diff options
Diffstat (limited to 'include/asm-generic')
-rw-r--r-- | include/asm-generic/atomic.h | 3 | ||||
-rw-r--r-- | include/asm-generic/bitops/atomic.h | 12 | ||||
-rw-r--r-- | include/asm-generic/bitops/lock.h | 8 | ||||
-rw-r--r-- | include/asm-generic/bugs.h | 11 | ||||
-rw-r--r-- | include/asm-generic/percpu.h | 201 | ||||
-rw-r--r-- | include/asm-generic/vmlinux.lds.h | 3 |
6 files changed, 165 insertions, 73 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index e271d6708c87..22142c71d35a 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -130,7 +130,4 @@ ATOMIC_OP(xor, ^) #define arch_atomic_read(v) READ_ONCE((v)->counter) #define arch_atomic_set(v, i) WRITE_ONCE(((v)->counter), (i)) -#define arch_atomic_xchg(ptr, v) (arch_xchg(&(ptr)->counter, (u32)(v))) -#define arch_atomic_cmpxchg(v, old, new) (arch_cmpxchg(&((v)->counter), (u32)(old), (u32)(new))) - #endif /* __ASM_GENERIC_ATOMIC_H */ diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h index 71ab4ba9c25d..e076e079f6b2 100644 --- a/include/asm-generic/bitops/atomic.h +++ b/include/asm-generic/bitops/atomic.h @@ -15,21 +15,21 @@ static __always_inline void arch_set_bit(unsigned int nr, volatile unsigned long *p) { p += BIT_WORD(nr); - arch_atomic_long_or(BIT_MASK(nr), (atomic_long_t *)p); + raw_atomic_long_or(BIT_MASK(nr), (atomic_long_t *)p); } static __always_inline void arch_clear_bit(unsigned int nr, volatile unsigned long *p) { p += BIT_WORD(nr); - arch_atomic_long_andnot(BIT_MASK(nr), (atomic_long_t *)p); + raw_atomic_long_andnot(BIT_MASK(nr), (atomic_long_t *)p); } static __always_inline void arch_change_bit(unsigned int nr, volatile unsigned long *p) { p += BIT_WORD(nr); - arch_atomic_long_xor(BIT_MASK(nr), (atomic_long_t *)p); + raw_atomic_long_xor(BIT_MASK(nr), (atomic_long_t *)p); } static __always_inline int @@ -39,7 +39,7 @@ arch_test_and_set_bit(unsigned int nr, volatile unsigned long *p) unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); - old = arch_atomic_long_fetch_or(mask, (atomic_long_t *)p); + old = raw_atomic_long_fetch_or(mask, (atomic_long_t *)p); return !!(old & mask); } @@ -50,7 +50,7 @@ arch_test_and_clear_bit(unsigned int nr, volatile unsigned long *p) unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); - old = arch_atomic_long_fetch_andnot(mask, (atomic_long_t *)p); + old = raw_atomic_long_fetch_andnot(mask, (atomic_long_t *)p); return !!(old & mask); } @@ -61,7 +61,7 @@ arch_test_and_change_bit(unsigned int nr, volatile unsigned long *p) unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); - old = arch_atomic_long_fetch_xor(mask, (atomic_long_t *)p); + old = raw_atomic_long_fetch_xor(mask, (atomic_long_t *)p); return !!(old & mask); } diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h index 630f2f6b9595..40913516e654 100644 --- a/include/asm-generic/bitops/lock.h +++ b/include/asm-generic/bitops/lock.h @@ -25,7 +25,7 @@ arch_test_and_set_bit_lock(unsigned int nr, volatile unsigned long *p) if (READ_ONCE(*p) & mask) return 1; - old = arch_atomic_long_fetch_or_acquire(mask, (atomic_long_t *)p); + old = raw_atomic_long_fetch_or_acquire(mask, (atomic_long_t *)p); return !!(old & mask); } @@ -41,7 +41,7 @@ static __always_inline void arch_clear_bit_unlock(unsigned int nr, volatile unsigned long *p) { p += BIT_WORD(nr); - arch_atomic_long_fetch_andnot_release(BIT_MASK(nr), (atomic_long_t *)p); + raw_atomic_long_fetch_andnot_release(BIT_MASK(nr), (atomic_long_t *)p); } /** @@ -63,7 +63,7 @@ arch___clear_bit_unlock(unsigned int nr, volatile unsigned long *p) p += BIT_WORD(nr); old = READ_ONCE(*p); old &= ~BIT_MASK(nr); - arch_atomic_long_set_release((atomic_long_t *)p, old); + raw_atomic_long_set_release((atomic_long_t *)p, old); } /** @@ -83,7 +83,7 @@ static inline bool arch_clear_bit_unlock_is_negative_byte(unsigned int nr, unsigned long mask = BIT_MASK(nr); p += BIT_WORD(nr); - old = arch_atomic_long_fetch_andnot_release(mask, (atomic_long_t *)p); + old = raw_atomic_long_fetch_andnot_release(mask, (atomic_long_t *)p); return !!