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1 /*
2  * Copyright (c) 2013-2018, Arm Limited and Contributors. All rights reserved.
3  * Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved.
4  *
5  * SPDX-License-Identifier: BSD-3-Clause
6  */
7 
8 /*
9  * Contains definitions of commonly used macros and data types needed
10  * for PU Power Management. This file should be common for all PU's.
11  */
12 
13 #ifndef PM_COMMON_H
14 #define PM_COMMON_H
15 
16 #include <stdint.h>
17 #include <plat_pm_common.h>
18 
19 #if IPI_CRC_CHECK
20 #define PAYLOAD_ARG_CNT         8U
21 #define IPI_W0_TO_W6_SIZE       28U
22 #define PAYLOAD_CRC_POS         7U
23 #define CRC_INIT_VALUE          0x4F4EU
24 #define CRC_ORDER               16U
25 #define CRC_POLYNOM             0x8005U
26 #else
27 #define PAYLOAD_ARG_CNT		7U
28 #endif
29 #define RET_PAYLOAD_ARG_CNT	6U
30 #define PAYLOAD_ARG_SIZE	4U	/* size in bytes */
31 
32 #define TZ_VERSION_MAJOR	1
33 #define TZ_VERSION_MINOR	0
34 #define TZ_VERSION		((TZ_VERSION_MAJOR << 16) | \
35 				 TZ_VERSION_MINOR)
36 
37 /**
38  * struct pm_ipi - struct for capturing IPI-channel specific info.
39  * @local_ipi_id: Local IPI agent ID.
40  * @remote_ipi_id: Remote IPI Agent ID.
41  * @buffer_base: base address for payload buffer.
42  *
43  */
44 struct pm_ipi {
45 	const uint32_t local_ipi_id;
46 	const uint32_t remote_ipi_id;
47 	const uintptr_t buffer_base;
48 };
49 
50 /**
51  * struct pm_proc - struct for capturing processor related info.
52  * @node_id: node-ID of the processor.
53  * @pwrdn_mask: cpu-specific mask to be used for power control register.
54  * @ipi: pointer to IPI channel structure.
55  *       (in APU all processors share one IPI channel)
56  *
57  */
58 struct pm_proc {
59 	const uint32_t node_id;
60 	const uint32_t pwrdn_mask;
61 	const struct pm_ipi *ipi;
62 };
63 
64 const struct pm_proc *pm_get_proc(uint32_t cpuid);
65 
66 #endif /* PM_COMMON_H */
67