Messages in this thread Patch in this message | | | From | Oded Gabbay <> | Subject | [PATCH 1/3] habanalabs/gaudi: remove axi drain support | Date | Wed, 16 Sep 2020 16:43:31 +0300 |
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AXI drain is broken in GAUDI so remove support for enabling it.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> --- drivers/misc/habanalabs/gaudi/gaudi.c | 16 ---------------- 1 file changed, 16 deletions(-)
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 6f7f6ad7a358..2c10e3f92c86 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -2885,22 +2885,6 @@ static void gaudi_pre_hw_init(struct hl_device *hdev) */ RREG32(mmPCIE_WRAP_LBW_PROT_OVR); - if (hdev->axi_drain) { - WREG32(mmPCIE_WRAP_LBW_DRAIN_CFG, - 1 << PCIE_WRAP_LBW_DRAIN_CFG_EN_SHIFT); - WREG32(mmPCIE_WRAP_HBW_DRAIN_CFG, - 1 << PCIE_WRAP_HBW_DRAIN_CFG_EN_SHIFT); - - /* Perform read to flush the DRAIN cfg */ - RREG32(mmPCIE_WRAP_HBW_DRAIN_CFG); - } else { - WREG32(mmPCIE_WRAP_LBW_DRAIN_CFG, 0); - WREG32(mmPCIE_WRAP_HBW_DRAIN_CFG, 0); - - /* Perform read to flush the DRAIN cfg */ - RREG32(mmPCIE_WRAP_HBW_DRAIN_CFG); - } - /* Configure the reset registers. Must be done as early as possible * in case we fail during H/W initialization */ -- 2.17.1
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