diff mbox

[04/16] drm/i915/skl+: Use plane size for relative data rate calculation

Message ID 1459475198-30094-5-git-send-email-matthew.d.roper@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Matt Roper April 1, 2016, 1:46 a.m. UTC
From: "Kumar, Mahesh" <mahesh1.kumar@intel.com>

Use plane size for relative data rate calculation. don't always use
pipe source width & height.
adjust height & width according to rotation.
use plane size for watermark calculations also.

v2: Address Matt's comments.
    Use intel_plane_state->visible to avoid divide-by-zero error.
    Where FB was present but not visible so causing total data rate to
    be zero, hence divide-by-zero.

Cc: matthew.d.roper@intel.com
Signed-off-by: Kumar, Mahesh <mahesh1.kumar@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 41 ++++++++++++++++++++++++++++-------------
 1 file changed, 28 insertions(+), 13 deletions(-)

Comments

Imre Deak April 6, 2016, 3:09 p.m. UTC | #1
On to, 2016-03-31 at 18:46 -0700, Matt Roper wrote:
> From: "Kumar, Mahesh" <mahesh1.kumar@intel.com>
> 
> Use plane size for relative data rate calculation. don't always use
> pipe source width & height.
> adjust height & width according to rotation.
> use plane size for watermark calculations also.
> 
> v2: Address Matt's comments.
>     Use intel_plane_state->visible to avoid divide-by-zero error.
>     Where FB was present but not visible so causing total data rate
> to
>     be zero, hence divide-by-zero.
> 
> Cc: matthew.d.roper@intel.com
> Signed-off-by: Kumar, Mahesh <mahesh1.kumar@intel.com>
> Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>

Reference: https://bugs.freedesktop.org/show_bug.cgi?id=93917
Reference: https://bugs.freedesktop.org/show_bug.cgi?id=94044

This patch fixed a screen corruption problem for me with an eDP + DP
config. It somehow made worse by moving the cursor around and I can get
rid of it by switching of the cursor plane.

Matt any chance of getting this merged separately from the rest?

