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- Log ----------------------------------------------------------------- commit 506bf9dcf0e071cd8b168806b1d279124551af86 Author: Dmitry Eremin-Solenikov dmitry.ereminsolenikov@linaro.org Date: Wed Oct 4 21:15:33 2017 +0300
linux-gen: more unification of arch-specific code
Signed-off-by: Dmitry Eremin-Solenikov dmitry.ereminsolenikov@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/platform/linux-generic/Makefile.am b/platform/linux-generic/Makefile.am index f830d69f..05456681 100644 --- a/platform/linux-generic/Makefile.am +++ b/platform/linux-generic/Makefile.am @@ -278,6 +278,7 @@ arch_odp_headers = $(srcdir)/arch/arm/odp/api/cpu_arch.h noinst_HEADERS += ${srcdir}/arch/arm/odp_atomic.h \ ${srcdir}/arch/arm/odp_cpu.h \ ${srcdir}/arch/arm/odp_cpu_idling.h \ + ${srcdir}/arch/default/odp_cpu_idling.h \ ${srcdir}/arch/arm/odp_llsc.h endif if ARCH_IS_AARCH64 @@ -289,6 +290,7 @@ arch_odp_headers = $(srcdir)/arch/aarch64/odp/api/cpu_arch.h noinst_HEADERS += ${srcdir}/arch/aarch64/odp_atomic.h \ ${srcdir}/arch/aarch64/odp_cpu.h \ ${srcdir}/arch/aarch64/odp_cpu_idling.h \ + ${srcdir}/arch/default/odp_cpu_idling.h \ ${srcdir}/arch/aarch64/odp_llsc.h endif if ARCH_IS_MIPS64 @@ -297,7 +299,8 @@ __LIB__libodp_linux_la_SOURCES += arch/mips64/odp_cpu_arch.c \ arch/default/odp_global_time.c \ arch/mips64/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/mips64/odp/api/cpu_arch.h -noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h \ + ${srcdir}/arch/default/odp_cpu_idling.h endif if ARCH_IS_POWERPC __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ @@ -305,7 +308,8 @@ __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ arch/default/odp_global_time.c \ arch/powerpc/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/powerpc/odp/api/cpu_arch.h -noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h \ + ${srcdir}/arch/default/odp_cpu_idling.h endif if ARCH_IS_X86 __LIB__libodp_linux_la_SOURCES += arch/x86/cpu_flags.c \ @@ -315,7 +319,8 @@ __LIB__libodp_linux_la_SOURCES += arch/x86/cpu_flags.c \ arch/x86/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/x86/odp/api/cpu_arch.h noinst_HEADERS += $(srcdir)/arch/x86/cpu_flags.h -noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h \ + ${srcdir}/arch/default/odp_cpu_idling.h endif
noinst_HEADERS += $(srcdir)/arch/default/odp/api/cpu_arch.h diff --git a/platform/linux-generic/arch/aarch64/odp_cpu_idling.h b/platform/linux-generic/arch/aarch64/odp_cpu_idling.h index ab29455b..e7dec7d9 100644 --- a/platform/linux-generic/arch/aarch64/odp_cpu_idling.h +++ b/platform/linux-generic/arch/aarch64/odp_cpu_idling.h @@ -13,39 +13,33 @@ #error This file should not be included directly, please include odp_cpu.h #endif
+#ifndef CONFIG_WFE + +#include "../default/odp_cpu_idling.h" + +#else /* CONFIG_WFE */ + static inline void sevl(void) { -#ifdef CONFIG_WFE __asm__ volatile("sevl" : : : ); -#endif }
static inline int wfe(void) { -#ifdef CONFIG_WFE __asm__ volatile("wfe" : : : "memory"); -#endif return 1; }
static inline void doze(void) { -#ifndef CONFIG_WFE /* When using WFE do not stall the pipeline using other means */ odp_cpu_pause(); -#endif }
-#ifdef CONFIG_WFE #define monitor128(addr, mo) lld((addr), (mo)) #define monitor64(addr, mo) ll64((addr), (mo)) #define monitor32(addr, mo) ll32((addr), (mo)) #define monitor8(addr, mo) ll8((addr), (mo)) -#else -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) -#endif +#endif /* CONFIG_WFE */
#endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_CPU_IDLING_H */ diff --git a/platform/linux-generic/arch/arm/odp_cpu_idling.h b/platform/linux-generic/arch/arm/odp_cpu_idling.h index ab29455b..e7dec7d9 100644 --- a/platform/linux-generic/arch/arm/odp_cpu_idling.h +++ b/platform/linux-generic/arch/arm/odp_cpu_idling.h @@ -13,39 +13,33 @@ #error This file should not be included directly, please include odp_cpu.h #endif
+#ifndef CONFIG_WFE + +#include "../default/odp_cpu_idling.h" + +#else /* CONFIG_WFE */ + static inline void sevl(void) { -#ifdef CONFIG_WFE __asm__ volatile("sevl" : : : ); -#endif }
static inline int wfe(void) { -#ifdef CONFIG_WFE __asm__ volatile("wfe" : : : "memory"); -#endif return 1; }
static inline void doze(void) { -#ifndef CONFIG_WFE /* When using WFE do not stall the pipeline using other means */ odp_cpu_pause(); -#endif }
-#ifdef CONFIG_WFE #define monitor128(addr, mo) lld((addr), (mo)) #define monitor64(addr, mo) ll64((addr), (mo)) #define monitor32(addr, mo) ll32((addr), (mo)) #define monitor8(addr, mo) ll8((addr), (mo)) -#else -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) -#endif +#endif /* CONFIG_WFE */
#endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_CPU_IDLING_H */ diff --git a/platform/linux-generic/arch/default/odp_cpu.h b/platform/linux-generic/arch/default/odp_cpu.h index 12a44b93..2df6f65c 100644 --- a/platform/linux-generic/arch/default/odp_cpu.h +++ b/platform/linux-generic/arch/default/odp_cpu.h @@ -16,28 +16,6 @@ #define atomic_store_release(loc, val, ro) \ __atomic_store_n(loc, val, __ATOMIC_RELEASE)
-/****************************************************************************** - * Idle mgmt - *****************************************************************************/ - -static inline void sevl(void) -{ - /* empty */ -} - -static inline int wfe(void) -{ - return 1; -} - -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) - -static inline void doze(void) -{ - odp_cpu_pause(); -} +#include "odp_cpu_idling.h"
#endif diff --git a/platform/linux-generic/arch/default/odp_cpu.h b/platform/linux-generic/arch/default/odp_cpu_idling.h similarity index 69% copy from platform/linux-generic/arch/default/odp_cpu.h copy to platform/linux-generic/arch/default/odp_cpu_idling.h index 12a44b93..db1eebd1 100644 --- a/platform/linux-generic/arch/default/odp_cpu.h +++ b/platform/linux-generic/arch/default/odp_cpu_idling.h @@ -6,15 +6,8 @@ * SPDX-License-Identifier: BSD-3-Clause */
-#ifndef ODP_DEFAULT_CPU_H_ -#define ODP_DEFAULT_CPU_H_ - -/****************************************************************************** - * Atomics - *****************************************************************************/ - -#define atomic_store_release(loc, val, ro) \ - __atomic_store_n(loc, val, __ATOMIC_RELEASE) +#ifndef ODP_DEFAULT_CPU_IDLING_H_ +#define ODP_DEFAULT_CPU_IDLING_H_
/****************************************************************************** * Idle mgmt
commit 41472f5887d172234aaa89af0775b9e32f2209e9 Author: Dmitry Eremin-Solenikov dmitry.ereminsolenikov@linaro.org Date: Wed Oct 4 21:07:02 2017 +0300
linux-gen: update api-next to follow merged changes
There were changes in master branch on the way architecture files are treated. Update api-next after merging in master to follow those changes.
