summaryrefslogtreecommitdiffstats
path: root/drivers/bus/fslmc/qbman/include/compat.h
blob: 41effe37e2cdcc13d9e9e313ad8f30ac8e5853b4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
/*-
 *   BSD LICENSE
 *
 * Copyright (c) 2008-2016 Freescale Semiconductor, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *	 notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *	 notice, this list of conditions and the following disclaimer in the
 *	 documentation and/or other materials provided with the distribution.
 *     * Neither the name of Freescale Semiconductor nor the
 *	 names of its contributors may be used to endorse or promote products
 *	 derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef HEADER_COMPAT_H
#define HEADER_COMPAT_H

#include <sched.h>

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdint.h>
#include <stdlib.h>
#include <stddef.h>
#include <errno.h>
#include <string.h>
#include <pthread.h>
#include <net/ethernet.h>
#include <stdio.h>
#include <stdbool.h>
#include <ctype.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <limits.h>
#include <assert.h>
#include <dirent.h>
#include <inttypes.h>
#include <error.h>
#include <rte_atomic.h>

/* The following definitions are primarily to allow the single-source driver
 * interfaces to be included by arbitrary program code. Ie. for interfaces that
 * are also available in kernel-space, these definitions provide compatibility
 * with certain attributes and types used in those interfaces.
 */

/* Required compiler attributes */
#define __user
#define likely(x)	__builtin_expect(!!(x), 1)
#define unlikely(x)	__builtin_expect(!!(x), 0)
#define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
#undef container_of
#define container_of(ptr, type, member) ({ \
		typeof(((type *)0)->member)(*__mptr) = (ptr); \
		(type *)((char *)__mptr - offsetof(type, member)); })
#define __stringify_1(x) #x
#define __stringify(x)	__stringify_1(x)

#ifdef ARRAY_SIZE
#undef ARRAY_SIZE
#endif
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))

/* Required types */
typedef uint8_t		u8;
typedef uint16_t	u16;
typedef uint32_t	u32;
typedef uint64_t	u64;
typedef uint64_t	dma_addr_t;
typedef cpu_set_t	cpumask_t;
typedef	u32		compat_uptr_t;

static inline void __user *compat_ptr(compat_uptr_t uptr)
{
	return (void __user *)(unsigned long)uptr;
}

static inline compat_uptr_t ptr_to_compat(void __user *uptr)
{
	return (u32)(unsigned long)uptr;
}

/* I/O operations */
static inline u32 in_be32(volatile void *__p)
{
	volatile u32 *p = __p;
	return *p;
}

static inline void out_be32(volatile void *__p, u32 val)
{
	volatile u32 *p = __p;
	*p = val;
}

/* Debugging */
#define prflush(fmt, args...) \
	do { \
		printf(fmt, ##args); \
		fflush(stdout); \
	} while (0)
#define pr_crit(fmt, args...)	 prflush("CRIT:" fmt, ##args)
#define pr_err(fmt, args...)	 prflush("ERR:" fmt, ##args)
#define pr_warn(fmt, args...)	 prflush("WARN:" fmt, ##args)
#define pr_info(fmt, args...)	 prflush(fmt, ##args)

#ifdef pr_debug
#undef pr_debug
#endif
#define pr_debug(fmt, args...) {}
#define might_sleep_if(c) {}
#define msleep(x) {}
#define WARN_ON(c, str) \
do { \
	static int warned_##__LINE__; \
	if ((c) && !warned_##__LINE__) { \
		pr_warn("%s\n", str); \
		pr_warn("(%s:%d)\n", __FILE__, __LINE__); \
		warned_##__LINE__ = 1; \
	} \
} while (0)
#ifdef CONFIG_BUGON
#define QBMAN_BUG_ON(c) WARN_ON(c, "BUG")
#else
#define QBMAN_BUG_ON(c) {}
#endif

#define ALIGN(x, a) (((x) + ((typeof(x))(a) - 1)) & ~((typeof(x))(a) - 1))

/****************/
/* Linked-lists */
/****************/

struct list_head {
	struct list_head *prev;
	struct list_head *next;
};

