1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2*4882a593Smuzhiyun /* Copyright 2017 IBM Corp. */ 3*4882a593Smuzhiyun #ifndef _UAPI_MISC_OCXL_H 4*4882a593Smuzhiyun #define _UAPI_MISC_OCXL_H 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #include <linux/types.h> 7*4882a593Smuzhiyun #include <linux/ioctl.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun enum ocxl_event_type { 10*4882a593Smuzhiyun OCXL_AFU_EVENT_XSL_FAULT_ERROR = 0, 11*4882a593Smuzhiyun }; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define OCXL_KERNEL_EVENT_FLAG_LAST 0x0001 /* This is the last event pending */ 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun struct ocxl_kernel_event_header { 16*4882a593Smuzhiyun __u16 type; 17*4882a593Smuzhiyun __u16 flags; 18*4882a593Smuzhiyun __u32 reserved; 19*4882a593Smuzhiyun }; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct ocxl_kernel_event_xsl_fault_error { 22*4882a593Smuzhiyun __u64 addr; 23*4882a593Smuzhiyun __u64 dsisr; 24*4882a593Smuzhiyun __u64 count; 25*4882a593Smuzhiyun __u64 reserved; 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun struct ocxl_ioctl_attach { 29*4882a593Smuzhiyun __u64 amr; 30*4882a593Smuzhiyun __u64 reserved1; 31*4882a593Smuzhiyun __u64 reserved2; 32*4882a593Smuzhiyun __u64 reserved3; 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun struct ocxl_ioctl_metadata { 36*4882a593Smuzhiyun __u16 version; /* struct version, always backwards compatible */ 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* Version 0 fields */ 39*4882a593Smuzhiyun __u8 afu_version_major; 40*4882a593Smuzhiyun __u8 afu_version_minor; 41*4882a593Smuzhiyun __u32 pasid; /* PASID assigned to the current context */ 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun __u64 pp_mmio_size; /* Per PASID MMIO size */ 44*4882a593Smuzhiyun __u64 global_mmio_size; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* End version 0 fields */ 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun __u64 reserved[13]; /* Total of 16*u64 */ 49*4882a593Smuzhiyun }; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun struct ocxl_ioctl_p9_wait { 52*4882a593Smuzhiyun __u16 thread_id; /* The thread ID required to wake this thread */ 53*4882a593Smuzhiyun __u16 reserved1; 54*4882a593Smuzhiyun __u32 reserved2; 55*4882a593Smuzhiyun __u64 reserved3[3]; 56*4882a593Smuzhiyun }; 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun #define OCXL_IOCTL_FEATURES_FLAGS0_P9_WAIT 0x01 59*4882a593Smuzhiyun struct ocxl_ioctl_features { 60*4882a593Smuzhiyun __u64 flags[4]; 61*4882a593Smuzhiyun }; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun struct ocxl_ioctl_irq_fd { 64*4882a593Smuzhiyun __u64 irq_offset; 65*4882a593Smuzhiyun __s32 eventfd; 66*4882a593Smuzhiyun __u32 reserved; 67*4882a593Smuzhiyun }; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun /* ioctl numbers */ 70*4882a593Smuzhiyun #define OCXL_MAGIC 0xCA 71*4882a593Smuzhiyun /* AFU devices */ 72*4882a593Smuzhiyun #define OCXL_IOCTL_ATTACH _IOW(OCXL_MAGIC, 0x10, struct ocxl_ioctl_attach) 73*4882a593Smuzhiyun #define OCXL_IOCTL_IRQ_ALLOC _IOR(OCXL_MAGIC, 0x11, __u64) 74*4882a593Smuzhiyun #define OCXL_IOCTL_IRQ_FREE _IOW(OCXL_MAGIC, 0x12, __u64) 75*4882a593Smuzhiyun #define OCXL_IOCTL_IRQ_SET_FD _IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd) 76*4882a593Smuzhiyun #define OCXL_IOCTL_GET_METADATA _IOR(OCXL_MAGIC, 0x14, struct ocxl_ioctl_metadata) 77*4882a593Smuzhiyun #define OCXL_IOCTL_ENABLE_P9_WAIT _IOR(OCXL_MAGIC, 0x15, struct ocxl_ioctl_p9_wait) 78*4882a593Smuzhiyun #define OCXL_IOCTL_GET_FEATURES _IOR(OCXL_MAGIC, 0x16, struct ocxl_ioctl_features) 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun #endif /* _UAPI_MISC_OCXL_H */ 81