2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
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:
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
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.
25 * Corbin Simpson <MostAwesomeDude@gmail.com>
27 #include "r600_pipe.h"
28 #include "util/u_upload_mgr.h"
30 static void r600_buffer_destroy(struct pipe_screen
*screen
,
31 struct pipe_resource
*buf
)
33 struct r600_screen
*rscreen
= (struct r600_screen
*)screen
;
34 struct r600_resource
*rbuffer
= r600_resource(buf
);
36 pb_reference(&rbuffer
->buf
, NULL
);
37 util_slab_free(&rscreen
->pool_buffers
, rbuffer
);
40 static struct pipe_transfer
*r600_get_transfer(struct pipe_context
*ctx
,
41 struct pipe_resource
*resource
,
44 const struct pipe_box
*box
)
46 struct r600_context
*rctx
= (struct r600_context
*)ctx
;
47 struct pipe_transfer
*transfer
= util_slab_alloc(&rctx
->pool_transfers
);
49 transfer
->resource
= resource
;
50 transfer
->level
= level
;
51 transfer
->usage
= usage
;
54 transfer
->layer_stride
= 0;
55 transfer
->data
= NULL
;
57 /* Note strides are zero, this is ok for buffers, but not for
58 * textures 2d & higher at least.
63 static void r600_set_constants_dirty_if_bound(struct r600_context
*rctx
,
64 struct r600_constbuf_state
*state
,
65 struct r600_resource
*rbuffer
)
68 uint32_t mask
= state
->enabled_mask
;
71 unsigned i
= u_bit_scan(&mask
);
72 if (state
->cb
[i
].buffer
== &rbuffer
->b
.b
) {
74 state
->dirty_mask
|= 1 << i
;
78 r600_constant_buffers_dirty(rctx
, state
);
82 static void *r600_buffer_transfer_map(struct pipe_context
*pipe
,
83 struct pipe_transfer
*transfer
)
85 struct r600_resource
*rbuffer
= r600_resource(transfer
->resource
);
86 struct r600_context
*rctx
= (struct r600_context
*)pipe
;
89 if (transfer
->usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
90 /* When mapping for read, we only need to check if the GPU is writing to it. */
91 enum radeon_bo_usage rusage
= transfer
->usage
& PIPE_TRANSFER_WRITE
?
92 RADEON_USAGE_READWRITE
: RADEON_USAGE_WRITE
;
94 /* Check if mapping this buffer would cause waiting for the GPU. */
95 if (rctx
->ws
->cs_is_buffer_referenced(rctx
->cs
, rbuffer
->cs_buf
, rusage
) ||
96 rctx
->ws
->buffer_is_busy(rbuffer
->buf
, rusage
)) {
99 /* Discard the buffer. */
100 pb_reference(&rbuffer
->buf
, NULL
);
102 /* Create a new one in the same pipe_resource. */
103 /* XXX We probably want a different alignment for buffers and textures. */
104 r600_init_resource(rctx
->screen
, rbuffer
, rbuffer
->b
.b
.width0
, 4096,
105 rbuffer
->b
.b
.bind
, rbuffer
->b
.b
.usage
);
107 /* We changed the buffer, now we need to bind it where the old one was bound. */
108 /* Vertex buffers. */
109 for (i
= 0; i
< rctx
->nr_vertex_buffers
; i
++) {
110 if (rctx
->vertex_buffer
[i
].buffer
== &rbuffer
->b
.b
) {
111 r600_inval_vertex_cache(rctx
);
112 r600_atom_dirty(rctx
, &rctx
->vertex_buffer_state
);
115 /* Streamout buffers. */
116 for (i
= 0; i
< rctx
->num_so_targets
; i
++) {
117 if (rctx
->so_targets
[i
]->b
.buffer
== &rbuffer
->b
.b
) {
118 r600_context_streamout_end(rctx
);
119 rctx
->streamout_start
= TRUE
;
120 rctx
->streamout_append_bitmask
= ~0;
123 /* Constant buffers. */
124 r600_set_constants_dirty_if_bound(rctx
, &rctx
->vs_constbuf_state
, rbuffer
);
125 r600_set_constants_dirty_if_bound(rctx
, &rctx
->ps_constbuf_state
, rbuffer
);
129 data
= rctx
->ws
->buffer_map(rbuffer
->cs_buf
, rctx
->cs
, transfer
->usage
);
133 return (uint8_t*)data
+ transfer
->box
.x
;
136 static void r600_buffer_transfer_unmap(struct pipe_context
*pipe
,
137 struct pipe_transfer
*transfer
)
142 static void r600_transfer_destroy(struct pipe_context
*ctx
,
143 struct pipe_transfer
*transfer
)
145 struct r600_context
*rctx
= (struct r600_context
*)ctx
;
146 util_slab_free(&rctx
->pool_transfers
, transfer
);
149 static const struct u_resource_vtbl r600_buffer_vtbl
=
151 u_default_resource_get_handle
, /* get_handle */
152 r600_buffer_destroy
, /* resource_destroy */
153 r600_get_transfer
, /* get_transfer */
154 r600_transfer_destroy
, /* transfer_destroy */
155 r600_buffer_transfer_map
, /* transfer_map */
156 NULL
, /* transfer_flush_region */
157 r600_buffer_transfer_unmap
, /* transfer_unmap */
158 NULL
/* transfer_inline_write */
161 bool r600_init_resource(struct r600_screen
*rscreen
,
162 struct r600_resource
*res
,
163 unsigned size
, unsigned alignment
,
164 unsigned bind
, unsigned usage
)
166 uint32_t initial_domain
, domains
;
168 /* Staging resources particpate in transfers and blits only
169 * and are used for uploads and downloads from regular
170 * resources. We generate them internally for some transfers.
