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Sat, 9 Sep 2017 04:10:36 -0700 From: Shreyansh Jain To: CC: , Date: Sat, 9 Sep 2017 16:50:54 +0530 Message-ID: <20170909112132.13936-4-shreyansh.jain@nxp.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170909112132.13936-1-shreyansh.jain@nxp.com> References: <20170823141213.25476-1-shreyansh.jain@nxp.com> <20170909112132.13936-1-shreyansh.jain@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131494290406824002; (91ab9b29-cfa4-454e-5278-08d120cd25b8); () X-Forefront-Antispam-Report: CIP:192.88.168.50; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(336005)(39380400002)(39860400002)(2980300002)(1109001)(1110001)(339900001)(189002)(199003)(36756003)(47776003)(68736007)(81156014)(110136004)(1076002)(54906002)(50466002)(8936002)(48376002)(81166006)(85426001)(86362001)(50226002)(8676002)(53936002)(97736004)(5003940100001)(356003)(104016004)(6666003)(50986999)(76176999)(498600001)(189998001)(106466001)(77096006)(2906002)(5660300001)(6916009)(2950100002)(305945005)(2351001)(105606002)(8656003)(33646002)(4326008)(2004002)(473944003); 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO2PR03MB2261 Subject: [dpdk-dev] [PATCH v4 03/41] bus/dpaa: add compatibility and helper macros X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Hemant Agrawal Linked list, bit operations and compatibility macros. Signed-off-by: Geoff Thorpe Signed-off-by: Hemant Agrawal --- v3: - Removed checkpatch warning and duplicate PER_CPU macro --- drivers/bus/dpaa/include/compat.h | 389 +++++++++++++++++++++++++++++++++++ drivers/bus/dpaa/include/dpaa_bits.h | 65 ++++++ drivers/bus/dpaa/include/dpaa_list.h | 101 +++++++++ 3 files changed, 555 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 diff --git a/drivers/bus/dpaa/include/compat.h b/drivers/bus/dpaa/include/compat.h new file mode 100644 index 0000000..a1fd53e --- /dev/null +++ b/drivers/bus/dpaa/include/compat.h @@ -0,0 +1,389 @@ +/*- + * 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 + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* 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 ASSERT(x) do {\ + if (!(x)) \ + rte_panic("DPAA: x"); \ +} while (0) +#define DPAA_BUG_ON(x) 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 +#include + +#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 */