Signed-off-by: Dmitry Eremin-Solenikov dmitry.ereminsolenikov@linaro.org Signed-off-by: Maxim Uvarov maxim.uvarov@linaro.org
diff --git a/platform/linux-generic/Makefile.am b/platform/linux-generic/Makefile.am index 8f6c6570..f830d69f 100644 --- a/platform/linux-generic/Makefile.am +++ b/platform/linux-generic/Makefile.am @@ -9,6 +9,7 @@ AM_CPPFLAGS += -I$(top_srcdir)/include/odp/arch/@ARCH_ABI@ AM_CPPFLAGS += -I$(top_builddir)/include AM_CPPFLAGS += -Iinclude AM_CPPFLAGS += -I$(top_srcdir)/platform/$(with_platform)/arch/$(ARCH_DIR) +AM_CPPFLAGS += -I$(top_srcdir)/platform/$(with_platform)/arch/default AM_CPPFLAGS += -Iinclude AM_CPPFLAGS += -DSYSCONFDIR="@sysconfdir@"
@@ -195,22 +196,6 @@ noinst_HEADERS = \ ${srcdir}/include/protocols/thash.h \ ${srcdir}/include/protocols/udp.h
-if ARCH_IS_ARM -noinst_HEADERS += ${srcdir}/arch/arm/odp_atomic.h \ - ${srcdir}/arch/arm/odp_cpu.h \ - ${srcdir}/arch/arm/odp_cpu_idling.h \ - ${srcdir}/arch/arm/odp_llsc.h -endif -if ARCH_IS_MIPS64 -noinst_HEADERS += ${srcdir}/arch/mips64/odp_cpu.h -endif -if ARCH_IS_POWERPC -noinst_HEADERS += ${srcdir}/arch/powerpc/odp_cpu.h -endif -if ARCH_IS_X86 -noinst_HEADERS += ${srcdir}/arch/x86/odp_cpu.h -endif - __LIB__libodp_linux_la_SOURCES = \ _fdserver.c \ _ishm.c \ @@ -290,6 +275,10 @@ __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ arch/default/odp_global_time.c \ arch/default/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/arm/odp/api/cpu_arch.h +noinst_HEADERS += ${srcdir}/arch/arm/odp_atomic.h \ + ${srcdir}/arch/arm/odp_cpu.h \ + ${srcdir}/arch/arm/odp_cpu_idling.h \ + ${srcdir}/arch/arm/odp_llsc.h endif if ARCH_IS_AARCH64 __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ @@ -297,6 +286,10 @@ __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ arch/aarch64/odp_global_time.c \ arch/default/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/aarch64/odp/api/cpu_arch.h +noinst_HEADERS += ${srcdir}/arch/aarch64/odp_atomic.h \ + ${srcdir}/arch/aarch64/odp_cpu.h \ + ${srcdir}/arch/aarch64/odp_cpu_idling.h \ + ${srcdir}/arch/aarch64/odp_llsc.h endif if ARCH_IS_MIPS64 __LIB__libodp_linux_la_SOURCES += arch/mips64/odp_cpu_arch.c \ @@ -304,6 +297,7 @@ __LIB__libodp_linux_la_SOURCES += arch/mips64/odp_cpu_arch.c \ arch/default/odp_global_time.c \ arch/mips64/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/mips64/odp/api/cpu_arch.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h endif if ARCH_IS_POWERPC __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ @@ -311,6 +305,7 @@ __LIB__libodp_linux_la_SOURCES += arch/default/odp_cpu_arch.c \ arch/default/odp_global_time.c \ arch/powerpc/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/powerpc/odp/api/cpu_arch.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h endif if ARCH_IS_X86 __LIB__libodp_linux_la_SOURCES += arch/x86/cpu_flags.c \ @@ -320,6 +315,7 @@ __LIB__libodp_linux_la_SOURCES += arch/x86/cpu_flags.c \ arch/x86/odp_sysinfo_parse.c arch_odp_headers = $(srcdir)/arch/x86/odp/api/cpu_arch.h noinst_HEADERS += $(srcdir)/arch/x86/cpu_flags.h +noinst_HEADERS += ${srcdir}/arch/default/odp_cpu.h endif
noinst_HEADERS += $(srcdir)/arch/default/odp/api/cpu_arch.h diff --git a/platform/linux-generic/arch/arm/odp_atomic.h b/platform/linux-generic/arch/aarch64/odp_atomic.h similarity index 99% copy from platform/linux-generic/arch/arm/odp_atomic.h copy to platform/linux-generic/arch/aarch64/odp_atomic.h index 3a21a47b..23bf96c7 100644 --- a/platform/linux-generic/arch/arm/odp_atomic.h +++ b/platform/linux-generic/arch/aarch64/odp_atomic.h @@ -28,8 +28,6 @@ do { \
#endif /* CONFIG_DMBSTR */
-#ifdef __aarch64__ - #define HAS_ACQ(mo) ((mo) != __ATOMIC_RELAXED && (mo) != __ATOMIC_RELEASE) #define HAS_RLS(mo) ((mo) == __ATOMIC_RELEASE || (mo) == __ATOMIC_ACQ_REL || \ (mo) == __ATOMIC_SEQ_CST) @@ -207,6 +205,4 @@ static inline __int128 __lockfree_load_16(__int128 *var, int mo) return old; }
