1 /*
2 * Copyright © 2014-2017 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 "v3d_context.h"
27 /* We don't expect that the packets we use in this file change across across
28 * hw versions, so we just explicitly set the V3D_VERSION and include
29 * v3dx_pack here
30 */
31 #define V3D_VERSION 33
32 #include "broadcom/common/v3d_macros.h"
33 #include "broadcom/cle/v3dx_pack.h"
34
35 void
v3d_init_cl(struct v3d_job * job,struct v3d_cl * cl)36 v3d_init_cl(struct v3d_job *job, struct v3d_cl *cl)
37 {
38 cl->base = NULL;
39 cl->next = cl->base;
40 cl->size = 0;
41 cl->job = job;
42 }
43
44 uint32_t
v3d_cl_ensure_space(struct v3d_cl * cl,uint32_t space,uint32_t alignment)45 v3d_cl_ensure_space(struct v3d_cl *cl, uint32_t space, uint32_t alignment)
46 {
47 uint32_t offset = align(cl_offset(cl), alignment);
48
49 if (offset + space <= cl->size) {
50 cl->next = cl->base + offset;
51 return offset;
52 }
53
54 v3d_bo_unreference(&cl->bo);
55 cl->bo = v3d_bo_alloc(cl->job->v3d->screen, align(space, 4096), "CL");
56 cl->base = v3d_bo_map(cl->bo);
57 cl->size = cl->bo->size;
58 cl->next = cl->base;
59
60 return 0;
61 }
62
63 void
v3d_cl_ensure_space_with_branch(struct v3d_cl * cl,uint32_t space)64 v3d_cl_ensure_space_with_branch(struct v3d_cl *cl, uint32_t space)
65 {
66 if (cl_offset(cl) + space + cl_packet_length(BRANCH) <= cl->size)
67 return;
68
69 struct v3d_bo *new_bo = v3d_bo_alloc(cl->job->v3d->screen, space, "CL");
70 assert(space <= new_bo->size);
71
72 /* Chain to the new BO from the old one. */
73 if (cl->bo) {
74 cl_emit(cl, BRANCH, branch) {
75 branch.address = cl_address(new_bo, 0);
76 }
77 v3d_bo_unreference(&cl->bo);
78 } else {
79 /* Root the first RCL/BCL BO in the job. */
80 v3d_job_add_bo(cl->job, new_bo);
81 }
82
83 cl->bo = new_bo;
84 cl->base = v3d_bo_map(cl->bo);
85 cl->size = cl->bo->size;
86 cl->next = cl->base;
87 }
88
89 void
v3d_destroy_cl(struct v3d_cl * cl)90 v3d_destroy_cl(struct v3d_cl *cl)
91 {
92 v3d_bo_unreference(&cl->bo);
93 }
94