Re: [Intel-gfx] [RFC v3 5/9] drm/i915: Extract framebufer CCS offset checks into a function
On Mon, Sep 23, 2019 at 03:29:31AM -0700, Dhinakaran Pandiyan wrote:
> intel_fill_fb_info() has grown quite large and wrapping the offset checks
> into a separate function makes the loop a bit easier to follow.
>
> Cc: Ville Syrjälä
> Cc: Matt Roper
> Signed-off-by: Dhinakaran Pandiyan
I agree with Ville's comments, but otherwise,
Reviewed-by: Matt Roper
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 69
> 1 file changed, 40 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 6fec43cdddf4..7447001c1f85 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2682,6 +2682,43 @@ static bool intel_plane_needs_remap(const struct
> intel_plane_state *plane_state)
> return stride > max_stride;
> }
>
> +static int
> +intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int x, int y)
> +{
> + struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> + int hsub = fb->format->hsub;
> + int vsub = fb->format->vsub;
> + int tile_width, tile_height;
> + int ccs_x, ccs_y;
> + int main_x, main_y;
> +
> + intel_tile_dims(fb, 1, _width, _height);
> +
> + tile_width *= hsub;
> + tile_height *= vsub;
> +
> + ccs_x = (x * hsub) % tile_width;
> + ccs_y = (y * vsub) % tile_height;
> + main_x = intel_fb->normal[0].x % tile_width;
> + main_y = intel_fb->normal[0].y % tile_height;
> +
> + /*
> + * CCS doesn't have its own x/y offset register, so the intra CCS tile
> + * x/y offsets must match between CCS and the main surface.
> + */
> + if (main_x != ccs_x || main_y != ccs_y) {
> + DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs %d,%d) full (main
> %d,%d ccs %d,%d)\n",
> + main_x, main_y,
> + ccs_x, ccs_y,
> + intel_fb->normal[0].x,
> + intel_fb->normal[0].y,
> + x, y);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> static int
> intel_fill_fb_info(struct drm_i915_private *dev_priv,
> struct drm_framebuffer *fb)
> @@ -2713,35 +2750,9 @@ intel_fill_fb_info(struct drm_i915_private *dev_priv,
> }
>
> if (is_ccs_modifier(fb->modifier) && i == 1) {
> - int hsub = fb->format->hsub;
> - int vsub = fb->format->vsub;
> - int tile_width, tile_height;
> - int main_x, main_y;
> - int ccs_x, ccs_y;
> -
> - intel_tile_dims(fb, i, _width, _height);
> -
> - tile_width *= hsub;
> - tile_height *= vsub;
> -
> - ccs_x = (x * hsub) % tile_width;
> - ccs_y = (y * vsub) % tile_height;
> - main_x = intel_fb->normal[0].x % tile_width;
> - main_y = intel_fb->normal[0].y % tile_height;
> -
> - /*
> - * CCS doesn't have its own x/y offset register, so the
> intra CCS tile
> - * x/y offsets must match between CCS and the main
> surface.
> - */
> - if (main_x != ccs_x || main_y != ccs_y) {
> - DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs
> %d,%d) full (main %d,%d ccs %d,%d)\n",
> - main_x, main_y,
> - ccs_x, ccs_y,
> - intel_fb->normal[0].x,
> - intel_fb->normal[0].y,
> - x, y);
> - return -EINVAL;
> - }
> + ret = intel_fb_check_ccs_xy(fb, x, y);
> + if (ret)
> + return ret;
> }
>
> /*
> --
> 2.17.1
>
--
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795
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Re: [Intel-gfx] [RFC v3 5/9] drm/i915: Extract framebufer CCS offset checks into a function
On Mon, Sep 23, 2019 at 03:29:31AM -0700, Dhinakaran Pandiyan wrote:
> intel_fill_fb_info() has grown quite large and wrapping the offset checks
> into a separate function makes the loop a bit easier to follow.
>
> Cc: Ville Syrjälä
> Cc: Matt Roper
> Signed-off-by: Dhinakaran Pandiyan
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 69
> 1 file changed, 40 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 6fec43cdddf4..7447001c1f85 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2682,6 +2682,43 @@ static bool intel_plane_needs_remap(const struct
> intel_plane_state *plane_state)
> return stride > max_stride;
> }
>
> +static int
> +intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int x, int y)
fb can be const
> +{
> + struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> + int hsub = fb->format->hsub;
> + int vsub = fb->format->vsub;
> + int tile_width, tile_height;
> + int ccs_x, ccs_y;
> + int main_x, main_y;
> +
> + intel_tile_dims(fb, 1, _width, _height);
> +
> + tile_width *= hsub;
> + tile_height *= vsub;
> +
> + ccs_x = (x * hsub) % tile_width;
> + ccs_y = (y * vsub) % tile_height;
> + main_x = intel_fb->normal[0].x % tile_width;
> + main_y = intel_fb->normal[0].y % tile_height;
> +
> + /*
> + * CCS doesn't have its own x/y offset register, so the intra CCS tile
> + * x/y offsets must match between CCS and the main surface.
> + */
Formatting fail with the comment?
