIP_INDEX_REG(tc_port),
|
|
HIP_INDEX_VAL(tc_port, 0x2));
|
|
|
|
if (intel_de_wait_for_set(dev_priv, DKL_CMN_UC_DW_27(tc_port),
|
|
DKL_CMN_UC_DW27_UC_HEALTH, 1))
|
|
drm_warn(&dev_priv->drm,
|
|
"Timeout waiting TC uC health\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
icl_tc_phy_aux_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum aux_ch aux_ch = icl_aux_pw_to_ch(power_well);
|
|
struct intel_digital_port *dig_port = aux_ch_to_digital_port(dev_priv, aux_ch);
|
|
|
|
icl_tc_port_assert_ref_held(dev_priv, power_well, dig_port);
|
|
|
|
hsw_power_well_disable(dev_priv, power_well);
|
|
}
|
|
|
|
static void
|
|
icl_aux_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum phy phy = icl_aux_pw_to_phy(dev_priv, power_well);
|
|
|
|
if (intel_phy_is_tc(dev_priv, phy))
|
|
return icl_tc_phy_aux_power_well_enable(dev_priv, power_well);
|
|
else if (IS_ICELAKE(dev_priv))
|
|
return icl_combo_phy_aux_power_well_enable(dev_priv,
|
|
power_well);
|
|
else
|
|
return hsw_power_well_enable(dev_priv, power_well);
|
|
}
|
|
|
|
static void
|
|
icl_aux_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum phy phy = icl_aux_pw_to_phy(dev_priv, power_well);
|
|
|
|
if (intel_phy_is_tc(dev_priv, phy))
|
|
return icl_tc_phy_aux_power_well_disable(dev_priv, power_well);
|
|
else if (IS_ICELAKE(dev_priv))
|
|
return icl_combo_phy_aux_power_well_disable(dev_priv,
|
|
power_well);
|
|
else
|
|
return hsw_power_well_disable(dev_priv, power_well);
|
|
}
|
|
|
|
/*
|
|
* We should only use the power well if we explicitly asked the hardware to
|
|
* enable it, so check if it's enabled and also check if we've requested it to
|
|
* be enabled.
|
|
*/
|
|
static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
enum i915_power_well_id id = power_well->desc->id;
|
|
int pw_idx = power_well->desc->hsw.idx;
|
|
u32 mask = HSW_PWR_WELL_CTL_REQ(pw_idx) |
|
|
HSW_PWR_WELL_CTL_STATE(pw_idx);
|
|
u32 val;
|
|
|
|
val = intel_de_read(dev_priv, regs->driver);
|
|
|
|
/*
|
|
* On GEN9 big core due to a DMC bug the driver's request bits for PW1
|
|
* and the MISC_IO PW will be not restored, so check instead for the
|
|
* BIOS's own request bits, which are forced-on for these power wells
|
|
* when exiting DC5/6.
|
|
*/
|
|
if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv) &&
|
|
(id == SKL_DISP_PW_1 || id == SKL_DISP_PW_MISC_IO))
|
|
val |= intel_de_read(dev_priv, regs->bios);
|
|
|
|
return (val & mask) == mask;
|
|
}
|
|
|
|
static void assert_can_enable_dc9(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
(intel_de_read(dev_priv, DC_STATE_EN) & DC_STATE_EN_DC9),
|
|
"DC9 already programmed to be enabled.\n");
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
intel_de_read(dev_priv, DC_STATE_EN) &
|
|
DC_STATE_EN_UPTO_DC5,
|
|
"DC5 still not disabled to enable DC9.\n");
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
intel_de_read(dev_priv, HSW_PWR_WELL_CTL2) &
|
|
HSW_PWR_WELL_CTL_REQ(SKL_PW_CTL_IDX_PW_2),
|
|
"Power well 2 on.\n");
|
|
drm_WARN_ONCE(&dev_priv->drm, intel_irqs_enabled(dev_priv),
|
|
"Interrupts not disabled yet.\n");
|
|
|
|
/*
|
|
* TODO: check for the following to verify the conditions to enter DC9
|
|
* state are satisfied:
|
|
* 1] Check relevant display engine registers to verify if mode set
|
|
* disable sequence was followed.
|
|
* 2] Check if display uninitialize sequence is initialized.
|
|
*/
|
|
}
|
|
|
|
static void assert_can_disable_dc9(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_WARN_ONCE(&dev_priv->drm, intel_irqs_enabled(dev_priv),
|
|
"Interrupts not disabled yet.\n");
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
intel_de_read(dev_priv, DC_STATE_EN) &
|
|
DC_STATE_EN_UPTO_DC5,
|
|
"DC5 still not disabled.\n");
|
|
|
|
/*
|
|
* TODO: check for the following to verify DC9 state was indeed
|
|
* entered before programming to disable it:
|
|
* 1] Check relevant display engine registers to verify if mode
|
|
* set disable sequence was followed.
|
|
* 2] Check if display uninitialize sequence is initialized.
|
|
*/
|
|
}
|
|
|
|
static void gen9_write_dc_state(struct drm_i915_private *dev_priv,
|
|
u32 state)
|
|
{
|
|
int rewrites = 0;
|
|
int rereads = 0;
|
|
u32 v;
|
|
|
|
intel_de_write(dev_priv, DC_STATE_EN, state);
|
|
|
|
/* It has been observed that disabling the dc6 state sometimes
|
|
* doesn't stick and dmc keeps returning old value. Make sure
|
|
* the write really sticks enough times and also force rewrite until
|
|
* we are confident that state is exactly what we want.
|
|
*/
|
|
do {
|
|
v = intel_de_read(dev_priv, DC_STATE_EN);
|
|
|
|
if (v != state) {
|
|
intel_de_write(dev_priv, DC_STATE_EN, state);
|
|
rewrites++;
|
|
rereads = 0;
|
|
} else if (rereads++ > 5) {
|
|
break;
|
|
}
|
|
|
|
} while (rewrites < 100);
|
|
|
|
if (v != state)
|
|
drm_err(&dev_priv->drm,
|
|
"Writing dc state to 0x%x failed, now 0x%x\n",
|
|
state, v);
|
|
|
|
/* Most of the times we need one retry, avoid spam */
|
|
if (rewrites > 1)
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Rewrote dc state to 0x%x %d times\n",
|
|
state, rewrites);
|
|
}
|
|
|
|
static u32 gen9_dc_mask(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 mask;
|
|
|
|
mask = DC_STATE_EN_UPTO_DC5;
|
|
|
|
if (DISPLAY_VER(dev_priv) >= 12)
|
|
mask |= DC_STATE_EN_DC3CO | DC_STATE_EN_UPTO_DC6
|
|
| DC_STATE_EN_DC9;
|
|
else if (DISPLAY_VER(dev_priv) == 11)
|
|
mask |= DC_STATE_EN_UPTO_DC6 | DC_STATE_EN_DC9;
|
|
else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
|
|
mask |= DC_STATE_EN_DC9;
|
|
else
|
|
mask |= DC_STATE_EN_UPTO_DC6;
|
|
|
|
return mask;
|
|
}
|
|
|
|
static void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
val = intel_de_read(dev_priv, DC_STATE_EN) & gen9_dc_mask(dev_priv);
|
|
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Resetting DC state tracking from %02x to %02x\n",
|
|
dev_priv->dmc.dc_state, val);
|
|
dev_priv->dmc.dc_state = val;
|
|
}
|
|
|
|
/**
|
|
* gen9_set_dc_state - set target display C power state
|
|
* @dev_priv: i915 device instance
|
|
* @state: target DC power state
|
|
* - DC_STATE_DISABLE
|
|
* - DC_STATE_EN_UPTO_DC5
|
|
* - DC_STATE_EN_UPTO_DC6
|
|
* - DC_STATE_EN_DC9
|
|
*
|
|
* Signal to DMC firmware/HW the target DC power state passed in @state.
|
|
* DMC/HW can turn off individual display clocks and power rails when entering
|
|
* a deeper DC power state (higher in number) and turns these back when exiting
|
|
* that state to a shallower power state (lower in number). The HW will decide
|
|
* when to actually enter a given state on an on-demand basis, for instance
|
|
* depending on the active state of display pipes. The state of display
|
|
* registers backed by affected power rails are saved/restored as needed.
|
|
*
|
|
* Based on the above enabling a deeper DC power state is asynchronous wrt.
|
|
* enabling it. Disabling a deeper power state is synchronous: for instance
|
|
* setting %DC_STATE_DISABLE won't complete until all HW resources are turned
|
|
* back on and register state is restored. This is guaranteed by the MMIO write
|
|
* to DC_STATE_EN blocking until the state is restored.
|
|
*/
|
|
static void gen9_set_dc_state(struct drm_i915_private *dev_priv, u32 state)
|
|
{
|
|
u32 val;
|
|
u32 mask;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
if (drm_WARN_ON_ONCE(&dev_priv->drm,
|
|
state & ~dev_priv->dmc.allowed_dc_mask))
|
|
state &= dev_priv->dmc.allowed_dc_mask;
|
|
|
|
val = intel_de_read(dev_priv, DC_STATE_EN);
|
|
mask = gen9_dc_mask(dev_priv);
|
|
drm_dbg_kms(&dev_priv->drm, "Setting DC state from %02x to %02x\n",
|
|
val & mask, state);
|
|
|
|
/* Check if DMC is ignoring our DC state requests */
|
|
if ((val & mask) != dev_priv->dmc.dc_state)
|
|
drm_err(&dev_priv->drm, "DC state mismatch (0x%x -> 0x%x)\n",
|
|
dev_priv->dmc.dc_state, val & mask);
|
|
|
|
val &= ~mask;
|
|
val |= state;
|
|
|
|
gen9_write_dc_state(dev_priv, val);
|
|
|
|
dev_priv->dmc.dc_state = val & mask;
|
|
}
|
|
|
|
static u32
|
|
sanitize_target_dc_state(struct drm_i915_private *dev_priv,
|
|
u32 target_dc_state)
|
|
{
|
|
u32 states[] = {
|
|
DC_STATE_EN_UPTO_DC6,
|
|
DC_STATE_EN_UPTO_DC5,
|
|
DC_STATE_EN_DC3CO,
|
|
DC_STATE_DISABLE,
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(states) - 1; i++) {
|
|
if (target_dc_state != states[i])
|
|
continue;
|
|
|
|
if (dev_priv->dmc.allowed_dc_mask & target_dc_state)
|
|
break;
|
|
|
|
target_dc_state = states[i + 1];
|
|
}
|
|
|
|
return target_dc_state;
|
|
}
|
|
|
|
static void tgl_enable_dc3co(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_dbg_kms(&dev_priv->drm, "Enabling DC3CO\n");
|
|
gen9_set_dc_state(dev_priv, DC_STATE_EN_DC3CO);
|
|
}
|
|
|
|
static void tgl_disable_dc3co(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Disabling DC3CO\n");
|
|
val = intel_de_read(dev_priv, DC_STATE_EN);
|
|
val &= ~DC_STATE_DC3CO_STATUS;
|
|
intel_de_write(dev_priv, DC_STATE_EN, val);
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
/*
|
|
* Delay of 200us DC3CO Exit time B.Spec 49196
|
|
*/
|
|
usleep_range(200, 210);
|
|
}
|
|
|
|
static void bxt_enable_dc9(struct drm_i915_private *dev_priv)
|
|
{
|
|
assert_can_enable_dc9(dev_priv);
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Enabling DC9\n");
|
|
/*
|
|
* Power sequencer reset is not needed on
|
|
* platforms with South Display Engine on PCH,
|
|
* because PPS registers are always on.
|
|
*/
|
|
if (!HAS_PCH_SPLIT(dev_priv))
|
|
intel_pps_reset_all(dev_priv);
|
|
gen9_set_dc_state(dev_priv, DC_STATE_EN_DC9);
|
|
}
|
|
|
|
static void bxt_disable_dc9(struct drm_i915_private *dev_priv)
|
|
{
|
|
assert_can_disable_dc9(dev_priv);
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Disabling DC9\n");
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
|
|
intel_pps_unlock_regs_wa(dev_priv);
|
|
}
|
|
|
|
static void assert_dmc_loaded(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
!intel_de_read(dev_priv,
|
|
DMC_PROGRAM(dev_priv->dmc.dmc_info[DMC_FW_MAIN].start_mmioaddr, 0)),
|
|
"DMC program storage start is NULL\n");
|
|
drm_WARN_ONCE(&dev_priv->drm, !intel_de_read(dev_priv, DMC_SSP_BASE),
|
|
"DMC SSP Base Not fine\n");
|
|
drm_WARN_ONCE(&dev_priv->drm, !intel_de_read(dev_priv, DMC_HTP_SKL),
|
|
"DMC HTP Not fine\n");
|
|
}
|
|
|
|
static struct i915_power_well *
|
|
lookup_power_well(struct drm_i915_private *dev_priv,
|
|
enum i915_power_well_id power_well_id)
|
|
{
|
|
struct i915_power_well *power_well;
|
|
|
|
for_each_power_well(dev_priv, power_well)
|
|
if (power_well->desc->id == power_well_id)
|
|
return power_well;
|
|
|
|
/*
|
|
* It's not feasible to add error checking code to the callers since
|
|
* this condition really shouldn't happen and it doesn't even make sense
|
|
* to abort things like display initialization sequences. Just return
|
|
* the first power well and hope the WARN gets reported so we can fix
|
|
* our driver.
|
|
*/
|
|
drm_WARN(&dev_priv->drm, 1,
|
|
"Power well %d not defined for this platform\n",
|
|
power_well_id);
|
|
return &dev_priv->power_domains.power_wells[0];
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_set_target_dc_state - Set target dc state.
|
|
* @dev_priv: i915 device
|
|
* @state: state which needs to be set as target_dc_state.
|
|
*
|
|
* This function set the "DC off" power well target_dc_state,
|
|
* based upon this target_dc_stste, "DC off" power well will
|
|
* enable desired DC state.
|
|
*/
|
|
void intel_display_power_set_target_dc_state(struct drm_i915_private *dev_priv,
|
|
u32 state)
|
|
{
|
|
struct i915_power_well *power_well;
|
|
bool dc_off_enabled;
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
power_well = lookup_power_well(dev_priv, SKL_DISP_DC_OFF);
|
|
|
|
if (drm_WARN_ON(&dev_priv->drm, !power_well))
|
|
goto unlock;
|
|
|
|
state = sanitize_target_dc_state(dev_priv, state);
|
|
|
|
if (state == dev_priv->dmc.target_dc_state)
|
|
goto unlock;
|
|
|
|
dc_off_enabled = power_well->desc->ops->is_enabled(dev_priv,
|
|
power_well);
|
|
/*
|
|
* If DC off power well is disabled, need to enable and disable the
|
|
* DC off power well to effect target DC state.
|
|
*/
|
|
if (!dc_off_enabled)
|
|
power_well->desc->ops->enable(dev_priv, power_well);
|
|
|
|
dev_priv->dmc.target_dc_state = state;
|
|
|
|
if (!dc_off_enabled)
|
|
power_well->desc->ops->disable(dev_priv, power_well);
|
|
|
|
unlock:
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
static void assert_can_enable_dc5(struct drm_i915_private *dev_priv)
|
|
{
|
|
enum i915_power_well_id high_pg;
|
|
|
|
/* Power wells at this level and above must be disabled for DC5 entry */
|
|
if (DISPLAY_VER(dev_priv) == 12)
|
|
high_pg = ICL_DISP_PW_3;
|
|
else
|
|
high_pg = SKL_DISP_PW_2;
|
|
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
intel_display_power_well_is_enabled(dev_priv, high_pg),
|
|
"Power wells above platform's DC5 limit still enabled.\n");
|
|
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
(intel_de_read(dev_priv, DC_STATE_EN) &
|
|
DC_STATE_EN_UPTO_DC5),
|
|
"DC5 already programmed to be enabled.\n");
|
|
assert_rpm_wakelock_held(&dev_priv->runtime_pm);
|
|
|
|
assert_dmc_loaded(dev_priv);
|
|
}
|
|
|
|
static void gen9_enable_dc5(struct drm_i915_private *dev_priv)
|
|
{
|
|
assert_can_enable_dc5(dev_priv);
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Enabling DC5\n");
|
|
|
|
/* Wa Display #1183: skl,kbl,cfl */
|
|
if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv))
|
|
intel_de_write(dev_priv, GEN8_CHICKEN_DCPR_1,
|
|
intel_de_read(dev_priv, GEN8_CHICKEN_DCPR_1) | SKL_SELECT_ALTERNATE_DC_EXIT);
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC5);
|
|
}
|
|
|
|
static void assert_can_enable_dc6(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
intel_de_read(dev_priv, UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
|
|
"Backlight is not disabled.\n");
|
|
drm_WARN_ONCE(&dev_priv->drm,
|
|
(intel_de_read(dev_priv, DC_STATE_EN) &
|
|
DC_STATE_EN_UPTO_DC6),
|
|
"DC6 already programmed to be enabled.\n");
|
|
|
|
assert_dmc_loaded(dev_priv);
|
|
}
|
|
|
|
static void skl_enable_dc6(struct drm_i915_private *dev_priv)
|
|
{
|
|
assert_can_enable_dc6(dev_priv);
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Enabling DC6\n");
|
|
|
|
/* Wa Display #1183: skl,kbl,cfl */
|
|
if (DISPLAY_VER(dev_priv) == 9 && !IS_BROXTON(dev_priv))
|
|
intel_de_write(dev_priv, GEN8_CHICKEN_DCPR_1,
|
|
intel_de_read(dev_priv, GEN8_CHICKEN_DCPR_1) | SKL_SELECT_ALTERNATE_DC_EXIT);
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
|
|
}
|
|
|
|
static void hsw_power_well_sync_hw(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
const struct i915_power_well_regs *regs = power_well->desc->hsw.regs;
|
|
int pw_idx = power_well->desc->hsw.idx;
|
|
u32 mask = HSW_PWR_WELL_CTL_REQ(pw_idx);
|
|
u32 bios_req = intel_de_read(dev_priv, regs->bios);
|
|
|
|
/* Take over the request bit if set by BIOS. */
|
|
if (bios_req & mask) {
|
|
u32 drv_req = intel_de_read(dev_priv, regs->driver);
|
|
|
|
if (!(drv_req & mask))
|
|
intel_de_write(dev_priv, regs->driver, drv_req | mask);
|
|
intel_de_write(dev_priv, regs->bios, bios_req & ~mask);
|
|
}
|
|
}
|
|
|
|
static void bxt_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
bxt_ddi_phy_init(dev_priv, power_well->desc->bxt.phy);
|
|
}
|
|
|
|
static void bxt_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
bxt_ddi_phy_uninit(dev_priv, power_well->desc->bxt.phy);
|
|
}
|
|
|
|
static bool bxt_dpio_cmn_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
return bxt_ddi_phy_is_enabled(dev_priv, power_well->desc->bxt.phy);
|
|
}
|
|
|
|
static void bxt_verify_ddi_phy_power_wells(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_well *power_well;
|
|
|
|
power_well = lookup_power_well(dev_priv, BXT_DISP_PW_DPIO_CMN_A);
|
|
if (power_well->count > 0)
|
|
bxt_ddi_phy_verify_state(dev_priv, power_well->desc->bxt.phy);
|
|
|
|
power_well = lookup_power_well(dev_priv, VLV_DISP_PW_DPIO_CMN_BC);
|
|
if (power_well->count > 0)
|
|
bxt_ddi_phy_verify_state(dev_priv, power_well->desc->bxt.phy);
|
|
|
|
if (IS_GEMINILAKE(dev_priv)) {
|
|
power_well = lookup_power_well(dev_priv,
|
|
GLK_DISP_PW_DPIO_CMN_C);
|
|
if (power_well->count > 0)
|
|
bxt_ddi_phy_verify_state(dev_priv,
|
|
power_well->desc->bxt.phy);
|
|
}
|
|
}
|
|
|
|
static bool gen9_dc_off_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
return ((intel_de_read(dev_priv, DC_STATE_EN) & DC_STATE_EN_DC3CO) == 0 &&
|
|
(intel_de_read(dev_priv, DC_STATE_EN) & DC_STATE_EN_UPTO_DC5_DC6_MASK) == 0);
|
|
}
|
|
|
|
static void gen9_assert_dbuf_enabled(struct drm_i915_private *dev_priv)
|
|
{
|
|
u8 hw_enabled_dbuf_slices = intel_enabled_dbuf_slices_mask(dev_priv);
|
|
u8 enabled_dbuf_slices = dev_priv->dbuf.enabled_slices;
|
|
|
|
drm_WARN(&dev_priv->drm,
|
|
hw_enabled_dbuf_slices != enabled_dbuf_slices,
|
|
"Unexpected DBuf power power state (0x%08x, expected 0x%08x)\n",
|
|
hw_enabled_dbuf_slices,
|
|
enabled_dbuf_slices);
|
|
}
|
|
|
|
static void gen9_disable_dc_states(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct intel_cdclk_config cdclk_config = {};
|
|
|
|
if (dev_priv->dmc.target_dc_state == DC_STATE_EN_DC3CO) {
|
|
tgl_disable_dc3co(dev_priv);
|
|
return;
|
|
}
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
dev_priv->display.get_cdclk(dev_priv, &cdclk_config);
|
|
/* Can't read out voltage_level so can't use intel_cdclk_changed() */
|
|
drm_WARN_ON(&dev_priv->drm,
|
|
intel_cdclk_needs_modeset(&dev_priv->cdclk.hw,
|
|
&cdclk_config));
|
|
|
|
gen9_assert_dbuf_enabled(dev_priv);
|
|
|
|
if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
|
|
bxt_verify_ddi_phy_power_wells(dev_priv);
|
|
|
|
if (DISPLAY_VER(dev_priv) >= 11)
|
|
/*
|
|
* DMC retains HW context only for port A, the other combo
|
|
* PHY's HW context for port B is lost after DC transitions,
|
|
* so we need to restore it manually.
