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drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height 

So far, the drm_format_plane_height/width functions were operating on the
format's fourcc and was doing a lookup to retrieve the drm_format_info
structure and return the cpp.

However, this is inefficient since in most cases, we will have the
drm_format_info pointer already available so we shouldn't have to perform a
new lookup. Some drm_fourcc functions also already operate on the
drm_format_info pointer for that reason, so the API is quite inconsistent
there.

Let's follow the latter pattern and remove the extra lookup while being a
bit more consistent.

In order to be extra consistent, also rename that function to
drm_format_info_plane_cpp and to a static function in the header to match
the current policy. The parameters order have also be changed to match the
other functions prototype.

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/514af1d489d80b8b1767e3716b663ce5103da6eb.1558002671.git-series.maxime.ripard@bootlin.com
This commit is contained in:
Maxime Ripard 2019-05-16 12:31:50 +02:00
parent 24c478ead0
commit bf39607c16
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GPG Key ID: E3EF0D6F671851C5
3 changed files with 50 additions and 56 deletions
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48
drivers/gpu/drm/drm_fourcc.c
View File

@ -332,54 +332,6 @@ drm_get_format_info(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_get_format_info);
/**
* drm_format_plane_width - width of the plane given the first plane
* @width: width of the first plane
* @format: pixel format
* @plane: plane index
*
* Returns:
* The width of @plane, given that the width of the first plane is @width.
*/
int drm_format_plane_width(int width, uint32_t format, int plane)
{
const struct drm_format_info *info;
info = drm_format_info(format);
if (!info || plane >= info->num_planes)
return 0;
if (plane == 0)
return width;
return width / info->hsub;
}
EXPORT_SYMBOL(drm_format_plane_width);
/**
* drm_format_plane_height - height of the plane given the first plane
* @height: height of the first plane
* @format: pixel format
* @plane: plane index
*
* Returns:
* The height of @plane, given that the height of the first plane is @height.
*/
int drm_format_plane_height(int height, uint32_t format, int plane)
{
const struct drm_format_info *info;
info = drm_format_info(format);
if (!info || plane >= info->num_planes)
return 0;
if (plane == 0)
return height;
return height / info->vsub;
}
EXPORT_SYMBOL(drm_format_plane_height);
/**
* drm_format_info_block_width - width in pixels of block.
* @info: pixel format info

12
drivers/gpu/drm/meson/meson_overlay.c
View File

@ -466,8 +466,8 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_addr2 = gem->paddr + fb->offsets[2];
priv->viu.vd1_stride2 = fb->pitches[2];
priv->viu.vd1_height2 =
drm_format_plane_height(fb->height,
fb->format->format, 2);
drm_format_info_plane_height(fb->format,
fb->height, 2);
DRM_DEBUG("plane 2 addr 0x%x stride %d height %d\n",
priv->viu.vd1_addr2,
priv->viu.vd1_stride2,
@ -478,8 +478,8 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_addr1 = gem->paddr + fb->offsets[1];
priv->viu.vd1_stride1 = fb->pitches[1];
priv->viu.vd1_height1 =
drm_format_plane_height(fb->height,
fb->format->format, 1);
drm_format_info_plane_height(fb->format,
fb->height, 1);
DRM_DEBUG("plane 1 addr 0x%x stride %d height %d\n",
priv->viu.vd1_addr1,
priv->viu.vd1_stride1,
@ -490,8 +490,8 @@ static void meson_overlay_atomic_update(struct drm_plane *plane,
priv->viu.vd1_addr0 = gem->paddr + fb->offsets[0];
priv->viu.vd1_stride0 = fb->pitches[0];
priv->viu.vd1_height0 =
drm_format_plane_height(fb->height,
fb->format->format, 0);
drm_format_info_plane_height(fb->format,
fb->height, 0);
DRM_DEBUG("plane 0 addr 0x%x stride %d height %d\n",
priv->viu.vd1_addr0,
priv->viu.vd1_stride0,

46
include/drm/drm_fourcc.h
View File

@ -277,6 +277,50 @@ int drm_format_info_plane_cpp(const struct drm_format_info *info, int plane)
return info->cpp[plane];
}
/**
* drm_format_info_plane_width - width of the plane given the first plane
* @format: pixel format info
* @width: width of the first plane
* @plane: plane index
*
* Returns:
* The width of @plane, given that the width of the first plane is @width.
*/
static inline
int drm_format_info_plane_width(const struct drm_format_info *info, int width,
int plane)
{
if (!info || plane >= info->num_planes)
return 0;
if (plane == 0)
return width;
return width / info->hsub;
}
/**
* drm_format_info_plane_height - height of the plane given the first plane
* @format: pixel format info
* @height: height of the first plane
* @plane: plane index
*
* Returns:
* The height of @plane, given that the height of the first plane is @height.
*/
static inline
int drm_format_info_plane_height(const struct drm_format_info *info, int height,
int plane)
{
if (!info || plane >= info->num_planes)
return 0;
if (plane == 0)
return height;
return height / info->vsub;
}
const struct drm_format_info *__drm_format_info(u32 format);
const struct drm_format_info *drm_format_info(u32 format);
const struct drm_format_info *
@ -285,8 +329,6 @@ drm_get_format_info(struct drm_device *dev,
uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
uint32_t bpp, uint32_t depth);
int drm_format_plane_width(int width, uint32_t format, int plane);
int drm_format_plane_height(int height, uint32_t format, int plane);
unsigned int drm_format_info_block_width(const struct drm_format_info *info,
int plane);
unsigned int drm_format_info_block_height(const struct drm_format_info *info,