src/etnaviv/drm-shim/etnaviv_noop.c

   1 /*
   2  * Copyright (c) 2019 Etnaviv Project
   3  * Copyright (c) 2019 Zodiac Inflight Innovations
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Christian Gmeiner <christian.gmeiner@gmail.com>
  26  */
  27
  28 #include <stdio.h>
  29 #include <sys/ioctl.h>
  30 #include "drm-uapi/etnaviv_drm.h"
  31 #include "drm-shim/drm_shim.h"
  32 #include "util/u_debug.h"
  33
  34 struct etna_shim_gpu
  35 {
  36    const char *name;
  37    const uint64_t *reg_map;
  38 };
  39
  40 static const struct etna_shim_gpu gpus[] = {
  41    {
  42       .name = "GC400",
  43       .reg_map = (const uint64_t[]){
  44          [ETNAVIV_PARAM_GPU_MODEL] = 0x400,
  45          [ETNAVIV_PARAM_GPU_REVISION] = 0x4652,
  46          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xa0e9e004,
  47          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xe1299fff,
  48          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xbe13b219,
  49          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xce110010,
  50          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0x8000001,
  51          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x20102,
  52          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x120000,
  53          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
  54          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x4,
  55          [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
  56          [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x80,
  57          [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x8,
  58          [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x1,
  59          [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x1,
  60          [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x80,
  61          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
  62          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x100,
  63          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
  64          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x8,
  65          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
  66       }
  67    },
  68    {
  69       .name = "GC2000",
  70       .reg_map = (const uint64_t[]){
  71          [ETNAVIV_PARAM_GPU_MODEL] = 0x2000,
  72          [ETNAVIV_PARAM_GPU_REVISION] = 0x5108,
  73          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0296cad,
  74          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799eff,
  75          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0x2efbf2d9,
  76          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0x0,
  77          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0x0,
  78          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x0,
  79          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x0,
  80          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
  81          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x8,
  82          [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
  83          [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
  84          [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
  85          [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
  86          [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
  87          [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x200,
  88          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
  89          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x200,
  90          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0xa8,
  91          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0xb,
  92          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
  93       }
  94    },
  95    {
  96       .name = "GC3000",
  97       .reg_map = (const uint64_t[]){
  98          [ETNAVIV_PARAM_GPU_MODEL] = 0x3000,
  99          [ETNAVIV_PARAM_GPU_REVISION] = 0x5450,
 100          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
 101          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799efb,
 102          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfadb,
 103          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4bbf,
 104          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedffdced,
 105          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x930d2f47,
 106          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x10000133,
 107          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
 108          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x10,
 109          [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
 110          [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
 111          [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
 112          [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
 113          [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
 114          [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x400,
 115          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
