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

The KFD code will call this function later.

Signed-off-by: Yong Zhao <Yong.Zhao@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 17:23:12 -04:00 committed by Alex Deucher
parent 923c087a1f
commit e7956997b1
2 changed files with 14 additions and 7 deletions
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19
drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
View File

@ -31,20 +31,25 @@
#include "soc15_common.h"
static void mmhub_v2_0_init_gart_pt_regs(struct amdgpu_device *adev)
void mmhub_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 mmMMVM_CONTEXT0_* to mmMMVM_CONTEXT1_* */
int offset = mmMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
- mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
lower_32_bits(value));
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
offset * vmid, lower_32_bits(page_table_base));
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
upper_32_bits(value));
WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
offset * vmid, upper_32_bits(page_table_base));
}
static void mmhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
{
mmhub_v2_0_init_gart_pt_regs(adev);
uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
mmhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base);
WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
(u32)(adev->gmc.gart_start >> 12));

2
drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.h
View File

@ -31,5 +31,7 @@ void mmhub_v2_0_init(struct amdgpu_device *adev);
int mmhub_v2_0_set_clockgating(struct amdgpu_device *adev,
enum amd_clockgating_state state);
void mmhub_v2_0_get_clockgating(struct amdgpu_device *adev, u32 *flags);
void mmhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
uint64_t page_table_base);
#endif