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"
29 #include "util/u_memory.h"
31 static void r600_buffer_destroy(struct pipe_screen
*screen
,
32 struct pipe_resource
*buf
)
34 struct r600_resource
*rbuffer
= r600_resource(buf
);
36 pb_reference(&rbuffer
->buf
, NULL
);
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 !(transfer
->usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
91 assert(transfer
->usage
& PIPE_TRANSFER_WRITE
);
93 /* Check if mapping this buffer would cause waiting for the GPU. */
94 if (rctx
->ws
->cs_is_buffer_referenced(rctx
->cs
, rbuffer
->cs_buf
, RADEON_USAGE_READWRITE
) ||
95 rctx
->ws
->buffer_is_busy(rbuffer
->buf
, RADEON_USAGE_READWRITE
)) {
98 /* Discard the buffer. */
99 pb_reference(&rbuffer
->buf
, NULL
);
101 /* Create a new one in the same pipe_resource. */
102 /* XXX We probably want a different alignment for buffers and textures. */
103 r600_init_resource(rctx
->screen
, rbuffer
, rbuffer
->b
.b
.width0
, 4096,
104 rbuffer
->b
.b
.bind
, rbuffer
->b
.b
.usage
);
106 /* We changed the buffer, now we need to bind it where the old one was bound. */
107 /* Vertex buffers. */
108 for (i
= 0; i
< rctx
->nr_vertex_buffers
; i
++) {
109 if (rctx
->vertex_buffer
[i
].buffer
== &rbuffer
->b
.b
) {
110 struct r600_vertexbuf_state
* state
=
111 &rctx
->vertex_buffer_state
;
112 state
->dirty_mask
|= 1 << i
;
113 r600_inval_vertex_cache(rctx
);
114 r600_atom_dirty(rctx
, &state
->atom
);
117 /* Streamout buffers. */
118 for (i
= 0; i
< rctx
->num_so_targets
; i
++) {
119 if (rctx
->so_targets
[i
]->b
.buffer
== &rbuffer
->b
.b
) {
120 r600_context_streamout_end(rctx
);
121 rctx
->streamout_start
= TRUE
;
122 rctx
->streamout_append_bitmask
= ~0;
125 /* Constant buffers. */
126 r600_set_constants_dirty_if_bound(rctx
, &rctx
->vs_constbuf_state
, rbuffer
);
127 r600_set_constants_dirty_if_bound(rctx
, &rctx
->ps_constbuf_state
, rbuffer
);
131 data
= rctx
->ws
->buffer_map(rbuffer
->cs_buf
, rctx
->cs
, transfer
->usage
);
135 return (uint8_t*)data
+ transfer
->box
.x
;
138 static void r600_buffer_transfer_unmap(struct pipe_context
*pipe
,
139 struct pipe_transfer
*transfer
)
144 static void r600_transfer_destroy(struct pipe_context
*ctx
,
145 struct pipe_transfer
*transfer
)
147 struct r600_context
*rctx
= (struct r600_context
*)ctx
;
148 util_slab_free(&rctx
->pool_transfers
, transfer
);
151 static const struct u_resource_vtbl r600_buffer_vtbl
=
153 u_default_resource_get_handle
, /* get_handle */
154 r600_buffer_destroy
, /* resource_destroy */
155 r600_get_transfer
, /* get_transfer */
156 r600_transfer_destroy
, /* transfer_destroy */
157 r600_buffer_transfer_map
, /* transfer_map */
158 NULL
, /* transfer_flush_region */
159 r600_buffer_transfer_unmap
, /* transfer_unmap */
160 NULL
/* transfer_inline_write */
163 bool r600_init_resource(struct r600_screen
*rscreen
,
164 struct r600_resource
*res
,
165 unsigned size
, unsigned alignment
,
166 unsigned bind
, unsigned usage
)
168 uint32_t initial_domain
, domains
;
170 /* Staging resources particpate in transfers and blits only
171 * and are used for uploads and downloads from regular
172 * resources. We generate them internally for some transfers.
174 if (usage
== PIPE_USAGE_STAGING
) {
175 domains
= RADEON_DOMAIN_GTT
;
176 initial_domain
= RADEON_DOMAIN_GTT
;
178 domains
= RADEON_DOMAIN_GTT
| RADEON_DOMAIN_VRAM
;
181 case PIPE_USAGE_DYNAMIC
:
182 case PIPE_USAGE_STREAM
:
183 case PIPE_USAGE_STAGING
:
184 initial_domain
= RADEON_DOMAIN_GTT
;
186 case PIPE_USAGE_DEFAULT
:
187 case PIPE_USAGE_STATIC
:
188 case PIPE_USAGE_IMMUTABLE
:
190 initial_domain
= RADEON_DOMAIN_VRAM
;
195 res
->buf
= rscreen
->ws
->buffer_create(rscreen
->ws
, size
, alignment
, bind
, initial_domain
);
200 res
->cs_buf
= rscreen
->ws
->buffer_get_cs_handle(res
->buf
);
201 res
->domains
= domains
;
205 struct pipe_resource
*r600_buffer_create(struct pipe_screen
*screen
,
206 const struct pipe_resource
*templ
)
208 struct r600_screen
*rscreen
= (struct r600_screen
*)screen
;
209 struct r600_resource
*rbuffer
;
210 /* XXX We probably want a different alignment for buffers and textures. */
211 unsigned alignment
= 4096;
213 rbuffer
= MALLOC_STRUCT(r600_resource
);
215 rbuffer
->b
.b
= *templ
;
216 pipe_reference_init(&rbuffer
->b
.b
.reference
, 1);
217 rbuffer
->b
.b
.screen
= screen
;
218 rbuffer
->b
.vtbl
= &r600_buffer_vtbl
;
220 if (!r600_init_resource(rscreen
, rbuffer
, templ
->width0
, alignment
, templ
->bind
, templ
->usage
)) {
224 return &rbuffer
->b
.b
;