[PATCH v4 06/13] drm/cirrus: Use drm_gem_shmem_vmap_local() in damage handling
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2021-01-08 09:45:26
Also in:
dri-devel, linux-media
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Damage handling in cirrus requires a short-term mapping of the source BO. Use drm_gem_shmem_vmap_local(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/tiny/cirrus.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index a043e602199e..21cd7056d45f 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c@@ -315,6 +315,7 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, struct drm_rect *rect) { struct cirrus_device *cirrus = to_cirrus(fb->dev); + struct drm_gem_object *obj = fb->obj[0]; struct dma_buf_map map; void *vmap; int idx, ret;
@@ -323,9 +324,12 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, if (!drm_dev_enter(&cirrus->dev, &idx)) goto out; - ret = drm_gem_shmem_vmap(fb->obj[0], &map); + ret = dma_resv_lock(obj->resv, NULL); if (ret) goto out_dev_exit; + ret = drm_gem_shmem_vmap_local(fb->obj[0], &map); + if (ret) + goto out_dma_resv_unlock; vmap = map.vaddr; /* TODO: Use mapping abstraction properly */ if (cirrus->cpp == fb->format->cpp[0])
@@ -345,9 +349,11 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, else WARN_ON_ONCE("cpp mismatch"); - drm_gem_shmem_vunmap(fb->obj[0], &map); ret = 0; + drm_gem_shmem_vunmap_local(obj, &map); +out_dma_resv_unlock: + dma_resv_unlock(obj->resv); out_dev_exit: drm_dev_exit(idx); out:
--
2.29.2
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