amdgpu_glamor.c revision 11bf0794 
1/*
2 * Copyright © 2011 Intel Corporation.
3 *             2012 Advanced Micro Devices, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation
7 * files (the "Software"), to deal in the Software without
8 * restriction, including without limitation the rights to use, copy,
9 * modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including
14 * the next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 */
26
27#ifdef HAVE_CONFIG_H
28#include "config.h"
29#endif
30
31#include <xf86.h>
32
33#include "amdgpu_bo_helper.h"
34#include "amdgpu_pixmap.h"
35#include "amdgpu_glamor.h"
36
37#include <gbm.h>
38
39#ifndef HAVE_GLAMOR_FINISH
40#include <GL/gl.h>
41#endif
42
43DevPrivateKeyRec amdgpu_pixmap_index;
44
45void amdgpu_glamor_exchange_buffers(PixmapPtr src, PixmapPtr dst)
46{
47	AMDGPUInfoPtr info = AMDGPUPTR(xf86ScreenToScrn(dst->drawable.pScreen));
48
49	if (!info->use_glamor)
50		return;
51	glamor_egl_exchange_buffers(src, dst);
52}
53
54Bool amdgpu_glamor_create_screen_resources(ScreenPtr screen)
55{
56	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
57	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
58	uint32_t bo_handle;
59
60	if (!info->use_glamor)
61		return TRUE;
62
63#ifdef HAVE_GLAMOR_GLYPHS_INIT
64	if (!glamor_glyphs_init(screen))
65		return FALSE;
66#endif
67
68	if (!amdgpu_bo_get_handle(info->front_buffer, &bo_handle) ||
69	    !glamor_egl_create_textured_screen_ext(screen,
70						   bo_handle,
71						   scrn->displayWidth *
72						   info->pixel_bytes, NULL)) {
73		return FALSE;
74	}
75
76	return TRUE;
77}
78
79Bool amdgpu_glamor_pre_init(ScrnInfoPtr scrn)
80{
81	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
82	pointer glamor_module;
83	CARD32 version;
84
85	if (!info->dri2.available)
86		return FALSE;
87
88	if (scrn->depth < 24) {
89		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
90			   "glamor requires depth >= 24, disabling.\n");
91		return FALSE;
92	}
93#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(1,15,0,0,0)
94	if (!xf86LoaderCheckSymbol("glamor_egl_init")) {
95		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
96			   "glamor requires Load \"glamoregl\" in "
97			   "Section \"Module\", disabling.\n");
98		return FALSE;
99	}
100#endif
101
102	/* Load glamor module */
103	if ((glamor_module = xf86LoadSubModule(scrn, GLAMOR_EGL_MODULE_NAME))) {
104		version = xf86GetModuleVersion(glamor_module);
105		if (version < MODULE_VERSION_NUMERIC(0, 3, 1)) {
106			xf86DrvMsg(scrn->scrnIndex, X_ERROR,
107				   "Incompatible glamor version, required >= 0.3.0.\n");
108			return FALSE;
109		} else {
110			AMDGPUEntPtr pAMDGPUEnt = AMDGPUEntPriv(scrn);
111
112			if (glamor_egl_init(scrn, pAMDGPUEnt->fd)) {
113				xf86DrvMsg(scrn->scrnIndex, X_INFO,
114					   "glamor detected, initialising EGL layer.\n");
115			} else {
116				xf86DrvMsg(scrn->scrnIndex, X_ERROR,
117					   "glamor detected, failed to initialize EGL.\n");
118				return FALSE;
119			}
120		}
121	} else {
122		xf86DrvMsg(scrn->scrnIndex, X_ERROR, "glamor not available\n");
123		return FALSE;
124	}
125
126	info->use_glamor = TRUE;
127
128	return TRUE;
129}
130
131Bool
132amdgpu_glamor_create_textured_pixmap(PixmapPtr pixmap, struct amdgpu_buffer *bo)
133{
134	ScrnInfoPtr scrn = xf86ScreenToScrn(pixmap->drawable.pScreen);
135	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
136	uint32_t bo_handle;
137
138	if ((info->use_glamor) == 0)
139		return TRUE;
140
141	if (!amdgpu_bo_get_handle(bo, &bo_handle))
142		return FALSE;
143
144	return glamor_egl_create_textured_pixmap(pixmap, bo_handle,