-#endif /* __aarch64__ */ - #endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_ATOMIC_H */ diff --git a/platform/linux-generic/arch/arm/odp_cpu.h b/platform/linux-generic/arch/aarch64/odp_cpu.h similarity index 85% copy from platform/linux-generic/arch/arm/odp_cpu.h copy to platform/linux-generic/arch/aarch64/odp_cpu.h index 72c81020..fc35a462 100644 --- a/platform/linux-generic/arch/arm/odp_cpu.h +++ b/platform/linux-generic/arch/aarch64/odp_cpu.h @@ -9,8 +9,8 @@ #ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H #define PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H
-#if !defined(__arm__) && !defined(__aarch64__) -#error Use this file only when compiling for ARM architecture +#if !defined(__aarch64__) +#error Use this file only when compiling for ARMv8 architecture #endif
#include <odp_debug_internal.h> @@ -38,17 +38,13 @@ * more scalable) and enables the CPU to enter a sleep state (lower power * consumption). */ -#ifdef __aarch64__ #define CONFIG_WFE -#endif
static inline void dmb(void) { __asm__ volatile("dmb" : : : "memory"); }
-#ifdef __aarch64__ - /* Only ARMv8 supports DMB ISHLD */ /* A load only barrier is much cheaper than full barrier */ #define _odp_release_barrier(ro) \ @@ -59,13 +55,6 @@ do { \ __asm__ volatile("dmb ish" ::: "memory"); \ } while (0)
-#else - -#define _odp_release_barrier(ro) \ - __atomic_thread_fence(__ATOMIC_RELEASE) - -#endif /* __aarch64__ */ - #include "odp_llsc.h" #include "odp_atomic.h" #include "odp_cpu_idling.h" diff --git a/platform/linux-generic/arch/aarch64/odp_cpu_idling.h b/platform/linux-generic/arch/aarch64/odp_cpu_idling.h new file mode 100644 index 00000000..ab29455b --- /dev/null +++ b/platform/linux-generic/arch/aarch64/odp_cpu_idling.h @@ -0,0 +1,51 @@ +/* Copyright (c) 2017, ARM Limited. All rights reserved. + * + * Copyright (c) 2017, Linaro Limited + * All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_CPU_IDLING_H +#define PLATFORM_LINUXGENERIC_ARCH_ARM_CPU_IDLING_H + +#ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H +#error This file should not be included directly, please include odp_cpu.h +#endif + +static inline void sevl(void) +{ +#ifdef CONFIG_WFE + __asm__ volatile("sevl" : : : ); +#endif +} + +static inline int wfe(void) +{ +#ifdef CONFIG_WFE + __asm__ volatile("wfe" : : : "memory"); +#endif + return 1; +} + +static inline void doze(void) +{ +#ifndef CONFIG_WFE + /* When using WFE do not stall the pipeline using other means */ + odp_cpu_pause(); +#endif +} + +#ifdef CONFIG_WFE +#define monitor128(addr, mo) lld((addr), (mo)) +#define monitor64(addr, mo) ll64((addr), (mo)) +#define monitor32(addr, mo) ll32((addr), (mo)) +#define monitor8(addr, mo) ll8((addr), (mo)) +#else +#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) +#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) +#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) +#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) +#endif + +#endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_CPU_IDLING_H */ diff --git a/platform/linux-generic/arch/arm/odp_llsc.h b/platform/linux-generic/arch/aarch64/odp_llsc.h similarity index 68% copy from platform/linux-generic/arch/arm/odp_llsc.h copy to platform/linux-generic/arch/aarch64/odp_llsc.h index 73c4d7b1..f5679293 100644 --- a/platform/linux-generic/arch/arm/odp_llsc.h +++ b/platform/linux-generic/arch/aarch64/odp_llsc.h @@ -13,92 +13,6 @@ #error This file should not be included directly, please include odp_cpu.h #endif
