drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h

   1 /*
   2  * Copyright 2018 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
  24 #ifndef AMDGPU_DOORBELL_H
  25 #define AMDGPU_DOORBELL_H
  26
  27 /*
  28  * GPU doorbell structures, functions & helpers
  29  */
  30 struct amdgpu_doorbell {
  31         /* doorbell mmio */
  32         resource_size_t         base;
  33         resource_size_t         size;
  34         u32 __iomem             *ptr;
  35
  36         /* Number of doorbells reserved for amdgpu kernel driver */
  37         u32 num_kernel_doorbells;
  38 };
  39
  40 /* Reserved doorbells for amdgpu (including multimedia).
  41  * KFD can use all the rest in the 2M doorbell bar.
  42  * For asic before vega10, doorbell is 32-bit, so the
  43  * index/offset is in dword. For vega10 and after, doorbell
  44  * can be 64-bit, so the index defined is in qword.
  45  */
  46 struct amdgpu_doorbell_index {
  47         uint32_t kiq;
  48         uint32_t mec_ring0;
  49         uint32_t mec_ring1;
  50         uint32_t mec_ring2;
  51         uint32_t mec_ring3;
  52         uint32_t mec_ring4;
  53         uint32_t mec_ring5;
  54         uint32_t mec_ring6;
  55         uint32_t mec_ring7;
  56         uint32_t userqueue_start;
  57         uint32_t userqueue_end;
  58         uint32_t gfx_ring0;
  59         uint32_t gfx_ring1;
  60         uint32_t gfx_userqueue_start;
  61         uint32_t gfx_userqueue_end;
  62         uint32_t sdma_engine[8];
  63         uint32_t mes_ring0;
  64         uint32_t mes_ring1;
  65         uint32_t ih;
  66         union {
  67                 struct {
  68                         uint32_t vcn_ring0_1;
  69                         uint32_t vcn_ring2_3;
  70                         uint32_t vcn_ring4_5;
  71                         uint32_t vcn_ring6_7;
  72                 } vcn;
  73                 struct {
  74                         uint32_t uvd_ring0_1;
  75                         uint32_t uvd_ring2_3;
  76                         uint32_t uvd_ring4_5;
  77                         uint32_t uvd_ring6_7;
  78                         uint32_t vce_ring0_1;
  79                         uint32_t vce_ring2_3;
  80                         uint32_t vce_ring4_5;
  81                         uint32_t vce_ring6_7;
  82                 } uvd_vce;
  83         };
  84         uint32_t first_non_cp;
  85         uint32_t last_non_cp;
  86         uint32_t max_assignment;
  87         /* Per engine SDMA doorbell size in dword */
  88         uint32_t sdma_doorbell_range;
  89 };
  90
  91 typedef enum _AMDGPU_DOORBELL_ASSIGNMENT
  92 {
  93         AMDGPU_DOORBELL_KIQ                     = 0x000,
  94         AMDGPU_DOORBELL_HIQ                     = 0x001,
  95         AMDGPU_DOORBELL_DIQ                     = 0x002,
  96         AMDGPU_DOORBELL_MEC_RING0               = 0x010,
  97         AMDGPU_DOORBELL_MEC_RING1               = 0x011,
  98         AMDGPU_DOORBELL_MEC_RING2               = 0x012,
  99         AMDGPU_DOORBELL_MEC_RING3               = 0x013,
 100         AMDGPU_DOORBELL_MEC_RING4               = 0x014,
 101         AMDGPU_DOORBELL_MEC_RING5               = 0x015,
 102         AMDGPU_DOORBELL_MEC_RING6               = 0x016,
 103         AMDGPU_DOORBELL_MEC_RING7               = 0x017,
 104         AMDGPU_DOORBELL_GFX_RING0               = 0x020,
 105         AMDGPU_DOORBELL_sDMA_ENGINE0            = 0x1E0,
 106         AMDGPU_DOORBELL_sDMA_ENGINE1            = 0x1E1,
 107         AMDGPU_DOORBELL_IH                      = 0x1E8,
 108         AMDGPU_DOORBELL_MAX_ASSIGNMENT          = 0x3FF,
 109         AMDGPU_DOORBELL_INVALID                 = 0xFFFF
