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
28void
29vc4_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
37void
38cl_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
52void
53vc4_reset_cl(struct vc4_cl *cl)
54{
55        assert(cl->reloc_count == 0);
56        cl->next = cl->base;
57}
58
59uint32_t
60vc4_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