src/gallium/drivers/nouveau/nouveau_screen.c

   1 #include "pipe/p_defines.h"
   2 #include "pipe/p_screen.h"
   3 #include "pipe/p_state.h"
   4
   5 #include "util/u_memory.h"
   6 #include "util/u_inlines.h"
   7 #include "util/u_format.h"
   8
   9 #include <stdio.h>
  10 #include <errno.h>
  11
  12 #include "nouveau/nouveau_bo.h"
  13 #include "nouveau_winsys.h"
  14 #include "nouveau_screen.h"
  15
  16 /* XXX this should go away */
  17 #include "state_tracker/drm_api.h"
  18 #include "util/u_simple_screen.h"
  19
  20 static const char *
  21 nouveau_screen_get_name(struct pipe_screen *pscreen)
  22 {
  23         struct nouveau_device *dev = nouveau_screen(pscreen)->device;
  24         static char buffer[128];
  25
  26         snprintf(buffer, sizeof(buffer), "NV%02X", dev->chipset);
  27         return buffer;
  28 }
  29
  30 static const char *
  31 nouveau_screen_get_vendor(struct pipe_screen *pscreen)
  32 {
  33         return "nouveau";
  34 }
  35
  36
  37
  38 struct nouveau_bo *
  39 nouveau_screen_bo_new(struct pipe_screen *pscreen, unsigned alignment,
  40                       unsigned usage, unsigned bind, unsigned size)
  41 {
  42         struct nouveau_device *dev = nouveau_screen(pscreen)->device;
  43         struct nouveau_bo *bo = NULL;
  44         uint32_t flags = NOUVEAU_BO_MAP, tile_mode = 0, tile_flags = 0;
  45         int ret;
  46
  47         if (bind & PIPE_BIND_VERTEX_BUFFER)
  48                 flags |= nouveau_screen(pscreen)->vertex_buffer_flags;
  49         else if (bind & PIPE_BIND_INDEX_BUFFER)
  50                 flags |= nouveau_screen(pscreen)->index_buffer_flags;
  51
  52         if (bind & (PIPE_BIND_RENDER_TARGET |
  53                         PIPE_BIND_DEPTH_STENCIL |
  54                         PIPE_BIND_BLIT_SOURCE |
  55                         PIPE_BIND_BLIT_DESTINATION |
  56                         PIPE_BIND_SCANOUT |
  57                         PIPE_BIND_DISPLAY_TARGET |
  58                         PIPE_BIND_SAMPLER_VIEW))
  59         {
  60                 /* TODO: this may be incorrect or suboptimal */
  61                 if (!(bind & PIPE_BIND_SCANOUT))
  62                         flags |= NOUVEAU_BO_GART;
  63                 if (usage != PIPE_USAGE_DYNAMIC)
  64                         flags |= NOUVEAU_BO_VRAM;
  65
  66                 if (dev->chipset == 0x50 || dev->chipset >= 0x80) {
  67                         if (bind & PIPE_BIND_DEPTH_STENCIL)
  68                                 tile_flags = 0x2800;
  69                         else
  70                                 tile_flags = 0x7000;
  71                 }
  72         }
  73
  74         ret = nouveau_bo_new_tile(dev, flags, alignment, size,
  75                                   tile_mode, tile_flags, &bo);
  76         if (ret)
  77                 return NULL;
  78
  79         return bo;
  80 }
  81
  82 struct nouveau_bo *
  83 nouveau_screen_bo_user(struct pipe_screen *pscreen, void *ptr, unsigned bytes)
  84 {
  85         struct nouveau_device *dev = nouveau_screen(pscreen)->device;
  86         struct nouveau_bo *bo = NULL;
  87         int ret;
  88
  89         ret = nouveau_bo_user(dev, ptr, bytes, &bo);
  90         if (ret)
  91                 return NULL;
  92
  93         return bo;
  94 }
  95
  96 void *
  97 nouveau_screen_bo_map(struct pipe_screen *pscreen,
  98                       struct nouveau_bo *bo,
  99                       unsigned map_flags)
 100 {
 101         int ret;
 102
 103         ret = nouveau_bo_map(bo, map_flags);
 104         if (ret) {
 105                 debug_printf("map failed: %d\n", ret);
 106                 return NULL;
 107         }
 108
 109         return bo->map;
 110 }
 111
 112 void *
 113 nouveau_screen_bo_map_range(struct pipe_screen *pscreen, struct nouveau_bo *bo,
 114                             unsigned offset, unsigned length, unsigned flags)
 115 {
 116         int ret;
 117
 118         ret = nouveau_bo_map_range(bo, offset, length, flags);
 119         if (ret) {
 120                 nouveau_bo_unmap(bo);
 121                 if (!(flags & NOUVEAU_BO_NOWAIT) || ret != -EBUSY)
 122                         debug_printf("map_range failed: %d\n", ret);
