[PATCH v4 08/13] drm/udl: 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 driver for usb displaylink video adapters, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Dave Airlie, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Damage handling in udl 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/udl/udl_modeset.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 9d34ec9d03f6..46b55b4d03c2 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/drivers/gpu/drm/udl/udl_modeset.c@@ -290,14 +290,18 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y, else if ((clip.x2 > fb->width) || (clip.y2 > fb->height)) return -EINVAL; + ret = dma_resv_lock(fb->obj[0]->resv, NULL); + if (ret) + return ret; + if (import_attach) { ret = dma_buf_begin_cpu_access(import_attach->dmabuf, DMA_FROM_DEVICE); if (ret) - return ret; + goto out_dma_resv_unlock; } - ret = drm_gem_shmem_vmap(fb->obj[0], &map); + ret = drm_gem_shmem_vmap_local(fb->obj[0], &map); if (ret) { DRM_ERROR("failed to vmap fb\n"); goto out_dma_buf_end_cpu_access;
@@ -307,7 +311,7 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y, urb = udl_get_urb(dev); if (!urb) { ret = -ENOMEM; - goto out_drm_gem_shmem_vunmap; + goto out_drm_gem_shmem_vunmap_local; } cmd = urb->transfer_buffer;
@@ -320,7 +324,7 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y, &cmd, byte_offset, dev_byte_offset, byte_width); if (ret) - goto out_drm_gem_shmem_vunmap; + goto out_drm_gem_shmem_vunmap_local; } if (cmd > (char *)urb->transfer_buffer) {
@@ -336,8 +340,8 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y, ret = 0; -out_drm_gem_shmem_vunmap: - drm_gem_shmem_vunmap(fb->obj[0], &map); +out_drm_gem_shmem_vunmap_local: + drm_gem_shmem_vunmap_local(fb->obj[0], &map); out_dma_buf_end_cpu_access: if (import_attach) { tmp_ret = dma_buf_end_cpu_access(import_attach->dmabuf,
@@ -345,6 +349,8 @@ static int udl_handle_damage(struct drm_framebuffer *fb, int x, int y, if (tmp_ret && !ret) ret = tmp_ret; /* only update ret if not set yet */ } +out_dma_resv_unlock: + dma_resv_unlock(fb->obj[0]->resv); return ret; }
--
2.29.2
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