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| author | Omer Shpigelman <oshpigelman@habana.ai> | 2020-03-22 21:12:51 +0200 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-05-17 12:06:22 +0300 |
| commit | 76cedc739d7aac461ae303ca0e8b3a81e6ae00aa (patch) | |
| tree | 3d9804259904ed2ea3f0f90c1dea4b2220c6d817 /drivers/misc/habanalabs/goya | |
| parent | 3ec499c967ae507c184c2e0955360d139fc9f23d (diff) | |
| download | linux-76cedc739d7aac461ae303ca0e8b3a81e6ae00aa.tar.bz2 | |
habanalabs: remove stop-on-error flag from DMA
Stop-on-error mode in DMA is useful as it stops the transaction
immediately upon error e.g. page fault.
But it may cause the next command submission to fail as is leaves the DMA
in unstable state.
Therefore we remove the stop-on-error configuration from the DMA.
Stop-on-err is still available for debug.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/goya')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index db125cf80850..08f1d4080008 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -800,6 +800,7 @@ static void goya_init_dma_qman(struct hl_device *hdev, int dma_id, u32 so_base_lo, so_base_hi; u32 gic_base_lo, gic_base_hi; u32 reg_off = dma_id * (mmDMA_QM_1_PQ_PI - mmDMA_QM_0_PQ_PI); + u32 dma_err_cfg = QMAN_DMA_ERR_MSG_EN; mtr_base_lo = lower_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0); mtr_base_hi = upper_32_bits(CFG_BASE + mmSYNC_MNGR_MON_PAY_ADDRL_0); @@ -836,7 +837,10 @@ static void goya_init_dma_qman(struct hl_device *hdev, int dma_id, else WREG32(mmDMA_QM_0_GLBL_PROT + reg_off, QMAN_DMA_FULLY_TRUSTED); - WREG32(mmDMA_QM_0_GLBL_ERR_CFG + reg_off, QMAN_DMA_ERR_MSG_EN); + if (hdev->stop_on_err) + dma_err_cfg |= 1 << DMA_QM_0_GLBL_ERR_CFG_DMA_STOP_ON_ERR_SHIFT; + + WREG32(mmDMA_QM_0_GLBL_ERR_CFG + reg_off, dma_err_cfg); WREG32(mmDMA_QM_0_GLBL_CFG0 + reg_off, QMAN_DMA_ENABLE); } |