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drm/amd: Fix initialization mistake for NBIO 7.3.0

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[ Upstream commit 1717cc5f2962a4652c76ed3858b499ccae6c277c ]

The same strapping initialization issue that happened on NBIO 7.5.1
appears to be happening on NBIO 7.3.0.
Apply the same fix to 7.3.0 as well.

Note: This workaround relies upon the integrated GPU being enabled
in BIOS. If the integrated GPU is disabled in BIOS a different
workaround will be required.

Reported-by: Thomas Glanzmann <thomas@glanzmann.de>
Cc: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/linux-usb/Y%2Fz9GdHjPyF2rNG3@glanzmann.de/T/#u
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mario Limonciello 2023-03-01 09:36:06 -06:00 committed by Greg Kroah-Hartman
parent f06b902511
commit a0e39cdddc
1 changed files with 9 additions and 5 deletions
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14
drivers/gpu/drm/amd/amdgpu/nbio_v7_2.c
View File

@ -382,11 +382,6 @@ static void nbio_v7_2_init_registers(struct amdgpu_device *adev)
if (def != data)
WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regBIF1_PCIE_MST_CTRL_3), data);
break;
case IP_VERSION(7, 5, 1):
data = RREG32_SOC15(NBIO, 0, regRCC_DEV2_EPF0_STRAP2);
data &= ~RCC_DEV2_EPF0_STRAP2__STRAP_NO_SOFT_RESET_DEV2_F0_MASK;
WREG32_SOC15(NBIO, 0, regRCC_DEV2_EPF0_STRAP2, data);
fallthrough;
default:
def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CONFIG_CNTL));
data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL,
@ -399,6 +394,15 @@ static void nbio_v7_2_init_registers(struct amdgpu_device *adev)
break;
}
switch (adev->ip_versions[NBIO_HWIP][0]) {
case IP_VERSION(7, 3, 0):
case IP_VERSION(7, 5, 1):
data = RREG32_SOC15(NBIO, 0, regRCC_DEV2_EPF0_STRAP2);
data &= ~RCC_DEV2_EPF0_STRAP2__STRAP_NO_SOFT_RESET_DEV2_F0_MASK;
WREG32_SOC15(NBIO, 0, regRCC_DEV2_EPF0_STRAP2, data);
break;
}
if (amdgpu_sriov_vf(adev))
adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
regBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;