mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
3.9 KiB
156 lines
3.9 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
|
/* |
|
* Copyright 2014 IBM Corp. |
|
* |
|
* This program is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU General Public License |
|
* as published by the Free Software Foundation; either version |
|
* 2 of the License, or (at your option) any later version. |
|
*/ |
|
|
|
#ifndef _UAPI_MISC_CXL_H |
|
#define _UAPI_MISC_CXL_H |
|
|
|
#include <linux/types.h> |
|
#include <linux/ioctl.h> |
|
|
|
|
|
struct cxl_ioctl_start_work { |
|
__u64 flags; |
|
__u64 work_element_descriptor; |
|
__u64 amr; |
|
__s16 num_interrupts; |
|
__u16 tid; |
|
__s32 reserved1; |
|
__u64 reserved2; |
|
__u64 reserved3; |
|
__u64 reserved4; |
|
__u64 reserved5; |
|
}; |
|
|
|
#define CXL_START_WORK_AMR 0x0000000000000001ULL |
|
#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL |
|
#define CXL_START_WORK_ERR_FF 0x0000000000000004ULL |
|
#define CXL_START_WORK_TID 0x0000000000000008ULL |
|
#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |\ |
|
CXL_START_WORK_NUM_IRQS |\ |
|
CXL_START_WORK_ERR_FF |\ |
|
CXL_START_WORK_TID) |
|
|
|
|
|
/* Possible modes that an afu can be in */ |
|
#define CXL_MODE_DEDICATED 0x1 |
|
#define CXL_MODE_DIRECTED 0x2 |
|
|
|
/* possible flags for the cxl_afu_id flags field */ |
|
#define CXL_AFUID_FLAG_SLAVE 0x1 /* In directed-mode afu is in slave mode */ |
|
|
|
struct cxl_afu_id { |
|
__u64 flags; /* One of CXL_AFUID_FLAG_X */ |
|
__u32 card_id; |
|
__u32 afu_offset; |
|
__u32 afu_mode; /* one of the CXL_MODE_X */ |
|
__u32 reserved1; |
|
__u64 reserved2; |
|
__u64 reserved3; |
|
__u64 reserved4; |
|
__u64 reserved5; |
|
__u64 reserved6; |
|
}; |
|
|
|
/* base adapter image header is included in the image */ |
|
#define CXL_AI_NEED_HEADER 0x0000000000000001ULL |
|
#define CXL_AI_ALL CXL_AI_NEED_HEADER |
|
|
|
#define CXL_AI_HEADER_SIZE 128 |
|
#define CXL_AI_BUFFER_SIZE 4096 |
|
#define CXL_AI_MAX_ENTRIES 256 |
|
#define CXL_AI_MAX_CHUNK_SIZE (CXL_AI_BUFFER_SIZE * CXL_AI_MAX_ENTRIES) |
|
|
|
struct cxl_adapter_image { |
|
__u64 flags; |
|
__u64 data; |
|
__u64 len_data; |
|
__u64 len_image; |
|
__u64 reserved1; |
|
__u64 reserved2; |
|
__u64 reserved3; |
|
__u64 reserved4; |
|
}; |
|
|
|
/* ioctl numbers */ |
|
#define CXL_MAGIC 0xCA |
|
/* AFU devices */ |
|
#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work) |
|
#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32) |
|
#define CXL_IOCTL_GET_AFU_ID _IOR(CXL_MAGIC, 0x02, struct cxl_afu_id) |
|
/* adapter devices */ |
|
#define CXL_IOCTL_DOWNLOAD_IMAGE _IOW(CXL_MAGIC, 0x0A, struct cxl_adapter_image) |
|
#define CXL_IOCTL_VALIDATE_IMAGE _IOW(CXL_MAGIC, 0x0B, struct cxl_adapter_image) |
|
|
|
#define CXL_READ_MIN_SIZE 0x1000 /* 4K */ |
|
|
|
/* Events from read() */ |
|
enum cxl_event_type { |
|
CXL_EVENT_RESERVED = 0, |
|
CXL_EVENT_AFU_INTERRUPT = 1, |
|
CXL_EVENT_DATA_STORAGE = 2, |
|
CXL_EVENT_AFU_ERROR = 3, |
|
CXL_EVENT_AFU_DRIVER = 4, |
|
}; |
|
|
|
struct cxl_event_header { |
|
__u16 type; |
|
__u16 size; |
|
__u16 process_element; |
|
__u16 reserved1; |
|
}; |
|
|
|
struct cxl_event_afu_interrupt { |
|
__u16 flags; |
|
__u16 irq; /* Raised AFU interrupt number */ |
|
__u32 reserved1; |
|
}; |
|
|
|
struct cxl_event_data_storage { |
|
__u16 flags; |
|
__u16 reserved1; |
|
__u32 reserved2; |
|
__u64 addr; |
|
__u64 dsisr; |
|
__u64 reserved3; |
|
}; |
|
|
|
struct cxl_event_afu_error { |
|
__u16 flags; |
|
__u16 reserved1; |
|
__u32 reserved2; |
|
__u64 error; |
|
}; |
|
|
|
struct cxl_event_afu_driver_reserved { |
|
/* |
|
* Defines the buffer passed to the cxl driver by the AFU driver. |
|
* |
|
* This is not ABI since the event header.size passed to the user for |
|
* existing events is set in the read call to sizeof(cxl_event_header) |
|
* + sizeof(whatever event is being dispatched) and the user is already |
|
* required to use a 4K buffer on the read call. |
|
* |
|
* Of course the contents will be ABI, but that's up the AFU driver. |
|
*/ |
|
__u32 data_size; |
|
__u8 data[]; |
|
}; |
|
|
|
struct cxl_event { |
|
struct cxl_event_header header; |
|
union { |
|
struct cxl_event_afu_interrupt irq; |
|
struct cxl_event_data_storage fault; |
|
struct cxl_event_afu_error afu_error; |
|
struct cxl_event_afu_driver_reserved afu_driver_event; |
|
}; |
|
}; |
|
|
|
#endif /* _UAPI_MISC_CXL_H */
|
|
|