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 = "GC2000",
  43       .reg_map = (const uint64_t[]){
  44          [ETNAVIV_PARAM_GPU_MODEL] = 0x2000,
  45          [ETNAVIV_PARAM_GPU_REVISION] = 0x5108,
  46          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0296cad,
  47          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799eff,
  48          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0x2efbf2d9,
  49          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0x0,
  50          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0x0,
  51          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x0,
  52          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x0,
  53          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
  54          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x8,
  55          [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
  56          [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
  57          [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
  58          [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
  59          [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
  60          [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x200,
  61          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
  62          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x200,
  63          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0xa8,
  64          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0xb,
  65          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
  66       }
  67    },
  68    {
  69       .name = "GC3000",
  70       .reg_map = (const uint64_t[]){
  71          [ETNAVIV_PARAM_GPU_MODEL] = 0x3000,
  72          [ETNAVIV_PARAM_GPU_REVISION] = 0x5450,
  73          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
  74          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799efb,
  75          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfadb,
  76          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4bbf,
  77          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedffdced,
  78          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x930d2f47,
  79          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x10000133,
  80          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
  81          [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x10,
  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] = 0x400,
  88          [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
  89          [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x100,
  90          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
  91          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
  92          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
  93       }
  94    },
  95    {
  96       .name = "GC7000L",
  97       .reg_map = (const uint64_t[]){
  98          [ETNAVIV_PARAM_GPU_MODEL] = 0x7000,
  99          [ETNAVIV_PARAM_GPU_REVISION] = 0x6214,
 100          [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
 101          [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc1799eff,
 102          [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfad9,
 103          [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4fbf,
 104          [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedfffced,
 105          [ETNAVIV_PARAM_GPU_FEATURES_5] = 0xdb0dafc7,
 106          [ETNAVIV_PARAM_GPU_FEATURES_6] = 0xbb5ac333,
 107          [ETNAVIV_PARAM_GPU_FEATURES_7] = 0xfc8ee200,
 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] = 0x200,
 117          [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
 118          [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
 119          [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = 0x00400000,
 120       }
 121    }
 122 };
 123
 124 static const struct etna_shim_gpu *shim_gpu;
 125
 126 static int
 127 etnaviv_ioctl_noop(int fd, unsigned long request, void *arg)
 128 {
 129    return 0;
 130 }
 131
 132 static int
 133 etnaviv_ioctl_gem_new(int fd, unsigned long request, void *arg)
 134 {
 135    struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
 136    struct drm_etnaviv_gem_new *create = arg;
 137    struct shim_bo *bo = calloc(1, sizeof(*bo));
 138
 139    drm_shim_bo_init(bo, create->size);
 140    create->handle = drm_shim_bo_get_handle(shim_fd, bo);
 141    drm_shim_bo_put(bo);
 142
 143    return 0;
 144 }
 145
 146 static int
 147 etnaviv_ioctl_gem_info(int fd, unsigned long request, void *arg)
 148 {
 149    struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
 150    struct drm_etnaviv_gem_info *args = arg;
 151    struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, args->handle);
 152
 153    args->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo);
 154    drm_shim_bo_put(bo);
 155
 156    return 0;
 157 }
 158
 159 static int
 160 etnaviv_ioctl_get_param(int fd, unsigned long request, void *arg)
 161 {
 162    struct drm_etnaviv_param *gp = arg;
 163
 164    if (gp->param > ETNAVIV_PARAM_SOFTPIN_START_ADDR) {
 165       fprintf(stderr, "Unknown DRM_IOCTL_ETNAVIV_GET_PARAM %d\n", gp->param);
 166       return -1;
 167    }
 168
 169    gp->value = shim_gpu->reg_map[gp->param];
 170
 171    return 0;
 172 }
 173
 174 static ioctl_fn_t driver_ioctls[] = {
 175    [DRM_ETNAVIV_GET_PARAM] = etnaviv_ioctl_get_param,
 176    [DRM_ETNAVIV_GEM_NEW] = etnaviv_ioctl_gem_new,
 177    [DRM_ETNAVIV_GEM_INFO] = etnaviv_ioctl_gem_info,
 178    [DRM_ETNAVIV_GEM_CPU_PREP] = etnaviv_ioctl_noop,
 179    [DRM_ETNAVIV_GEM_CPU_FINI] = etnaviv_ioctl_noop,
 180    [DRM_ETNAVIV_GEM_SUBMIT] = etnaviv_ioctl_noop,
 181    [DRM_ETNAVIV_WAIT_FENCE] = etnaviv_ioctl_noop,
 182    [DRM_ETNAVIV_GEM_USERPTR] = etnaviv_ioctl_noop,
 183    [DRM_ETNAVIV_GEM_WAIT] = etnaviv_ioctl_noop,
 184    [DRM_ETNAVIV_PM_QUERY_DOM] = etnaviv_ioctl_noop,
 185    [DRM_ETNAVIV_PM_QUERY_SIG] = etnaviv_ioctl_noop,
 186 };
 187
 188 void
 189 drm_shim_driver_init(void)
 190 {
 191    shim_device.driver_name = "etnaviv";
 192    shim_device.driver_ioctls = driver_ioctls;
 193    shim_device.driver_ioctl_count = ARRAY_SIZE(driver_ioctls);
 194
 195    /* etnaviv uses the DRM version to expose features, instead of getparam. */
 196    shim_device.version_major = 1;
 197    shim_device.version_minor = 1;
 198    shim_device.version_patchlevel = 0;
 199
 200    drm_shim_override_file("DRIVER=etnaviv\n"
 201          "MODALIAS=platform:etnaviv\n",
 202          "/sys/dev/char/%d:%d/device/uevent",
 203          DRM_MAJOR, render_node_minor);
 204
 205    /* decide what GPU to emulate */
 206    const char *gpu = debug_get_option("ETNA_SHIM_GPU", "GC2000");
 207
 208    for (unsigned i = 0; i < ARRAY_SIZE(gpus); i++) {
 209       if (strncasecmp(gpu, gpus[i].name, strlen(gpus[i].name)) == 0) {
 210          shim_gpu = &gpus[i];
 211          break;
 212       }
 213    }
 214
 215    /* NOTE: keep keep default value and fallback index in sync */
 216    if (!shim_gpu)
 217       shim_gpu = &gpus[0];
 218
 219    fprintf(stderr, "Using %s as shim gpu\n", shim_gpu->name);
 220 }