|
|
*/
|
|
intel_combo_phy_init(dev_priv);
|
|
}
|
|
|
|
static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
gen9_disable_dc_states(dev_priv);
|
|
}
|
|
|
|
static void gen9_dc_off_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
if (!intel_dmc_has_payload(dev_priv))
|
|
return;
|
|
|
|
switch (dev_priv->dmc.target_dc_state) {
|
|
case DC_STATE_EN_DC3CO:
|
|
tgl_enable_dc3co(dev_priv);
|
|
break;
|
|
case DC_STATE_EN_UPTO_DC6:
|
|
skl_enable_dc6(dev_priv);
|
|
break;
|
|
case DC_STATE_EN_UPTO_DC5:
|
|
gen9_enable_dc5(dev_priv);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void i9xx_power_well_sync_hw_noop(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
}
|
|
|
|
static void i9xx_always_on_power_well_noop(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
}
|
|
|
|
static bool i9xx_always_on_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static void i830_pipes_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
if ((intel_de_read(dev_priv, PIPECONF(PIPE_A)) & PIPECONF_ENABLE) == 0)
|
|
i830_enable_pipe(dev_priv, PIPE_A);
|
|
if ((intel_de_read(dev_priv, PIPECONF(PIPE_B)) & PIPECONF_ENABLE) == 0)
|
|
i830_enable_pipe(dev_priv, PIPE_B);
|
|
}
|
|
|
|
static void i830_pipes_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
i830_disable_pipe(dev_priv, PIPE_B);
|
|
i830_disable_pipe(dev_priv, PIPE_A);
|
|
}
|
|
|
|
static bool i830_pipes_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
return intel_de_read(dev_priv, PIPECONF(PIPE_A)) & PIPECONF_ENABLE &&
|
|
intel_de_read(dev_priv, PIPECONF(PIPE_B)) & PIPECONF_ENABLE;
|
|
}
|
|
|
|
static void i830_pipes_power_well_sync_hw(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
if (power_well->count > 0)
|
|
i830_pipes_power_well_enable(dev_priv, power_well);
|
|
else
|
|
i830_pipes_power_well_disable(dev_priv, power_well);
|
|
}
|
|
|
|
static void vlv_set_power_well(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well, bool enable)
|
|
{
|
|
int pw_idx = power_well->desc->vlv.idx;
|
|
u32 mask;
|
|
u32 state;
|
|
u32 ctrl;
|
|
|
|
mask = PUNIT_PWRGT_MASK(pw_idx);
|
|
state = enable ? PUNIT_PWRGT_PWR_ON(pw_idx) :
|
|
PUNIT_PWRGT_PWR_GATE(pw_idx);
|
|
|
|
vlv_punit_get(dev_priv);
|
|
|
|
#define COND \
|
|
((vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_STATUS) & mask) == state)
|
|
|
|
if (COND)
|
|
goto out;
|
|
|
|
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_CTRL);
|
|
ctrl &= ~mask;
|
|
ctrl |= state;
|
|
vlv_punit_write(dev_priv, PUNIT_REG_PWRGT_CTRL, ctrl);
|
|
|
|
if (wait_for(COND, 100))
|
|
drm_err(&dev_priv->drm,
|
|
"timeout setting power well state %08x (%08x)\n",
|
|
state,
|
|
vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_CTRL));
|
|
|
|
#undef COND
|
|
|
|
out:
|
|
vlv_punit_put(dev_priv);
|
|
}
|
|
|
|
static void vlv_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
vlv_set_power_well(dev_priv, power_well, true);
|
|
}
|
|
|
|
static void vlv_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
vlv_set_power_well(dev_priv, power_well, false);
|
|
}
|
|
|
|
static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
int pw_idx = power_well->desc->vlv.idx;
|
|
bool enabled = false;
|
|
u32 mask;
|
|
u32 state;
|
|
u32 ctrl;
|
|
|
|
mask = PUNIT_PWRGT_MASK(pw_idx);
|
|
ctrl = PUNIT_PWRGT_PWR_ON(pw_idx);
|
|
|
|
vlv_punit_get(dev_priv);
|
|
|
|
state = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_STATUS) & mask;
|
|
/*
|
|
* We only ever set the power-on and power-gate states, anything
|
|
* else is unexpected.
|
|
*/
|
|
drm_WARN_ON(&dev_priv->drm, state != PUNIT_PWRGT_PWR_ON(pw_idx) &&
|
|
state != PUNIT_PWRGT_PWR_GATE(pw_idx));
|
|
if (state == ctrl)
|
|
enabled = true;
|
|
|
|
/*
|
|
* A transient state at this point would mean some unexpected party
|
|
* is poking at the power controls too.
|
|
*/
|
|
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_PWRGT_CTRL) & mask;
|
|
drm_WARN_ON(&dev_priv->drm, ctrl != state);
|
|
|
|
vlv_punit_put(dev_priv);
|
|
|
|
return enabled;
|
|
}
|
|
|
|
static void vlv_init_display_clock_gating(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
/*
|
|
* On driver load, a pipe may be active and driving a DSI display.
|
|
* Preserve DPOUNIT_CLOCK_GATE_DISABLE to avoid the pipe getting stuck
|
|
* (and never recovering) in this case. intel_dsi_post_disable() will
|
|
* clear it when we turn off the display.
|
|
*/
|
|
val = intel_de_read(dev_priv, DSPCLK_GATE_D);
|
|
val &= DPOUNIT_CLOCK_GATE_DISABLE;
|
|
val |= VRHUNIT_CLOCK_GATE_DISABLE;
|
|
intel_de_write(dev_priv, DSPCLK_GATE_D, val);
|
|
|
|
/*
|
|
* Disable trickle feed and enable pnd deadline calculation
|
|
*/
|
|
intel_de_write(dev_priv, MI_ARB_VLV,
|
|
MI_ARB_DISPLAY_TRICKLE_FEED_DISABLE);
|
|
intel_de_write(dev_priv, CBR1_VLV, 0);
|
|
|
|
drm_WARN_ON(&dev_priv->drm, RUNTIME_INFO(dev_priv)->rawclk_freq == 0);
|
|
intel_de_write(dev_priv, RAWCLK_FREQ_VLV,
|
|
DIV_ROUND_CLOSEST(RUNTIME_INFO(dev_priv)->rawclk_freq,
|
|
1000));
|
|
}
|
|
|
|
static void vlv_display_power_well_init(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct intel_encoder *encoder;
|
|
enum pipe pipe;
|
|
|
|
/*
|
|
* Enable the CRI clock source so we can get at the
|
|
* display and the reference clock for VGA
|
|
* hotplug / manual detection. Supposedly DSI also
|
|
* needs the ref clock up and running.
|
|
*
|
|
* CHV DPLL B/C have some issues if VGA mode is enabled.
|
|
*/
|
|
for_each_pipe(dev_priv, pipe) {
|
|
u32 val = intel_de_read(dev_priv, DPLL(pipe));
|
|
|
|
val |= DPLL_REF_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS;
|
|
if (pipe != PIPE_A)
|
|
val |= DPLL_INTEGRATED_CRI_CLK_VLV;
|
|
|
|
intel_de_write(dev_priv, DPLL(pipe), val);
|
|
}
|
|
|
|
vlv_init_display_clock_gating(dev_priv);
|
|
|
|
spin_lock_irq(&dev_priv->irq_lock);
|
|
valleyview_enable_display_irqs(dev_priv);
|
|
spin_unlock_irq(&dev_priv->irq_lock);
|
|
|
|
/*
|
|
* During driver initialization/resume we can avoid restoring the
|
|
* part of the HW/SW state that will be inited anyway explicitly.
|
|
*/
|
|
if (dev_priv->power_domains.initializing)
|
|
return;
|
|
|
|
intel_hpd_init(dev_priv);
|
|
intel_hpd_poll_disable(dev_priv);
|
|
|
|
/* Re-enable the ADPA, if we have one */
|
|
for_each_intel_encoder(&dev_priv->drm, encoder) {
|
|
if (encoder->type == INTEL_OUTPUT_ANALOG)
|
|
intel_crt_reset(&encoder->base);
|
|
}
|
|
|
|
intel_vga_redisable_power_on(dev_priv);
|
|
|
|
intel_pps_unlock_regs_wa(dev_priv);
|
|
}
|
|
|
|
static void vlv_display_power_well_deinit(struct drm_i915_private *dev_priv)
|
|
{
|
|
spin_lock_irq(&dev_priv->irq_lock);
|
|
valleyview_disable_display_irqs(dev_priv);
|
|
spin_unlock_irq(&dev_priv->irq_lock);
|
|
|
|
/* make sure we're done processing display irqs */
|
|
intel_synchronize_irq(dev_priv);
|
|
|
|
intel_pps_reset_all(dev_priv);
|
|
|
|
/* Prevent us from re-enabling polling on accident in late suspend */
|
|
if (!dev_priv->drm.dev->power.is_suspended)
|
|
intel_hpd_poll_enable(dev_priv);
|
|
}
|
|
|
|
static void vlv_display_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
vlv_set_power_well(dev_priv, power_well, true);
|
|
|
|
vlv_display_power_well_init(dev_priv);
|
|
}
|
|
|
|
static void vlv_display_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
vlv_display_power_well_deinit(dev_priv);
|
|
|
|
vlv_set_power_well(dev_priv, power_well, false);
|
|
}
|
|
|
|
static void vlv_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
/* since ref/cri clock was enabled */
|
|
udelay(1); /* >10ns for cmnreset, >0ns for sidereset */
|
|
|
|
vlv_set_power_well(dev_priv, power_well, true);
|
|
|
|
/*
|
|
* From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
|
|
* 6. De-assert cmn_reset/side_reset. Same as VLV X0.
|
|
* a. GUnit 0x2110 bit[0] set to 1 (def 0)
|
|
* b. The other bits such as sfr settings / modesel may all
|
|
* be set to 0.
|
|
*
|
|
* This should only be done on init and resume from S3 with
|
|
* both PLLs disabled, or we risk losing DPIO and PLL
|
|
* synchronization.
|
|
*/
|
|
intel_de_write(dev_priv, DPIO_CTL,
|
|
intel_de_read(dev_priv, DPIO_CTL) | DPIO_CMNRST);
|
|
}
|
|
|
|
static void vlv_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum pipe pipe;
|
|
|
|
for_each_pipe(dev_priv, pipe)
|
|
assert_pll_disabled(dev_priv, pipe);
|
|
|
|
/* Assert common reset */
|
|
intel_de_write(dev_priv, DPIO_CTL,
|
|
intel_de_read(dev_priv, DPIO_CTL) & ~DPIO_CMNRST);
|
|
|
|
vlv_set_power_well(dev_priv, power_well, false);
|
|
}
|
|
|
|
#define POWER_DOMAIN_MASK (GENMASK_ULL(POWER_DOMAIN_NUM - 1, 0))
|
|
|
|
#define BITS_SET(val, bits) (((val) & (bits)) == (bits))
|
|
|
|
static void assert_chv_phy_status(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_well *cmn_bc =
|
|
lookup_power_well(dev_priv, VLV_DISP_PW_DPIO_CMN_BC);
|
|
struct i915_power_well *cmn_d =
|
|
lookup_power_well(dev_priv, CHV_DISP_PW_DPIO_CMN_D);
|
|
u32 phy_control = dev_priv->chv_phy_control;
|
|
u32 phy_status = 0;
|
|
u32 phy_status_mask = 0xffffffff;
|
|
|
|
/*
|
|
* The BIOS can leave the PHY is some weird state
|
|
* where it doesn't fully power down some parts.
|
|
* Disable the asserts until the PHY has been fully
|
|
* reset (ie. the power well has been disabled at
|
|
* least once).
|
|
*/
|
|
if (!dev_priv->chv_phy_assert[DPIO_PHY0])
|
|
phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH0) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 0) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 1) |
|
|
PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH1) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 0) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 1));
|
|
|
|
if (!dev_priv->chv_phy_assert[DPIO_PHY1])
|
|
phy_status_mask &= ~(PHY_STATUS_CMN_LDO(DPIO_PHY1, DPIO_CH0) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 0) |
|
|
PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 1));
|
|
|
|
if (cmn_bc->desc->ops->is_enabled(dev_priv, cmn_bc)) {
|
|
phy_status |= PHY_POWERGOOD(DPIO_PHY0);
|
|
|
|
/* this assumes override is only used to enable lanes */
|
|
if ((phy_control & PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH0)) == 0)
|
|
phy_control |= PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY0, DPIO_CH0);
|
|
|
|
if ((phy_control & PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH1)) == 0)
|
|
phy_control |= PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY0, DPIO_CH1);
|
|
|
|
/* CL1 is on whenever anything is on in either channel */
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY0, DPIO_CH0) |
|
|
PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY0, DPIO_CH1)))
|
|
phy_status |= PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH0);
|
|
|
|
/*
|
|
* The DPLLB check accounts for the pipe B + port A usage
|
|
* with CL2 powered up but all the lanes in the second channel
|
|
* powered down.
|
|
*/
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY0, DPIO_CH1)) &&
|
|
(intel_de_read(dev_priv, DPLL(PIPE_B)) & DPLL_VCO_ENABLE) == 0)
|
|
phy_status |= PHY_STATUS_CMN_LDO(DPIO_PHY0, DPIO_CH1);
|
|
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0x3, DPIO_PHY0, DPIO_CH0)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 0);
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xc, DPIO_PHY0, DPIO_CH0)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH0, 1);
|
|
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0x3, DPIO_PHY0, DPIO_CH1)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 0);
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xc, DPIO_PHY0, DPIO_CH1)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY0, DPIO_CH1, 1);
|
|
}
|
|
|
|
if (cmn_d->desc->ops->is_enabled(dev_priv, cmn_d)) {
|
|
phy_status |= PHY_POWERGOOD(DPIO_PHY1);
|
|
|
|
/* this assumes override is only used to enable lanes */
|
|
if ((phy_control & PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY1, DPIO_CH0)) == 0)
|
|
phy_control |= PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY1, DPIO_CH0);
|
|
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xf, DPIO_PHY1, DPIO_CH0)))
|
|
phy_status |= PHY_STATUS_CMN_LDO(DPIO_PHY1, DPIO_CH0);
|
|
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0x3, DPIO_PHY1, DPIO_CH0)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 0);
|
|
if (BITS_SET(phy_control,
|
|
PHY_CH_POWER_DOWN_OVRD(0xc, DPIO_PHY1, DPIO_CH0)))
|
|
phy_status |= PHY_STATUS_SPLINE_LDO(DPIO_PHY1, DPIO_CH0, 1);
|
|
}
|
|
|
|
phy_status &= phy_status_mask;
|
|
|
|
/*
|
|
* The PHY may be busy with some initial calibration and whatnot,
|
|
* so the power state can take a while to actually change.
|
|
*/
|
|
if (intel_de_wait_for_register(dev_priv, DISPLAY_PHY_STATUS,
|
|
phy_status_mask, phy_status, 10))
|
|
drm_err(&dev_priv->drm,
|
|
"Unexpected PHY_STATUS 0x%08x, expected 0x%08x (PHY_CONTROL=0x%08x)\n",
|
|
intel_de_read(dev_priv, DISPLAY_PHY_STATUS) & phy_status_mask,
|
|
phy_status, dev_priv->chv_phy_control);
|
|
}
|
|
|
|
#undef BITS_SET
|
|
|
|
static void chv_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum dpio_phy phy;
|
|
enum pipe pipe;
|
|
u32 tmp;
|
|
|
|
drm_WARN_ON_ONCE(&dev_priv->drm,
|
|
power_well->desc->id != VLV_DISP_PW_DPIO_CMN_BC &&
|
|
power_well->desc->id != CHV_DISP_PW_DPIO_CMN_D);
|
|
|
|
if (power_well->desc->id == VLV_DISP_PW_DPIO_CMN_BC) {
|
|
pipe = PIPE_A;
|
|
phy = DPIO_PHY0;
|
|
} else {
|
|
pipe = PIPE_C;
|
|
phy = DPIO_PHY1;
|
|
}
|
|
|
|
/* since ref/cri clock was enabled */
|
|
udelay(1); /* >10ns for cmnreset, >0ns for sidereset */
|
|
vlv_set_power_well(dev_priv, power_well, true);
|
|
|
|
/* Poll for phypwrgood signal */
|
|
if (intel_de_wait_for_set(dev_priv, DISPLAY_PHY_STATUS,
|
|
PHY_POWERGOOD(phy), 1))
|
|
drm_err(&dev_priv->drm, "Display PHY %d is not power up\n",
|
|
phy);
|
|
|
|
vlv_dpio_get(dev_priv);
|
|
|
|
/* Enable dynamic power down */
|
|
tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW28);
|
|
tmp |= DPIO_DYNPWRDOWNEN_CH0 | DPIO_CL1POWERDOWNEN |
|
|
DPIO_SUS_CLK_CONFIG_GATE_CLKREQ;
|
|
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW28, tmp);
|
|
|
|
if (power_well->desc->id == VLV_DISP_PW_DPIO_CMN_BC) {
|
|
tmp = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW6_CH1);
|
|
tmp |= DPIO_DYNPWRDOWNEN_CH1;
|
|
vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW6_CH1, tmp);
|
|
} else {
|
|
/*
|
|
* Force the non-existing CL2 off. BXT does this
|
|
* too, so maybe it saves some power even though
|
|
* CL2 doesn't exist?