-#ifdef __arm__ - -static inline uint32_t ll8(uint8_t *var, int mm) -{ - uint8_t old; - - __asm__ volatile("ldrexb %0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - /* Barrier after an acquiring load */ - if (mm == __ATOMIC_ACQUIRE) - dmb(); - return old; -} - -static inline uint32_t ll(uint32_t *var, int mm) -{ - uint32_t old; - - __asm__ volatile("ldrex %0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - /* Barrier after an acquiring load */ - if (mm == __ATOMIC_ACQUIRE) - dmb(); - return old; -} - -#define ll32(a, b) ll((a), (b)) - -/* Return 0 on success, 1 on failure */ -static inline uint32_t sc(uint32_t *var, uint32_t neu, int mm) -{ - uint32_t ret; - - /* Barrier before a releasing store */ - if (mm == __ATOMIC_RELEASE) - dmb(); - __asm__ volatile("strex %0, %1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - return ret; -} - -#define sc32(a, b, c) sc((a), (b), (c)) - -static inline uint64_t lld(uint64_t *var, int mm) -{ - uint64_t old; - - __asm__ volatile("ldrexd %0, %H0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - /* Barrier after an acquiring load */ - if (mm == __ATOMIC_ACQUIRE) - dmb(); - return old; -} - -#define ll64(a, b) lld((a), (b)) - -/* Return 0 on success, 1 on failure */ -static inline uint32_t scd(uint64_t *var, uint64_t neu, int mm) -{ - uint32_t ret; - - /* Barrier before a releasing store */ - if (mm == __ATOMIC_RELEASE) - dmb(); - __asm__ volatile("strexd %0, %1, %H1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - return ret; -} - -#define sc64(a, b, c) scd((a), (b), (c)) - -#endif /* __arm__ */ - -#ifdef __aarch64__ - static inline uint16_t ll8(uint8_t *var, int mm) { uint16_t old; @@ -248,6 +162,4 @@ static inline uint32_t scd(__int128 *var, __int128 neu, int mm) return ret; }
-#endif /* __aarch64__ */ - #endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_LLSC_H */ diff --git a/platform/linux-generic/arch/arm/odp_atomic.h b/platform/linux-generic/arch/arm/odp_atomic.h index 3a21a47b..590bdf4a 100644 --- a/platform/linux-generic/arch/arm/odp_atomic.h +++ b/platform/linux-generic/arch/arm/odp_atomic.h @@ -28,185 +28,4 @@ do { \
#endif /* CONFIG_DMBSTR */
-#ifdef __aarch64__ - -#define HAS_ACQ(mo) ((mo) != __ATOMIC_RELAXED && (mo) != __ATOMIC_RELEASE) -#define HAS_RLS(mo) ((mo) == __ATOMIC_RELEASE || (mo) == __ATOMIC_ACQ_REL || \ - (mo) == __ATOMIC_SEQ_CST) - -#define LL_MO(mo) (HAS_ACQ((mo)) ? __ATOMIC_ACQUIRE : __ATOMIC_RELAXED) -#define SC_MO(mo) (HAS_RLS((mo)) ? __ATOMIC_RELEASE : __ATOMIC_RELAXED) - -#ifndef __ARM_FEATURE_QRDMX /* Feature only available in v8.1a and beyond */ -static inline bool -__lockfree_compare_exchange_16(register __int128 *var, __int128 *exp, - register __int128 neu, bool weak, int mo_success, - int mo_failure) -{ - (void)weak; /* Always do strong CAS or we can't perform atomic read */ - /* Ignore memory ordering for failure, memory order for - * success must be stronger or equal. */ - (void)mo_failure; - register __int128 old; - register __int128 expected; - int ll_mo = LL_MO(mo_success); - int sc_mo = SC_MO(mo_success); - - expected = *exp; - __asm__ volatile("" ::: "memory"); - do { - /* Atomicity of LLD is not guaranteed */ - old = lld(var, ll_mo); - /* Must write back neu or old to verify atomicity of LLD */ - } while (odp_unlikely(scd(var, old == expected ? neu : old, sc_mo))); - *exp = old; /* Always update, atomically read value */ - return old == expected; -} - -static inline __int128 __lockfree_exchange_16(__int128 *var, __int128 neu, - int mo) -{ - register __int128 old; - int ll_mo = LL_MO(mo); - int sc_mo = SC_MO(mo); - - do { - /* Atomicity of LLD is not guaranteed */ - old = lld(var, ll_mo); - /* Must successfully write back to verify atomicity of LLD */ - } while (odp_unlikely(scd(var, neu, sc_mo))); - return old; -} - -static inline __int128 __lockfree_fetch_and_16(__int128 *var, __int128 mask, - int mo) -{ - register __int128 old; - int ll_mo = LL_MO(mo); - int sc_mo = SC_MO(mo); - - do { - /* Atomicity of LLD is not guaranteed */ - old = lld(var, ll_mo); - /* Must successfully write back to verify atomicity of LLD */ - } while (odp_unlikely(scd(var, old & mask, sc_mo))); - return old; -} - -static inline __int128 __lockfree_fetch_or_16(__int128 *var, __int128 mask, - int mo) -{ - register __int128 old; - int ll_mo = LL_MO(mo); - int sc_mo = SC_MO(mo); - - do { - /* Atomicity of LLD is not guaranteed */ - old = lld(var, ll_mo); - /* Must successfully write back to verify atomicity of LLD */ - } while (odp_unlikely(scd(var, old | mask, sc_mo))); - return old; -} - -#else - -static