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