diff options
| -rw-r--r-- | drivers/gpu/drm/drm_format_helper.c | 50 | ||||
| -rw-r--r-- | include/drm/drm_format_helper.h | 6 |
2 files changed, 37 insertions, 19 deletions
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 8083f5b85b3a..795d845c7e53 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -554,26 +554,45 @@ static void drm_fb_xrgb8888_to_xrgb2101010_line(void *dbuf, const void *sbuf, un } /** - * drm_fb_xrgb8888_to_xrgb2101010_toio - Convert XRGB8888 to XRGB2101010 clip - * buffer - * @dst: XRGB2101010 destination buffer (iomem) - * @dst_pitch: Number of bytes between two consecutive scanlines within dst - * @vaddr: XRGB8888 source buffer + * drm_fb_xrgb8888_to_xrgb2101010 - Convert XRGB8888 to XRGB2101010 clip buffer + * @dst: Array of XRGB2101010 destination buffers + * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines + * within @dst; can be NULL if scanlines are stored next to each other. + * @vmap: Array of XRGB8888 source buffers * @fb: DRM framebuffer * @clip: Clip rectangle area to copy * - * Drivers can use this function for XRGB2101010 devices that don't natively - * support XRGB8888. + * This function copies parts of a framebuffer to display memory and converts the + * color format during the process. Destination and framebuffer formats must match. The + * parameters @dst, @dst_pitch and @vmap refer to arrays. Each array must have at + * least as many entries as there are planes in @fb's format. Each entry stores the + * value for the format's respective color plane at the same index. + * + * This function does not apply clipping on @dst (i.e. the destination is at the + * top-left corner). + * + * Drivers can use this function for XRGB2101010 devices that don't support XRGB8888 + * natively. */ -void drm_fb_xrgb8888_to_xrgb2101010_toio(void __iomem *dst, - unsigned int dst_pitch, const void *vaddr, - const struct drm_framebuffer *fb, - const struct drm_rect *clip) +void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *dst_pitch, + const struct iosys_map *vmap, const struct drm_framebuffer *fb, + const struct drm_rect *clip) { - drm_fb_xfrm_toio(dst, dst_pitch, 4, vaddr, fb, clip, false, - drm_fb_xrgb8888_to_xrgb2101010_line); + 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) + 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); } -EXPORT_SYMBOL(drm_fb_xrgb8888_to_xrgb2101010_toio); static void drm_fb_xrgb8888_to_gray8_line(void *dbuf, const void *sbuf, unsigned int pixels) { @@ -681,8 +700,7 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t d } } else if (dst_format == DRM_FORMAT_XRGB2101010) { if (fb_format == DRM_FORMAT_XRGB8888) { - drm_fb_xrgb8888_to_xrgb2101010_toio(dst[0].vaddr_iomem, dst_pitch[0], - vmap[0].vaddr, fb, clip); + drm_fb_xrgb8888_to_xrgb2101010(dst, dst_pitch, vmap, fb, clip); return 0; } } diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 8c633dbab5d6..6807440ce29c 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -29,9 +29,9 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pitch, const struct iosys_map *vmap, const struct drm_framebuffer *fb, const struct drm_rect *clip); -void drm_fb_xrgb8888_to_xrgb2101010_toio(void __iomem *dst, unsigned int dst_pitch, - const void *vaddr, const struct drm_framebuffer *fb, - const struct drm_rect *clip); +void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *dst_pitch, + const struct iosys_map *vmap, const struct drm_framebuffer *fb, + const struct drm_rect *clip); void drm_fb_xrgb8888_to_gray8(void *dst, unsigned int dst_pitch, const void *vaddr, const struct drm_framebuffer *fb, const struct drm_rect *clip); |