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| author | Alex Deucher <alexander.deucher@amd.com> | 2020-11-30 10:44:51 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-12-01 16:04:28 -0500 |
| commit | 99698b51e58509d6eaf3768ac9f38db979b721ee (patch) | |
| tree | 8134ce990dde0297406aa9969ede2a6134a769ee /drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c | |
| parent | 7624897c10540d82f78c63ed7bad1c1d011b9fd6 (diff) | |
| download | linux-99698b51e58509d6eaf3768ac9f38db979b721ee.tar.bz2 | |
drm/amdgpu: enable AGP aperture on gmc10.x (v2)
Just a small optimization for accessing system pages directly.
Was missed for gmc v10 since the feature landed for older gmcs
while we were still on the emulator or gmc10 and we use the AGP
aperture for zfb on the emulator.
v2: fix up the system aperture as well
Reviewed-and-tested-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c index 3a248c8cd0b9..fa77eae6cf47 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c @@ -152,14 +152,14 @@ static void mmhub_v2_3_init_system_aperture_regs(struct amdgpu_device *adev) /* Disable AGP. */ WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BASE, 0); - WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_TOP, 0); - WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BOT, 0x00FFFFFF); + WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); + WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); /* Program the system aperture low logical page number. */ WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_LOW_ADDR, - adev->gmc.vram_start >> 18); + min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR, - adev->gmc.vram_end >> 18); + max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); /* Set default page address. */ value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start + |