diff mbox series

[1/8] drm/i915/display: use drm_crtc_wait_one_vblank() directly when possible

Message ID e09c3fa8757ed67bbc4d8c2a49a28473af2fbfcb.1637588831.git.jani.nikula@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: break intel_display_types.h dependency on i915_drv.h | expand

Commit Message

Jani Nikula Nov. 22, 2021, 1:51 p.m. UTC
intel_wait_for_vblank() goes through a pipe to crtc lookup, while in
most cases we already have the crtc available. Avoid the extra lookups.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_crt.c      |  4 +--
 drivers/gpu/drm/i915/display/intel_display.c  | 29 +++++++++----------
 .../drm/i915/display/intel_display_types.h    |  4 +--
 drivers/gpu/drm/i915/display/intel_dp.c       |  2 +-
 drivers/gpu/drm/i915/display/intel_sdvo.c     |  2 +-
 drivers/gpu/drm/i915/display/intel_tv.c       |  7 ++---
 6 files changed, 23 insertions(+), 25 deletions(-)

Comments

Ville Syrjälä Nov. 25, 2021, 10:32 a.m. UTC | #1
On Mon, Nov 22, 2021 at 03:51:02PM +0200, Jani Nikula wrote:
> intel_wait_for_vblank() goes through a pipe to crtc lookup, while in
> most cases we already have the crtc available. Avoid the extra lookups.
> 
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_crt.c      |  4 +--
>  drivers/gpu/drm/i915/display/intel_display.c  | 29 +++++++++----------
>  .../drm/i915/display/intel_display_types.h    |  4 +--
>  drivers/gpu/drm/i915/display/intel_dp.c       |  2 +-
>  drivers/gpu/drm/i915/display/intel_sdvo.c     |  2 +-
>  drivers/gpu/drm/i915/display/intel_tv.c       |  7 ++---
>  6 files changed, 23 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
> index f0f28572dfdc..8796527f74e5 100644
> --- a/drivers/gpu/drm/i915/display/intel_crt.c
> +++ b/drivers/gpu/drm/i915/display/intel_crt.c
> @@ -321,8 +321,8 @@ static void hsw_enable_crt(struct intel_atomic_state *state,
>  
>  	intel_crt_set_dpms(encoder, crtc_state, DRM_MODE_DPMS_ON);
>  
> -	intel_wait_for_vblank(dev_priv, pipe);
> -	intel_wait_for_vblank(dev_priv, pipe);
> +	drm_crtc_wait_one_vblank(&crtc->base);
> +	drm_crtc_wait_one_vblank(&crtc->base);

That function really is poorly named. Makes me think it's waiting until
one vblank period has passed or something. We should probably rename it
to actually make sense. Or we could just keep an intel_crtc based wrapper
with a more sensible name. The most honest name might actually be
...wait_for_next_vblank().
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index f0f28572dfdc..8796527f74e5 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -321,8 +321,8 @@  static void hsw_enable_crt(struct intel_atomic_state *state,
 
 	intel_crt_set_dpms(encoder, crtc_state, DRM_MODE_DPMS_ON);
 
-	intel_wait_for_vblank(dev_priv, pipe);
-	intel_wait_for_vblank(dev_priv, pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
+	drm_crtc_wait_one_vblank(&crtc->base);
 	intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 	intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
 }
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index f3c9208a30b1..48d93d1f6c1a 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -772,7 +772,7 @@  void intel_plane_disable_noatomic(struct intel_crtc *crtc,
 	 */
 	if (HAS_GMCH(dev_priv) &&
 	    intel_set_memory_cxsr(dev_priv, false))
-		intel_wait_for_vblank(dev_priv, crtc->pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	/*
 	 * Gen2 reports pipe underruns whenever all planes are disabled.
@@ -782,7 +782,7 @@  void intel_plane_disable_noatomic(struct intel_crtc *crtc,
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false);
 
 	intel_plane_disable_arm(plane, crtc_state);
-	intel_wait_for_vblank(dev_priv, crtc->pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
 }
 
 unsigned int
@@ -1155,7 +1155,7 @@  void hsw_disable_ips(const struct intel_crtc_state *crtc_state)
 	}
 
