cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / misc / cxl.h

diff --git a/i686-linux-gnu-4.7/usr/include/misc/cxl.h b/i686-linux-gnu-4.7/usr/include/misc/cxl.h
new file mode 100644 (file)
index 0000000..b0bb570
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/misc/cxl.h
@@ -0,0 +1,156 @@
+/* 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 _MISC_CXL_H
+#define _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 /* _MISC_CXL_H */