This can all be done from the intel_update_crtc function. Split out the
pipe update into a separate function, just like is done for the planes.
Pull in all the changes done during fastset as well. It makes no sense
for it to still exist as a separate function.
Changes since v1:
- Inline intel_update_pipe_config()
Changes since v2:
- Add comments suggested by matt.
- Reorder commit_pipe_config() to remove all nesting. (Ville, Matt)
- Use intel_set_pipe_src_size((). (Matt)
Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 206 +++++++++----------
1 file changed, 95 insertions(+), 111 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index b77574cda648..239e0ca3e3ec 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -136,8 +136,6 @@ 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_begin_crtc_commit(struct intel_atomic_state *, struct
intel_crtc *);
-static void intel_finish_crtc_commit(struct intel_atomic_state *, struct
intel_crtc *);
static void intel_crtc_init_scalers(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state);
static void skylake_pfit_enable(const struct intel_crtc_state *crtc_state);
@@ -4409,45 +4407,6 @@ static void icl_set_pipe_chicken(struct intel_crtc *crtc)
I915_WRITE(PIPE_CHICKEN(pipe), tmp);
}
-static void intel_update_pipe_config(const struct intel_crtc_state
*old_crtc_state,
- const struct intel_crtc_state
*new_crtc_state)
-{
- struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-
- /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
- crtc->base.mode = new_crtc_state->uapi.mode;
-
- /*
- * Update pipe size and adjust fitter if needed: the reason for this is
- * that in compute_mode_changes we check the native mode (not the pfit
- * mode) to see if we can flip rather than do a full mode set. In the
- * fastboot case, we'll flip, but if we don't update the pipesrc and
- * pfit state, we'll end up with a big fb scanned out into the wrong
- * sized surface.
- */
-
- I915_WRITE(PIPESRC(crtc->pipe),
- ((new_crtc_state->pipe_src_w - 1) << 16) |
- (new_crtc_state->pipe_src_h - 1));
-
- /* on skylake this is done by detaching scalers */
- if (INTEL_GEN(dev_priv) >= 9) {
- skl_detach_scalers(new_crtc_state);
-
- if (new_crtc_state->pch_pfit.enabled)
- skylake_pfit_enable(new_crtc_state);
- } else if (HAS_PCH_SPLIT(dev_priv)) {
- if (new_crtc_state->pch_pfit.enabled)
- ironlake_pfit_enable(new_crtc_state);
- else if (old_crtc_state->pch_pfit.enabled)
- ironlake_pfit_disable(old_crtc_state);
- }
-
- if (INTEL_GEN(dev_priv) >= 11)
- icl_set_pipe_chicken(crtc);
-}
-
static void intel_fdi_normal_train(struct intel_crtc *crtc)
{
struct drm_device *dev = crtc->base.dev;
@@ -13739,13 +13698,91 @@ u32 intel_crtc_get_vblank_counter(struct intel_crtc
*crtc)
return crtc->base.funcs->get_vblank_counter(&crtc->base);
}
+void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+
+ if (!IS_GEN(dev_priv, 2))
+ intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe,
true);
+
+ if (crtc_state->has_pch_encoder) {
+ enum pipe pch_transcoder =
+ intel_crtc_pch_transcoder(crtc);
+
+ intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder,
true);
+ }
+}
+
+static void commit_pipe_config(struct intel_atomic_state *state,
+ struct intel_crtc_state *old_crtc_state,
+ struct intel_crtc_state *new_crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ bool modeset = needs_modeset(new_crtc_state);
+
+ if (dev_priv->display.atomic_update_watermarks)
+ dev_priv->display.atomic_update_watermarks(state,
+ new_crtc_state);
+
+ /*
+ * During modesets pipe configuration was programmed as the
+ * CRTC was enabled.
+ */
+ if (modeset)
+ return;
+
+ if (INTEL_GEN(dev_priv) >= 9)
+ skl_detach_scalers(new_crtc_state);
+
+ if (new_crtc_state->uapi.color_mgmt_changed ||
+ new_crtc_state->update_pipe)
+ intel_color_commit(new_crtc_state);
+
+ if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
+ bdw_set_pipemisc(new_crtc_state);
+
+ if (!new_crtc_state->update_pipe)
+ return;
+
+ /* drm_atomic_helper_update_legacy_modeset_state might not be called. */
+ crtc->base.mode = new_crtc_state->uapi.mode;
+
+ /*
+ * Update pipe size and adjust fitter if needed: the reason for this is
+ * that in compute_mode_changes we check the native mode (not the pfit
+ * mode) to see if we can flip rather than do a full mode set. In the
+ * fastboot case, we'll flip, but if we don't update the pipesrc and
+ * pfit state, we'll end up with a big fb scanned out into the wrong
+ * sized surface.