--Imre

> ---
>  drivers/gpu/drm/i915/intel_pm.c | 41 ++++++++++++++++++++++++++++---
> ----------
>  1 file changed, 28 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c
> b/drivers/gpu/drm/i915/intel_pm.c
> index c970c4e..1c3f772 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -2937,24 +2937,28 @@ skl_plane_relative_data_rate(const struct
> intel_crtc_state *cstate,
>  			     const struct drm_plane_state *pstate,
>  			     int y)
>  {
> -	struct intel_crtc *intel_crtc = to_intel_crtc(cstate-
> >base.crtc);
> +	struct intel_plane_state *intel_pstate =
> to_intel_plane_state(pstate);
>  	struct drm_framebuffer *fb = pstate->fb;
> +	uint32_t width = 0, height = 0;
> +
> +	width = drm_rect_width(&intel_pstate->src) >> 16;
> +	height = drm_rect_height(&intel_pstate->src) >> 16;
> +
> +	if (intel_rotation_90_or_270(pstate->rotation))
> +		swap(width, height);
>  
>  	/* for planar format */
>  	if (fb->pixel_format == DRM_FORMAT_NV12) {
>  		if (y)  /* y-plane data rate */
> -			return intel_crtc->config->pipe_src_w *
> -				intel_crtc->config->pipe_src_h *
> +			return width * height *
>  				drm_format_plane_cpp(fb-
> >pixel_format, 0);
>  		else    /* uv-plane data rate */
> -			return (intel_crtc->config->pipe_src_w/2) *
> -				(intel_crtc->config->pipe_src_h/2) *
> +			return (width / 2) * (height / 2) *
>  				drm_format_plane_cpp(fb-
> >pixel_format, 1);
>  	}
>  
>  	/* for packed formats */
> -	return cstate->pipe_src_w * cstate->pipe_src_h *
> -		drm_format_plane_cpp(fb->pixel_format, 0);
> +	return width * height * drm_format_plane_cpp(fb-
> >pixel_format, 0);
>  }
>  
>  /*
> @@ -3033,8 +3037,9 @@ skl_allocate_pipe_ddb(struct intel_crtc_state
> *cstate,
>  		struct drm_framebuffer *fb = plane->state->fb;
>  		int id = skl_wm_plane_id(intel_plane);
>  
> -		if (fb == NULL)
> +		if (!to_intel_plane_state(plane->state)->visible)
>  			continue;
> +
>  		if (plane->type == DRM_PLANE_TYPE_CURSOR)
>  			continue;
>  
> @@ -3060,7 +3065,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state
> *cstate,
>  		uint16_t plane_blocks, y_plane_blocks = 0;
>  		int id = skl_wm_plane_id(intel_plane);
>  
> -		if (pstate->fb == NULL)
> +		if (!to_intel_plane_state(pstate)->visible)
>  			continue;
>  		if (plane->type == DRM_PLANE_TYPE_CURSOR)
>  			continue;
> @@ -3183,26 +3188,36 @@ static bool skl_compute_plane_wm(const struct
> drm_i915_private *dev_priv,
>  {
>  	struct drm_plane *plane = &intel_plane->base;
>  	struct drm_framebuffer *fb = plane->state->fb;
> +	struct intel_plane_state *intel_pstate =
> +					to_intel_plane_state(plane-
> >state);
>  	uint32_t latency = dev_priv->wm.skl_latency[level];
>  	uint32_t method1, method2;
>  	uint32_t plane_bytes_per_line, plane_blocks_per_line;
>  	uint32_t res_blocks, res_lines;
>  	uint32_t selected_result;
>  	uint8_t cpp;
> +	uint32_t width = 0, height = 0;
>  
> -	if (latency == 0 || !cstate->base.active || !fb)
> +	if (latency == 0 || !cstate->base.active || !intel_pstate-
> >visible)
>  		return false;
>  
> +	width = drm_rect_width(&intel_pstate->src) >> 16;
> +	height = drm_rect_height(&intel_pstate->src) >> 16;
> +
> +	if (intel_rotation_90_or_270(plane->state->rotation))
> +		swap(width, height);
> +
>  	cpp = drm_format_plane_cpp(fb->pixel_format, 0);
>  	method1 = skl_wm_method1(skl_pipe_pixel_rate(cstate),
>  				 cpp, latency);
>  	method2 = skl_wm_method2(skl_pipe_pixel_rate(cstate),
>  				 cstate-
> >base.adjusted_mode.crtc_htotal,
> -				 cstate->pipe_src_w,
> -				 cpp, fb->modifier[0],
> +				 width,
> +				 cpp,
> +				 fb->modifier[0],
>  				 latency);
>  
> -	plane_bytes_per_line = cstate->pipe_src_w * cpp;
> +	plane_bytes_per_line = width * cpp;
>  	plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line,
> 512);
>  
>  	if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
Matt Roper April 6, 2016, 6:05 p.m. UTC | #2
On Wed, Apr 06, 2016 at 06:09:00PM +0300, Imre Deak wrote:
> On to, 2016-03-31 at 18:46 -0700, Matt Roper wrote:
> > From: "Kumar, Mahesh" <mahesh1.kumar@intel.com>
> > 
> > Use plane size for relative data rate calculation. don't always use
> > pipe source width & height.
> > adjust height & width according to rotation.
> > use plane size for watermark calculations also.
> > 
> > v2: Address Matt's comments.
> >     Use intel_plane_state->visible to avoid divide-by-zero error.
> >     Where FB was present but not visible so causing total data rate
> > to
> >     be zero, hence divide-by-zero.
> > 
> > Cc: matthew.d.roper@intel.com
> > Signed-off-by: Kumar, Mahesh <mahesh1.kumar@intel.com>
> > Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
> > Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> 
> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=93917
> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=94044
> 
> This patch fixed a screen corruption problem for me with an eDP + DP
> config. It somehow made worse by moving the cursor around and I can get
> rid of it by switching of the cursor plane.
> 
> Matt any chance of getting this merged separately from the rest?
> 
> --Imre

Yep, I'd already reviewed this when Mahesh wrote it a while back so I
just ran this through CI in isolation and it came up clean.  Added
a Cc: -fixes and pushed to dinq.


