r600_buffer.c revision b496136af84e396e7890082817b563dc53ac36fc 
1/*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *      Jerome Glisse
25 *      Corbin Simpson <MostAwesomeDude@gmail.com>
26 */
27#include <byteswap.h>
28
29#include "pipe/p_screen.h"
30#include "util/u_format.h"
31#include "util/u_math.h"
32#include "util/u_inlines.h"
33#include "util/u_memory.h"
34#include "util/u_upload_mgr.h"
35
36#include "r600.h"
37#include "radeonsi_pipe.h"
38
39static void r600_buffer_destroy(struct pipe_screen *screen,
40				struct pipe_resource *buf)
41{
42	struct r600_screen *rscreen = (struct r600_screen*)screen;
43	struct r600_resource *rbuffer = r600_resource(buf);
44
45	pb_reference(&rbuffer->buf, NULL);
46	util_slab_free(&rscreen->pool_buffers, rbuffer);
47}
48
49static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
50					       struct pipe_resource *resource,
51					       unsigned level,
52					       unsigned usage,
53					       const struct pipe_box *box)
54{
55	struct r600_context *rctx = (struct r600_context*)ctx;
56	struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
57
58	transfer->resource = resource;
59	transfer->level = level;
60	transfer->usage = usage;
61	transfer->box = *box;
62	transfer->stride = 0;
63	transfer->layer_stride = 0;
64	transfer->data = NULL;
65
66	/* Note strides are zero, this is ok for buffers, but not for
67	 * textures 2d & higher at least.
68	 */
69	return transfer;
70}
71
72static void *r600_buffer_transfer_map(struct pipe_context *pipe,
73				      struct pipe_transfer *transfer)
74{
75	struct r600_resource *rbuffer = r600_resource(transfer->resource);
76	struct r600_context *rctx = (struct r600_context*)pipe;
77	uint8_t *data;
78
79	data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, transfer->usage);
80	if (!data)
81		return NULL;
82
83	return (uint8_t*)data + transfer->box.x;
84}
85
86static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
87					struct pipe_transfer *transfer)
88{
89	/* no-op */
90}
91
92static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
93						struct pipe_transfer *transfer,
94						const struct pipe_box *box)
95{
96}
97
98static void r600_transfer_destroy(struct pipe_context *ctx,
99				  struct pipe_transfer *transfer)
100{
101	struct r600_context *rctx = (struct r600_context*)ctx;
102	util_slab_free(&rctx->pool_transfers, transfer);
103}
104
105static const struct u_resource_vtbl r600_buffer_vtbl =
106{
107	u_default_resource_get_handle,		/* get_handle */
108	r600_buffer_destroy,			/* resource_destroy */
109	r600_get_transfer,			/* get_transfer */
110	r600_transfer_destroy,			/* transfer_destroy */
111	r600_buffer_transfer_map,		/* transfer_map */
112	r600_buffer_transfer_flush_region,	/* transfer_flush_region */
113	r600_buffer_transfer_unmap,		/* transfer_unmap */
114	NULL	/* transfer_inline_write */
115};
116
117bool r600_init_resource(struct r600_screen *rscreen,
118			struct r600_resource *res,
119			unsigned size, unsigned alignment,
120			unsigned bind, unsigned usage)
121{
122	uint32_t initial_domain, domains;
123
124	/* Staging resources particpate in transfers and blits only
125	 * and are used for uploads and downloads from regular
126	 * resources.  We generate them internally for some transfers.
127	 */
128	if (usage == PIPE_USAGE_STAGING) {
129		domains = RADEON_DOMAIN_GTT;
130		initial_domain = RADEON_DOMAIN_GTT;
131	} else {
132		domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
133
134		switch(usage) {
135		case PIPE_USAGE_DYNAMIC:
136		case PIPE_USAGE_STREAM:
137		case PIPE_USAGE_STAGING:
138			initial_domain = RADEON_DOMAIN_GTT;
139			break;
140		case PIPE_USAGE_DEFAULT:
141		case PIPE_USAGE_STATIC:
142		case PIPE_USAGE_IMMUTABLE:
143		default:
144			initial_domain = RADEON_DOMAIN_VRAM;
145			break;
146		}
147	}
148
149	res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
150	if (!res->buf) {
151		return false;
152	}
153
154	res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
155	res->domains = domains;
156	return true;
157}
158
159struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
160					 const struct pipe_resource *templ)
161{
162	struct r600_screen *rscreen = (struct r600_screen*)screen;
163	struct r600_resource *rbuffer;
164	/* XXX We probably want a different alignment for buffers and textures. */
165	unsigned alignment = 4096;
166
167	rbuffer = util_slab_alloc(&rscreen->pool_buffers);
168
169	rbuffer->b.b = *templ;
170	pipe_reference_init(&rbuffer->b.b.reference, 1);
171	rbuffer->b.b.screen = screen;
172	rbuffer->b.vtbl = &r600_buffer_vtbl;
173
174	if (!r600_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
175		util_slab_free(&rscreen->pool_buffers, rbuffer);
176		return NULL;
177	}
178	return &rbuffer->b.b;
179}
180
181void r600_upload_index_buffer(struct r600_context *rctx,
182			      struct pipe_index_buffer *ib, unsigned count)
183{
184	u_upload_data(rctx->uploader, 0, count * ib->index_size,
185		      ib->user_buffer, &ib->offset, &ib->buffer);
186}
187
188void r600_upload_const_buffer(struct r600_context *rctx, struct r600_resource **rbuffer,
189			      const uint8_t *ptr, unsigned size,
190			      uint32_t *const_offset)
191{
192	*rbuffer = NULL;
193
194	if (R600_BIG_ENDIAN) {
195		uint32_t *tmpPtr;
196		unsigned i;
197
198		if (!(tmpPtr = malloc(size))) {
199			R600_ERR("Failed to allocate BE swap buffer.\n");
200			return;
201		}
202
203		for (i = 0; i < size / 4; ++i) {
204			tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
205		}
206
207		u_upload_data(rctx->uploader, 0, size, tmpPtr, const_offset,
208			      (struct pipe_resource**)rbuffer);
209
210		free(tmpPtr);
211	} else {
212		u_upload_data(rctx->uploader, 0, size, ptr, const_offset,
213			      (struct pipe_resource**)rbuffer);
214	}
215}
216