Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2022 Intel Corporation
4 */
5
6#ifndef _XE_PCODE_H_
7#define _XE_PCODE_H_
8
9#include <linux/types.h>
10
11struct drm_device;
12struct xe_device;
13struct xe_tile;
14
15void xe_pcode_init(struct xe_tile *tile);
16int xe_pcode_probe_early(struct xe_device *xe);
17int xe_pcode_ready(struct xe_device *xe, bool locked);
18int xe_pcode_init_min_freq_table(struct xe_tile *tile, u32 min_gt_freq,
19 u32 max_gt_freq);
20int xe_pcode_read(struct xe_tile *tile, u32 mbox, u32 *val, u32 *val1);
21int xe_pcode_write_timeout(struct xe_tile *tile, u32 mbox, u32 val,
22 int timeout_ms);
23int xe_pcode_write64_timeout(struct xe_tile *tile, u32 mbox, u32 data0,
24 u32 data1, int timeout);
25
26#define xe_pcode_write(tile, mbox, val) \
27 xe_pcode_write_timeout(tile, mbox, val, 1)
28
29int xe_pcode_request(struct xe_tile *tile, u32 mbox, u32 request,
30 u32 reply_mask, u32 reply, int timeout_ms);
31
32#define PCODE_MBOX(mbcmd, param1, param2)\
33 (FIELD_PREP(PCODE_MB_COMMAND, mbcmd)\
34 | FIELD_PREP(PCODE_MB_PARAM1, param1)\
35 | FIELD_PREP(PCODE_MB_PARAM2, param2))
36
37/* Helpers with drm device */
38int intel_pcode_read(struct drm_device *drm, u32 mbox, u32 *val, u32 *val1);
39int intel_pcode_write_timeout(struct drm_device *drm, u32 mbox, u32 val, int timeout_ms);
40#define intel_pcode_write(drm, mbox, val) \
41 intel_pcode_write_timeout((drm), (mbox), (val), 1)
42int intel_pcode_request(struct drm_device *drm, u32 mbox, u32 request,
43 u32 reply_mask, u32 reply, int timeout_base_ms);
44
45#endif