1 /* $NetBSD: amdgpu_doorbell.h,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */ 2 3 /* 4 * Copyright 2018 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 26 /* 27 * GPU doorbell structures, functions & helpers 28 */ 29 struct amdgpu_doorbell { 30 /* doorbell mmio */ 31 resource_size_t base; 32 resource_size_t size; 33 #ifdef __NetBSD__ 34 bus_space_tag_t bst; 35 bus_space_handle_t bsh; 36 #else 37 u32 __iomem *ptr; 38 #endif 39 u32 num_doorbells; /* Number of doorbells actually reserved for amdgpu. */ 40 }; 41 42 /* Reserved doorbells for amdgpu (including multimedia). 43 * KFD can use all the rest in the 2M doorbell bar. 44 * For asic before vega10, doorbell is 32-bit, so the 45 * index/offset is in dword. For vega10 and after, doorbell 46 * can be 64-bit, so the index defined is in qword. 47 */ 48 struct amdgpu_doorbell_index { 49 uint32_t kiq; 50 uint32_t mec_ring0; 51 uint32_t mec_ring1; 52 uint32_t mec_ring2; 53 uint32_t mec_ring3; 54 uint32_t mec_ring4; 55 uint32_t mec_ring5; 56 uint32_t mec_ring6; 57 uint32_t mec_ring7; 58 uint32_t userqueue_start; 59 uint32_t userqueue_end; 60 uint32_t gfx_ring0; 61 uint32_t gfx_ring1; 62 uint32_t sdma_engine[8]; 63 uint32_t ih; 64 union { 65 struct { 66 uint32_t vcn_ring0_1; 67 uint32_t vcn_ring2_3; 68 uint32_t vcn_ring4_5; 69 uint32_t vcn_ring6_7; 70 } vcn; 71 struct { 72 uint32_t uvd_ring0_1; 73 uint32_t uvd_ring2_3; 74 uint32_t uvd_ring4_5; 75 uint32_t uvd_ring6_7; 76 uint32_t vce_ring0_1; 77 uint32_t vce_ring2_3; 78 uint32_t vce_ring4_5; 79 uint32_t vce_ring6_7; 80 } uvd_vce; 81 }; 82 uint32_t first_non_cp; 83 uint32_t last_non_cp; 84 uint32_t max_assignment; 85 /* Per engine SDMA doorbell size in dword */ 86 uint32_t sdma_doorbell_range; 87 }; 88 89 typedef enum _AMDGPU_DOORBELL_ASSIGNMENT 90 { 91 AMDGPU_DOORBELL_KIQ = 0x000, 92 AMDGPU_DOORBELL_HIQ = 0x001, 93 AMDGPU_DOORBELL_DIQ = 0x002, 94 AMDGPU_DOORBELL_MEC_RING0 = 0x010, 95 AMDGPU_DOORBELL_MEC_RING1 = 0x011, 96 AMDGPU_DOORBELL_MEC_RING2 = 0x012, 97 AMDGPU_DOORBELL_MEC_RING3 = 0x013, 98 AMDGPU_DOORBELL_MEC_RING4 = 0x014, 99 AMDGPU_DOORBELL_MEC_RING5 = 0x015, 100 AMDGPU_DOORBELL_MEC_RING6 = 0x016, 101 AMDGPU_DOORBELL_MEC_RING7 = 0x017, 102 AMDGPU_DOORBELL_GFX_RING0 = 0x020, 103 AMDGPU_DOORBELL_sDMA_ENGINE0 = 0x1E0, 104 AMDGPU_DOORBELL_sDMA_ENGINE1 = 0x1E1, 105 AMDGPU_DOORBELL_IH = 0x1E8, 106 AMDGPU_DOORBELL_MAX_ASSIGNMENT = 0x3FF, 107 AMDGPU_DOORBELL_INVALID = 0xFFFF 108 } AMDGPU_DOORBELL_ASSIGNMENT; 109 110 typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT 111 { 112 /* Compute + GFX: 0~255 */ 113 AMDGPU_VEGA20_DOORBELL_KIQ = 0x000, 114 AMDGPU_VEGA20_DOORBELL_HIQ = 0x001, 115 AMDGPU_VEGA20_DOORBELL_DIQ = 0x002, 116 AMDGPU_VEGA20_DOORBELL_MEC_RING0 = 0x003, 117 AMDGPU_VEGA20_DOORBELL_MEC_RING1 = 0x004, 118 AMDGPU_VEGA20_DOORBELL_MEC_RING2 = 0x005, 119 AMDGPU_VEGA20_DOORBELL_MEC_RING3 = 0x006, 120 AMDGPU_VEGA20_DOORBELL_MEC_RING4 = 0x007, 121 AMDGPU_VEGA20_DOORBELL_MEC_RING5 = 0x008, 122 AMDGPU_VEGA20_DOORBELL_MEC_RING6 = 0x009, 123 AMDGPU_VEGA20_DOORBELL_MEC_RING7 = 0x00A, 124 AMDGPU_VEGA20_DOORBELL_USERQUEUE_START = 0x00B, 125 AMDGPU_VEGA20_DOORBELL_USERQUEUE_END = 0x08A, 126 AMDGPU_VEGA20_DOORBELL_GFX_RING0 = 0x08B, 127 /* SDMA:256~335*/ 128 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0 = 0x100, 129 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE1 = 0x10A, 130 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE2 = 0x114, 131 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE3 = 0x11E, 132 