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 *
29 * Wrappers for DRM ioctl functionlaity used by the rest of the vmw
30 * drm winsys.
31 *
32 * Based on svgaicd_escape.c
33 */
34
35
36 #include "svga_cmd.h"
37 #include "util/u_memory.h"
38 #include "util/u_math.h"
39 #include "svgadump/svga_dump.h"
40 #include "vmw_screen.h"
41 #include "vmw_context.h"
42 #include "vmw_fence.h"
43 #include "xf86drm.h"
44 #include "vmwgfx_drm.h"
45 #include "svga3d_caps.h"
46
47 #include "os/os_mman.h"
48
49 #include <errno.h>
50 #include <unistd.h>
51
52 struct vmw_region
53 {
54 SVGAGuestPtr ptr;
55 uint32_t handle;
56 uint64_t map_handle;
57 void *data;
58 uint32_t map_count;
59 int drm_fd;
60 uint32_t size;
61 };
62
63 /* XXX: This isn't a real hardware flag, but just a hack for kernel to
64 * know about primary surfaces. In newer versions of the kernel
65 * interface the driver uses a special field.
66 */
67 #define SVGA3D_SURFACE_HINT_SCANOUT (1 << 9)
68
69 uint32
vmw_ioctl_context_create(struct vmw_winsys_screen * vws)70 vmw_ioctl_context_create(struct vmw_winsys_screen *vws)
71 {
72 struct drm_vmw_context_arg c_arg;
73 int ret;
74
75 VMW_FUNC;
76
77 ret = drmCommandRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_CONTEXT,
78 &c_arg, sizeof(c_arg));
79
80 if (ret)
81 return -1;
82
83 vmw_printf("Context id is %d\n", c_arg.cid);
84
85 return c_arg.cid;
86 }
87
88 void
vmw_ioctl_context_destroy(struct vmw_winsys_screen * vws,uint32 cid)89 vmw_ioctl_context_destroy(struct vmw_winsys_screen *vws, uint32 cid)
90 {
91 struct drm_vmw_context_arg c_arg;
92
93 VMW_FUNC;
94
95 memset(&c_arg, 0, sizeof(c_arg));
96 c_arg.cid = cid;
97
98 (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_CONTEXT,
99 &c_arg, sizeof(c_arg));
100
101 }
102
103 uint32
vmw_ioctl_surface_create(struct vmw_winsys_screen * vws,SVGA3dSurfaceFlags flags,SVGA3dSurfaceFormat format,SVGA3dSize size,uint32_t numFaces,uint32_t numMipLevels)104 vmw_ioctl_surface_create(struct vmw_winsys_screen *vws,
105 SVGA3dSurfaceFlags flags,
106 SVGA3dSurfaceFormat format,
107 SVGA3dSize size,
108 uint32_t numFaces, uint32_t numMipLevels)
109 {
110 union drm_vmw_surface_create_arg s_arg;
111 struct drm_vmw_surface_create_req *req = &s_arg.req;
112 struct drm_vmw_surface_arg *rep = &s_arg.rep;
113 struct drm_vmw_size sizes[DRM_VMW_MAX_SURFACE_FACES*
114 DRM_VMW_MAX_MIP_LEVELS];
115 struct drm_vmw_size *cur_size;
116 uint32_t iFace;
117 uint32_t iMipLevel;
118 int ret;
119
120 vmw_printf("%s flags %d format %d\n", __FUNCTION__, flags, format);
121
122 memset(&s_arg, 0, sizeof(s_arg));
123 if (vws->use_old_scanout_flag &&
124 (flags & SVGA3D_SURFACE_HINT_SCANOUT)) {
125 req->flags = (uint32_t) flags;
126 req->scanout = false;
127 } else if (flags & SVGA3D_SURFACE_HINT_SCANOUT) {
128 req->flags = (uint32_t) (flags & ~SVGA3D_SURFACE_HINT_SCANOUT);
129 req->scanout = true;
130 } else {
131 req->flags = (uint32_t) flags;
132 req->scanout = false;
133 }
134 req->format = (uint32_t) format;
135 req->shareable = 1;
136
