[v6,03/40] bus/dpaa: add compatibility and helper macros

Message ID 20170928123000.1711-4-shreyansh.jain@nxp.com
State New
Headers show
Series
  • Untitled series #4510
Related show

Commit Message

Shreyansh Jain Sept. 28, 2017, 12:29 p.m.
From: Hemant Agrawal <hemant.agrawal@nxp.com>


Linked list, bit operations and compatibility macros.

Signed-off-by: Geoff Thorpe <geoff.thorpe@nxp.com>

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>

---
 drivers/bus/dpaa/include/compat.h    | 385 +++++++++++++++++++++++++++++++++++
 drivers/bus/dpaa/include/dpaa_bits.h |  65 ++++++
 drivers/bus/dpaa/include/dpaa_list.h | 101 +++++++++
 3 files changed, 551 insertions(+)
 create mode 100644 drivers/bus/dpaa/include/compat.h
 create mode 100644 drivers/bus/dpaa/include/dpaa_bits.h
 create mode 100644 drivers/bus/dpaa/include/dpaa_list.h

-- 
2.9.3

Patch

diff --git a/drivers/bus/dpaa/include/compat.h b/drivers/bus/dpaa/include/compat.h
new file mode 100644
index 0000000..42733ae
--- /dev/null
+++ b/drivers/bus/dpaa/include/compat.h
@@ -0,0 +1,385 @@ 
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2011 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 the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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 __COMPAT_H
+#define __COMPAT_H
+
+#include <sched.h>
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <stdint.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <linux/types.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_byteorder.h>
+#include <rte_atomic.h>
+#include <rte_spinlock.h>
+#include <rte_common.h>
+#include <rte_debug.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 __maybe_unused	__rte_unused
+#define __always_unused	__rte_unused
+#define __packed	__rte_packed
+#define noinline	__attribute__((noinline))
+
+#define L1_CACHE_BYTES 64
+#define ____cacheline_aligned __attribute__((aligned(L1_CACHE_BYTES)))
+#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]))
+
+/* 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 RTE_LIBRTE_DPAA_DEBUG_BUS
+#ifdef pr_debug
+#undef pr_debug
+#endif
+#define pr_debug(fmt, args...)	printf(fmt, ##args)
+#else
+#define pr_debug(fmt, args...) {}
+#endif
+
+#define DPAA_BUG_ON(x) RTE_ASSERT(x)
+
+/* 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 uint32_t	phandle;
+typedef uint32_t	gfp_t;
+typedef uint32_t	irqreturn_t;
+
+#define IRQ_HANDLED	0
+#define request_irq	qbman_request_irq
+#define free_irq	qbman_free_irq
+
+#define __iomem
+#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); }
+
+/* to be used as an upper-limit only */
+#define NR_CPUS			64
+
+/* Waitqueue stuff */
+typedef struct { }		wait_queue_head_t;
+#define DECLARE_WAIT_QUEUE_HEAD(x) int dummy_##x __always_unused
+#define wake_up(x)		do { } while (0)
+
+/* I/O operations */
+static inline u32 in_be32(volatile void *__p)
+{
+	volatile u32 *p = __p;
+	return rte_be_to_cpu_32(*p);
+}
+
+static inline void out_be32(volatile void *__p, u32 val)
+{
+	volatile u32 *p = __p;
+	*p = rte_cpu_to_be_32(val);
+}
+
+#define dcbt_ro(p) __builtin_prefetch(p, 0)
+#define dcbt_rw(p) __builtin_prefetch(p, 1)
+
