Now that we separated everything into uapi and hw, it's
time to make the split definitive. Remove the union and
make a copy of the hw state on modeset and fastset.
Color blobs are copied in crtc atomic_check(), right
before color management is checked.
Changes since v1:
- Copy all blobs immediately after drm_atomic_helper_check_modeset().
- Clear crtc_state->hw on disable, instead of using clear_intel_crtc_state().
Changes since v2:
- Use intel_crtc_free_hw_state + clear in intel_crtc_disable_noatomic().
- Make a intel_crtc_prepare_state() function that clears the crtc_state
and copies hw members.
- Remove setting uapi.adjusted_mode, we now have a direct call to
drm_calc_timestamping_constants().
Changes since v3:
- Rename prefix copy_hw_to_uapi_state() with intel_crtc.
- Copy color blobs to uapi as well.
- Add a intel_crtc_copy_uapi_to_hw_state_nomodeset() function for clarity.
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_atomic.c | 44 ++++++++++
drivers/gpu/drm/i915/display/intel_atomic.h | 2 +
drivers/gpu/drm/i915/display/intel_display.c | 80 ++++++++++++++++---
.../drm/i915/display/intel_display_types.h | 9 ++-
4 files changed, 118 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c
b/drivers/gpu/drm/i915/display/intel_atomic.c
index 366275dc113d..557178906ccf 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -195,6 +195,14 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
__drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi);
+ /* copy color blobs */
+ if (crtc_state->hw.degamma_lut)
+ drm_property_blob_get(crtc_state->hw.degamma_lut);
+ if (crtc_state->hw.ctm)
+ drm_property_blob_get(crtc_state->hw.ctm);
+ if (crtc_state->hw.gamma_lut)
+ drm_property_blob_get(crtc_state->hw.gamma_lut);
+
crtc_state->update_pipe = false;
crtc_state->disable_lp_wm = false;
crtc_state->disable_cxsr = false;
@@ -208,6 +216,41 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
return &crtc_state->uapi;
}
+static void intel_crtc_put_color_blobs(struct intel_crtc_state *crtc_state)
+{
+ drm_property_blob_put(crtc_state->hw.degamma_lut);
+ drm_property_blob_put(crtc_state->hw.gamma_lut);
+ drm_property_blob_put(crtc_state->hw.ctm);
+}
+
+void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state)
+{
+ intel_crtc_put_color_blobs(crtc_state);
+}
+
+void intel_crtc_copy_color_blobs(struct intel_crtc_state *crtc_state)
+{
+ intel_crtc_put_color_blobs(crtc_state);
+
+ if (crtc_state->uapi.degamma_lut)
+ crtc_state->hw.degamma_lut =
+ drm_property_blob_get(crtc_state->uapi.degamma_lut);
+ else
+ crtc_state->hw.degamma_lut = NULL;
+
+ if (crtc_state->uapi.gamma_lut)
+ crtc_state->hw.gamma_lut =
+ drm_property_blob_get(crtc_state->uapi.gamma_lut);
+ else
+ crtc_state->hw.gamma_lut = NULL;
+
+ if (crtc_state->uapi.ctm)
+ crtc_state->hw.ctm =
+ drm_property_blob_get(crtc_state->uapi.ctm);
+ else
+ crtc_state->hw.ctm = NULL;
+}
+
/**
* intel_crtc_destroy_state - destroy crtc state
* @crtc: drm crtc
@@ -223,6 +266,7 @@ intel_crtc_destroy_state(struct drm_crtc *crtc,
struct intel_crtc_state *crtc_state = to_intel_crtc_state(state);
__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
+ intel_crtc_free_hw_state(crtc_state);
kfree(crtc_state);
}
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.h
b/drivers/gpu/drm/i915/display/intel_atomic.h
index 49d5cb1b9e0a..7b49623419ba 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic.h
@@ -36,6 +36,8 @@ intel_digital_connector_duplicate_state(struct drm_connector
