From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- include/uapi/misc/fastrpc.h | 143 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 include/uapi/misc/fastrpc.h (limited to 'include/uapi/misc/fastrpc.h') diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h new file mode 100644 index 000000000..c6e2925f4 --- /dev/null +++ b/include/uapi/misc/fastrpc.h @@ -0,0 +1,143 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ + +#ifndef __QCOM_FASTRPC_H__ +#define __QCOM_FASTRPC_H__ + +#include + +#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 unused; /* deprecated, ignored by the kernel */ + __u32 attribute_id; + __u32 capability; /* dsp capability */ + __u32 reserved[4]; +}; + +#endif /* __QCOM_FASTRPC_H__ */ -- cgit v1.3.1