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drm: Nuke fb->bits_per_pixel

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Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8.
Less duplicated information is a good thing.

Note that I didn't put parens around the cpp*8 in the below cocci script,
on account of not wanting spurious parens all over the place. Instead I
did the unsafe way, and tried to look over the entire diff to spot if
any dangerous expressions were produced. I didn't see any.

There are some cases where previously the code did X*bpp/8, so the
division happened after the multiplication. Those are now just X*cpp
so the division effectively happens before the multiplication,
but that is perfectly fine since bpp is always a multiple of 8.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer FB;
expression E;
@@
(
- E * FB.bits_per_pixel / 8
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel / 8
+ FB.format->cpp[0]
|
- E * FB.bits_per_pixel >> 3
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel >> 3
+ FB.format->cpp[0]
|
- (FB.bits_per_pixel + 7) / 8
+ FB.format->cpp[0]
|
- FB.bits_per_pixel
+ FB.format->cpp[0] * 8
|
- FB.format->cpp[0] * 8 != 8
+ FB.format->cpp[0] != 1
)

@@
struct drm_framebuffer *FB;
expression E;
@@
(
- E * FB->bits_per_pixel / 8
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel / 8
+ FB->format->cpp[0]
|
- E * FB->bits_per_pixel >> 3
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel >> 3
+ FB->format->cpp[0]
|
- (FB->bits_per_pixel + 7) / 8
+ FB->format->cpp[0]
|
- FB->bits_per_pixel
+ FB->format->cpp[0] * 8
|
- FB->format->cpp[0] * 8 != 8
+ FB->format->cpp[0] != 1
)

@@
struct drm_plane_state *state;
expression E;
@@
(
- E * state->fb->bits_per_pixel / 8
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel / 8
+ state->fb->format->cpp[0]
|
- E * state->fb->bits_per_pixel >> 3
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel >> 3
+ state->fb->format->cpp[0]
|
- (state->fb->bits_per_pixel + 7) / 8
+ state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel
+ state->fb->format->cpp[0] * 8
|
- state->fb->format->cpp[0] * 8 != 8
+ state->fb->format->cpp[0] != 1
)

@@
@@
- (8 * 8)
+ 8 * 8

@@
struct drm_framebuffer FB;
@@
- (FB.format->cpp[0])
+ FB.format->cpp[0]

@@
struct drm_framebuffer *FB;
@@
- (FB->format->cpp[0])
+ FB->format->cpp[0]

@@
@@
 struct drm_framebuffer {
	 ...
-	 int bits_per_pixel;
	 ...
 };

v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent)
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2016-12-14 23:32:20 +02:00
parent b00c600e91
commit 272725c7db
44 changed files with 90 additions and 101 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/exynos/exynos5433_drm_decon.c
View File

@@ -226,7 +226,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
return;
}
DRM_DEBUG_KMS("bpp = %u\n", fb->bits_per_pixel);
DRM_DEBUG_KMS("bpp = %u\n", fb->format->cpp[0] * 8);
/*
* In case of exynos, setting dma-burst to 16Word causes permanent
@@ -275,7 +275,7 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct decon_context *ctx = crtc->ctx;
struct drm_framebuffer *fb = state->base.fb;
unsigned int win = plane->index;
unsigned int bpp = fb->bits_per_pixel >> 3;
unsigned int bpp = fb->format->cpp[0];
unsigned int pitch = fb->pitches[0];
dma_addr_t dma_addr = exynos_drm_fb_dma_addr(fb, 0);
u32 val;

6
drivers/gpu/drm/exynos/exynos7_drm_decon.c
View File

@@ -330,7 +330,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
break;
}
DRM_DEBUG_KMS("bpp = %d\n", fb->bits_per_pixel);
DRM_DEBUG_KMS("bpp = %d\n", fb->format->cpp[0] * 8);
/*
* In case of exynos, setting dma-burst to 16Word causes permanent
@@ -340,7 +340,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
* movement causes unstable DMA which results into iommu crash/tear.
*/
padding = (fb->pitches[0] / (fb->bits_per_pixel >> 3)) - fb->width;
padding = (fb->pitches[0] / fb->format->cpp[0]) - fb->width;
if (fb->width + padding < MIN_FB_WIDTH_FOR_16WORD_BURST) {
val &= ~WINCONx_BURSTLEN_MASK;
val |= WINCONx_BURSTLEN_8WORD;
@@ -407,7 +407,7 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
unsigned int last_x;
unsigned int last_y;
unsigned int win = plane->index;
unsigned int bpp = fb->bits_per_pixel >> 3;
unsigned int bpp = fb->format->cpp[0];
unsigned int pitch = fb->pitches[0];
if (ctx->suspended)

4
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
View File

@@ -76,7 +76,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
{
struct fb_info *fbi;
struct drm_framebuffer *fb = helper->fb;
unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3);
unsigned int size = fb->width * fb->height * fb->format->cpp[0];
unsigned int nr_pages;
unsigned long offset;
@@ -103,7 +103,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
return -EIO;
}
offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3);
offset = fbi->var.xoffset * fb->format->cpp[0];
offset += fbi->var.yoffset * fb->pitches[0];
fbi->screen_base = exynos_gem->kvaddr + offset;

2
drivers/gpu/drm/exynos/exynos_drm_fimd.c
View File

@@ -738,7 +738,7 @@ static void fimd_update_plane(struct exynos_drm_crtc *crtc,
unsigned long val, size, offset;
unsigned int last_x, last_y, buf_offsize, line_size;
unsigned int win = plane->index;
unsigned int bpp = fb->bits_per_pixel >> 3;
unsigned int bpp = fb->format->cpp[0];
unsigned int pitch = fb->pitches[0];
if (ctx->suspended)

4
drivers/gpu/drm/exynos/exynos_mixer.c
View File

@@ -631,7 +631,7 @@ static void mixer_graph_buffer(struct mixer_context *ctx,
/* converting dma address base and source offset */
dma_addr = exynos_drm_fb_dma_addr(fb, 0)
+ (state->src.x * fb->bits_per_pixel >> 3)
+ (state->src.x * fb->format->cpp[0])
+ (state->src.y * fb->pitches[0]);
src_x_offset = 0;
src_y_offset = 0;
@@ -649,7 +649,7 @@ static void mixer_graph_buffer(struct mixer_context *ctx,
/* setup geometry */
mixer_reg_write(res, MXR_GRAPHIC_SPAN(win),
fb->pitches[0] / (fb->bits_per_pixel >> 3));
fb->pitches[0] / fb->format->cpp[0]);
/* setup display size */
if (ctx->mxr_ver == MXR_VER_128_0_0_184 &&