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Short summary of fixes pull (less than what git shortlog provides):

Browse Source 
* dma-buf: Fix docs
  * mxsfb: Silence invalid error message
  * radeon: Fix TTM multihop
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Merge tag 'drm-misc-next-fixes-2020-12-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Short summary of fixes pull (less than what git shortlog provides):

 * dma-buf: Fix docs
 * mxsfb: Silence invalid error message
 * radeon: Fix TTM multihop

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/X9i0X9mjHN9AZGD3@linux-uq9g
This commit is contained in:
Daniel Vetter 2020-12-15 17:25:55 +01:00
commit 02e66dd564
4 changed files with 33 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/driver-api/dma-buf.rst
View File

@ -190,7 +190,7 @@ DMA Fence uABI/Sync File
Indefinite DMA Fences
~~~~~~~~~~~~~~~~~~~~~
At various times &dma_fence with an indefinite time until dma_fence_wait()
At various times struct dma_fence with an indefinite time until dma_fence_wait()
finishes have been proposed. Examples include:
* Future fences, used in HWC1 to signal when a buffer isn't used by the display

10
drivers/gpu/drm/mxsfb/mxsfb_drv.c
View File

@ -134,11 +134,8 @@ static int mxsfb_attach_bridge(struct mxsfb_drm_private *mxsfb)
return -ENODEV;
ret = drm_bridge_attach(&mxsfb->encoder, bridge, NULL, 0);
if (ret) {
DRM_DEV_ERROR(drm->dev,
"failed to attach bridge: %d\n", ret);
return ret;
}
if (ret)
return dev_err_probe(drm->dev, ret, "Failed to attach bridge\n");
mxsfb->bridge = bridge;
@ -212,7 +209,8 @@ static int mxsfb_load(struct drm_device *drm,
ret = mxsfb_attach_bridge(mxsfb);
if (ret) {
dev_err(drm->dev, "Cannot connect bridge: %d\n", ret);
if (ret != -EPROBE_DEFER)
dev_err(drm->dev, "Cannot connect bridge: %d\n", ret);
goto err_vblank;
}

60
drivers/gpu/drm/radeon/radeon_ttm.c
View File

@ -217,27 +217,15 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
struct ttm_resource *old_mem = &bo->mem;
int r;
if ((old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_VRAM) ||
(old_mem->mem_type == TTM_PL_VRAM &&
new_mem->mem_type == TTM_PL_SYSTEM)) {
hop->fpfn = 0;
hop->lpfn = 0;
hop->mem_type = TTM_PL_TT;
hop->flags = 0;
return -EMULTIHOP;
}
if (new_mem->mem_type == TTM_PL_TT) {
r = radeon_ttm_tt_bind(bo->bdev, bo->ttm, new_mem);
if (r)
return r;
}
radeon_bo_move_notify(bo, evict, new_mem);
r = ttm_bo_wait_ctx(bo, ctx);
if (r)
goto fail;
return r;
/* Can't move a pinned BO */
rbo = container_of(bo, struct radeon_bo, tbo);
@ -247,12 +235,12 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
rdev = radeon_get_rdev(bo->bdev);
if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
ttm_bo_move_null(bo, new_mem);
return 0;
goto out;
}
if (old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_TT) {
ttm_bo_move_null(bo, new_mem);
return 0;
goto out;
}
if (old_mem->mem_type == TTM_PL_TT &&
@ -260,31 +248,37 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
radeon_ttm_tt_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
return 0;
goto out;
}
if (!rdev->ring[radeon_copy_ring_index(rdev)].ready ||
rdev->asic->copy.copy == NULL) {
/* use memcpy */
goto memcpy;
}
r = radeon_move_blit(bo, evict, new_mem, old_mem);
if (r) {
memcpy:
r = ttm_bo_move_memcpy(bo, ctx, new_mem);
if (r) {
goto fail;
if (rdev->ring[radeon_copy_ring_index(rdev)].ready &&
rdev->asic->copy.copy != NULL) {
if ((old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_VRAM) ||
(old_mem->mem_type == TTM_PL_VRAM &&
new_mem->mem_type == TTM_PL_SYSTEM)) {
hop->fpfn = 0;
hop->lpfn = 0;
hop->mem_type = TTM_PL_TT;
hop->flags = 0;
return -EMULTIHOP;
}
r = radeon_move_blit(bo, evict, new_mem, old_mem);
} else {
r = -ENODEV;
}
if (r) {
r = ttm_bo_move_memcpy(bo, ctx, new_mem);
if (r)
return r;
}
out:
/* update statistics */
atomic64_add((u64)bo->num_pages << PAGE_SHIFT, &rdev->num_bytes_moved);
radeon_bo_move_notify(bo, evict, new_mem);
return 0;
fail:
swap(*new_mem, bo->mem);
radeon_bo_move_notify(bo, false, new_mem);
swap(*new_mem, bo->mem);
return r;
}
static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *mem)

2
include/linux/dma-buf-map.h
View File

@ -122,7 +122,7 @@ struct dma_buf_map {
/**
* DMA_BUF_MAP_INIT_VADDR - Initializes struct dma_buf_map to an address in system memory
* @vaddr: A system-memory address
* @vaddr_: A system-memory address
*/
#define DMA_BUF_MAP_INIT_VADDR(vaddr_) \
{ \