1 /*
2 * Copyright © 2014 Broadcom
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #include "util/u_math.h"
25 #include "util/ralloc.h"
26 #include "vc4_context.h"
27
28 void
vc4_init_cl(struct vc4_job * job,struct vc4_cl * cl)29 vc4_init_cl(struct vc4_job *job, struct vc4_cl *cl)
30 {
31 cl->base = rzalloc_size(job, 1); /* TODO: don't use rzalloc */
32 cl->next = cl->base;
33 cl->size = 0;
34 cl->job = job;
35 }
36
37 void
cl_ensure_space(struct vc4_cl * cl,uint32_t space)38 cl_ensure_space(struct vc4_cl *cl, uint32_t space)
39 {
40 uint32_t offset = cl_offset(cl);
41
42 if (offset + space <= cl->size)
43 return;
44
45 uint32_t size = MAX2(cl->size + space, cl->size * 2);
46
47 cl->base = reralloc(ralloc_parent(cl->base), cl->base, uint8_t, size);
48 cl->size = size;
49 cl->next = cl->base + offset;
50 }
51
52 void
vc4_reset_cl(struct vc4_cl * cl)53 vc4_reset_cl(struct vc4_cl *cl)
54 {
55 assert(cl->reloc_count == 0);
56 cl->next = cl->base;
57 }
58
59 uint32_t
vc4_gem_hindex(struct vc4_job * job,struct vc4_bo * bo)60 vc4_gem_hindex(struct vc4_job *job, struct vc4_bo *bo)
61 {
62 uint32_t hindex;
63 uint32_t *current_handles = job->bo_handles.base;
64 uint32_t cl_hindex_count = cl_offset(&job->bo_handles) / 4;
65 uint32_t last_hindex = bo->last_hindex; /* volatile read! */
66
67 if (last_hindex < cl_hindex_count &&
68 current_handles[last_hindex] == bo->handle) {
69 return last_hindex;
70 }
71
72 for (hindex = 0; hindex < cl_hindex_count; hindex++) {
73 if (current_handles[hindex] == bo->handle) {
74 bo->last_hindex = hindex;
75 return hindex;
76 }
77 }
78
79 struct vc4_cl_out *out;
80
81 out = cl_start(&job->bo_handles);
82 cl_u32(&out, bo->handle);
83 cl_end(&job->bo_handles, out);
84
85 out = cl_start(&job->bo_pointers);
86 cl_ptr(&out, vc4_bo_reference(bo));
87 cl_end(&job->bo_pointers, out);
88
89 job->bo_space += bo->size;
90
91 bo->last_hindex = hindex;
92 return hindex;
93 }
94