#define LIST_HEAD(n) \
struct list_head n = { \
	.prev = &n, \
	.next = &n \
}

#define INIT_LIST_HEAD(p) \
do { \
	struct list_head *__p298 = (p); \
	__p298->next = __p298; \
	__p298->prev = __p298->next; \
} while (0)
#define list_entry(node, type, member) \
	(type *)((void *)node - offsetof(type, member))
#define list_empty(p) \
({ \
	const struct list_head *__p298 = (p); \
	((__p298->next == __p298) && (__p298->prev == __p298)); \
})
#define list_add(p, l) \
do { \
	struct list_head *__p298 = (p); \
	struct list_head *__l298 = (l); \
	__p298->next = __l298->next; \
	__p298->prev = __l298; \
	__l298->next->prev = __p298; \
	__l298->next = __p298; \
} while (0)
#define list_add_tail(p, l) \
do { \
	struct list_head *__p298 = (p); \
	struct list_head *__l298 = (l); \
	__p298->prev = __l298->prev; \
	__p298->next = __l298; \
	__l298->prev->next = __p298; \
	__l298->prev = __p298; \
} while (0)
#define list_for_each(i, l)				\
	for (i = (l)->next; i != (l); i = i->next)
#define list_for_each_safe(i, j, l)			\
	for (i = (l)->next, j = i->next; i != (l);	\
	     i = j, j = i->next)
#define list_for_each_entry(i, l, name) \
	for (i = list_entry((l)->next, typeof(*i), name); &i->name != (l); \
		i = list_entry(i->name.next, typeof(*i), name))
#define list_for_each_entry_safe(i, j, l, name) \
	for (i = list_entry((l)->next, typeof(*i), name), \
		j = list_entry(i->name.next, typeof(*j), name); \
		&i->name != (l); \
		i = j, j = list_entry(j->name.next, typeof(*j), name))
#define list_del(i) \
do { \
	(i)->next->prev = (i)->prev; \
	(i)->prev->next = (i)->next; \
} while (0)

/* Other miscellaneous interfaces our APIs depend on; */

#define lower_32_bits(x) ((u32)(x))
#define upper_32_bits(x) ((u32)(((x) >> 16) >> 16))

/* Compiler/type stuff */
typedef unsigned int	gfp_t;
typedef uint32_t	phandle;

#define __iomem
#define EINTR		4
#define ENODEV		19
#define GFP_KERNEL	0
#define __raw_readb(p)	(*(const volatile unsigned char *)(p))
#define __raw_readl(p)	(*(const volatile unsigned int *)(p))
#define __raw_writel(v, p) {*(volatile unsigned int *)(p) = (v); }

/* memcpy() stuff - when you know alignments in advance */
#ifdef CONFIG_TRY_BETTER_MEMCPY
static inline void copy_words(void *dest, const void *src, size_t sz)
{
	u32 *__dest = dest;
	const u32 *__src = src;
	size_t __sz = sz >> 2;

	QBMAN_BUG_ON((unsigned long)dest & 0x3);
	QBMAN_BUG_ON((unsigned long)src & 0x3);
	QBMAN_BUG_ON(sz & 0x3);
	while (__sz--)
		*(__dest++) = *(__src++);
}

static inline void copy_shorts(void *dest, const void *src, size_t sz)
{
	u16 *__dest = dest;
	const u16 *__src = src;
	size_t __sz = sz >> 1;

	QBMAN_BUG_ON((unsigned long)dest & 0x1);
	QBMAN_BUG_ON((unsigned long)src & 0x1);
	QBMAN_BUG_ON(sz & 0x1);
	while (__sz--)
		*(__dest++) = *(__src++);
}

static inline void copy_bytes(void *dest, const void *src, size_t sz)
{
	u8 *__dest = dest;
	const u8 *__src = src;

	while (sz--)
		*(__dest++) = *(__src++);
}
#else
#define copy_words memcpy
#define copy_shorts memcpy
#define copy_bytes memcpy
#endif

