tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu: Do not program AGP BAR regs under SRIOV in gfxhub_v1_0.c
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>
authored by
Victor Lu
and committed by
Alex Deucher
057fef20
20c34e5c
+5
-5
+5
-5
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+5
-5
drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
···
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{
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uint64_t value;
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-
/* Program the AGP BAR */
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-
WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0);
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-
WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
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-
WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
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-
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if (!amdgpu_sriov_vf(adev) || adev->asic_type <= CHIP_VEGA10) {
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+
/* Program the AGP BAR */
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WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0);
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+
WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
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+
WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
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+
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/* Program the system aperture low logical page number. */
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WREG32_SOC15_RLC(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
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min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);