Merge branch '7.8'
[mesa.git] / src / gallium / winsys / svga / drm / 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