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[Public]
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
From: Zhu, Lingshan <Lingshan.Zhu@xxxxxxx>
Sent: Tuesday, September 24, 2024 11:09 PM To: Deucher, Alexander <Alexander.Deucher@xxxxxxx> Cc: Huang, Ray <Ray.Huang@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; Zhu, Lingshan <Lingshan.Zhu@xxxxxxx>; Du, Bin <Bin.Du@xxxxxxx> Subject: [PATCH 2/2] drm/amdgpu: init saw registers for mmhub v1.0 This commits init registers in the Stand Along Walker
for mmhub v1.0, to support ISP use cases. Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxx> Reported-and-Tested-by: Du Bin <bin.du@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 49 +++++++++++++++++++ .../include/asic_reg/mmhub/mmhub_1_0_offset.h | 23 +++++++++ 2 files changed, 72 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c index e3ddd22aa172..e9a6f33ca710 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c @@ -229,6 +229,52 @@ static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev) 0); } +static void mmhub_v1_0_init_saw(struct amdgpu_device *adev) +{ + uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); + uint32_t tmp; + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, + lower_32_bits(pt_base >> 12)); + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, + upper_32_bits(pt_base >> 12)); + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_LO32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, + (u32)(adev->gmc.gart_start >> 12)); + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_HI32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, + (u32)(adev->gmc.gart_start >> 44)); + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_LO32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, + (u32)(adev->gmc.gart_end >> 12)); + + /* VM_9_X_REGISTER_VM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_HI32 */ + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, + (u32)(adev->gmc.gart_end >> 44)); + + /* Program SAW CONTEXT0 CNTL */ + tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_CNTL); + tmp |= 1 << CONTEXT0_CNTL_ENABLE_OFFSET; + tmp &= ~(3 << CONTEXT0_CNTL_PAGE_TABLE_DEPTH_OFFSET); + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXT0_CNTL, tmp); + + /* Disable all Contexts except Context0 */ + tmp = 0xfffe; + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CONTEXTS_DISABLE, tmp); + + /* Program SAW CNTL4 */ + tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CNTL4); + tmp |= 1 << VMC_TAP_PDE_REQUEST_SNOOP_OFFSET; + tmp |= 1 << VMC_TAP_PTE_REQUEST_SNOOP_OFFSET; + WREG32_SOC15(MMHUB, 0, mmVM_L2_SAW_CNTL4, tmp); +} + static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev) { struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; @@ -283,6 +329,9 @@ static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev) i * hub->ctx_addr_distance, upper_32_bits(adev->vm_manager.max_pfn - 1)); } + + if (amdgpu_ip_version(adev, ISP_HWIP, 0)) + mmhub_v1_0_init_saw(adev); } static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev) diff --git a/drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_1_0_offset.h b/drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_1_0_offset.h index 2c3ce243861a..380e44230bda 100644 --- a/drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_1_0_offset.h +++ b/drivers/gpu/drm/amd/include/asic_reg/mmhub/mmhub_1_0_offset.h @@ -1232,6 +1232,29 @@ #define mmMC_VM_MX_L1_PERFCOUNTER_HI 0x059d #define mmMC_VM_MX_L1_PERFCOUNTER_HI_BASE_IDX 0 +// Stand Alone Walker Registers +#define VMC_TAP_PDE_REQUEST_SNOOP_OFFSET 8 +#define VMC_TAP_PTE_REQUEST_SNOOP_OFFSET 11 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32 0x0606 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32 0x0607 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_LO32 0x0608 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_LO32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_HI32 0x0609 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_START_ADDR_HI32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_LO32 0x060a +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_LO32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_HI32 0x060b +#define mmVM_L2_SAW_CONTEXT0_PAGE_TABLE_END_ADDR_HI32_BASE_IDX 0 +#define mmVM_L2_SAW_CONTEXT0_CNTL 0x0604 +#define mmVM_L2_SAW_CONTEXT0_CNTL_BASE_IDX 0 +#define CONTEXT0_CNTL_ENABLE_OFFSET 0 +#define CONTEXT0_CNTL_PAGE_TABLE_DEPTH_OFFSET 1 +#define mmVM_L2_SAW_CONTEXTS_DISABLE 0x060c +#define mmVM_L2_SAW_CONTEXTS_DISABLE_BASE_IDX 0 +#define mmVM_L2_SAW_CNTL4 0x0603 +#define mmVM_L2_SAW_CNTL4_BASE_IDX 0 // addressBlock: mmhub_utcl2_atcl2dec // base address: 0x69900 -- 2.43.5 |
