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| author | Tomer Tayar <ttayar@habana.ai> | 2022-06-30 18:40:59 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2022-07-12 09:09:30 +0300 |
| commit | bfbf5a0a711f111564de5d8f6bab7063ba4af2d8 (patch) | |
| tree | 1cfdc02c21ca3ff4ea7e044f1b7dce8541c2645f /drivers/misc | |
| parent | 25ad86383968698b95264cb54c8d662381e20312 (diff) | |
| download | linux-stable-bfbf5a0a711f111564de5d8f6bab7063ba4af2d8.tar.gz linux-stable-bfbf5a0a711f111564de5d8f6bab7063ba4af2d8.tar.bz2 linux-stable-bfbf5a0a711f111564de5d8f6bab7063ba4af2d8.zip | |
habanalabs/gaudi2: modify CS completion CQ to use virtual MSI-X doorbell
Modify the CQ which is used for CS completion, to use the virtual MSI-X
doorbell.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi2/gaudi2.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/misc/habanalabs/gaudi2/gaudi2.c b/drivers/misc/habanalabs/gaudi2/gaudi2.c index d9c398bf7750..343e55a14ca5 100644 --- a/drivers/misc/habanalabs/gaudi2/gaudi2.c +++ b/drivers/misc/habanalabs/gaudi2/gaudi2.c @@ -4254,7 +4254,7 @@ static void gaudi2_init_edma(struct hl_device *hdev) static void gaudi2_init_sm(struct hl_device *hdev) { - u64 msix_db_reg = CFG_BASE + mmPCIE_DBI_MSIX_DOORBELL_OFF; + struct gaudi2_device *gaudi2 = hdev->asic_specific; u64 cq_address; u32 reg_val; int i; @@ -4272,8 +4272,21 @@ static void gaudi2_init_sm(struct hl_device *hdev) /* Init CQ0 DB */ /* Configure the monitor to trigger MSI-X interrupt */ - WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_L_0, lower_32_bits(msix_db_reg)); - WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_H_0, upper_32_bits(msix_db_reg)); + /* TODO: + * Remove the if statement when virtual MSI-X doorbell is supported in simulator (SW-93022) + * and in F/W (SW-93024). + */ + if (!hdev->pdev || hdev->asic_prop.fw_security_enabled) { + u64 msix_db_reg = CFG_BASE + mmPCIE_DBI_MSIX_DOORBELL_OFF; + + WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_L_0, lower_32_bits(msix_db_reg)); + WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_H_0, upper_32_bits(msix_db_reg)); + } else { + WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_L_0, + lower_32_bits(gaudi2->virt_msix_db_dma_addr)); + WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_ADDR_H_0, + upper_32_bits(gaudi2->virt_msix_db_dma_addr)); + } WREG32(mmDCORE0_SYNC_MNGR_GLBL_LBW_DATA_0, GAUDI2_IRQ_NUM_COMPLETION); for (i = 0 ; i < GAUDI2_RESERVED_CQ_NUMBER ; i++) { |