[AMD Official Use Only]
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Regards,
Hawking
-----Original Message-----
From: Lazar, Lijo <Lijo.Lazar@xxxxxxx>
Sent: Wednesday, November 24, 2021 19:35
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Pawar, Ashish <Ashish.Pawar@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>
Subject: [PATCH] drm/amdgpu: Skip ASPM programming on aldebaran
There is no need for additional programming, keep the default settings.
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
index e96516d3fd45..dc5e93756fea 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
@@ -694,6 +694,9 @@ static void nbio_v7_4_program_aspm(struct amdgpu_device *adev) {
uint32_t def, data;
+ if (adev->ip_versions[NBIO_HWIP][0] == IP_VERSION(7, 4, 4))
+ return;
+
def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
--
2.25.1
