/*- * 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 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 #include #endif /* __COMPAT_H */