1// SPDX-License-Identifier: MIT
2
3#include "crc.h"
4#include "crcc37d.h"
5#include "core.h"
6#include "disp.h"
7#include "head.h"
8
9#include <nvif/pushc37b.h>
10
11#include <nvhw/class/clc57d.h>
12
13static int crcc57d_set_src(struct nv50_head *head, int or, enum nv50_crc_source_type source,
14 struct nv50_crc_notifier_ctx *ctx)
15{
16 struct nvif_push *push = nv50_disp(dev: head->base.base.dev)->core->chan.push;
17 const int i = head->base.index;
18 u32 crc_args = NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, CONTROLLING_CHANNEL, CORE) |
19 NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, EXPECT_BUFFER_COLLAPSE, FALSE) |
20 NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, SECONDARY_CRC, NONE) |
21 NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, CRC_DURING_SNOOZE, DISABLE);
22 int ret;
23
24 switch (source) {
25 case NV50_CRC_SOURCE_TYPE_SOR:
26 crc_args |= NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, PRIMARY_CRC, SOR(or));
27 break;
28 case NV50_CRC_SOURCE_TYPE_SF:
29 crc_args |= NVDEF(NVC57D, HEAD_SET_CRC_CONTROL, PRIMARY_CRC, SF);
30 break;
31 default:
32 break;
33 }
34
35 ret = PUSH_WAIT(push, 4);
36 if (ret)
37 return ret;
38
39 if (source) {
40 PUSH_MTHD(push, NVC57D, HEAD_SET_CONTEXT_DMA_CRC(i), ctx->ntfy.handle);
41 PUSH_MTHD(push, NVC57D, HEAD_SET_CRC_CONTROL(i), crc_args);
42 } else {
43 PUSH_MTHD(push, NVC57D, HEAD_SET_CRC_CONTROL(i), 0);
44 PUSH_MTHD(push, NVC57D, HEAD_SET_CONTEXT_DMA_CRC(i), 0);
45 }
46
47 return 0;
48}
49
50const struct nv50_crc_func crcc57d = {
51 .set_src = crcc57d_set_src,
52 .set_ctx = crcc37d_set_ctx,
53 .get_entry = crcc37d_get_entry,
54 .ctx_finished = crcc37d_ctx_finished,
55 .flip_threshold = CRCC37D_FLIP_THRESHOLD,
56 .num_entries = CRCC37D_MAX_ENTRIES,
57 .notifier_len = sizeof(struct crcc37d_notifier),
58};
59

source code of linux/drivers/gpu/drm/nouveau/dispnv50/crcc57d.c