/* Completion stuff */
#define DECLARE_COMPLETION(n) int n = 0
#define complete(n) { *n = 1; }
#define wait_for_completion(n) \
do { \
	while (!*n) { \
		bman_poll(); \
		qman_poll(); \
	} \
	*n = 0; \
} while (0)

/* Allocator stuff */
#define kmalloc(sz, t)	malloc(sz)
#define vmalloc(sz)	malloc(sz)
#define kfree(p)	{ if (p) free(p); }
static inline void *kzalloc(size_t sz, gfp_t __foo __rte_unused)
{
	void *ptr = malloc(sz);

	if (ptr)
		memset(ptr, 0, sz);
	return ptr;
}

static inline unsigned long get_zeroed_page(gfp_t __foo __rte_unused)
{
	void *p;

	if (posix_memalign(&p, 4096, 4096))
		return 0;
	memset(p, 0, 4096);
	return (unsigned long)p;
}

static inline void free_page(unsigned long p)
{
	free((void *)p);
}

/* Bitfield stuff. */
#define BITS_PER_ULONG	(sizeof(unsigned long) << 3)
#define SHIFT_PER_ULONG	(((1 << 5) == BITS_PER_ULONG) ? 5 : 6)
#define BITS_MASK(idx)	((unsigned long)1 << ((idx) & (BITS_PER_ULONG - 1)))
#define BITS_IDX(idx)	((idx) >> SHIFT_PER_ULONG)
static inline unsigned long test_bits(unsigned long mask,
				      volatile unsigned long *p)
{
	return *p & mask;
}

static inline int test_bit(int idx, volatile unsigned long *bits)
{
	return test_bits(BITS_MASK(idx), bits + BITS_IDX(idx));
}

static inline void set_bits(unsigned long mask, volatile unsigned long *p)
{
	*p |= mask;
}

static inline void set_bit(int idx, volatile unsigned long *bits)
{
	set_bits(BITS_MASK(idx), bits + BITS_IDX(idx));
}

static inline void clear_bits(unsigned long mask, volatile unsigned long *p)
{
	*p &= ~mask;
}

static inline void clear_bit(int idx, volatile unsigned long *bits)
{
	clear_bits(BITS_MASK(idx), bits + BITS_IDX(idx));
}

static inline unsigned long test_and_set_bits(unsigned long mask,
					      volatile unsigned long *p)
{
	unsigned long ret = test_bits(mask, p);

	set_bits(mask, p);
	return ret;
}

static inline int test_and_set_bit(int idx, volatile unsigned long *bits)
{
	int ret = test_bit(idx, bits);

	set_bit(idx, bits);
	return ret;
}

static inline int test_and_clear_bit(int idx, volatile unsigned long *bits)
{
	int ret = test_bit(idx, bits);

	clear_bit(idx, bits);
	return ret;
}

static inline int find_next_zero_bit(unsigned long *bits, int limit, int idx)
{
	while ((++idx < limit) && test_bit(idx, bits))
		;
	return idx;
}

static inline int find_first_zero_bit(unsigned long *bits, int limit)
{
	int idx = 0;

	while (test_bit(idx, bits) && (++idx < limit))
		;
	return idx;
}

static inline u64 div64_u64(u64 n, u64 d)
{
	return n / d;
}

#define atomic_t                rte_atomic32_t
#define atomic_read(v)          rte_atomic32_read(v)
#define atomic_set(v, i)        rte_atomic32_set(v, i)

#define atomic_inc(v)           rte_atomic32_add(v, 1)
#define atomic_dec(v)           rte_atomic32_sub(v, 1)

#define atomic_inc_and_test(v)  rte_atomic32_inc_and_test(v)
#define atomic_dec_and_test(v)  rte_atomic32_dec_and_test(v)

#define atomic_inc_return(v)    rte_atomic32_add_return(v, 1)
#define atomic_dec_return(v)    rte_atomic32_sub_return(v, 1)
#define atomic_sub_and_test(i, v) (rte_atomic32_sub_return(v, i) == 0)

#endif /* HEADER_COMPAT_H */