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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-07 17:52:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-07 17:52:35 -0700
commit4e23eeebb2e57f5a28b36221aa776b5a1122dde5 (patch)
treef8376df9b40f35576533e830f8c2a1b7e981c160 /arch/sh
parent3bc1bc0b59d04e997db25b84babf459ca1cd80b7 (diff)
parent36d4b36b69590fed99356a4426c940a253a93800 (diff)
Merge tag 'bitmap-6.0-rc1' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov: - fix the duplicated comments on bitmap_to_arr64() (Qu Wenruo) - optimize out non-atomic bitops on compile-time constants (Alexander Lobakin) - cleanup bitmap-related headers (Yury Norov) - x86/olpc: fix 'logical not is only applied to the left hand side' (Alexander Lobakin) - lib/nodemask: inline wrappers around bitmap (Yury Norov) * tag 'bitmap-6.0-rc1' of https://github.com/norov/linux: (26 commits) lib/nodemask: inline next_node_in() and node_random() powerpc: drop dependency on <asm/machdep.h> in archrandom.h x86/olpc: fix 'logical not is only applied to the left hand side' lib/cpumask: move some one-line wrappers to header file headers/deps: mm: align MANITAINERS and Docs with new gfp.h structure headers/deps: mm: Split <linux/gfp_types.h> out of <linux/gfp.h> headers/deps: mm: Optimize <linux/gfp.h> header dependencies lib/cpumask: move trivial wrappers around find_bit to the header lib/cpumask: change return types to unsigned where appropriate cpumask: change return types to bool where appropriate lib/bitmap: change type of bitmap_weight to unsigned long lib/bitmap: change return types to bool where appropriate arm: align find_bit declarations with generic kernel iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE) lib/test_bitmap: test the tail after bitmap_to_arr64() lib/bitmap: fix off-by-one in bitmap_to_arr64() lib: test_bitmap: add compile-time optimization/evaluations assertions bitmap: don't assume compiler evaluates small mem*() builtins calls net/ice: fix initializing the bitmap in the switch code bitops: let optimize out non-atomic bitops on compile-time constants ...
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/include/asm/bitops-op32.h34
1 files changed, 22 insertions, 12 deletions
diff --git a/arch/sh/include/asm/bitops-op32.h b/arch/sh/include/asm/bitops-op32.h
index cfe5465acce7..565a85d8b7fb 100644
--- a/arch/sh/include/asm/bitops-op32.h
+++ b/arch/sh/include/asm/bitops-op32.h
@@ -2,6 +2,8 @@
#ifndef __ASM_SH_BITOPS_OP32_H
#define __ASM_SH_BITOPS_OP32_H
+#include <linux/bits.h>
+
/*
* The bit modifying instructions on SH-2A are only capable of working
* with a 3-bit immediate, which signifies the shift position for the bit
@@ -16,7 +18,8 @@
#define BYTE_OFFSET(nr) ((nr) % BITS_PER_BYTE)
#endif
-static inline void __set_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___set_bit(unsigned long nr, volatile unsigned long *addr)
{
if (__builtin_constant_p(nr)) {
__asm__ __volatile__ (
@@ -33,7 +36,8 @@ static inline void __set_bit(int nr, volatile unsigned long *addr)
}
}
-static inline void __clear_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___clear_bit(unsigned long nr, volatile unsigned long *addr)
{
if (__builtin_constant_p(nr)) {
__asm__ __volatile__ (
@@ -52,7 +56,7 @@ static inline void __clear_bit(int nr, volatile unsigned long *addr)
}
/**
- * __change_bit - Toggle a bit in memory
+ * arch___change_bit - Toggle a bit in memory
* @nr: the bit to change
* @addr: the address to start counting from
*
@@ -60,7 +64,8 @@ static inline void __clear_bit(int nr, volatile unsigned long *addr)
* If it's called on the same region of memory simultaneously, the effect
* may be that only one operation succeeds.
*/
-static inline void __change_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___change_bit(unsigned long nr, volatile unsigned long *addr)
{
if (__builtin_constant_p(nr)) {
__asm__ __volatile__ (
@@ -79,7 +84,7 @@ static inline void __change_bit(int nr, volatile unsigned long *addr)
}
/**
- * __test_and_set_bit - Set a bit and return its old value
+ * arch___test_and_set_bit - Set a bit and return its old value
* @nr: Bit to set
* @addr: Address to count from
*
@@ -87,7 +92,8 @@ static inline void __change_bit(int nr, volatile unsigned long *addr)
* If two examples of this operation race, one can appear to succeed
* but actually fail. You must protect multiple accesses with a lock.
*/
-static inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch___test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
@@ -98,7 +104,7 @@ static inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
}
/**
- * __test_and_clear_bit - Clear a bit and return its old value
+ * arch___test_and_clear_bit - Clear a bit and return its old value
* @nr: Bit to clear
* @addr: Address to count from
*
@@ -106,7 +112,8 @@ static inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
* If two examples of this operation race, one can appear to succeed
* but actually fail. You must protect multiple accesses with a lock.
*/
-static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch___test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
@@ -117,8 +124,8 @@ static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
}
/* WARNING: non atomic and it can be reordered! */
-static inline int __test_and_change_bit(int nr,
- volatile unsigned long *addr)
+static __always_inline bool
+arch___test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
@@ -129,13 +136,16 @@ static inline int __test_and_change_bit(int nr,
}
/**
- * test_bit - Determine whether a bit is set
+ * arch_test_bit - Determine whether a bit is set
* @nr: bit number to test
* @addr: Address to start counting from
*/
-static inline int test_bit(int nr, const volatile unsigned long *addr)
+static __always_inline bool
+arch_test_bit(unsigned long nr, const volatile unsigned long *addr)
{
return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
}
+#include <asm-generic/bitops/non-instrumented-non-atomic.h>
+
#endif /* __ASM_SH_BITOPS_OP32_H */