145						 pixmap->devKind);
146}
147
148static Bool amdgpu_glamor_destroy_pixmap(PixmapPtr pixmap)
149{
150#ifndef HAVE_GLAMOR_EGL_DESTROY_TEXTURED_PIXMAP
151	ScreenPtr screen = pixmap->drawable.pScreen;
152	AMDGPUInfoPtr info = AMDGPUPTR(xf86ScreenToScrn(screen));
153	Bool ret;
154#endif
155
156	if (pixmap->refcnt == 1) {
157		if (pixmap->devPrivate.ptr) {
158			struct amdgpu_buffer *bo = amdgpu_get_pixmap_bo(pixmap);
159
160			if (bo)
161				amdgpu_bo_unmap(bo);
162		}
163
164#ifdef HAVE_GLAMOR_EGL_DESTROY_TEXTURED_PIXMAP
165		glamor_egl_destroy_textured_pixmap(pixmap);
166#endif
167		amdgpu_set_pixmap_bo(pixmap, NULL);
168	}
169
170#ifdef HAVE_GLAMOR_EGL_DESTROY_TEXTURED_PIXMAP
171	fbDestroyPixmap(pixmap);
172	return TRUE;
173#else
174	screen->DestroyPixmap = info->glamor.SavedDestroyPixmap;
175	ret = screen->DestroyPixmap(pixmap);
176	info->glamor.SavedDestroyPixmap = screen->DestroyPixmap;
177	screen->DestroyPixmap = amdgpu_glamor_destroy_pixmap;
178
179	return ret;
180#endif
181}
182
183static PixmapPtr
184amdgpu_glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
185			    unsigned usage)
186{
187	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
188	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
189	struct amdgpu_pixmap *priv;
190	PixmapPtr pixmap, new_pixmap = NULL;
191
192	if (!AMDGPU_CREATE_PIXMAP_SHARED(usage)) {
193		if (info->shadow_primary) {
194			if (usage != CREATE_PIXMAP_USAGE_BACKING_PIXMAP)
195				return fbCreatePixmap(screen, w, h, depth, usage);
196
197			usage |= AMDGPU_CREATE_PIXMAP_LINEAR |
198				 AMDGPU_CREATE_PIXMAP_GTT;
199		} else {
200			pixmap = glamor_create_pixmap(screen, w, h, depth, usage);
201			if (pixmap)
202				return pixmap;
203		}
204	}
205
206	if (w > 32767 || h > 32767)
207		return NullPixmap;
208
209	if (depth == 1)
210		return fbCreatePixmap(screen, w, h, depth, usage);
211
212	if (usage == CREATE_PIXMAP_USAGE_GLYPH_PICTURE && w <= 32 && h <= 32)
213		return fbCreatePixmap(screen, w, h, depth, usage);
214
215	pixmap = fbCreatePixmap(screen, 0, 0, depth, usage);
216	if (pixmap == NullPixmap)
217		return pixmap;
218
219	if (w && h) {
220		int stride;
221
222		priv = calloc(1, sizeof(struct amdgpu_pixmap));
223		if (priv == NULL)
224			goto fallback_pixmap;
225
226		priv->bo = amdgpu_alloc_pixmap_bo(scrn, w, h, depth, usage,
227						  pixmap->drawable.bitsPerPixel,
228						  &stride);
229		if (!priv->bo)
230			goto fallback_priv;
231
232		amdgpu_set_pixmap_private(pixmap, priv);
233
234		screen->ModifyPixmapHeader(pixmap, w, h, 0, 0, stride, NULL);
235
236		pixmap->devPrivate.ptr = NULL;
237
238		if (!amdgpu_glamor_create_textured_pixmap(pixmap, priv->bo))
239			goto fallback_glamor;
240	}
241
242	return pixmap;
243
244fallback_glamor:
245	if (AMDGPU_CREATE_PIXMAP_SHARED(usage)) {
246		/* XXX need further work to handle the DRI2 failure case.
247		 * Glamor don't know how to handle a BO only pixmap. Put
248		 * a warning indicator here.
249		 */
250		xf86DrvMsg(scrn->scrnIndex, X_WARNING,
251			   "Failed to create textured DRI2/PRIME pixmap.");
252
253		amdgpu_glamor_destroy_pixmap(pixmap);
254		return NullPixmap;
255	}
256	/* Create textured pixmap failed means glamor failed to
257	 * create a texture from current BO for some reasons. We turn
258	 * to create a new glamor pixmap and clean up current one.
259	 * One thing need to be noted, this new pixmap doesn't
260	 * has a priv and bo attached to it. It's glamor's responsbility
261	 * to take care of it. Glamor will mark this new pixmap as a
262	 * texture only pixmap and will never fallback to DDX layer
263	 * afterwards.
