|  | /* | 
|  | * Copyright 2016 Advanced Micro Devices, Inc. | 
|  | * | 
|  | * Permission is hereby granted, free of charge, to any person obtaining a | 
|  | * copy of this software and associated documentation files (the "Software"), | 
|  | * to deal in the Software without restriction, including without limitation | 
|  | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | 
|  | * and/or sell copies of the Software, and to permit persons to whom the | 
|  | * Software is furnished to do so, subject to the following conditions: | 
|  | * | 
|  | * The above copyright notice and this permission notice shall be included in | 
|  | * all copies or substantial portions of the Software. | 
|  | * | 
|  | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
|  | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
|  | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL | 
|  | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | 
|  | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | 
|  | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | 
|  | * OTHER DEALINGS IN THE SOFTWARE. | 
|  | * | 
|  | */ | 
|  | #include "amdgpu.h" | 
|  | #include "amdgpu_atombios.h" | 
|  | #include "nbio_v7_0.h" | 
|  |  | 
|  | #include "vega10/soc15ip.h" | 
|  | #include "raven1/NBIO/nbio_7_0_default.h" | 
|  | #include "raven1/NBIO/nbio_7_0_offset.h" | 
|  | #include "raven1/NBIO/nbio_7_0_sh_mask.h" | 
|  | #include "vega10/vega10_enum.h" | 
|  |  | 
|  | #define smnNBIF_MGCG_CTRL_LCLK	0x1013a05c | 
|  |  | 
|  | u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev) | 
|  | { | 
|  | u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); | 
|  |  | 
|  | tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; | 
|  | tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; | 
|  |  | 
|  | return tmp; | 
|  | } | 
|  |  | 
|  | u32 nbio_v7_0_get_atombios_scratch_regs(struct amdgpu_device *adev, | 
|  | uint32_t idx) | 
|  | { | 
|  | return RREG32_SOC15_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0, idx); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_set_atombios_scratch_regs(struct amdgpu_device *adev, | 
|  | uint32_t idx, uint32_t val) | 
|  | { | 
|  | WREG32_SOC15_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0, idx, val); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable) | 
|  | { | 
|  | if (enable) | 
|  | WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, | 
|  | BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); | 
|  | else | 
|  | WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_hdp_flush(struct amdgpu_device *adev) | 
|  | { | 
|  | WREG32_SOC15(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0); | 
|  | } | 
|  |  | 
|  | u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev) | 
|  | { | 
|  | return RREG32_SOC15(NBIO, 0, mmRCC_CONFIG_MEMSIZE); | 
|  | } | 
|  |  | 
|  | static const u32 nbio_sdma_doorbell_range_reg[] = | 
|  | { | 
|  | SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE), | 
|  | SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE) | 
|  | }; | 
|  |  | 
|  | void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance, | 
|  | bool use_doorbell, int doorbell_index) | 
|  | { | 
|  | u32 doorbell_range = RREG32(nbio_sdma_doorbell_range_reg[instance]); | 
|  |  | 
|  | if (use_doorbell) { | 
|  | doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index); | 
|  | doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 2); | 
|  | } else | 
|  | doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0); | 
|  |  | 
|  | WREG32(nbio_sdma_doorbell_range_reg[instance], doorbell_range); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev, | 
|  | bool enable) | 
|  | { | 
|  | WREG32_FIELD15(NBIO, 0, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, enable ? 1 : 0); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev, | 
|  | bool use_doorbell, int doorbell_index) | 
|  | { | 
|  | u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE); | 
|  |  | 
|  | if (use_doorbell) { | 
|  | ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index); | 
|  | ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2); | 
|  | } else | 
|  | ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0); | 
|  |  | 
|  | WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range); | 
|  | } | 
|  |  | 
|  | static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset) | 
|  | { | 
|  | uint32_t data; | 
|  |  | 
|  | WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset); | 
|  | data = RREG32_SOC15(NBIO, 0, mmSYSHUB_DATA); | 
|  |  | 
|  | return data; | 
|  | } | 
|  |  | 
|  | static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset, | 
|  | uint32_t data) | 
|  | { | 
|  | WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset); | 
|  | WREG32_SOC15(NBIO, 0, mmSYSHUB_DATA, data); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev, | 
|  | bool enable) | 
|  | { | 
|  | uint32_t def, data; | 
|  |  | 
|  | /* NBIF_MGCG_CTRL_LCLK */ | 
|  | def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK); | 
|  |  | 
|  | if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) | 
|  | data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; | 
|  | else | 
|  | data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; | 
|  |  | 
|  | if (def != data) | 
|  | WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data); | 
|  |  | 
|  | /* SYSHUB_MGCG_CTRL_SOCCLK */ | 
|  | def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK); | 
|  |  | 
|  | if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) | 
|  | data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; | 
|  | else | 
|  | data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; | 
|  |  | 
|  | if (def != data) | 
|  | nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data); | 
|  |  | 
|  | /* SYSHUB_MGCG_CTRL_SHUBCLK */ | 
|  | def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK); | 
|  |  | 
|  | if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) | 
|  | data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; | 
|  | else | 
|  | data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; | 
|  |  | 
|  | if (def != data) | 
|  | nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data); | 
|  | } | 
|  |  | 
|  | void nbio_v7_0_ih_control(struct amdgpu_device *adev) | 
|  | { | 
|  | u32 interrupt_cntl; | 
|  |  | 
|  | /* setup interrupt control */ | 
|  | WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page.addr >> 8); | 
|  | interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL); | 
|  | /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi | 
|  | * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN | 
|  | */ | 
|  | interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0); | 
|  | /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */ | 
|  | interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0); | 
|  | WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl); | 
|  | } | 
|  |  | 
|  | struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg; | 
|  | struct nbio_pcie_index_data nbio_v7_0_pcie_index_data; | 
|  |  | 
|  | int nbio_v7_0_init(struct amdgpu_device *adev) | 
|  | { | 
|  | nbio_v7_0_hdp_flush_reg.hdp_flush_req_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ); | 
|  | nbio_v7_0_hdp_flush_reg.hdp_flush_done_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE); | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK; | 
|  | nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK; | 
|  |  | 
|  | nbio_v7_0_pcie_index_data.index_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2); | 
|  | nbio_v7_0_pcie_index_data.data_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2); | 
|  |  | 
|  | return 0; | 
|  | } |