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE4 = 0x128, 133 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE5 = 0x132, 134 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE6 = 0x13C, 135 AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE7 = 0x146, 136 /* IH: 376~391 */ 137 AMDGPU_VEGA20_DOORBELL_IH = 0x178, 138 /* MMSCH: 392~407 139 * overlap the doorbell assignment with VCN as they are mutually exclusive 140 * VCN engine's doorbell is 32 bit and two VCN ring share one QWORD 141 */ 142 AMDGPU_VEGA20_DOORBELL64_VCN0_1 = 0x188, /* VNC0 */ 143 AMDGPU_VEGA20_DOORBELL64_VCN2_3 = 0x189, 144 AMDGPU_VEGA20_DOORBELL64_VCN4_5 = 0x18A, 145 AMDGPU_VEGA20_DOORBELL64_VCN6_7 = 0x18B, 146 147 AMDGPU_VEGA20_DOORBELL64_VCN8_9 = 0x18C, /* VNC1 */ 148 AMDGPU_VEGA20_DOORBELL64_VCNa_b = 0x18D, 149 AMDGPU_VEGA20_DOORBELL64_VCNc_d = 0x18E, 150 AMDGPU_VEGA20_DOORBELL64_VCNe_f = 0x18F, 151 152 AMDGPU_VEGA20_DOORBELL64_UVD_RING0_1 = 0x188, 153 AMDGPU_VEGA20_DOORBELL64_UVD_RING2_3 = 0x189, 154 AMDGPU_VEGA20_DOORBELL64_UVD_RING4_5 = 0x18A, 155 AMDGPU_VEGA20_DOORBELL64_UVD_RING6_7 = 0x18B, 156 157 AMDGPU_VEGA20_DOORBELL64_VCE_RING0_1 = 0x18C, 158 AMDGPU_VEGA20_DOORBELL64_VCE_RING2_3 = 0x18D, 159 AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5 = 0x18E, 160 AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7 = 0x18F, 161 162 AMDGPU_VEGA20_DOORBELL64_FIRST_NON_CP = AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0, 163 AMDGPU_VEGA20_DOORBELL64_LAST_NON_CP = AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7, 164 165 AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT = 0x18F, 166 AMDGPU_VEGA20_DOORBELL_INVALID = 0xFFFF 167 } AMDGPU_VEGA20_DOORBELL_ASSIGNMENT; 168 169 typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT 170 { 171 /* Compute + GFX: 0~255 */ 172 AMDGPU_NAVI10_DOORBELL_KIQ = 0x000, 173 AMDGPU_NAVI10_DOORBELL_HIQ = 0x001, 174 AMDGPU_NAVI10_DOORBELL_DIQ = 0x002, 175 AMDGPU_NAVI10_DOORBELL_MEC_RING0 = 0x003, 176 AMDGPU_NAVI10_DOORBELL_MEC_RING1 = 0x004, 177 AMDGPU_NAVI10_DOORBELL_MEC_RING2 = 0x005, 178 AMDGPU_NAVI10_DOORBELL_MEC_RING3 = 0x006, 179 AMDGPU_NAVI10_DOORBELL_MEC_RING4 = 0x007, 180 AMDGPU_NAVI10_DOORBELL_MEC_RING5 = 0x008, 181 AMDGPU_NAVI10_DOORBELL_MEC_RING6 = 0x009, 182 AMDGPU_NAVI10_DOORBELL_MEC_RING7 = 0x00A, 183 AMDGPU_NAVI10_DOORBELL_USERQUEUE_START = 0x00B, 184 AMDGPU_NAVI10_DOORBELL_USERQUEUE_END = 0x08A, 185 AMDGPU_NAVI10_DOORBELL_GFX_RING0 = 0x08B, 186 AMDGPU_NAVI10_DOORBELL_GFX_RING1 = 0x08C, 187 /* SDMA:256~335*/ 188 AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0 = 0x100, 189 AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE1 = 0x10A, 190 /* IH: 376~391 */ 191 AMDGPU_NAVI10_DOORBELL_IH = 0x178, 192 /* MMSCH: 392~407 193 * overlap the doorbell assignment with VCN as they are mutually exclusive 194 * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD 195 */ 196 AMDGPU_NAVI10_DOORBELL64_VCN0_1 = 0x188, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ 197 AMDGPU_NAVI10_DOORBELL64_VCN2_3 = 0x189, 198 AMDGPU_NAVI10_DOORBELL64_VCN4_5 = 0x18A, 199 AMDGPU_NAVI10_DOORBELL64_VCN6_7 = 0x18B, 200 201 AMDGPU_NAVI10_DOORBELL64_FIRST_NON_CP = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0, 202 AMDGPU_NAVI10_DOORBELL64_LAST_NON_CP = AMDGPU_NAVI10_DOORBELL64_VCN6_7, 203 204 AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT = 0x18F, 205 AMDGPU_NAVI10_DOORBELL_INVALID = 0xFFFF 206 } AMDGPU_NAVI10_DOORBELL_ASSIGNMENT; 207 208 /* 209 * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space 210 */ 211 typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT 212 { 213 /* 214 * All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should locate in 215 * a continues range so that programming CP_MEC_DOORBELL_RANGE_LOWER/UPPER can cover this range. 