Update XRGB8888-to-XRGB2101010 conversion to support struct iosys_map
and convert all users. Although these are single-plane color formats,
the new interface supports multi-plane formats for consistency with
drm_fb_blit().
v2:
* update documentation (Sam)
* add TODO on vaddr location (Sam)
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
drivers/gpu/drm/drm_format_helper.c | 50 ++++++++++++++++++++---------
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);
--
2.37.1
