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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPI_MISC_CXL_H
     20 #define _UAPI_MISC_CXL_H
     21 #include <linux/types.h>
     22 #include <linux/ioctl.h>
     23 struct cxl_ioctl_start_work {
     24   __u64 flags;
     25   __u64 work_element_descriptor;
     26   __u64 amr;
     27   __s16 num_interrupts;
     28   __s16 reserved1;
     29   __s32 reserved2;
     30   __u64 reserved3;
     31   __u64 reserved4;
     32   __u64 reserved5;
     33   __u64 reserved6;
     34 };
     35 #define CXL_START_WORK_AMR 0x0000000000000001ULL
     36 #define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL
     37 #define CXL_START_WORK_ERR_FF 0x0000000000000004ULL
     38 #define CXL_START_WORK_ALL (CXL_START_WORK_AMR | CXL_START_WORK_NUM_IRQS | CXL_START_WORK_ERR_FF)
     39 #define CXL_MODE_DEDICATED 0x1
     40 #define CXL_MODE_DIRECTED 0x2
     41 #define CXL_AFUID_FLAG_SLAVE 0x1
     42 struct cxl_afu_id {
     43   __u64 flags;
     44   __u32 card_id;
     45   __u32 afu_offset;
     46   __u32 afu_mode;
     47   __u32 reserved1;
     48   __u64 reserved2;
     49   __u64 reserved3;
     50   __u64 reserved4;
     51   __u64 reserved5;
     52   __u64 reserved6;
     53 };
     54 #define CXL_AI_NEED_HEADER 0x0000000000000001ULL
     55 #define CXL_AI_ALL CXL_AI_NEED_HEADER
     56 #define CXL_AI_HEADER_SIZE 128
     57 #define CXL_AI_BUFFER_SIZE 4096
     58 #define CXL_AI_MAX_ENTRIES 256
     59 #define CXL_AI_MAX_CHUNK_SIZE (CXL_AI_BUFFER_SIZE * CXL_AI_MAX_ENTRIES)
     60 struct cxl_adapter_image {
     61   __u64 flags;
     62   __u64 data;
     63   __u64 len_data;
     64   __u64 len_image;
     65   __u64 reserved1;
     66   __u64 reserved2;
     67   __u64 reserved3;
     68   __u64 reserved4;
     69 };
     70 #define CXL_MAGIC 0xCA
     71 #define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work)
     72 #define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32)
     73 #define CXL_IOCTL_GET_AFU_ID _IOR(CXL_MAGIC, 0x02, struct cxl_afu_id)
     74 #define CXL_IOCTL_DOWNLOAD_IMAGE _IOW(CXL_MAGIC, 0x0A, struct cxl_adapter_image)
     75 #define CXL_IOCTL_VALIDATE_IMAGE _IOW(CXL_MAGIC, 0x0B, struct cxl_adapter_image)
     76 #define CXL_READ_MIN_SIZE 0x1000
     77 enum cxl_event_type {
     78   CXL_EVENT_RESERVED = 0,
     79   CXL_EVENT_AFU_INTERRUPT = 1,
     80   CXL_EVENT_DATA_STORAGE = 2,
     81   CXL_EVENT_AFU_ERROR = 3,
     82   CXL_EVENT_AFU_DRIVER = 4,
     83 };
     84 struct cxl_event_header {
     85   __u16 type;
     86   __u16 size;
     87   __u16 process_element;
     88   __u16 reserved1;
     89 };
     90 struct cxl_event_afu_interrupt {
     91   __u16 flags;
     92   __u16 irq;
     93   __u32 reserved1;
     94 };
     95 struct cxl_event_data_storage {
     96   __u16 flags;
     97   __u16 reserved1;
     98   __u32 reserved2;
     99   __u64 addr;
    100   __u64 dsisr;
    101   __u64 reserved3;
    102 };
    103 struct cxl_event_afu_error {
    104   __u16 flags;
    105   __u16 reserved1;
    106   __u32 reserved2;
    107   __u64 error;
    108 };
    109 struct cxl_event_afu_driver_reserved {
    110   __u32 data_size;
    111   __u8 data[];
    112 };
    113 struct cxl_event {
    114   struct cxl_event_header header;
    115   union {
    116     struct cxl_event_afu_interrupt irq;
    117     struct cxl_event_data_storage fault;
    118     struct cxl_event_afu_error afu_error;
    119     struct cxl_event_afu_driver_reserved afu_driver_event;
    120   };
    121 };
    122 #endif
    123