*connector);
struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
void intel_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state);
+void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state);
+void intel_crtc_copy_color_blobs(struct intel_crtc_state *crtc_state);
struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
void intel_atomic_state_clear(struct drm_atomic_state *state);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 1bc008c094e4..a765794597ed 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7185,6 +7185,8 @@ static void intel_crtc_disable_noatomic(struct drm_crtc
*crtc,
crtc->enabled = false;
crtc->state->connector_mask = 0;
crtc->state->encoder_mask = 0;
+ intel_crtc_free_hw_state(crtc_state);
+ memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
for_each_encoder_on_crtc(crtc->dev, crtc, encoder)
encoder->base.crtc = NULL;
@@ -12560,8 +12562,48 @@ static bool check_digital_port_conflicts(struct
intel_atomic_state *state)
return ret;
}
+static void
+intel_crtc_copy_uapi_to_hw_state_nomodeset(struct intel_crtc_state *crtc_state)
+{
+ intel_crtc_copy_color_blobs(crtc_state);
+}
+
+static void
+intel_crtc_copy_uapi_to_hw_state(struct intel_crtc_state *crtc_state)
+{
+ crtc_state->hw.enable = crtc_state->uapi.enable;
+ crtc_state->hw.active = crtc_state->uapi.active;
+ crtc_state->hw.mode = crtc_state->uapi.mode;
+ crtc_state->hw.adjusted_mode = crtc_state->uapi.adjusted_mode;
+ intel_crtc_copy_uapi_to_hw_state_nomodeset(crtc_state);
+}
+
+static void intel_crtc_copy_hw_to_uapi_state(struct intel_crtc_state
*crtc_state)
+{
+ crtc_state->uapi.enable = crtc_state->hw.enable;
+ crtc_state->uapi.active = crtc_state->hw.active;
+ crtc_state->uapi.mode = crtc_state->hw.mode;
+ crtc_state->uapi.adjusted_mode = crtc_state->hw.adjusted_mode;
+
+ /* copy color blobs to uapi */
+ drm_property_blob_put(crtc_state->hw.degamma_lut);
+ crtc_state->uapi.degamma_lut = crtc_state->hw.degamma_lut;
+ if (crtc_state->uapi.degamma_lut)
+ drm_property_blob_get(crtc_state->uapi.degamma_lut);
+
+ drm_property_blob_put(crtc_state->uapi.ctm);
+ crtc_state->uapi.ctm = crtc_state->hw.ctm;
+ if (crtc_state->uapi.ctm)
+ drm_property_blob_get(crtc_state->uapi.ctm);
+
+ drm_property_blob_put(crtc_state->uapi.gamma_lut);
+ crtc_state->uapi.gamma_lut = crtc_state->hw.gamma_lut;
+ if (crtc_state->uapi.gamma_lut)
+ drm_property_blob_get(crtc_state->uapi.gamma_lut);
+}
+
static int
-clear_intel_crtc_state(struct intel_crtc_state *crtc_state)
+intel_crtc_prepare_cleared_state(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv =
to_i915(crtc_state->uapi.crtc->dev);
@@ -12571,11 +12613,15 @@ clear_intel_crtc_state(struct intel_crtc_state
*crtc_state)
if (!saved_state)
return -ENOMEM;
+ /* free the old crtc_state->hw members */
+ intel_crtc_free_hw_state(crtc_state);
+
/* FIXME: before the switch to atomic started, a new pipe_config was
* kzalloc'd. Code that depends on any field being zero should be
* fixed, so that the crtc_state can be safely duplicated. For now,
* only fields that are know to not cause problems are preserved. */
+ saved_state->uapi = crtc_state->uapi;
saved_state->scaler_state = crtc_state->scaler_state;
saved_state->shared_dpll = crtc_state->shared_dpll;
saved_state->dpll_hw_state = crtc_state->dpll_hw_state;
@@ -12593,14 +12639,11 @@ clear_intel_crtc_state(struct intel_crtc_state
*crtc_state)
saved_state->sync_mode_slaves_mask =
