[PATCH 4/5] drm/gud: Map framebuffer BOs with drm_gem_fb_vmap()

[Thomas Zimmermann]

Abstract the framebuffer details by mapping its BOs with a call
to drm_gem_fb_vmap(). Unmap with drm_gem_fb_vunmap().

The call to drm_gem_fb_vmap() ensures that all BOs are mapped
correctly. Gud still only supports single-plane formats.

No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/gud/gud_pipe.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c
index 8f56bf618ac2..8243c8682366 100644
--- a/drivers/gpu/drm/gud/gud_pipe.c
+++ b/drivers/gpu/drm/gud/gud_pipe.c
@@ -15,7 +15,8 @@
 #include <drm/drm_format_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
-#include <drm/drm_gem_shmem_helper.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_print.h>
 #include <drm/drm_rect.h>
 #include <drm/drm_simple_kms_helper.h>
@@ -152,7 +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;
+	struct dma_buf_map map[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_shmem_vmap(fb->obj[0], &map);
+	ret = drm_gem_fb_vmap(fb, map);
 	if (ret)
 		return ret;
 
-	vaddr = map.vaddr + fb->offsets[0];
+	vaddr = map[0].vaddr + fb->offsets[0];
 
 	if (import_attach) {
 		ret = dma_buf_begin_cpu_access(import_attach->dmabuf, DMA_FROM_DEVICE);
@@ -228,7 +229,7 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
 	if (import_attach)
 		dma_buf_end_cpu_access(import_attach->dmabuf, DMA_FROM_DEVICE);
 vunmap:
-	drm_gem_shmem_vunmap(fb->obj[0], &map);
+	drm_gem_fb_vunmap(fb, map);
 
 	return ret;
 }
-- 
2.32.0