Matt

> 
> > ---
> >  drivers/gpu/drm/i915/intel_pm.c | 41 ++++++++++++++++++++++++++++---
> > ----------
> >  1 file changed, 28 insertions(+), 13 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_pm.c
> > b/drivers/gpu/drm/i915/intel_pm.c
> > index c970c4e..1c3f772 100644
> > --- a/drivers/gpu/drm/i915/intel_pm.c
> > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > @@ -2937,24 +2937,28 @@ skl_plane_relative_data_rate(const struct
> > intel_crtc_state *cstate,
> >  			     const struct drm_plane_state *pstate,
> >  			     int y)
> >  {
> > -	struct intel_crtc *intel_crtc = to_intel_crtc(cstate-
> > >base.crtc);
> > +	struct intel_plane_state *intel_pstate =
> > to_intel_plane_state(pstate);
> >  	struct drm_framebuffer *fb = pstate->fb;
> > +	uint32_t width = 0, height = 0;
> > +
> > +	width = drm_rect_width(&intel_pstate->src) >> 16;
> > +	height = drm_rect_height(&intel_pstate->src) >> 16;
> > +
> > +	if (intel_rotation_90_or_270(pstate->rotation))
> > +		swap(width, height);
> >  
> >  	/* for planar format */
> >  	if (fb->pixel_format == DRM_FORMAT_NV12) {
> >  		if (y)  /* y-plane data rate */
> > -			return intel_crtc->config->pipe_src_w *
> > -				intel_crtc->config->pipe_src_h *
> > +			return width * height *
> >  				drm_format_plane_cpp(fb-
> > >pixel_format, 0);
> >  		else    /* uv-plane data rate */
> > -			return (intel_crtc->config->pipe_src_w/2) *
> > -				(intel_crtc->config->pipe_src_h/2) *
> > +			return (width / 2) * (height / 2) *
> >  				drm_format_plane_cpp(fb-
> > >pixel_format, 1);
> >  	}
> >  
> >  	/* for packed formats */
> > -	return cstate->pipe_src_w * cstate->pipe_src_h *
> > -		drm_format_plane_cpp(fb->pixel_format, 0);
> > +	return width * height * drm_format_plane_cpp(fb-
> > >pixel_format, 0);
> >  }
> >  
> >  /*
> > @@ -3033,8 +3037,9 @@ skl_allocate_pipe_ddb(struct intel_crtc_state
> > *cstate,
> >  		struct drm_framebuffer *fb = plane->state->fb;
> >  		int id = skl_wm_plane_id(intel_plane);
> >  
> > -		if (fb == NULL)
> > +		if (!to_intel_plane_state(plane->state)->visible)
> >  			continue;
> > +
> >  		if (plane->type == DRM_PLANE_TYPE_CURSOR)
> >  			continue;
> >  
> > @@ -3060,7 +3065,7 @@ skl_allocate_pipe_ddb(struct intel_crtc_state
> > *cstate,
> >  		uint16_t plane_blocks, y_plane_blocks = 0;
> >  		int id = skl_wm_plane_id(intel_plane);
> >  
> > -		if (pstate->fb == NULL)
> > +		if (!to_intel_plane_state(pstate)->visible)
> >  			continue;
> >  		if (plane->type == DRM_PLANE_TYPE_CURSOR)
> >  			continue;
> > @@ -3183,26 +3188,36 @@ static bool skl_compute_plane_wm(const struct
> > drm_i915_private *dev_priv,
> >  {
> >  	struct drm_plane *plane = &intel_plane->base;
> >  	struct drm_framebuffer *fb = plane->state->fb;
> > +	struct intel_plane_state *intel_pstate =
> > +					to_intel_plane_state(plane-
> > >state);
> >  	uint32_t latency = dev_priv->wm.skl_latency[level];
> >  	uint32_t method1, method2;
> >  	uint32_t plane_bytes_per_line, plane_blocks_per_line;
> >  	uint32_t res_blocks, res_lines;
> >  	uint32_t selected_result;
> >  	uint8_t cpp;
> > +	uint32_t width = 0, height = 0;
> >  
> > -	if (latency == 0 || !cstate->base.active || !fb)
> > +	if (latency == 0 || !cstate->base.active || !intel_pstate-
> > >visible)
> >  		return false;
> >  
> > +	width = drm_rect_width(&intel_pstate->src) >> 16;
> > +	height = drm_rect_height(&intel_pstate->src) >> 16;
> > +
> > +	if (intel_rotation_90_or_270(plane->state->rotation))
> > +		swap(width, height);
> > +
> >  	cpp = drm_format_plane_cpp(fb->pixel_format, 0);
> >  	method1 = skl_wm_method1(skl_pipe_pixel_rate(cstate),
> >  				 cpp, latency);
> >  	method2 = skl_wm_method2(skl_pipe_pixel_rate(cstate),
> >  				 cstate-
> > >base.adjusted_mode.crtc_htotal,
> > -				 cstate->pipe_src_w,
> > -				 cpp, fb->modifier[0],
> > +				 width,
> > +				 cpp,
> > +				 fb->modifier[0],
> >  				 latency);
> >  
> > -	plane_bytes_per_line = cstate->pipe_src_w * cpp;
> > +	plane_bytes_per_line = width * cpp;
> >  	plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line,
> > 512);
> >  
> >  	if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index c970c4e..1c3f772 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2937,24 +2937,28 @@  skl_plane_relative_data_rate(const struct intel_crtc_state *cstate,
 			     const struct drm_plane_state *pstate,
 			     int y)
 {
-	struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc);
+	struct intel_plane_state *intel_pstate = to_intel_plane_state(pstate);
 	struct drm_framebuffer *fb = pstate->fb;
+	uint32_t width = 0, height = 0;
+
+	width = drm_rect_width(&intel_pstate->src) >> 16;
+	height = drm_rect_height(&intel_pstate->src) >> 16;
+
+	if (intel_rotation_90_or_270(pstate->rotation))
+		swap(width, height);
 
 	/* for planar format */
 	if (fb->pixel_format == DRM_FORMAT_NV12) {
 		if (y)  /* y-plane data rate */
-			return intel_crtc->config->pipe_src_w *
-				intel_crtc->config->pipe_src_h *
+			return width * height *
 				drm_format_plane_cpp(fb->pixel_format, 0);
 		else    /* uv-plane data rate */
-			return (intel_crtc->config->pipe_src_w/2) *
-				(intel_crtc->config->pipe_src_h/2) *
+			return (width / 2) * (height / 2) *
 				drm_format_plane_cpp(fb->pixel_format, 1);
 	}
 
 	/* for packed formats */
-	return cstate->pipe_src_w * cstate->pipe_src_h *
-		drm_format_plane_cpp(fb->pixel_format, 0);
+	return width * height * drm_format_plane_cpp(fb->pixel_format, 0);
 }
 
 /*
@@ -3033,8 +3037,9 @@  skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 		struct drm_framebuffer *fb = plane->state->fb;
 		int id = skl_wm_plane_id(intel_plane);
 
-		if (fb == NULL)
+		if (!to_intel_plane_state(plane->state)->visible)
 			continue;
+
 		if (plane->type == DRM_PLANE_TYPE_CURSOR)
 			continue;
 
@@ -3060,7 +3065,7 @@  skl_allocate_pipe_ddb(struct intel_crtc_state *cstate,
 		uint16_t plane_blocks, y_plane_blocks = 0;
 		int id = skl_wm_plane_id(intel_plane);
 
-		if (pstate->fb == NULL)
+		if (!to_intel_plane_state(pstate)->visible)
 			continue;
 		if (plane->type == DRM_PLANE_TYPE_CURSOR)
 			continue;
@@ -3183,26 +3188,36 @@  static bool skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
 {
 	struct drm_plane *plane = &intel_plane->base;
 	struct drm_framebuffer *fb = plane->state->fb;
+	struct intel_plane_state *intel_pstate =
+					to_intel_plane_state(plane->state);
 	uint32_t latency = dev_priv->wm.skl_latency[level];
 	uint32_t method1, method2;
 	uint32_t plane_bytes_per_line, plane_blocks_per_line;
 	uint32_t res_blocks, res_lines;
 	uint32_t selected_result;
 	uint8_t cpp;
+	uint32_t width = 0, height = 0;
 
-	if (latency == 0 || !cstate->base.active || !fb)
+	if (latency == 0 || !cstate->base.active || !intel_pstate->visible)
 		return false;
 
+	width = drm_rect_width(&intel_pstate->src) >> 16;
+	height = drm_rect_height(&intel_pstate->src) >> 16;
+
+	if (intel_rotation_90_or_270(plane->state->rotation))
+		swap(width, height);
+
 	cpp = drm_format_plane_cpp(fb->pixel_format, 0);
 	method1 = skl_wm_method1(skl_pipe_pixel_rate(cstate),
 				 cpp, latency);
 	method2 = skl_wm_method2(skl_pipe_pixel_rate(cstate),
 				 cstate->base.adjusted_mode.crtc_htotal,
-				 cstate->pipe_src_w,
-				 cpp, fb->modifier[0],
+				 width,
+				 cpp,
+				 fb->modifier[0],
 				 latency);
 
-	plane_bytes_per_line = cstate->pipe_src_w * cpp;
+	plane_bytes_per_line = width * cpp;
 	plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512);
 
 	if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||