mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
![Ville Syrjälä](/assets/img/avatar_default.png)
Replace the somewhat obscure crtc_state.update_pipe checks with a more descriptive thing. Also nicely matches the intel_crtc_needs_modeset() counterpart for full modesets. v2: Handle one more case in the fbc code Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221021162442.27283-2-ville.syrjala@linux.intel.com
247 lines
7.4 KiB
C
247 lines
7.4 KiB
C
// SPDX-License-Identifier: MIT
|
|
/*
|
|
* Copyright © 2022 Intel Corporation
|
|
*
|
|
* High level crtc/connector/encoder modeset state verification.
|
|
*/
|
|
|
|
#include <drm/drm_atomic_state_helper.h>
|
|
|
|
#include "i915_drv.h"
|
|
#include "intel_atomic.h"
|
|
#include "intel_crtc.h"
|
|
#include "intel_crtc_state_dump.h"
|
|
#include "intel_display.h"
|
|
#include "intel_display_types.h"
|
|
#include "intel_fdi.h"
|
|
#include "intel_modeset_verify.h"
|
|
#include "intel_snps_phy.h"
|
|
#include "skl_watermark.h"
|
|
|
|
/*
|
|
* Cross check the actual hw state with our own modeset state tracking (and its
|
|
* internal consistency).
|
|
*/
|
|
static void intel_connector_verify_state(struct intel_crtc_state *crtc_state,
|
|
struct drm_connector_state *conn_state)
|
|
{
|
|
struct intel_connector *connector = to_intel_connector(conn_state->connector);
|
|
struct drm_i915_private *i915 = to_i915(connector->base.dev);
|
|
|
|
drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s]\n",
|
|
connector->base.base.id, connector->base.name);
|
|
|
|
if (connector->get_hw_state(connector)) {
|
|
struct intel_encoder *encoder = intel_attached_encoder(connector);
|
|
|
|
I915_STATE_WARN(!crtc_state,
|
|
"connector enabled without attached crtc\n");
|
|
|
|
if (!crtc_state)
|
|
return;
|
|
|
|
I915_STATE_WARN(!crtc_state->hw.active,
|
|
"connector is active, but attached crtc isn't\n");
|
|
|
|
if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST)
|
|
return;
|
|
|
|
I915_STATE_WARN(conn_state->best_encoder != &encoder->base,
|
|
"atomic encoder doesn't match attached encoder\n");
|
|
|
|
I915_STATE_WARN(conn_state->crtc != encoder->base.crtc,
|
|
"attached encoder crtc differs from connector crtc\n");
|
|
} else {
|
|
I915_STATE_WARN(crtc_state && crtc_state->hw.active,
|
|
"attached crtc is active, but connector isn't\n");
|
|
I915_STATE_WARN(!crtc_state && conn_state->best_encoder,
|
|
"best encoder set without crtc!\n");
|
|
}
|
|
}
|
|
|
|
static void
|
|
verify_connector_state(struct intel_atomic_state *state,
|
|
struct intel_crtc *crtc)
|
|
{
|
|
struct drm_connector *connector;
|
|
struct drm_connector_state *new_conn_state;
|
|
int i;
|
|
|
|
for_each_new_connector_in_state(&state->base, connector, new_conn_state, i) {
|
|
struct drm_encoder *encoder = connector->encoder;
|
|
struct intel_crtc_state *crtc_state = NULL;
|
|
|
|
if (new_conn_state->crtc != &crtc->base)
|
|
continue;
|
|
|
|
if (crtc)
|
|
crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
|
|
|
|
intel_connector_verify_state(crtc_state, new_conn_state);
|
|
|
|
I915_STATE_WARN(new_conn_state->best_encoder != encoder,
|
|
"connector's atomic encoder doesn't match legacy encoder\n");
|
|
}
|
|
}
|
|
|
|
static void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
|
|
const struct intel_crtc_state *pipe_config)
|
|
{
|
|
if (pipe_config->has_pch_encoder) {
|
|
int fdi_dotclock = intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config),
|
|
&pipe_config->fdi_m_n);
|
|
int dotclock = pipe_config->hw.adjusted_mode.crtc_clock;
|
|
|
|
/*
|
|
* FDI already provided one idea for the dotclock.
|
|
* Yell if the encoder disagrees. Allow for slight
|
|
* rounding differences.
