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MIPS: asm: bitops: Update ISA constraints for MIPS R6 support 

MIPS R6 changed the opcodes for LL/SC instructions so we need to set
the correct ISA level.

Cc: Matthew Fortune <Matthew.Fortune@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
hifive-unleashed-5.1
Markos Chandras 2014-11-20 13:58:30 +00:00
parent 0038df2240
commit 87a927eff4
1 changed files with 15 additions and 15 deletions
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30
arch/mips/include/asm/bitops.h
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@ -81,7 +81,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
" .set mips0 \n"
: "=&r" (temp), "=" GCC_OFF_SMALL_ASM() (*m)
: "ir" (1UL << bit), GCC_OFF_SMALL_ASM() (*m));
#ifdef CONFIG_CPU_MIPSR2
#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
do {
__asm__ __volatile__(
@ -91,11 +91,11 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
: "ir" (bit), "r" (~0));
} while (unlikely(!temp));
#endif /* CONFIG_CPU_MIPSR2 */
#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
} else if (kernel_uses_llsc) {
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # set_bit \n"
" or %0, %2 \n"
" " __SC "%0, %1 \n"
@ -133,7 +133,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
" .set mips0 \n"
: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
: "ir" (~(1UL << bit)));
#ifdef CONFIG_CPU_MIPSR2
#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
do {
__asm__ __volatile__(
@ -143,11 +143,11 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
: "ir" (bit));
} while (unlikely(!temp));
#endif /* CONFIG_CPU_MIPSR2 */
#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
} else if (kernel_uses_llsc) {
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # clear_bit \n"
" and %0, %2 \n"
" " __SC "%0, %1 \n"
@ -205,7 +205,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # change_bit \n"
" xor %0, %2 \n"
" " __SC "%0, %1 \n"
@ -254,7 +254,7 @@ static inline int test_and_set_bit(unsigned long nr,
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # test_and_set_bit \n"
" or %2, %0, %3 \n"
" " __SC "%2, %1 \n"
@ -308,7 +308,7 @@ static inline int test_and_set_bit_lock(unsigned long nr,
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # test_and_set_bit \n"
" or %2, %0, %3 \n"
" " __SC "%2, %1 \n"
@ -358,7 +358,7 @@ static inline int test_and_clear_bit(unsigned long nr,
: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
: "r" (1UL << bit)
: "memory");
#ifdef CONFIG_CPU_MIPSR2
#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
} else if (kernel_uses_llsc && __builtin_constant_p(nr)) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
@ -380,7 +380,7 @@ static inline int test_and_clear_bit(unsigned long nr,
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # test_and_clear_bit \n"
" or %2, %0, %3 \n"
" xor %2, %3 \n"
@ -437,7 +437,7 @@ static inline int test_and_change_bit(unsigned long nr,
do {
__asm__ __volatile__(
" .set arch=r4000 \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" " __LL "%0, %1 # test_and_change_bit \n"
" xor %2, %0, %3 \n"
" " __SC "\t%2, %1 \n"
@ -485,7 +485,7 @@ static inline unsigned long __fls(unsigned long word)
__builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
__asm__(
" .set push \n"
" .set mips32 \n"
" .set "MIPS_ISA_LEVEL" \n"
" clz %0, %1 \n"
" .set pop \n"
: "=r" (num)
@ -498,7 +498,7 @@ static inline unsigned long __fls(unsigned long word)
__builtin_constant_p(cpu_has_mips64) && cpu_has_mips64) {
__asm__(
" .set push \n"
" .set mips64 \n"
" .set "MIPS_ISA_LEVEL" \n"
" dclz %0, %1 \n"
" .set pop \n"
: "=r" (num)
@ -562,7 +562,7 @@ static inline int fls(int x)
if (__builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
__asm__(
" .set push \n"
" .set mips32 \n"
" .set "MIPS_ISA_LEVEL" \n"
" clz %0, %1 \n"
" .set pop \n"
: "=r" (x)