137 assert(numFaces * numMipLevels < DRM_VMW_MAX_SURFACE_FACES*
138 DRM_VMW_MAX_MIP_LEVELS);
139 cur_size = sizes;
140 for (iFace = 0; iFace < numFaces; ++iFace) {
141 SVGA3dSize mipSize = size;
142
143 req->mip_levels[iFace] = numMipLevels;
144 for (iMipLevel = 0; iMipLevel < numMipLevels; ++iMipLevel) {
145 cur_size->width = mipSize.width;
146 cur_size->height = mipSize.height;
147 cur_size->depth = mipSize.depth;
148 mipSize.width = MAX2(mipSize.width >> 1, 1);
149 mipSize.height = MAX2(mipSize.height >> 1, 1);
150 mipSize.depth = MAX2(mipSize.depth >> 1, 1);
151 cur_size++;
152 }
153 }
154 for (iFace = numFaces; iFace < SVGA3D_MAX_SURFACE_FACES; ++iFace) {
155 req->mip_levels[iFace] = 0;
156 }
157
158 req->size_addr = (unsigned long)&sizes;
159
160 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_CREATE_SURFACE,
161 &s_arg, sizeof(s_arg));
162
163 if (ret)
164 return -1;
165
166 vmw_printf("Surface id is %d\n", rep->sid);
167
168 return rep->sid;
169 }
170
171 void
vmw_ioctl_surface_destroy(struct vmw_winsys_screen * vws,uint32 sid)172 vmw_ioctl_surface_destroy(struct vmw_winsys_screen *vws, uint32 sid)
173 {
174 struct drm_vmw_surface_arg s_arg;
175
176 VMW_FUNC;
177
178 memset(&s_arg, 0, sizeof(s_arg));
179 s_arg.sid = sid;
180
181 (void)drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_UNREF_SURFACE,
182 &s_arg, sizeof(s_arg));
183 }
184
185 void
vmw_ioctl_command(struct vmw_winsys_screen * vws,int32_t cid,uint32_t throttle_us,void * commands,uint32_t size,struct pipe_fence_handle ** pfence)186 vmw_ioctl_command(struct vmw_winsys_screen *vws, int32_t cid,
187 uint32_t throttle_us, void *commands, uint32_t size,
188 struct pipe_fence_handle **pfence)
189 {
190 struct drm_vmw_execbuf_arg arg;
191 struct drm_vmw_fence_rep rep;
192 int ret;
193
194 #ifdef DEBUG
195 {
196 static boolean firsttime = TRUE;
197 static boolean debug = FALSE;
198 static boolean skip = FALSE;
199 if (firsttime) {
200 debug = debug_get_bool_option("SVGA_DUMP_CMD", FALSE);
201 skip = debug_get_bool_option("SVGA_SKIP_CMD", FALSE);
202 }
203 if (debug) {
204 VMW_FUNC;
205 svga_dump_commands(commands, size);
206 }
207 firsttime = FALSE;
208 if (skip) {
209 size = 0;
210 }
211 }
212 #endif
213
214 memset(&arg, 0, sizeof(arg));
215 memset(&rep, 0, sizeof(rep));
216
217 rep.error = -EFAULT;
218 if (pfence)
219 arg.fence_rep = (unsigned long)&rep;
220 arg.commands = (unsigned long)commands;
221 arg.command_size = size;
222 arg.throttle_us = throttle_us;
223 arg.version = DRM_VMW_EXECBUF_VERSION;
224
225 do {
226 ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg));
227 } while(ret == -ERESTART);
228 if (ret) {
229 debug_printf("%s error %s.\n", __FUNCTION__, strerror(-ret));
230 }
231
232 if (rep.error) {
233
234 /*
235 * Kernel has already synced, or caller requested no fence.
236 */
237 if (pfence)
238 *pfence = NULL;
239 } else {
240 if (pfence) {
241 *pfence = vmw_fence_create(rep.handle, rep.mask);
242
243 if (*pfence == NULL) {
244 /*
245 * Fence creation failed. Need to sync.
