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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#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_SET_OPTION _IOWR('R', 12, struct fastrpc_ioctl_set_option)#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)
/** * FASTRPC_POLL_MODE - Enable/disable poll mode for FastRPC invocations * * Poll mode is an optimization that allows the CPU to poll shared memory * for completion instead of waiting for an interrupt-based response. * This reduces latency for fast-completing operations. * * Restrictions: * - Only supported for USER_PD (User Protection Domain) * - Only applies to dynamic modules (handle > 20) * - Static modules always use interrupt-based completion * * Values: * - 0: Disable poll mode (use interrupt-based completion) * - 1: Enable poll mode (poll shared memory for completion) */#define FASTRPC_POLL_MODE (1)
/* Values for FASTRPC_POLL_MODE request */#define FASTRPC_POLL_MODE_DISABLE 0#define FASTRPC_POLL_MODE_ENABLE 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_set_option { __u32 request_id; /* Request type (e.g., FASTRPC_POLL_MODE) */ __u32 value; /* Request-specific value */ __s32 reserved[6];};
struct fastrpc_ioctl_capability { __u32 unused; /* deprecated, ignored by the kernel */ __u32 attribute_id; __u32 capability; /* dsp capability */ __u32 reserved[4];};
#endif /* __QCOM_FASTRPC_H__ */