+ */
+ intel_set_pipe_src_size(new_crtc_state);
+
+ if (INTEL_GEN(dev_priv) >= 9) {
+ /*
+ * enable pipe scaler here if needed, if
+ * it's disabled, that's done by
+ * skl_detach_scalers() above.
+ */
+ skylake_pfit_enable(new_crtc_state);
+ } else if (HAS_PCH_SPLIT(dev_priv)) {
+ if (!new_crtc_state->pch_pfit.enabled)
+ ironlake_pfit_disable(old_crtc_state);
+ else
+ ironlake_pfit_enable(new_crtc_state);
+ }
+
+ if (INTEL_GEN(dev_priv) >= 11)
+ icl_set_pipe_chicken(crtc);
+}
+
static void intel_update_crtc(struct intel_crtc *crtc,
struct intel_atomic_state *state,
struct intel_crtc_state *old_crtc_state,
struct intel_crtc_state *new_crtc_state)
{
- struct drm_device *dev = state->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
bool modeset = needs_modeset(new_crtc_state);
struct intel_plane_state *new_plane_state =
intel_atomic_get_new_plane_state(state,
@@ -13769,14 +13806,27 @@ static void intel_update_crtc(struct intel_crtc *crtc,
else if (new_plane_state)
intel_fbc_enable(crtc, new_crtc_state, new_plane_state);
- intel_begin_crtc_commit(state, crtc);
+ /* Perform vblank evasion around commit operation */
+ intel_pipe_update_start(new_crtc_state);
+
+ commit_pipe_config(state, old_crtc_state, new_crtc_state);
if (INTEL_GEN(dev_priv) >= 9)
skl_update_planes_on_crtc(state, crtc);
else
i9xx_update_planes_on_crtc(state, crtc);
- intel_finish_crtc_commit(state, crtc);
+ intel_pipe_update_end(new_crtc_state);
+
+ /*
+ * We usually enable FIFO underrun interrupts as part of the
+ * CRTC enable sequence during modesets. But when we inherit a
+ * valid pipe configuration from the BIOS we need to take care
+ * of enabling them on the CRTC's first fastset.
+ */
+ if (new_crtc_state->update_pipe && !modeset &&
+ old_crtc_state->hw.mode.private_flags & I915_MODE_FLAG_INHERITED)
+ intel_crtc_arm_fifo_underrun(crtc, new_crtc_state);
}
static void intel_old_crtc_state_disables(struct intel_atomic_state *state,
@@ -14573,72 +14623,6 @@ skl_max_scale(const struct intel_crtc_state
*crtc_state,
return max_scale;
}
-static void intel_begin_crtc_commit(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- struct intel_crtc_state *old_crtc_state =
- intel_atomic_get_old_crtc_state(state, crtc);
- struct intel_crtc_state *new_crtc_state =
- intel_atomic_get_new_crtc_state(state, crtc);
- bool modeset = needs_modeset(new_crtc_state);
-
- /* Perform vblank evasion around commit operation */
- intel_pipe_update_start(new_crtc_state);
-
- if (modeset)
- goto out;
-
- if (new_crtc_state->uapi.color_mgmt_changed ||
- new_crtc_state->update_pipe)
- intel_color_commit(new_crtc_state);
-
- if (new_crtc_state->update_pipe)
- intel_update_pipe_config(old_crtc_state, new_crtc_state);
- else if (INTEL_GEN(dev_priv) >= 9)
- skl_detach_scalers(new_crtc_state);
-
- if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
- bdw_set_pipemisc(new_crtc_state);
-
-out:
- if (dev_priv->display.atomic_update_watermarks)
- dev_priv->display.atomic_update_watermarks(state,
- new_crtc_state);
-}
-
-void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
- struct intel_crtc_state *crtc_state)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-
- if (!IS_GEN(dev_priv, 2))
- intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe,
true);
-
- if (crtc_state->has_pch_encoder) {
- enum pipe pch_transcoder =
- intel_crtc_pch_transcoder(crtc);
-
- intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder,
true);
- }
-}
-
-static void intel_finish_crtc_commit(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct intel_crtc_state *old_crtc_state =
- intel_atomic_get_old_crtc_state(state, crtc);
- struct intel_crtc_state *new_crtc_state =
- intel_atomic_get_new_crtc_state(state, crtc);
-
- intel_pipe_update_end(new_crtc_state);
-
- if (new_crtc_state->update_pipe &&
- !needs_modeset(new_crtc_state) &&
- old_crtc_state->hw.mode.private_flags & I915_MODE_FLAG_INHERITED)
- intel_crtc_arm_fifo_underrun(crtc, new_crtc_state);
-}
-
/**
* intel_plane_destroy - destroy a plane
* @plane: plane to destroy
--
2.20.1
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