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Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

Browse source 
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] IP27: Build fix
  [MIPS] Wire up ioprio_set and ioprio_get.
  [MIPS] Fix __raw_read_trylock() to allow multiple readers
  [MIPS] Export __copy_user_inatomic.
  [MIPS] R2 bitops compile fix for gcc < 4.0.
  [MIPS] TX39: Remove redundant tx39_blast_icache() calls
  [MIPS] Cobalt: Fix early printk
  [MIPS] SMTC: De-obscure Malta hooks.
  [MIPS] SMTC: Add fordward declarations for mm_struct and task_struct.
  [MIPS] SMTC: <asm/mips_mt.h> must include <linux/cpumask.h>
  [MIPS] SMTC: <asm/smtc_ipi.h> must include <linux/spinlock.h>
  [MIPS] Atlas, Malta: Fix build warning.
This commit is contained in:
Linus Torvalds 2007-03-06 18:02:46 -08:00
commit 185d84b4e1
20 changed files with 84 additions and 87 deletions
Download patch file Download diff file Expand all files Collapse all files

56
include/asm-mips/bitops.h
View file

@ -54,6 +54,7 @@
static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned short bit = nr & SZLONG_MASK;
unsigned long temp;
if (cpu_has_llsc && R10000_LLSC_WAR) {
@ -65,9 +66,9 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
" beqzl %0, 1b \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
: "ir" (1UL << bit), "m" (*m));
#ifdef CONFIG_CPU_MIPSR2
} else if (__builtin_constant_p(nr)) {
} else if (__builtin_constant_p(bit)) {
__asm__ __volatile__(
"1: " __LL "%0, %1 # set_bit \n"
" " __INS "%0, %4, %2, 1 \n"
@ -77,7 +78,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
"2: b 1b \n"
" .previous \n"
: "=&r" (temp), "=m" (*m)
: "ir" (nr & SZLONG_MASK), "m" (*m), "r" (~0));
: "ir" (bit), "m" (*m), "r" (~0));
#endif /* CONFIG_CPU_MIPSR2 */
} else if (cpu_has_llsc) {
__asm__ __volatile__(
@ -91,14 +92,14 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
" .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
: "ir" (1UL << bit), "m" (*m));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
*a |= mask;
local_irq_restore(flags);
@ -118,6 +119,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned short bit = nr & SZLONG_MASK;
unsigned long temp;
if (cpu_has_llsc && R10000_LLSC_WAR) {
@ -129,9 +131,9 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
" beqzl %0, 1b \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (~(1UL << (nr & SZLONG_MASK))), "m" (*m));
: "ir" (~(1UL << bit)), "m" (*m));
#ifdef CONFIG_CPU_MIPSR2
} else if (__builtin_constant_p(nr)) {
} else if (__builtin_constant_p(bit)) {
__asm__ __volatile__(
"1: " __LL "%0, %1 # clear_bit \n"
" " __INS "%0, $0, %2, 1 \n"
@ -141,7 +143,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
"2: b 1b \n"
" .previous \n"
: "=&r" (temp), "=m" (*m)
: "ir" (nr & SZLONG_MASK), "m" (*m));
: "ir" (bit), "m" (*m));
#endif /* CONFIG_CPU_MIPSR2 */
} else if (cpu_has_llsc) {
__asm__ __volatile__(
@ -155,14 +157,14 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
" .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (~(1UL << (nr & SZLONG_MASK))), "m" (*m));
: "ir" (~(1UL << bit)), "m" (*m));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
*a &= ~mask;
local_irq_restore(flags);
@ -180,6 +182,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
*/
static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned short bit = nr & SZLONG_MASK;
if (cpu_has_llsc && R10000_LLSC_WAR) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
@ -192,7 +196,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
" beqzl %0, 1b \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
: "ir" (1UL << bit), "m" (*m));
} else if (cpu_has_llsc) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp;
@ -208,14 +212,14 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
" .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m)
: "ir" (1UL << (nr & SZLONG_MASK)), "m" (*m));
: "ir" (1UL << bit), "m" (*m));
} else {
volatile unsigned long *a = addr;
unsigned long mask;
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
*a ^= mask;
local_irq_restore(flags);
@ -233,6 +237,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
static inline int test_and_set_bit(unsigned long nr,
volatile unsigned long *addr)
{
unsigned short bit = nr & SZLONG_MASK;
if (cpu_has_llsc && R10000_LLSC_WAR) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp, res;
@ -246,7 +252,7 @@ static inline int test_and_set_bit(unsigned long nr,
" and %2, %0, %3 \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -269,7 +275,7 @@ static inline int test_and_set_bit(unsigned long nr,
" .previous \n"
" .set pop \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -280,7 +286,7 @@ static inline int test_and_set_bit(unsigned long nr,
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
retval = (mask & *a) != 0;
*a |= mask;
@ -303,6 +309,8 @@ static inline int test_and_set_bit(unsigned long nr,
static inline int test_and_clear_bit(unsigned long nr,
volatile unsigned long *addr)
{
unsigned short bit = nr & SZLONG_MASK;
if (cpu_has_llsc && R10000_LLSC_WAR) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp, res;
@ -317,7 +325,7 @@ static inline int test_and_clear_bit(unsigned long nr,
" and %2, %0, %3 \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -336,7 +344,7 @@ static inline int test_and_clear_bit(unsigned long nr,
"2: b 1b \n"
" .previous \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "ri" (nr & SZLONG_MASK), "m" (*m)
: "ri" (bit), "m" (*m)
: "memory");
return res;
@ -361,7 +369,7 @@ static inline int test_and_clear_bit(unsigned long nr,
" .previous \n"
" .set pop \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -372,7 +380,7 @@ static inline int test_and_clear_bit(unsigned long nr,
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
retval = (mask & *a) != 0;
*a &= ~mask;
@ -395,6 +403,8 @@ static inline int test_and_clear_bit(unsigned long nr,
static inline int test_and_change_bit(unsigned long nr,
volatile unsigned long *addr)
{
unsigned short bit = nr & SZLONG_MASK;
if (cpu_has_llsc && R10000_LLSC_WAR) {
unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
unsigned long temp, res;
@ -408,7 +418,7 @@ static inline int test_and_change_bit(unsigned long nr,
" and %2, %0, %3 \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -431,7 +441,7 @@ static inline int test_and_change_bit(unsigned long nr,
" .previous \n"
" .set pop \n"
: "=&r" (temp), "=m" (*m), "=&r" (res)
: "r" (1UL << (nr & SZLONG_MASK)), "m" (*m)
: "r" (1UL << bit), "m" (*m)
: "memory");
return res != 0;
@ -441,7 +451,7 @@ static inline int test_and_change_bit(unsigned long nr,
unsigned long flags;
a += nr >> SZLONG_LOG;
mask = 1UL << (nr & SZLONG_MASK);
mask = 1UL << bit;
local_irq_save(flags);
retval = (mask & *a) != 0;
*a ^= mask;

