1 /*
2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23
24 #include "draw/draw_context.h"
25 #include "draw/draw_private.h"
26
27 #include "util/u_simple_list.h"
28 #include "util/u_upload_mgr.h"
29
30 #include "os/os_time.h"
31
32 #include "r300_context.h"
33 #include "r300_cs.h"
34 #include "r300_emit.h"
35
36
r300_flush_and_cleanup(struct r300_context * r300,unsigned flags)37 static void r300_flush_and_cleanup(struct r300_context *r300, unsigned flags)
38 {
39 struct r300_atom *atom;
40
41 r300_emit_hyperz_end(r300);
42 r300_emit_query_end(r300);
43 if (r300->screen->caps.is_r500)
44 r500_emit_index_bias(r300, 0);
45
46 r300->flush_counter++;
47 r300->rws->cs_flush(r300->cs, flags);
48 r300->dirty_hw = 0;
49
50 /* New kitchen sink, baby. */
51 foreach_atom(r300, atom) {
52 if (atom->state || atom->allow_null_state) {
53 r300_mark_atom_dirty(r300, atom);
54 }
55 }
56 r300->vertex_arrays_dirty = TRUE;
57
58 /* Unmark HWTCL state for SWTCL. */
59 if (!r300->screen->caps.has_tcl) {
60 r300->vs_state.dirty = FALSE;
61 r300->vs_constants.dirty = FALSE;
62 r300->clip_state.dirty = FALSE;
63 }
64 }
65
r300_flush(struct pipe_context * pipe,unsigned flags,struct pipe_fence_handle ** fence)66 void r300_flush(struct pipe_context *pipe,
67 unsigned flags,
68 struct pipe_fence_handle **fence)
69 {
70 struct r300_context *r300 = r300_context(pipe);
71 struct pb_buffer **rfence = (struct pb_buffer**)fence;
72
73 if (r300->draw && !r300->draw_vbo_locked)
74 r300_draw_flush_vbuf(r300);
75
76 if (r300->screen->info.drm_minor >= 12) {
77 flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
78 }
79
80 if (rfence) {
81 /* Create a fence, which is a dummy BO. */
82 *rfence = r300->rws->buffer_create(r300->rws, 1, 1,
83 PIPE_BIND_CUSTOM,
84 RADEON_DOMAIN_GTT);
85 /* Add the fence as a dummy relocation. */
86 r300->rws->cs_add_reloc(r300->cs,
87 r300->rws->buffer_get_cs_handle(*rfence),
88 RADEON_USAGE_READWRITE, RADEON_DOMAIN_GTT);
89 }
90
91 if (r300->dirty_hw) {
92 r300_flush_and_cleanup(r300, flags);
93 } else {
94 if (rfence) {
95 /* We have to create a fence object, but the command stream is empty
96 * and we cannot emit an empty CS. Let's write to some reg. */
97 CS_LOCALS(r300);
98 OUT_CS_REG(RB3D_COLOR_CHANNEL_MASK, 0);
99 r300->rws->cs_flush(r300->cs, flags);
100 } else {
101 /* Even if hw is not dirty, we should at least reset the CS in case
102 * the space checking failed for the first draw operation. */
103 r300->rws->cs_flush(r300->cs, flags);
104 }
105 }
106
107 /* Update Hyper-Z status. */
108 if (r300->num_z_clears) {
109 r300->hyperz_time_of_last_flush = os_time_get();
110 } else if (!r300->hyperz_time_of_last_flush > 2000000) {
111 /* 2 seconds without a Z clear pretty much means a dead context
112 * for HyperZ. */
113
114 r300->hiz_in_use = FALSE;
115
116 /* Decompress Z buffer. */
117 if (r300->zmask_in_use) {
118 if (r300->locked_zbuffer) {
119 r300_decompress_zmask_locked(r300);
120 } else {
121 r300_decompress_zmask(r300);
122 }
123
124 r300_flush_and_cleanup(r300, flags);
125 }
126
127 /* Release HyperZ. */
128 r300->rws->cs_request_feature(r300->cs, RADEON_FID_R300_HYPERZ_ACCESS,
129 FALSE);
130 }
131 r300->num_z_clears = 0;
132 }
133
r300_flush_wrapped(struct pipe_context * pipe,struct pipe_fence_handle ** fence)134 static void r300_flush_wrapped(struct pipe_context *pipe,
135 struct pipe_fence_handle **fence)
136 {
137 r300_flush(pipe, 0, fence);
138 }
139
r300_init_flush_functions(struct r300_context * r300)140 void r300_init_flush_functions(struct r300_context* r300)
141 {
142 r300->context.flush = r300_flush_wrapped;
143 }
144