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swiotlb: add a IO_TLB_SIZE define

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commit: b5d7ccb7aac3895c2138fe0980a109116ce15eff

Add a new IO_TLB_SIZE define instead open coding it using
IO_TLB_SHIFT all over.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jianxiong Gao <jxgao@google.com>
Tested-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jianxiong Gao <jxgao@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jianxiong Gao
2021-04-29 17:33:08 +00:00
committed by Greg Kroah-Hartman
parent 2e8b3b0b8e
commit 22163a8ec8
2 changed files with 7 additions and 6 deletions
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include/linux/swiotlb.h
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@@ -29,6 +29,7 @@ enum swiotlb_force {
* controllable.
*/
#define IO_TLB_SHIFT 11
#define IO_TLB_SIZE (1 << IO_TLB_SHIFT)
extern void swiotlb_init(int verbose);
int swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose);