src/gallium/winsys/drm/vmware/core/vmw_screen_svga.c

   1 /**********************************************************
   2  * Copyright 2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 /**
  27  * @file
  28  * This file implements the SVGA interface into this winsys, defined
  29  * in drivers/svga/svga_winsys.h.
  30  *
  31  * @author Keith Whitwell
  32  * @author Jose Fonseca
  33  */
  34
  35
  36 #include "svga_cmd.h"
  37 #include "svga3d_caps.h"
  38
  39 #include "util/u_inlines.h"
  40 #include "util/u_math.h"
  41 #include "util/u_memory.h"
  42 #include "pipebuffer/pb_buffer.h"
  43 #include "pipebuffer/pb_bufmgr.h"
  44 #include "svga_winsys.h"
  45 #include "vmw_context.h"
  46 #include "vmw_screen.h"
  47 #include "vmw_surface.h"
  48 #include "vmw_buffer.h"
  49 #include "vmw_fence.h"
  50
  51
  52 static struct svga_winsys_buffer *
  53 vmw_svga_winsys_buffer_create(struct svga_winsys_screen *sws,
  54                               unsigned alignment,
  55                               unsigned usage,
  56                               unsigned size)
  57 {
  58    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
  59    struct pb_desc desc;
  60    struct pb_manager *provider;
  61    struct pb_buffer *buffer;
  62
  63    memset(&desc, 0, sizeof desc);
  64    desc.alignment = alignment;
  65    desc.usage = usage;
  66
  67    provider = vws->pools.gmr_fenced;
  68
  69    assert(provider);
  70    buffer = provider->create_buffer(provider, size, &desc);
  71    if(!buffer)
  72       return NULL;
  73
  74    return vmw_svga_winsys_buffer(buffer);
  75 }
  76
  77
  78 static void *
  79 vmw_svga_winsys_buffer_map(struct svga_winsys_screen *sws,
  80                            struct svga_winsys_buffer *buf,
  81                            unsigned flags)
  82 {
  83    (void)sws;
  84    return pb_map(vmw_pb_buffer(buf), flags);
  85 }
  86
  87
  88 static void
  89 vmw_svga_winsys_buffer_unmap(struct svga_winsys_screen *sws,
  90                              struct svga_winsys_buffer *buf)
  91 {
  92    (void)sws;
  93    pb_unmap(vmw_pb_buffer(buf));
  94 }
  95
  96
  97 static void
  98 vmw_svga_winsys_buffer_destroy(struct svga_winsys_screen *sws,
  99                                struct svga_winsys_buffer *buf)
 100 {
 101    struct pb_buffer *pbuf = vmw_pb_buffer(buf);
 102    (void)sws;
 103    pb_reference(&pbuf, NULL);
 104 }
 105
 106
 107 static void
 108 vmw_svga_winsys_fence_reference(struct svga_winsys_screen *sws,
 109                                 struct pipe_fence_handle **pdst,
 110                                 struct pipe_fence_handle *src)
 111 {
 112    (void)sws;
 113    *pdst = src;
 114 }
 115
 116
 117 static int
 118 vmw_svga_winsys_fence_signalled(struct svga_winsys_screen *sws,
 119                                 struct pipe_fence_handle *fence,
 120                                 unsigned flag)
 121 {
 122    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
 123    (void)flag;
 124    return vmw_ioctl_fence_signalled(vws, vmw_fence(fence));
 125 }
 126
 127
 128 static int
 129 vmw_svga_winsys_fence_finish(struct svga_winsys_screen *sws,
 130                              struct pipe_fence_handle *fence,
 131                              unsigned flag)
 132 {
 133    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
 134    (void)flag;
 135    return vmw_ioctl_fence_finish(vws, vmw_fence(fence));
 136 }
 137
 138
 139
 140 static struct svga_winsys_surface *
 141 vmw_svga_winsys_surface_create(struct svga_winsys_screen *sws,
 142                                SVGA3dSurfaceFlags flags,
 143                                SVGA3dSurfaceFormat format,
 144                                SVGA3dSize size,
 145                                uint32 numFaces,
 146                                uint32 numMipLevels)
 147 {
 148    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
 149    struct vmw_svga_winsys_surface *surface;
 150
 151    surface = CALLOC_STRUCT(vmw_svga_winsys_surface);
 152    if(!surface)
 153       goto no_surface;
 154
 155    pipe_reference_init(&surface->refcnt, 1);
 156    p_atomic_set(&surface->validated, 0);
 157    surface->screen = vws;
 158    surface->sid = vmw_ioctl_surface_create(vws,
 159                                            flags, format, size,
 160                                            numFaces, numMipLevels);
 161    if(surface->sid == SVGA3D_INVALID_ID)
 162       goto no_sid;
 163
