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112 lines
2.5 KiB
112 lines
2.5 KiB
/* |
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* Copyright 2014 IBM Corp. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_MISC_CXL_H |
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#define _UAPI_MISC_CXL_H |
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#include <linux/types.h> |
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#include <linux/ioctl.h> |
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struct cxl_ioctl_start_work { |
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__u64 flags; |
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__u64 work_element_descriptor; |
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__u64 amr; |
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__s16 num_interrupts; |
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__s16 reserved1; |
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__s32 reserved2; |
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__u64 reserved3; |
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__u64 reserved4; |
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__u64 reserved5; |
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__u64 reserved6; |
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}; |
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#define CXL_START_WORK_AMR 0x0000000000000001ULL |
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#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL |
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#define CXL_START_WORK_ERR_FF 0x0000000000000004ULL |
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#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |\ |
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CXL_START_WORK_NUM_IRQS |\ |
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CXL_START_WORK_ERR_FF) |
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/* Possible modes that an afu can be in */ |
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#define CXL_MODE_DEDICATED 0x1 |
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#define CXL_MODE_DIRECTED 0x2 |
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/* possible flags for the cxl_afu_id flags field */ |
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#define CXL_AFUID_FLAG_SLAVE 0x1 /* In directed-mode afu is in slave mode */ |
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struct cxl_afu_id { |
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__u64 flags; /* One of CXL_AFUID_FLAG_X */ |
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__u32 card_id; |
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__u32 afu_offset; |
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__u32 afu_mode; /* one of the CXL_MODE_X */ |
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__u32 reserved1; |
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__u64 reserved2; |
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__u64 reserved3; |
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__u64 reserved4; |
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__u64 reserved5; |
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__u64 reserved6; |
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}; |
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/* ioctl numbers */ |
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#define CXL_MAGIC 0xCA |
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#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work) |
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#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32) |
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#define CXL_IOCTL_GET_AFU_ID _IOR(CXL_MAGIC, 0x02, struct cxl_afu_id) |
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#define CXL_READ_MIN_SIZE 0x1000 /* 4K */ |
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/* Events from read() */ |
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enum cxl_event_type { |
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CXL_EVENT_RESERVED = 0, |
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CXL_EVENT_AFU_INTERRUPT = 1, |
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CXL_EVENT_DATA_STORAGE = 2, |
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CXL_EVENT_AFU_ERROR = 3, |
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}; |
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struct cxl_event_header { |
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__u16 type; |
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__u16 size; |
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__u16 process_element; |
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__u16 reserved1; |
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}; |
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struct cxl_event_afu_interrupt { |
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__u16 flags; |
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__u16 irq; /* Raised AFU interrupt number */ |
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__u32 reserved1; |
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}; |
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struct cxl_event_data_storage { |
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__u16 flags; |
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__u16 reserved1; |
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__u32 reserved2; |
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__u64 addr; |
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__u64 dsisr; |
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__u64 reserved3; |
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}; |
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struct cxl_event_afu_error { |
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__u16 flags; |
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__u16 reserved1; |
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__u32 reserved2; |
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__u64 error; |
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}; |
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struct cxl_event { |
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struct cxl_event_header header; |
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union { |
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struct cxl_event_afu_interrupt irq; |
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struct cxl_event_data_storage fault; |
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struct cxl_event_afu_error afu_error; |
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}; |
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}; |
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#endif /* _UAPI_MISC_CXL_H */
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