1 /* 2 * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __TSP_PRIVATE_H__ 32 #define __TSP_PRIVATE_H__ 33 34 /* Definitions to help the assembler access the SMC/ERET args structure */ 35 #define TSP_ARGS_SIZE 0x40 36 #define TSP_ARG0 0x0 37 #define TSP_ARG1 0x8 38 #define TSP_ARG2 0x10 39 #define TSP_ARG3 0x18 40 #define TSP_ARG4 0x20 41 #define TSP_ARG5 0x28 42 #define TSP_ARG6 0x30 43 #define TSP_ARG7 0x38 44 #define TSP_ARGS_END 0x40 45 46 47 #ifndef __ASSEMBLY__ 48 49 #include <cassert.h> 50 #include <platform_def.h> /* For CACHE_WRITEBACK_GRANULE */ 51 #include <spinlock.h> 52 #include <stdint.h> 53 #include <tsp.h> 54 55 56 typedef struct work_statistics { 57 uint32_t fiq_count; /* Number of FIQs on this cpu */ 58 uint32_t sync_fiq_count; /* Number of sync. fiqs on this cpu */ 59 uint32_t sync_fiq_ret_count; /* Number of fiq returns on this cpu */ 60 /* Number of non s-el1 interrupts on this cpu which preempted TSP */ 61 uint32_t preempt_intr_count; 62 uint32_t smc_count; /* Number of returns on this cpu */ 63 uint32_t eret_count; /* Number of entries on this cpu */ 64 uint32_t cpu_on_count; /* Number of cpu on requests */ 65 uint32_t cpu_off_count; /* Number of cpu off requests */ 66 uint32_t cpu_suspend_count; /* Number of cpu suspend requests */ 67 uint32_t cpu_resume_count; /* Number of cpu resume requests */ 68 } __aligned(CACHE_WRITEBACK_GRANULE) work_statistics_t; 69 70 typedef struct tsp_args { 71 uint64_t _regs[TSP_ARGS_END >> 3]; 72 } __aligned(CACHE_WRITEBACK_GRANULE) tsp_args_t; 73 74 /* Macros to access members of the above structure using their offsets */ 75 #define read_sp_arg(args, offset) ((args)->_regs[offset >> 3]) 76 #define write_sp_arg(args, offset, val) (((args)->_regs[offset >> 3]) \ 77 = val) 78 /* 79 * Ensure that the assembler's view of the size of the tsp_args is the 80 * same as the compilers 81 */ 82 CASSERT(TSP_ARGS_SIZE == sizeof(tsp_args_t), assert_sp_args_size_mismatch); 83 84 void tsp_get_magic(uint64_t args[4]); 85 86 tsp_args_t *tsp_cpu_resume_main(uint64_t arg0, 87 uint64_t arg1, 88 uint64_t arg2, 89 uint64_t arg3, 90 uint64_t arg4, 91 uint64_t arg5, 92 uint64_t arg6, 93 uint64_t arg7); 94 tsp_args_t *tsp_cpu_suspend_main(uint64_t arg0, 95 uint64_t arg1, 96 uint64_t arg2, 97 uint64_t arg3, 98 uint64_t arg4, 99 uint64_t arg5, 100 uint64_t arg6, 101 uint64_t arg7); 102 tsp_args_t *tsp_cpu_on_main(void); 103 tsp_args_t *tsp_cpu_off_main(uint64_t arg0, 104 uint64_t arg1, 105 uint64_t arg2, 106 uint64_t arg3, 107 uint64_t arg4, 108 uint64_t arg5, 109 uint64_t arg6, 110 uint64_t arg7); 111 112 /* Generic Timer functions */ 113 void tsp_generic_timer_start(void); 114 void tsp_generic_timer_handler(void); 115 void tsp_generic_timer_stop(void); 116 void tsp_generic_timer_save(void); 117 void tsp_generic_timer_restore(void); 118 119 /* FIQ management functions */ 120 void tsp_update_sync_fiq_stats(uint32_t type, uint64_t elr_el3); 121 122 123 /* Data structure to keep track of TSP statistics */ 124 extern spinlock_t console_lock; 125 extern work_statistics_t tsp_stats[PLATFORM_CORE_COUNT]; 126 127 /* Vector table of jumps */ 128 extern tsp_vectors_t tsp_vector_table; 129 130 131 #endif /* __ASSEMBLY__ */ 132 133 #endif /* __TSP_PRIVATE_H__ */ 134 135