diff options
| author | Ben Walker <benjamin.walker@intel.com> | 2022-03-01 21:25:51 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-04-20 14:58:12 +0300 |
| commit | 643a4a85b0bc7efeb5732fb4563c43c77ba0c6ac (patch) | |
| tree | 8d7afbd91d9d66a7ceb5bd291728d4a5ed380660 | |
| parent | 3e0c06964bfcc8271a07065709452fcbc44e70b0 (diff) | |
| download | linux-643a4a85b0bc7efeb5732fb4563c43c77ba0c6ac.tar.xz | |
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>
| -rw-r--r-- | drivers/dma/qcom/hidma.c | 13 |
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 */ |