1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 3 #ifndef __QCOM_FASTRPC_H__ 4 #define __QCOM_FASTRPC_H__ 5 6 #include <linux/types.h> 7 8 #define FASTRPC_IOCTL_ALLOC_DMA_BUFF _IOWR('R', 1, struct fastrpc_alloc_dma_buf) 9 #define FASTRPC_IOCTL_FREE_DMA_BUFF _IOWR('R', 2, __u32) 10 #define FASTRPC_IOCTL_INVOKE _IOWR('R', 3, struct fastrpc_invoke) 11 /* This ioctl is only supported with secure device nodes */ 12 #define FASTRPC_IOCTL_INIT_ATTACH _IO('R', 4) 13 #define FASTRPC_IOCTL_INIT_CREATE _IOWR('R', 5, struct fastrpc_init_create) 14 #define FASTRPC_IOCTL_MMAP _IOWR('R', 6, struct fastrpc_req_mmap) 15 #define FASTRPC_IOCTL_MUNMAP _IOWR('R', 7, struct fastrpc_req_munmap) 16 /* This ioctl is only supported with secure device nodes */ 17 #define FASTRPC_IOCTL_INIT_ATTACH_SNS _IO('R', 8) 18 /* This ioctl is only supported with secure device nodes */ 19 #define FASTRPC_IOCTL_INIT_CREATE_STATIC _IOWR('R', 9, struct fastrpc_init_create_static) 20 #define FASTRPC_IOCTL_MEM_MAP _IOWR('R', 10, struct fastrpc_mem_map) 21 #define FASTRPC_IOCTL_MEM_UNMAP _IOWR('R', 11, struct fastrpc_mem_unmap) 22 #define FASTRPC_IOCTL_GET_DSP_INFO _IOWR('R', 13, struct fastrpc_ioctl_capability) 23 24 /** 25 * enum fastrpc_map_flags - control flags for mapping memory on DSP user process 26 * @FASTRPC_MAP_STATIC: Map memory pages with RW- permission and CACHE WRITEBACK. 27 * The driver is responsible for cache maintenance when passed 28 * the buffer to FastRPC calls. Same virtual address will be 29 * assigned for subsequent FastRPC calls. 30 * @FASTRPC_MAP_RESERVED: Reserved 31 * @FASTRPC_MAP_FD: Map memory pages with RW- permission and CACHE WRITEBACK. 32 * Mapping tagged with a file descriptor. User is responsible for 33 * CPU and DSP cache maintenance for the buffer. Get virtual address 34 * of buffer on DSP using HAP_mmap_get() and HAP_mmap_put() APIs. 35 * @FASTRPC_MAP_FD_DELAYED: Mapping delayed until user call HAP_mmap() and HAP_munmap() 36 * functions on DSP. It is useful to map a buffer with cache modes 37 * other than default modes. User is responsible for CPU and DSP 38 * cache maintenance for the buffer. 39 * @FASTRPC_MAP_FD_NOMAP: This flag is used to skip CPU mapping, 40 * otherwise behaves similar to FASTRPC_MAP_FD_DELAYED flag. 41 * @FASTRPC_MAP_MAX: max count for flags 42 * 43 */ 44 enum fastrpc_map_flags { 45 FASTRPC_MAP_STATIC = 0, 46 FASTRPC_MAP_RESERVED, 47 FASTRPC_MAP_FD = 2, 48 FASTRPC_MAP_FD_DELAYED, 49 FASTRPC_MAP_FD_NOMAP = 16, 50 FASTRPC_MAP_MAX, 51 }; 52 53 enum fastrpc_proc_attr { 54 /* Macro for Debug attr */ 55 FASTRPC_MODE_DEBUG = (1 << 0), 56 /* Macro for Ptrace */ 57 FASTRPC_MODE_PTRACE = (1 << 1), 58 /* Macro for CRC Check */ 59 FASTRPC_MODE_CRC = (1 << 2), 60 /* Macro for Unsigned PD */ 61 FASTRPC_MODE_UNSIGNED_MODULE = (1 << 3), 62 /* Macro for Adaptive QoS */ 63 FASTRPC_MODE_ADAPTIVE_QOS = (1 << 4), 64 /* Macro for System Process */ 65 FASTRPC_MODE_SYSTEM_PROCESS = (1 << 5), 66 /* Macro for Prvileged Process */ 67 FASTRPC_MODE_PRIVILEGED = (1 << 6), 68 }; 69 70 /* Fastrpc attribute for memory protection of buffers */ 71 #define FASTRPC_ATTR_SECUREMAP (1) 72 73 struct fastrpc_invoke_args { 74 __u64 ptr; 75 __u64 length; 76 __s32 fd; 77 __u32 attr; 78 }; 79 80 struct fastrpc_invoke { 81 __u32 handle; 82 __u32 sc; 83 __u64 args; 84 }; 85 86 struct fastrpc_init_create { 87 __u32 filelen; /* elf file length */ 88 __s32 filefd; /* fd for the file */ 89 __u32 attrs; 90 __u32 siglen; 91 __u64 file; /* pointer to elf file */ 92 }; 93 94 struct fastrpc_init_create_static { 95 __u32 namelen; /* length of pd process name */ 96 __u32 memlen; 97 __u64 name; /* pd process name */ 98 }; 99 100 struct fastrpc_alloc_dma_buf { 101 __s32 fd; /* fd */ 102 __u32 flags; /* flags to map with */ 103 __u64 size; /* size */ 104 }; 105 106 struct fastrpc_req_mmap { 107 __s32 fd; 108 __u32 flags; /* flags for dsp to map with */ 109 __u64 vaddrin; /* optional virtual address */ 110 __u64 size; /* size */ 111 __u64 vaddrout; /* dsp virtual address */ 112 }; 113 114 struct fastrpc_mem_map { 115 __s32 version; 116 __s32 fd; /* fd */ 117 __s32 offset; /* buffer offset */ 118 __u32 flags; /* flags defined in enum fastrpc_map_flags */ 119 __u64 vaddrin; /* buffer virtual address */ 120 __u64 length; /* buffer length */ 121 __u64 vaddrout; /* [out] remote virtual address */ 122 __s32 attrs; /* buffer attributes used for SMMU mapping */ 123 __s32 reserved[4]; 124 }; 125 126 struct fastrpc_req_munmap { 127 __u64 vaddrout; /* address to unmap */ 128 __u64 size; /* size */ 129 }; 130 131 struct fastrpc_mem_unmap { 132 __s32 vesion; 133 __s32 fd; /* fd */ 134 __u64 vaddr; /* remote process (dsp) virtual address */ 135 __u64 length; /* buffer size */ 136 __s32 reserved[5]; 137 }; 138 139 struct fastrpc_ioctl_capability { 140 __u32 domain; 141 __u32 attribute_id; 142 __u32 capability; /* dsp capability */ 143 __u32 reserved[4]; 144 }; 145 146 #endif /* __QCOM_FASTRPC_H__ */ 147