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fastrpc.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __QCOM_FASTRPC_H__ #define __QCOM_FASTRPC_H__ #include <linux/types.h> #define FASTRPC_IOCTL_ALLOC_DMA_BUFF _IOWR('R', 1, struct fastrpc_alloc_dma_buf) #define FASTRPC_IOCTL_FREE_DMA_BUFF _IOWR('R', 2, __u32) #define FASTRPC_IOCTL_INVOKE _IOWR('R', 3, struct fastrpc_invoke) #define FASTRPC_IOCTL_INIT_ATTACH _IO('R', 4) #define FASTRPC_IOCTL_INIT_CREATE _IOWR('R', 5, struct fastrpc_init_create) #define FASTRPC_IOCTL_MMAP _IOWR('R', 6, struct fastrpc_req_mmap) #define FASTRPC_IOCTL_MUNMAP _IOWR('R', 7, struct fastrpc_req_munmap) #define FASTRPC_IOCTL_INIT_ATTACH_SNS _IO('R', 8) #define FASTRPC_IOCTL_INIT_CREATE_STATIC _IOWR('R', 9, struct fastrpc_init_create_static) #define FASTRPC_IOCTL_MEM_MAP _IOWR('R', 10, struct fastrpc_mem_map) #define FASTRPC_IOCTL_MEM_UNMAP _IOWR('R', 11, struct fastrpc_mem_unmap) #define FASTRPC_IOCTL_GET_DSP_INFO _IOWR('R', 13, struct fastrpc_ioctl_capability) /** * enum fastrpc_map_flags - control flags for mapping memory on DSP user process * @FASTRPC_MAP_STATIC: Map memory pages with RW- permission and CACHE WRITEBACK. * The driver is responsible for cache maintenance when passed * the buffer to FastRPC calls. Same virtual address will be * assigned for subsequent FastRPC calls. * @FASTRPC_MAP_RESERVED: Reserved * @FASTRPC_MAP_FD: Map memory pages with RW- permission and CACHE WRITEBACK. * Mapping tagged with a file descriptor. User is responsible for * CPU and DSP cache maintenance for the buffer. Get virtual address * of buffer on DSP using HAP_mmap_get() and HAP_mmap_put() APIs. * @FASTRPC_MAP_FD_DELAYED: Mapping delayed until user call HAP_mmap() and HAP_munmap() * functions on DSP. It is useful to map a buffer with cache modes * other than default modes. User is responsible for CPU and DSP * cache maintenance for the buffer. * @FASTRPC_MAP_FD_NOMAP: This flag is used to skip CPU mapping, * otherwise behaves similar to FASTRPC_MAP_FD_DELAYED flag. * @FASTRPC_MAP_MAX: max count for flags * */ enum fastrpc_map_flags { FASTRPC_MAP_STATIC = 0, FASTRPC_MAP_RESERVED, FASTRPC_MAP_FD = 2, FASTRPC_MAP_FD_DELAYED, FASTRPC_MAP_FD_NOMAP = 16, FASTRPC_MAP_MAX, }; enum fastrpc_proc_attr { /* Macro for Debug attr */ FASTRPC_MODE_DEBUG = (1 << 0), /* Macro for Ptrace */ FASTRPC_MODE_PTRACE = (1 << 1), /* Macro for CRC Check */ FASTRPC_MODE_CRC = (1 << 2), /* Macro for Unsigned PD */ FASTRPC_MODE_UNSIGNED_MODULE = (1 << 3), /* Macro for Adaptive QoS */ FASTRPC_MODE_ADAPTIVE_QOS = (1 << 4), /* Macro for System Process */ FASTRPC_MODE_SYSTEM_PROCESS = (1 << 5), /* Macro for Prvileged Process */ FASTRPC_MODE_PRIVILEGED = (1 << 6), }; /* Fastrpc attribute for memory protection of buffers */ #define FASTRPC_ATTR_SECUREMAP (1) struct fastrpc_invoke_args { __u64 ptr; __u64 length; __s32 fd; __u32 attr; }; struct fastrpc_invoke { __u32 handle; __u32 sc; __u64 args; }; struct fastrpc_init_create { __u32 filelen; /* elf file length */ __s32 filefd; /* fd for the file */ __u32 attrs; __u32 siglen; __u64 file; /* pointer to elf file */ }; struct fastrpc_init_create_static { __u32 namelen; /* length of pd process name */ __u32 memlen; __u64 name; /* pd process name */ }; struct fastrpc_alloc_dma_buf { __s32 fd; /* fd */ __u32 flags; /* flags to map with */ __u64 size; /* size */ }; struct fastrpc_req_mmap { __s32 fd; __u32 flags; /* flags for dsp to map with */ __u64 vaddrin; /* optional virtual address */ __u64 size; /* size */ __u64 vaddrout; /* dsp virtual address */ }; struct fastrpc_mem_map { __s32 version; __s32 fd; /* fd */ __s32 offset; /* buffer offset */ __u32 flags; /* flags defined in enum fastrpc_map_flags */ __u64 vaddrin; /* buffer virtual address */ __u64 length; /* buffer length */ __u64 vaddrout; /* [out] remote virtual address */ __s32 attrs; /* buffer attributes used for SMMU mapping */ __s32 reserved[4]; }; struct fastrpc_req_munmap { __u64 vaddrout; /* address to unmap */ __u64 size; /* size */ }; struct fastrpc_mem_unmap { __s32 vesion; __s32 fd; /* fd */ __u64 vaddr; /* remote process (dsp) virtual address */ __u64 length; /* buffer size */ __s32 reserved[5]; }; struct fastrpc_ioctl_capability { __u32 domain; __u32 attribute_id; __u32 capability; /* dsp capability */ __u32 reserved[4]; }; #endif /* __QCOM_FASTRPC_H__ */