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habanalabs/gaudi2: print RAZWI info upon PCIe access error

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Add the dump of the RAZWI information when a PCIe access is blocked by
RR.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Tomer Tayar 2022-09-05 16:24:21 +03:00 committed by Oded Gabbay
parent 82736b063f
commit cecde184ca
2 changed files with 61 additions and 4 deletions
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52
drivers/misc/habanalabs/gaudi2/gaudi2.c
View File

@ -7963,14 +7963,58 @@ static void gaudi2_handle_dma_core_event(struct hl_device *hdev, u64 intr_cause_
gaudi2_dma_core_interrupts_cause[i]);
}
static void gaudi2_print_pcie_mstr_rr_mstr_if_razwi_info(struct hl_device *hdev)
{
u32 mstr_if_base_addr = mmPCIE_MSTR_RR_MSTR_IF_RR_SHRD_HBW_BASE, razwi_happened_addr;
razwi_happened_addr = mstr_if_base_addr + RR_SHRD_HBW_AW_RAZWI_HAPPENED;
if (RREG32(razwi_happened_addr)) {
gaudi2_razwi_rr_hbw_shared_printf_info(hdev, mstr_if_base_addr, true, "PCIE", true,
NULL);
WREG32(razwi_happened_addr, 0x1);
}
razwi_happened_addr = mstr_if_base_addr + RR_SHRD_HBW_AR_RAZWI_HAPPENED;
if (RREG32(razwi_happened_addr)) {
gaudi2_razwi_rr_hbw_shared_printf_info(hdev, mstr_if_base_addr, false, "PCIE", true,
NULL);
WREG32(razwi_happened_addr, 0x1);
}
razwi_happened_addr = mstr_if_base_addr + RR_SHRD_LBW_AW_RAZWI_HAPPENED;
if (RREG32(razwi_happened_addr)) {
gaudi2_razwi_rr_lbw_shared_printf_info(hdev, mstr_if_base_addr, true, "PCIE", true,
NULL);
WREG32(razwi_happened_addr, 0x1);
}
razwi_happened_addr = mstr_if_base_addr + RR_SHRD_LBW_AR_RAZWI_HAPPENED;
if (RREG32(razwi_happened_addr)) {
gaudi2_razwi_rr_lbw_shared_printf_info(hdev, mstr_if_base_addr, false, "PCIE", true,
NULL);
WREG32(razwi_happened_addr, 0x1);
}
}
static void gaudi2_print_pcie_addr_dec_info(struct hl_device *hdev, u64 intr_cause_data)
{
int i;
for (i = 0 ; i < GAUDI2_NUM_OF_PCIE_ADDR_DEC_ERR_CAUSE; i++)
if (intr_cause_data & BIT_ULL(i))
dev_err_ratelimited(hdev->dev, "PCIE ADDR DEC Error: %s\n",
gaudi2_pcie_addr_dec_error_cause[i]);
for (i = 0 ; i < GAUDI2_NUM_OF_PCIE_ADDR_DEC_ERR_CAUSE ; i++) {
if (!(intr_cause_data & BIT_ULL(i)))
continue;
dev_err_ratelimited(hdev->dev, "PCIE ADDR DEC Error: %s\n",
gaudi2_pcie_addr_dec_error_cause[i]);
switch (intr_cause_data & BIT_ULL(i)) {
case PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_LBW_ERR_INTR_MASK:
break;
case PCIE_WRAP_PCIE_IC_SEI_INTR_IND_BAD_ACCESS_INTR_MASK:
gaudi2_print_pcie_mstr_rr_mstr_if_razwi_info(hdev);
break;
}
}
}
static void gaudi2_handle_pif_fatal(struct hl_device *hdev, u64 intr_cause_data)

13
drivers/misc/habanalabs/gaudi2/gaudi2_masks.h
View File

@ -144,4 +144,17 @@
#define DCORE0_SYNC_MNGR_OBJS_SOB_OBJ_SIGN_SHIFT 15
#define DCORE0_SYNC_MNGR_OBJS_SOB_OBJ_SIGN_MASK 0x8000
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_ERR_INTR_SHIFT 0
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_ERR_INTR_MASK 0x1
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_LBW_ERR_INTR_SHIFT 1
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_LBW_ERR_INTR_MASK 0x2
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_BAD_ACCESS_INTR_SHIFT 2
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_BAD_ACCESS_INTR_MASK 0x4
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_ERR_INTR_MASK_SHIFT 3
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_ERR_INTR_MASK_MASK 0x8
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_LBW_ERR_INTR_MASK_SHIFT 4
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_AXI_LBW_ERR_INTR_MASK_MASK 0x10
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_BAD_ACCESS_INTR_MASK_SHIFT 5
#define PCIE_WRAP_PCIE_IC_SEI_INTR_IND_BAD_ACCESS_INTR_MASK_MASK 0x20
#endif /* GAUDI2_MASKS_H_ */