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| author | Oded Gabbay <oded.gabbay@gmail.com> | 2020-01-16 17:48:16 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-03-24 11:54:16 +0300 |
| commit | e5509d52793c7535cca1df28dba893d2b2e8ce02 (patch) | |
| tree | 73b6169e6f3c3e044b9528baab23fb6c5fd53dcf /drivers/misc | |
| parent | 5cce51464c61b868157e578261d45fe389e81e54 (diff) | |
| download | linux-e5509d52793c7535cca1df28dba893d2b2e8ce02.tar.xz | |
habanalabs: ratelimit error prints of IRQs
The compute engines can perform millions of transactions per second. If
there is a bug in the S/W stack, we could get a lot of interrupts and spam
the kernel log. Therefore, ratelimit these prints
Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 0b6567b48622..19bce06e5fc0 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -4480,22 +4480,22 @@ static void goya_get_event_desc(u16 event_type, char *desc, size_t size) static void goya_print_razwi_info(struct hl_device *hdev) { if (RREG32(mmDMA_MACRO_RAZWI_LBW_WT_VLD)) { - dev_err(hdev->dev, "Illegal write to LBW\n"); + dev_err_ratelimited(hdev->dev, "Illegal write to LBW\n"); WREG32(mmDMA_MACRO_RAZWI_LBW_WT_VLD, 0); } if (RREG32(mmDMA_MACRO_RAZWI_LBW_RD_VLD)) { - dev_err(hdev->dev, "Illegal read from LBW\n"); + dev_err_ratelimited(hdev->dev, "Illegal read from LBW\n"); WREG32(mmDMA_MACRO_RAZWI_LBW_RD_VLD, 0); } if (RREG32(mmDMA_MACRO_RAZWI_HBW_WT_VLD)) { - dev_err(hdev->dev, "Illegal write to HBW\n"); + dev_err_ratelimited(hdev->dev, "Illegal write to HBW\n"); WREG32(mmDMA_MACRO_RAZWI_HBW_WT_VLD, 0); } if (RREG32(mmDMA_MACRO_RAZWI_HBW_RD_VLD)) { - dev_err(hdev->dev, "Illegal read from HBW\n"); + dev_err_ratelimited(hdev->dev, "Illegal read from HBW\n"); WREG32(mmDMA_MACRO_RAZWI_HBW_RD_VLD, 0); } } @@ -4515,7 +4515,8 @@ static void goya_print_mmu_error_info(struct hl_device *hdev) addr <<= 32; addr |= RREG32(mmMMU_PAGE_ERROR_CAPTURE_VA); - dev_err(hdev->dev, "MMU page fault on va 0x%llx\n", addr); + dev_err_ratelimited(hdev->dev, "MMU page fault on va 0x%llx\n", + addr); WREG32(mmMMU_PAGE_ERROR_CAPTURE, 0); } @@ -4527,7 +4528,7 @@ static void goya_print_irq_info(struct hl_device *hdev, u16 event_type, char desc[20] = ""; goya_get_event_desc(event_type, desc, sizeof(desc)); - dev_err(hdev->dev, "Received H/W interrupt %d [\"%s\"]\n", + dev_err_ratelimited(hdev->dev, "Received H/W interrupt %d [\"%s\"]\n", event_type, desc); if (razwi) { |