 	/* We need to wait for a vblank before we can disable the plane. */
-	intel_wait_for_vblank(dev_priv, crtc->pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
 }
 
 static void intel_crtc_dpms_overlay_disable(struct intel_crtc *crtc)
@@ -1386,7 +1386,6 @@  static void intel_crtc_disable_flip_done(struct intel_atomic_state *state,
 static void intel_crtc_async_flip_disable_wa(struct intel_atomic_state *state,
 					     struct intel_crtc *crtc)
 {
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
 	const struct intel_crtc_state *old_crtc_state =
 		intel_atomic_get_old_crtc_state(state, crtc);
 	const struct intel_crtc_state *new_crtc_state =
@@ -1412,7 +1411,7 @@  static void intel_crtc_async_flip_disable_wa(struct intel_atomic_state *state,
 	}
 
 	if (need_vbl_wait)
-		intel_wait_for_vblank(i915, crtc->pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 }
 
 static void intel_pre_plane_update(struct intel_atomic_state *state,
@@ -1431,7 +1430,7 @@  static void intel_pre_plane_update(struct intel_atomic_state *state,
 		hsw_disable_ips(old_crtc_state);
 
 	if (intel_fbc_pre_update(state, crtc))
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	if (!needs_async_flip_vtd_wa(old_crtc_state) &&
 	    needs_async_flip_vtd_wa(new_crtc_state))
@@ -1463,7 +1462,7 @@  static void intel_pre_plane_update(struct intel_atomic_state *state,
 	 */
 	if (HAS_GMCH(dev_priv) && old_crtc_state->hw.active &&
 	    new_crtc_state->disable_cxsr && intel_set_memory_cxsr(dev_priv, false))
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	/*
 	 * IVB workaround: must disable low power watermarks for at least
@@ -1474,7 +1473,7 @@  static void intel_pre_plane_update(struct intel_atomic_state *state,
 	 */
 	if (old_crtc_state->hw.active &&
 	    new_crtc_state->disable_lp_wm && ilk_disable_lp_wm(dev_priv))
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	/*
 	 * If we're doing a modeset we don't need to do any
@@ -1890,8 +1889,8 @@  static void ilk_crtc_enable(struct intel_atomic_state *state,
 	 * in case there are more corner cases we don't know about.
 	 */
 	if (new_crtc_state->has_pch_encoder) {
-		intel_wait_for_vblank(dev_priv, pipe);
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
+		drm_crtc_wait_one_vblank(&crtc->base);
 	}
 	intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
 	intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true);
@@ -2091,7 +2090,7 @@  static void hsw_crtc_enable(struct intel_atomic_state *state,
 	intel_encoders_enable(state, crtc);
 
 	if (psl_clkgate_wa) {
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
 	}
 
@@ -2526,7 +2525,7 @@  static void i9xx_crtc_enable(struct intel_atomic_state *state,
 
 	/* prevents spurious underruns */
 	if (DISPLAY_VER(dev_priv) == 2)
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 }
 
 static void i9xx_pfit_disable(const struct intel_crtc_state *old_crtc_state)
@@ -2557,7 +2556,7 @@  static void i9xx_crtc_disable(struct intel_atomic_state *state,
 	 * wait for planes to fully turn off before disabling the pipe.
 	 */
 	if (DISPLAY_VER(dev_priv) == 2)
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	intel_encoders_disable(state, crtc);
 
@@ -4642,7 +4641,7 @@  int intel_get_load_detect_pipe(struct drm_connector *connector,
 	drm_atomic_state_put(state);
 