246 */
247 (void) vmw_ioctl_fence_finish(vws, rep.handle, rep.mask);
248 vmw_ioctl_fence_unref(vws, rep.handle);
249 }
250 }
251 }
252 }
253
254
255 struct vmw_region *
vmw_ioctl_region_create(struct vmw_winsys_screen * vws,uint32_t size)256 vmw_ioctl_region_create(struct vmw_winsys_screen *vws, uint32_t size)
257 {
258 struct vmw_region *region;
259 union drm_vmw_alloc_dmabuf_arg arg;
260 struct drm_vmw_alloc_dmabuf_req *req = &arg.req;
261 struct drm_vmw_dmabuf_rep *rep = &arg.rep;
262 int ret;
263
264 vmw_printf("%s: size = %u\n", __FUNCTION__, size);
265
266 region = CALLOC_STRUCT(vmw_region);
267 if (!region)
268 goto out_err1;
269
270 memset(&arg, 0, sizeof(arg));
271 req->size = size;
272 do {
273 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_ALLOC_DMABUF, &arg,
274 sizeof(arg));
275 } while (ret == -ERESTART);
276
277 if (ret) {
278 debug_printf("IOCTL failed %d: %s\n", ret, strerror(-ret));
279 goto out_err1;
280 }
281
282 region->ptr.gmrId = rep->cur_gmr_id;
283 region->ptr.offset = rep->cur_gmr_offset;
284 region->data = NULL;
285 region->handle = rep->handle;
286 region->map_handle = rep->map_handle;
287 region->map_count = 0;
288 region->size = size;
289 region->drm_fd = vws->ioctl.drm_fd;
290
291 vmw_printf(" gmrId = %u, offset = %u\n",
292 region->ptr.gmrId, region->ptr.offset);
293
294 return region;
295
296 out_err1:
297 FREE(region);
298 return NULL;
299 }
300
301 void
vmw_ioctl_region_destroy(struct vmw_region * region)302 vmw_ioctl_region_destroy(struct vmw_region *region)
303 {
304 struct drm_vmw_unref_dmabuf_arg arg;
305
306 vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
307 region->ptr.gmrId, region->ptr.offset);
308
309 if (region->data) {
310 os_munmap(region->data, region->size);
311 region->data = NULL;
312 }
313
314 memset(&arg, 0, sizeof(arg));
315 arg.handle = region->handle;
316 drmCommandWrite(region->drm_fd, DRM_VMW_UNREF_DMABUF, &arg, sizeof(arg));
317
318 FREE(region);
319 }
320
321 SVGAGuestPtr
vmw_ioctl_region_ptr(struct vmw_region * region)322 vmw_ioctl_region_ptr(struct vmw_region *region)
323 {
324 return region->ptr;
325 }
326
327 void *
vmw_ioctl_region_map(struct vmw_region * region)328 vmw_ioctl_region_map(struct vmw_region *region)
329 {
330 void *map;
331
332 vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
333 region->ptr.gmrId, region->ptr.offset);
334
335 if (region->data == NULL) {
336 map = os_mmap(NULL, region->size, PROT_READ | PROT_WRITE, MAP_SHARED,
337 region->drm_fd, region->map_handle);
338 if (map == MAP_FAILED) {
339 debug_printf("%s: Map failed.\n", __FUNCTION__);
340 return NULL;
341 }
342
343 region->data = map;
344 }
345
346 ++region->map_count;
347
348 return region->data;
349 }
350
351 void
vmw_ioctl_region_unmap(struct vmw_region * region)352 vmw_ioctl_region_unmap(struct vmw_region *region)
353 {
354 vmw_printf("%s: gmrId = %u, offset = %u\n", __FUNCTION__,
355 region->ptr.gmrId, region->ptr.offset);
356 --region->map_count;
357 }
358
359 void
vmw_ioctl_fence_unref(struct vmw_winsys_screen * vws,uint32_t handle)360 vmw_ioctl_fence_unref(struct vmw_winsys_screen *vws,
361 uint32_t handle)
362 {
363 struct drm_vmw_fence_arg arg;
364 int ret;
365
366 memset(&arg, 0, sizeof(arg));
367 arg.handle = handle;
368
369 ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_FENCE_UNREF,
370 &arg, sizeof(arg));
371 if (ret != 0)
372 debug_printf("%s Failed\n", __FUNCTION__);
373 }
