1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2022 Intel Corporation
 4 */
 5
 6#ifndef _XE_GUC_CT_H_
 7#define _XE_GUC_CT_H_
 8
 9#include "xe_guc_ct_types.h"
10
11struct drm_printer;
12struct xe_device;
13
14int xe_guc_ct_init(struct xe_guc_ct *ct);
15int xe_guc_ct_enable(struct xe_guc_ct *ct);
16void xe_guc_ct_disable(struct xe_guc_ct *ct);
17void xe_guc_ct_stop(struct xe_guc_ct *ct);
18void xe_guc_ct_fast_path(struct xe_guc_ct *ct);
19
20struct xe_guc_ct_snapshot *xe_guc_ct_snapshot_capture(struct xe_guc_ct *ct);
21void xe_guc_ct_snapshot_print(struct xe_guc_ct_snapshot *snapshot, struct drm_printer *p);
22void xe_guc_ct_snapshot_free(struct xe_guc_ct_snapshot *snapshot);
23void xe_guc_ct_print(struct xe_guc_ct *ct, struct drm_printer *p, bool want_ctb);
24
25static inline bool xe_guc_ct_enabled(struct xe_guc_ct *ct)
26{
27	return ct->state == XE_GUC_CT_STATE_ENABLED;
28}
29
30static inline void xe_guc_ct_irq_handler(struct xe_guc_ct *ct)
31{
32	if (!xe_guc_ct_enabled(ct))
33		return;
34
35	wake_up_all(&ct->wq);
36	queue_work(ct->g2h_wq, &ct->g2h_worker);
37	xe_guc_ct_fast_path(ct);
38}
39
40/* Basic CT send / receives */
41int xe_guc_ct_send(struct xe_guc_ct *ct, const u32 *action, u32 len,
42		   u32 g2h_len, u32 num_g2h);
43int xe_guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len,
44			  u32 g2h_len, u32 num_g2h);
45int xe_guc_ct_send_recv(struct xe_guc_ct *ct, const u32 *action, u32 len,
46			u32 *response_buffer);
47static inline int
48xe_guc_ct_send_block(struct xe_guc_ct *ct, const u32 *action, u32 len)
49{
50	return xe_guc_ct_send_recv(ct, action, len, NULL);
51}
52
53/* This is only version of the send CT you can call from a G2H handler */
54int xe_guc_ct_send_g2h_handler(struct xe_guc_ct *ct, const u32 *action,
55			       u32 len);
56
57/* Can't fail because a GT reset is in progress */
58int xe_guc_ct_send_recv_no_fail(struct xe_guc_ct *ct, const u32 *action,
59				u32 len, u32 *response_buffer);
60static inline int
61xe_guc_ct_send_block_no_fail(struct xe_guc_ct *ct, const u32 *action, u32 len)
62{
63	return xe_guc_ct_send_recv_no_fail(ct, action, len, NULL);
64}
65
66long xe_guc_ct_queue_proc_time_jiffies(struct xe_guc_ct *ct);
67
68#endif