2
include/asm-mips/mips_mt.h
View file

@ -6,6 +6,8 @@
#ifndef __ASM_MIPS_MT_H
#define __ASM_MIPS_MT_H
#include <linux/cpumask.h>
extern cpumask_t mt_fpu_cpumask;
extern unsigned long mt_fpemul_threshold;

3
include/asm-mips/smtc.h
View file

@ -34,6 +34,9 @@ typedef long asiduse;
extern asiduse smtc_live_asid[MAX_SMTC_TLBS][MAX_SMTC_ASIDS];
struct mm_struct;
struct task_struct;
void smtc_get_new_mmu_context(struct mm_struct *mm, unsigned long cpu);
void smtc_flush_tlb_asid(unsigned long asid);

2
include/asm-mips/smtc_ipi.h
View file

@ -4,6 +4,8 @@
#ifndef __ASM_SMTC_IPI_H
#define __ASM_SMTC_IPI_H
#include <linux/spinlock.h>
//#define SMTC_IPI_DEBUG
#ifdef SMTC_IPI_DEBUG

4
include/asm-mips/spinlock.h
View file

@ -287,7 +287,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
" .set noreorder # __raw_read_trylock \n"
" li %2, 0 \n"
"1: ll %1, %3 \n"
" bnez %1, 2f \n"
" bltz %1, 2f \n"
" addu %1, 1 \n"
" sc %1, %0 \n"
" .set reorder \n"
@ -304,7 +304,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *rw)
" .set noreorder # __raw_read_trylock \n"
" li %2, 0 \n"
"1: ll %1, %3 \n"
" bnez %1, 2f \n"
" bltz %1, 2f \n"
" addu %1, 1 \n"
" sc %1, %0 \n"
" beqz %1, 1b \n"

2
include/asm-mips/uaccess.h
View file

@ -435,6 +435,8 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
__cu_len; \
})
extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
#define __copy_to_user_inatomic(to,from,n) \
({ \
void __user *__cu_to; \

18
include/asm-mips/unistd.h
View file

@ -334,16 +334,18 @@
#define __NR_kexec_load (__NR_Linux + 311)
#define __NR_getcpu (__NR_Linux + 312)
#define __NR_epoll_pwait (__NR_Linux + 313)
#define __NR_ioprio_set (__NR_Linux + 314)
#define __NR_ioprio_get (__NR_Linux + 315)
/*
* Offset of the last Linux o32 flavoured syscall
*/
#define __NR_Linux_syscalls 313
#define __NR_Linux_syscalls 315
#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
#define __NR_O32_Linux 4000
#define __NR_O32_Linux_syscalls 313
#define __NR_O32_Linux_syscalls 315
#if _MIPS_SIM == _MIPS_SIM_ABI64
@ -624,16 +626,18 @@
#define __NR_kexec_load (__NR_Linux + 270)
#define __NR_getcpu (__NR_Linux + 271)
#define __NR_epoll_pwait (__NR_Linux + 272)
#define __NR_ioprio_set (__NR_Linux + 273)
#define __NR_ioprio_get (__NR_Linux + 274)
/*
* Offset of the last Linux 64-bit flavoured syscall
*/
#define __NR_Linux_syscalls 272
#define __NR_Linux_syscalls 274
#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
#define __NR_64_Linux 5000
#define __NR_64_Linux_syscalls 272
#define __NR_64_Linux_syscalls 274
#if _MIPS_SIM == _MIPS_SIM_NABI32
@ -918,16 +922,18 @@
#define __NR_kexec_load (__NR_Linux + 274)
#define __NR_getcpu (__NR_Linux + 275)
#define __NR_epoll_pwait (__NR_Linux + 276)
#define __NR_ioprio_set (__NR_Linux + 277)
#define __NR_ioprio_get (__NR_Linux + 278)
/*
* Offset of the last N32 flavoured syscall
*/
#define __NR_Linux_syscalls 276
#define __NR_Linux_syscalls 278
#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
#define __NR_N32_Linux 6000
#define __NR_N32_Linux_syscalls 276
#define __NR_N32_Linux_syscalls 278
#ifdef __KERNEL__