diff options
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 23c1a7eebb06..fde16c5b0a70 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c | |||
| @@ -1307,16 +1307,6 @@ static void domain_flush_complete(struct protection_domain *domain) | |||
| 1307 | } | 1307 | } |
| 1308 | } | 1308 | } |
| 1309 | 1309 | ||
| 1310 | /* Flush the not present cache if it exists */ | ||
| 1311 | static void domain_flush_np_cache(struct protection_domain *domain, | ||
| 1312 | dma_addr_t iova, size_t size) | ||
| 1313 | { | ||
| 1314 | if (unlikely(amd_iommu_np_cache)) { | ||
| 1315 | domain_flush_pages(domain, iova, size); | ||
| 1316 | domain_flush_complete(domain); | ||
| 1317 | } | ||
| 1318 | } | ||
| 1319 | |||
| 1320 | 1310 | ||
| 1321 | /* | 1311 | /* |
| 1322 | * This function flushes the DTEs for all devices in domain | 1312 | * This function flushes the DTEs for all devices in domain |
| @@ -2399,7 +2389,10 @@ static dma_addr_t __map_single(struct device *dev, | |||
| 2399 | } | 2389 | } |
| 2400 | address += offset; | 2390 | address += offset; |
| 2401 | 2391 | ||
| 2402 | domain_flush_np_cache(&dma_dom->domain, address, size); | 2392 | if (unlikely(amd_iommu_np_cache)) { |
| 2393 | domain_flush_pages(&dma_dom->domain, address, size); | ||
| 2394 | domain_flush_complete(&dma_dom->domain); | ||
| 2395 | } | ||
| 2403 | 2396 | ||
| 2404 | out: | 2397 | out: |
| 2405 | return address; | 2398 | return address; |
| @@ -2578,8 +2571,6 @@ static int map_sg(struct device *dev, struct scatterlist *sglist, | |||
| 2578 | s->dma_length = s->length; | 2571 | s->dma_length = s->length; |
| 2579 | } | 2572 | } |
| 2580 | 2573 | ||
| 2581 | domain_flush_np_cache(domain, s->dma_address, s->dma_length); | ||
| 2582 | |||
| 2583 | return nelems; | 2574 | return nelems; |
| 2584 | 2575 | ||
| 2585 | out_unmap: | 2576 | out_unmap: |
| @@ -3060,8 +3051,6 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova, | |||
| 3060 | ret = iommu_map_page(domain, iova, paddr, page_size, prot, GFP_KERNEL); | 3051 | ret = iommu_map_page(domain, iova, paddr, page_size, prot, GFP_KERNEL); |
| 3061 | mutex_unlock(&domain->api_lock); | 3052 | mutex_unlock(&domain->api_lock); |
| 3062 | 3053 | ||
| 3063 | domain_flush_np_cache(domain, iova, page_size); | ||
| 3064 | |||
| 3065 | return ret; | 3054 | return ret; |
| 3066 | } | 3055 | } |
| 3067 | 3056 | ||
