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authorChristoph Hellwig <hch@lst.de>2020-02-21 15:55:43 -0800
committerChristoph Hellwig <hch@lst.de>2020-03-16 10:48:09 +0100
commitfa7e2247c5729f990c7456fe09f3af99c8f2571b (patch)
tree65aa46af4ff51a93301caca46b509c34267bfe40 /arch/microblaze
parent3d0fc341c4bb66b2c41c0d1ec954a6d300e100b7 (diff)
dma-direct: make uncached_kernel_address more general
Rename the symbol to arch_dma_set_uncached, and pass a size to it as well as allow an error return. That will allow reusing this hook for in-place pagetable remapping. As the in-place remap doesn't always require an explicit cache flush, also detangle ARCH_HAS_DMA_PREP_COHERENT from ARCH_HAS_DMA_SET_UNCACHED. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/Kconfig2
-rw-r--r--arch/microblaze/mm/consistent.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 6a331bd57ea8..9606c244b5b8 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -8,7 +8,7 @@ config MICROBLAZE
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_SYNC_DMA_FOR_CPU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
- select ARCH_HAS_UNCACHED_SEGMENT if !MMU
+ select ARCH_HAS_DMA_SET_UNCACHED if !MMU
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_TABLE_SORT
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index cede7c5e8135..e09b66e43cb6 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -40,7 +40,7 @@ void arch_dma_prep_coherent(struct page *page, size_t size)
#define UNCACHED_SHADOW_MASK 0
#endif /* CONFIG_XILINX_UNCACHED_SHADOW */
-void *uncached_kernel_address(void *ptr)
+void *arch_dma_set_uncached(void *ptr, size_t size)
{
unsigned long addr = (unsigned long)ptr;