Pass the data parameter to drm_gem_fb_vmap() to retrieve pointers
to the data. This address is different from the mapping addresses
for framebuffers with non-zero offsets. Replaces gud's internal
computation.
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
drivers/gpu/drm/gud/gud_pipe.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c
index 6270a1a32a65..b9b0e435ea0f 100644
--- a/drivers/gpu/drm/gud/gud_pipe.c
+++ b/drivers/gpu/drm/gud/gud_pipe.c
@@ -153,6 +153,7 @@ static int gud_prep_flush(struct gud_device *gdrm, struct
drm_framebuffer *fb,
struct dma_buf_attachment *import_attach = fb->obj[0]->import_attach;
u8 compression = gdrm->compression;
struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
+ struct dma_buf_map map_data[DRM_FORMAT_MAX_PLANES];
void *vaddr, *buf;
size_t pitch, len;
int ret = 0;
@@ -162,11 +163,11 @@ static int gud_prep_flush(struct gud_device *gdrm, struct
drm_framebuffer *fb,
if (len > gdrm->bulk_len)
return -E2BIG;
- ret = drm_gem_fb_vmap(fb, map, NULL);
+ ret = drm_gem_fb_vmap(fb, map, map_data);
if (ret)
return ret;
- vaddr = map[0].vaddr + fb->offsets[0];
+ vaddr = map_data[0].vaddr;
ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
if (ret)
--
2.32.0
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