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Groups > linux.kernel > #1720860

[PATCH 02/12] mips: don't use dma_cache_sync to implement fd_cacheflush

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The floppy drivers doesn't otherwise use the DMA API, so indirecting
through it just for cache flushing in MIPS-specific code just call
dma_cache_wback_inv directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/include/asm/floppy.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h
index d75aed36480a..021d09ae5670 100644
--- a/arch/mips/include/asm/floppy.h
+++ b/arch/mips/include/asm/floppy.h
@@ -10,11 +10,11 @@
 #ifndef _ASM_FLOPPY_H
 #define _ASM_FLOPPY_H
 
-#include <linux/dma-mapping.h>
+#include <asm/io.h>
 
 static inline void fd_cacheflush(char * addr, long size)
 {
-	dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL);
+	dma_cache_wback_inv((unsigned long)addr, size);
 }
 
 #define MAX_BUFFER_SECTORS 24
-- 
2.11.0

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Thread

refactor dma_cache_sync Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 06/12] microblaze: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 02/12] mips: don't use dma_cache_sync to implement fd_cacheflush Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 05/12] ia64: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 07/12] mn10300: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 11/12] sh: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 09/12] unicore32: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 10/12] xtensa: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 08/12] powerpc: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 01/12] floppy: consolidate the dummy fd_cacheflush definition Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 03/12] frv: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
  [PATCH 12/12] dma-mapping: turn dma_cache_sync into a dma_map_ops method Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
    Re: [PATCH 12/12] dma-mapping: turn dma_cache_sync into a dma_map_ops method Geert Uytterhoeven <geert@linux-m68k.org> - 2017-08-28 08:30 +0200
  [PATCH 04/12] x86: make dma_cache_sync a no-op Christoph Hellwig <hch@lst.de> - 2017-08-27 18:20 +0200
    Re: [PATCH 04/12] x86: make dma_cache_sync a no-op Thomas Gleixner <tglx@linutronix.de> - 2017-08-31 16:10 +0200

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