Mark the hardware descriptor as being cache line aligned; on DMA
incoherent architectures, the hardware descriptor should sit in a
separate cache line from the CPU accessed data to avoid polluting
the caches.
Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk>
---
drivers/crypto/caam/caamhash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index ce9c1bc23795..e9c52cbf9a41 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -604,7 +604,7 @@ struct ahash_edesc {
int src_nents;
int sec4_sg_bytes;
struct sec4_sg_entry *sec4_sg;
- u32 hw_desc[DESC_JOB_IO_LEN / sizeof(u32)];
+ u32 hw_desc[DESC_JOB_IO_LEN / sizeof(u32)] ____cacheline_aligned;
};
static inline void ahash_unmap(struct device *dev,
--
2.1.0
--
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