Reviewed-by: Ville Syrjälä
> + if (main_x != ccs_x || main_y != ccs_y) {
> + DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs %d,%d) full (main
> %d,%d ccs %d,%d)\n",
> + main_x, main_y,
> + ccs_x, ccs_y,
> + intel_fb->normal[0].x,
> + intel_fb->normal[0].y,
> + x, y);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> static int
> intel_fill_fb_info(struct drm_i915_private *dev_priv,
> struct drm_framebuffer *fb)
> @@ -2713,35 +2750,9 @@ intel_fill_fb_info(struct drm_i915_private *dev_priv,
> }
>
> if (is_ccs_modifier(fb->modifier) && i == 1) {
> - int hsub = fb->format->hsub;
> - int vsub = fb->format->vsub;
> - int tile_width, tile_height;
> - int main_x, main_y;
> - int ccs_x, ccs_y;
> -
> - intel_tile_dims(fb, i, _width, _height);
> -
> - tile_width *= hsub;
> - tile_height *= vsub;
> -
> - ccs_x = (x * hsub) % tile_width;
> - ccs_y = (y * vsub) % tile_height;
> - main_x = intel_fb->normal[0].x % tile_width;
> - main_y = intel_fb->normal[0].y % tile_height;
> -
> - /*
> - * CCS doesn't have its own x/y offset register, so the
> intra CCS tile
> - * x/y offsets must match between CCS and the main
> surface.
> - */
> - if (main_x != ccs_x || main_y != ccs_y) {
> - DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs
> %d,%d) full (main %d,%d ccs %d,%d)\n",
> - main_x, main_y,
> - ccs_x, ccs_y,
> - intel_fb->normal[0].x,
> - intel_fb->normal[0].y,
> - x, y);
> - return -EINVAL;
> - }
> + ret = intel_fb_check_ccs_xy(fb, x, y);
> + if (ret)
> + return ret;
> }
>
> /*
> --
> 2.17.1
--
Ville Syrjälä
Intel
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[Intel-gfx] [RFC v3 5/9] drm/i915: Extract framebufer CCS offset checks into a function
intel_fill_fb_info() has grown quite large and wrapping the offset checks
into a separate function makes the loop a bit easier to follow.
Cc: Ville Syrjälä
Cc: Matt Roper
Signed-off-by: Dhinakaran Pandiyan
---
drivers/gpu/drm/i915/display/intel_display.c | 69
1 file changed, 40 insertions(+), 29 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c
b/drivers/gpu/drm/i915/display/intel_display.c
index 6fec43cdddf4..7447001c1f85 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2682,6 +2682,43 @@ static bool intel_plane_needs_remap(const struct
intel_plane_state *plane_state)
return stride > max_stride;
}
+static int
+intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int x, int y)
+{
+ struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
+ int hsub = fb->format->hsub;
+ int vsub = fb->format->vsub;
+ int tile_width, tile_height;
+ int ccs_x, ccs_y;
+ int main_x, main_y;
+
+ intel_tile_dims(fb, 1, _width, _height);
+
+ tile_width *= hsub;
+ tile_height *= vsub;
+
+ ccs_x = (x * hsub) % tile_width;
+ ccs_y = (y * vsub) % tile_height;
+ main_x = intel_fb->normal[0].x % tile_width;
+ main_y = intel_fb->normal[0].y % tile_height;
+
+ /*
+ * CCS doesn't have its own x/y offset register, so the intra CCS tile
+ * x/y offsets must match between CCS and the main surface.
+ */
+ if (main_x != ccs_x || main_y != ccs_y) {
+ DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs %d,%d) full (main
%d,%d ccs %d,%d)\n",
+ main_x, main_y,
+ ccs_x, ccs_y,
+ intel_fb->normal[0].x,
+ intel_fb->normal[0].y,
+ x, y);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int
intel_fill_fb_info(struct drm_i915_private *dev_priv,
struct drm_framebuffer *fb)
@@ -2713,35 +2750,9 @@ intel_fill_fb_info(struct drm_i915_private *dev_priv,
}
if (is_ccs_modifier(fb->modifier) && i == 1) {
- int hsub = fb->format->hsub;
- int vsub = fb->format->vsub;
- int tile_width, tile_height;
- int main_x, main_y;
- int ccs_x, ccs_y;
-
- intel_tile_dims(fb, i, _width, _height);
-
- tile_width *= hsub;
- tile_height *= vsub;
-
- ccs_x = (x * hsub) % tile_width;
- ccs_y = (y * vsub) % tile_height;
- main_x = intel_fb->normal[0].x % tile_width;
- main_y = intel_fb->normal[0].y % tile_height;
-
- /*
-* CCS doesn't have its own x/y offset register, so the
intra CCS tile
-* x/y offsets must match between CCS and the main
surface.
-*/
- if (main_x != ccs_x || main_y != ccs_y) {
- DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs
%d,%d) full (main %d,%d ccs %d,%d)\n",
- main_x, main_y,
- ccs_x, ccs_y,
- intel_fb->normal[0].x,
- intel_fb->normal[0].y,
- x, y);
- return -EINVAL;
- }
+ ret = intel_fb_check_ccs_xy(fb, x, y);
+ if (ret)
+ return ret;
}
/*
--
2.17.1
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