144 lines · c
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 process23 * @FASTRPC_MAP_STATIC: Map memory pages with RW- permission and CACHE WRITEBACK.24 * The driver is responsible for cache maintenance when passed25 * the buffer to FastRPC calls. Same virtual address will be26 * assigned for subsequent FastRPC calls.27 * @FASTRPC_MAP_RESERVED: Reserved28 * @FASTRPC_MAP_FD: Map memory pages with RW- permission and CACHE WRITEBACK.29 * Mapping tagged with a file descriptor. User is responsible for30 * CPU and DSP cache maintenance for the buffer. Get virtual address31 * 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 modes34 * other than default modes. User is responsible for CPU and DSP35 * 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 flags39 *40 */41enum 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 50enum 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 70struct fastrpc_invoke_args {71 __u64 ptr;72 __u64 length;73 __s32 fd;74 __u32 attr;75};76 77struct fastrpc_invoke {78 __u32 handle;79 __u32 sc;80 __u64 args;81};82 83struct 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 91struct fastrpc_init_create_static {92 __u32 namelen; /* length of pd process name */93 __u32 memlen;94 __u64 name; /* pd process name */95};96 97struct fastrpc_alloc_dma_buf {98 __s32 fd; /* fd */99 __u32 flags; /* flags to map with */100 __u64 size; /* size */101};102 103struct 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 111struct 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 123struct fastrpc_req_munmap {124 __u64 vaddrout; /* address to unmap */125 __u64 size; /* size */126};127 128struct 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 136struct 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