1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * Copyright (C) 2015 Etnaviv Project 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef __ETNAVIV_DRM_H__ 19 #define __ETNAVIV_DRM_H__ 20 21 #include "drm.h" 22 23 #if defined(__cplusplus) 24 extern "C" { 25 #endif 26 27 /* Please note that modifications to all structs defined here are 28 * subject to backwards-compatibility constraints: 29 * 1) Do not use pointers, use __u64 instead for 32 bit / 64 bit 30 * user/kernel compatibility 31 * 2) Keep fields aligned to their size 32 * 3) Because of how drm_ioctl() works, we can add new fields at 33 * the end of an ioctl if some care is taken: drm_ioctl() will 34 * zero out the new fields at the tail of the ioctl, so a zero 35 * value should have a backwards compatible meaning. And for 36 * output params, userspace won't see the newly added output 37 * fields.. so that has to be somehow ok. 38 */ 39 40 /* timeouts are specified in clock-monotonic absolute times (to simplify 41 * restarting interrupted ioctls). The following struct is logically the 42 * same as 'struct timespec' but 32/64b ABI safe. 43 */ 44 struct drm_etnaviv_timespec { 45 __s64 tv_sec; /* seconds */ 46 __s64 tv_nsec; /* nanoseconds */ 47 }; 48 49 #define ETNAVIV_PARAM_GPU_MODEL 0x01 50 #define ETNAVIV_PARAM_GPU_REVISION 0x02 51 #define ETNAVIV_PARAM_GPU_FEATURES_0 0x03 52 #define ETNAVIV_PARAM_GPU_FEATURES_1 0x04 53 #define ETNAVIV_PARAM_GPU_FEATURES_2 0x05 54 #define ETNAVIV_PARAM_GPU_FEATURES_3 0x06 55 #define ETNAVIV_PARAM_GPU_FEATURES_4 0x07 56 #define ETNAVIV_PARAM_GPU_FEATURES_5 0x08 57 #define ETNAVIV_PARAM_GPU_FEATURES_6 0x09 58 #define ETNAVIV_PARAM_GPU_FEATURES_7 0x0a 59 #define ETNAVIV_PARAM_GPU_FEATURES_8 0x0b 60 #define ETNAVIV_PARAM_GPU_FEATURES_9 0x0c 61 #define ETNAVIV_PARAM_GPU_FEATURES_10 0x0d 62 #define ETNAVIV_PARAM_GPU_FEATURES_11 0x0e 63 #define ETNAVIV_PARAM_GPU_FEATURES_12 0x0f 64 65 #define ETNAVIV_PARAM_GPU_STREAM_COUNT 0x10 66 #define ETNAVIV_PARAM_GPU_REGISTER_MAX 0x11 67 #define ETNAVIV_PARAM_GPU_THREAD_COUNT 0x12 68 #define ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE 0x13 69 #define ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT 0x14 70 #define ETNAVIV_PARAM_GPU_PIXEL_PIPES 0x15 71 #define ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE 0x16 72 #define ETNAVIV_PARAM_GPU_BUFFER_SIZE 0x17 73 #define ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT 0x18 74 #define ETNAVIV_PARAM_GPU_NUM_CONSTANTS 0x19 75 #define ETNAVIV_PARAM_GPU_NUM_VARYINGS 0x1a 76 #define ETNAVIV_PARAM_SOFTPIN_START_ADDR 0x1b 77 #define ETNAVIV_PARAM_GPU_PRODUCT_ID 0x1c 78 #define ETNAVIV_PARAM_GPU_CUSTOMER_ID 0x1d 79 #define ETNAVIV_PARAM_GPU_ECO_ID 0x1e 80 81 #define ETNA_MAX_PIPES 4 82 83 struct drm_etnaviv_param { 84 __u32 pipe; /* in */ 85 __u32 param; /* in, ETNAVIV_PARAM_x */ 86 __u64 value; /* out (get_param) or in (set_param) */ 87 }; 88 89 /* 90 * GEM buffers: 91 */ 92 93 #define ETNA_BO_CACHE_MASK 0x000f0000 94 /* cache modes */ 95 #define ETNA_BO_CACHED 0x00010000 96 #define ETNA_BO_WC 0x00020000 97 #define ETNA_BO_UNCACHED 0x00040000 98 /* map flags */ 99 #define ETNA_BO_FORCE_MMU 0x00100000 100 101 struct drm_etnaviv_gem_new { 102 __u64 size; /* in */ 103 __u32 flags; /* in, mask of ETNA_BO_x */ 104 __u32 handle; /* out */ 105 }; 106 107 struct drm_etnaviv_gem_info { 108 __u32 handle; /* in */ 109 __u32 pad; 110 __u64 offset; /* out, offset to pass to mmap() */ 111 }; 112 113 #define ETNA_PREP_READ 0x01 114 #define ETNA_PREP_WRITE 0x02 115 #define ETNA_PREP_NOSYNC 0x04 116 117 struct drm_etnaviv_gem_cpu_prep { 118 __u32 handle; /* in */ 119 __u32 op; /* in, mask of ETNA_PREP_x */ 120 struct drm_etnaviv_timespec timeout; /* in */ 121 }; 122 123 struct drm_etnaviv_gem_cpu_fini { 124 __u32 handle; /* in */ 125 __u32 flags; /* in, placeholder for now, no defined values */ 126 }; 127 128 /* 129 * Cmdstream Submission: 130 */ 131 132 /* The value written into the cmdstream is logically: 133 * relocbuf->gpuaddr + reloc_offset 134 * 135 * NOTE that reloc's must be sorted by order of increasing submit_offset, 136 * otherwise EINVAL. 