crtc_state->sync_mode_slaves_mask;
- /* Keep base drm_crtc_state intact, only clear our extended struct */
- BUILD_BUG_ON(offsetof(struct intel_crtc_state, base));
- BUILD_BUG_ON(offsetof(struct intel_crtc_state, uapi));
- BUILD_BUG_ON(offsetof(struct intel_crtc_state, hw));
- memcpy(&crtc_state->uapi + 1, &saved_state->uapi + 1,
- sizeof(*crtc_state) - sizeof(crtc_state->uapi));
-
+ memcpy(crtc_state, saved_state, sizeof(*crtc_state));
kfree(saved_state);
+
+ intel_crtc_copy_uapi_to_hw_state(crtc_state);
+
return 0;
}
@@ -12616,10 +12659,6 @@ intel_modeset_pipe_config(struct intel_crtc_state
*pipe_config)
int i;
bool retry = true;
- ret = clear_intel_crtc_state(pipe_config);
- if (ret)
- return ret;
-
pipe_config->cpu_transcoder =
(enum transcoder) to_intel_crtc(crtc)->pipe;
@@ -13476,6 +13515,8 @@ verify_crtc_state(struct intel_crtc *crtc,
state = old_crtc_state->uapi.state;
__drm_atomic_helper_crtc_destroy_state(&old_crtc_state->uapi);
+ intel_crtc_free_hw_state(old_crtc_state);
+
pipe_config = old_crtc_state;
memset(pipe_config, 0, sizeof(*pipe_config));
pipe_config->uapi.crtc = &crtc->base;
@@ -14010,14 +14051,24 @@ static int intel_atomic_check(struct drm_device *dev,
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
- if (!needs_modeset(new_crtc_state))
+ if (!needs_modeset(new_crtc_state)) {
+ /* Light copy */
+
intel_crtc_copy_uapi_to_hw_state_nomodeset(new_crtc_state);
+
continue;
+ }
if (!new_crtc_state->uapi.enable) {
+ intel_crtc_copy_uapi_to_hw_state(new_crtc_state);
+
any_ms = true;
continue;
}
+ ret = intel_crtc_prepare_cleared_state(new_crtc_state);
+ if (ret)
+ goto fail;
+
ret = intel_modeset_pipe_config(new_crtc_state);
if (ret)
goto fail;
@@ -17291,6 +17342,7 @@ static void intel_modeset_readout_hw_state(struct
drm_device *dev)
to_intel_crtc_state(crtc->base.state);
__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
+ intel_crtc_free_hw_state(crtc_state);
memset(crtc_state, 0, sizeof(*crtc_state));
__drm_atomic_helper_crtc_reset(&crtc->base, &crtc_state->uapi);
@@ -17419,6 +17471,7 @@ static void intel_modeset_readout_hw_state(struct
drm_device *dev)
* set a flag to indicate that a full recalculation is
* needed on the next commit.
*/
+ crtc_state->hw.mode = crtc->base.mode;
crtc_state->hw.mode.private_flags =
I915_MODE_FLAG_INHERITED;
intel_crtc_compute_pixel_rate(crtc_state);
@@ -17467,6 +17520,7 @@ static void intel_modeset_readout_hw_state(struct
drm_device *dev)
intel_bw_crtc_update(bw_state, crtc_state);
+ intel_crtc_copy_hw_to_uapi_state(crtc_state);
intel_pipe_config_sanity_check(dev_priv, crtc_state);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h
b/drivers/gpu/drm/i915/display/intel_display_types.h
index 573ced9dc909..bcf5f7640307 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -757,8 +757,6 @@ enum intel_output_format {
};
struct intel_crtc_state {
- union {
- struct drm_crtc_state base;
/*
* uapi (drm) state. This is the software state shown to userspace.
* In particular, the following members are used for bookkeeping:
@@ -781,8 +779,11 @@ struct intel_crtc_state {
*
* During initial hw readout, they need to be copied to uapi.
*/
- struct drm_crtc_state hw;
- };
+ struct {
+ bool active, enable;
+ struct drm_property_blob *degamma_lut, *gamma_lut, *ctm;
+ struct drm_display_mode mode, adjusted_mode;
+ } hw;
/**
* quirks - bitfield with hw state readout quirks
--
2.23.0
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