374
375 static INLINE uint32_t
vmw_drm_fence_flags(uint32_t flags)376 vmw_drm_fence_flags(uint32_t flags)
377 {
378 uint32_t dflags = 0;
379
380 if (flags & SVGA_FENCE_FLAG_EXEC)
381 dflags |= DRM_VMW_FENCE_FLAG_EXEC;
382 if (flags & SVGA_FENCE_FLAG_QUERY)
383 dflags |= DRM_VMW_FENCE_FLAG_QUERY;
384
385 return dflags;
386 }
387
388
389 int
vmw_ioctl_fence_signalled(struct vmw_winsys_screen * vws,uint32_t handle,uint32_t flags)390 vmw_ioctl_fence_signalled(struct vmw_winsys_screen *vws,
391 uint32_t handle,
392 uint32_t flags)
393 {
394 struct drm_vmw_fence_signaled_arg arg;
395 uint32_t vflags = vmw_drm_fence_flags(flags);
396 int ret;
397
398 memset(&arg, 0, sizeof(arg));
399 arg.handle = handle;
400 arg.flags = vflags;
401
402 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_SIGNALED,
403 &arg, sizeof(arg));
404
405 if (ret != 0)
406 return ret;
407
408 return (arg.signaled) ? 0 : -1;
409 }
410
411
412
413 int
vmw_ioctl_fence_finish(struct vmw_winsys_screen * vws,uint32_t handle,uint32_t flags)414 vmw_ioctl_fence_finish(struct vmw_winsys_screen *vws,
415 uint32_t handle,
416 uint32_t flags)
417 {
418 struct drm_vmw_fence_wait_arg arg;
419 uint32_t vflags = vmw_drm_fence_flags(flags);
420 int ret;
421
422 memset(&arg, 0, sizeof(arg));
423
424 arg.handle = handle;
425 arg.timeout_us = 10*1000000;
426 arg.lazy = 0;
427 arg.flags = vflags;
428
429 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_FENCE_WAIT,
430 &arg, sizeof(arg));
431
432 if (ret != 0)
433 debug_printf("%s Failed\n", __FUNCTION__);
434
435 return 0;
436 }
437
438
439 boolean
vmw_ioctl_init(struct vmw_winsys_screen * vws)440 vmw_ioctl_init(struct vmw_winsys_screen *vws)
441 {
442 struct drm_vmw_getparam_arg gp_arg;
443 struct drm_vmw_get_3d_cap_arg cap_arg;
444 unsigned int size;
445 int ret;
446
447 VMW_FUNC;
448
449 memset(&gp_arg, 0, sizeof(gp_arg));
450 gp_arg.param = DRM_VMW_PARAM_3D;
451 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
452 &gp_arg, sizeof(gp_arg));
453 if (ret || gp_arg.value == 0) {
454 debug_printf("No 3D enabled (%i, %s).\n", ret, strerror(-ret));
455 goto out_no_3d;
456 }
457
458 memset(&gp_arg, 0, sizeof(gp_arg));
459 gp_arg.param = DRM_VMW_PARAM_FIFO_HW_VERSION;
460 ret = drmCommandWriteRead(vws->ioctl.drm_fd, DRM_VMW_GET_PARAM,
461 &gp_arg, sizeof(gp_arg));
462 if (ret) {
463 debug_printf("Failed to get fifo hw version"
464 " (%i, %s).\n", ret, strerror(-ret));
465 goto out_no_3d;
466 }
467 vws->ioctl.hwversion = gp_arg.value;
468
469 size = SVGA_FIFO_3D_CAPS_SIZE * sizeof(uint32_t);
470 vws->ioctl.buffer = calloc(1, size);
471 if (!vws->ioctl.buffer) {
472 debug_printf("Failed alloc fifo 3D caps buffer.\n");
473 goto out_no_3d;
474 }
475
476 memset(&cap_arg, 0, sizeof(cap_arg));
477 cap_arg.buffer = (uint64_t) (unsigned long) (vws->ioctl.buffer);
478 cap_arg.max_size = size;
479
480 ret = drmCommandWrite(vws->ioctl.drm_fd, DRM_VMW_GET_3D_CAP,
481 &cap_arg, sizeof(cap_arg));
482
483 if (ret) {
484 debug_printf("Failed to get 3D capabilities"
485 " (%i, %s).\n", ret, strerror(-ret));
486 goto out_no_caps;
487 }
488
489 vmw_printf("%s OK\n", __FUNCTION__);
490 return TRUE;
491 out_no_caps:
492 free(vws->ioctl.buffer);
493 out_no_3d:
494 debug_printf("%s Failed\n", __FUNCTION__);
495 return FALSE;
496 }
497
498
499
500 void
vmw_ioctl_cleanup(struct vmw_winsys_screen * vws)501 vmw_ioctl_cleanup(struct vmw_winsys_screen *vws)
502 {
503 VMW_FUNC;
504 }
505