137 */ 138 struct drm_etnaviv_gem_submit_reloc { 139 __u32 submit_offset; /* in, offset from submit_bo */ 140 __u32 reloc_idx; /* in, index of reloc_bo buffer */ 141 __u64 reloc_offset; /* in, offset from start of reloc_bo */ 142 __u32 flags; /* in, placeholder for now, no defined values */ 143 }; 144 145 /* Each buffer referenced elsewhere in the cmdstream submit (ie. the 146 * cmdstream buffer(s) themselves or reloc entries) has one (and only 147 * one) entry in the submit->bos[] table. 148 * 149 * As a optimization, the current buffer (gpu virtual address) can be 150 * passed back through the 'presumed' field. If on a subsequent reloc, 151 * userspace passes back a 'presumed' address that is still valid, 152 * then patching the cmdstream for this entry is skipped. This can 153 * avoid kernel needing to map/access the cmdstream bo in the common 154 * case. 155 * If the submit is a softpin submit (ETNA_SUBMIT_SOFTPIN) the 'presumed' 156 * field is interpreted as the fixed location to map the bo into the gpu 157 * virtual address space. If the kernel is unable to map the buffer at 158 * this location the submit will fail. This means userspace is responsible 159 * for the whole gpu virtual address management. 160 */ 161 #define ETNA_SUBMIT_BO_READ 0x0001 162 #define ETNA_SUBMIT_BO_WRITE 0x0002 163 struct drm_etnaviv_gem_submit_bo { 164 __u32 flags; /* in, mask of ETNA_SUBMIT_BO_x */ 165 __u32 handle; /* in, GEM handle */ 166 __u64 presumed; /* in/out, presumed buffer address */ 167 }; 168 169 /* performance monitor request (pmr) */ 170 #define ETNA_PM_PROCESS_PRE 0x0001 171 #define ETNA_PM_PROCESS_POST 0x0002 172 struct drm_etnaviv_gem_submit_pmr { 173 __u32 flags; /* in, when to process request (ETNA_PM_PROCESS_x) */ 174 __u8 domain; /* in, pm domain */ 175 __u8 pad; 176 __u16 signal; /* in, pm signal */ 177 __u32 sequence; /* in, sequence number */ 178 __u32 read_offset; /* in, offset from read_bo */ 179 __u32 read_idx; /* in, index of read_bo buffer */ 180 }; 181 182 /* Each cmdstream submit consists of a table of buffers involved, and 183 * one or more cmdstream buffers. This allows for conditional execution 184 * (context-restore), and IB buffers needed for per tile/bin draw cmds. 185 */ 186 #define ETNA_SUBMIT_NO_IMPLICIT 0x0001 187 #define ETNA_SUBMIT_FENCE_FD_IN 0x0002 188 #define ETNA_SUBMIT_FENCE_FD_OUT 0x0004 189 #define ETNA_SUBMIT_SOFTPIN 0x0008 190 #define ETNA_SUBMIT_FLAGS (ETNA_SUBMIT_NO_IMPLICIT | \ 191 ETNA_SUBMIT_FENCE_FD_IN | \ 192 ETNA_SUBMIT_FENCE_FD_OUT| \ 193 ETNA_SUBMIT_SOFTPIN) 194 #define ETNA_PIPE_3D 0x00 195 #define ETNA_PIPE_2D 0x01 196 #define ETNA_PIPE_VG 0x02 197 struct drm_etnaviv_gem_submit { 198 __u32 fence; /* out */ 199 __u32 pipe; /* in */ 200 __u32 exec_state; /* in, initial execution state (ETNA_PIPE_x) */ 201 __u32 nr_bos; /* in, number of submit_bo's */ 202 __u32 nr_relocs; /* in, number of submit_reloc's */ 203 __u32 stream_size; /* in, cmdstream size */ 204 __u64 bos; /* in, ptr to array of submit_bo's */ 205 __u64 relocs; /* in, ptr to array of submit_reloc's */ 206 __u64 stream; /* in, ptr to cmdstream */ 207 __u32 flags; /* in, mask of ETNA_SUBMIT_x */ 208 __s32 fence_fd; /* in/out, fence fd (see ETNA_SUBMIT_FENCE_FD_x) */ 209 __u64 pmrs; /* in, ptr to array of submit_pmr's */ 210 __u32 nr_pmrs; /* in, number of submit_pmr's */ 211 __u32 pad; 212 }; 213 214 /* The normal way to synchronize with the GPU is just to CPU_PREP on 215 * a