1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
29 #ifdef HAVE_CONFIG_H
30 # include <config.h>
31 #endif
32
33 #include <assert.h>
34
35 #include "freedreno_drmif.h"
36 #include "freedreno_priv.h"
37 #include "freedreno_ringbuffer.h"
38
39 struct fd_ringbuffer *
fd_ringbuffer_new(struct fd_pipe * pipe,uint32_t size)40 fd_ringbuffer_new(struct fd_pipe *pipe, uint32_t size)
41 {
42 struct fd_ringbuffer *ring;
43
44 ring = pipe->funcs->ringbuffer_new(pipe, size);
45 if (!ring)
46 return NULL;
47
48 ring->size = size;
49 ring->pipe = pipe;
50 ring->start = ring->funcs->hostptr(ring);
51 ring->end = &(ring->start[size/4]);
52
53 ring->cur = ring->last_start = ring->start;
54
55 return ring;
56 }
57
fd_ringbuffer_del(struct fd_ringbuffer * ring)58 void fd_ringbuffer_del(struct fd_ringbuffer *ring)
59 {
60 ring->funcs->destroy(ring);
61 }
62
63 /* ringbuffers which are IB targets should set the toplevel rb (ie.
64 * the IB source) as it's parent before emitting reloc's, to ensure
65 * the bookkeeping works out properly.
66 */
fd_ringbuffer_set_parent(struct fd_ringbuffer * ring,struct fd_ringbuffer * parent)67 void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring,
68 struct fd_ringbuffer *parent)
69 {
70 ring->parent = parent;
71 }
72
fd_ringbuffer_reset(struct fd_ringbuffer * ring)73 void fd_ringbuffer_reset(struct fd_ringbuffer *ring)
74 {
75 uint32_t *start = ring->start;
76 if (ring->pipe->id == FD_PIPE_2D)
77 start = &ring->start[0x140];
78 ring->cur = ring->last_start = start;
79 if (ring->funcs->reset)
80 ring->funcs->reset(ring);
81 }
82
83 /* maybe get rid of this and use fd_ringmarker_flush() from DDX too? */
fd_ringbuffer_flush(struct fd_ringbuffer * ring)84 int fd_ringbuffer_flush(struct fd_ringbuffer *ring)
85 {
86 return ring->funcs->flush(ring, ring->last_start);
87 }
88
fd_ringbuffer_timestamp(struct fd_ringbuffer * ring)89 uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring)
90 {
91 return ring->last_timestamp;
92 }
93
fd_ringbuffer_reloc(struct fd_ringbuffer * ring,const struct fd_reloc * reloc)94 void fd_ringbuffer_reloc(struct fd_ringbuffer *ring,
95 const struct fd_reloc *reloc)
96 {
97 ring->funcs->emit_reloc(ring, reloc);
98 }
99
100 void
fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer * ring,struct fd_ringmarker * target,struct fd_ringmarker * end)101 fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
102 struct fd_ringmarker *target,
103 struct fd_ringmarker *end)
104 {
105 assert(target->ring == end->ring);
106 ring->funcs->emit_reloc_ring(ring, target, end);
107 }
108
fd_ringmarker_new(struct fd_ringbuffer * ring)109 struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring)
110 {
111 struct fd_ringmarker *marker = NULL;
112
113 marker = calloc(1, sizeof(*marker));
114 if (!marker) {
115 ERROR_MSG("allocation failed");
116 return NULL;
117 }
118
119 marker->ring = ring;
120
121 fd_ringmarker_mark(marker);
122
123 return marker;
124 }
125
fd_ringmarker_del(struct fd_ringmarker * marker)126 void fd_ringmarker_del(struct fd_ringmarker *marker)
127 {
128 free(marker);
129 }
130
fd_ringmarker_mark(struct fd_ringmarker * marker)131 void fd_ringmarker_mark(struct fd_ringmarker *marker)
132 {
133 marker->cur = marker->ring->cur;
134 }
135
fd_ringmarker_dwords(struct fd_ringmarker * start,struct fd_ringmarker * end)136 uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
137 struct fd_ringmarker *end)
138 {
139 return end->cur - start->cur;
140 }
141
fd_ringmarker_flush(struct fd_ringmarker * marker)142 int fd_ringmarker_flush(struct fd_ringmarker *marker)
143 {
144 struct fd_ringbuffer *ring = marker->ring;
145 return ring->funcs->flush(ring, marker->cur);
146 }
147