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   if (usage == SVGA_BUFFER_USAGE_PINNED) {
68      if (vws->pools.query_fenced == NULL && !vmw_query_pools_init(vws))
69	 return NULL;
70      provider = vws->pools.query_fenced;
71   } else
72      provider = vws->pools.gmr_fenced;
73
74   assert(provider);
75   buffer = provider->create_buffer(provider, size, &desc);
76
77   if(!buffer && provider == vws->pools.gmr_fenced) {
78
79      assert(provider);
80      provider = vws->pools.gmr_slab_fenced;
81      buffer = provider->create_buffer(provider, size, &desc);
82   }
83
84   if (!buffer)
85      return NULL;
86
87   return vmw_svga_winsys_buffer(buffer);
88}
89
90
91static void *
92vmw_svga_winsys_buffer_map(struct svga_winsys_screen *sws,
93                           struct svga_winsys_buffer *buf,
94                           unsigned flags)
95{
96   (void)sws;
97   return pb_map(vmw_pb_buffer(buf), flags, NULL);
98}
99
100
101static void
102vmw_svga_winsys_buffer_unmap(struct svga_winsys_screen *sws,
103                             struct svga_winsys_buffer *buf)
104{
105   (void)sws;
106   pb_unmap(vmw_pb_buffer(buf));
107}
108
109
110static void
111vmw_svga_winsys_buffer_destroy(struct svga_winsys_screen *sws,
112                               struct svga_winsys_buffer *buf)
113{
114   struct pb_buffer *pbuf = vmw_pb_buffer(buf);
115   (void)sws;
116   pb_reference(&pbuf, NULL);
117}
118
119
120static void
121vmw_svga_winsys_fence_reference(struct svga_winsys_screen *sws,
122                                struct pipe_fence_handle **pdst,
123                                struct pipe_fence_handle *src)
124{
125    struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
126
127    vmw_fence_reference(vws, pdst, src);
128}
129
130
131static int
132vmw_svga_winsys_fence_signalled(struct svga_winsys_screen *sws,
133                                struct pipe_fence_handle *fence,
134                                unsigned flag)
135{
136   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
137
138   return vmw_fence_signalled(vws, fence, flag);
139}
140
141
142static int
143vmw_svga_winsys_fence_finish(struct svga_winsys_screen *sws,
144                             struct pipe_fence_handle *fence,
145                             unsigned flag)
146{
147   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
148
149   return vmw_fence_finish(vws, fence, flag);
150}
151
152
153
154static struct svga_winsys_surface *
155vmw_svga_winsys_surface_create(struct svga_winsys_screen *sws,
156                               SVGA3dSurfaceFlags flags,
157                               SVGA3dSurfaceFormat format,
158                               SVGA3dSize size,
159                               uint32 numFaces,
160                               uint32 numMipLevels)
161{
162   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
163   struct vmw_svga_winsys_surface *surface;
164
165   surface = CALLOC_STRUCT(vmw_svga_winsys_surface);
166   if(!surface)
167      goto no_surface;
168
169   pipe_reference_init(&surface->refcnt, 1);
170   p_atomic_set(&surface->validated, 0);
171   surface->screen = vws;
172   surface->sid = vmw_ioctl_surface_create(vws,
173                                           flags, format, size,
174                                           numFaces, numMipLevels);
175   if(surface->sid == SVGA3D_INVALID_ID)
176      goto no_sid;
177
178   return svga_winsys_surface(surface);
179
180no_sid:
181   FREE(surface);
182no_surface:
183   return NULL;
184}
185
186
187static boolean
188vmw_svga_winsys_surface_is_flushed(struct svga_winsys_screen *sws,
189                                   struct svga_winsys_surface *surface)
190{
191   struct vmw_svga_winsys_surface *vsurf = vmw_svga_winsys_surface(surface);
192   return (p_atomic_read(&vsurf->validated) == 0);
193}
194
195
196static void
197vmw_svga_winsys_surface_ref(struct svga_winsys_screen *sws,
198			    struct svga_winsys_surface **pDst,
199			    struct svga_winsys_surface *src)
200{
201   struct vmw_svga_winsys_surface *d_vsurf = vmw_svga_winsys_surface(*pDst);
202   struct vmw_svga_winsys_surface *s_vsurf = vmw_svga_winsys_surface(src);
203
204   vmw_svga_winsys_surface_reference(&d_vsurf, s_vsurf);
205   *pDst = svga_winsys_surface(d_vsurf);
206}
207
208
209static void
210vmw_svga_winsys_destroy(struct svga_winsys_screen *sws)
211{
212   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
213
214   vmw_winsys_destroy(vws);
215}
216
217
218static SVGA3dHardwareVersion
219vmw_svga_winsys_get_hw_version(struct svga_winsys_screen *sws)
220{
221   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
222
223   return (SVGA3dHardwareVersion) vws->ioctl.hwversion;
224}
225
226
227static boolean
228vmw_svga_winsys_get_cap(struct svga_winsys_screen *sws,
229                        SVGA3dDevCapIndex index,
230                        SVGA3dDevCapResult *result)
231{
232   struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
233   const uint32 *capsBlock;
234   const SVGA3dCapsRecord *capsRecord = NULL;
235   uint32 offset;
236   const SVGA3dCapPair *capArray;
237   int numCaps, first, last;
238
239   if(vws->ioctl.hwversion < SVGA3D_HWVERSION_WS6_B1)
240      return FALSE;
241
242   /*
243    * Search linearly through the caps block records for the specified type.
