summaryrefslogtreecommitdiff
path: root/drivers/dma
diff options
context:
space:
mode:
authorDave Jiang <dave.jiang@intel.com>2021-03-22 16:37:29 -0700
committerVinod Koul <vkoul@kernel.org>2021-04-12 13:26:03 +0530
commitea6a5735d2a61b938a302eb3629272342a9e7c46 (patch)
tree576fd1ca71333acb8105a9c4d23a5c02b6de3643 /drivers/dma
parent4ac823e9cd85f66da274c951d21bf9f6b714b729 (diff)
dmaengine: idxd: fix opcap sysfs attribute output
The operation capability register is 256bits. The current output only prints out the first 64bits. Fix to output the entire 256bits. The current code omits operation caps from IAX devices. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Lucas Van <lucas.van@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/161645624963.2003736.829798666998490151.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/idxd/sysfs.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c
index 4dbb03c545e4..c27ca01cf8b2 100644
--- a/drivers/dma/idxd/sysfs.c
+++ b/drivers/dma/idxd/sysfs.c
@@ -1449,8 +1449,14 @@ static ssize_t op_cap_show(struct device *dev,
{
struct idxd_device *idxd =
container_of(dev, struct idxd_device, conf_dev);
+ int i, rc = 0;
+
+ for (i = 0; i < 4; i++)
+ rc += sysfs_emit_at(buf, rc, "%#llx ", idxd->hw.opcap.bits[i]);
- return sprintf(buf, "%#llx\n", idxd->hw.opcap.bits[0]);
+ rc--;
+ rc += sysfs_emit_at(buf, rc, "\n");
+ return rc;
}
static DEVICE_ATTR_RO(op_cap);