diff options
| author |   Lucas Stach <l.stach@pengutronix.de> | 2017-02-24 14:58:44 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 17:46:55 -0800 |
| commit | 712c604dcdf8186295e2af694adf52c6842ad100 (patch) | |
| tree | 4b2dbb4c4c6124a083d8a9ba039fcd664ac7c14a /drivers | |
| parent | mm: cma_alloc: allow to specify GFP mask (diff) | |
| download | linux-dev-712c604dcdf8186295e2af694adf52c6842ad100.tar.xz linux-dev-712c604dcdf8186295e2af694adf52c6842ad100.zip | |
mm: wire up GFP flag passing in dma_alloc_from_contiguous
The callers of the DMA alloc functions already provide the proper
context GFP flags. Make sure to pass them through to the CMA allocator,
to make the CMA compaction context aware.
Link: http://lkml.kernel.org/r/20170127172328.18574-3-l.stach@pengutronix.de
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alexander Graf <agraf@suse.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/dma-contiguous.c | 5 | ||||
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 2 |
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index d1a9cbabc627..b55804cac4c4 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -181,6 +181,7 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base, * @dev: Pointer to device for which the allocation is performed. * @count: Requested number of pages. * @align: Requested alignment of pages (in PAGE_SIZE order). + * @gfp_mask: GFP flags to use for this allocation. * * This function allocates memory buffer for specified device. It uses * device specific contiguous memory area if available or the default @@ -188,12 +189,12 @@ int __init dma_contiguous_reserve_area(phys_addr_t size, phys_addr_t base, * function. */ struct page *dma_alloc_from_contiguous(struct device *dev, size_t count, - unsigned int align) + unsigned int align, gfp_t gfp_mask) { if (align > CONFIG_CMA_ALIGNMENT) align = CONFIG_CMA_ALIGNMENT; - return cma_alloc(dev_get_cma_area(dev), count, align, GFP_KERNEL); + return cma_alloc(dev_get_cma_area(dev), count, align, gfp_mask); } /** diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 1b5b8c5361c5..09bd3b290bb8 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2672,7 +2672,7 @@ static void *alloc_coherent(struct device *dev, size_t size, return NULL; page = dma_alloc_from_contiguous(dev, size >> PAGE_SHIFT, - get_order(size)); + get_order(size), flag); if (!page) return NULL; } diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index f5e02f8e7371..a8f7ae0eb7a4 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3829,7 +3829,7 @@ static void *intel_alloc_coherent(struct device *dev, size_t size, if (gfpflags_allow_blocking(flags)) { unsigned int count = size >> PAGE_SHIFT; - page = dma_alloc_from_contiguous(dev, count, order); + page = dma_alloc_from_contiguous(dev, count, order, flags); if (page && iommu_no_mapping(dev) && page_to_phys(page) + size > dev->coherent_dma_mask) { dma_release_from_contiguous(dev, page, count); |