(old & BIT(7)); } #define arch_clear_bit_unlock_is_negative_byte arch_clear_bit_unlock_is_negative_byte diff --git a/include/asm-generic/bugs.h b/include/asm-generic/bugs.h deleted file mode 100644 index 69021830f078..000000000000 --- a/include/asm-generic/bugs.h +++ /dev/null @@ -1,11 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_GENERIC_BUGS_H -#define __ASM_GENERIC_BUGS_H -/* - * This file is included by 'init/main.c' to check for - * architecture-dependent bugs. - */ - -static inline void check_bugs(void) { } - -#endif /* __ASM_GENERIC_BUGS_H */ diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index 6432a7fade91..94cbd50cc870 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -89,27 +89,35 @@ do { \ __ret; \ }) -#define raw_cpu_generic_cmpxchg(pcp, oval, nval) \ +#define __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, _cmpxchg) \ +({ \ + typeof(pcp) __val, __old = *(ovalp); \ + __val = _cmpxchg(pcp, __old, nval); \ + if (__val != __old) \ + *(ovalp) = __val; \ + __val == __old; \ +}) + +#define raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ ({ \ typeof(pcp) *__p = raw_cpu_ptr(&(pcp)); \ - typeof(pcp) __ret; \ - __ret = *__p; \ - if (__ret == (oval)) \ + typeof(pcp) __val = *__p, ___old = *(ovalp); \ + bool __ret; \ + if (__val == ___old) { \ *__p = nval; \ + __ret = true; \ + } else { \ + *(ovalp) = __val; \ + __ret = false; \ + } \ __ret; \ }) -#define raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ +#define raw_cpu_generic_cmpxchg(pcp, oval, nval) \ ({ \ - typeof(pcp1) *__p1 = raw_cpu_ptr(&(pcp1)); \ - typeof(pcp2) *__p2 = raw_cpu_ptr(&(pcp2)); \ - int __ret = 0; \ - if (*__p1 == (oval1) && *__p2 == (oval2)) { \ - *__p1 = nval1; \ - *__p2 = nval2; \ - __ret = 1; \ - } \ - (__ret); \ + typeof(pcp) __old = (oval); \ + raw_cpu_generic_try_cmpxchg(pcp, &__old, nval); \ + __old; \ }) #define __this_cpu_generic_read_nopreempt(pcp) \ @@ -170,23 +178,22 @@ do { \ __ret; \ }) -#define this_cpu_generic_cmpxchg(pcp, oval, nval) \ +#define this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ ({ \ - typeof(pcp) __ret; \ + bool __ret; \ unsigned long __flags; \ raw_local_irq_save(__flags); \ - __ret = raw_cpu_generic_cmpxchg(pcp, oval, nval); \ + __ret = raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval); \ raw_local_irq_restore(__flags); \ __ret; \ }) -#define this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \ +#define this_cpu_generic_cmpxchg(pcp, oval, nval) \ ({ \ - int __ret; \ + typeof(pcp) __ret; \ unsigned long __flags; \ raw_local_irq_save(__flags); \ - __ret = raw_cpu_generic_cmpxchg_double(pcp1, pcp2, \ - oval1, oval2, nval1, nval2); \ + __ret = raw_cpu_generic_cmpxchg(pcp, oval, nval); \ raw_local_irq_restore(__flags); \ __ret; \ }) @@ -282,6 +289,62 @@ do { \ #define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval) #endif +#ifndef raw_cpu_try_cmpxchg_1 +#ifdef raw_cpu_cmpxchg_1 +#define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_1) +#else +#define raw_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_2 +#ifdef raw_cpu_cmpxchg_2 +#define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_2) +#else +#define raw_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_4 +#ifdef raw_cpu_cmpxchg_4 +#define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_4) +#else +#define raw_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg_8 +#ifdef raw_cpu_cmpxchg_8 +#define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg_8) +#else +#define raw_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + +#ifndef raw_cpu_try_cmpxchg64 +#ifdef raw_cpu_cmpxchg64 +#define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg64) +#else +#define raw_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef raw_cpu_try_cmpxchg128 +#ifdef raw_cpu_cmpxchg128 +#define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, raw_cpu_cmpxchg128) +#else +#define raw_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + #ifndef raw_cpu_cmpxchg_1 #define raw_cpu_cmpxchg_1(pcp, oval, nval) \ raw_cpu_generic_cmpxchg(pcp, oval, nval) @@ -299,21 +362,13 @@ do { \ raw_cpu_generic_cmpxchg(pcp, oval, nval) #endif -#ifndef raw_cpu_cmpxchg_double_1 -#define raw_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -#endif -#ifndef raw_cpu_cmpxchg_double_2 -#define raw_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -#endif -#ifndef raw_cpu_cmpxchg_double_4 -#define raw_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) +#ifndef raw_cpu_cmpxchg64 +#define raw_cpu_cmpxchg64(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) #endif -#ifndef raw_cpu_cmpxchg_double_8 -#define raw_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) +#ifndef raw_cpu_cmpxchg128 +#define raw_cpu_cmpxchg128(pcp, oval, nval) \ + raw_cpu_generic_cmpxchg(pcp, oval, nval) #endif #ifndef this_cpu_read_1 @@ -407,6 +462,62 @@ do { \ #define this_cpu_xchg_8(pcp, nval) this_cpu_generic_xchg(pcp, nval) #endif +#ifndef this_cpu_try_cmpxchg_1 +#ifdef this_cpu_cmpxchg_1 +#define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_1) +#else +#define this_cpu_try_cmpxchg_1(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_2 +#ifdef this_cpu_cmpxchg_2 +#define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_2) +#else +#define this_cpu_try_cmpxchg_2(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_4 +#ifdef this_cpu_cmpxchg_4 +#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_4) +#else +#define this_cpu_try_cmpxchg_4(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg_8 +#ifdef this_cpu_cmpxchg_8 +#define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg_8) +#else +#define this_cpu_try_cmpxchg_8(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + +#ifndef this_cpu_try_cmpxchg64 +#ifdef this_cpu_cmpxchg64 +#define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg64) +#else +#define this_cpu_try_cmpxchg64(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif +#ifndef this_cpu_try_cmpxchg128 +#ifdef this_cpu_cmpxchg128 +#define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + __cpu_fallback_try_cmpxchg(pcp, ovalp, nval, this_cpu_cmpxchg128) +#else +#define this_cpu_try_cmpxchg128(pcp, ovalp, nval) \ + this_cpu_generic_try_cmpxchg(pcp, ovalp, nval) +#endif +#endif + #ifndef this_cpu_cmpxchg_1 #define this_cpu_cmpxchg_1(pcp, oval, nval) \ this_cpu_generic_cmpxchg(pcp, oval, nval) @@ -424,21 +535,13 @@ do { \ this_cpu_generic_cmpxchg(pcp, oval, nval) #endif -#ifndef this_cpu_cmpxchg_double_1 -#define this_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -#endif -#ifndef this_cpu_cmpxchg_double_2 -#define this_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) -#endif -#ifndef this_cpu_cmpxchg_double_4 -#define this_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) +#ifndef this_cpu_cmpxchg64 +#define this_cpu_cmpxchg64(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) #endif -#ifndef this_cpu_cmpxchg_double_8 -#define this_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \ - this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) +#ifndef this_cpu_cmpxchg128 +#define this_cpu_cmpxchg128(pcp, oval, nval) \ + this_cpu_generic_cmpxchg(pcp, oval, nval) #endif #endif /* _ASM_GENERIC_PERCPU_H_ */ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index cebdf1ca415d..da9e5629ea43 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -839,6 +839,9 @@ #ifdef CONFIG_UNWINDER_ORC #define ORC_UNWIND_TABLE \ + .orc_header : AT(ADDR(.orc_header) - LOAD_OFFSET) { \ + BOUNDED_SECTION_BY(.orc_header, _orc_header) \ + } \ . = ALIGN(4); \ .orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) { \ BOUNDED_SECTION_BY(.orc_unwind_ip, _orc_unwind_ip) \ |