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authorChristoph Hellwig <hch@lst.de>2021-02-10 10:56:38 +0100
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2021-02-13 09:51:45 +0100
commit14ac09a65e19528ca05df56f8e36a4a8d4949795 (patch)
tree87df70b91b37c256417ee8063edec8d82a635dd2 /arch/mips/mm/c-r4k.c
parentMIPS/alchemy: factor out the DMA coherent setup (diff)
downloadlinux-14ac09a65e19528ca05df56f8e36a4a8d4949795.tar.xz
linux-14ac09a65e19528ca05df56f8e36a4a8d4949795.zip
MIPS: refactor the runtime coherent vs noncoherent DMA indicators
Replace the global coherentio enum, and the hw_coherentio (fake) boolean variables with a single boolean dma_default_coherent flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/mm/c-r4k.c')
-rw-r--r--arch/mips/mm/c-r4k.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 7b2396249779..bbfab94194b9 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1914,15 +1914,11 @@ void r4k_cache_init(void)
__local_flush_icache_user_range = local_r4k_flush_icache_user_range;
#ifdef CONFIG_DMA_NONCOHERENT
-#ifdef CONFIG_DMA_MAYBE_COHERENT
- if (coherentio == IO_COHERENCE_ENABLED ||
- (coherentio == IO_COHERENCE_DEFAULT && hw_coherentio)) {
+ if (dma_default_coherent) {
_dma_cache_wback_inv = (void *)cache_noop;
_dma_cache_wback = (void *)cache_noop;
_dma_cache_inv = (void *)cache_noop;
- } else
-#endif /* CONFIG_DMA_MAYBE_COHERENT */
- {
+ } else {
_dma_cache_wback_inv = r4k_dma_cache_wback_inv;
_dma_cache_wback = r4k_dma_cache_wback_inv;
_dma_cache_inv = r4k_dma_cache_inv;