diff options
author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:07:53 +0000 |
commit | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch) | |
tree | bc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/contrib/include/linux/dma-attrs.h | |
parent | 21adb5284111190057db245cfc2b54091920c373 (diff) |
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/contrib/include/linux/dma-attrs.h')
-rw-r--r-- | libdde_linux26/contrib/include/linux/dma-attrs.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/libdde_linux26/contrib/include/linux/dma-attrs.h b/libdde_linux26/contrib/include/linux/dma-attrs.h deleted file mode 100644 index 71ad34ec..00000000 --- a/libdde_linux26/contrib/include/linux/dma-attrs.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef _DMA_ATTR_H -#define _DMA_ATTR_H - -#include <linux/bitmap.h> -#include <linux/bitops.h> -#include <linux/bug.h> - -/** - * an enum dma_attr represents an attribute associated with a DMA - * mapping. The semantics of each attribute should be defined in - * Documentation/DMA-attributes.txt. - */ -enum dma_attr { - DMA_ATTR_WRITE_BARRIER, - DMA_ATTR_WEAK_ORDERING, - DMA_ATTR_MAX, -}; - -#define __DMA_ATTRS_LONGS BITS_TO_LONGS(DMA_ATTR_MAX) - -/** - * struct dma_attrs - an opaque container for DMA attributes - * @flags - bitmask representing a collection of enum dma_attr - */ -struct dma_attrs { - unsigned long flags[__DMA_ATTRS_LONGS]; -}; - -#define DEFINE_DMA_ATTRS(x) \ - struct dma_attrs x = { \ - .flags = { [0 ... __DMA_ATTRS_LONGS-1] = 0 }, \ - } - -static inline void init_dma_attrs(struct dma_attrs *attrs) -{ - bitmap_zero(attrs->flags, __DMA_ATTRS_LONGS); -} - -#ifdef CONFIG_HAVE_DMA_ATTRS -/** - * dma_set_attr - set a specific attribute - * @attr: attribute to set - * @attrs: struct dma_attrs (may be NULL) - */ -static inline void dma_set_attr(enum dma_attr attr, struct dma_attrs *attrs) -{ - if (attrs == NULL) - return; - BUG_ON(attr >= DMA_ATTR_MAX); - __set_bit(attr, attrs->flags); -} - -/** - * dma_get_attr - check for a specific attribute - * @attr: attribute to set - * @attrs: struct dma_attrs (may be NULL) - */ -static inline int dma_get_attr(enum dma_attr attr, struct dma_attrs *attrs) -{ - if (attrs == NULL) - return 0; - BUG_ON(attr >= DMA_ATTR_MAX); - return test_bit(attr, attrs->flags); -} -#else /* !CONFIG_HAVE_DMA_ATTRS */ -static inline void dma_set_attr(enum dma_attr attr, struct dma_attrs *attrs) -{ -} - -static inline int dma_get_attr(enum dma_attr attr, struct dma_attrs *attrs) -{ - return 0; -} -#endif /* CONFIG_HAVE_DMA_ATTRS */ -#endif /* _DMA_ATTR_H */ |