1/* $NetBSD: amdgpu_nbio_v7_0.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */ 2 3/* 4 * Copyright 2016 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25#include <sys/cdefs.h> 26__KERNEL_RCSID(0, "$NetBSD: amdgpu_nbio_v7_0.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $"); 27 28#include "amdgpu.h" 29#include "amdgpu_atombios.h" 30#include "nbio_v7_0.h" 31 32#include "nbio/nbio_7_0_default.h" 33#include "nbio/nbio_7_0_offset.h" 34#include "nbio/nbio_7_0_sh_mask.h" 35#include "nbio/nbio_7_0_smn.h" 36#include "vega10_enum.h" 37#include <uapi/linux/kfd_ioctl.h> 38 39#define smnNBIF_MGCG_CTRL_LCLK 0x1013a05c 40 41static void nbio_v7_0_remap_hdp_registers(struct amdgpu_device *adev) 42{ 43 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL, 44 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL); 45 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL, 46 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL); 47} 48 49static u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev) 50{ 51 u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); 52 53 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; 54 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; 55 56 return tmp; 57} 58 59static void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable) 60{ 61 if (enable) 62 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 63 BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 64 else 65 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0); 66} 67 68static void nbio_v7_0_hdp_flush(struct amdgpu_device *adev, 69 struct amdgpu_ring *ring) 70{ 71 if (!ring || !ring->funcs->emit_wreg) 72 WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); 73 else 74 amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); 75} 76 77static u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev) 78{ 79 return RREG32_SOC15(NBIO, 0, mmRCC_CONFIG_MEMSIZE); 80} 81 82static void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance, 83 bool use_doorbell, int doorbell_index, int doorbell_size) 84{ 85 u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) : 86 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE); 87 88 u32 doorbell_range = RREG32(reg); 89 90 if (use_doorbell) { 91 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index); 92 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, doorbell_size); 93 } else 94 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0); 95 96 WREG32(reg, doorbell_range); 97} 98 99static void nbio_v7_0_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell, 100 int doorbell_index, int instance) 101{ 102 u32 reg = SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH0_DOORBELL_RANGE); 103 104 u32 doorbell_range = RREG32(reg); 105 106 if (use_doorbell) { 107 doorbell_range = REG_SET_FIELD(doorbell_range, 108 BIF_MMSCH0_DOORBELL_RANGE, OFFSET, 109 doorbell_index); 110 doorbell_range = REG_SET_FIELD(doorbell_range, 111 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 8); 112 } else 113 doorbell_range = REG_SET_FIELD(doorbell_range, 114 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 0); 115 116 WREG32(reg, doorbell_range); 117} 118 119static void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev, 120 bool enable) 121{ 122 WREG32_FIELD15(NBIO, 0, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, enable ? 1 : 0); 123} 124 125static void nbio_v7_0_enable_doorbell_selfring_aperture(struct amdgpu_device *adev, 126 bool enable) 127{ 128 129} 130 131static void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev, 132 bool use_doorbell, int doorbell_index) 133{ 134 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE); 135 136 if (use_doorbell) { 137 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index); 138 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2); 139 } else 140 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0); 141 142 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range); 143} 144 145static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset) 146{ 147 uint32_t data; 148 149 WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset); 150 data = RREG32_SOC15(NBIO, 0, mmSYSHUB_DATA); 151 152 return data; 153} 154 155static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset, 156 uint32_t data) 157{ 158 WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset); 159 WREG32_SOC15(NBIO, 0, mmSYSHUB_DATA, data); 160} 161 162static void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev, 163 bool enable) 164{ 165 uint32_t def, data; 166 167 /* NBIF_MGCG_CTRL_LCLK */ 168 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK); 169 170 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 171 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; 172 else 173 data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK; 174 175 if (def != data) 176 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data); 177 178 /* SYSHUB_MGCG_CTRL_SOCCLK */ 179 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK); 180 181 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 182 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; 183 else 184 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK; 