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| author | Victor Lu <victorchengchi.lu@amd.com> | 2025-02-13 18:38:28 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-04 14:42:02 +0200 |
| commit | 3af9db78423c5e49d488f8f2b9deabadfa0dc396 (patch) | |
| tree | 00a9b034fbe73d38a692503820c40f57ba6e59f8 /drivers/gpu/drm | |
| parent | fef1e1487dea81c2b4560e393ba4b0be57e28d01 (diff) | |
| download | linux-3af9db78423c5e49d488f8f2b9deabadfa0dc396.tar.gz linux-3af9db78423c5e49d488f8f2b9deabadfa0dc396.tar.bz2 linux-3af9db78423c5e49d488f8f2b9deabadfa0dc396.zip | |
drm/amdgpu: Do not program AGP BAR regs under SRIOV in gfxhub_v1_0.c
[ Upstream commit 057fef20b8401110a7bc1c2fe9d804a8a0bf0d24 ]
SRIOV VF does not have write access to AGP BAR regs.
Skip the writes to avoid a dmesg warning.
Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c index 66c6bab75f8a..0d3d00681eda 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c @@ -92,12 +92,12 @@ static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) { uint64_t value; - /* Program the AGP BAR */ - WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0); - WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); - WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); - if (!amdgpu_sriov_vf(adev) || adev->asic_type <= CHIP_VEGA10) { + /* Program the AGP BAR */ + WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0); + WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); + WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); + /* Program the system aperture low logical page number. */ WREG32_SOC15_RLC(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); |