 123                 return NULL;
 124         }
 125
 126         return (char *)bo->map - offset; /* why gallium? why? */
 127 }
 128
 129 void
 130 nouveau_screen_bo_map_flush_range(struct pipe_screen *pscreen, struct nouveau_bo *bo,
 131                                   unsigned offset, unsigned length)
 132 {
 133         nouveau_bo_map_flush(bo, offset, length);
 134 }
 135
 136 void
 137 nouveau_screen_bo_unmap(struct pipe_screen *pscreen, struct nouveau_bo *bo)
 138 {
 139         nouveau_bo_unmap(bo);
 140 }
 141
 142 void
 143 nouveau_screen_bo_release(struct pipe_screen *pscreen, struct nouveau_bo *bo)
 144 {
 145         nouveau_bo_ref(NULL, &bo);
 146 }
 147
 148 static void
 149 nouveau_screen_fence_ref(struct pipe_screen *pscreen,
 150                          struct pipe_fence_handle **ptr,
 151                          struct pipe_fence_handle *pfence)
 152 {
 153         *ptr = pfence;
 154 }
 155
 156 static int
 157 nouveau_screen_fence_signalled(struct pipe_screen *screen,
 158                                struct pipe_fence_handle *pfence,
 159                                unsigned flags)
 160 {
 161         return 0;
 162 }
 163
 164 static int
 165 nouveau_screen_fence_finish(struct pipe_screen *screen,
 166                             struct pipe_fence_handle *pfence,
 167                             unsigned flags)
 168 {
 169         return 0;
 170 }
 171
 172
 173 struct nouveau_bo *
 174 nouveau_screen_bo_from_handle(struct pipe_screen *pscreen,
 175                               struct winsys_handle *whandle,
 176                               unsigned *out_stride)
 177 {
 178         struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 179         struct nouveau_bo *bo = 0;
 180         int ret;
 181
 182         ret = nouveau_bo_handle_ref(dev, whandle->handle, &bo);
 183         if (ret) {
 184                 debug_printf("%s: ref name 0x%08x failed with %d\n",
 185                              __func__, whandle->handle, ret);
 186                 return NULL;
 187         }
 188
 189         *out_stride = whandle->stride;
 190         return bo;
 191 }
 192
 193
 194 boolean
 195 nouveau_screen_bo_get_handle(struct pipe_screen *pscreen,
 196                              struct nouveau_bo *bo,
 197                              unsigned stride,
 198                              struct winsys_handle *whandle)
 199 {
 200         whandle->stride = stride;
 201
 202         if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
 203                 return nouveau_bo_handle_get(bo, &whandle->handle) == 0;
 204         } else if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
 205                 whandle->handle = bo->handle;
 206                 return TRUE;
 207         } else {
 208                 return FALSE;
 209         }
 210 }
 211
 212
 213 unsigned int
 214 nouveau_reference_flags(struct nouveau_bo *bo)
 215 {
 216         uint32_t bo_flags;
 217         int flags = 0;
 218
 219         bo_flags = nouveau_bo_pending(bo);
 220         if (bo_flags & NOUVEAU_BO_RD)
 221                 flags |= PIPE_REFERENCED_FOR_READ;
 222         if (bo_flags & NOUVEAU_BO_WR)
 223                 flags |= PIPE_REFERENCED_FOR_WRITE;
 224
 225         return flags;
 226 }
 227
 228
 229
 230
 231
 232 int
 233 nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
 234 {
 235         struct pipe_screen *pscreen = &screen->base;
 236         int ret;
 237
 238         ret = nouveau_channel_alloc(dev, 0xbeef0201, 0xbeef0202,
 239                                     &screen->channel);
 240         if (ret)
 241                 return ret;
 242         screen->device = dev;
 243
 244         pscreen->get_name = nouveau_screen_get_name;
 245         pscreen->get_vendor = nouveau_screen_get_vendor;
 246
 247         pscreen->fence_reference = nouveau_screen_fence_ref;
 248         pscreen->fence_signalled = nouveau_screen_fence_signalled;
 249         pscreen->fence_finish = nouveau_screen_fence_finish;
 250
 251         return 0;
 252 }
 253
 254 void
 255 nouveau_screen_fini(struct nouveau_screen *screen)
 256 {
 257         struct pipe_winsys *ws = screen->base.winsys;
 258         nouveau_channel_free(&screen->channel);
 259         ws->destroy(ws);
 260 }
 261