+#define dcbz(p) { asm volatile("dc zva, %0" : : "r" (p) : "memory"); }
+#define dcbz_64(p) dcbz(p)
+#define hwsync() rte_rmb()
+#define lwsync() rte_wmb()
+#define dcbf(p) { asm volatile("dc cvac, %0" : : "r"(p) : "memory"); }
+#define dcbf_64(p) dcbf(p)
+#define dccivac(p) { asm volatile("dc civac, %0" : : "r"(p) : "memory"); }
+
+#define dcbit_ro(p) \
+	do { \
+		dccivac(p);						\
+		asm volatile("prfm pldl1keep, [%0, #64]" : : "r" (p));	\
+	} while (0)
+
+#define barrier() { asm volatile ("" : : : "memory"); }
+#define cpu_relax barrier
+
+static inline uint64_t mfatb(void)
+{
+	uint64_t ret, ret_new, timeout = 200;
+
+	asm volatile ("mrs %0, cntvct_el0" : "=r" (ret));
+	asm volatile ("mrs %0, cntvct_el0" : "=r" (ret_new));
+	while (ret != ret_new && timeout--) {
+		ret = ret_new;
+		asm volatile ("mrs %0, cntvct_el0" : "=r" (ret_new));
+	}
+	DPAA_BUG_ON(!timeout && (ret != ret_new));
+	return ret * 64;
+}
+
+/* Spin for a few cycles without bothering the bus */
+static inline void cpu_spin(int cycles)
+{
+	uint64_t now = mfatb();
+
+	while (mfatb() < (now + cycles))
+		;
+}
+
+/* Qman/Bman API inlines and macros; */
+#ifdef lower_32_bits
+#undef lower_32_bits
+#endif
+#define lower_32_bits(x) ((u32)(x))
+
+#ifdef upper_32_bits
+#undef upper_32_bits
+#endif
+#define upper_32_bits(x) ((u32)(((x) >> 16) >> 16))
+
+/*
+ * Swap bytes of a 48-bit value.
+ */
+static inline uint64_t
+__bswap_48(uint64_t x)
+{
+	return  ((x & 0x0000000000ffULL) << 40) |
+		((x & 0x00000000ff00ULL) << 24) |
+		((x & 0x000000ff0000ULL) <<  8) |
+		((x & 0x0000ff000000ULL) >>  8) |
+		((x & 0x00ff00000000ULL) >> 24) |
+		((x & 0xff0000000000ULL) >> 40);
+}
+
+/*
+ * Swap bytes of a 40-bit value.
+ */
+static inline uint64_t
+__bswap_40(uint64_t x)
+{
+	return  ((x & 0x00000000ffULL) << 32) |
+		((x & 0x000000ff00ULL) << 16) |
+		((x & 0x0000ff0000ULL)) |
+		((x & 0x00ff000000ULL) >> 16) |
+		((x & 0xff00000000ULL) >> 32);
+}
+
+/*
+ * Swap bytes of a 24-bit value.
+ */
+static inline uint32_t
+__bswap_24(uint32_t x)
+{
+	return  ((x & 0x0000ffULL) << 16) |
+		((x & 0x00ff00ULL)) |
+		((x & 0xff0000ULL) >> 16);
+}
+
+#define be64_to_cpu(x) rte_be_to_cpu_64(x)
+#define be32_to_cpu(x) rte_be_to_cpu_32(x)
+#define be16_to_cpu(x) rte_be_to_cpu_16(x)
+
+#define cpu_to_be64(x) rte_cpu_to_be_64(x)
+#define cpu_to_be32(x) rte_cpu_to_be_32(x)
+#define cpu_to_be16(x) rte_cpu_to_be_16(x)
+
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+
+#define cpu_to_be48(x) __bswap_48(x)
+#define be48_to_cpu(x) __bswap_48(x)
+
+#define cpu_to_be40(x) __bswap_40(x)
+#define be40_to_cpu(x) __bswap_40(x)
+
+#define cpu_to_be24(x) __bswap_24(x)
+#define be24_to_cpu(x) __bswap_24(x)
+
+#else /* RTE_BIG_ENDIAN */
+
+#define cpu_to_be48(x) (x)
+#define be48_to_cpu(x) (x)
+
+#define cpu_to_be40(x) (x)
+#define be40_to_cpu(x) (x)
+
+#define cpu_to_be24(x) (x)
+#define be24_to_cpu(x) (x)
+
+#endif /* RTE_BIG_ENDIAN */
+
+/* When copying aligned words or shorts, try to avoid memcpy() */
+/* memcpy() stuff - when you know alignments in advance */
+#define CONFIG_TRY_BETTER_MEMCPY
+
+#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;
+
