From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
We have a few places where we want to reset a crtc state to its
default values. Let's add a helper for that. We'll need the new
__drm_atomic_helper_crtc_state_reset() helper for this to allow
us to just reset the state itself without clobbering the
crtc->state pointer.
And while at it let's zero out the whole thing, except a few
choice member which we'll mark as "invalid". And thanks to this
we can now nuke intel_crtc_init_scalers().
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 47 +++++++++-----------
1 file changed, 22 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e6291841053f..fd4120533c3f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -164,7 +164,6 @@ static void vlv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
static void chv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
-static void intel_crtc_init_scalers(struct intel_crtc_state *crtc_state);
static void skylake_pfit_enable(const struct intel_crtc_state *crtc_state);
static void ironlake_pfit_disable(const struct intel_crtc_state *old_crtc_state);
static void ironlake_pfit_enable(const struct intel_crtc_state *crtc_state);
@@ -10655,8 +10654,6 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
u64 power_domain_mask;
bool active;
- intel_crtc_init_scalers(pipe_config);
-
pipe_config->master_transcoder = INVALID_TRANSCODER;
power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
@@ -11704,6 +11701,20 @@ static void ironlake_pch_clock_get(struct intel_crtc *crtc,
&pipe_config->fdi_m_n);
}
+static void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
+ struct intel_crtc *crtc)
+{
+ memset(crtc_state, 0, sizeof(*crtc_state));
+
+ __drm_atomic_helper_crtc_state_reset(&crtc_state->uapi, &crtc->base);
+
+ crtc_state->cpu_transcoder = INVALID_TRANSCODER;
+ crtc_state->master_transcoder = INVALID_TRANSCODER;
+ crtc_state->hsw_workaround_pipe = INVALID_PIPE;
+ crtc_state->output_format = INTEL_OUTPUT_FORMAT_INVALID;
+ crtc_state->scaler_state.scaler_id = -1;
+}
+
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
@@ -11729,7 +11740,7 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
return NULL;
}
- crtc_state->uapi.crtc = &crtc->base;
+ intel_crtc_state_reset(crtc_state, crtc);
if (!dev_priv->display.get_pipe_config(crtc, crtc_state)) {
kfree(crtc_state);
@@ -13577,18 +13588,14 @@ verify_crtc_state(struct intel_crtc *crtc,
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;
- struct drm_atomic_state *state;
+ struct intel_crtc_state *pipe_config = old_crtc_state;
+ struct drm_atomic_state *state = old_crtc_state->uapi.state;
bool active;
- 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;
- pipe_config->uapi.state = state;
+ intel_crtc_state_reset(old_crtc_state, crtc);
+ old_crtc_state->uapi.state = state;
DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.base.id, crtc->base.name);
@@ -15745,15 +15752,6 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
return ERR_PTR(ret);
}
-static void intel_crtc_init_scalers(struct intel_crtc_state *crtc_state)
-{
- struct intel_crtc_scaler_state *scaler_state =
- &crtc_state->scaler_state;
-
- memset(scaler_state, 0, sizeof(*scaler_state));
- scaler_state->scaler_id = -1;
-}
-
#define INTEL_CRTC_FUNCS \
.gamma_set = drm_atomic_helper_legacy_gamma_set, \
.set_config = drm_atomic_helper_set_config, \
@@ -15836,9 +15834,9 @@ static struct intel_crtc *intel_crtc_alloc(void)
return ERR_PTR(-ENOMEM);
}
- __drm_atomic_helper_crtc_reset(&crtc->base, &crtc_state->uapi);
- intel_crtc_init_scalers(crtc_state);
+ intel_crtc_state_reset(crtc_state, crtc);
+ crtc->base.state = &crtc_state->uapi;
crtc->config = crtc_state;
return crtc;
@@ -17414,8 +17412,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
__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);
+ intel_crtc_state_reset(crtc_state, crtc);
crtc_state->hw.active = crtc_state->hw.enable =
dev_priv->display.get_pipe_config(crtc, crtc_state);
--
2.23.0
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