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drm: Replace drm_framebuffer plane size functions with its equivalents

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The functions drm_framebuffer_plane_{width,height} and
fb_plane_{width,height} do exactly the same job of its
equivalents drm_format_info_plane_{width,height} from drm_fourcc.

The only reason to have these functions on drm_framebuffer
would be if they would added a abstraction layer to call it just
passing a drm_framebuffer pointer and the desired plane index,
which is not the case, where these functions actually implements
just part of it. In the actual implementation, every call to both
drm_framebuffer_plane_{width,height} and fb_plane_{width,height} should
pass some drm_framebuffer attribute, which is the same as calling the
drm_format_info_plane_{width,height} functions.

The drm_format_info_pane_{width,height} functions are much more
consistent in both its implementation and its location on code. The
kind of calculation that they do is intrinsically derivated from the
drm_format_info struct and has not to do with drm_framebuffer, except
by the potential motivation described above, which is still not a good
justification to have drm_framebuffer functions to calculate it.

So, replace each drm_framebuffer_plane_{width,height} and
fb_plane_{width,height} call to drm_format_info_plane_{width,height}
and remove them.

Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926141519.9315-3-gcarlos@disroot.org
This commit is contained in:
Carlos Eduardo Gallo Filho 2023-09-26 11:15:19 -03:00 committed by Thomas Zimmermann
parent f2f455981a
commit 451921e7bb
3 changed files with 5 additions and 66 deletions
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64
drivers/gpu/drm/drm_framebuffer.c
View File

@ -151,24 +151,6 @@ int drm_mode_addfb_ioctl(struct drm_device *dev,
return drm_mode_addfb(dev, data, file_priv);
}
static int fb_plane_width(int width,
const struct drm_format_info *format, int plane)
{
if (plane == 0)
return width;
return DIV_ROUND_UP(width, format->hsub);
}
static int fb_plane_height(int height,
const struct drm_format_info *format, int plane)
{
if (plane == 0)
return height;
return DIV_ROUND_UP(height, format->vsub);
}
static int framebuffer_check(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *r)
{
@ -196,8 +178,8 @@ static int framebuffer_check(struct drm_device *dev,
info = drm_get_format_info(dev, r);
for (i = 0; i < info->num_planes; i++) {
unsigned int width = fb_plane_width(r->width, info, i);
unsigned int height = fb_plane_height(r->height, info, i);
unsigned int width = drm_format_info_plane_width(info, r->width, i);
unsigned int height = drm_format_info_plane_height(info, r->height, i);
unsigned int block_size = info->char_per_block[i];
u64 min_pitch = drm_format_info_min_pitch(info, i, width);
@ -1136,44 +1118,6 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
}
EXPORT_SYMBOL(drm_framebuffer_remove);
/**
* drm_framebuffer_plane_width - width of the plane given the first plane
* @width: width of the first plane
* @fb: the framebuffer
* @plane: plane index
*
* Returns:
* The width of @plane, given that the width of the first plane is @width.
*/
int drm_framebuffer_plane_width(int width,
const struct drm_framebuffer *fb, int plane)
{
if (plane >= fb->format->num_planes)
return 0;
return fb_plane_width(width, fb->format, plane);
}
EXPORT_SYMBOL(drm_framebuffer_plane_width);
/**
* drm_framebuffer_plane_height - height of the plane given the first plane
* @height: height of the first plane
* @fb: the framebuffer
* @plane: plane index
*
* Returns:
* The height of @plane, given that the height of the first plane is @height.
*/
int drm_framebuffer_plane_height(int height,
const struct drm_framebuffer *fb, int plane)
{
if (plane >= fb->format->num_planes)
return 0;
return fb_plane_height(height, fb->format, plane);
}
EXPORT_SYMBOL(drm_framebuffer_plane_height);
void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
const struct drm_framebuffer *fb)
{
@ -1189,8 +1133,8 @@ void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent,
for (i = 0; i < fb->format->num_planes; i++) {
drm_printf_indent(p, indent + 1, "size[%u]=%dx%d\n", i,
drm_framebuffer_plane_width(fb->width, fb, i),
drm_framebuffer_plane_height(fb->height, fb, i));
drm_format_info_plane_width(fb->format, fb->width, i),
drm_format_info_plane_height(fb->format, fb->height, i));
drm_printf_indent(p, indent + 1, "pitch[%u]=%u\n", i, fb->pitches[i]);
drm_printf_indent(p, indent + 1, "offset[%u]=%u\n", i, fb->offsets[i]);
drm_printf_indent(p, indent + 1, "obj[%u]:%s\n", i,

2
drivers/gpu/drm/i915/display/intel_fb.c
View File

@ -1117,7 +1117,7 @@ static int intel_fb_offset_to_xy(int *x, int *y,
return -EINVAL;
}
height = drm_framebuffer_plane_height(fb->height, fb, color_plane);
height = drm_format_info_plane_height(fb->format, fb->height, color_plane);
height = ALIGN(height, intel_tile_height(fb, color_plane));
/* Catch potential overflows early */

5
include/drm/drm_framebuffer.h
View File

@ -292,11 +292,6 @@ static inline void drm_framebuffer_assign(struct drm_framebuffer **p,
&fb->head != (&(dev)->mode_config.fb_list); \
fb = list_next_entry(fb, head))
int drm_framebuffer_plane_width(int width,
const struct drm_framebuffer *fb, int plane);
int drm_framebuffer_plane_height(int height,
const struct drm_framebuffer *fb, int plane);
/**
* struct drm_afbc_framebuffer - a special afbc frame buffer object
*