|
|
*/
|
|
tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW30);
|
|
tmp |= DPIO_CL2_LDOFUSE_PWRENB;
|
|
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW30, tmp);
|
|
}
|
|
|
|
vlv_dpio_put(dev_priv);
|
|
|
|
dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(phy);
|
|
intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
|
|
dev_priv->chv_phy_control);
|
|
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Enabled DPIO PHY%d (PHY_CONTROL=0x%08x)\n",
|
|
phy, dev_priv->chv_phy_control);
|
|
|
|
assert_chv_phy_status(dev_priv);
|
|
}
|
|
|
|
static void chv_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum dpio_phy phy;
|
|
|
|
drm_WARN_ON_ONCE(&dev_priv->drm,
|
|
power_well->desc->id != VLV_DISP_PW_DPIO_CMN_BC &&
|
|
power_well->desc->id != CHV_DISP_PW_DPIO_CMN_D);
|
|
|
|
if (power_well->desc->id == VLV_DISP_PW_DPIO_CMN_BC) {
|
|
phy = DPIO_PHY0;
|
|
assert_pll_disabled(dev_priv, PIPE_A);
|
|
assert_pll_disabled(dev_priv, PIPE_B);
|
|
} else {
|
|
phy = DPIO_PHY1;
|
|
assert_pll_disabled(dev_priv, PIPE_C);
|
|
}
|
|
|
|
dev_priv->chv_phy_control &= ~PHY_COM_LANE_RESET_DEASSERT(phy);
|
|
intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
|
|
dev_priv->chv_phy_control);
|
|
|
|
vlv_set_power_well(dev_priv, power_well, false);
|
|
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Disabled DPIO PHY%d (PHY_CONTROL=0x%08x)\n",
|
|
phy, dev_priv->chv_phy_control);
|
|
|
|
/* PHY is fully reset now, so we can enable the PHY state asserts */
|
|
dev_priv->chv_phy_assert[phy] = true;
|
|
|
|
assert_chv_phy_status(dev_priv);
|
|
}
|
|
|
|
static void assert_chv_phy_powergate(struct drm_i915_private *dev_priv, enum dpio_phy phy,
|
|
enum dpio_channel ch, bool override, unsigned int mask)
|
|
{
|
|
enum pipe pipe = phy == DPIO_PHY0 ? PIPE_A : PIPE_C;
|
|
u32 reg, val, expected, actual;
|
|
|
|
/*
|
|
* The BIOS can leave the PHY is some weird state
|
|
* where it doesn't fully power down some parts.
|
|
* Disable the asserts until the PHY has been fully
|
|
* reset (ie. the power well has been disabled at
|
|
* least once).
|
|
*/
|
|
if (!dev_priv->chv_phy_assert[phy])
|
|
return;
|
|
|
|
if (ch == DPIO_CH0)
|
|
reg = _CHV_CMN_DW0_CH0;
|
|
else
|
|
reg = _CHV_CMN_DW6_CH1;
|
|
|
|
vlv_dpio_get(dev_priv);
|
|
val = vlv_dpio_read(dev_priv, pipe, reg);
|
|
vlv_dpio_put(dev_priv);
|
|
|
|
/*
|
|
* This assumes !override is only used when the port is disabled.
|
|
* All lanes should power down even without the override when
|
|
* the port is disabled.
|
|
*/
|
|
if (!override || mask == 0xf) {
|
|
expected = DPIO_ALLDL_POWERDOWN | DPIO_ANYDL_POWERDOWN;
|
|
/*
|
|
* If CH1 common lane is not active anymore
|
|
* (eg. for pipe B DPLL) the entire channel will
|
|
* shut down, which causes the common lane registers
|
|
* to read as 0. That means we can't actually check
|
|
* the lane power down status bits, but as the entire
|
|
* register reads as 0 it's a good indication that the
|
|
* channel is indeed entirely powered down.
|
|
*/
|
|
if (ch == DPIO_CH1 && val == 0)
|
|
expected = 0;
|
|
} else if (mask != 0x0) {
|
|
expected = DPIO_ANYDL_POWERDOWN;
|
|
} else {
|
|
expected = 0;
|
|
}
|
|
|
|
if (ch == DPIO_CH0)
|
|
actual = val >> DPIO_ANYDL_POWERDOWN_SHIFT_CH0;
|
|
else
|
|
actual = val >> DPIO_ANYDL_POWERDOWN_SHIFT_CH1;
|
|
actual &= DPIO_ALLDL_POWERDOWN | DPIO_ANYDL_POWERDOWN;
|
|
|
|
drm_WARN(&dev_priv->drm, actual != expected,
|
|
"Unexpected DPIO lane power down: all %d, any %d. Expected: all %d, any %d. (0x%x = 0x%08x)\n",
|
|
!!(actual & DPIO_ALLDL_POWERDOWN),
|
|
!!(actual & DPIO_ANYDL_POWERDOWN),
|
|
!!(expected & DPIO_ALLDL_POWERDOWN),
|
|
!!(expected & DPIO_ANYDL_POWERDOWN),
|
|
reg, val);
|
|
}
|
|
|
|
bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
|
|
enum dpio_channel ch, bool override)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
bool was_override;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
was_override = dev_priv->chv_phy_control & PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
|
|
|
|
if (override == was_override)
|
|
goto out;
|
|
|
|
if (override)
|
|
dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
|
|
else
|
|
dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
|
|
|
|
intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
|
|
dev_priv->chv_phy_control);
|
|
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Power gating DPIO PHY%d CH%d (DPIO_PHY_CONTROL=0x%08x)\n",
|
|
phy, ch, dev_priv->chv_phy_control);
|
|
|
|
assert_chv_phy_status(dev_priv);
|
|
|
|
out:
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
return was_override;
|
|
}
|
|
|
|
void chv_phy_powergate_lanes(struct intel_encoder *encoder,
|
|
bool override, unsigned int mask)
|
|
{
|
|
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
enum dpio_phy phy = vlv_dig_port_to_phy(enc_to_dig_port(encoder));
|
|
enum dpio_channel ch = vlv_dig_port_to_channel(enc_to_dig_port(encoder));
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD(0xf, phy, ch);
|
|
dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD(mask, phy, ch);
|
|
|
|
if (override)
|
|
dev_priv->chv_phy_control |= PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
|
|
else
|
|
dev_priv->chv_phy_control &= ~PHY_CH_POWER_DOWN_OVRD_EN(phy, ch);
|
|
|
|
intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
|
|
dev_priv->chv_phy_control);
|
|
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Power gating DPIO PHY%d CH%d lanes 0x%x (PHY_CONTROL=0x%08x)\n",
|
|
phy, ch, mask, dev_priv->chv_phy_control);
|
|
|
|
assert_chv_phy_status(dev_priv);
|
|
|
|
assert_chv_phy_powergate(dev_priv, phy, ch, override, mask);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
static bool chv_pipe_power_well_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
enum pipe pipe = PIPE_A;
|
|
bool enabled;
|
|
u32 state, ctrl;
|
|
|
|
vlv_punit_get(dev_priv);
|
|
|
|
state = vlv_punit_read(dev_priv, PUNIT_REG_DSPSSPM) & DP_SSS_MASK(pipe);
|
|
/*
|
|
* We only ever set the power-on and power-gate states, anything
|
|
* else is unexpected.
|
|
*/
|
|
drm_WARN_ON(&dev_priv->drm, state != DP_SSS_PWR_ON(pipe) &&
|
|
state != DP_SSS_PWR_GATE(pipe));
|
|
enabled = state == DP_SSS_PWR_ON(pipe);
|
|
|
|
/*
|
|
* A transient state at this point would mean some unexpected party
|
|
* is poking at the power controls too.
|
|
*/
|
|
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_DSPSSPM) & DP_SSC_MASK(pipe);
|
|
drm_WARN_ON(&dev_priv->drm, ctrl << 16 != state);
|
|
|
|
vlv_punit_put(dev_priv);
|
|
|
|
return enabled;
|
|
}
|
|
|
|
static void chv_set_pipe_power_well(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well,
|
|
bool enable)
|
|
{
|
|
enum pipe pipe = PIPE_A;
|
|
u32 state;
|
|
u32 ctrl;
|
|
|
|
state = enable ? DP_SSS_PWR_ON(pipe) : DP_SSS_PWR_GATE(pipe);
|
|
|
|
vlv_punit_get(dev_priv);
|
|
|
|
#define COND \
|
|
((vlv_punit_read(dev_priv, PUNIT_REG_DSPSSPM) & DP_SSS_MASK(pipe)) == state)
|
|
|
|
if (COND)
|
|
goto out;
|
|
|
|
ctrl = vlv_punit_read(dev_priv, PUNIT_REG_DSPSSPM);
|
|
ctrl &= ~DP_SSC_MASK(pipe);
|
|
ctrl |= enable ? DP_SSC_PWR_ON(pipe) : DP_SSC_PWR_GATE(pipe);
|
|
vlv_punit_write(dev_priv, PUNIT_REG_DSPSSPM, ctrl);
|
|
|
|
if (wait_for(COND, 100))
|
|
drm_err(&dev_priv->drm,
|
|
"timeout setting power well state %08x (%08x)\n",
|
|
state,
|
|
vlv_punit_read(dev_priv, PUNIT_REG_DSPSSPM));
|
|
|
|
#undef COND
|
|
|
|
out:
|
|
vlv_punit_put(dev_priv);
|
|
}
|
|
|
|
static void chv_pipe_power_well_sync_hw(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
intel_de_write(dev_priv, DISPLAY_PHY_CONTROL,
|
|
dev_priv->chv_phy_control);
|
|
}
|
|
|
|
static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
chv_set_pipe_power_well(dev_priv, power_well, true);
|
|
|
|
vlv_display_power_well_init(dev_priv);
|
|
}
|
|
|
|
static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
vlv_display_power_well_deinit(dev_priv);
|
|
|
|
chv_set_pipe_power_well(dev_priv, power_well, false);
|
|
}
|
|
|
|
static u64 __async_put_domains_mask(struct i915_power_domains *power_domains)
|
|
{
|
|
return power_domains->async_put_domains[0] |
|
|
power_domains->async_put_domains[1];
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
|
|
static bool
|
|
assert_async_put_domain_masks_disjoint(struct i915_power_domains *power_domains)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
return !drm_WARN_ON(&i915->drm, power_domains->async_put_domains[0] &
|
|
power_domains->async_put_domains[1]);
|
|
}
|
|
|
|
static bool
|
|
__async_put_domains_state_ok(struct i915_power_domains *power_domains)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
enum intel_display_power_domain domain;
|
|
bool err = false;
|
|
|
|
err |= !assert_async_put_domain_masks_disjoint(power_domains);
|
|
err |= drm_WARN_ON(&i915->drm, !!power_domains->async_put_wakeref !=
|
|
!!__async_put_domains_mask(power_domains));
|
|
|
|
for_each_power_domain(domain, __async_put_domains_mask(power_domains))
|
|
err |= drm_WARN_ON(&i915->drm,
|
|
power_domains->domain_use_count[domain] != 1);
|
|
|
|
return !err;
|
|
}
|
|
|
|
static void print_power_domains(struct i915_power_domains *power_domains,
|
|
const char *prefix, u64 mask)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
enum intel_display_power_domain domain;
|
|
|
|
drm_dbg(&i915->drm, "%s (%lu):\n", prefix, hweight64(mask));
|
|
for_each_power_domain(domain, mask)
|
|
drm_dbg(&i915->drm, "%s use_count %d\n",
|
|
intel_display_power_domain_str(domain),
|
|
power_domains->domain_use_count[domain]);
|
|
}
|
|
|
|
static void
|
|
print_async_put_domains_state(struct i915_power_domains *power_domains)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
|
|
drm_dbg(&i915->drm, "async_put_wakeref %u\n",
|
|
power_domains->async_put_wakeref);
|
|
|
|
print_power_domains(power_domains, "async_put_domains[0]",
|
|
power_domains->async_put_domains[0]);
|
|
print_power_domains(power_domains, "async_put_domains[1]",
|
|
power_domains->async_put_domains[1]);
|
|
}
|
|
|
|
static void
|
|
verify_async_put_domains_state(struct i915_power_domains *power_domains)
|
|
{
|
|
if (!__async_put_domains_state_ok(power_domains))
|
|
print_async_put_domains_state(power_domains);
|
|
}
|
|
|
|
#else
|
|
|
|
static void
|
|
assert_async_put_domain_masks_disjoint(struct i915_power_domains *power_domains)
|
|
{
|
|
}
|
|
|
|
static void
|
|
verify_async_put_domains_state(struct i915_power_domains *power_domains)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_DRM_I915_DEBUG_RUNTIME_PM */
|
|
|
|
static u64 async_put_domains_mask(struct i915_power_domains *power_domains)
|
|
{
|
|
assert_async_put_domain_masks_disjoint(power_domains);
|
|
|
|
return __async_put_domains_mask(power_domains);
|
|
}
|
|
|
|
static void
|
|
async_put_domains_clear_domain(struct i915_power_domains *power_domains,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
assert_async_put_domain_masks_disjoint(power_domains);
|
|
|
|
power_domains->async_put_domains[0] &= ~BIT_ULL(domain);
|
|
power_domains->async_put_domains[1] &= ~BIT_ULL(domain);
|
|
}
|
|
|
|
static bool
|
|
intel_display_power_grab_async_put_ref(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
bool ret = false;
|
|
|
|
if (!(async_put_domains_mask(power_domains) & BIT_ULL(domain)))
|
|
goto out_verify;
|
|
|
|
async_put_domains_clear_domain(power_domains, domain);
|
|
|
|
ret = true;
|
|
|
|
if (async_put_domains_mask(power_domains))
|
|
goto out_verify;
|
|
|
|
cancel_delayed_work(&power_domains->async_put_work);
|
|
intel_runtime_pm_put_raw(&dev_priv->runtime_pm,
|
|
fetch_and_zero(&power_domains->async_put_wakeref));
|
|
out_verify:
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
__intel_display_power_get_domain(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *power_well;
|
|
|
|
if (intel_display_power_grab_async_put_ref(dev_priv, domain))
|
|
return;
|
|
|
|
for_each_power_domain_well(dev_priv, power_well, BIT_ULL(domain))
|
|
intel_power_well_get(dev_priv, power_well);
|
|
|
|
power_domains->domain_use_count[domain]++;
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_get - grab a power domain reference
|
|
* @dev_priv: i915 device instance
|
|
* @domain: power domain to reference
|
|
*
|
|
* This function grabs a power domain reference for @domain and ensures that the
|
|
* power domain and all its parents are powered up. Therefore users should only
|
|
* grab a reference to the innermost power domain they need.
|
|
*
|
|
* Any power domain reference obtained by this function must have a symmetric
|
|
* call to intel_display_power_put() to release the reference again.
|
|
*/
|
|
intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
intel_wakeref_t wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
__intel_display_power_get_domain(dev_priv, domain);
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
return wakeref;
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_get_if_enabled - grab a reference for an enabled display power domain
|
|
* @dev_priv: i915 device instance
|
|
* @domain: power domain to reference
|
|
*
|
|
* This function grabs a power domain reference for @domain and ensures that the
|
|
* power domain and all its parents are powered up. Therefore users should only
|
|
* grab a reference to the innermost power domain they need.
|
|
*
|
|
* Any power domain reference obtained by this function must have a symmetric
|
|
* call to intel_display_power_put() to release the reference again.
|
|
*/
|
|
intel_wakeref_t
|
|
intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
intel_wakeref_t wakeref;
|
|
bool is_enabled;
|
|
|
|
wakeref = intel_runtime_pm_get_if_in_use(&dev_priv->runtime_pm);
|
|
if (!wakeref)
|
|
return false;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
if (__intel_display_power_is_enabled(dev_priv, domain)) {
|
|
__intel_display_power_get_domain(dev_priv, domain);
|
|
is_enabled = true;
|
|
} else {
|
|
is_enabled = false;
|
|
}
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
if (!is_enabled) {
|
|
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
|
|
wakeref = 0;
|
|
}
|
|
|
|
return wakeref;
|
|
}
|
|
|
|
static void
|
|
__intel_display_power_put_domain(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains;
|
|
struct i915_power_well *power_well;
|
|
const char *name = intel_display_power_domain_str(domain);
|
|
|
|
power_domains = &dev_priv->power_domains;
|
|
|
|
drm_WARN(&dev_priv->drm, !power_domains->domain_use_count[domain],
|
|
"Use count on domain %s is already zero\n",
|
|
name);
|
|
drm_WARN(&dev_priv->drm,
|
|
async_put_domains_mask(power_domains) & BIT_ULL(domain),
|
|
"Async disabling of domain %s is pending\n",
|
|
name);
|
|
|
|
power_domains->domain_use_count[domain]--;
|
|
|
|
for_each_power_domain_well_reverse(dev_priv, power_well, BIT_ULL(domain))
|
|
intel_power_well_put(dev_priv, power_well);
|
|
}
|
|
|
|
static void __intel_display_power_put(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
__intel_display_power_put_domain(dev_priv, domain);
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
static void
|
|
queue_async_put_domains_work(struct i915_power_domains *power_domains,
|
|
intel_wakeref_t wakeref)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
drm_WARN_ON(&i915->drm, power_domains->async_put_wakeref);
|
|
power_domains->async_put_wakeref = wakeref;
|
|
drm_WARN_ON(&i915->drm, !queue_delayed_work(system_unbound_wq,
|
|
&power_domains->async_put_work,
|
|
msecs_to_jiffies(100)));
|
|
}
|
|
|
|
static void
|
|
release_async_put_domains(struct i915_power_domains *power_domains, u64 mask)
|
|
{
|
|
struct drm_i915_private *dev_priv =
|
|
container_of(power_domains, struct drm_i915_private,
|
|
power_domains);
|
|
struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
|
|
enum intel_display_power_domain domain;
|
|
intel_wakeref_t wakeref;
|
|
|
|
/*
|
|
* The caller must hold already raw wakeref, upgrade that to a proper
|
|
* wakeref to make the state checker happy about the HW access during
|
|
* power well disabling.
|
|
*/
|
|
assert_rpm_raw_wakeref_held(rpm);
|
|
wakeref = intel_runtime_pm_get(rpm);
|
|
|
|
for_each_power_domain(domain, mask) {
|
|
/* Clear before put, so put's sanity check is happy. */
|
|
async_put_domains_clear_domain(power_domains, domain);
|
|
__intel_display_power_put_domain(dev_priv, domain);
|
|
}
|
|
|
|
intel_runtime_pm_put(rpm, wakeref);
|
|
}
|
|
|
|
static void
|
|
intel_display_power_put_async_work(struct work_struct *work)
|
|
{
|
|
struct drm_i915_private *dev_priv =
|
|
container_of(work, struct drm_i915_private,
|
|
power_domains.async_put_work.work);
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct intel_runtime_pm *rpm = &dev_priv->runtime_pm;
|
|
intel_wakeref_t new_work_wakeref = intel_runtime_pm_get_raw(rpm);
|
|
intel_wakeref_t old_work_wakeref = 0;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
/*
|
|
* Bail out if all the domain refs pending to be released were grabbed
|
|
* by subsequent gets or a flush_work.
