diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-08-14 12:26:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-03 11:29:34 +0200 |
| commit | 47184b9ddf184cc9a77cf441943a0fe9b7afa575 (patch) | |
| tree | 645d5ac3140ae1a9ac586668bba4b24c5ae3e965 /include | |
| parent | b960e50d61722b3bb7b7e4157ffafb7586e0ef6a (diff) | |
dma-pool: fix coherent pool allocations for IOMMU mappings
[ Upstream commit 9420139f516d7fbc248ce17f35275cb005ed98ea ]
When allocating coherent pool memory for an IOMMU mapping we don't care
about the DMA mask. Move the guess for the initial GFP mask into the
dma_direct_alloc_pages and pass dma_coherent_ok as a function pointer
argument so that it doesn't get applied to the IOMMU case.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dma-direct.h | 3 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 5 |
2 files changed, 3 insertions, 5 deletions
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h index ab2e20cba951..ba22952c24e2 100644 --- a/include/linux/dma-direct.h +++ b/include/linux/dma-direct.h @@ -67,9 +67,6 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size, } u64 dma_direct_get_required_mask(struct device *dev); -gfp_t dma_direct_optimal_gfp_mask(struct device *dev, u64 dma_mask, - u64 *phys_mask); -bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size); void *dma_direct_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs); void dma_direct_free(struct device *dev, size_t size, void *cpu_addr, diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index a33ed3954ed4..0dc08701d7b7 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -715,8 +715,9 @@ void *dma_common_pages_remap(struct page **pages, size_t size, pgprot_t prot, const void *caller); void dma_common_free_remap(void *cpu_addr, size_t size); -void *dma_alloc_from_pool(struct device *dev, size_t size, - struct page **ret_page, gfp_t flags); +struct page *dma_alloc_from_pool(struct device *dev, size_t size, + void **cpu_addr, gfp_t flags, + bool (*phys_addr_ok)(struct device *, phys_addr_t, size_t)); bool dma_free_from_pool(struct device *dev, void *start, size_t size); int |