 110 } AMDGPU_DOORBELL_ASSIGNMENT;
 111
 112 typedef enum _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT
 113 {
 114         /* Compute + GFX: 0~255 */
 115         AMDGPU_VEGA20_DOORBELL_KIQ                     = 0x000,
 116         AMDGPU_VEGA20_DOORBELL_HIQ                     = 0x001,
 117         AMDGPU_VEGA20_DOORBELL_DIQ                     = 0x002,
 118         AMDGPU_VEGA20_DOORBELL_MEC_RING0               = 0x003,
 119         AMDGPU_VEGA20_DOORBELL_MEC_RING1               = 0x004,
 120         AMDGPU_VEGA20_DOORBELL_MEC_RING2               = 0x005,
 121         AMDGPU_VEGA20_DOORBELL_MEC_RING3               = 0x006,
 122         AMDGPU_VEGA20_DOORBELL_MEC_RING4               = 0x007,
 123         AMDGPU_VEGA20_DOORBELL_MEC_RING5               = 0x008,
 124         AMDGPU_VEGA20_DOORBELL_MEC_RING6               = 0x009,
 125         AMDGPU_VEGA20_DOORBELL_MEC_RING7               = 0x00A,
 126         AMDGPU_VEGA20_DOORBELL_USERQUEUE_START         = 0x00B,
 127         AMDGPU_VEGA20_DOORBELL_USERQUEUE_END           = 0x08A,
 128         AMDGPU_VEGA20_DOORBELL_GFX_RING0               = 0x08B,
 129         /* SDMA:256~335*/
 130         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0            = 0x100,
 131         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE1            = 0x10A,
 132         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE2            = 0x114,
 133         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE3            = 0x11E,
 134         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE4            = 0x128,
 135         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE5            = 0x132,
 136         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE6            = 0x13C,
 137         AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE7            = 0x146,
 138         /* IH: 376~391 */
 139         AMDGPU_VEGA20_DOORBELL_IH                      = 0x178,
 140         /* MMSCH: 392~407
 141          * overlap the doorbell assignment with VCN as they are  mutually exclusive
 142          * VCN engine's doorbell is 32 bit and two VCN ring share one QWORD
 143          */
 144         AMDGPU_VEGA20_DOORBELL64_VCN0_1                  = 0x188, /* VNC0 */
 145         AMDGPU_VEGA20_DOORBELL64_VCN2_3                  = 0x189,
 146         AMDGPU_VEGA20_DOORBELL64_VCN4_5                  = 0x18A,
 147         AMDGPU_VEGA20_DOORBELL64_VCN6_7                  = 0x18B,
 148
 149         AMDGPU_VEGA20_DOORBELL64_VCN8_9                  = 0x18C, /* VNC1 */
 150         AMDGPU_VEGA20_DOORBELL64_VCNa_b                  = 0x18D,
 151         AMDGPU_VEGA20_DOORBELL64_VCNc_d                  = 0x18E,
 152         AMDGPU_VEGA20_DOORBELL64_VCNe_f                  = 0x18F,
 153
 154         AMDGPU_VEGA20_DOORBELL64_UVD_RING0_1             = 0x188,
 155         AMDGPU_VEGA20_DOORBELL64_UVD_RING2_3             = 0x189,
 156         AMDGPU_VEGA20_DOORBELL64_UVD_RING4_5             = 0x18A,
 157         AMDGPU_VEGA20_DOORBELL64_UVD_RING6_7             = 0x18B,
 158
 159         AMDGPU_VEGA20_DOORBELL64_VCE_RING0_1             = 0x18C,
 160         AMDGPU_VEGA20_DOORBELL64_VCE_RING2_3             = 0x18D,
 161         AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5             = 0x18E,
 162         AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7             = 0x18F,
 163
 164         AMDGPU_VEGA20_DOORBELL64_FIRST_NON_CP            = AMDGPU_VEGA20_DOORBELL_sDMA_ENGINE0,
 165         AMDGPU_VEGA20_DOORBELL64_LAST_NON_CP             = AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7,
 166
 167         AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT            = 0x18F,
