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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/kernel/setup.c
parent3440caf5f28c4e4a585dd5a7cead1b7c414973da (diff)
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/kernel/setup.c')
-rw-r--r--arch/mips/kernel/setup.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 9a761ba36b6e..6008f45ad081 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -803,14 +803,12 @@ arch_initcall(debugfs_mips);
#endif
#ifdef CONFIG_DMA_MAYBE_COHERENT
-/* User defined DMA coherency from command line. */
-enum coherent_io_user_state coherentio = IO_COHERENCE_DEFAULT;
-EXPORT_SYMBOL_GPL(coherentio);
-int hw_coherentio; /* Actual hardware supported DMA coherency setting. */
+bool dma_default_coherent;
+EXPORT_SYMBOL_GPL(dma_default_coherent);
static int __init setcoherentio(char *str)
{
- coherentio = IO_COHERENCE_ENABLED;
+ dma_default_coherent = true;
pr_info("Hardware DMA cache coherency (command line)\n");
return 0;
}
@@ -818,7 +816,7 @@ early_param("coherentio", setcoherentio);
static int __init setnocoherentio(char *str)
{
- coherentio = IO_COHERENCE_DISABLED;
+ dma_default_coherent = true;
pr_info("Software DMA cache coherency (command line)\n");
return 0;
}