|
|
*/
|
|
old_work_wakeref = fetch_and_zero(&power_domains->async_put_wakeref);
|
|
if (!old_work_wakeref)
|
|
goto out_verify;
|
|
|
|
release_async_put_domains(power_domains,
|
|
power_domains->async_put_domains[0]);
|
|
|
|
/* Requeue the work if more domains were async put meanwhile. */
|
|
if (power_domains->async_put_domains[1]) {
|
|
power_domains->async_put_domains[0] =
|
|
fetch_and_zero(&power_domains->async_put_domains[1]);
|
|
queue_async_put_domains_work(power_domains,
|
|
fetch_and_zero(&new_work_wakeref));
|
|
} else {
|
|
/*
|
|
* Cancel the work that got queued after this one got dequeued,
|
|
* since here we released the corresponding async-put reference.
|
|
*/
|
|
cancel_delayed_work(&power_domains->async_put_work);
|
|
}
|
|
|
|
out_verify:
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
if (old_work_wakeref)
|
|
intel_runtime_pm_put_raw(rpm, old_work_wakeref);
|
|
if (new_work_wakeref)
|
|
intel_runtime_pm_put_raw(rpm, new_work_wakeref);
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_put_async - release a power domain reference asynchronously
|
|
* @i915: i915 device instance
|
|
* @domain: power domain to reference
|
|
* @wakeref: wakeref acquired for the reference that is being released
|
|
*
|
|
* This function drops the power domain reference obtained by
|
|
* intel_display_power_get*() and schedules a work to power down the
|
|
* corresponding hardware block if this is the last reference.
|
|
*/
|
|
void __intel_display_power_put_async(struct drm_i915_private *i915,
|
|
enum intel_display_power_domain domain,
|
|
intel_wakeref_t wakeref)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
struct intel_runtime_pm *rpm = &i915->runtime_pm;
|
|
intel_wakeref_t work_wakeref = intel_runtime_pm_get_raw(rpm);
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
if (power_domains->domain_use_count[domain] > 1) {
|
|
__intel_display_power_put_domain(i915, domain);
|
|
|
|
goto out_verify;
|
|
}
|
|
|
|
drm_WARN_ON(&i915->drm, power_domains->domain_use_count[domain] != 1);
|
|
|
|
/* Let a pending work requeue itself or queue a new one. */
|
|
if (power_domains->async_put_wakeref) {
|
|
power_domains->async_put_domains[1] |= BIT_ULL(domain);
|
|
} else {
|
|
power_domains->async_put_domains[0] |= BIT_ULL(domain);
|
|
queue_async_put_domains_work(power_domains,
|
|
fetch_and_zero(&work_wakeref));
|
|
}
|
|
|
|
out_verify:
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
if (work_wakeref)
|
|
intel_runtime_pm_put_raw(rpm, work_wakeref);
|
|
|
|
intel_runtime_pm_put(rpm, wakeref);
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_flush_work - flushes the async display power disabling work
|
|
* @i915: i915 device instance
|
|
*
|
|
* Flushes any pending work that was scheduled by a preceding
|
|
* intel_display_power_put_async() call, completing the disabling of the
|
|
* corresponding power domains.
|
|
*
|
|
* Note that the work handler function may still be running after this
|
|
* function returns; to ensure that the work handler isn't running use
|
|
* intel_display_power_flush_work_sync() instead.
|
|
*/
|
|
void intel_display_power_flush_work(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
intel_wakeref_t work_wakeref;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
work_wakeref = fetch_and_zero(&power_domains->async_put_wakeref);
|
|
if (!work_wakeref)
|
|
goto out_verify;
|
|
|
|
release_async_put_domains(power_domains,
|
|
async_put_domains_mask(power_domains));
|
|
cancel_delayed_work(&power_domains->async_put_work);
|
|
|
|
out_verify:
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
if (work_wakeref)
|
|
intel_runtime_pm_put_raw(&i915->runtime_pm, work_wakeref);
|
|
}
|
|
|
|
/**
|
|
* intel_display_power_flush_work_sync - flushes and syncs the async display power disabling work
|
|
* @i915: i915 device instance
|
|
*
|
|
* Like intel_display_power_flush_work(), but also ensure that the work
|
|
* handler function is not running any more when this function returns.
|
|
*/
|
|
static void
|
|
intel_display_power_flush_work_sync(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
|
|
intel_display_power_flush_work(i915);
|
|
cancel_delayed_work_sync(&power_domains->async_put_work);
|
|
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
drm_WARN_ON(&i915->drm, power_domains->async_put_wakeref);
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
/**
|
|
* intel_display_power_put - release a power domain reference
|
|
* @dev_priv: i915 device instance
|
|
* @domain: power domain to reference
|
|
* @wakeref: wakeref acquired for the reference that is being released
|
|
*
|
|
* This function drops the power domain reference obtained by
|
|
* intel_display_power_get() and might power down the corresponding hardware
|
|
* block right away if this is the last reference.
|
|
*/
|
|
void intel_display_power_put(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain,
|
|
intel_wakeref_t wakeref)
|
|
{
|
|
__intel_display_power_put(dev_priv, domain);
|
|
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
|
|
}
|
|
#else
|
|
/**
|
|
* intel_display_power_put_unchecked - release an unchecked power domain reference
|
|
* @dev_priv: i915 device instance
|
|
* @domain: power domain to reference
|
|
*
|
|
* This function drops the power domain reference obtained by
|
|
* intel_display_power_get() and might power down the corresponding hardware
|
|
* block right away if this is the last reference.
|
|
*
|
|
* This function is only for the power domain code's internal use to suppress wakeref
|
|
* tracking when the correspondig debug kconfig option is disabled, should not
|
|
* be used otherwise.
|
|
*/
|
|
void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
__intel_display_power_put(dev_priv, domain);
|
|
intel_runtime_pm_put_unchecked(&dev_priv->runtime_pm);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
intel_display_power_get_in_set(struct drm_i915_private *i915,
|
|
struct intel_display_power_domain_set *power_domain_set,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
intel_wakeref_t __maybe_unused wf;
|
|
|
|
drm_WARN_ON(&i915->drm, power_domain_set->mask & BIT_ULL(domain));
|
|
|
|
wf = intel_display_power_get(i915, domain);
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
power_domain_set->wakerefs[domain] = wf;
|
|
#endif
|
|
power_domain_set->mask |= BIT_ULL(domain);
|
|
}
|
|
|
|
bool
|
|
intel_display_power_get_in_set_if_enabled(struct drm_i915_private *i915,
|
|
struct intel_display_power_domain_set *power_domain_set,
|
|
enum intel_display_power_domain domain)
|
|
{
|
|
intel_wakeref_t wf;
|
|
|
|
drm_WARN_ON(&i915->drm, power_domain_set->mask & BIT_ULL(domain));
|
|
|
|
wf = intel_display_power_get_if_enabled(i915, domain);
|
|
if (!wf)
|
|
return false;
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
power_domain_set->wakerefs[domain] = wf;
|
|
#endif
|
|
power_domain_set->mask |= BIT_ULL(domain);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
intel_display_power_put_mask_in_set(struct drm_i915_private *i915,
|
|
struct intel_display_power_domain_set *power_domain_set,
|
|
u64 mask)
|
|
{
|
|
enum intel_display_power_domain domain;
|
|
|
|
drm_WARN_ON(&i915->drm, mask & ~power_domain_set->mask);
|
|
|
|
for_each_power_domain(domain, mask) {
|
|
intel_wakeref_t __maybe_unused wf = -1;
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
wf = fetch_and_zero(&power_domain_set->wakerefs[domain]);
|
|
#endif
|
|
intel_display_power_put(i915, domain, wf);
|
|
power_domain_set->mask &= ~BIT_ULL(domain);
|
|
}
|
|
}
|
|
|
|
#define I830_PIPES_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DISPLAY_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_DISPLAY_CORE) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DSI) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_CRT) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_GMBUS) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DPIO_CMN_BC_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_CRT) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define CHV_DISPLAY_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_DISPLAY_CORE) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DSI) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D) | \
|
|
BIT_ULL(POWER_DOMAIN_GMBUS) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define CHV_DPIO_CMN_BC_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define CHV_DPIO_CMN_D_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define HSW_DISPLAY_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define BDW_DISPLAY_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_CRT) | /* DDI E */ \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define SKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define BXT_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_GMBUS) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define BXT_DPIO_CMN_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define BXT_DPIO_CMN_BC_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO))
|
|
#define GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO))
|
|
#define GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO))
|
|
#define GLK_DPIO_CMN_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_A_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DPIO_CMN_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DPIO_CMN_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DISPLAY_AUX_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_IO_A) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DISPLAY_AUX_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DISPLAY_AUX_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
#define GLK_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_GT_IRQ) | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_GMBUS) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
/*
|
|
* ICL PW_0/PG_0 domains (HW/DMC control):
|
|
* - PCI
|
|
* - clocks except port PLL
|
|
* - central power except FBC
|
|
* - shared functions except pipe interrupts, pipe MBUS, DBUF registers
|
|
* ICL PW_1/PG_1 domains (HW/DMC control):
|
|
* - DBUF function
|
|
* - PIPE_A and its planes, except VGA
|
|
* - transcoder EDP + PSR
|
|
* - transcoder DSI
|
|
* - DDI_A
|
|
* - FBC
|
|
*/
|
|
#define ICL_PW_4_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
/* VDSC/joining */
|
|
#define ICL_PW_3_POWER_DOMAINS ( \
|
|
ICL_PW_4_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_A) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_E_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_F_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_E) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_F) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C_TBT) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D_TBT) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_E_TBT) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_F_TBT) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
/*
|
|
* - transcoder WD
|
|
* - KVMR (HW control)
|
|
*/
|
|
#define ICL_PW_2_POWER_DOMAINS ( \
|
|
ICL_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_VDSC_PW2) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
/*
|
|
* - KVMR (HW control)
|
|
*/
|
|
#define ICL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
ICL_PW_2_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_DPLL_DC_OFF) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define ICL_DDI_IO_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_A_IO))
|
|
#define ICL_DDI_IO_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_B_IO))
|
|
#define ICL_DDI_IO_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_IO))
|
|
#define ICL_DDI_IO_D_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_D_IO))
|
|
#define ICL_DDI_IO_E_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_E_IO))
|
|
#define ICL_DDI_IO_F_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_F_IO))
|
|
|
|
#define ICL_AUX_A_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_IO_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A))
|
|
#define ICL_AUX_B_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B))
|
|
#define ICL_AUX_C_TC1_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C))
|
|
#define ICL_AUX_D_TC2_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D))
|
|
#define ICL_AUX_E_TC3_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_E))
|
|
#define ICL_AUX_F_TC4_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_F))
|
|
#define ICL_AUX_C_TBT1_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C_TBT))
|
|
#define ICL_AUX_D_TBT2_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D_TBT))
|
|
#define ICL_AUX_E_TBT3_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_E_TBT))
|
|
#define ICL_AUX_F_TBT4_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_F_TBT))
|
|
|
|
#define TGL_PW_5_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_D) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_D) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_D_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define TGL_PW_4_POWER_DOMAINS ( \
|
|
TGL_PW_5_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define TGL_PW_3_POWER_DOMAINS ( \
|
|
TGL_PW_4_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC1) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC2) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC3) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC4) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC5) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC6) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC5) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC6) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT5) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT6) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define TGL_PW_2_POWER_DOMAINS ( \
|
|
TGL_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_VDSC_PW2) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define TGL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
TGL_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define TGL_DDI_IO_TC1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC1)
|
|
#define TGL_DDI_IO_TC2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC2)
|
|
#define TGL_DDI_IO_TC3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC3)
|
|
#define TGL_DDI_IO_TC4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC4)
|
|
#define TGL_DDI_IO_TC5_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC5)
|
|
#define TGL_DDI_IO_TC6_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC6)
|
|
|
|
#define TGL_AUX_A_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_IO_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A))
|
|
#define TGL_AUX_B_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B))
|
|
#define TGL_AUX_C_IO_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C))
|
|
|
|
#define TGL_AUX_IO_USBC1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC1)
|
|
#define TGL_AUX_IO_USBC2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC2)
|
|
#define TGL_AUX_IO_USBC3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC3)
|
|
#define TGL_AUX_IO_USBC4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC4)
|
|
#define TGL_AUX_IO_USBC5_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC5)
|
|
#define TGL_AUX_IO_USBC6_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC6)
|
|
|
|
#define TGL_AUX_IO_TBT1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT1)
|
|
#define TGL_AUX_IO_TBT2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT2)
|
|
#define TGL_AUX_IO_TBT3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT3)
|
|
#define TGL_AUX_IO_TBT4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT4)
|
|
#define TGL_AUX_IO_TBT5_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT5)
|
|
#define TGL_AUX_IO_TBT6_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT6)
|
|
|
|
#define TGL_TC_COLD_OFF_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC5) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC6) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT5) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT6) | \
|
|
BIT_ULL(POWER_DOMAIN_TC_COLD_OFF))
|
|
|
|
#define RKL_PW_4_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define RKL_PW_3_POWER_DOMAINS ( \
|
|
RKL_PW_4_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC1) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC2) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
/*
|
|
* There is no PW_2/PG_2 on RKL.
|
|
*
|
|
* RKL PW_1/PG_1 domains (under HW/DMC control):
|
|
* - DBUF function (note: registers are in PW0)
|
|
* - PIPE_A and its planes and VDSC/joining, except VGA
|
|
* - transcoder A
|
|
* - DDI_A and DDI_B
|
|
* - FBC
|
|
*
|
|
* RKL PW_0/PG_0 domains (under HW/DMC control):
|
|
* - PCI
|
|
* - clocks except port PLL
|
|
* - shared functions:
|
|
* * interrupts except pipe interrupts
|
|
* * MBus except PIPE_MBUS_DBOX_CTL
|
|
* * DBUF registers
|
|
* - central power except FBC
|
|
* - top-level GTC (DDI-level GTC is in the well associated with the DDI)
|
|
*/
|
|
|
|
#define RKL_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
RKL_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
/*
|
|
* DG1 onwards Audio MMIO/VERBS lies in PG0 power well.
|
|
*/
|
|
#define DG1_PW_3_POWER_DOMAINS ( \
|
|
TGL_PW_4_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC1) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC2) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define DG1_PW_2_POWER_DOMAINS ( \
|
|
DG1_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_VDSC_PW2) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define DG1_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
DG1_PW_3_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
/*
|
|
* XE_LPD Power Domains
|
|
*
|
|
* Previous platforms required that PG(n-1) be enabled before PG(n). That
|
|
* dependency chain turns into a dependency tree on XE_LPD:
|
|
*
|
|
* PG0
|
|
* |
|
|
* --PG1--
|
|
* / \
|
|
* PGA --PG2--
|
|
* / | \
|
|
* PGB PGC PGD
|
|
*
|
|
* Power wells must be enabled from top to bottom and disabled from bottom
|
|
* to top. This allows pipes to be power gated independently.
