diff options
| 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/gfxhub_v2_0.c | |
| parent | 7624897c10540d82f78c63ed7bad1c1d011b9fd6 (diff) | |
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/gfxhub_v2_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c index 456360bf58fa..2aecc6a243e8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c @@ -153,16 +153,16 @@ static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev) uint64_t value; if (!amdgpu_sriov_vf(adev)) { - /* Disable AGP. */ + /* Program the AGP BAR */ WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0); - WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0); - WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF); + WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); + WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); /* Program the system aperture low logical page number. */ WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR, - adev->gmc.vram_start >> 18); + min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); WREG32_SOC15(GC, 0, mmGCMC_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 |