 164    return svga_winsys_surface(surface);
 165
 166 no_sid:
 167    FREE(surface);
 168 no_surface:
 169    return NULL;
 170 }
 171
 172
 173 static boolean
 174 vmw_svga_winsys_surface_is_flushed(struct svga_winsys_screen *sws,
 175                                    struct svga_winsys_surface *surface)
 176 {
 177    struct vmw_svga_winsys_surface *vsurf = vmw_svga_winsys_surface(surface);
 178    return (p_atomic_read(&vsurf->validated) == 0);
 179 }
 180
 181
 182 static void
 183 vmw_svga_winsys_surface_ref(struct svga_winsys_screen *sws,
 184                             struct svga_winsys_surface **pDst,
 185                             struct svga_winsys_surface *src)
 186 {
 187    struct vmw_svga_winsys_surface *d_vsurf = vmw_svga_winsys_surface(*pDst);
 188    struct vmw_svga_winsys_surface *s_vsurf = vmw_svga_winsys_surface(src);
 189
 190    vmw_svga_winsys_surface_reference(&d_vsurf, s_vsurf);
 191    *pDst = svga_winsys_surface(d_vsurf);
 192 }
 193
 194
 195 static void
 196 vmw_svga_winsys_destroy(struct svga_winsys_screen *sws)
 197 {
 198    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
 199
 200    vmw_winsys_destroy(vws);
 201 }
 202
 203
 204 static boolean
 205 vmw_svga_winsys_get_cap(struct svga_winsys_screen *sws,
 206                         SVGA3dDevCapIndex index,
 207                         SVGA3dDevCapResult *result)
 208 {
 209    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
 210    const uint32 *capsBlock;
 211    const SVGA3dCapsRecord *capsRecord = NULL;
 212    uint32 offset;
 213    const SVGA3dCapPair *capArray;
 214    int numCaps, first, last;
 215
 216    if(!vws->ioctl.fifo_map)
 217       return FALSE;
 218
 219    if(vws->ioctl.fifo_map[SVGA_FIFO_3D_HWVERSION] < SVGA3D_HWVERSION_WS6_B1)
 220       return FALSE;
 221
 222    /*
 223     * Search linearly through the caps block records for the specified type.
 224     */
 225    capsBlock = (const uint32 *)&vws->ioctl.fifo_map[SVGA_FIFO_3D_CAPS];
 226    for (offset = 0; capsBlock[offset] != 0; offset += capsBlock[offset]) {
 227       const SVGA3dCapsRecord *record;
 228       assert(offset < SVGA_FIFO_3D_CAPS_SIZE);
 229       record = (const SVGA3dCapsRecord *) (capsBlock + offset);
 230       if ((record->header.type >= SVGA3DCAPS_RECORD_DEVCAPS_MIN) &&
 231           (record->header.type <= SVGA3DCAPS_RECORD_DEVCAPS_MAX) &&
 232           (!capsRecord || (record->header.type > capsRecord->header.type))) {
 233          capsRecord = record;
 234       }
 235    }
 236
 237    if(!capsRecord)
 238       return FALSE;
 239
 240    /*
 241     * Calculate the number of caps from the size of the record.
 242     */
 243    capArray = (const SVGA3dCapPair *) capsRecord->data;
 244    numCaps = (int) ((capsRecord->header.length * sizeof(uint32) -
 245                      sizeof capsRecord->header) / (2 * sizeof(uint32)));
 246
 247    /*
 248     * Binary-search for the cap with the specified index.
 249     */
 250    for (first = 0, last = numCaps - 1; first <= last; ) {
 251       int mid = (first + last) / 2;
 252
 253       if ((SVGA3dDevCapIndex) capArray[mid][0] == index) {
 254          /*
 255           * Found it.
 256           */
 257          result->u = capArray[mid][1];
 258          return TRUE;
 259       }
 260
 261       /*
 262        * Divide and conquer.
 263        */
 264       if ((SVGA3dDevCapIndex) capArray[mid][0] > index) {
 265          last = mid - 1;
 266       } else {
 267          first = mid + 1;
 268       }
 269    }
 270
 271    return FALSE;
 272 }
 273
 274
 275 boolean
 276 vmw_winsys_screen_init_svga(struct vmw_winsys_screen *vws)
 277 {
 278    vws->base.destroy = vmw_svga_winsys_destroy;
 279    vws->base.get_cap = vmw_svga_winsys_get_cap;
 280    vws->base.context_create = vmw_svga_winsys_context_create;
 281    vws->base.surface_create = vmw_svga_winsys_surface_create;
 282    vws->base.surface_is_flushed = vmw_svga_winsys_surface_is_flushed;
 283    vws->base.surface_reference = vmw_svga_winsys_surface_ref;
 284    vws->base.buffer_create = vmw_svga_winsys_buffer_create;
 285    vws->base.buffer_map = vmw_svga_winsys_buffer_map;
 286    vws->base.buffer_unmap = vmw_svga_winsys_buffer_unmap;
 287    vws->base.buffer_destroy = vmw_svga_winsys_buffer_destroy;
 288    vws->base.fence_reference = vmw_svga_winsys_fence_reference;
 289    vws->base.fence_signalled = vmw_svga_winsys_fence_signalled;
 290    vws->base.fence_finish = vmw_svga_winsys_fence_finish;
 291
 292    return TRUE;
 293 }
 294
 295