|
|
*/
|
|
|
|
#define XELPD_PW_D_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_D) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_D_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_D) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define XELPD_PW_C_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_C_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_C) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define XELPD_PW_B_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_B_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_TRANSCODER_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define XELPD_PW_A_POWER_DOMAINS ( \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A) | \
|
|
BIT_ULL(POWER_DOMAIN_PIPE_A_PANEL_FITTER) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define XELPD_PW_2_POWER_DOMAINS ( \
|
|
XELPD_PW_B_POWER_DOMAINS | \
|
|
XELPD_PW_C_POWER_DOMAINS | \
|
|
XELPD_PW_D_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_PLAYBACK) | \
|
|
BIT_ULL(POWER_DOMAIN_VGA) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_C_LANES) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_D_XELPD) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_E_XELPD) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC1) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC2) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC3) | \
|
|
BIT_ULL(POWER_DOMAIN_PORT_DDI_LANES_TC4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_C) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_D_XELPD) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_E_XELPD) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_USBC4) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT1) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT2) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT3) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_TBT4) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
/*
|
|
* XELPD PW_1/PG_1 domains (under HW/DMC control):
|
|
* - DBUF function (registers are in PW0)
|
|
* - Transcoder A
|
|
* - DDI_A and DDI_B
|
|
*
|
|
* XELPD PW_0/PW_1 domains (under HW/DMC control):
|
|
* - PCI
|
|
* - Clocks except port PLL
|
|
* - Shared functions:
|
|
* * interrupts except pipe interrupts
|
|
* * MBus except PIPE_MBUS_DBOX_CTL
|
|
* * DBUF registers
|
|
* - Central power except FBC
|
|
* - Top-level GTC (DDI-level GTC is in the well associated with the DDI)
|
|
*/
|
|
|
|
#define XELPD_DISPLAY_DC_OFF_POWER_DOMAINS ( \
|
|
XELPD_PW_2_POWER_DOMAINS | \
|
|
BIT_ULL(POWER_DOMAIN_AUDIO_MMIO) | \
|
|
BIT_ULL(POWER_DOMAIN_MODESET) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_A) | \
|
|
BIT_ULL(POWER_DOMAIN_AUX_B) | \
|
|
BIT_ULL(POWER_DOMAIN_INIT))
|
|
|
|
#define XELPD_AUX_IO_D_XELPD_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_D_XELPD)
|
|
#define XELPD_AUX_IO_E_XELPD_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_E_XELPD)
|
|
#define XELPD_AUX_IO_USBC1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC1)
|
|
#define XELPD_AUX_IO_USBC2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC2)
|
|
#define XELPD_AUX_IO_USBC3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC3)
|
|
#define XELPD_AUX_IO_USBC4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_USBC4)
|
|
|
|
#define XELPD_AUX_IO_TBT1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT1)
|
|
#define XELPD_AUX_IO_TBT2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT2)
|
|
#define XELPD_AUX_IO_TBT3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT3)
|
|
#define XELPD_AUX_IO_TBT4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_AUX_TBT4)
|
|
|
|
#define XELPD_DDI_IO_D_XELPD_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_D_XELPD)
|
|
#define XELPD_DDI_IO_E_XELPD_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_E_XELPD)
|
|
#define XELPD_DDI_IO_TC1_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC1)
|
|
#define XELPD_DDI_IO_TC2_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC2)
|
|
#define XELPD_DDI_IO_TC3_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC3)
|
|
#define XELPD_DDI_IO_TC4_POWER_DOMAINS BIT_ULL(POWER_DOMAIN_PORT_DDI_IO_TC4)
|
|
|
|
static const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = i9xx_always_on_power_well_noop,
|
|
.disable = i9xx_always_on_power_well_noop,
|
|
.is_enabled = i9xx_always_on_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops chv_pipe_power_well_ops = {
|
|
.sync_hw = chv_pipe_power_well_sync_hw,
|
|
.enable = chv_pipe_power_well_enable,
|
|
.disable = chv_pipe_power_well_disable,
|
|
.is_enabled = chv_pipe_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops chv_dpio_cmn_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = chv_dpio_cmn_power_well_enable,
|
|
.disable = chv_dpio_cmn_power_well_disable,
|
|
.is_enabled = vlv_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_desc i9xx_always_on_power_well[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_ops i830_pipes_power_well_ops = {
|
|
.sync_hw = i830_pipes_power_well_sync_hw,
|
|
.enable = i830_pipes_power_well_enable,
|
|
.disable = i830_pipes_power_well_disable,
|
|
.is_enabled = i830_pipes_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_desc i830_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "pipes",
|
|
.domains = I830_PIPES_POWER_DOMAINS,
|
|
.ops = &i830_pipes_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_ops hsw_power_well_ops = {
|
|
.sync_hw = hsw_power_well_sync_hw,
|
|
.enable = hsw_power_well_enable,
|
|
.disable = hsw_power_well_disable,
|
|
.is_enabled = hsw_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops gen9_dc_off_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = gen9_dc_off_power_well_enable,
|
|
.disable = gen9_dc_off_power_well_disable,
|
|
.is_enabled = gen9_dc_off_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops bxt_dpio_cmn_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = bxt_dpio_cmn_power_well_enable,
|
|
.disable = bxt_dpio_cmn_power_well_disable,
|
|
.is_enabled = bxt_dpio_cmn_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_regs hsw_power_well_regs = {
|
|
.bios = HSW_PWR_WELL_CTL1,
|
|
.driver = HSW_PWR_WELL_CTL2,
|
|
.kvmr = HSW_PWR_WELL_CTL3,
|
|
.debug = HSW_PWR_WELL_CTL4,
|
|
};
|
|
|
|
static const struct i915_power_well_desc hsw_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "display",
|
|
.domains = HSW_DISPLAY_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = HSW_DISP_PW_GLOBAL,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = HSW_PW_CTL_IDX_GLOBAL,
|
|
.hsw.has_vga = true,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc bdw_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "display",
|
|
.domains = BDW_DISPLAY_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = HSW_DISP_PW_GLOBAL,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = HSW_PW_CTL_IDX_GLOBAL,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
|
|
.hsw.has_vga = true,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_ops vlv_display_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = vlv_display_power_well_enable,
|
|
.disable = vlv_display_power_well_disable,
|
|
.is_enabled = vlv_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops vlv_dpio_cmn_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = vlv_dpio_cmn_power_well_enable,
|
|
.disable = vlv_dpio_cmn_power_well_disable,
|
|
.is_enabled = vlv_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_ops vlv_dpio_power_well_ops = {
|
|
.sync_hw = i9xx_power_well_sync_hw_noop,
|
|
.enable = vlv_power_well_enable,
|
|
.disable = vlv_power_well_disable,
|
|
.is_enabled = vlv_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_desc vlv_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "display",
|
|
.domains = VLV_DISPLAY_POWER_DOMAINS,
|
|
.ops = &vlv_display_power_well_ops,
|
|
.id = VLV_DISP_PW_DISP2D,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DISP2D,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-tx-b-01",
|
|
.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
|
|
.ops = &vlv_dpio_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_TX_B_LANES_01,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-tx-b-23",
|
|
.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
|
|
.ops = &vlv_dpio_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_TX_B_LANES_23,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-tx-c-01",
|
|
.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
|
|
.ops = &vlv_dpio_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_TX_C_LANES_01,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-tx-c-23",
|
|
.domains = VLV_DPIO_TX_B_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_B_LANES_23_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
|
|
VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
|
|
.ops = &vlv_dpio_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_TX_C_LANES_23,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common",
|
|
.domains = VLV_DPIO_CMN_BC_POWER_DOMAINS,
|
|
.ops = &vlv_dpio_cmn_power_well_ops,
|
|
.id = VLV_DISP_PW_DPIO_CMN_BC,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_CMN_BC,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc chv_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "display",
|
|
/*
|
|
* Pipe A power well is the new disp2d well. Pipe B and C
|
|
* power wells don't actually exist. Pipe A power well is
|
|
* required for any pipe to work.
|
|
*/
|
|
.domains = CHV_DISPLAY_POWER_DOMAINS,
|
|
.ops = &chv_pipe_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "dpio-common-bc",
|
|
.domains = CHV_DPIO_CMN_BC_POWER_DOMAINS,
|
|
.ops = &chv_dpio_cmn_power_well_ops,
|
|
.id = VLV_DISP_PW_DPIO_CMN_BC,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_CMN_BC,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-d",
|
|
.domains = CHV_DPIO_CMN_D_POWER_DOMAINS,
|
|
.ops = &chv_dpio_cmn_power_well_ops,
|
|
.id = CHV_DISP_PW_DPIO_CMN_D,
|
|
{
|
|
.vlv.idx = PUNIT_PWGT_IDX_DPIO_CMN_D,
|
|
},
|
|
},
|
|
};
|
|
|
|
bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv,
|
|
enum i915_power_well_id power_well_id)
|
|
{
|
|
struct i915_power_well *power_well;
|
|
bool ret;
|
|
|
|
power_well = lookup_power_well(dev_priv, power_well_id);
|
|
ret = power_well->desc->ops->is_enabled(dev_priv, power_well);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct i915_power_well_desc skl_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "MISC IO power well",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_MISC_IO,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_MISC_IO,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = SKL_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_2,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A/E IO power well",
|
|
.domains = SKL_DISPLAY_DDI_IO_A_E_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_A_E,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI B IO power well",
|
|
.domains = SKL_DISPLAY_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI C IO power well",
|
|
.domains = SKL_DISPLAY_DDI_IO_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_C,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI D IO power well",
|
|
.domains = SKL_DISPLAY_DDI_IO_D_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_D,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc bxt_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = BXT_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_2,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-a",
|
|
.domains = BXT_DPIO_CMN_A_POWER_DOMAINS,
|
|
.ops = &bxt_dpio_cmn_power_well_ops,
|
|
.id = BXT_DISP_PW_DPIO_CMN_A,
|
|
{
|
|
.bxt.phy = DPIO_PHY1,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-bc",
|
|
.domains = BXT_DPIO_CMN_BC_POWER_DOMAINS,
|
|
.ops = &bxt_dpio_cmn_power_well_ops,
|
|
.id = VLV_DISP_PW_DPIO_CMN_BC,
|
|
{
|
|
.bxt.phy = DPIO_PHY0,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc glk_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = GLK_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_PW_2,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B) | BIT(PIPE_C),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-a",
|
|
.domains = GLK_DPIO_CMN_A_POWER_DOMAINS,
|
|
.ops = &bxt_dpio_cmn_power_well_ops,
|
|
.id = BXT_DISP_PW_DPIO_CMN_A,
|
|
{
|
|
.bxt.phy = DPIO_PHY1,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-b",
|
|
.domains = GLK_DPIO_CMN_B_POWER_DOMAINS,
|
|
.ops = &bxt_dpio_cmn_power_well_ops,
|
|
.id = VLV_DISP_PW_DPIO_CMN_BC,
|
|
{
|
|
.bxt.phy = DPIO_PHY0,
|
|
},
|
|
},
|
|
{
|
|
.name = "dpio-common-c",
|
|
.domains = GLK_DPIO_CMN_C_POWER_DOMAINS,
|
|
.ops = &bxt_dpio_cmn_power_well_ops,
|
|
.id = GLK_DISP_PW_DPIO_CMN_C,
|
|
{
|
|
.bxt.phy = DPIO_PHY2,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = GLK_DISPLAY_AUX_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = GLK_PW_CTL_IDX_AUX_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = GLK_DISPLAY_AUX_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = GLK_PW_CTL_IDX_AUX_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX C",
|
|
.domains = GLK_DISPLAY_AUX_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = GLK_PW_CTL_IDX_AUX_C,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A IO power well",
|
|
.domains = GLK_DISPLAY_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = GLK_PW_CTL_IDX_DDI_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI B IO power well",
|
|
.domains = GLK_DISPLAY_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI C IO power well",
|
|
.domains = GLK_DISPLAY_DDI_IO_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = SKL_PW_CTL_IDX_DDI_C,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_ops icl_aux_power_well_ops = {
|
|
.sync_hw = hsw_power_well_sync_hw,
|
|
.enable = icl_aux_power_well_enable,
|
|
.disable = icl_aux_power_well_disable,
|
|
.is_enabled = hsw_power_well_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_regs icl_aux_power_well_regs = {
|
|
.bios = ICL_PWR_WELL_CTL_AUX1,
|
|
.driver = ICL_PWR_WELL_CTL_AUX2,
|
|
.debug = ICL_PWR_WELL_CTL_AUX4,
|
|
};
|
|
|
|
static const struct i915_power_well_regs icl_ddi_power_well_regs = {
|
|
.bios = ICL_PWR_WELL_CTL_DDI1,
|
|
.driver = ICL_PWR_WELL_CTL_DDI2,
|
|
.debug = ICL_PWR_WELL_CTL_DDI4,
|
|
};
|
|
|
|
static const struct i915_power_well_desc icl_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = ICL_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = ICL_PW_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_2,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 3",
|
|
.domains = ICL_PW_3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = ICL_DISP_PW_3,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_3,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A IO",
|
|
.domains = ICL_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI B IO",
|
|
.domains = ICL_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI C IO",
|
|
.domains = ICL_DDI_IO_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_C,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI D IO",
|
|
.domains = ICL_DDI_IO_D_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_D,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI E IO",
|
|
.domains = ICL_DDI_IO_E_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_E,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI F IO",
|
|
.domains = ICL_DDI_IO_F_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_F,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = ICL_AUX_A_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = ICL_AUX_B_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX C TC1",
|
|
.domains = ICL_AUX_C_TC1_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_C,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX D TC2",
|
|
.domains = ICL_AUX_D_TC2_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_D,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX E TC3",
|
|
.domains = ICL_AUX_E_TC3_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_E,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX F TC4",
|
|
.domains = ICL_AUX_F_TC4_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_F,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX C TBT1",
|
|
.domains = ICL_AUX_C_TBT1_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT1,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX D TBT2",
|
|
.domains = ICL_AUX_D_TBT2_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT2,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX E TBT3",
|
|
.domains = ICL_AUX_E_TBT3_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT3,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX F TBT4",
|
|
.domains = ICL_AUX_F_TBT4_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_TBT4,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 4",
|
|
.domains = ICL_PW_4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_4,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_C),
|
|
},
|
|
},
|
|
};
|
|
|
|
static void
|
|
tgl_tc_cold_request(struct drm_i915_private *i915, bool block)
|
|
{
|
|
u8 tries = 0;
|
|
int ret;
|
|
|
|
while (1) {
|
|
u32 low_val;
|
|
u32 high_val = 0;
|
|
|
|
if (block)
|
|
low_val = TGL_PCODE_EXIT_TCCOLD_DATA_L_BLOCK_REQ;
|
|
else
|
|
low_val = TGL_PCODE_EXIT_TCCOLD_DATA_L_UNBLOCK_REQ;
|
|
|
|
/*
|
|
* Spec states that we should timeout the request after 200us
|
|
* but the function below will timeout after 500us
|
|
*/
|
|
ret = sandybridge_pcode_read(i915, TGL_PCODE_TCCOLD, &low_val,
|
|
&high_val);
|
|
if (ret == 0) {
|
|
if (block &&
|
|
(low_val & TGL_PCODE_EXIT_TCCOLD_DATA_L_EXIT_FAILED))
|
|
ret = -EIO;
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (++tries == 3)
|
|
break;
|
|
|
|
msleep(1);
|
|
}
|
|
|
|
if (ret)
|
|
drm_err(&i915->drm, "TC cold %sblock failed\n",
|
|
block ? "" : "un");
|
|
else
|
|
drm_dbg_kms(&i915->drm, "TC cold %sblock succeeded\n",
|
|
block ? "" : "un");
|
|
}
|
|
|
|
static void
|
|
tgl_tc_cold_off_power_well_enable(struct drm_i915_private *i915,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
tgl_tc_cold_request(i915, true);
|
|
}
|
|
|
|
static void
|
|
tgl_tc_cold_off_power_well_disable(struct drm_i915_private *i915,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
tgl_tc_cold_request(i915, false);
|
|
}
|
|
|
|
static void
|
|
tgl_tc_cold_off_power_well_sync_hw(struct drm_i915_private *i915,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
if (power_well->count > 0)
|
|
tgl_tc_cold_off_power_well_enable(i915, power_well);
|
|
else
|
|
tgl_tc_cold_off_power_well_disable(i915, power_well);
|
|
}
|
|
|
|
static bool
|
|
tgl_tc_cold_off_power_well_is_enabled(struct drm_i915_private *dev_priv,
|
|
struct i915_power_well *power_well)
|
|
{
|
|
/*
|
|
* Not the correctly implementation but there is no way to just read it
|
|
* from PCODE, so returning count to avoid state mismatch errors
|
|
*/
|
|
return power_well->count;
|
|
}
|
|
|
|
static const struct i915_power_well_ops tgl_tc_cold_off_ops = {
|
|
.sync_hw = tgl_tc_cold_off_power_well_sync_hw,
|
|
.enable = tgl_tc_cold_off_power_well_enable,
|
|
.disable = tgl_tc_cold_off_power_well_disable,
|
|
.is_enabled = tgl_tc_cold_off_power_well_is_enabled,
|
|
};
|
|
|
|
static const struct i915_power_well_desc tgl_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = TGL_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = TGL_PW_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_2,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 3",
|
|
.domains = TGL_PW_3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = ICL_DISP_PW_3,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_3,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A IO",
|
|
.domains = ICL_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI B IO",
|
|
.domains = ICL_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI C IO",
|
|
.domains = ICL_DDI_IO_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_C,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC1",
|
|
.domains = TGL_DDI_IO_TC1_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC1,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC2",
|
|
.domains = TGL_DDI_IO_TC2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC2,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC3",
|
|
.domains = TGL_DDI_IO_TC3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC3,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC4",
|
|
.domains = TGL_DDI_IO_TC4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC4,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC5",
|
|
.domains = TGL_DDI_IO_TC5_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC5,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC6",
|
|
.domains = TGL_DDI_IO_TC6_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC6,
|
|
},
|
|
},
|
|
{
|
|
.name = "TC cold off",
|
|
.domains = TGL_TC_COLD_OFF_POWER_DOMAINS,
|
|
.ops = &tgl_tc_cold_off_ops,
|
|
.id = TGL_DISP_PW_TC_COLD_OFF,
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = TGL_AUX_A_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = TGL_AUX_B_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX C",
|
|
.domains = TGL_AUX_C_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_C,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC1",
|
|
.domains = TGL_AUX_IO_USBC1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC1,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC2",
|
|
.domains = TGL_AUX_IO_USBC2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC2,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC3",
|
|
.domains = TGL_AUX_IO_USBC3_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC3,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC4",
|
|
.domains = TGL_AUX_IO_USBC4_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC4,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC5",
|
|
.domains = TGL_AUX_IO_USBC5_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC5,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC6",
|
|
.domains = TGL_AUX_IO_USBC6_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC6,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT1",
|
|
.domains = TGL_AUX_IO_TBT1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT1,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT2",
|
|
.domains = TGL_AUX_IO_TBT2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT2,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT3",
|
|
.domains = TGL_AUX_IO_TBT3_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT3,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT4",
|
|
.domains = TGL_AUX_IO_TBT4_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT4,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT5",
|
|
.domains = TGL_AUX_IO_TBT5_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT5,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT6",
|
|
.domains = TGL_AUX_IO_TBT6_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT6,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 4",
|
|
.domains = TGL_PW_4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_4,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_C),
|
|
}
|
|
},
|
|
{
|
|
.name = "power well 5",
|
|
.domains = TGL_PW_5_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_PW_5,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_D),
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc rkl_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = RKL_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 3",
|
|
.domains = RKL_PW_3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = ICL_DISP_PW_3,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_3,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 4",
|
|
.domains = RKL_PW_4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_4,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_C),
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI A IO",
|
|
.domains = ICL_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI B IO",
|
|
.domains = ICL_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC1",
|
|
.domains = TGL_DDI_IO_TC1_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC1,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC2",
|
|
.domains = TGL_DDI_IO_TC2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC2,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = ICL_AUX_A_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = ICL_AUX_B_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC1",
|
|
.domains = TGL_AUX_IO_USBC1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC1,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC2",
|
|
.domains = TGL_AUX_IO_USBC2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC2,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc dg1_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = DG1_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = DG1_PW_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_2,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 3",
|
|
.domains = DG1_PW_3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = ICL_DISP_PW_3,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_3,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B),
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A IO",
|
|
.domains = ICL_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI B IO",
|
|
.domains = ICL_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC1",
|
|
.domains = TGL_DDI_IO_TC1_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC1,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI IO TC2",
|
|
.domains = TGL_DDI_IO_TC2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC2,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = TGL_AUX_A_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = TGL_AUX_B_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC1",
|
|
.domains = TGL_AUX_IO_USBC1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC1,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC2",
|
|
.domains = TGL_AUX_IO_USBC2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC2,
|
|
.hsw.is_tc_tbt = false,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well 4",
|
|
.domains = TGL_PW_4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_4,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_C),
|
|
}
|
|
},
|
|
{
|
|
.name = "power well 5",
|
|
.domains = TGL_PW_5_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_PW_5,
|
|
.hsw.has_fuses = true,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_D),
|
|
},
|
|
},
|
|
};
|
|
|
|
static const struct i915_power_well_desc xelpd_power_wells[] = {
|
|
{
|
|
.name = "always-on",
|
|
.always_on = true,
|
|
.domains = POWER_DOMAIN_MASK,
|
|
.ops = &i9xx_always_on_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
},
|
|
{
|
|
.name = "power well 1",
|
|
/* Handled by the DMC firmware */
|
|
.always_on = true,
|
|
.domains = 0,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_1,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_1,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DC off",
|
|
.domains = XELPD_DISPLAY_DC_OFF_POWER_DOMAINS,
|
|
.ops = &gen9_dc_off_power_well_ops,
|
|
.id = SKL_DISP_DC_OFF,
|
|
},
|
|
{
|
|
.name = "power well 2",
|
|
.domains = XELPD_PW_2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = SKL_DISP_PW_2,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_PW_2,
|
|
.hsw.has_vga = true,
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well A",
|
|
.domains = XELPD_PW_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_PW_A,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_A),
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well B",
|
|
.domains = XELPD_PW_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_PW_B,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_B),
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well C",
|
|
.domains = XELPD_PW_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_PW_C,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_C),
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "power well D",
|
|
.domains = XELPD_PW_D_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &hsw_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_PW_D,
|
|
.hsw.irq_pipe_mask = BIT(PIPE_D),
|
|
.hsw.has_fuses = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "DDI A IO",
|
|
.domains = ICL_DDI_IO_A_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_A,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI B IO",
|
|
.domains = ICL_DDI_IO_B_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_B,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI C IO",
|
|
.domains = ICL_DDI_IO_C_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_DDI_C,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO D_XELPD",
|
|
.domains = XELPD_DDI_IO_D_XELPD_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_DDI_D,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO E_XELPD",
|
|
.domains = XELPD_DDI_IO_E_XELPD_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_DDI_E,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC1",
|
|
.domains = XELPD_DDI_IO_TC1_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC1,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC2",
|
|
.domains = XELPD_DDI_IO_TC2_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC2,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC3",
|
|
.domains = XELPD_DDI_IO_TC3_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC3,
|
|
}
|
|
},
|
|
{
|
|
.name = "DDI IO TC4",
|
|
.domains = XELPD_DDI_IO_TC4_POWER_DOMAINS,
|
|
.ops = &hsw_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_ddi_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_DDI_TC4,
|
|
}
|
|
},
|
|
{
|
|
.name = "AUX A",
|
|
.domains = ICL_AUX_A_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_A,
|
|
.hsw.fixed_enable_delay = 600,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX B",
|
|
.domains = ICL_AUX_B_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_B,
|
|
.hsw.fixed_enable_delay = 600,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX C",
|
|
.domains = TGL_AUX_C_IO_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = ICL_PW_CTL_IDX_AUX_C,
|
|
.hsw.fixed_enable_delay = 600,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX D_XELPD",
|
|
.domains = XELPD_AUX_IO_D_XELPD_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_AUX_D,
|
|
.hsw.fixed_enable_delay = 600,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX E_XELPD",
|
|
.domains = XELPD_AUX_IO_E_XELPD_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = XELPD_PW_CTL_IDX_AUX_E,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC1",
|
|
.domains = XELPD_AUX_IO_USBC1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC1,
|
|
.hsw.fixed_enable_delay = 600,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC2",
|
|
.domains = XELPD_AUX_IO_USBC2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC2,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC3",
|
|
.domains = XELPD_AUX_IO_USBC3_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC3,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX USBC4",
|
|
.domains = XELPD_AUX_IO_USBC4_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TC4,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT1",
|
|
.domains = XELPD_AUX_IO_TBT1_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT1,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT2",
|
|
.domains = XELPD_AUX_IO_TBT2_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT2,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT3",
|
|
.domains = XELPD_AUX_IO_TBT3_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT3,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
{
|
|
.name = "AUX TBT4",
|
|
.domains = XELPD_AUX_IO_TBT4_POWER_DOMAINS,
|
|
.ops = &icl_aux_power_well_ops,
|
|
.id = DISP_PW_ID_NONE,
|
|
{
|
|
.hsw.regs = &icl_aux_power_well_regs,
|
|
.hsw.idx = TGL_PW_CTL_IDX_AUX_TBT4,
|
|
.hsw.is_tc_tbt = true,
|
|
},
|
|
},
|
|
};
|
|
|
|
static int
|
|
sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv,
|
|
int disable_power_well)
|
|
{
|
|
if (disable_power_well >= 0)
|
|
return !!disable_power_well;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static u32 get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
|
|
int enable_dc)
|
|
{
|
|
u32 mask;
|
|
int requested_dc;
|
|
int max_dc;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return 0;
|
|
|
|
if (IS_DG1(dev_priv))
|
|
max_dc = 3;
|
|
else if (DISPLAY_VER(dev_priv) >= 12)
|
|
max_dc = 4;
|
|
else if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv))
|
|
max_dc = 1;
|
|
else if (DISPLAY_VER(dev_priv) >= 9)
|
|
max_dc = 2;
|
|
else
|
|
max_dc = 0;
|
|
|
|
/*
|
|
* DC9 has a separate HW flow from the rest of the DC states,
|
|
* not depending on the DMC firmware. It's needed by system
|
|
* suspend/resume, so allow it unconditionally.
