On Wed, Jul 27, 2022 at 01:33:07PM +0200, Thomas Zimmermann wrote:
> Update RGB565-to-XRGB8888 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().
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Reviewed-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_format_helper.c | 25 ++++++++++++++++++-------
> 1 file changed, 18 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
> index 4edab44336d8..5ef06f696657 100644
> --- a/drivers/gpu/drm/drm_format_helper.c
> +++ b/drivers/gpu/drm/drm_format_helper.c
> @@ -430,12 +430,24 @@ static void drm_fb_rgb565_to_xrgb8888_line(void *dbuf, const void *sbuf, unsigne
> }
> }
>
> -static void drm_fb_rgb565_to_xrgb8888_toio(void __iomem *dst, unsigned int dst_pitch,
> - const void *vaddr, const struct drm_framebuffer *fb,
> - const struct drm_rect *clip)
> +static void drm_fb_rgb565_to_xrgb8888(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_rgb565_to_xrgb8888_line);
> + static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
> + 0, 0, 0, 0
> + };
> +
> + if (!dst_pitch)
> + dst_pitch = default_dst_pitch;
> +
> + 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);
> }
>
> static void drm_fb_rgb888_to_xrgb8888_line(void *dbuf, const void *sbuf, unsigned int pixels)
> @@ -600,8 +612,7 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t d
> vmap[0].vaddr, fb, clip);
> return 0;
> } else if (fb_format == DRM_FORMAT_RGB565) {
> - drm_fb_rgb565_to_xrgb8888_toio(dst[0].vaddr_iomem, dst_pitch[0],
> - vmap[0].vaddr, fb, clip);
> + drm_fb_rgb565_to_xrgb8888(dst, dst_pitch, vmap, fb, clip);
> return 0;
> }
> } else if (dst_format == DRM_FORMAT_XRGB2101010) {
> --
> 2.37.1
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