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habanalabs/gaudi: remove axi drain support 

AXI drain is broken in GAUDI so remove support for enabling it.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Oded Gabbay 2020-09-13 15:35:33 +03:00
parent 219b8f2ff0
commit dbf053c429
1 changed files with 0 additions and 16 deletions
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16
drivers/misc/habanalabs/gaudi/gaudi.c
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@ -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
*/