cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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fastrpc.h (4187B)

      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 */
     40enum 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
     49enum 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
     69struct fastrpc_invoke_args {
     70	__u64 ptr;
     71	__u64 length;
     72	__s32 fd;
     73	__u32 attr;
     74};
     75
     76struct fastrpc_invoke {
     77	__u32 handle;
     78	__u32 sc;
     79	__u64 args;
     80};
     81
     82struct 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
     90struct fastrpc_alloc_dma_buf {
     91	__s32 fd;	/* fd */
     92	__u32 flags;	/* flags to map with */
     93	__u64 size;	/* size */
     94};
     95
     96struct 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
    104struct 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
    116struct fastrpc_req_munmap {
    117	__u64 vaddrout;	/* address to unmap */
    118	__u64 size;	/* size */
    119};
    120
    121struct 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
    129struct 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__ */