1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright(c) 2022, Intel Corporation. All rights reserved.
4 */
5
6#ifndef __INTEL_PXP_FW_INTERFACE_CMN_H__
7#define __INTEL_PXP_FW_INTERFACE_CMN_H__
8
9#include <linux/types.h>
10
11#define PXP_APIVER(x, y) (((x) & 0xFFFF) << 16 | ((y) & 0xFFFF))
12
13/*
14 * there are a lot of status codes for PXP, but we only define the cross-API
15 * common ones that we actually can handle in the kernel driver. Other failure
16 * codes should be printed to error msg for debug.
17 */
18enum pxp_status {
19 PXP_STATUS_SUCCESS = 0x0,
20 PXP_STATUS_ERROR_API_VERSION = 0x1002,
21 PXP_STATUS_NOT_READY = 0x100e,
22 PXP_STATUS_PLATFCONFIG_KF1_NOVERIF = 0x101a,
23 PXP_STATUS_PLATFCONFIG_KF1_BAD = 0x101f,
24 PXP_STATUS_OP_NOT_PERMITTED = 0x4013
25};
26
27/* Common PXP FW message header */
28struct pxp_cmd_header {
29 u32 api_version;
30 u32 command_id;
31 union {
32 u32 status; /* out */
33 u32 stream_id; /* in */
34#define PXP_CMDHDR_EXTDATA_SESSION_VALID GENMASK(0, 0)
35#define PXP_CMDHDR_EXTDATA_APP_TYPE GENMASK(1, 1)
36#define PXP_CMDHDR_EXTDATA_SESSION_ID GENMASK(17, 2)
37 };
38 /* Length of the message (excluding the header) */
39 u32 buffer_len;
40} __packed;
41
42#endif /* __INTEL_PXP_FW_INTERFACE_CMN_H__ */
43

source code of linux/drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h