 116          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x100,
 117          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
 118          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
 119          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
 120       }
 121    },
 122    {
 123       .name = "GC7000L",
 124       .reg_map = (const uint64_t[]){
 125          [ETNAVIV_PARAM_GPU_MODEL] = 0x7000,
 126          [ETNAVIV_PARAM_GPU_REVISION] = 0x6214,
 127          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
 128          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc1799eff,
 129          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfad9,
 130          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4fbf,
 131          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedfffced,
 132          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0xdb0dafc7,
 133          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0xbb5ac333,
 134          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0xfc8ee200,
 135          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x10,
 136          [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
 137          [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
 138          [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
 139          [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
 140          [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
 141          [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x400,
 142          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
 143          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x200,
 144          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
 145          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
 146          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = 0x00400000,
 147       }
 148    }
 149 };
 150
 151 static const struct etna_shim_gpu *shim_gpu;
 152
 153 static int
 154 etnaviv_ioctl_noop(int fd, unsigned long request, void *arg)
 155 {
 156    return 0;
 157 }
 158
 159 static int
 160 etnaviv_ioctl_gem_new(int fd, unsigned long request, void *arg)
 161 {
 162    struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
 163    struct drm_etnaviv_gem_new *create = arg;
 164    struct shim_bo *bo = calloc(1, sizeof(*bo));
 165
 166    drm_shim_bo_init(bo, create->size);
 167    create->handle = drm_shim_bo_get_handle(shim_fd, bo);
 168    drm_shim_bo_put(bo);
 169
 170    return 0;
 171 }
 172
 173 static int
 174 etnaviv_ioctl_gem_info(int fd, unsigned long request, void *arg)
 175 {
 176    struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
 177    struct drm_etnaviv_gem_info *args = arg;
 178    struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, args->handle);
 179
 180    args->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo);
 181    drm_shim_bo_put(bo);
 182
 183    return 0;
 184 }
 185
 186 static int
 187 etnaviv_ioctl_get_param(int fd, unsigned long request, void *arg)
 188 {
 189    struct drm_etnaviv_param *gp = arg;
 190
 191    if (gp->param > ETNAVIV_PARAM_SOFTPIN_START_ADDR) {
 192       fprintf(stderr, "Unknown DRM_IOCTL_ETNAVIV_GET_PARAM %d\n", gp->param);
 193       return -1;
 194    }
 195
 196    gp->value = shim_gpu->reg_map[gp->param];
 197
 198    return 0;
 199 }
 200
 201 static ioctl_fn_t driver_ioctls[] = {
 202    [DRM_ETNAVIV_GET_PARAM] = etnaviv_ioctl_get_param,
 203    [DRM_ETNAVIV_GEM_NEW] = etnaviv_ioctl_gem_new,
 204    [DRM_ETNAVIV_GEM_INFO] = etnaviv_ioctl_gem_info,
 205    [DRM_ETNAVIV_GEM_CPU_PREP] = etnaviv_ioctl_noop,
 206    [DRM_ETNAVIV_GEM_CPU_FINI] = etnaviv_ioctl_noop,
 207    [DRM_ETNAVIV_GEM_SUBMIT] = etnaviv_ioctl_noop,
 208    [DRM_ETNAVIV_WAIT_FENCE] = etnaviv_ioctl_noop,
 209    [DRM_ETNAVIV_GEM_USERPTR] = etnaviv_ioctl_noop,
 210    [DRM_ETNAVIV_GEM_WAIT] = etnaviv_ioctl_noop,
 211    [DRM_ETNAVIV_PM_QUERY_DOM] = etnaviv_ioctl_noop,
 212    [DRM_ETNAVIV_PM_QUERY_SIG] = etnaviv_ioctl_noop,
 213 };
 214
 215 void
 216 drm_shim_driver_init(void)
 217 {
 218    shim_device.driver_name = "etnaviv";
 219    shim_device.driver_ioctls = driver_ioctls;
 220    shim_device.driver_ioctl_count = ARRAY_SIZE(driver_ioctls);
 221
 222    /* etnaviv uses the DRM version to expose features, instead of getparam. */
 223    shim_device.version_major = 1;
 224    shim_device.version_minor = 1;
 225    shim_device.version_patchlevel = 0;
 226
 227    drm_shim_override_file("DRIVER=etnaviv\n"
 228          "MODALIAS=platform:etnaviv\n",
 229          "/sys/dev/char/%d:%d/device/uevent",
 230          DRM_MAJOR, render_node_minor);
 231
 232    /* decide what GPU to emulate */
 233    const char *gpu = debug_get_option("ETNA_SHIM_GPU", "GC2000");
 234
 235    for (unsigned i = 0; i < ARRAY_SIZE(gpus); i++) {
 236       if (strncasecmp(gpu, gpus[i].name, strlen(gpus[i].name)) == 0) {
 237          shim_gpu = &gpus[i];
 238          break;
 239       }
 240    }
 241
 242    /* NOTE: keep keep default value and fallback index in sync */
 243    if (!shim_gpu)
 244       shim_gpu = &gpus[1];
 245
 246    fprintf(stderr, "Using %s as shim gpu\n", shim_gpu->name);
 247 }