From: Dave Jiang dave.jiang@intel.com
stable inclusion from stable-v5.10.122 commit 76b226eaf0550c6acf9830ef732b6063bfeeb504 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5W6OE
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 4e5a4eb20393b851590b4465f1197a8041c2076b ]
Even though idxd driver has always supported interrupt, it never actually set the DMA_INTERRUPT cap bit. Rectify this mistake so the interrupt capability is advertised.
Reported-by: Ben Walker benjamin.walker@intel.com Signed-off-by: Dave Jiang dave.jiang@intel.com Link: https://lore.kernel.org/r/164971497859.2201379.17925303210723708961.stgit@dj... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- drivers/dma/idxd/dma.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma/idxd/dma.c b/drivers/dma/idxd/dma.c index aa7435555de9..d53ce22b4b8f 100644 --- a/drivers/dma/idxd/dma.c +++ b/drivers/dma/idxd/dma.c @@ -188,6 +188,7 @@ int idxd_register_dma_device(struct idxd_device *idxd) INIT_LIST_HEAD(&dma->channels); dma->dev = dev;
+ dma_cap_set(DMA_INTERRUPT, dma->cap_mask); dma_cap_set(DMA_PRIVATE, dma->cap_mask); dma_cap_set(DMA_COMPLETION_NO_ORDER, dma->cap_mask); dma->device_release = idxd_dma_release;