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drm/i915/chv: Add a bunch of pre production workarounds

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The following workarounds should be needed for pre-production hardware
only:
* WaDisablePwrmtrEvent:chv
* WaSetMaskForGfxBusyness:chv
* WaDisableGunitClockGating:chv
* WaDisableFfDopClockGating:chv
* WaDisableDopClockGating:chv

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2014-04-09 13:28:41 +03:00 committed by Daniel Vetter
parent 1966e59ec1
commit e4443e459c
2 changed files with 22 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_reg.h
View file

@ -1081,6 +1081,7 @@ enum punit_power_well {
#define IMR 0x020a8
#define ISR 0x020ac
#define VLV_GUNIT_CLOCK_GATE (VLV_DISPLAY_BASE + 0x2060)
#define GINT_DIS (1<<22)
#define GCFG_DIS (1<<8)
#define VLV_GUNIT_CLOCK_GATE2 (VLV_DISPLAY_BASE + 0x2064)
#define VLV_IIR_RW (VLV_DISPLAY_BASE + 0x2084)
@ -1211,6 +1212,7 @@ enum punit_power_well {
#define GEN6_RC_SLEEP_PSMI_CONTROL 0x2050
#define GEN8_RC_SEMA_IDLE_MSG_DISABLE (1 << 12)
#define GEN8_FF_DOP_CLOCK_GATE_DISABLE (1<<10)
#define GEN6_BSD_SLEEP_PSMI_CONTROL 0x12050
#define GEN6_BSD_SLEEP_MSG_DISABLE (1 << 0)
@ -5269,6 +5271,7 @@ enum punit_power_well {
#define HSW_EDRAM_PRESENT 0x120010
#define GEN6_UCGCTL1 0x9400
# define GEN6_EU_TCUNIT_CLOCK_GATE_DISABLE (1 << 16)
# define GEN6_BLBUNIT_CLOCK_GATE_DISABLE (1 << 5)
# define GEN6_CSUNIT_CLOCK_GATE_DISABLE (1 << 7)

20
drivers/gpu/drm/i915/intel_pm.c
View file

@ -3466,11 +3466,15 @@ static void gen8_enable_rps(struct drm_device *dev)
I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
/* WaDisablePwrmtrEvent:chv (pre-production hw) */
I915_WRITE(0xA80C, I915_READ(0xA80C) & 0x00ffffff);
I915_WRITE(0xA810, I915_READ(0xA810) & 0xffffff00);
/* 5: Enable RPS */
I915_WRITE(GEN6_RP_CONTROL,
GEN6_RP_MEDIA_TURBO |
GEN6_RP_MEDIA_HW_NORMAL_MODE |
GEN6_RP_MEDIA_IS_GFX |
GEN6_RP_MEDIA_IS_GFX | /* WaSetMaskForGfxBusyness:chv (pre-production hw ?) */
GEN6_RP_ENABLE |
GEN6_RP_UP_BUSY_AVG |
GEN6_RP_DOWN_IDLE_AVG);
@ -5405,6 +5409,20 @@ static void cherryview_init_clock_gating(struct drm_device *dev)
/* WaDisableSamplerPowerBypass:chv (pre-production hw) */
I915_WRITE(HALF_SLICE_CHICKEN3,
_MASKED_BIT_ENABLE(GEN8_SAMPLER_POWER_BYPASS_DIS));
/* WaDisableGunitClockGating:chv (pre-production hw) */
I915_WRITE(VLV_GUNIT_CLOCK_GATE, I915_READ(VLV_GUNIT_CLOCK_GATE) |
GINT_DIS);
/* WaDisableFfDopClockGating:chv (pre-production hw) */
I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL,
_MASKED_BIT_ENABLE(GEN8_FF_DOP_CLOCK_GATE_DISABLE));
/* WaDisableDopClockGating:chv (pre-production hw) */
I915_WRITE(GEN7_ROW_CHICKEN2,
_MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE));
I915_WRITE(GEN6_UCGCTL1, I915_READ(GEN6_UCGCTL1) |
GEN6_EU_TCUNIT_CLOCK_GATE_DISABLE);
}
static void g4x_init_clock_gating(struct drm_device *dev)