172 if (usage
== PIPE_USAGE_STAGING
) {
173 domains
= RADEON_DOMAIN_GTT
;
174 initial_domain
= RADEON_DOMAIN_GTT
;
176 domains
= RADEON_DOMAIN_GTT
| RADEON_DOMAIN_VRAM
;
179 case PIPE_USAGE_DYNAMIC
:
180 case PIPE_USAGE_STREAM
:
181 case PIPE_USAGE_STAGING
:
182 initial_domain
= RADEON_DOMAIN_GTT
;
184 case PIPE_USAGE_DEFAULT
:
185 case PIPE_USAGE_STATIC
:
186 case PIPE_USAGE_IMMUTABLE
:
188 initial_domain
= RADEON_DOMAIN_VRAM
;
193 res
->buf
= rscreen
->ws
->buffer_create(rscreen
->ws
, size
, alignment
, bind
, initial_domain
);
198 res
->cs_buf
= rscreen
->ws
->buffer_get_cs_handle(res
->buf
);
199 res
->domains
= domains
;
203 struct pipe_resource
*r600_buffer_create(struct pipe_screen
*screen
,
204 const struct pipe_resource
*templ
)
206 struct r600_screen
*rscreen
= (struct r600_screen
*)screen
;
207 struct r600_resource
*rbuffer
;
208 /* XXX We probably want a different alignment for buffers and textures. */
209 unsigned alignment
= 4096;
211 rbuffer
= util_slab_alloc(&rscreen
->pool_buffers
);
213 rbuffer
->b
.b
= *templ
;
214 pipe_reference_init(&rbuffer
->b
.b
.reference
, 1);
215 rbuffer
->b
.b
.screen
= screen
;
216 rbuffer
->b
.vtbl
= &r600_buffer_vtbl
;
218 if (!r600_init_resource(rscreen
, rbuffer
, templ
->width0
, alignment
, templ
->bind
, templ
->usage
)) {
219 util_slab_free(&rscreen
->pool_buffers
, rbuffer
);
222 return &rbuffer
->b
.b
;
225 struct pipe_resource
*r600_user_buffer_create(struct pipe_screen
*screen
,
226 void *ptr
, unsigned bytes
,
229 struct r600_screen
*rscreen
= (struct r600_screen
*)screen
;
230 struct r600_resource
*rbuffer
;
232 rbuffer
= util_slab_alloc(&rscreen
->pool_buffers
);
234 pipe_reference_init(&rbuffer
->b
.b
.reference
, 1);
235 rbuffer
->b
.vtbl
= &r600_buffer_vtbl
;
236 rbuffer
->b
.b
.screen
= screen
;
237 rbuffer
->b
.b
.target
= PIPE_BUFFER
;
238 rbuffer
->b
.b
.format
= PIPE_FORMAT_R8_UNORM
;
239 rbuffer
->b
.b
.usage
= PIPE_USAGE_IMMUTABLE
;
240 rbuffer
->b
.b
.bind
= bind
;
241 rbuffer
->b
.b
.width0
= bytes
;
242 rbuffer
->b
.b
.height0
= 1;
243 rbuffer
->b
.b
.depth0
= 1;
244 rbuffer
->b
.b
.array_size
= 1;
245 rbuffer
->b
.b
.flags
= 0;
247 return &rbuffer
->b
.b
;