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| author |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2022-01-14 15:15:56 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2022-01-14 15:17:17 +0100 |
| commit | 71e4a7029045e3904e0e9242b4a7cd84d47b8fe5 (patch) | |
| tree | 2124889dfe07930943df0e156087566dd85a15e9 /drivers/dma-buf | |
| parent | Merge tag 'drm-misc-next-fixes-2022-01-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next (diff) | |
| parent | drm/ttm: fix compilation on ARCH=um (diff) | |
| download | wireguard-linux-71e4a7029045e3904e0e9242b4a7cd84d47b8fe5.tar.xz wireguard-linux-71e4a7029045e3904e0e9242b4a7cd84d47b8fe5.zip | |
Merge tag 'drm-misc-fixes-2022-01-14' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
Two DT bindings fixes for meson, a device refcounting fix for sun4i, a
probe fix for vga16fb, a locking fix for the CMA dma-buf heap and a
compilation fix for ttm.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: I made sure I have exactly the same conflict resolution as
Linus in 8d0749b4f83b ("Merge tag 'drm-next-2022-01-07' of
git://anongit.freedesktop.org/drm/drm") to avoid further conflict fun.
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220114125454.zs46ny52lrxk3ljz@houat
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/heaps/cma_heap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c index 0c05b79870f9..83f02bd51dda 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -124,10 +124,11 @@ static int cma_heap_dma_buf_begin_cpu_access(struct dma_buf *dmabuf, struct cma_heap_buffer *buffer = dmabuf->priv; struct dma_heap_attachment *a; + mutex_lock(&buffer->lock); + if (buffer->vmap_cnt) invalidate_kernel_vmap_range(buffer->vaddr, buffer->len); - mutex_lock(&buffer->lock); list_for_each_entry(a, &buffer->attachments, list) { if (!a->mapped) continue; @@ -144,10 +145,11 @@ static int cma_heap_dma_buf_end_cpu_access(struct dma_buf *dmabuf, struct cma_heap_buffer *buffer = dmabuf->priv; struct dma_heap_attachment *a; + mutex_lock(&buffer->lock); + if (buffer->vmap_cnt) flush_kernel_vmap_range(buffer->vaddr, buffer->len); - mutex_lock(&buffer->lock); list_for_each_entry(a, &buffer->attachments, list) { if (!a->mapped) continue; |