 168         AMDGPU_VEGA20_DOORBELL_INVALID                   = 0xFFFF
 169 } AMDGPU_VEGA20_DOORBELL_ASSIGNMENT;
 170
 171 typedef enum _AMDGPU_NAVI10_DOORBELL_ASSIGNMENT
 172 {
 173         /* Compute + GFX: 0~255 */
 174         AMDGPU_NAVI10_DOORBELL_KIQ                      = 0x000,
 175         AMDGPU_NAVI10_DOORBELL_HIQ                      = 0x001,
 176         AMDGPU_NAVI10_DOORBELL_DIQ                      = 0x002,
 177         AMDGPU_NAVI10_DOORBELL_MEC_RING0                = 0x003,
 178         AMDGPU_NAVI10_DOORBELL_MEC_RING1                = 0x004,
 179         AMDGPU_NAVI10_DOORBELL_MEC_RING2                = 0x005,
 180         AMDGPU_NAVI10_DOORBELL_MEC_RING3                = 0x006,
 181         AMDGPU_NAVI10_DOORBELL_MEC_RING4                = 0x007,
 182         AMDGPU_NAVI10_DOORBELL_MEC_RING5                = 0x008,
 183         AMDGPU_NAVI10_DOORBELL_MEC_RING6                = 0x009,
 184         AMDGPU_NAVI10_DOORBELL_MEC_RING7                = 0x00A,
 185         AMDGPU_NAVI10_DOORBELL_MES_RING0                = 0x00B,
 186         AMDGPU_NAVI10_DOORBELL_MES_RING1                = 0x00C,
 187         AMDGPU_NAVI10_DOORBELL_USERQUEUE_START          = 0x00D,
 188         AMDGPU_NAVI10_DOORBELL_USERQUEUE_END            = 0x08A,
 189         AMDGPU_NAVI10_DOORBELL_GFX_RING0                = 0x08B,
 190         AMDGPU_NAVI10_DOORBELL_GFX_RING1                = 0x08C,
 191         AMDGPU_NAVI10_DOORBELL_GFX_USERQUEUE_START      = 0x08D,
 192         AMDGPU_NAVI10_DOORBELL_GFX_USERQUEUE_END        = 0x0FF,
 193
 194         /* SDMA:256~335*/
 195         AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0             = 0x100,
 196         AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE1             = 0x10A,
 197         AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE2             = 0x114,
 198         AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE3             = 0x11E,
 199         /* IH: 376~391 */
 200         AMDGPU_NAVI10_DOORBELL_IH                       = 0x178,
 201         /* MMSCH: 392~407
 202          * overlap the doorbell assignment with VCN as they are  mutually exclusive
 203          * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD
 204          */
 205         AMDGPU_NAVI10_DOORBELL64_VCN0_1                 = 0x188, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */
 206         AMDGPU_NAVI10_DOORBELL64_VCN2_3                 = 0x189,
 207         AMDGPU_NAVI10_DOORBELL64_VCN4_5                 = 0x18A,
 208         AMDGPU_NAVI10_DOORBELL64_VCN6_7                 = 0x18B,
 209
 210         AMDGPU_NAVI10_DOORBELL64_VCN8_9                 = 0x18C,
 211         AMDGPU_NAVI10_DOORBELL64_VCNa_b                 = 0x18D,
 212         AMDGPU_NAVI10_DOORBELL64_VCNc_d                 = 0x18E,
 213         AMDGPU_NAVI10_DOORBELL64_VCNe_f                 = 0x18F,
 214
 215         AMDGPU_NAVI10_DOORBELL64_FIRST_NON_CP           = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0,
 216         AMDGPU_NAVI10_DOORBELL64_LAST_NON_CP            = AMDGPU_NAVI10_DOORBELL64_VCNe_f,
 217
 218         AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT           = 0x18F,
 219         AMDGPU_NAVI10_DOORBELL_INVALID                  = 0xFFFF
 220 } AMDGPU_NAVI10_DOORBELL_ASSIGNMENT;
 221
 222 /*
 223  * 64bit doorbell, offset are in QWORD, occupy 2KB doorbell space
 224  */
 225 typedef enum _AMDGPU_DOORBELL64_ASSIGNMENT
 226 {
 227         /*
 228          * All compute related doorbells: kiq, hiq, diq, traditional compute queue, user queue, should locate in
 229          * a continues range so that programming CP_MEC_DOORBELL_RANGE_LOWER/UPPER can cover this range.
