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Merge branch 'topic/cxl' into next

This merges in the removal of the IBM CAPI "cxl" driver.

Michael Ellerman committed 1 year ago

Commit 64f7efb2 parents 7b667ac 5a0fcb048 files · +42 −14311Browse files

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include/uapi/misc/cxl.h+0−156
@@ -1,156 +0,0 @@
1−/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2−/*
3− * Copyright 2014 IBM Corp.
4− *
5− * This program is free software; you can redistribute it and/or
6− * modify it under the terms of the GNU General Public License
7− * as published by the Free Software Foundation; either version
8− * 2 of the License, or (at your option) any later version.
9− */
10−
11−#ifndef _UAPI_MISC_CXL_H
12−#define _UAPI_MISC_CXL_H
13−
14−#include <linux/types.h>
15−#include <linux/ioctl.h>
16−
17−
18−struct cxl_ioctl_start_work {
19− __u64 flags;
20− __u64 work_element_descriptor;
21− __u64 amr;
22− __s16 num_interrupts;
23− __u16 tid;
24− __s32 reserved1;
25− __u64 reserved2;
26− __u64 reserved3;
27− __u64 reserved4;
28− __u64 reserved5;
29−};
30−
31−#define CXL_START_WORK_AMR 0x0000000000000001ULL
32−#define CXL_START_WORK_NUM_IRQS 0x0000000000000002ULL
33−#define CXL_START_WORK_ERR_FF 0x0000000000000004ULL
34−#define CXL_START_WORK_TID 0x0000000000000008ULL
35−#define CXL_START_WORK_ALL (CXL_START_WORK_AMR |\
36− CXL_START_WORK_NUM_IRQS |\
37− CXL_START_WORK_ERR_FF |\
38− CXL_START_WORK_TID)
39−
40−
41−/* Possible modes that an afu can be in */
42−#define CXL_MODE_DEDICATED 0x1
43−#define CXL_MODE_DIRECTED 0x2
44−
45−/* possible flags for the cxl_afu_id flags field */
46−#define CXL_AFUID_FLAG_SLAVE 0x1 /* In directed-mode afu is in slave mode */
47−
48−struct cxl_afu_id {
49− __u64 flags; /* One of CXL_AFUID_FLAG_X */
50− __u32 card_id;
51− __u32 afu_offset;
52− __u32 afu_mode; /* one of the CXL_MODE_X */
53− __u32 reserved1;
54− __u64 reserved2;
55− __u64 reserved3;
56− __u64 reserved4;
57− __u64 reserved5;
58− __u64 reserved6;
59−};
60−
61−/* base adapter image header is included in the image */
62−#define CXL_AI_NEED_HEADER 0x0000000000000001ULL
63−#define CXL_AI_ALL CXL_AI_NEED_HEADER
64−
65−#define CXL_AI_HEADER_SIZE 128
66−#define CXL_AI_BUFFER_SIZE 4096
67−#define CXL_AI_MAX_ENTRIES 256
68−#define CXL_AI_MAX_CHUNK_SIZE (CXL_AI_BUFFER_SIZE * CXL_AI_MAX_ENTRIES)
69−
70−struct cxl_adapter_image {
71− __u64 flags;
72− __u64 data;
73− __u64 len_data;
74− __u64 len_image;
75− __u64 reserved1;
76− __u64 reserved2;
77− __u64 reserved3;
78− __u64 reserved4;
79−};
80−
81−/* ioctl numbers */
82−#define CXL_MAGIC 0xCA
83−/* AFU devices */
84−#define CXL_IOCTL_START_WORK _IOW(CXL_MAGIC, 0x00, struct cxl_ioctl_start_work)
85−#define CXL_IOCTL_GET_PROCESS_ELEMENT _IOR(CXL_MAGIC, 0x01, __u32)
86−#define CXL_IOCTL_GET_AFU_ID _IOR(CXL_MAGIC, 0x02, struct cxl_afu_id)
87−/* adapter devices */
88−#define CXL_IOCTL_DOWNLOAD_IMAGE _IOW(CXL_MAGIC, 0x0A, struct cxl_adapter_image)
89−#define CXL_IOCTL_VALIDATE_IMAGE _IOW(CXL_MAGIC, 0x0B, struct cxl_adapter_image)
90−
91−#define CXL_READ_MIN_SIZE 0x1000 /* 4K */
92−
93−/* Events from read() */
94−enum cxl_event_type {
95− CXL_EVENT_RESERVED = 0,
96− CXL_EVENT_AFU_INTERRUPT = 1,
97− CXL_EVENT_DATA_STORAGE = 2,
98− CXL_EVENT_AFU_ERROR = 3,
99− CXL_EVENT_AFU_DRIVER = 4,
100−};
101−
102−struct cxl_event_header {
103− __u16 type;
104− __u16 size;
105− __u16 process_element;
106− __u16 reserved1;
107−};
108−
109−struct cxl_event_afu_interrupt {
110− __u16 flags;
111− __u16 irq; /* Raised AFU interrupt number */
112− __u32 reserved1;
113−};
114−
115−struct cxl_event_data_storage {
116− __u16 flags;
117− __u16 reserved1;
118− __u32 reserved2;
119− __u64 addr;
120− __u64 dsisr;
121− __u64 reserved3;
122−};
123−
124−struct cxl_event_afu_error {
125− __u16 flags;
126− __u16 reserved1;
127− __u32 reserved2;
128− __u64 error;
129−};
130−
131−struct cxl_event_afu_driver_reserved {
132− /*
133− * Defines the buffer passed to the cxl driver by the AFU driver.
134− *
135− * This is not ABI since the event header.size passed to the user for
136− * existing events is set in the read call to sizeof(cxl_event_header)
137− * + sizeof(whatever event is being dispatched) and the user is already
138− * required to use a 4K buffer on the read call.
139− *
140− * Of course the contents will be ABI, but that's up the AFU driver.
141− */
142− __u32 data_size;
143− __u8 data[];
144−};
145−
146−struct cxl_event {
147− struct cxl_event_header header;
148− union {
149− struct cxl_event_afu_interrupt irq;
150− struct cxl_event_data_storage fault;
151− struct cxl_event_afu_error afu_error;
152− struct cxl_event_afu_driver_reserved afu_driver_event;
153− };
154−};
155−
156−#endif /* _UAPI_MISC_CXL_H */