inline __int128 casp(__int128 *var, __int128 old, __int128 neu, int mo) -{ - if (mo == __ATOMIC_RELAXED) { - __asm__ volatile("casp %0, %H0, %1, %H1, [%2]" - : "+r" (old) - : "r" (neu), "r" (var) - : "memory"); - } else if (mo == __ATOMIC_ACQUIRE) { - __asm__ volatile("caspa %0, %H0, %1, %H1, [%2]" - : "+r" (old) - : "r" (neu), "r" (var) - : "memory"); - } else if (mo == __ATOMIC_ACQ_REL) { - __asm__ volatile("caspal %0, %H0, %1, %H1, [%2]" - : "+r" (old) - : "r" (neu), "r" (var) - : "memory"); - } else if (mo == __ATOMIC_RELEASE) { - __asm__ volatile("caspl %0, %H0, %1, %H1, [%2]" - : "+r" (old) - : "r" (neu), "r" (var) - : "memory"); - } else { - abort(); - } - return old; -} - -static inline bool -__lockfree_compare_exchange_16(register __int128 *var, __int128 *exp, - register __int128 neu, bool weak, int mo_success, - int mo_failure) -{ - (void)weak; - (void)mo_failure; - __int128 old; - __int128 expected; - - expected = *exp; - old = casp(var, expected, neu, mo_success); - *exp = old; /* Always update, atomically read value */ - return old == expected; -} - -static inline __int128 __lockfree_exchange_16(__int128 *var, __int128 neu, - int mo) -{ - __int128 old; - __int128 expected; - - do { - expected = *var; - old = casp(var, expected, neu, mo); - } while (old != expected); - return old; -} - -static inline __int128 __lockfree_fetch_and_16(__int128 *var, __int128 mask, - int mo) -{ - __int128 old; - __int128 expected; - - do { - expected = *var; - old = casp(var, expected, expected & mask, mo); - } while (old != expected); - return old; -} - -static inline __int128 __lockfree_fetch_or_16(__int128 *var, __int128 mask, - int mo) -{ - __int128 old; - __int128 expected; - - do { - expected = *var; - old = casp(var, expected, expected | mask, mo); - } while (old != expected); - return old; -} - -#endif /* __ARM_FEATURE_QRDMX */ - -static inline __int128 __lockfree_load_16(__int128 *var, int mo) -{ - __int128 old = *var; /* Possibly torn read */ - - /* Do CAS to ensure atomicity - * Either CAS succeeds (writing back the same value) - * Or CAS fails and returns the old value (atomic read) - */ - (void)__lockfree_compare_exchange_16(var, &old, old, false, mo, mo); - return old; -} - -#endif /* __aarch64__ */ - #endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_ATOMIC_H */ diff --git a/platform/linux-generic/arch/arm/odp_cpu.h b/platform/linux-generic/arch/arm/odp_cpu.h index 72c81020..d77c8521 100644 --- a/platform/linux-generic/arch/arm/odp_cpu.h +++ b/platform/linux-generic/arch/arm/odp_cpu.h @@ -9,7 +9,7 @@ #ifndef PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H #define PLATFORM_LINUXGENERIC_ARCH_ARM_ODP_CPU_H
-#if !defined(__arm__) && !defined(__aarch64__) +#if !defined(__arm__) #error Use this file only when compiling for ARM architecture #endif
@@ -38,34 +38,16 @@ * more scalable) and enables the CPU to enter a sleep state (lower power * consumption). */ -#ifdef __aarch64__ -#define CONFIG_WFE -#endif +/* #define CONFIG_WFE */
static inline void dmb(void) { __asm__ volatile("dmb" : : : "memory"); }
-#ifdef __aarch64__ - -/* Only ARMv8 supports DMB ISHLD */ -/* A load only barrier is much cheaper than full barrier */ -#define _odp_release_barrier(ro) \ -do { \ - if (ro) \ - __asm__ volatile("dmb ishld" ::: "memory"); \ - else \ - __asm__ volatile("dmb ish" ::: "memory"); \ -} while (0) - -#else - #define _odp_release_barrier(ro) \ __atomic_thread_fence(__ATOMIC_RELEASE)
-#endif /* __aarch64__ */ - #include "odp_llsc.h" #include "odp_atomic.h" #include "odp_cpu_idling.h" diff --git a/platform/linux-generic/arch/arm/odp_llsc.h b/platform/linux-generic/arch/arm/odp_llsc.h index 73c4d7b1..b53cedc2 100644 --- a/platform/linux-generic/arch/arm/odp_llsc.h +++ b/platform/linux-generic/arch/arm/odp_llsc.h @@ -13,8 +13,6 @@ #error This file should not be included directly, please include odp_cpu.h #endif
-#ifdef __arm__ - static inline uint32_t ll8(uint8_t *var, int mm) { uint8_t old; @@ -95,159 +93,4 @@ static inline uint32_t scd(uint64_t *var, uint64_t neu, int mm)