 	/* let the connector get through one full cycle before testing */
-	intel_wait_for_vblank(dev_priv, crtc->pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
 	return true;
 
 fail:
@@ -8459,7 +8458,7 @@  static void skl_commit_modeset_enables(struct intel_atomic_state *state)
 			if (!skl_ddb_entry_equal(&new_crtc_state->wm.skl.ddb,
 						 &old_crtc_state->wm.skl.ddb) &&
 			    (update_pipes | modeset_pipes))
-				intel_wait_for_vblank(dev_priv, pipe);
+				drm_crtc_wait_one_vblank(&crtc->base);
 		}
 	}
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index ea1e8a6e10b0..a5508b8cdf63 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -2027,10 +2027,10 @@  intel_wait_for_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
 static inline void
 intel_wait_for_vblank_if_active(struct drm_i915_private *dev_priv, enum pipe pipe)
 {
-	const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
+	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
 
 	if (crtc->active)
-		intel_wait_for_vblank(dev_priv, pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 }
 
 static inline bool intel_modifier_uses_dpt(struct drm_i915_private *i915, u64 modifier)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 0a424bf69396..1997b9ef4bb5 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3894,7 +3894,7 @@  int intel_dp_retrain_link(struct intel_encoder *encoder,
 			to_intel_crtc_state(crtc->base.state);
 
 		/* Keep underrun reporting disabled until things are stable */
-		intel_wait_for_vblank(dev_priv, crtc->pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 		intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, true);
 		if (crtc_state->has_pch_encoder)
diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
index 2dc6c3742ba2..7c026889f46c 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
@@ -1842,7 +1842,7 @@  static void intel_enable_sdvo(struct intel_atomic_state *state,
 	intel_sdvo_write_sdvox(intel_sdvo, temp);
 
 	for (i = 0; i < 2; i++)
-		intel_wait_for_vblank(dev_priv, crtc->pipe);
+		drm_crtc_wait_one_vblank(&crtc->base);
 
 	success = intel_sdvo_get_trained_inputs(intel_sdvo, &input1, &input2);
 	/*
diff --git a/drivers/gpu/drm/i915/display/intel_tv.c b/drivers/gpu/drm/i915/display/intel_tv.c
index 88a398df9621..f01d5ea4aadc 100644
--- a/drivers/gpu/drm/i915/display/intel_tv.c
+++ b/drivers/gpu/drm/i915/display/intel_tv.c
@@ -924,8 +924,7 @@  intel_enable_tv(struct intel_atomic_state *state,
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
 	/* Prevents vblank waits from timing out in intel_tv_detect_type() */
-	intel_wait_for_vblank(dev_priv,
-			      to_intel_crtc(pipe_config->uapi.crtc)->pipe);
+	drm_crtc_wait_one_vblank(pipe_config->uapi.crtc);
 
 	intel_de_write(dev_priv, TV_CTL,
 		       intel_de_read(dev_priv, TV_CTL) | TV_ENC_ENABLE);
@@ -1618,7 +1617,7 @@  intel_tv_detect_type(struct intel_tv *intel_tv,
 	intel_de_write(dev_priv, TV_DAC, tv_dac);
 	intel_de_posting_read(dev_priv, TV_DAC);
 
-	intel_wait_for_vblank(dev_priv, crtc->pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
 
 	type = -1;
 	tv_dac = intel_de_read(dev_priv, TV_DAC);
@@ -1651,7 +1650,7 @@  intel_tv_detect_type(struct intel_tv *intel_tv,
 	intel_de_posting_read(dev_priv, TV_CTL);
 
 	/* For unknown reasons the hw barfs if we don't do this vblank wait. */
-	intel_wait_for_vblank(dev_priv, crtc->pipe);
+	drm_crtc_wait_one_vblank(&crtc->base);
 
 	/* Restore interrupt config */
 	if (connector->polled & DRM_CONNECTOR_POLL_HPD) {