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drm/amdgpu: Export setup_vm_pt_regs() logic for gfxhub 2.0 

The KFD code will call this function later.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yong Zhao 2019-09-24 17:08:30 -04:00 committed by Alex Deucher
parent 56fc40aba4
commit 286b789e1e
2 changed files with 14 additions and 8 deletions
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20
drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
View File

@ -46,21 +46,25 @@ u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)
return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;
}
static void gfxhub_v2_0_init_gart_pt_regs(struct amdgpu_device *adev)
void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
uint64_t page_table_base)
{
uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);
/* two registers distance between mmGCVM_CONTEXT0_* to mmGCVM_CONTEXT1_* */
int offset = mmGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
- mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
offset * vmid, lower_32_bits(page_table_base));
WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
lower_32_bits(value));
WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
upper_32_bits(value));
WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
offset * vmid, upper_32_bits(page_table_base));
}
static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
{
gfxhub_v2_0_init_gart_pt_regs(adev);
uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
gfxhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base);
WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
(u32)(adev->gmc.gart_start >> 12));

2
drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.h
View File

@ -31,5 +31,7 @@ void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
bool value);
void gfxhub_v2_0_init(struct amdgpu_device *adev);
u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev);
void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
uint64_t page_table_base);
#endif