Commit 43647952 authored by Dani Liberman's avatar Dani Liberman Committed by Oded Gabbay
Browse files

habanalabs/gaudi2: print page fault axi transaction id 



AXI transaction id holds information about the initiator which caused
the page fault. In the future it will be translated automatically by
driver to an initiator name.

Signed-off-by: default avatarDani Liberman <dliberman@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent b86b73ec

drivers/accel/habanalabs/gaudi2/gaudi2.c

+6 −3
Original line number Diff line number Diff line
@@ -8287,7 +8287,7 @@ static int gaudi2_handle_hif_fatal(struct hl_device *hdev, u16 event_type, u64 i 
static void gaudi2_handle_page_error(struct hl_device *hdev, u64 mmu_base, bool is_pmmu,

					u64 *event_mask)

{

	u32 valid, val;

	u32 valid, val, axid_l, axid_h;

	u64 addr;



	valid = RREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_ACCESS_PAGE_ERROR_VALID));
@@ -8300,8 +8300,11 @@ static void gaudi2_handle_page_error(struct hl_device *hdev, u64 mmu_base, bool 
	addr <<= 32;

	addr |= RREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_PAGE_ERROR_CAPTURE_VA));



	dev_err_ratelimited(hdev->dev, "%s page fault on va 0x%llx\n",

				is_pmmu ? "PMMU" : "HMMU", addr);

	axid_l = RREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_PAGE_FAULT_ID_LSB));

	axid_h = RREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_PAGE_FAULT_ID_MSB));



	dev_err_ratelimited(hdev->dev, "%s page fault on va 0x%llx, transaction id 0x%llX\n",

				is_pmmu ? "PMMU" : "HMMU", addr, ((u64)axid_h << 32) + axid_l);

	hl_handle_page_fault(hdev, addr, 0, is_pmmu, event_mask);



	WREG32(mmu_base + MMU_OFFSET(mmDCORE0_HMMU0_MMU_PAGE_ERROR_CAPTURE), 0);