#define sc64(a, b, c) scd((a), (b), (c))
-#endif /* __arm__ */ - -#ifdef __aarch64__ - -static inline uint16_t ll8(uint8_t *var, int mm) -{ - uint16_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxrb %w0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxrb %w0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - ODP_ABORT(); - return old; -} - -static inline uint32_t ll32(uint32_t *var, int mm) -{ - uint32_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxr %w0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxr %w0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - ODP_ABORT(); - return old; -} - -/* Return 0 on success, 1 on failure */ -static inline uint32_t sc32(uint32_t *var, uint32_t neu, int mm) -{ - uint32_t ret; - - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxr %w0, %w1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxr %w0, %w1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - else - ODP_ABORT(); - return ret; -} - -static inline uint64_t ll(uint64_t *var, int mm) -{ - uint64_t old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxr %0, [%1]" - : "=&r" (old) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxr %0, [%1]" - : "=&r" (old) - : "r" (var) - : ); - else - ODP_ABORT(); - return old; -} - -#define ll64(a, b) ll((a), (b)) - -/* Return 0 on success, 1 on failure */ -static inline uint32_t sc(uint64_t *var, uint64_t neu, int mm) -{ - uint32_t ret; - - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxr %w0, %1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxr %w0, %1, [%2]" - : "=&r" (ret) - : "r" (neu), "r" (var) - : ); - else - ODP_ABORT(); - return ret; -} - -#define sc64(a, b, c) sc((a), (b), (c)) - -union i128 { - __int128 i128; - int64_t i64[2]; -}; - -static inline __int128 lld(__int128 *var, int mm) -{ - union i128 old; - - if (mm == __ATOMIC_ACQUIRE) - __asm__ volatile("ldaxp %0, %1, [%2]" - : "=&r" (old.i64[0]), "=&r" (old.i64[1]) - : "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("ldxp %0, %1, [%2]" - : "=&r" (old.i64[0]), "=&r" (old.i64[1]) - : "r" (var) - : ); - else - ODP_ABORT(); - return old.i128; -} - -/* Return 0 on success, 1 on failure */ -static inline uint32_t scd(__int128 *var, __int128 neu, int mm) -{ - uint32_t ret; - - if (mm == __ATOMIC_RELEASE) - __asm__ volatile("stlxp %w0, %1, %2, [%3]" - : "=&r" (ret) - : "r" (((union i128)neu).i64[0]), - "r" (((union i128)neu).i64[1]), - "r" (var) - : "memory"); - else if (mm == __ATOMIC_RELAXED) - __asm__ volatile("stxp %w0, %1, %2, [%3]" - : "=&r" (ret) - : "r" (((union i128)neu).i64[0]), - "r" (((union i128)neu).i64[1]), - "r" (var) - : ); - else - ODP_ABORT(); - return ret; -} - -#endif /* __aarch64__ */ - #endif /* PLATFORM_LINUXGENERIC_ARCH_ARM_LLSC_H */ diff --git a/platform/linux-generic/arch/mips64/odp_cpu.h b/platform/linux-generic/arch/mips64/odp_cpu.h deleted file mode 100644 index 1097f7bc..00000000 --- a/platform/linux-generic/arch/mips64/odp_cpu.h +++ /dev/null @@ -1,43 +0,0 @@ -/* Copyright (c) 2017, ARM Limited. All rights reserved. - * - * Copyright (c) 2017, Linaro Limited - * All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#ifndef ODP_MIPS64_CPU_H_ -#define ODP_MIPS64_CPU_H_ - -/****************************************************************************** - * Atomics - *****************************************************************************/ - -#define atomic_store_release(loc, val, ro) \ - __atomic_store_n(loc, val, __ATOMIC_RELEASE) - -/****************************************************************************** - * Idle mgmt - *****************************************************************************/ - -static inline void sevl(void) -{ - /* empty */ -} - -static inline int wfe(void) -{ - return 1; -} - -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) - -static inline void doze(void) -{ - odp_cpu_pause(); -} - -#endif diff --git a/platform/linux-generic/arch/powerpc/odp_cpu.h