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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-10 21:54:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-10 21:54:48 +0300
commitb7a7d1c1ec688104fdc922568c26395a756f616d (patch)
tree8059a401de91431615737b088f3da20d4567683e /arch/mips/mm/dma-noncoherent.c
parent065b6c4c913d3986c2118acb7e7fb364ce4fb625 (diff)
parent9eb9e96e97b3381e94cba81d93f4a390c26ca6cb (diff)
downloadlinux-b7a7d1c1ec688104fdc922568c26395a756f616d.tar.xz
Merge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping
Pull DMA mapping updates from Christoph Hellwig: - add debugfs support for dumping dma-debug information (Corentin Labbe) - Kconfig cleanups (Andy Shevchenko and me) - debugfs cleanups (Greg Kroah-Hartman) - improve dma_map_resource and use it in the media code - arch_setup_dma_ops / arch_teardown_dma_ops cleanups - various small cleanups and improvements for the per-device coherent allocator - make the DMA mask an upper bound and don't fail "too large" dma mask in the remaning two architectures - this will allow big driver cleanups in the following merge windows * tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping: (21 commits) Documentation/DMA-API-HOWTO: update dma_mask sections sparc64/pci_sun4v: allow large DMA masks sparc64/iommu: allow large DMA masks sparc64: refactor the ali DMA quirk ccio: allow large DMA masks dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag dma-mapping: remove dma_mark_declared_memory_occupied dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig dma-mapping: improve selection of dma_declare_coherent availability dma-mapping: remove an incorrect __iommem annotation of: select OF_RESERVED_MEM automatically device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT mfd/sm501: depend on HAS_DMA dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability dma-mapping: move debug configuration options to kernel/dma dma-debug: add dumping facility via debugfs dma: debug: no need to check return value of debugfs_create functions videobuf2: replace a layering violation with dma_map_resource dma-mapping: don't BUG when calling dma_map_resource on RAM ...
Diffstat (limited to 'arch/mips/mm/dma-noncoherent.c')
-rw-r--r--arch/mips/mm/dma-noncoherent.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c
index b57465733e87..f9549d2fbea3 100644
--- a/arch/mips/mm/dma-noncoherent.c
+++ b/arch/mips/mm/dma-noncoherent.c
@@ -156,3 +156,11 @@ void arch_dma_cache_sync(struct device *dev, void *vaddr, size_t size,
dma_sync_virt(vaddr, size, direction);
}
+
+#ifdef CONFIG_DMA_PERDEV_COHERENT
+void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
+ const struct iommu_ops *iommu, bool coherent)
+{
+ dev->dma_coherent = coherent;
+}
+#endif