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