b/platform/linux-generic/arch/powerpc/odp_cpu.h deleted file mode 100644 index cd27fe24..00000000 --- a/platform/linux-generic/arch/powerpc/odp_cpu.h +++ /dev/null @@ -1,43 +0,0 @@ -/* Copyright (c) 2017, ARM Limited. All rights reserved. - * - * Copyright (c) 2017, Linaro Limited - * All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#ifndef ODP_POWERPC_CPU_H_ -#define ODP_POWERPC_CPU_H_ - -/****************************************************************************** - * Atomics - *****************************************************************************/ - -#define atomic_store_release(loc, val, ro) \ - __atomic_store_n(loc, val, __ATOMIC_RELEASE) - -/****************************************************************************** - * Idle mgmt - *****************************************************************************/ - -static inline void sevl(void) -{ - /* empty */ -} - -static inline int wfe(void) -{ - return 1; -} - -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) - -static inline void doze(void) -{ - odp_cpu_pause(); -} - -#endif diff --git a/platform/linux-generic/arch/x86/odp_cpu.h b/platform/linux-generic/arch/x86/odp_cpu.h deleted file mode 100644 index b5c89409..00000000 --- a/platform/linux-generic/arch/x86/odp_cpu.h +++ /dev/null @@ -1,43 +0,0 @@ -/* Copyright (c) 2017, ARM Limited. All rights reserved. - * - * Copyright (c) 2017, Linaro Limited - * All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#ifndef ODP_X86_CPU_H_ -#define ODP_X86_CPU_H_ - -/****************************************************************************** - * Atomics - *****************************************************************************/ - -#define atomic_store_release(loc, val, ro) \ - __atomic_store_n(loc, val, __ATOMIC_RELEASE) - -/****************************************************************************** - * Idle mgmt - *****************************************************************************/ - -static inline void sevl(void) -{ - /* empty */ -} - -static inline int wfe(void) -{ - return 1; -} - -#define monitor128(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor64(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor32(addr, mo) __atomic_load_n((addr), (mo)) -#define monitor8(addr, mo) __atomic_load_n((addr), (mo)) - -static inline void doze(void) -{ - odp_cpu_pause(); -} - -#endif
commit 8f63377237e1f783f77c2baf94922f07bcb24a55 Merge: 75cfc6f7 52cfe7ba Author: Maxim Uvarov maxim.uvarov@linaro.org Date: Thu Oct 5 09:36:38 2017 +0300
Merge branch 'master' into api-next
-----------------------------------------------------------------------
Summary of changes: .travis.yml | 2 +- platform/linux-generic/Makefile.am | 33 ++-- .../arch/{arm => aarch64}/odp_atomic.h | 4 - .../linux-generic/arch/{arm => aarch64}/odp_cpu.h | 15 +- .../arch/{arm => aarch64}/odp_cpu_idling.h | 20 +-- .../linux-generic/arch/{arm => aarch64}/odp_llsc.h | 88 ---------- platform/linux-generic/arch/arm/odp_atomic.h | 181 --------------------- platform/linux-generic/arch/arm/odp_cpu.h | 22 +-- platform/linux-generic/arch/arm/odp_cpu_idling.h | 20 +-- platform/linux-generic/arch/arm/odp_llsc.h | 157 ------------------ platform/linux-generic/arch/default/odp_cpu.h | 24 +-- .../{x86/odp_cpu.h => default/odp_cpu_idling.h} | 11 +- platform/linux-generic/arch/mips64/odp_cpu.h | 43 ----- platform/linux-generic/arch/powerpc/odp_cpu.h | 43 ----- 14 files changed, 39 insertions(+), 624 deletions(-) copy platform/linux-generic/arch/{arm => aarch64}/odp_atomic.h (99%) copy platform/linux-generic/arch/{arm => aarch64}/odp_cpu.h (85%) copy platform/linux-generic/arch/{arm => aarch64}/odp_cpu_idling.h (74%) copy platform/linux-generic/arch/{arm => aarch64}/odp_llsc.h (68%) rename platform/linux-generic/arch/{x86/odp_cpu.h => default/odp_cpu_idling.h} (70%) delete mode 100644 platform/linux-generic/arch/mips64/odp_cpu.h delete mode 100644 platform/linux-generic/arch/powerpc/odp_cpu.h
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