|
|
*/
|
|
mask = IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv) ||
|
|
DISPLAY_VER(dev_priv) >= 11 ?
|
|
DC_STATE_EN_DC9 : 0;
|
|
|
|
if (!dev_priv->params.disable_power_well)
|
|
max_dc = 0;
|
|
|
|
if (enable_dc >= 0 && enable_dc <= max_dc) {
|
|
requested_dc = enable_dc;
|
|
} else if (enable_dc == -1) {
|
|
requested_dc = max_dc;
|
|
} else if (enable_dc > max_dc && enable_dc <= 4) {
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Adjusting requested max DC state (%d->%d)\n",
|
|
enable_dc, max_dc);
|
|
requested_dc = max_dc;
|
|
} else {
|
|
drm_err(&dev_priv->drm,
|
|
"Unexpected value for enable_dc (%d)\n", enable_dc);
|
|
requested_dc = max_dc;
|
|
}
|
|
|
|
switch (requested_dc) {
|
|
case 4:
|
|
mask |= DC_STATE_EN_DC3CO | DC_STATE_EN_UPTO_DC6;
|
|
break;
|
|
case 3:
|
|
mask |= DC_STATE_EN_DC3CO | DC_STATE_EN_UPTO_DC5;
|
|
break;
|
|
case 2:
|
|
mask |= DC_STATE_EN_UPTO_DC6;
|
|
break;
|
|
case 1:
|
|
mask |= DC_STATE_EN_UPTO_DC5;
|
|
break;
|
|
}
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Allowed DC state mask %02x\n", mask);
|
|
|
|
return mask;
|
|
}
|
|
|
|
static int
|
|
__set_power_wells(struct i915_power_domains *power_domains,
|
|
const struct i915_power_well_desc *power_well_descs,
|
|
int power_well_descs_sz, u64 skip_mask)
|
|
{
|
|
struct drm_i915_private *i915 = container_of(power_domains,
|
|
struct drm_i915_private,
|
|
power_domains);
|
|
u64 power_well_ids = 0;
|
|
int power_well_count = 0;
|
|
int i, plt_idx = 0;
|
|
|
|
for (i = 0; i < power_well_descs_sz; i++)
|
|
if (!(BIT_ULL(power_well_descs[i].id) & skip_mask))
|
|
power_well_count++;
|
|
|
|
power_domains->power_well_count = power_well_count;
|
|
power_domains->power_wells =
|
|
kcalloc(power_well_count,
|
|
sizeof(*power_domains->power_wells),
|
|
GFP_KERNEL);
|
|
if (!power_domains->power_wells)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < power_well_descs_sz; i++) {
|
|
enum i915_power_well_id id = power_well_descs[i].id;
|
|
|
|
if (BIT_ULL(id) & skip_mask)
|
|
continue;
|
|
|
|
power_domains->power_wells[plt_idx++].desc =
|
|
&power_well_descs[i];
|
|
|
|
if (id == DISP_PW_ID_NONE)
|
|
continue;
|
|
|
|
drm_WARN_ON(&i915->drm, id >= sizeof(power_well_ids) * 8);
|
|
drm_WARN_ON(&i915->drm, power_well_ids & BIT_ULL(id));
|
|
power_well_ids |= BIT_ULL(id);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define set_power_wells_mask(power_domains, __power_well_descs, skip_mask) \
|
|
__set_power_wells(power_domains, __power_well_descs, \
|
|
ARRAY_SIZE(__power_well_descs), skip_mask)
|
|
|
|
#define set_power_wells(power_domains, __power_well_descs) \
|
|
set_power_wells_mask(power_domains, __power_well_descs, 0)
|
|
|
|
/**
|
|
* intel_power_domains_init - initializes the power domain structures
|
|
* @dev_priv: i915 device instance
|
|
*
|
|
* Initializes the power domain structures for @dev_priv depending upon the
|
|
* supported platform.
|
|
*/
|
|
int intel_power_domains_init(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
int err;
|
|
|
|
dev_priv->params.disable_power_well =
|
|
sanitize_disable_power_well_option(dev_priv,
|
|
dev_priv->params.disable_power_well);
|
|
dev_priv->dmc.allowed_dc_mask =
|
|
get_allowed_dc_mask(dev_priv, dev_priv->params.enable_dc);
|
|
|
|
dev_priv->dmc.target_dc_state =
|
|
sanitize_target_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
|
|
|
|
BUILD_BUG_ON(POWER_DOMAIN_NUM > 64);
|
|
|
|
mutex_init(&power_domains->lock);
|
|
|
|
INIT_DELAYED_WORK(&power_domains->async_put_work,
|
|
intel_display_power_put_async_work);
|
|
|
|
/*
|
|
* The enabling order will be from lower to higher indexed wells,
|
|
* the disabling order is reversed.
|
|
*/
|
|
if (!HAS_DISPLAY(dev_priv)) {
|
|
power_domains->power_well_count = 0;
|
|
err = 0;
|
|
} else if (DISPLAY_VER(dev_priv) >= 13) {
|
|
err = set_power_wells(power_domains, xelpd_power_wells);
|
|
} else if (IS_DG1(dev_priv)) {
|
|
err = set_power_wells(power_domains, dg1_power_wells);
|
|
} else if (IS_ALDERLAKE_S(dev_priv)) {
|
|
err = set_power_wells_mask(power_domains, tgl_power_wells,
|
|
BIT_ULL(TGL_DISP_PW_TC_COLD_OFF));
|
|
} else if (IS_ROCKETLAKE(dev_priv)) {
|
|
err = set_power_wells(power_domains, rkl_power_wells);
|
|
} else if (DISPLAY_VER(dev_priv) == 12) {
|
|
err = set_power_wells(power_domains, tgl_power_wells);
|
|
} else if (DISPLAY_VER(dev_priv) == 11) {
|
|
err = set_power_wells(power_domains, icl_power_wells);
|
|
} else if (IS_GEMINILAKE(dev_priv)) {
|
|
err = set_power_wells(power_domains, glk_power_wells);
|
|
} else if (IS_BROXTON(dev_priv)) {
|
|
err = set_power_wells(power_domains, bxt_power_wells);
|
|
} else if (DISPLAY_VER(dev_priv) == 9) {
|
|
err = set_power_wells(power_domains, skl_power_wells);
|
|
} else if (IS_CHERRYVIEW(dev_priv)) {
|
|
err = set_power_wells(power_domains, chv_power_wells);
|
|
} else if (IS_BROADWELL(dev_priv)) {
|
|
err = set_power_wells(power_domains, bdw_power_wells);
|
|
} else if (IS_HASWELL(dev_priv)) {
|
|
err = set_power_wells(power_domains, hsw_power_wells);
|
|
} else if (IS_VALLEYVIEW(dev_priv)) {
|
|
err = set_power_wells(power_domains, vlv_power_wells);
|
|
} else if (IS_I830(dev_priv)) {
|
|
err = set_power_wells(power_domains, i830_power_wells);
|
|
} else {
|
|
err = set_power_wells(power_domains, i9xx_always_on_power_well);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_cleanup - clean up power domains resources
|
|
* @dev_priv: i915 device instance
|
|
*
|
|
* Release any resources acquired by intel_power_domains_init()
|
|
*/
|
|
void intel_power_domains_cleanup(struct drm_i915_private *dev_priv)
|
|
{
|
|
kfree(dev_priv->power_domains.power_wells);
|
|
}
|
|
|
|
static void intel_power_domains_sync_hw(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *power_well;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
for_each_power_well(dev_priv, power_well) {
|
|
power_well->desc->ops->sync_hw(dev_priv, power_well);
|
|
power_well->hw_enabled =
|
|
power_well->desc->ops->is_enabled(dev_priv, power_well);
|
|
}
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
static void gen9_dbuf_slice_set(struct drm_i915_private *dev_priv,
|
|
enum dbuf_slice slice, bool enable)
|
|
{
|
|
i915_reg_t reg = DBUF_CTL_S(slice);
|
|
bool state;
|
|
|
|
intel_de_rmw(dev_priv, reg, DBUF_POWER_REQUEST,
|
|
enable ? DBUF_POWER_REQUEST : 0);
|
|
intel_de_posting_read(dev_priv, reg);
|
|
udelay(10);
|
|
|
|
state = intel_de_read(dev_priv, reg) & DBUF_POWER_STATE;
|
|
drm_WARN(&dev_priv->drm, enable != state,
|
|
"DBuf slice %d power %s timeout!\n",
|
|
slice, enabledisable(enable));
|
|
}
|
|
|
|
void gen9_dbuf_slices_update(struct drm_i915_private *dev_priv,
|
|
u8 req_slices)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
u8 slice_mask = INTEL_INFO(dev_priv)->dbuf.slice_mask;
|
|
enum dbuf_slice slice;
|
|
|
|
drm_WARN(&dev_priv->drm, req_slices & ~slice_mask,
|
|
"Invalid set of dbuf slices (0x%x) requested (total dbuf slices 0x%x)\n",
|
|
req_slices, slice_mask);
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Updating dbuf slices to 0x%x\n",
|
|
req_slices);
|
|
|
|
/*
|
|
* Might be running this in parallel to gen9_dc_off_power_well_enable
|
|
* being called from intel_dp_detect for instance,
|
|
* which causes assertion triggered by race condition,
|
|
* as gen9_assert_dbuf_enabled might preempt this when registers
|
|
* were already updated, while dev_priv was not.
|
|
*/
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
for_each_dbuf_slice(dev_priv, slice)
|
|
gen9_dbuf_slice_set(dev_priv, slice, req_slices & BIT(slice));
|
|
|
|
dev_priv->dbuf.enabled_slices = req_slices;
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
static void gen9_dbuf_enable(struct drm_i915_private *dev_priv)
|
|
{
|
|
dev_priv->dbuf.enabled_slices =
|
|
intel_enabled_dbuf_slices_mask(dev_priv);
|
|
|
|
/*
|
|
* Just power up at least 1 slice, we will
|
|
* figure out later which slices we have and what we need.
|
|
*/
|
|
gen9_dbuf_slices_update(dev_priv, BIT(DBUF_S1) |
|
|
dev_priv->dbuf.enabled_slices);
|
|
}
|
|
|
|
static void gen9_dbuf_disable(struct drm_i915_private *dev_priv)
|
|
{
|
|
gen9_dbuf_slices_update(dev_priv, 0);
|
|
}
|
|
|
|
static void gen12_dbuf_slices_config(struct drm_i915_private *dev_priv)
|
|
{
|
|
enum dbuf_slice slice;
|
|
|
|
if (IS_ALDERLAKE_P(dev_priv))
|
|
return;
|
|
|
|
for_each_dbuf_slice(dev_priv, slice)
|
|
intel_de_rmw(dev_priv, DBUF_CTL_S(slice),
|
|
DBUF_TRACKER_STATE_SERVICE_MASK,
|
|
DBUF_TRACKER_STATE_SERVICE(8));
|
|
}
|
|
|
|
static void icl_mbus_init(struct drm_i915_private *dev_priv)
|
|
{
|
|
unsigned long abox_regs = INTEL_INFO(dev_priv)->abox_mask;
|
|
u32 mask, val, i;
|
|
|
|
if (IS_ALDERLAKE_P(dev_priv))
|
|
return;
|
|
|
|
mask = MBUS_ABOX_BT_CREDIT_POOL1_MASK |
|
|
MBUS_ABOX_BT_CREDIT_POOL2_MASK |
|
|
MBUS_ABOX_B_CREDIT_MASK |
|
|
MBUS_ABOX_BW_CREDIT_MASK;
|
|
val = MBUS_ABOX_BT_CREDIT_POOL1(16) |
|
|
MBUS_ABOX_BT_CREDIT_POOL2(16) |
|
|
MBUS_ABOX_B_CREDIT(1) |
|
|
MBUS_ABOX_BW_CREDIT(1);
|
|
|
|
/*
|
|
* gen12 platforms that use abox1 and abox2 for pixel data reads still
|
|
* expect us to program the abox_ctl0 register as well, even though
|
|
* we don't have to program other instance-0 registers like BW_BUDDY.
|
|
*/
|
|
if (DISPLAY_VER(dev_priv) == 12)
|
|
abox_regs |= BIT(0);
|
|
|
|
for_each_set_bit(i, &abox_regs, sizeof(abox_regs))
|
|
intel_de_rmw(dev_priv, MBUS_ABOX_CTL(i), mask, val);
|
|
}
|
|
|
|
static void hsw_assert_cdclk(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
|
|
/*
|
|
* The LCPLL register should be turned on by the BIOS. For now
|
|
* let's just check its state and print errors in case
|
|
* something is wrong. Don't even try to turn it on.
|
|
*/
|
|
|
|
if (val & LCPLL_CD_SOURCE_FCLK)
|
|
drm_err(&dev_priv->drm, "CDCLK source is not LCPLL\n");
|
|
|
|
if (val & LCPLL_PLL_DISABLE)
|
|
drm_err(&dev_priv->drm, "LCPLL is disabled\n");
|
|
|
|
if ((val & LCPLL_REF_MASK) != LCPLL_REF_NON_SSC)
|
|
drm_err(&dev_priv->drm, "LCPLL not using non-SSC reference\n");
|
|
}
|
|
|
|
static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct drm_device *dev = &dev_priv->drm;
|
|
struct intel_crtc *crtc;
|
|
|
|
for_each_intel_crtc(dev, crtc)
|
|
I915_STATE_WARN(crtc->active, "CRTC for pipe %c enabled\n",
|
|
pipe_name(crtc->pipe));
|
|
|
|
I915_STATE_WARN(intel_de_read(dev_priv, HSW_PWR_WELL_CTL2),
|
|
"Display power well on\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, SPLL_CTL) & SPLL_PLL_ENABLE,
|
|
"SPLL enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, WRPLL_CTL(0)) & WRPLL_PLL_ENABLE,
|
|
"WRPLL1 enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, WRPLL_CTL(1)) & WRPLL_PLL_ENABLE,
|
|
"WRPLL2 enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, PP_STATUS(0)) & PP_ON,
|
|
"Panel power on\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, BLC_PWM_CPU_CTL2) & BLM_PWM_ENABLE,
|
|
"CPU PWM1 enabled\n");
|
|
if (IS_HASWELL(dev_priv))
|
|
I915_STATE_WARN(intel_de_read(dev_priv, HSW_BLC_PWM2_CTL) & BLM_PWM_ENABLE,
|
|
"CPU PWM2 enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, BLC_PWM_PCH_CTL1) & BLM_PCH_PWM_ENABLE,
|
|
"PCH PWM1 enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, UTIL_PIN_CTL) & UTIL_PIN_ENABLE,
|
|
"Utility pin enabled\n");
|
|
I915_STATE_WARN(intel_de_read(dev_priv, PCH_GTC_CTL) & PCH_GTC_ENABLE,
|
|
"PCH GTC enabled\n");
|
|
|
|
/*
|
|
* In theory we can still leave IRQs enabled, as long as only the HPD
|
|
* interrupts remain enabled. We used to check for that, but since it's
|
|
* gen-specific and since we only disable LCPLL after we fully disable
|
|
* the interrupts, the check below should be enough.
|
|
*/
|
|
I915_STATE_WARN(intel_irqs_enabled(dev_priv), "IRQs enabled\n");
|
|
}
|
|
|
|
static u32 hsw_read_dcomp(struct drm_i915_private *dev_priv)
|
|
{
|
|
if (IS_HASWELL(dev_priv))
|
|
return intel_de_read(dev_priv, D_COMP_HSW);
|
|
else
|
|
return intel_de_read(dev_priv, D_COMP_BDW);
|
|
}
|
|
|
|
static void hsw_write_dcomp(struct drm_i915_private *dev_priv, u32 val)
|
|
{
|
|
if (IS_HASWELL(dev_priv)) {
|
|
if (sandybridge_pcode_write(dev_priv,
|
|
GEN6_PCODE_WRITE_D_COMP, val))
|
|
drm_dbg_kms(&dev_priv->drm,
|
|
"Failed to write to D_COMP\n");
|
|
} else {
|
|
intel_de_write(dev_priv, D_COMP_BDW, val);
|
|
intel_de_posting_read(dev_priv, D_COMP_BDW);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function implements pieces of two sequences from BSpec:
|
|
* - Sequence for display software to disable LCPLL
|
|
* - Sequence for display software to allow package C8+
|
|
* The steps implemented here are just the steps that actually touch the LCPLL
|
|
* register. Callers should take care of disabling all the display engine
|
|
* functions, doing the mode unset, fixing interrupts, etc.
