From 2c763f37d0a08d39c1a0b1318fa82896c31a6c9d Mon Sep 17 00:00:00 2001 From: Yifan Zha Date: Tue, 25 Oct 2022 15:47:19 +0800 Subject: [PATCH] drm/amdgpu: Skip program gfxhub_v3_0_3 system aperture registers under SRIOV [Why] gfxhub_v3_0_3 system aperture registers are removed from RLCG register access range. [How] Skip access gfxhub_v3_0_3 system aperture registers under SRIOV VF. These registers will be programmed on host side. Signed-off-by: Yifan Zha Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c index 5d3fffd..716ae6f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c @@ -154,6 +154,9 @@ static void gfxhub_v3_0_3_init_system_aperture_regs(struct amdgpu_device *adev) { uint64_t value; + if (amdgpu_sriov_vf(adev)) + return; + /* Disable AGP. */ WREG32_SOC15(GC, 0, regGCMC_VM_AGP_BASE, 0); WREG32_SOC15(GC, 0, regGCMC_VM_AGP_TOP, 0); -- 2.7.4