216 * Compute related doorbells are allocated from 0x00 to 0x8a 217 */ 218 219 220 /* kernel scheduling */ 221 AMDGPU_DOORBELL64_KIQ = 0x00, 222 223 /* HSA interface queue and debug queue */ 224 AMDGPU_DOORBELL64_HIQ = 0x01, 225 AMDGPU_DOORBELL64_DIQ = 0x02, 226 227 /* Compute engines */ 228 AMDGPU_DOORBELL64_MEC_RING0 = 0x03, 229 AMDGPU_DOORBELL64_MEC_RING1 = 0x04, 230 AMDGPU_DOORBELL64_MEC_RING2 = 0x05, 231 AMDGPU_DOORBELL64_MEC_RING3 = 0x06, 232 AMDGPU_DOORBELL64_MEC_RING4 = 0x07, 233 AMDGPU_DOORBELL64_MEC_RING5 = 0x08, 234 AMDGPU_DOORBELL64_MEC_RING6 = 0x09, 235 AMDGPU_DOORBELL64_MEC_RING7 = 0x0a, 236 237 /* User queue doorbell range (128 doorbells) */ 238 AMDGPU_DOORBELL64_USERQUEUE_START = 0x0b, 239 AMDGPU_DOORBELL64_USERQUEUE_END = 0x8a, 240 241 /* Graphics engine */ 242 AMDGPU_DOORBELL64_GFX_RING0 = 0x8b, 243 244 /* 245 * Other graphics doorbells can be allocated here: from 0x8c to 0xdf 246 * Graphics voltage island aperture 1 247 * default non-graphics QWORD index is 0xe0 - 0xFF inclusive 248 */ 249 250 /* For vega10 sriov, the sdma doorbell must be fixed as follow 251 * to keep the same setting with host driver, or it will 252 * happen conflicts 253 */ 254 AMDGPU_DOORBELL64_sDMA_ENGINE0 = 0xF0, 255 AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE0 = 0xF1, 256 AMDGPU_DOORBELL64_sDMA_ENGINE1 = 0xF2, 257 AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE1 = 0xF3, 258 259 /* Interrupt handler */ 260 AMDGPU_DOORBELL64_IH = 0xF4, /* For legacy interrupt ring buffer */ 261 AMDGPU_DOORBELL64_IH_RING1 = 0xF5, /* For page migration request log */ 262 AMDGPU_DOORBELL64_IH_RING2 = 0xF6, /* For page migration translation/invalidation log */ 263 264 /* VCN engine use 32 bits doorbell */ 265 AMDGPU_DOORBELL64_VCN0_1 = 0xF8, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */ 266 AMDGPU_DOORBELL64_VCN2_3 = 0xF9, 267 AMDGPU_DOORBELL64_VCN4_5 = 0xFA, 268 AMDGPU_DOORBELL64_VCN6_7 = 0xFB, 269 270 /* overlap the doorbell assignment with VCN as they are mutually exclusive 271 * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD 272 */ 273 AMDGPU_DOORBELL64_UVD_RING0_1 = 0xF8, 274 AMDGPU_DOORBELL64_UVD_RING2_3 = 0xF9, 275 AMDGPU_DOORBELL64_UVD_RING4_5 = 0xFA, 276 AMDGPU_DOORBELL64_UVD_RING6_7 = 0xFB, 277 278 AMDGPU_DOORBELL64_VCE_RING0_1 = 0xFC, 279 AMDGPU_DOORBELL64_VCE_RING2_3 = 0xFD, 280 AMDGPU_DOORBELL64_VCE_RING4_5 = 0xFE, 281 AMDGPU_DOORBELL64_VCE_RING6_7 = 0xFF, 282 283 AMDGPU_DOORBELL64_FIRST_NON_CP = AMDGPU_DOORBELL64_sDMA_ENGINE0, 284 AMDGPU_DOORBELL64_LAST_NON_CP = AMDGPU_DOORBELL64_VCE_RING6_7, 285 286 AMDGPU_DOORBELL64_MAX_ASSIGNMENT = 0xFF, 287 AMDGPU_DOORBELL64_INVALID = 0xFFFF 288 } AMDGPU_DOORBELL64_ASSIGNMENT; 289 290 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index); 291 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v); 292 u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index); 293 void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v); 294 295 #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index)) 296 #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v)) 297 #define RDOORBELL64(index) amdgpu_mm_rdoorbell64(adev, (index)) 298 #define WDOORBELL64(index, v) amdgpu_mm_wdoorbell64(adev, (index), (v)) 299 300
Indexes created Sat Sep 20 22:09:52 GMT 2025