|
|
*/
|
|
static void hsw_disable_lcpll(struct drm_i915_private *dev_priv,
|
|
bool switch_to_fclk, bool allow_power_down)
|
|
{
|
|
u32 val;
|
|
|
|
assert_can_disable_lcpll(dev_priv);
|
|
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
|
|
if (switch_to_fclk) {
|
|
val |= LCPLL_CD_SOURCE_FCLK;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
|
|
if (wait_for_us(intel_de_read(dev_priv, LCPLL_CTL) &
|
|
LCPLL_CD_SOURCE_FCLK_DONE, 1))
|
|
drm_err(&dev_priv->drm, "Switching to FCLK failed\n");
|
|
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
}
|
|
|
|
val |= LCPLL_PLL_DISABLE;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
intel_de_posting_read(dev_priv, LCPLL_CTL);
|
|
|
|
if (intel_de_wait_for_clear(dev_priv, LCPLL_CTL, LCPLL_PLL_LOCK, 1))
|
|
drm_err(&dev_priv->drm, "LCPLL still locked\n");
|
|
|
|
val = hsw_read_dcomp(dev_priv);
|
|
val |= D_COMP_COMP_DISABLE;
|
|
hsw_write_dcomp(dev_priv, val);
|
|
ndelay(100);
|
|
|
|
if (wait_for((hsw_read_dcomp(dev_priv) &
|
|
D_COMP_RCOMP_IN_PROGRESS) == 0, 1))
|
|
drm_err(&dev_priv->drm, "D_COMP RCOMP still in progress\n");
|
|
|
|
if (allow_power_down) {
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
val |= LCPLL_POWER_DOWN_ALLOW;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
intel_de_posting_read(dev_priv, LCPLL_CTL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Fully restores LCPLL, disallowing power down and switching back to LCPLL
|
|
* source.
|
|
*/
|
|
static void hsw_restore_lcpll(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
|
|
if ((val & (LCPLL_PLL_LOCK | LCPLL_PLL_DISABLE | LCPLL_CD_SOURCE_FCLK |
|
|
LCPLL_POWER_DOWN_ALLOW)) == LCPLL_PLL_LOCK)
|
|
return;
|
|
|
|
/*
|
|
* Make sure we're not on PC8 state before disabling PC8, otherwise
|
|
* we'll hang the machine. To prevent PC8 state, just enable force_wake.
|
|
*/
|
|
intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
|
|
|
|
if (val & LCPLL_POWER_DOWN_ALLOW) {
|
|
val &= ~LCPLL_POWER_DOWN_ALLOW;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
intel_de_posting_read(dev_priv, LCPLL_CTL);
|
|
}
|
|
|
|
val = hsw_read_dcomp(dev_priv);
|
|
val |= D_COMP_COMP_FORCE;
|
|
val &= ~D_COMP_COMP_DISABLE;
|
|
hsw_write_dcomp(dev_priv, val);
|
|
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
val &= ~LCPLL_PLL_DISABLE;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
|
|
if (intel_de_wait_for_set(dev_priv, LCPLL_CTL, LCPLL_PLL_LOCK, 5))
|
|
drm_err(&dev_priv->drm, "LCPLL not locked yet\n");
|
|
|
|
if (val & LCPLL_CD_SOURCE_FCLK) {
|
|
val = intel_de_read(dev_priv, LCPLL_CTL);
|
|
val &= ~LCPLL_CD_SOURCE_FCLK;
|
|
intel_de_write(dev_priv, LCPLL_CTL, val);
|
|
|
|
if (wait_for_us((intel_de_read(dev_priv, LCPLL_CTL) &
|
|
LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1))
|
|
drm_err(&dev_priv->drm,
|
|
"Switching back to LCPLL failed\n");
|
|
}
|
|
|
|
intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
|
|
|
|
intel_update_cdclk(dev_priv);
|
|
intel_dump_cdclk_config(&dev_priv->cdclk.hw, "Current CDCLK");
|
|
}
|
|
|
|
/*
|
|
* Package states C8 and deeper are really deep PC states that can only be
|
|
* reached when all the devices on the system allow it, so even if the graphics
|
|
* device allows PC8+, it doesn't mean the system will actually get to these
|
|
* states. Our driver only allows PC8+ when going into runtime PM.
|
|
*
|
|
* The requirements for PC8+ are that all the outputs are disabled, the power
|
|
* well is disabled and most interrupts are disabled, and these are also
|
|
* requirements for runtime PM. When these conditions are met, we manually do
|
|
* the other conditions: disable the interrupts, clocks and switch LCPLL refclk
|
|
* to Fclk. If we're in PC8+ and we get an non-hotplug interrupt, we can hard
|
|
* hang the machine.
|
|
*
|
|
* When we really reach PC8 or deeper states (not just when we allow it) we lose
|
|
* the state of some registers, so when we come back from PC8+ we need to
|
|
* restore this state. We don't get into PC8+ if we're not in RC6, so we don't
|
|
* need to take care of the registers kept by RC6. Notice that this happens even
|
|
* if we don't put the device in PCI D3 state (which is what currently happens
|
|
* because of the runtime PM support).
|
|
*
|
|
* For more, read "Display Sequences for Package C8" on the hardware
|
|
* documentation.
|
|
*/
|
|
static void hsw_enable_pc8(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Enabling package C8+\n");
|
|
|
|
if (HAS_PCH_LPT_LP(dev_priv)) {
|
|
val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D);
|
|
val &= ~PCH_LP_PARTITION_LEVEL_DISABLE;
|
|
intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val);
|
|
}
|
|
|
|
lpt_disable_clkout_dp(dev_priv);
|
|
hsw_disable_lcpll(dev_priv, true, true);
|
|
}
|
|
|
|
static void hsw_disable_pc8(struct drm_i915_private *dev_priv)
|
|
{
|
|
u32 val;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Disabling package C8+\n");
|
|
|
|
hsw_restore_lcpll(dev_priv);
|
|
intel_init_pch_refclk(dev_priv);
|
|
|
|
if (HAS_PCH_LPT_LP(dev_priv)) {
|
|
val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D);
|
|
val |= PCH_LP_PARTITION_LEVEL_DISABLE;
|
|
intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val);
|
|
}
|
|
}
|
|
|
|
static void intel_pch_reset_handshake(struct drm_i915_private *dev_priv,
|
|
bool enable)
|
|
{
|
|
i915_reg_t reg;
|
|
u32 reset_bits, val;
|
|
|
|
if (IS_IVYBRIDGE(dev_priv)) {
|
|
reg = GEN7_MSG_CTL;
|
|
reset_bits = WAIT_FOR_PCH_FLR_ACK | WAIT_FOR_PCH_RESET_ACK;
|
|
} else {
|
|
reg = HSW_NDE_RSTWRN_OPT;
|
|
reset_bits = RESET_PCH_HANDSHAKE_ENABLE;
|
|
}
|
|
|
|
val = intel_de_read(dev_priv, reg);
|
|
|
|
if (enable)
|
|
val |= reset_bits;
|
|
else
|
|
val &= ~reset_bits;
|
|
|
|
intel_de_write(dev_priv, reg, val);
|
|
}
|
|
|
|
static void skl_display_core_init(struct drm_i915_private *dev_priv,
|
|
bool resume)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
|
|
/* enable PCH reset handshake */
|
|
intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
/* enable PG1 and Misc I/O */
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_enable(dev_priv, well);
|
|
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_MISC_IO);
|
|
intel_power_well_enable(dev_priv, well);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
intel_cdclk_init_hw(dev_priv);
|
|
|
|
gen9_dbuf_enable(dev_priv);
|
|
|
|
if (resume && intel_dmc_has_payload(dev_priv))
|
|
intel_dmc_load_program(dev_priv);
|
|
}
|
|
|
|
static void skl_display_core_uninit(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
gen9_disable_dc_states(dev_priv);
|
|
|
|
gen9_dbuf_disable(dev_priv);
|
|
|
|
intel_cdclk_uninit_hw(dev_priv);
|
|
|
|
/* The spec doesn't call for removing the reset handshake flag */
|
|
/* disable PG1 and Misc I/O */
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
/*
|
|
* BSpec says to keep the MISC IO power well enabled here, only
|
|
* remove our request for power well 1.
|
|
* Note that even though the driver's request is removed power well 1
|
|
* may stay enabled after this due to DMC's own request on it.
|
|
*/
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_disable(dev_priv, well);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
usleep_range(10, 30); /* 10 us delay per Bspec */
|
|
}
|
|
|
|
static void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
|
|
/*
|
|
* NDE_RSTWRN_OPT RST PCH Handshake En must always be 0b on BXT
|
|
* or else the reset will hang because there is no PCH to respond.
|
|
* Move the handshake programming to initialization sequence.
|
|
* Previously was left up to BIOS.
|
|
*/
|
|
intel_pch_reset_handshake(dev_priv, false);
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
/* Enable PG1 */
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_enable(dev_priv, well);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
intel_cdclk_init_hw(dev_priv);
|
|
|
|
gen9_dbuf_enable(dev_priv);
|
|
|
|
if (resume && intel_dmc_has_payload(dev_priv))
|
|
intel_dmc_load_program(dev_priv);
|
|
}
|
|
|
|
static void bxt_display_core_uninit(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
gen9_disable_dc_states(dev_priv);
|
|
|
|
gen9_dbuf_disable(dev_priv);
|
|
|
|
intel_cdclk_uninit_hw(dev_priv);
|
|
|
|
/* The spec doesn't call for removing the reset handshake flag */
|
|
|
|
/*
|
|
* Disable PW1 (PG1).
|
|
* Note that even though the driver's request is removed power well 1
|
|
* may stay enabled after this due to DMC's own request on it.
|
|
*/
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_disable(dev_priv, well);
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
usleep_range(10, 30); /* 10 us delay per Bspec */
|
|
}
|
|
|
|
struct buddy_page_mask {
|
|
u32 page_mask;
|
|
u8 type;
|
|
u8 num_channels;
|
|
};
|
|
|
|
static const struct buddy_page_mask tgl_buddy_page_masks[] = {
|
|
{ .num_channels = 1, .type = INTEL_DRAM_DDR4, .page_mask = 0xF },
|
|
{ .num_channels = 1, .type = INTEL_DRAM_DDR5, .page_mask = 0xF },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1C },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x1C },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_DDR4, .page_mask = 0x1F },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_DDR5, .page_mask = 0x1E },
|
|
{ .num_channels = 4, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x38 },
|
|
{ .num_channels = 4, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x38 },
|
|
{}
|
|
};
|
|
|
|
static const struct buddy_page_mask wa_1409767108_buddy_page_masks[] = {
|
|
{ .num_channels = 1, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x1 },
|
|
{ .num_channels = 1, .type = INTEL_DRAM_DDR4, .page_mask = 0x1 },
|
|
{ .num_channels = 1, .type = INTEL_DRAM_DDR5, .page_mask = 0x1 },
|
|
{ .num_channels = 1, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x1 },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_LPDDR4, .page_mask = 0x3 },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_DDR4, .page_mask = 0x3 },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_DDR5, .page_mask = 0x3 },
|
|
{ .num_channels = 2, .type = INTEL_DRAM_LPDDR5, .page_mask = 0x3 },
|
|
{}
|
|
};
|
|
|
|
static void tgl_bw_buddy_init(struct drm_i915_private *dev_priv)
|
|
{
|
|
enum intel_dram_type type = dev_priv->dram_info.type;
|
|
u8 num_channels = dev_priv->dram_info.num_channels;
|
|
const struct buddy_page_mask *table;
|
|
unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask;
|
|
int config, i;
|
|
|
|
/* BW_BUDDY registers are not used on dgpu's beyond DG1 */
|
|
if (IS_DGFX(dev_priv) && !IS_DG1(dev_priv))
|
|
return;
|
|
|
|
if (IS_ALDERLAKE_S(dev_priv) ||
|
|
IS_DG1_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) ||
|
|
IS_RKL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) ||
|
|
IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_C0))
|
|
/* Wa_1409767108:tgl,dg1,adl-s */
|
|
table = wa_1409767108_buddy_page_masks;
|
|
else
|
|
table = tgl_buddy_page_masks;
|
|
|
|
for (config = 0; table[config].page_mask != 0; config++)
|
|
if (table[config].num_channels == num_channels &&
|
|
table[config].type == type)
|
|
break;
|
|
|
|
if (table[config].page_mask == 0) {
|
|
drm_dbg(&dev_priv->drm,
|
|
"Unknown memory configuration; disabling address buddy logic.\n");
|
|
for_each_set_bit(i, &abox_mask, sizeof(abox_mask))
|
|
intel_de_write(dev_priv, BW_BUDDY_CTL(i),
|
|
BW_BUDDY_DISABLE);
|
|
} else {
|
|
for_each_set_bit(i, &abox_mask, sizeof(abox_mask)) {
|
|
intel_de_write(dev_priv, BW_BUDDY_PAGE_MASK(i),
|
|
table[config].page_mask);
|
|
|
|
/* Wa_22010178259:tgl,dg1,rkl,adl-s */
|
|
if (DISPLAY_VER(dev_priv) == 12)
|
|
intel_de_rmw(dev_priv, BW_BUDDY_CTL(i),
|
|
BW_BUDDY_TLB_REQ_TIMER_MASK,
|
|
BW_BUDDY_TLB_REQ_TIMER(0x8));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void icl_display_core_init(struct drm_i915_private *dev_priv,
|
|
bool resume)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
u32 val;
|
|
|
|
gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
|
|
|
|
/* Wa_14011294188:ehl,jsl,tgl,rkl,adl-s */
|
|
if (INTEL_PCH_TYPE(dev_priv) >= PCH_JSP &&
|
|
INTEL_PCH_TYPE(dev_priv) < PCH_DG1)
|
|
intel_de_rmw(dev_priv, SOUTH_DSPCLK_GATE_D, 0,
|
|
PCH_DPMGUNIT_CLOCK_GATE_DISABLE);
|
|
|
|
/* 1. Enable PCH reset handshake. */
|
|
intel_pch_reset_handshake(dev_priv, !HAS_PCH_NOP(dev_priv));
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
/* 2. Initialize all combo phys */
|
|
intel_combo_phy_init(dev_priv);
|
|
|
|
/*
|
|
* 3. Enable Power Well 1 (PG1).
|
|
* The AUX IO power wells will be enabled on demand.
|
|
*/
|
|
mutex_lock(&power_domains->lock);
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_enable(dev_priv, well);
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
/* 4. Enable CDCLK. */
|
|
intel_cdclk_init_hw(dev_priv);
|
|
|
|
if (DISPLAY_VER(dev_priv) >= 12)
|
|
gen12_dbuf_slices_config(dev_priv);
|
|
|
|
/* 5. Enable DBUF. */
|
|
gen9_dbuf_enable(dev_priv);
|
|
|
|
/* 6. Setup MBUS. */
|
|
icl_mbus_init(dev_priv);
|
|
|
|
/* 7. Program arbiter BW_BUDDY registers */
|
|
if (DISPLAY_VER(dev_priv) >= 12)
|
|
tgl_bw_buddy_init(dev_priv);
|
|
|
|
/* 8. Ensure PHYs have completed calibration and adaptation */
|
|
if (IS_DG2(dev_priv))
|
|
intel_snps_phy_wait_for_calibration(dev_priv);
|
|
|
|
if (resume && intel_dmc_has_payload(dev_priv))
|
|
intel_dmc_load_program(dev_priv);
|
|
|
|
/* Wa_14011508470:tgl,dg1,rkl,adl-s,adl-p */
|
|
if (DISPLAY_VER(dev_priv) >= 12) {
|
|
val = DCPR_CLEAR_MEMSTAT_DIS | DCPR_SEND_RESP_IMM |
|
|
DCPR_MASK_LPMODE | DCPR_MASK_MAXLATENCY_MEMUP_CLR;
|
|
intel_uncore_rmw(&dev_priv->uncore, GEN11_CHICKEN_DCPR_2, 0, val);
|
|
}
|
|
|
|
/* Wa_14011503030:xelpd */
|
|
if (DISPLAY_VER(dev_priv) >= 13)
|
|
intel_de_write(dev_priv, XELPD_DISPLAY_ERR_FATAL_MASK, ~0);
|
|
}
|
|
|
|
static void icl_display_core_uninit(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_domains *power_domains = &dev_priv->power_domains;
|
|
struct i915_power_well *well;
|
|
|
|
if (!HAS_DISPLAY(dev_priv))
|
|
return;
|
|
|
|
gen9_disable_dc_states(dev_priv);
|
|
|
|
/* 1. Disable all display engine functions -> aready done */
|
|
|
|
/* 2. Disable DBUF */
|
|
gen9_dbuf_disable(dev_priv);
|
|
|
|
/* 3. Disable CD clock */
|
|
intel_cdclk_uninit_hw(dev_priv);
|
|
|
|
/*
|
|
* 4. Disable Power Well 1 (PG1).
|
|
* The AUX IO power wells are toggled on demand, so they are already
|
|
* disabled at this point.
|
|
*/
|
|
mutex_lock(&power_domains->lock);
|
|
well = lookup_power_well(dev_priv, SKL_DISP_PW_1);
|
|
intel_power_well_disable(dev_priv, well);
|
|
mutex_unlock(&power_domains->lock);
|
|
|
|
/* 5. */
|
|
intel_combo_phy_uninit(dev_priv);
|
|
}
|
|
|
|
static void chv_phy_control_init(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_well *cmn_bc =
|
|
lookup_power_well(dev_priv, VLV_DISP_PW_DPIO_CMN_BC);
|
|
struct i915_power_well *cmn_d =
|
|
lookup_power_well(dev_priv, CHV_DISP_PW_DPIO_CMN_D);
|
|
|
|
/*
|
|
* DISPLAY_PHY_CONTROL can get corrupted if read. As a
|
|
* workaround never ever read DISPLAY_PHY_CONTROL, and
|
|
* instead maintain a shadow copy ourselves. Use the actual
|
|
* power well state and lane status to reconstruct the
|
|
* expected initial value.
|
|
*/
|
|
dev_priv->chv_phy_control =
|
|
PHY_LDO_SEQ_DELAY(PHY_LDO_DELAY_600NS, DPIO_PHY0) |
|
|
PHY_LDO_SEQ_DELAY(PHY_LDO_DELAY_600NS, DPIO_PHY1) |
|
|
PHY_CH_POWER_MODE(PHY_CH_DEEP_PSR, DPIO_PHY0, DPIO_CH0) |
|
|
PHY_CH_POWER_MODE(PHY_CH_DEEP_PSR, DPIO_PHY0, DPIO_CH1) |
|
|
PHY_CH_POWER_MODE(PHY_CH_DEEP_PSR, DPIO_PHY1, DPIO_CH0);
|
|
|
|
/*
|
|
* If all lanes are disabled we leave the override disabled
|
|
* with all power down bits cleared to match the state we
|
|
* would use after disabling the port. Otherwise enable the
|
|
* override and set the lane powerdown bits accding to the
|
|
* current lane status.
