diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 07:50:02 +0300 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 07:50:02 +0300 |
commit | e34bac726d27056081d0250c0e173e4b155aa340 (patch) | |
tree | 85607d0b3b185380fb3267866020c6a4372b9298 /arch/m32r/include/asm/dma-mapping.h | |
parent | fe6bce8d30a86c693bf7cfbf4759cbafd121289f (diff) | |
parent | 39a0e975c37dee93fa1b8ea5f7eacd1c4c8a586e (diff) | |
download | linux-e34bac726d27056081d0250c0e173e4b155aa340.tar.xz |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
- various misc bits
- most of MM (quite a lot of MM material is awaiting the merge of
linux-next dependencies)
- kasan
- printk updates
- procfs updates
- MAINTAINERS
- /lib updates
- checkpatch updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (123 commits)
init: reduce rootwait polling interval time to 5ms
binfmt_elf: use vmalloc() for allocation of vma_filesz
checkpatch: don't emit unified-diff error for rename-only patches
checkpatch: don't check c99 types like uint8_t under tools
checkpatch: avoid multiple line dereferences
checkpatch: don't check .pl files, improve absolute path commit log test
scripts/checkpatch.pl: fix spelling
checkpatch: don't try to get maintained status when --no-tree is given
lib/ida: document locking requirements a bit better
lib/rbtree.c: fix typo in comment of ____rb_erase_color
lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM
MAINTAINERS: add drm and drm/i915 irc channels
MAINTAINERS: add "C:" for URI for chat where developers hang out
MAINTAINERS: add drm and drm/i915 bug filing info
MAINTAINERS: add "B:" for URI where to file bugs
get_maintainer: look for arbitrary letter prefixes in sections
printk: add Kconfig option to set default console loglevel
printk/sound: handle more message headers
printk/btrfs: handle more message headers
printk/kdb: handle more message headers
...
Diffstat (limited to 'arch/m32r/include/asm/dma-mapping.h')
-rw-r--r-- | arch/m32r/include/asm/dma-mapping.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h new file mode 100644 index 000000000000..2c43a77fe942 --- /dev/null +++ b/arch/m32r/include/asm/dma-mapping.h @@ -0,0 +1,32 @@ +#ifndef _ASM_M32R_DMA_MAPPING_H +#define _ASM_M32R_DMA_MAPPING_H + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/scatterlist.h> +#include <linux/dma-debug.h> +#include <linux/io.h> + +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +static inline struct dma_map_ops *get_dma_ops(struct device *dev) +{ + if (dev && dev->archdata.dma_ops) + return dev->archdata.dma_ops; + return &dma_noop_ops; +} + +static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction direction) +{ +} + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + if (!dev->dma_mask) + return false; + return addr + size - 1 <= *dev->dma_mask; +} + +#endif /* _ASM_M32R_DMA_MAPPING_H */ |