264	 */
265	new_pixmap = glamor_create_pixmap(screen, w, h, depth, usage);
266	amdgpu_bo_unref(&priv->bo);
267fallback_priv:
268	free(priv);
269fallback_pixmap:
270	fbDestroyPixmap(pixmap);
271	if (new_pixmap)
272		return new_pixmap;
273	else
274		return fbCreatePixmap(screen, w, h, depth, usage);
275}
276
277PixmapPtr
278amdgpu_glamor_set_pixmap_bo(DrawablePtr drawable, PixmapPtr pixmap)
279{
280	PixmapPtr old = get_drawable_pixmap(drawable);
281	ScreenPtr screen = drawable->pScreen;
282	struct amdgpu_pixmap *priv = amdgpu_get_pixmap_private(pixmap);
283	GCPtr gc;
284
285	/* With a glamor pixmap, 2D pixmaps are created in texture
286	 * and without a static BO attached to it. To support DRI,
287	 * we need to create a new textured-drm pixmap and
288	 * need to copy the original content to this new textured-drm
289	 * pixmap, and then convert the old pixmap to a coherent
290	 * textured-drm pixmap which has a valid BO attached to it
291	 * and also has a valid texture, thus both glamor and DRI2
292	 * can access it.
293	 *
294	 */
295
296	/* Copy the current contents of the pixmap to the bo. */
297	gc = GetScratchGC(drawable->depth, screen);
298	if (gc) {
299		ValidateGC(&pixmap->drawable, gc);
300		gc->ops->CopyArea(&old->drawable, &pixmap->drawable,
301				  gc,
302				  0, 0,
303				  old->drawable.width,
304				  old->drawable.height, 0, 0);
305		FreeScratchGC(gc);
306	}
307
308	/* And redirect the pixmap to the new bo (for 3D). */
309	glamor_egl_exchange_buffers(old, pixmap);
310	amdgpu_set_pixmap_private(pixmap, amdgpu_get_pixmap_private(old));
311	amdgpu_set_pixmap_private(old, priv);
312
313	screen->ModifyPixmapHeader(old,
314				   old->drawable.width,
315				   old->drawable.height,
316				   0, 0, pixmap->devKind, NULL);
317	old->devPrivate.ptr = NULL;
318
319	screen->DestroyPixmap(pixmap);
320
321	return old;
322}
323
324#ifdef AMDGPU_PIXMAP_SHARING
325
326static Bool
327amdgpu_glamor_share_pixmap_backing(PixmapPtr pixmap, ScreenPtr slave,
328				   void **handle_p)
329{
330	ScreenPtr screen = pixmap->drawable.pScreen;
331	uint64_t tiling_info;
332	CARD16 stride;
333	CARD32 size;
334	int fd;
335
336	tiling_info = amdgpu_pixmap_get_tiling_info(pixmap);
337	if (AMDGPU_TILING_GET(tiling_info, ARRAY_MODE) != 0) {
338		PixmapPtr linear;
339
340		/* We don't want to re-allocate the screen pixmap as
341		 * linear, to avoid trouble with page flipping
342		 */
343		if (screen->GetScreenPixmap(screen) == pixmap)
344			return FALSE;
345
346		linear = screen->CreatePixmap(screen, pixmap->drawable.width,
347					      pixmap->drawable.height,
348					      pixmap->drawable.depth,
349					      CREATE_PIXMAP_USAGE_SHARED);
350		if (!linear)
351			return FALSE;
352
353		amdgpu_glamor_set_pixmap_bo(&pixmap->drawable, linear);
354	}
355
356	fd = glamor_fd_from_pixmap(screen, pixmap, &stride, &size);
357	if (fd < 0)
358		return FALSE;
359
360	*handle_p = (void *)(long)fd;
361	return TRUE;
362}
363
364static Bool
365amdgpu_glamor_set_shared_pixmap_backing(PixmapPtr pixmap, void *handle)
366{
367	ScreenPtr screen = pixmap->drawable.pScreen;
368	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
369	struct amdgpu_pixmap *priv;
370
371	if (!amdgpu_set_shared_pixmap_backing(pixmap, handle))
372		return FALSE;
373
374	priv = amdgpu_get_pixmap_private(pixmap);
375
376	if (!amdgpu_glamor_create_textured_pixmap(pixmap, priv->bo)) {
377		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
378			   "Failed to get PRIME drawable for glamor pixmap.\n");
379		return FALSE;
380	}
381
