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/gfxhub_v1_0.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/gfxhub_v1_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 52 |
1 files changed, 42 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c index 5382c36c93d7..62019885bda5 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c @@ -53,19 +53,39 @@ static void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, static void gfxhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev) { - uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); + uint64_t pt_base; - gfxhub_v1_0_setup_vm_pt_regs(adev, 0, 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); - WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, - (u32)(adev->gmc.gart_start >> 12)); - WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, - (u32)(adev->gmc.gart_start >> 44)); + gfxhub_v1_0_setup_vm_pt_regs(adev, 0, pt_base); - WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, - (u32)(adev->gmc.gart_end >> 12)); - WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, - (u32)(adev->gmc.gart_end >> 44)); + /* If use GART for FB translation, vmid0 page table covers both + * vram and system memory (gart) + */ + if (adev->gmc.pdb0_bo) { + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, + (u32)(adev->gmc.fb_start >> 12)); + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, + (u32)(adev->gmc.fb_start >> 44)); + + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, + (u32)(adev->gmc.gart_end >> 12)); + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, + (u32)(adev->gmc.gart_end >> 44)); + } else { + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, + (u32)(adev->gmc.gart_start >> 12)); + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, + (u32)(adev->gmc.gart_start >> 44)); + + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, + (u32)(adev->gmc.gart_end >> 12)); + WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, + (u32)(adev->gmc.gart_end >> 44)); + } } static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) @@ -116,6 +136,18 @@ static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) WREG32_FIELD15(GC, 0, VM_L2_PROTECTION_FAULT_CNTL2, ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); } + + /* 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(GC, 0, mmMC_VM_FB_LOCATION_TOP, 0); + WREG32_SOC15(GC, 0, mmMC_VM_FB_LOCATION_BASE, 0x00FFFFFF); + WREG32_SOC15(GC, 0, mmMC_VM_AGP_TOP, 0); + WREG32_SOC15(GC, 0, mmMC_VM_AGP_BOT, 0xFFFFFF); + WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x3FFFFFFF); + WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0); + } } static void gfxhub_v1_0_init_tlb_regs(struct amdgpu_device *adev) |