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