diff options
| author | Oak Zeng <Oak.Zeng@amd.com> | 2020-09-18 07:12:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 05:58:49 +0300 |
| commit | 0c19cab5557202ba301190dc4772996daec537aa (patch) | |
| tree | 670dc9d5553dd6468deadc2f86cc48d26e7362c9 /drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c | |
| parent | 522510a677953bbb37916b2090a604beb0fd063b (diff) | |
| download | linux-0c19cab5557202ba301190dc4772996daec537aa.tar.xz | |
drm/amdgpu: HW setup of 2-level vmid0 page table
Set up HW for 2-level vmid0 page table: 1. Set up
PAGE_TABLE_START/END registers. Currently only plan
to do 2-level page table for ALDEBARAN, so only gfxhub1.0
and mmhub1.7 is changed. 2. Set page table base register.
For 2-level page table, the page table base should point
to PDB0. 3. Disable AGP and FB aperture as they are not
used.
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Christian Konig <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c index 3a89bf76d22e..d53b3751418d 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_7.c @@ -65,19 +65,40 @@ void mmhub_v1_7_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid, static void mmhub_v1_7_init_gart_aperture_regs(struct amdgpu_device *adev) { - uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); + uint64_t pt_base; + + if (adev->gmc.pdb0_bo) + pt_base = amdgpu_gmc_pd_addr(adev->gmc.pdb0_bo); + else + pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); mmhub_v1_7_setup_vm_pt_regs(adev, 0, pt_base); - WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, - (u32)(adev->gmc.gart_start >> 12)); - WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, - (u32)(adev->gmc.gart_start >> 44)); + /* If use GART for FB translation, vmid0 page table covers both + * vram and system memory (gart) + */ + if (adev->gmc.pdb0_bo) { + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, + (u32)(adev->gmc.fb_start >> 12)); + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, + (u32)(adev->gmc.fb_start >> 44)); + + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, + (u32)(adev->gmc.gart_end >> 12)); + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, + (u32)(adev->gmc.gart_end >> 44)); - WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, - (u32)(adev->gmc.gart_end >> 12)); - WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, - (u32)(adev->gmc.gart_end >> 44)); + } else { + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, + (u32)(adev->gmc.gart_start >> 12)); + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, + (u32)(adev->gmc.gart_start >> 44)); + + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, + (u32)(adev->gmc.gart_end >> 12)); + WREG32_SOC15(MMHUB, 0, regVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, + (u32)(adev->gmc.gart_end >> 44)); + } } static void mmhub_v1_7_init_system_aperture_regs(struct amdgpu_device *adev) @@ -97,6 +118,17 @@ static void mmhub_v1_7_init_system_aperture_regs(struct amdgpu_device *adev) WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_HIGH_ADDR, max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); + /* In the case squeezing vram into GART aperture, we don't use + * FB aperture and AGP aperture. Disable them. + */ + if (adev->gmc.pdb0_bo) { + WREG32_SOC15(MMHUB, 0, regMC_VM_AGP_BOT, 0xFFFFFF); + WREG32_SOC15(MMHUB, 0, regMC_VM_AGP_TOP, 0); + WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_TOP, 0); + WREG32_SOC15(MMHUB, 0, regMC_VM_FB_LOCATION_BASE, 0x00FFFFFF); + WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x3FFFFFFF); + WREG32_SOC15(MMHUB, 0, regMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0); + } if (amdgpu_sriov_vf(adev)) return; |