diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-06-15 13:08:45 +0200 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-06-24 18:26:04 +0200 |
| commit | aa4db775959a65ddbb4a5b2c886cc520614abb81 (patch) | |
| tree | 951318dbeb6c274e2dc9656f146c7d0d6eb83fc0 /arch/mips | |
| parent | MIPS: IP27: use dma_direct_ops (diff) | |
| download | linux-aa4db775959a65ddbb4a5b2c886cc520614abb81.tar.xz linux-aa4db775959a65ddbb4a5b2c886cc520614abb81.zip | |
MIPS: move coherentio setup to setup.c
We want to be able to use it even when not building dma-default.c
in the near future.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Patchwork: https://patchwork.linux-mips.org/patch/19543/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: iommu@lists.linux-foundation.org
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kernel/setup.c | 24 | ||||
| -rw-r--r-- | arch/mips/mm/dma-default.c | 23 |
2 files changed, 24 insertions, 23 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 2c96c0c68116..3d4524309b5c 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -36,6 +36,7 @@ #include <asm/cdmm.h> #include <asm/cpu.h> #include <asm/debug.h> +#include <asm/dma-coherence.h> #include <asm/sections.h> #include <asm/setup.h> #include <asm/smp-ops.h> @@ -1055,3 +1056,26 @@ static int __init debugfs_mips(void) } arch_initcall(debugfs_mips); #endif + +#if defined(CONFIG_DMA_MAYBE_COHERENT) && !defined(CONFIG_DMA_PERDEV_COHERENT) +/* User defined DMA coherency from command line. */ +enum coherent_io_user_state coherentio = IO_COHERENCE_DEFAULT; +EXPORT_SYMBOL_GPL(coherentio); +int hw_coherentio = 0; /* Actual hardware supported DMA coherency setting. */ + +static int __init setcoherentio(char *str) +{ + coherentio = IO_COHERENCE_ENABLED; + pr_info("Hardware DMA cache coherency (command line)\n"); + return 0; +} +early_param("coherentio", setcoherentio); + +static int __init setnocoherentio(char *str) +{ + coherentio = IO_COHERENCE_DISABLED; + pr_info("Software DMA cache coherency (command line)\n"); + return 0; +} +early_param("nocoherentio", setnocoherentio); +#endif diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 2db6c2a6f964..10b56e8a2076 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -24,29 +24,6 @@ #include <dma-coherence.h> -#if defined(CONFIG_DMA_MAYBE_COHERENT) && !defined(CONFIG_DMA_PERDEV_COHERENT) -/* User defined DMA coherency from command line. */ -enum coherent_io_user_state coherentio = IO_COHERENCE_DEFAULT; -EXPORT_SYMBOL_GPL(coherentio); -int hw_coherentio = 0; /* Actual hardware supported DMA coherency setting. */ - -static int __init setcoherentio(char *str) -{ - coherentio = IO_COHERENCE_ENABLED; - pr_info("Hardware DMA cache coherency (command line)\n"); - return 0; -} -early_param("coherentio", setcoherentio); - -static int __init setnocoherentio(char *str) -{ - coherentio = IO_COHERENCE_DISABLED; - pr_info("Software DMA cache coherency (command line)\n"); - return 0; -} -early_param("nocoherentio", setnocoherentio); -#endif - static inline struct page *dma_addr_to_page(struct device *dev, dma_addr_t dma_addr) { |