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authorIngo Molnar <mingo@kernel.org>2016-10-16 11:31:39 +0200
committerIngo Molnar <mingo@kernel.org>2016-10-16 11:31:39 +0200
commit1d33369db25eb7f37b7a8bd22d736888b4501a9c (patch)
tree116d764339be1bca928870151decbedc53a9e1d1 /arch/mips/include/asm/dma-coherence.h
parent23446cb66c073b827779e5eb3dec301623299b32 (diff)
parent1001354ca34179f3db924eb66672442a173147dc (diff)
downloadtalos-obmc-linux-1d33369db25eb7f37b7a8bd22d736888b4501a9c.tar.gz
talos-obmc-linux-1d33369db25eb7f37b7a8bd22d736888b4501a9c.zip
Merge tag 'v4.9-rc1' into x86/urgent, to pick up updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/include/asm/dma-coherence.h')
-rw-r--r--arch/mips/include/asm/dma-coherence.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/mips/include/asm/dma-coherence.h b/arch/mips/include/asm/dma-coherence.h
index bc5e85d579e6..72d0eab02afc 100644
--- a/arch/mips/include/asm/dma-coherence.h
+++ b/arch/mips/include/asm/dma-coherence.h
@@ -9,14 +9,22 @@
#ifndef __ASM_DMA_COHERENCE_H
#define __ASM_DMA_COHERENCE_H
-#ifdef CONFIG_DMA_MAYBE_COHERENT
-extern int coherentio;
+enum coherent_io_user_state {
+ IO_COHERENCE_DEFAULT,
+ IO_COHERENCE_ENABLED,
+ IO_COHERENCE_DISABLED,
+};
+
+#if defined(CONFIG_DMA_PERDEV_COHERENT)
+/* Don't provide (hw_)coherentio to avoid misuse */
+#elif defined(CONFIG_DMA_MAYBE_COHERENT)
+extern enum coherent_io_user_state coherentio;
extern int hw_coherentio;
#else
#ifdef CONFIG_DMA_COHERENT
-#define coherentio 1
+#define coherentio IO_COHERENCE_ENABLED
#else
-#define coherentio 0
+#define coherentio IO_COHERENCE_DISABLED
#endif
#define hw_coherentio 0
#endif /* CONFIG_DMA_MAYBE_COHERENT */
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