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| author |   Christoph Hellwig <hch@lst.de> | 2021-06-23 16:05:05 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-08-18 16:24:11 +0200 |
| commit | 39a2d3506b2d53c569a6db13d65b2f3728c4feec (patch) | |
| tree | a28837a98a67beafc9ee020795ffc2d8efe0d107 /include/linux/dma-map-ops.h | |
| parent | dma-mapping: simplify dma_init_coherent_memory (diff) | |
| download | linux-dev-39a2d3506b2d53c569a6db13d65b2f3728c4feec.tar.xz linux-dev-39a2d3506b2d53c569a6db13d65b2f3728c4feec.zip | |
dma-mapping: add a dma_init_global_coherent helper
Add a new helper to initialize the global coherent pool. This both
cleans up the existing initialization which indirects through the
reserved_mem_ops that are normally only used for struct device, and
also allows using the global pool for non-devicetree architectures.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Dillon Min <dillon.minfei@gmail.com>
Diffstat (limited to 'include/linux/dma-map-ops.h')
| -rw-r--r-- | include/linux/dma-map-ops.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/dma-map-ops.h b/include/linux/dma-map-ops.h index 2f842498c448..068f1b11a6a4 100644 --- a/include/linux/dma-map-ops.h +++ b/include/linux/dma-map-ops.h @@ -177,7 +177,7 @@ void *dma_alloc_from_global_coherent(struct device *dev, ssize_t size, int dma_release_from_global_coherent(int order, void *vaddr); int dma_mmap_from_global_coherent(struct vm_area_struct *vma, void *cpu_addr, size_t size, int *ret); - +int dma_init_global_coherent(phys_addr_t phys_addr, size_t size); #else static inline int dma_declare_coherent_memory(struct device *dev, phys_addr_t phys_addr, dma_addr_t device_addr, size_t size) |