1 /* 2 * Copyright 2016 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 #include "amdgpu.h" 24 #include "amdgpu_atombios.h" 25 #include "nbio_v7_0.h" 26 27 #include "vega10/soc15ip.h" 28 #include "raven1/NBIO/nbio_7_0_default.h" 29 #include "raven1/NBIO/nbio_7_0_offset.h" 30 #include "raven1/NBIO/nbio_7_0_sh_mask.h" 31 #include "vega10/vega10_enum.h" 32 33 #define smnNBIF_MGCG_CTRL_LCLK 0x1013a05c 34 35 u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev) 36 { 37 u32 tmp = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0)); 38 39 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; 40 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; 41 42 return tmp; 43 } 44 45 u32 nbio_v7_0_get_atombios_scratch_regs(struct amdgpu_device *adev, 46 uint32_t idx) 47 { 48 return RREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0) + idx); 49 } 50 51 void nbio_v7_0_set_atombios_scratch_regs(struct amdgpu_device *adev, 52 uint32_t idx, uint32_t val) 53 { 54 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIOS_SCRATCH_0) + idx, val); 55 } 56 57 void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable) 58 { 59 if (enable) 60 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_FB_EN), 61 BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 62 else 63 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_FB_EN), 0); 64 } 65 66 void nbio_v7_0_hdp_flush(struct amdgpu_device *adev) 67 { 68 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL), 0); 69 } 70 71 u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev) 72 { 73 return RREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_CONFIG_MEMSIZE)); 74 } 75 76 static const u32 nbio_sdma_doorbell_range_reg[] = 77 { 78 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE), 79 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE) 80 }; 81 82 void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance, 83 bool use_doorbell, int doorbell_index) 84 { 85 u32 doorbell_range = RREG32(nbio_sdma_doorbell_range_reg[instance]); 86 87 if (use_doorbell) { 88 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index); 89 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 2); 90 } else 91 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0); 92 93 WREG32(nbio_sdma_doorbell_range_reg[instance], doorbell_range); 94 } 95 96 void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev, 97 bool enable) 98 { 99 u32 tmp; 100 101 tmp = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_DOORBELL_APER_EN)); 102 if (enable) 103 tmp = REG_SET_FIELD(tmp, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, 1); 104 else 105 tmp = REG_SET_FIELD(tmp, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, 0); 106 107 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmRCC_DOORBELL_APER_EN), tmp); 108 } 109 110 void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev, 111 bool use_doorbell, int doorbell_index) 112 { 113 u32 ih_doorbell_range = RREG32(SOC15_REG_OFFSET(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE)); 114 115 if (use_doorbell) { 116 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index); 117 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2); 118 } else 119 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0); 120 121 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmBIF_IH_DOORBELL_RANGE), ih_doorbell_range); 122 } 123 124 static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset) 125 { 126 uint32_t data; 127 128 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_INDEX), offset); 129 data = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_DATA)); 130 131 return data; 132 } 133 134 static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset, 135 uint32_t data) 136 { 137 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_INDEX), offset); 138 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmSYSHUB_DATA), data); 139 } 140 141 void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev, 142 bool enable) 143 { 144 uint32_t def, data; 145 146 /* NBIF_MGCG_CTRL_LCLK */ 147 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK); 148 149 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 150 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; 151 else 152 data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; 153 154 if (def != data) 155 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data); 156 157 /* SYSHUB_MGCG_CTRL_SOCCLK */ 158 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK); 159 160 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 161 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; 162 else 163 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; 164 165 if (def != data) 166 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data); 167 168 /* SYSHUB_MGCG_CTRL_SHUBCLK */ 169 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK); 170 171 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 172 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; 173 else 174 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; 175 176 if (def != data) 177 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data); 178 } 179 180 void nbio_v7_0_ih_control(struct amdgpu_device *adev) 181 { 182 u32 interrupt_cntl; 183 184 /* setup interrupt control */ 185 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL2), adev->dummy_page.addr >> 8); 186 interrupt_cntl = RREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL)); 187 /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi 188 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN 189 */ 190 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0); 191 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */ 192 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0); 193 WREG32(SOC15_REG_OFFSET(NBIO, 0, mmINTERRUPT_CNTL), interrupt_cntl); 194 } 195 196 struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg; 197 struct nbio_pcie_index_data nbio_v7_0_pcie_index_data; 198 199 int nbio_v7_0_init(struct amdgpu_device *adev) 200 { 201 nbio_v7_0_hdp_flush_reg.hdp_flush_req_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ); 202 nbio_v7_0_hdp_flush_reg.hdp_flush_done_offset = SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE); 203 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK; 204 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK; 205 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK; 206 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK; 207 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK; 208 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK; 209 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK; 210 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK; 211 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK; 212 nbio_v7_0_hdp_flush_reg.ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK; 213 nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK; 214 nbio_v7_0_hdp_flush_reg.ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK; 215 216 nbio_v7_0_pcie_index_data.index_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2); 217 nbio_v7_0_pcie_index_data.data_offset = SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2); 218 219 return 0; 220 } 221