|
|
*/
|
|
drm_WARN(&dev_priv->drm, abs(fdi_dotclock - dotclock) > 1,
|
|
"FDI dotclock and encoder dotclock mismatch, fdi: %i, encoder: %i\n",
|
|
fdi_dotclock, dotclock);
|
|
}
|
|
}
|
|
|
|
static void
|
|
verify_encoder_state(struct drm_i915_private *dev_priv, struct intel_atomic_state *state)
|
|
{
|
|
struct intel_encoder *encoder;
|
|
struct drm_connector *connector;
|
|
struct drm_connector_state *old_conn_state, *new_conn_state;
|
|
int i;
|
|
|
|
for_each_intel_encoder(&dev_priv->drm, encoder) {
|
|
bool enabled = false, found = false;
|
|
enum pipe pipe;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s]\n",
|
|
encoder->base.base.id,
|
|
encoder->base.name);
|
|
|
|
for_each_oldnew_connector_in_state(&state->base, connector, old_conn_state,
|
|
new_conn_state, i) {
|
|
if (old_conn_state->best_encoder == &encoder->base)
|
|
found = true;
|
|
|
|
if (new_conn_state->best_encoder != &encoder->base)
|
|
continue;
|
|
|
|
found = true;
|
|
enabled = true;
|
|
|
|
I915_STATE_WARN(new_conn_state->crtc !=
|
|
encoder->base.crtc,
|
|
"connector's crtc doesn't match encoder crtc\n");
|
|
}
|
|
|
|
if (!found)
|
|
continue;
|
|
|
|
I915_STATE_WARN(!!encoder->base.crtc != enabled,
|
|
"encoder's enabled state mismatch (expected %i, found %i)\n",
|
|
!!encoder->base.crtc, enabled);
|
|
|
|
if (!encoder->base.crtc) {
|
|
bool active;
|
|
|
|
active = encoder->get_hw_state(encoder, &pipe);
|
|
I915_STATE_WARN(active,
|
|
"encoder detached but still enabled on pipe %c.\n",
|
|
pipe_name(pipe));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
verify_crtc_state(struct intel_crtc *crtc,
|
|
struct intel_crtc_state *old_crtc_state,
|
|
struct intel_crtc_state *new_crtc_state)
|
|
{
|
|
struct drm_device *dev = crtc->base.dev;
|
|
struct drm_i915_private *dev_priv = to_i915(dev);
|
|
struct intel_encoder *encoder;
|
|
struct intel_crtc_state *pipe_config = old_crtc_state;
|
|
struct drm_atomic_state *state = old_crtc_state->uapi.state;
|
|
struct intel_crtc *master_crtc;
|
|
|
|
__drm_atomic_helper_crtc_destroy_state(&old_crtc_state->uapi);
|
|
intel_crtc_free_hw_state(old_crtc_state);
|
|
intel_crtc_state_reset(old_crtc_state, crtc);
|
|
old_crtc_state->uapi.state = state;
|
|
|
|
drm_dbg_kms(&dev_priv->drm, "[CRTC:%d:%s]\n", crtc->base.base.id,
|
|
crtc->base.name);
|
|
|
|
pipe_config->hw.enable = new_crtc_state->hw.enable;
|
|
|
|
intel_crtc_get_pipe_config(pipe_config);
|
|
|
|
/* we keep both pipes enabled on 830 */
|
|
if (IS_I830(dev_priv) && pipe_config->hw.active)
|
|
pipe_config->hw.active = new_crtc_state->hw.active;
|
|
|
|
I915_STATE_WARN(new_crtc_state->hw.active != pipe_config->hw.active,
|
|
"crtc active state doesn't match with hw state (expected %i, found %i)\n",
|
|
new_crtc_state->hw.active, pipe_config->hw.active);
|
|
|
|
I915_STATE_WARN(crtc->active != new_crtc_state->hw.active,
|
|
"transitional active state does not match atomic hw state (expected %i, found %i)\n",
|
|
new_crtc_state->hw.active, crtc->active);
|
|
|
|
master_crtc = intel_master_crtc(new_crtc_state);
|
|
|
|
for_each_encoder_on_crtc(dev, &master_crtc->base, encoder) {
|
|
enum pipe pipe;
|
|
bool active;
|
|
|
|
active = encoder->get_hw_state(encoder, &pipe);
|
|
I915_STATE_WARN(active != new_crtc_state->hw.active,
|
|
"[ENCODER:%i] active %i with crtc active %i\n",
|
|
encoder->base.base.id, active,
|
|
new_crtc_state->hw.active);
|
|
|
|
I915_STATE_WARN(active && master_crtc->pipe != pipe,
|
|
"Encoder connected to wrong pipe %c\n",
|
|
pipe_name(pipe));
|
|
|
|
if (active)
|
|
intel_encoder_get_config(encoder, pipe_config);
|
|
}
|
|
|
|
if (!new_crtc_state->hw.active)
|
|
return;
|
|
|
|
intel_pipe_config_sanity_check(dev_priv, pipe_config);
|
|
|
|
if (!intel_pipe_config_compare(new_crtc_state,
|
|
pipe_config, false)) {
|
|
I915_STATE_WARN(1, "pipe state doesn't match!\n");
|
|
intel_crtc_state_dump(pipe_config, NULL, "hw state");
|
|
intel_crtc_state_dump(new_crtc_state, NULL, "sw state");
|
|
}
|
|
}
|
|
|
|
void intel_modeset_verify_crtc(struct intel_crtc *crtc,
|
|
struct intel_atomic_state *state,
|
|
struct intel_crtc_state *old_crtc_state,
|
|
struct intel_crtc_state *new_crtc_state)
|
|
{
|
|
if (!intel_crtc_needs_modeset(new_crtc_state) &&
|
|
!intel_crtc_needs_fastset(new_crtc_state))
|
|
return;
|
|
|
|
intel_wm_state_verify(crtc, new_crtc_state);
|
|
verify_connector_state(state, crtc);
|
|
verify_crtc_state(crtc, old_crtc_state, new_crtc_state);
|
|
intel_shared_dpll_state_verify(crtc, old_crtc_state, new_crtc_state);
|
|
intel_mpllb_state_verify(state, new_crtc_state);
|
|
}
|
|
|
|
void intel_modeset_verify_disabled(struct drm_i915_private *dev_priv,
|
|
struct intel_atomic_state *state)
|
|
{
|
|
verify_encoder_state(dev_priv, state);
|
|
verify_connector_state(state, NULL);
|
|
intel_shared_dpll_verify_disabled(dev_priv);
|
|
}
|