244    */
245   capsBlock = (const uint32 *)vws->ioctl.buffer;
246   for (offset = 0; capsBlock[offset] != 0; offset += capsBlock[offset]) {
247      const SVGA3dCapsRecord *record;
248      assert(offset < SVGA_FIFO_3D_CAPS_SIZE);
249      record = (const SVGA3dCapsRecord *) (capsBlock + offset);
250      if ((record->header.type >= SVGA3DCAPS_RECORD_DEVCAPS_MIN) &&
251          (record->header.type <= SVGA3DCAPS_RECORD_DEVCAPS_MAX) &&
252          (!capsRecord || (record->header.type > capsRecord->header.type))) {
253         capsRecord = record;
254      }
255   }
256
257   if(!capsRecord)
258      return FALSE;
259
260   /*
261    * Calculate the number of caps from the size of the record.
262    */
263   capArray = (const SVGA3dCapPair *) capsRecord->data;
264   numCaps = (int) ((capsRecord->header.length * sizeof(uint32) -
265                     sizeof capsRecord->header) / (2 * sizeof(uint32)));
266
267   /*
268    * Binary-search for the cap with the specified index.
269    */
270   for (first = 0, last = numCaps - 1; first <= last; ) {
271      int mid = (first + last) / 2;
272
273      if ((SVGA3dDevCapIndex) capArray[mid][0] == index) {
274         /*
275          * Found it.
276          */
277         result->u = capArray[mid][1];
278         return TRUE;
279      }
280
281      /*
282       * Divide and conquer.
283       */
284      if ((SVGA3dDevCapIndex) capArray[mid][0] > index) {
285         last = mid - 1;
286      } else {
287         first = mid + 1;
288      }
289   }
290
291   return FALSE;
292}
293
294
295boolean
296vmw_winsys_screen_init_svga(struct vmw_winsys_screen *vws)
297{
298   vws->base.destroy = vmw_svga_winsys_destroy;
299   vws->base.get_hw_version = vmw_svga_winsys_get_hw_version;
300   vws->base.get_cap = vmw_svga_winsys_get_cap;
301   vws->base.context_create = vmw_svga_winsys_context_create;
302   vws->base.surface_create = vmw_svga_winsys_surface_create;
303   vws->base.surface_is_flushed = vmw_svga_winsys_surface_is_flushed;
304   vws->base.surface_reference = vmw_svga_winsys_surface_ref;
305   vws->base.buffer_create = vmw_svga_winsys_buffer_create;
306   vws->base.buffer_map = vmw_svga_winsys_buffer_map;
307   vws->base.buffer_unmap = vmw_svga_winsys_buffer_unmap;
308   vws->base.buffer_destroy = vmw_svga_winsys_buffer_destroy;
309   vws->base.fence_reference = vmw_svga_winsys_fence_reference;
310   vws->base.fence_signalled = vmw_svga_winsys_fence_signalled;
311   vws->base.fence_finish = vmw_svga_winsys_fence_finish;
312
313   return TRUE;
314}
315
316
317