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authorBen Walker <benjamin.walker@intel.com>2022-03-01 11:25:51 -0700
committerVinod Koul <vkoul@kernel.org>2022-04-20 17:28:12 +0530
commit643a4a85b0bc7efeb5732fb4563c43c77ba0c6ac (patch)
tree8d7afbd91d9d66a7ceb5bd291728d4a5ed380660 /drivers/dma
parent3e0c06964bfcc8271a07065709452fcbc44e70b0 (diff)
dmaengine: hidma: In hidma_prep_dma_memset treat value as a single byte
The value parameter is a single byte, so duplicate it to the 8 byte range that is used as the pattern. Signed-off-by: Ben Walker <benjamin.walker@intel.com> Cc: Sinan Kaya <okaya@kernel.org> Link: https://lore.kernel.org/r/20220301182551.883474-5-benjamin.walker@intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/qcom/hidma.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c
index 51587cf8196b..210f1a9eb441 100644
--- a/drivers/dma/qcom/hidma.c
+++ b/drivers/dma/qcom/hidma.c
@@ -431,6 +431,7 @@ hidma_prep_dma_memset(struct dma_chan *dmach, dma_addr_t dest, int value,
struct hidma_desc *mdesc = NULL;
struct hidma_dev *mdma = mchan->dmadev;
unsigned long irqflags;
+ u64 byte_pattern, fill_pattern;
/* Get free descriptor */
spin_lock_irqsave(&mchan->lock, irqflags);
@@ -443,9 +444,19 @@ hidma_prep_dma_memset(struct dma_chan *dmach, dma_addr_t dest, int value,
if (!mdesc)
return NULL;
+ byte_pattern = (char)value;
+ fill_pattern = (byte_pattern << 56) |
+ (byte_pattern << 48) |
+ (byte_pattern << 40) |
+ (byte_pattern << 32) |
+ (byte_pattern << 24) |
+ (byte_pattern << 16) |
+ (byte_pattern << 8) |
+ byte_pattern;
+
mdesc->desc.flags = flags;
hidma_ll_set_transfer_params(mdma->lldev, mdesc->tre_ch,
- value, dest, len, flags,
+ fill_pattern, dest, len, flags,
HIDMA_TRE_MEMSET);
/* Place descriptor in prepared list */