185 186 if (def != data) 187 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data); 188 189 /* SYSHUB_MGCG_CTRL_SHUBCLK */ 190 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK); 191 192 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 193 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; 194 else 195 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK; 196 197 if (def != data) 198 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data); 199} 200 201static void nbio_v7_0_update_medium_grain_light_sleep(struct amdgpu_device *adev, 202 bool enable) 203{ 204 uint32_t def, data; 205 206 def = data = RREG32_PCIE(smnPCIE_CNTL2); 207 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { 208 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 209 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 210 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 211 } else { 212 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 213 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 214 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 215 } 216 217 if (def != data) 218 WREG32_PCIE(smnPCIE_CNTL2, data); 219} 220 221static void nbio_v7_0_get_clockgating_state(struct amdgpu_device *adev, 222 u32 *flags) 223{ 224 int data; 225 226 /* AMD_CG_SUPPORT_BIF_MGCG */ 227 data = RREG32_PCIE(smnCPM_CONTROL); 228 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK) 229 *flags |= AMD_CG_SUPPORT_BIF_MGCG; 230 231 /* AMD_CG_SUPPORT_BIF_LS */ 232 data = RREG32_PCIE(smnPCIE_CNTL2); 233 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK) 234 *flags |= AMD_CG_SUPPORT_BIF_LS; 235} 236 237static void nbio_v7_0_ih_control(struct amdgpu_device *adev) 238{ 239 u32 interrupt_cntl; 240 241 /* setup interrupt control */ 242 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8); 243 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL); 244 /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi 245 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN 246 */ 247 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0); 248 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */ 249 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0); 250 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl); 251} 252 253static u32 nbio_v7_0_get_hdp_flush_req_offset(struct amdgpu_device *adev) 254{ 255 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ); 256} 257 258static u32 nbio_v7_0_get_hdp_flush_done_offset(struct amdgpu_device *adev) 259{ 260 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE); 261} 262 263static u32 nbio_v7_0_get_pcie_index_offset(struct amdgpu_device *adev) 264{ 265 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2); 266} 267 268static u32 nbio_v7_0_get_pcie_data_offset(struct amdgpu_device *adev) 269{ 270 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2); 271} 272 273const struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg = { 274 .ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK, 275 .ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK, 276 .ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK, 277 .ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK, 278 .ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK, 279 .ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK, 280 .ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK, 281 .ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK, 282 .ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK, 283 .ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK, 284 .ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK, 285 .ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK, 286}; 287 288static void nbio_v7_0_detect_hw_virt(struct amdgpu_device *adev) 289{ 290 if (is_virtual_machine()) /* passthrough mode exclus sriov mod */ 291 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; 292} 293 294static void nbio_v7_0_init_registers(struct amdgpu_device *adev) 295{ 296 297} 298 299const struct amdgpu_nbio_funcs nbio_v7_0_funcs = { 300 .get_hdp_flush_req_offset = nbio_v7_0_get_hdp_flush_req_offset, 301 .get_hdp_flush_done_offset = nbio_v7_0_get_hdp_flush_done_offset, 302 .get_pcie_index_offset = nbio_v7_0_get_pcie_index_offset, 303 .get_pcie_data_offset = nbio_v7_0_get_pcie_data_offset, 304 .get_rev_id = nbio_v7_0_get_rev_id, 305 .mc_access_enable = nbio_v7_0_mc_access_enable, 306 .hdp_flush = nbio_v7_0_hdp_flush, 307 .get_memsize = nbio_v7_0_get_memsize, 308 .sdma_doorbell_range = nbio_v7_0_sdma_doorbell_range, 309 .vcn_doorbell_range = nbio_v7_0_vcn_doorbell_range, 310 .enable_doorbell_aperture = nbio_v7_0_enable_doorbell_aperture, 311 .enable_doorbell_selfring_aperture = nbio_v7_0_enable_doorbell_selfring_aperture, 312 .ih_doorbell_range = nbio_v7_0_ih_doorbell_range, 313 .update_medium_grain_clock_gating = nbio_v7_0_update_medium_grain_clock_gating, 314 .update_medium_grain_light_sleep = nbio_v7_0_update_medium_grain_light_sleep, 315 .get_clockgating_state = nbio_v7_0_get_clockgating_state, 316 .ih_control = nbio_v7_0_ih_control, 317 .init_registers = nbio_v7_0_init_registers, 318 .detect_hw_virt = nbio_v7_0_detect_hw_virt, 319 .remap_hdp_registers = nbio_v7_0_remap_hdp_registers, 320}; 321