1 /* 2 * Copyright (c) 2013-2014, 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_H__ 32 #define __TSP_H__ 33 34 /* 35 * SMC function IDs that TSP uses to signal various forms of completions 36 * to the secure payload dispatcher. 37 */ 38 #define TSP_ENTRY_DONE 0xf2000000 39 #define TSP_ON_DONE 0xf2000001 40 #define TSP_OFF_DONE 0xf2000002 41 #define TSP_SUSPEND_DONE 0xf2000003 42 #define TSP_RESUME_DONE 0xf2000004 43 #define TSP_PREEMPTED 0xf2000005 44 45 /* 46 * Function identifiers to handle FIQs through the synchronous handling model. 47 * If the TSP was previously interrupted then control has to be returned to 48 * the TSPD after handling the interrupt else execution can remain in the TSP. 49 */ 50 #define TSP_HANDLED_S_EL1_FIQ 0xf2000006 51 #define TSP_EL3_FIQ 0xf2000007 52 53 /* SMC function ID that TSP uses to request service from secure monitor */ 54 #define TSP_GET_ARGS 0xf2001000 55 56 /* 57 * Identifiers for various TSP services. Corresponding function IDs (whether 58 * fast or standard) are generated by macros defined below 59 */ 60 #define TSP_ADD 0x2000 61 #define TSP_SUB 0x2001 62 #define TSP_MUL 0x2002 63 #define TSP_DIV 0x2003 64 #define TSP_HANDLE_FIQ_AND_RETURN 0x2004 65 66 /* 67 * Generate function IDs for TSP services to be used in SMC calls, by 68 * appropriately setting bit 31 to differentiate standard and fast SMC calls 69 */ 70 #define TSP_STD_FID(fid) ((fid) | 0x72000000 | (0 << 31)) 71 #define TSP_FAST_FID(fid) ((fid) | 0x72000000 | (1 << 31)) 72 73 /* SMC function ID to request a previously preempted std smc */ 74 #define TSP_FID_RESUME TSP_STD_FID(0x3000) 75 76 /* 77 * Identify a TSP service from function ID filtering the last 16 bits from the 78 * SMC function ID 79 */ 80 #define TSP_BARE_FID(fid) ((fid) & 0xffff) 81 82 /* 83 * Total number of function IDs implemented for services offered to NS clients. 84 * The function IDs are defined above 85 */ 86 #define TSP_NUM_FID 0x4 87 88 /* TSP implementation version numbers */ 89 #define TSP_VERSION_MAJOR 0x0 /* Major version */ 90 #define TSP_VERSION_MINOR 0x1 /* Minor version */ 91 92 /* 93 * Standard Trusted OS Function IDs that fall under Trusted OS call range 94 * according to SMC calling convention 95 */ 96 #define TOS_CALL_COUNT 0xbf00ff00 /* Number of calls implemented */ 97 #define TOS_UID 0xbf00ff01 /* Implementation UID */ 98 /* 0xbf00ff02 is reserved */ 99 #define TOS_CALL_VERSION 0xbf00ff03 /* Trusted OS Call Version */ 100 101 102 #ifndef __ASSEMBLY__ 103 104 #include <stdint.h> 105 106 107 typedef uint32_t tsp_vector_isn_t; 108 109 typedef struct tsp_vectors { 110 tsp_vector_isn_t std_smc_entry; 111 tsp_vector_isn_t fast_smc_entry; 112 tsp_vector_isn_t cpu_on_entry; 113 tsp_vector_isn_t cpu_off_entry; 114 tsp_vector_isn_t cpu_resume_entry; 115 tsp_vector_isn_t cpu_suspend_entry; 116 tsp_vector_isn_t fiq_entry; 117 } tsp_vectors_t; 118 119 120 #endif /* __ASSEMBLY__ */ 121 122 #endif /* __TSP_H__ */ 123