vmw_screen_svga.c revision 2812b60a84a2992516db28b37b305c2a7eb5f424 
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
52static struct svga_winsys_buffer *
53vmw_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
78static void *
79vmw_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, NULL);
85}
86
87
88static void
89vmw_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
97static void
98vmw_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
107static void
108vmw_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
117static int
118vmw_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
128static int
129vmw_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
140static struct svga_winsys_surface *
141vmw_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
166no_sid:
167   FREE(surface);
168no_surface:
169   return NULL;
170}
171
172
173static boolean
174vmw_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
182static void
183vmw_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
195static void
196vmw_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
204static SVGA3dHardwareVersion
205vmw_svga_winsys_get_hw_version(struct svga_winsys_screen *sws)
206{
207   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
208
209   if (!vws->ioctl.fifo_map) {
210      return 0;
211   }
212
213   return vws->ioctl.fifo_map[SVGA_FIFO_3D_HWVERSION];
214}
215
216
217static boolean
218vmw_svga_winsys_get_cap(struct svga_winsys_screen *sws,
219                        SVGA3dDevCapIndex index,
220                        SVGA3dDevCapResult *result)
221{
222   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
223   const uint32 *capsBlock;
224   const SVGA3dCapsRecord *capsRecord = NULL;
225   uint32 offset;
226   const SVGA3dCapPair *capArray;
227   int numCaps, first, last;
228
229   if(!vws->ioctl.fifo_map)
230      return FALSE;
231
232   if(vws->ioctl.fifo_map[SVGA_FIFO_3D_HWVERSION] < SVGA3D_HWVERSION_WS6_B1)
233      return FALSE;
234
235   /*
236    * Search linearly through the caps block records for the specified type.
237    */
238   capsBlock = (const uint32 *)&vws->ioctl.fifo_map[SVGA_FIFO_3D_CAPS];
239   for (offset = 0; capsBlock[offset] != 0; offset += capsBlock[offset]) {
240      const SVGA3dCapsRecord *record;
241      assert(offset < SVGA_FIFO_3D_CAPS_SIZE);
242      record = (const SVGA3dCapsRecord *) (capsBlock + offset);
243      if ((record->header.type >= SVGA3DCAPS_RECORD_DEVCAPS_MIN) &&
244          (record->header.type <= SVGA3DCAPS_RECORD_DEVCAPS_MAX) &&
245          (!capsRecord || (record->header.type > capsRecord->header.type))) {
246         capsRecord = record;
247      }
248   }
249
250   if(!capsRecord)
251      return FALSE;
252
253   /*
254    * Calculate the number of caps from the size of the record.
255    */
256   capArray = (const SVGA3dCapPair *) capsRecord->data;
257   numCaps = (int) ((capsRecord->header.length * sizeof(uint32) -
258                     sizeof capsRecord->header) / (2 * sizeof(uint32)));
259
260   /*
261    * Binary-search for the cap with the specified index.
262    */
263   for (first = 0, last = numCaps - 1; first <= last; ) {
264      int mid = (first + last) / 2;
265
266      if ((SVGA3dDevCapIndex) capArray[mid][0] == index) {
267         /*
268          * Found it.
269          */
270         result->u = capArray[mid][1];
271         return TRUE;
272      }
273
274      /*
275       * Divide and conquer.
276       */
277      if ((SVGA3dDevCapIndex) capArray[mid][0] > index) {
278         last = mid - 1;
279      } else {
280         first = mid + 1;
281      }
282   }
283
284   return FALSE;
285}
286
287
288boolean
289vmw_winsys_screen_init_svga(struct vmw_winsys_screen *vws)
290{
291   vws->base.destroy = vmw_svga_winsys_destroy;
292   vws->base.get_hw_version = vmw_svga_winsys_get_hw_version;
293   vws->base.get_cap = vmw_svga_winsys_get_cap;
294   vws->base.context_create = vmw_svga_winsys_context_create;
295   vws->base.surface_create = vmw_svga_winsys_surface_create;
296   vws->base.surface_is_flushed = vmw_svga_winsys_surface_is_flushed;
297   vws->base.surface_reference = vmw_svga_winsys_surface_ref;
298   vws->base.buffer_create = vmw_svga_winsys_buffer_create;
299   vws->base.buffer_map = vmw_svga_winsys_buffer_map;
300   vws->base.buffer_unmap = vmw_svga_winsys_buffer_unmap;
301   vws->base.buffer_destroy = vmw_svga_winsys_buffer_destroy;
302   vws->base.fence_reference = vmw_svga_winsys_fence_reference;
303   vws->base.fence_signalled = vmw_svga_winsys_fence_signalled;
304   vws->base.fence_finish = vmw_svga_winsys_fence_finish;
305
306   return TRUE;
307}
308
309
310