buffer if you need to access it from the CPU (other cmdstream 216 * submission from same or other contexts, PAGE_FLIP ioctl, etc, all 217 * handle the required synchronization under the hood). This ioctl 218 * mainly just exists as a way to implement the gallium pipe_fence 219 * APIs without requiring a dummy bo to synchronize on. 220 */ 221 #define ETNA_WAIT_NONBLOCK 0x01 222 struct drm_etnaviv_wait_fence { 223 __u32 pipe; /* in */ 224 __u32 fence; /* in */ 225 __u32 flags; /* in, mask of ETNA_WAIT_x */ 226 __u32 pad; 227 struct drm_etnaviv_timespec timeout; /* in */ 228 }; 229 230 #define ETNA_USERPTR_READ 0x01 231 #define ETNA_USERPTR_WRITE 0x02 232 struct drm_etnaviv_gem_userptr { 233 __u64 user_ptr; /* in, page aligned user pointer */ 234 __u64 user_size; /* in, page aligned user size */ 235 __u32 flags; /* in, flags */ 236 __u32 handle; /* out, non-zero handle */ 237 }; 238 239 struct drm_etnaviv_gem_wait { 240 __u32 pipe; /* in */ 241 __u32 handle; /* in, bo to be waited for */ 242 __u32 flags; /* in, mask of ETNA_WAIT_x */ 243 __u32 pad; 244 struct drm_etnaviv_timespec timeout; /* in */ 245 }; 246 247 /* 248 * Performance Monitor (PM): 249 */ 250 251 struct drm_etnaviv_pm_domain { 252 __u32 pipe; /* in */ 253 __u8 iter; /* in/out, select pm domain at index iter */ 254 __u8 id; /* out, id of domain */ 255 __u16 nr_signals; /* out, how many signals does this domain provide */ 256 char name[64]; /* out, name of domain */ 257 }; 258 259 struct drm_etnaviv_pm_signal { 260 __u32 pipe; /* in */ 261 __u8 domain; /* in, pm domain index */ 262 __u8 pad; 263 __u16 iter; /* in/out, select pm source at index iter */ 264 __u16 id; /* out, id of signal */ 265 char name[64]; /* out, name of domain */ 266 }; 267 268 #define DRM_ETNAVIV_GET_PARAM 0x00 269 /* placeholder: 270 #define DRM_ETNAVIV_SET_PARAM 0x01 271 */ 272 #define DRM_ETNAVIV_GEM_NEW 0x02 273 #define DRM_ETNAVIV_GEM_INFO 0x03 274 #define DRM_ETNAVIV_GEM_CPU_PREP 0x04 275 #define DRM_ETNAVIV_GEM_CPU_FINI 0x05 276 #define DRM_ETNAVIV_GEM_SUBMIT 0x06 277 #define DRM_ETNAVIV_WAIT_FENCE 0x07 278 #define DRM_ETNAVIV_GEM_USERPTR 0x08 279 #define DRM_ETNAVIV_GEM_WAIT 0x09 280 #define DRM_ETNAVIV_PM_QUERY_DOM 0x0a 281 #define DRM_ETNAVIV_PM_QUERY_SIG 0x0b 282 #define DRM_ETNAVIV_NUM_IOCTLS 0x0c 283 284 #define DRM_IOCTL_ETNAVIV_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GET_PARAM, struct drm_etnaviv_param) 285 #define DRM_IOCTL_ETNAVIV_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_NEW, struct drm_etnaviv_gem_new) 286 #define DRM_IOCTL_ETNAVIV_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_INFO, struct drm_etnaviv_gem_info) 287 #define DRM_IOCTL_ETNAVIV_GEM_CPU_PREP DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_PREP, struct drm_etnaviv_gem_cpu_prep) 288 #define DRM_IOCTL_ETNAVIV_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_CPU_FINI, struct drm_etnaviv_gem_cpu_fini) 289 #define DRM_IOCTL_ETNAVIV_GEM_SUBMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_SUBMIT, struct drm_etnaviv_gem_submit) 290 #define DRM_IOCTL_ETNAVIV_WAIT_FENCE DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_WAIT_FENCE, struct drm_etnaviv_wait_fence) 291 #define DRM_IOCTL_ETNAVIV_GEM_USERPTR DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_USERPTR, struct drm_etnaviv_gem_userptr) 292 #define DRM_IOCTL_ETNAVIV_GEM_WAIT DRM_IOW(DRM_COMMAND_BASE + DRM_ETNAVIV_GEM_WAIT, struct drm_etnaviv_gem_wait) 293 #define DRM_IOCTL_ETNAVIV_PM_QUERY_DOM DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_DOM, struct drm_etnaviv_pm_domain) 294 #define DRM_IOCTL_ETNAVIV_PM_QUERY_SIG DRM_IOWR(DRM_COMMAND_BASE + DRM_ETNAVIV_PM_QUERY_SIG, struct drm_etnaviv_pm_signal) 295 296 #if defined(__cplusplus) 297 } 298 #endif 299 300 #endif /* __ETNAVIV_DRM_H__ */ 301