The format-convertion helpers handle several cases for different
values of destination buffer and pitch. Move that code into the
internal helper drm_fb_xfrm() and avoid quite a bit of duplication.
v2:
* remove a duplicated blank line (Jose)
* use drm_format_info_bpp() (Sam)
* fix vaddr_cached_hint bug (Sam)
* add TODO on vaddr location (Sam)
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/drm_format_helper.c | 174 ++++++++++------------------
1 file changed, 63 insertions(+), 111 deletions(-)
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index 53a313f83dc2..0fec3b68db95 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -41,11 +41,11 @@ unsigned int drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info
}
EXPORT_SYMBOL(drm_fb_clip_offset);
-/* TODO: Make this functon work with multi-plane formats. */
-static int drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pixsize,
- const void *vaddr, const struct drm_framebuffer *fb,
- const struct drm_rect *clip, bool vaddr_cached_hint,
- void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels))
+/* TODO: Make this function work with multi-plane formats. */
+static int __drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pixsize,
+ const void *vaddr, const struct drm_framebuffer *fb,
+ const struct drm_rect *clip, bool vaddr_cached_hint,
+ void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels))
{
unsigned long linepixels = drm_rect_width(clip);
unsigned long lines = drm_rect_height(clip);
@@ -84,11 +84,11 @@ static int drm_fb_xfrm(void *dst, unsigned long dst_pitch, unsigned long dst_pix
return 0;
}
-/* TODO: Make this functon work with multi-plane formats. */
-static int drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned long dst_pixsize,
- const void *vaddr, const struct drm_framebuffer *fb,
- const struct drm_rect *clip, bool vaddr_cached_hint,
- void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels))
+/* TODO: Make this function work with multi-plane formats. */
+static int __drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned long dst_pixsize,
+ const void *vaddr, const struct drm_framebuffer *fb,
+ const struct drm_rect *clip, bool vaddr_cached_hint,
+ void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels))
{
unsigned long linepixels = drm_rect_width(clip);
unsigned long lines = drm_rect_height(clip);
@@ -129,6 +129,29 @@ static int drm_fb_xfrm_toio(void __iomem *dst, unsigned long dst_pitch, unsigned
return 0;
}
+/* TODO: Make this function work with multi-plane formats. */
+static int drm_fb_xfrm(struct iosys_map *dst,
+ const unsigned int *dst_pitch, const u8 *dst_pixsize,
+ const struct iosys_map *vmap, const struct drm_framebuffer *fb,
+ const struct drm_rect *clip, bool vaddr_cached_hint,
+ void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels))
+{
+ static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
+ 0, 0, 0, 0
+ };
+
+ if (!dst_pitch)
+ dst_pitch = default_dst_pitch;
+
+ /* TODO: handle vmap in I/O memory here */
+ if (dst[0].is_iomem)
+ return __drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], dst_pixsize[0],
+ vmap[0].vaddr, fb, clip, vaddr_cached_hint, xfrm_line);
+ else
+ return __drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], dst_pixsize[0],
+ vmap[0].vaddr, fb, clip, vaddr_cached_hint, xfrm_line);
+}
+
/**
* drm_fb_memcpy - Copy clip buffer
* @dst: Array of destination buffers
@@ -228,9 +251,6 @@ void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch,
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip, bool cached)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
- };
const struct drm_format_info *format = fb->format;
u8 cpp = DIV_ROUND_UP(drm_format_info_bpp(format, 0), 8);
void (*swab_line)(void *dbuf, const void *sbuf, unsigned int npixels);
@@ -245,22 +265,10 @@ void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch,
default:
drm_warn_once(fb->dev, "Format %p4cc has unsupported pixel size.\n",
&format->format);
- swab_line = NULL;
- break;
- }
- if (!swab_line)
return;
+ }
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst->is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], cpp,
- vmap[0].vaddr, fb, clip, cached, swab_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], cpp, vmap[0].vaddr, fb,
- clip, cached, swab_line);
+ drm_fb_xfrm(dst, dst_pitch, &cpp, vmap, fb, clip, cached, swab_line);
}
EXPORT_SYMBOL(drm_fb_swab);
@@ -303,20 +311,12 @@ void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pi
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 1,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 1, vmap[0].vaddr, fb, clip,
- false, drm_fb_xrgb8888_to_rgb332_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 1, vmap[0].vaddr, fb, clip,
- false, drm_fb_xrgb8888_to_rgb332_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_xrgb8888_to_rgb332_line);
}
EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332);
@@ -380,9 +380,10 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip, bool swab)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 2,
};
+
void (*xfrm_line)(void *dbuf, const void *sbuf, unsigned int npixels);
if (swab)
@@ -390,16 +391,7 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi
else
xfrm_line = drm_fb_xrgb8888_to_rgb565_line;
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 2, vmap[0].vaddr, fb, clip,
- false, xfrm_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 2, vmap[0].vaddr, fb, clip,
- false, xfrm_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false, xfrm_line);
}
EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb565);
@@ -443,20 +435,12 @@ void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pi
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 3,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 3, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_rgb888_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 3, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_rgb888_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_xrgb8888_to_rgb888_line);
}
EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb888);
@@ -483,20 +467,12 @@ static void drm_fb_rgb565_to_xrgb8888(struct iosys_map *dst, const unsigned int
const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 4,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_rgb565_to_xrgb8888_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_rgb565_to_xrgb8888_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_rgb565_to_xrgb8888_line);
}
static void drm_fb_rgb888_to_xrgb8888_line(void *dbuf, const void *sbuf, unsigned int pixels)
@@ -519,20 +495,12 @@ static void drm_fb_rgb888_to_xrgb8888(struct iosys_map *dst, const unsigned int
const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 4,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_rgb888_to_xrgb8888_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_rgb888_to_xrgb8888_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_rgb888_to_xrgb8888_line);
}
static void drm_fb_xrgb8888_to_xrgb2101010_line(void *dbuf, const void *sbuf, unsigned int pixels)
@@ -578,20 +546,12 @@ void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *d
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 4,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_xrgb2101010_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 4, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_xrgb2101010_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_xrgb8888_to_xrgb2101010_line);
}
static void drm_fb_xrgb8888_to_gray8_line(void *dbuf, const void *sbuf, unsigned int pixels)
@@ -640,20 +600,12 @@ void drm_fb_xrgb8888_to_gray8(struct iosys_map *dst, const unsigned int *dst_pit
const struct iosys_map *vmap, const struct drm_framebuffer *fb,
const struct drm_rect *clip)
{
- static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
- 0, 0, 0, 0
+ static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = {
+ 1,
};
- if (!dst_pitch)
- dst_pitch = default_dst_pitch;
-
- /* TODO: handle vmap in I/O memory here */
- if (dst[0].is_iomem)
- drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 1, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_gray8_line);
- else
- drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 1, vmap[0].vaddr, fb,
- clip, false, drm_fb_xrgb8888_to_gray8_line);
+ drm_fb_xfrm(dst, dst_pitch, dst_pixsize, vmap, fb, clip, false,
+ drm_fb_xrgb8888_to_gray8_line);
}
EXPORT_SYMBOL(drm_fb_xrgb8888_to_gray8);
--
2.37.1