|
|
*/
|
|
if (cmn_bc->desc->ops->is_enabled(dev_priv, cmn_bc)) {
|
|
u32 status = intel_de_read(dev_priv, DPLL(PIPE_A));
|
|
unsigned int mask;
|
|
|
|
mask = status & DPLL_PORTB_READY_MASK;
|
|
if (mask == 0xf)
|
|
mask = 0x0;
|
|
else
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH0);
|
|
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY0, DPIO_CH0);
|
|
|
|
mask = (status & DPLL_PORTC_READY_MASK) >> 4;
|
|
if (mask == 0xf)
|
|
mask = 0x0;
|
|
else
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY0, DPIO_CH1);
|
|
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY0, DPIO_CH1);
|
|
|
|
dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY0);
|
|
|
|
dev_priv->chv_phy_assert[DPIO_PHY0] = false;
|
|
} else {
|
|
dev_priv->chv_phy_assert[DPIO_PHY0] = true;
|
|
}
|
|
|
|
if (cmn_d->desc->ops->is_enabled(dev_priv, cmn_d)) {
|
|
u32 status = intel_de_read(dev_priv, DPIO_PHY_STATUS);
|
|
unsigned int mask;
|
|
|
|
mask = status & DPLL_PORTD_READY_MASK;
|
|
|
|
if (mask == 0xf)
|
|
mask = 0x0;
|
|
else
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD_EN(DPIO_PHY1, DPIO_CH0);
|
|
|
|
dev_priv->chv_phy_control |=
|
|
PHY_CH_POWER_DOWN_OVRD(mask, DPIO_PHY1, DPIO_CH0);
|
|
|
|
dev_priv->chv_phy_control |= PHY_COM_LANE_RESET_DEASSERT(DPIO_PHY1);
|
|
|
|
dev_priv->chv_phy_assert[DPIO_PHY1] = false;
|
|
} else {
|
|
dev_priv->chv_phy_assert[DPIO_PHY1] = true;
|
|
}
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "Initial PHY_CONTROL=0x%08x\n",
|
|
dev_priv->chv_phy_control);
|
|
|
|
/* Defer application of initial phy_control to enabling the powerwell */
|
|
}
|
|
|
|
static void vlv_cmnlane_wa(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct i915_power_well *cmn =
|
|
lookup_power_well(dev_priv, VLV_DISP_PW_DPIO_CMN_BC);
|
|
struct i915_power_well *disp2d =
|
|
lookup_power_well(dev_priv, VLV_DISP_PW_DISP2D);
|
|
|
|
/* If the display might be already active skip this */
|
|
if (cmn->desc->ops->is_enabled(dev_priv, cmn) &&
|
|
disp2d->desc->ops->is_enabled(dev_priv, disp2d) &&
|
|
intel_de_read(dev_priv, DPIO_CTL) & DPIO_CMNRST)
|
|
return;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "toggling display PHY side reset\n");
|
|
|
|
/* cmnlane needs DPLL registers */
|
|
disp2d->desc->ops->enable(dev_priv, disp2d);
|
|
|
|
/*
|
|
* From VLV2A0_DP_eDP_HDMI_DPIO_driver_vbios_notes_11.docx:
|
|
* Need to assert and de-assert PHY SB reset by gating the
|
|
* common lane power, then un-gating it.
|
|
* Simply ungating isn't enough to reset the PHY enough to get
|
|
* ports and lanes running.
|
|
*/
|
|
cmn->desc->ops->disable(dev_priv, cmn);
|
|
}
|
|
|
|
static bool vlv_punit_is_power_gated(struct drm_i915_private *dev_priv, u32 reg0)
|
|
{
|
|
bool ret;
|
|
|
|
vlv_punit_get(dev_priv);
|
|
ret = (vlv_punit_read(dev_priv, reg0) & SSPM0_SSC_MASK) == SSPM0_SSC_PWR_GATE;
|
|
vlv_punit_put(dev_priv);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void assert_ved_power_gated(struct drm_i915_private *dev_priv)
|
|
{
|
|
drm_WARN(&dev_priv->drm,
|
|
!vlv_punit_is_power_gated(dev_priv, PUNIT_REG_VEDSSPM0),
|
|
"VED not power gated\n");
|
|
}
|
|
|
|
static void assert_isp_power_gated(struct drm_i915_private *dev_priv)
|
|
{
|
|
static const struct pci_device_id isp_ids[] = {
|
|
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0f38)},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x22b8)},
|
|
{}
|
|
};
|
|
|
|
drm_WARN(&dev_priv->drm, !pci_dev_present(isp_ids) &&
|
|
!vlv_punit_is_power_gated(dev_priv, PUNIT_REG_ISPSSPM0),
|
|
"ISP not power gated\n");
|
|
}
|
|
|
|
static void intel_power_domains_verify_state(struct drm_i915_private *dev_priv);
|
|
|
|
/**
|
|
* intel_power_domains_init_hw - initialize hardware power domain state
|
|
* @i915: i915 device instance
|
|
* @resume: Called from resume code paths or not
|
|
*
|
|
* This function initializes the hardware power domain state and enables all
|
|
* power wells belonging to the INIT power domain. Power wells in other
|
|
* domains (and not in the INIT domain) are referenced or disabled by
|
|
* intel_modeset_readout_hw_state(). After that the reference count of each
|
|
* power well must match its HW enabled state, see
|
|
* intel_power_domains_verify_state().
|
|
*
|
|
* It will return with power domains disabled (to be enabled later by
|
|
* intel_power_domains_enable()) and must be paired with
|
|
* intel_power_domains_driver_remove().
|
|
*/
|
|
void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
|
|
power_domains->initializing = true;
|
|
|
|
if (DISPLAY_VER(i915) >= 11) {
|
|
icl_display_core_init(i915, resume);
|
|
} else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915)) {
|
|
bxt_display_core_init(i915, resume);
|
|
} else if (DISPLAY_VER(i915) == 9) {
|
|
skl_display_core_init(i915, resume);
|
|
} else if (IS_CHERRYVIEW(i915)) {
|
|
mutex_lock(&power_domains->lock);
|
|
chv_phy_control_init(i915);
|
|
mutex_unlock(&power_domains->lock);
|
|
assert_isp_power_gated(i915);
|
|
} else if (IS_VALLEYVIEW(i915)) {
|
|
mutex_lock(&power_domains->lock);
|
|
vlv_cmnlane_wa(i915);
|
|
mutex_unlock(&power_domains->lock);
|
|
assert_ved_power_gated(i915);
|
|
assert_isp_power_gated(i915);
|
|
} else if (IS_BROADWELL(i915) || IS_HASWELL(i915)) {
|
|
hsw_assert_cdclk(i915);
|
|
intel_pch_reset_handshake(i915, !HAS_PCH_NOP(i915));
|
|
} else if (IS_IVYBRIDGE(i915)) {
|
|
intel_pch_reset_handshake(i915, !HAS_PCH_NOP(i915));
|
|
}
|
|
|
|
/*
|
|
* Keep all power wells enabled for any dependent HW access during
|
|
* initialization and to make sure we keep BIOS enabled display HW
|
|
* resources powered until display HW readout is complete. We drop
|
|
* this reference in intel_power_domains_enable().
|
|
*/
|
|
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
|
|
power_domains->init_wakeref =
|
|
intel_display_power_get(i915, POWER_DOMAIN_INIT);
|
|
|
|
/* Disable power support if the user asked so. */
|
|
if (!i915->params.disable_power_well) {
|
|
drm_WARN_ON(&i915->drm, power_domains->disable_wakeref);
|
|
i915->power_domains.disable_wakeref = intel_display_power_get(i915,
|
|
POWER_DOMAIN_INIT);
|
|
}
|
|
intel_power_domains_sync_hw(i915);
|
|
|
|
power_domains->initializing = false;
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_driver_remove - deinitialize hw power domain state
|
|
* @i915: i915 device instance
|
|
*
|
|
* De-initializes the display power domain HW state. It also ensures that the
|
|
* device stays powered up so that the driver can be reloaded.
|
|
*
|
|
* It must be called with power domains already disabled (after a call to
|
|
* intel_power_domains_disable()) and must be paired with
|
|
* intel_power_domains_init_hw().
|
|
*/
|
|
void intel_power_domains_driver_remove(struct drm_i915_private *i915)
|
|
{
|
|
intel_wakeref_t wakeref __maybe_unused =
|
|
fetch_and_zero(&i915->power_domains.init_wakeref);
|
|
|
|
/* Remove the refcount we took to keep power well support disabled. */
|
|
if (!i915->params.disable_power_well)
|
|
intel_display_power_put(i915, POWER_DOMAIN_INIT,
|
|
fetch_and_zero(&i915->power_domains.disable_wakeref));
|
|
|
|
intel_display_power_flush_work_sync(i915);
|
|
|
|
intel_power_domains_verify_state(i915);
|
|
|
|
/* Keep the power well enabled, but cancel its rpm wakeref. */
|
|
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_enable - enable toggling of display power wells
|
|
* @i915: i915 device instance
|
|
*
|
|
* Enable the ondemand enabling/disabling of the display power wells. Note that
|
|
* power wells not belonging to POWER_DOMAIN_INIT are allowed to be toggled
|
|
* only at specific points of the display modeset sequence, thus they are not
|
|
* affected by the intel_power_domains_enable()/disable() calls. The purpose
|
|
* of these function is to keep the rest of power wells enabled until the end
|
|
* of display HW readout (which will acquire the power references reflecting
|
|
* the current HW state).
|
|
*/
|
|
void intel_power_domains_enable(struct drm_i915_private *i915)
|
|
{
|
|
intel_wakeref_t wakeref __maybe_unused =
|
|
fetch_and_zero(&i915->power_domains.init_wakeref);
|
|
|
|
intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
|
|
intel_power_domains_verify_state(i915);
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_disable - disable toggling of display power wells
|
|
* @i915: i915 device instance
|
|
*
|
|
* Disable the ondemand enabling/disabling of the display power wells. See
|
|
* intel_power_domains_enable() for which power wells this call controls.
|
|
*/
|
|
void intel_power_domains_disable(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
|
|
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
|
|
power_domains->init_wakeref =
|
|
intel_display_power_get(i915, POWER_DOMAIN_INIT);
|
|
|
|
intel_power_domains_verify_state(i915);
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_suspend - suspend power domain state
|
|
* @i915: i915 device instance
|
|
* @suspend_mode: specifies the target suspend state (idle, mem, hibernation)
|
|
*
|
|
* This function prepares the hardware power domain state before entering
|
|
* system suspend.
|
|
*
|
|
* It must be called with power domains already disabled (after a call to
|
|
* intel_power_domains_disable()) and paired with intel_power_domains_resume().
|
|
*/
|
|
void intel_power_domains_suspend(struct drm_i915_private *i915,
|
|
enum i915_drm_suspend_mode suspend_mode)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
intel_wakeref_t wakeref __maybe_unused =
|
|
fetch_and_zero(&power_domains->init_wakeref);
|
|
|
|
intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
|
|
|
|
/*
|
|
* In case of suspend-to-idle (aka S0ix) on a DMC platform without DC9
|
|
* support don't manually deinit the power domains. This also means the
|
|
* DMC firmware will stay active, it will power down any HW
|
|
* resources as required and also enable deeper system power states
|
|
* that would be blocked if the firmware was inactive.
|
|
*/
|
|
if (!(i915->dmc.allowed_dc_mask & DC_STATE_EN_DC9) &&
|
|
suspend_mode == I915_DRM_SUSPEND_IDLE &&
|
|
intel_dmc_has_payload(i915)) {
|
|
intel_display_power_flush_work(i915);
|
|
intel_power_domains_verify_state(i915);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Even if power well support was disabled we still want to disable
|
|
* power wells if power domains must be deinitialized for suspend.
|
|
*/
|
|
if (!i915->params.disable_power_well)
|
|
intel_display_power_put(i915, POWER_DOMAIN_INIT,
|
|
fetch_and_zero(&i915->power_domains.disable_wakeref));
|
|
|
|
intel_display_power_flush_work(i915);
|
|
intel_power_domains_verify_state(i915);
|
|
|
|
if (DISPLAY_VER(i915) >= 11)
|
|
icl_display_core_uninit(i915);
|
|
else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
|
|
bxt_display_core_uninit(i915);
|
|
else if (DISPLAY_VER(i915) == 9)
|
|
skl_display_core_uninit(i915);
|
|
|
|
power_domains->display_core_suspended = true;
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_resume - resume power domain state
|
|
* @i915: i915 device instance
|
|
*
|
|
* This function resume the hardware power domain state during system resume.
|
|
*
|
|
* It will return with power domain support disabled (to be enabled later by
|
|
* intel_power_domains_enable()) and must be paired with
|
|
* intel_power_domains_suspend().
|
|
*/
|
|
void intel_power_domains_resume(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
|
|
if (power_domains->display_core_suspended) {
|
|
intel_power_domains_init_hw(i915, true);
|
|
power_domains->display_core_suspended = false;
|
|
} else {
|
|
drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
|
|
power_domains->init_wakeref =
|
|
intel_display_power_get(i915, POWER_DOMAIN_INIT);
|
|
}
|
|
|
|
intel_power_domains_verify_state(i915);
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
|
|
|
|
static void intel_power_domains_dump_info(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
struct i915_power_well *power_well;
|
|
|
|
for_each_power_well(i915, power_well) {
|
|
enum intel_display_power_domain domain;
|
|
|
|
drm_dbg(&i915->drm, "%-25s %d\n",
|
|
power_well->desc->name, power_well->count);
|
|
|
|
for_each_power_domain(domain, power_well->desc->domains)
|
|
drm_dbg(&i915->drm, " %-23s %d\n",
|
|
intel_display_power_domain_str(domain),
|
|
power_domains->domain_use_count[domain]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* intel_power_domains_verify_state - verify the HW/SW state for all power wells
|
|
* @i915: i915 device instance
|
|
*
|
|
* Verify if the reference count of each power well matches its HW enabled
|
|
* state and the total refcount of the domains it belongs to. This must be
|
|
* called after modeset HW state sanitization, which is responsible for
|
|
* acquiring reference counts for any power wells in use and disabling the
|
|
* ones left on by BIOS but not required by any active output.
|
|
*/
|
|
static void intel_power_domains_verify_state(struct drm_i915_private *i915)
|
|
{
|
|
struct i915_power_domains *power_domains = &i915->power_domains;
|
|
struct i915_power_well *power_well;
|
|
bool dump_domain_info;
|
|
|
|
mutex_lock(&power_domains->lock);
|
|
|
|
verify_async_put_domains_state(power_domains);
|
|
|
|
dump_domain_info = false;
|
|
for_each_power_well(i915, power_well) {
|
|
enum intel_display_power_domain domain;
|
|
int domains_count;
|
|
bool enabled;
|
|
|
|
enabled = power_well->desc->ops->is_enabled(i915, power_well);
|
|
if ((power_well->count || power_well->desc->always_on) !=
|
|
enabled)
|
|
drm_err(&i915->drm,
|
|
"power well %s state mismatch (refcount %d/enabled %d)",
|
|
power_well->desc->name,
|
|
power_well->count, enabled);
|
|
|
|
domains_count = 0;
|
|
for_each_power_domain(domain, power_well->desc->domains)
|
|
domains_count += power_domains->domain_use_count[domain];
|
|
|
|
if (power_well->count != domains_count) {
|
|
drm_err(&i915->drm,
|
|
"power well %s refcount/domain refcount mismatch "
|
|
"(refcount %d/domains refcount %d)\n",
|
|
power_well->desc->name, power_well->count,
|
|
domains_count);
|
|
dump_domain_info = true;
|
|
}
|
|
}
|
|
|
|
if (dump_domain_info) {
|
|
static bool dumped;
|
|
|
|
if (!dumped) {
|
|
intel_power_domains_dump_info(i915);
|
|
dumped = true;
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&power_domains->lock);
|
|
}
|
|
|
|
#else
|
|
|
|
static void intel_power_domains_verify_state(struct drm_i915_private *i915)
|
|
{
|
|
}
|
|
|
|
#endif
|
|
|
|
void intel_display_power_suspend_late(struct drm_i915_private *i915)
|
|
{
|
|
if (DISPLAY_VER(i915) >= 11 || IS_GEMINILAKE(i915) ||
|
|
IS_BROXTON(i915)) {
|
|
bxt_enable_dc9(i915);
|
|
} else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
|
|
hsw_enable_pc8(i915);
|
|
}
|
|
|
|
/* Tweaked Wa_14010685332:cnp,icp,jsp,mcc,tgp,adp */
|
|
if (INTEL_PCH_TYPE(i915) >= PCH_CNP && INTEL_PCH_TYPE(i915) < PCH_DG1)
|
|
intel_de_rmw(i915, SOUTH_CHICKEN1, SBCLK_RUN_REFCLK_DIS, SBCLK_RUN_REFCLK_DIS);
|
|
}
|
|
|
|
void intel_display_power_resume_early(struct drm_i915_private *i915)
|
|
{
|
|
if (DISPLAY_VER(i915) >= 11 || IS_GEMINILAKE(i915) ||
|
|
IS_BROXTON(i915)) {
|
|
gen9_sanitize_dc_state(i915);
|
|
bxt_disable_dc9(i915);
|
|
} else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
|
|
hsw_disable_pc8(i915);
|
|
}
|
|
|
|
/* Tweaked Wa_14010685332:cnp,icp,jsp,mcc,tgp,adp */
|
|
if (INTEL_PCH_TYPE(i915) >= PCH_CNP && INTEL_PCH_TYPE(i915) < PCH_DG1)
|
|
intel_de_rmw(i915, SOUTH_CHICKEN1, SBCLK_RUN_REFCLK_DIS, 0);
|
|
}
|
|
|
|
void intel_display_power_suspend(struct drm_i915_private *i915)
|
|
{
|
|
if (DISPLAY_VER(i915) >= 11) {
|
|
icl_display_core_uninit(i915);
|
|
bxt_enable_dc9(i915);
|
|
} else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915)) {
|
|
bxt_display_core_uninit(i915);
|
|
bxt_enable_dc9(i915);
|
|
} else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
|
|
hsw_enable_pc8(i915);
|
|
}
|
|
}
|
|
|
|
void intel_display_power_resume(struct drm_i915_private *i915)
|
|
{
|
|
if (DISPLAY_VER(i915) >= 11) {
|
|
bxt_disable_dc9(i915);
|
|
icl_display_core_init(i915, true);
|
|
if (intel_dmc_has_payload(i915)) {
|
|
if (i915->dmc.allowed_dc_mask &
|
|
DC_STATE_EN_UPTO_DC6)
|
|
skl_enable_dc6(i915);
|
|
else if (i915->dmc.allowed_dc_mask &
|
|
DC_STATE_EN_UPTO_DC5)
|
|
gen9_enable_dc5(i915);
|
|
}
|
|
} else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915)) {
|
|
bxt_disable_dc9(i915);
|
|
bxt_display_core_init(i915, true);
|
|
if (intel_dmc_has_payload(i915) &&
|
|
(i915->dmc.allowed_dc_mask & DC_STATE_EN_UPTO_DC5))
|
|
gen9_enable_dc5(i915);
|
|
} else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
|
|
hsw_disable_pc8(i915);
|
|
}
|
|
}
|