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habanalabs: fix validation of WREG32 to DMA completion 

This patch fix a bug in the validation of WREG32 in DMA queues. The
validation was too strict. It allowed the user to set the completion
address only for DMA channel 1.

The fix allows the user to set the completion address for all 5 DMA
channels.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oded Gabbay 2019-02-28 10:46:14 +02:00 committed by Greg Kroah-Hartman
parent 1e7c1ec14b
commit 6765fda0f4
1 changed files with 1 additions and 1 deletions
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2
drivers/misc/habanalabs/goya/goya.c
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@ -3769,7 +3769,7 @@ static int goya_validate_wreg32(struct hl_device *hdev,
dev_dbg(hdev->dev, "reg_offset == 0x%x\n", reg_offset);
dev_dbg(hdev->dev, "value == 0x%x\n", wreg_pkt->value);
if (reg_offset != (mmDMA_CH_1_WR_COMP_ADDR_LO & 0xFFFF)) {
if (reg_offset != (mmDMA_CH_0_WR_COMP_ADDR_LO & 0x1FFF)) {
dev_err(hdev->dev, "WREG32 packet with illegal address 0x%x\n",
reg_offset);
return -EPERM;