+	DPAA_BUG_ON((unsigned long)dest & 0x3);
+	DPAA_BUG_ON((unsigned long)src & 0x3);
+	DPAA_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;
+
+	DPAA_BUG_ON((unsigned long)dest & 0x1);
+	DPAA_BUG_ON((unsigned long)src & 0x1);
+	DPAA_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
+
+/* 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;
+}
+
+/* Spinlock stuff */
+#define spinlock_t		rte_spinlock_t
+#define __SPIN_LOCK_UNLOCKED(x)	RTE_SPINLOCK_INITIALIZER
+#define DEFINE_SPINLOCK(x)	spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
+#define spin_lock_init(x)	rte_spinlock_init(x)
+#define spin_lock_destroy(x)
+#define spin_lock(x)		rte_spinlock_lock(x)
+#define spin_unlock(x)		rte_spinlock_unlock(x)
+#define spin_lock_irq(x)	spin_lock(x)
+#define spin_unlock_irq(x)	spin_unlock(x)
+#define spin_lock_irqsave(x, f) spin_lock_irq(x)
+#define spin_unlock_irqrestore(x, f) spin_unlock_irq(x)
+
+#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)
+
+#include <dpaa_list.h>
+#include <dpaa_bits.h>
+
+#endif /* __COMPAT_H */
diff --git a/drivers/bus/dpaa/include/dpaa_bits.h b/drivers/bus/dpaa/include/dpaa_bits.h
new file mode 100644
index 0000000..71f2d80
--- /dev/null
+++ b/drivers/bus/dpaa/include/dpaa_bits.h
@@ -0,0 +1,65 @@ 
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2017 NXP.
+ *
+ *   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 NXP 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "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 THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS 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 __DPAA_BITS_H
+#define __DPAA_BITS_H
+
+/* 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)	(1UL << ((idx) & (BITS_PER_ULONG - 1)))
+#define BITS_IDX(idx)	((idx) >> SHIFT_PER_ULONG)
+
+static inline void dpaa_set_bits(unsigned long mask,
+				 volatile unsigned long *p)
+{
+	*p |= mask;
+}
+
+static inline void dpaa_set_bit(int idx, volatile unsigned long *bits)
+{
+	dpaa_set_bits(BITS_MASK(idx), bits + BITS_IDX(idx));
+}
+
+static inline void dpaa_clear_bits(unsigned long mask,
+				   volatile unsigned long *p)
+{
+	*p &= ~mask;
+}
+
+static inline void dpaa_clear_bit(int idx,
+				  volatile unsigned long *bits)
+{
+	dpaa_clear_bits(BITS_MASK(idx), bits + BITS_IDX(idx));
+}
+
+#endif /* __DPAA_BITS_H */
diff --git a/drivers/bus/dpaa/include/dpaa_list.h b/drivers/bus/dpaa/include/dpaa_list.h
new file mode 100644
index 0000000..871e612
--- /dev/null
+++ b/drivers/bus/dpaa/include/dpaa_list.h
@@ -0,0 +1,101 @@ 
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright 2017 NXP.
+ *
+ *   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 NXP 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "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 THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS 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 __DPAA_LIST_H
+#define __DPAA_LIST_H
+
+/****************/
+/* Linked-lists */
+/****************/
+
+struct list_head {
+	struct list_head *prev;
+	struct list_head *next;
+};
+
+#define COMPAT_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)
+
+#endif /* __DPAA_LIST_H */