Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2023, ARM Limited and Contributors. All rights reserved. |
| 3 | * SPDX-License-Identifier: BSD-3-Clause |
| 4 | */ |
| 5 | #ifndef EL3_SPMD_LOGICAL_SP_H |
| 6 | #define EL3_SPMD_LOGICAL_SP_H |
| 7 | |
| 8 | #include <common/bl_common.h> |
| 9 | #include <lib/cassert.h> |
| 10 | #include <services/ffa_svc.h> |
| 11 | |
| 12 | /******************************************************************************* |
| 13 | * Structure definition, typedefs & constants for the SPMD Logical Partitions. |
| 14 | ******************************************************************************/ |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 15 | typedef struct spmd_spm_core_context spmd_spm_core_context_t; |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 16 | |
| 17 | /* Prototype for SPMD logical partition initializing function. */ |
| 18 | typedef int32_t (*ffa_spmd_lp_init_t)(void); |
| 19 | |
| 20 | /* SPMD Logical Partition Descriptor. */ |
| 21 | struct spmd_lp_desc { |
| 22 | ffa_spmd_lp_init_t init; |
| 23 | uint16_t sp_id; |
| 24 | uint32_t properties; |
| 25 | uint32_t uuid[4]; /* Little Endian. */ |
| 26 | const char *debug_name; |
| 27 | }; |
| 28 | |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 29 | struct ffa_value { |
| 30 | uint64_t func; |
| 31 | uint64_t arg1; |
| 32 | uint64_t arg2; |
| 33 | uint64_t arg3; |
| 34 | uint64_t arg4; |
| 35 | uint64_t arg5; |
| 36 | uint64_t arg6; |
| 37 | uint64_t arg7; |
| 38 | }; |
| 39 | |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 40 | /* Convenience macro to declare a SPMD logical partition descriptor. */ |
| 41 | #define DECLARE_SPMD_LOGICAL_PARTITION(_name, _init, _sp_id, _uuid, _properties) \ |
| 42 | static const struct spmd_lp_desc __partition_desc_ ## _name \ |
| 43 | __section(".spmd_lp_descs") __used = { \ |
| 44 | .debug_name = #_name, \ |
| 45 | .init = (_init), \ |
| 46 | .sp_id = (_sp_id), \ |
| 47 | .uuid = _uuid, \ |
| 48 | .properties = (_properties), \ |
| 49 | } |
| 50 | |
| 51 | IMPORT_SYM(uintptr_t, __SPMD_LP_DESCS_START__, SPMD_LP_DESCS_START); |
| 52 | IMPORT_SYM(uintptr_t, __SPMD_LP_DESCS_END__, SPMD_LP_DESCS_END); |
| 53 | |
| 54 | #define SPMD_LP_DESCS_COUNT ((SPMD_LP_DESCS_END - SPMD_LP_DESCS_START) \ |
| 55 | / sizeof(struct spmd_lp_desc)) |
| 56 | CASSERT(sizeof(struct spmd_lp_desc) == 40, assert_spmd_lp_desc_size_mismatch); |
| 57 | |
| 58 | /* |
| 59 | * Reserve 63 IDs for SPMD Logical Partitions. Currently, 0xFFC0 to 0xFFFE |
| 60 | * is reserved. |
| 61 | */ |
| 62 | #define SPMD_LP_ID_END (SPMD_DIRECT_MSG_ENDPOINT_ID - 1) |
| 63 | #define SPMD_LP_ID_START (SPMD_LP_ID_END - 62) |
| 64 | |
| 65 | static inline bool is_spmd_lp_id(unsigned int id) |
| 66 | { |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 67 | #if ENABLE_SPMD_LP |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 68 | return (id >= SPMD_LP_ID_START && id <= SPMD_LP_ID_END); |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 69 | #else |
| 70 | return false; |
| 71 | #endif |
| 72 | } |
| 73 | |
| 74 | static inline bool is_ffa_error(struct ffa_value *retval) |
| 75 | { |
| 76 | return retval->func == FFA_ERROR; |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 77 | } |
| 78 | |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 79 | static inline bool is_ffa_direct_msg_resp(struct ffa_value *retval) |
| 80 | { |
| 81 | return (retval->func == FFA_MSG_SEND_DIRECT_RESP_SMC32) || |
| 82 | (retval->func == FFA_MSG_SEND_DIRECT_RESP_SMC64); |
| 83 | } |
| 84 | |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 85 | void spmd_logical_sp_set_spmc_initialized(void); |
| 86 | void spmc_logical_sp_set_spmc_failure(void); |
| 87 | |
| 88 | int32_t spmd_logical_sp_init(void); |
Raghu Krishnamurthy | 6a30514 | 2023-03-03 06:41:29 -0800 | [diff] [blame] | 89 | bool is_spmd_logical_sp_dir_req_in_progress( |
| 90 | spmd_spm_core_context_t *ctx); |
| 91 | |
| 92 | bool spmd_el3_ffa_msg_direct_req(uint64_t x1, |
| 93 | uint64_t x2, |
| 94 | uint64_t x3, |
| 95 | uint64_t x4, |
| 96 | void *handle, |
| 97 | struct ffa_value *retval); |
Raghu Krishnamurthy | 7f046c1 | 2023-02-25 13:26:10 -0800 | [diff] [blame] | 98 | |
| 99 | #endif /* EL3_SPMD_LOGICAL_SP_H */ |