 230          *  Compute related doorbells are allocated from 0x00 to 0x8a
 231          */
 232
 233
 234         /* kernel scheduling */
 235         AMDGPU_DOORBELL64_KIQ                     = 0x00,
 236
 237         /* HSA interface queue and debug queue */
 238         AMDGPU_DOORBELL64_HIQ                     = 0x01,
 239         AMDGPU_DOORBELL64_DIQ                     = 0x02,
 240
 241         /* Compute engines */
 242         AMDGPU_DOORBELL64_MEC_RING0               = 0x03,
 243         AMDGPU_DOORBELL64_MEC_RING1               = 0x04,
 244         AMDGPU_DOORBELL64_MEC_RING2               = 0x05,
 245         AMDGPU_DOORBELL64_MEC_RING3               = 0x06,
 246         AMDGPU_DOORBELL64_MEC_RING4               = 0x07,
 247         AMDGPU_DOORBELL64_MEC_RING5               = 0x08,
 248         AMDGPU_DOORBELL64_MEC_RING6               = 0x09,
 249         AMDGPU_DOORBELL64_MEC_RING7               = 0x0a,
 250
 251         /* User queue doorbell range (128 doorbells) */
 252         AMDGPU_DOORBELL64_USERQUEUE_START         = 0x0b,
 253         AMDGPU_DOORBELL64_USERQUEUE_END           = 0x8a,
 254
 255         /* Graphics engine */
 256         AMDGPU_DOORBELL64_GFX_RING0               = 0x8b,
 257
 258         /*
 259          * Other graphics doorbells can be allocated here: from 0x8c to 0xdf
 260          * Graphics voltage island aperture 1
 261          * default non-graphics QWORD index is 0xe0 - 0xFF inclusive
 262          */
 263
 264         /* For vega10 sriov, the sdma doorbell must be fixed as follow
 265          * to keep the same setting with host driver, or it will
 266          * happen conflicts
 267          */
 268         AMDGPU_DOORBELL64_sDMA_ENGINE0            = 0xF0,
 269         AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE0     = 0xF1,
 270         AMDGPU_DOORBELL64_sDMA_ENGINE1            = 0xF2,
 271         AMDGPU_DOORBELL64_sDMA_HI_PRI_ENGINE1     = 0xF3,
 272
 273         /* Interrupt handler */
 274         AMDGPU_DOORBELL64_IH                      = 0xF4,  /* For legacy interrupt ring buffer */
 275         AMDGPU_DOORBELL64_IH_RING1                = 0xF5,  /* For page migration request log */
 276         AMDGPU_DOORBELL64_IH_RING2                = 0xF6,  /* For page migration translation/invalidation log */
 277
 278         /* VCN engine use 32 bits doorbell  */
 279         AMDGPU_DOORBELL64_VCN0_1                  = 0xF8, /* lower 32 bits for VNC0 and upper 32 bits for VNC1 */
 280         AMDGPU_DOORBELL64_VCN2_3                  = 0xF9,
 281         AMDGPU_DOORBELL64_VCN4_5                  = 0xFA,
 282         AMDGPU_DOORBELL64_VCN6_7                  = 0xFB,
 283
 284         /* overlap the doorbell assignment with VCN as they are  mutually exclusive
 285          * VCE engine's doorbell is 32 bit and two VCE ring share one QWORD
 286          */
 287         AMDGPU_DOORBELL64_UVD_RING0_1             = 0xF8,
 288         AMDGPU_DOORBELL64_UVD_RING2_3             = 0xF9,
 289         AMDGPU_DOORBELL64_UVD_RING4_5             = 0xFA,
 290         AMDGPU_DOORBELL64_UVD_RING6_7             = 0xFB,
 291
 292         AMDGPU_DOORBELL64_VCE_RING0_1             = 0xFC,
 293         AMDGPU_DOORBELL64_VCE_RING2_3             = 0xFD,
 294         AMDGPU_DOORBELL64_VCE_RING4_5             = 0xFE,
 295         AMDGPU_DOORBELL64_VCE_RING6_7             = 0xFF,
 296
 297         AMDGPU_DOORBELL64_FIRST_NON_CP            = AMDGPU_DOORBELL64_sDMA_ENGINE0,
 298         AMDGPU_DOORBELL64_LAST_NON_CP             = AMDGPU_DOORBELL64_VCE_RING6_7,
 299
 300         AMDGPU_DOORBELL64_MAX_ASSIGNMENT          = 0xFF,
 301         AMDGPU_DOORBELL64_INVALID                 = 0xFFFF
 302 } AMDGPU_DOORBELL64_ASSIGNMENT;
 303
 304 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index);
 305 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v);
 306 u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index);
 307 void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v);
 308
 309 #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))
 310 #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v))
 311 #define RDOORBELL64(index) amdgpu_mm_rdoorbell64(adev, (index))
 312 #define WDOORBELL64(index, v) amdgpu_mm_wdoorbell64(adev, (index), (v))
 313
 314 #endif