382	screen->ModifyPixmapHeader(pixmap,
383				   pixmap->drawable.width,
384				   pixmap->drawable.height,
385				   0, 0, 0, NULL);
386
387	return TRUE;
388}
389
390#endif /* AMDGPU_PIXMAP_SHARING */
391
392Bool amdgpu_glamor_init(ScreenPtr screen)
393{
394	ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
395	AMDGPUInfoPtr info = AMDGPUPTR(scrn);
396#ifdef RENDER
397#ifdef HAVE_FBGLYPHS
398	UnrealizeGlyphProcPtr SavedUnrealizeGlyph = NULL;
399#endif
400	PictureScreenPtr ps = NULL;
401
402	if (info->shadow_primary) {
403		ps = GetPictureScreenIfSet(screen);
404
405		if (ps) {
406#ifdef HAVE_FBGLYPHS
407			SavedUnrealizeGlyph = ps->UnrealizeGlyph;
408#endif
409			info->glamor.SavedGlyphs = ps->Glyphs;
410			info->glamor.SavedTriangles = ps->Triangles;
411			info->glamor.SavedTrapezoids = ps->Trapezoids;
412		}
413	}
414#endif /* RENDER */
415
416	if (!glamor_init(screen, GLAMOR_USE_EGL_SCREEN | GLAMOR_USE_SCREEN |
417			 GLAMOR_USE_PICTURE_SCREEN | GLAMOR_INVERTED_Y_AXIS |
418			 GLAMOR_NO_DRI3)) {
419		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
420			   "Failed to initialize glamor.\n");
421		return FALSE;
422	}
423
424	if (!glamor_egl_init_textured_pixmap(screen)) {
425		xf86DrvMsg(scrn->scrnIndex, X_ERROR,
426			   "Failed to initialize textured pixmap of screen for glamor.\n");
427		return FALSE;
428	}
429	if (!dixRegisterPrivateKey(&amdgpu_pixmap_index, PRIVATE_PIXMAP, 0))
430		return FALSE;
431
432	if (info->shadow_primary)
433		amdgpu_glamor_screen_init(screen);
434
435#if defined(RENDER) && defined(HAVE_FBGLYPHS)
436	/* For ShadowPrimary, we need fbUnrealizeGlyph instead of
437	 * glamor_unrealize_glyph
438	 */
439	if (ps)
440		ps->UnrealizeGlyph = SavedUnrealizeGlyph;
441#endif
442
443	info->glamor.SavedCreatePixmap = screen->CreatePixmap;
444	screen->CreatePixmap = amdgpu_glamor_create_pixmap;
445	info->glamor.SavedDestroyPixmap = screen->DestroyPixmap;
446	screen->DestroyPixmap = amdgpu_glamor_destroy_pixmap;
447#ifdef AMDGPU_PIXMAP_SHARING
448	info->glamor.SavedSharePixmapBacking = screen->SharePixmapBacking;
449	screen->SharePixmapBacking = amdgpu_glamor_share_pixmap_backing;
450	info->glamor.SavedSetSharedPixmapBacking = screen->SetSharedPixmapBacking;
451	screen->SetSharedPixmapBacking =
452	    amdgpu_glamor_set_shared_pixmap_backing;
453#endif
454
455	xf86DrvMsg(scrn->scrnIndex, X_INFO, "Use GLAMOR acceleration.\n");
456	return TRUE;
457}
458
459void amdgpu_glamor_flush(ScrnInfoPtr pScrn)
460{
461	AMDGPUInfoPtr info = AMDGPUPTR(pScrn);
462
463	if (info->use_glamor) {
464		glamor_block_handler(pScrn->pScreen);
465	}
466
467	info->gpu_flushed++;
468}
469
470void amdgpu_glamor_finish(ScrnInfoPtr pScrn)
471{
472	AMDGPUInfoPtr info = AMDGPUPTR(pScrn);
473
474	if (info->use_glamor) {
475#if HAVE_GLAMOR_FINISH
476		glamor_finish(pScrn->pScreen);
477		info->gpu_flushed++;
478#else
479		amdgpu_glamor_flush(pScrn);
480		glFinish();
481#endif
482	}
483}
484
485void
486amdgpu_glamor_fini(ScreenPtr screen)
487{
488	AMDGPUInfoPtr info = AMDGPUPTR(xf86ScreenToScrn(screen));
489
490	if (!info->use_glamor)
491		return;
492
493	screen->CreatePixmap = info->glamor.SavedCreatePixmap;
494	screen->DestroyPixmap = info->glamor.SavedDestroyPixmap;
495#ifdef AMDGPU_PIXMAP_SHARING
496	screen->SharePixmapBacking = info->glamor.SavedSharePixmapBacking;
497	screen->SetSharedPixmapBacking = info->glamor.SavedSetSharedPixmapBacking;
498#endif
499}
500
501XF86VideoAdaptorPtr amdgpu_glamor_xv_init(ScreenPtr pScreen, int num_adapt)
502{
503	return glamor_xv_init(pScreen, num_adapt);
504}
505