diff options
Diffstat (limited to 'arch/mips')
32 files changed, 297 insertions, 184 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 52c80c2a57f..600eef3f3ac 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -351,7 +351,7 @@ config SGI_IP27 select ARC64 select BOOT_ELF64 select DEFAULT_SGI_PARTITION - select DMA_IP27 + select DMA_COHERENT select SYS_HAS_EARLY_PRINTK select HW_HAS_PCI select NR_CPUS_DEFAULT_64 @@ -761,9 +761,6 @@ config CFE config DMA_COHERENT bool -config DMA_IP27 - bool - config DMA_NONCOHERENT bool select DMA_NEED_PCI_MAP_STATE @@ -1368,7 +1365,7 @@ config CPU_SUPPORTS_64BIT_KERNEL # config HARDWARE_WATCHPOINTS bool - default y if CPU_MIPS32 || CPU_MIPS64 + default y if CPU_MIPSR1 || CPU_MIPSR2 menu "Kernel type" diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c index 32880146cbc..6fd441d16af 100644 --- a/arch/mips/alchemy/common/time.c +++ b/arch/mips/alchemy/common/time.c @@ -89,7 +89,7 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = { .irq = AU1000_RTC_MATCH2_INT, .set_next_event = au1x_rtcmatch2_set_next_event, .set_mode = au1x_rtcmatch2_set_mode, - .cpumask = CPU_MASK_ALL, + .cpumask = CPU_MASK_ALL_PTR, }; static struct irqaction au1x_rtcmatch2_irqaction = { diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index e085feddb4a..5f4e49ba471 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -15,13 +15,11 @@ #include <linux/serial.h> #include <linux/types.h> #include <linux/string.h> /* for memset */ -#include <linux/serial.h> #include <linux/tty.h> #include <linux/time.h> #include <linux/platform_device.h> #include <linux/serial_core.h> #include <linux/serial_8250.h> -#include <linux/string.h> #include <asm/processor.h> #include <asm/reboot.h> diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index a3bbbf067a3..783da855a2e 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -959,7 +959,7 @@ CONFIG_I2C_SIBYTE=y # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set -CONFIG_SENSORS_EEPROM=y +CONFIG_EEPROM_LEGACY=y CONFIG_SENSORS_PCF8574=y # CONFIG_PCF8575 is not set CONFIG_SENSORS_PCF8591=y diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig index 634bb4eaf13..fea9bc9865a 100644 --- a/arch/mips/configs/emma2rh_defconfig +++ b/arch/mips/configs/emma2rh_defconfig @@ -996,7 +996,7 @@ CONFIG_I2C_CHARDEV=y # # CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_DS1374 is not set -# CONFIG_SENSORS_EEPROM is not set +# CONFIG_EEPROM_LEGACY is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_SENSORS_PCA9539 is not set # CONFIG_SENSORS_PCF8591 is not set diff --git a/arch/mips/configs/fulong_defconfig b/arch/mips/configs/fulong_defconfig index b6698a232ae..786a9bc9a69 100644 --- a/arch/mips/configs/fulong_defconfig +++ b/arch/mips/configs/fulong_defconfig @@ -1006,8 +1006,8 @@ CONFIG_I2C_VIAPRO=m # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set -# CONFIG_AT24 is not set -# CONFIG_SENSORS_EEPROM is not set +# CONFIG_EEPROM_AT24 is not set +# CONFIG_EEPROM_LEGACY is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 34ea319be94..f2baea3039b 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig @@ -53,7 +53,7 @@ CONFIG_GENERIC_TIME=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_ARC=y -CONFIG_DMA_IP27=y +CONFIG_DMA_COHERENT=y CONFIG_EARLY_PRINTK=y CONFIG_SYS_HAS_EARLY_PRINTK=y # CONFIG_NO_IOPORT is not set diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig index dd13db4d0fb..84d6491b3d4 100644 --- a/arch/mips/configs/msp71xx_defconfig +++ b/arch/mips/configs/msp71xx_defconfig @@ -929,7 +929,7 @@ CONFIG_I2C_PMCMSP=y # # CONFIG_SENSORS_DS1337 is not set # CONFIG_SENSORS_DS1374 is not set -# CONFIG_SENSORS_EEPROM is not set +# CONFIG_EEPROM_LEGACY is not set # CONFIG_SENSORS_PCF8574 is not set CONFIG_PMCTWILED=y # CONFIG_SENSORS_PCA9539 is not set diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index db9272677aa..8426d3b9501 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -1845,7 +1845,7 @@ CONFIG_I2C_VOODOO3=m CONFIG_SENSORS_DS1337=m CONFIG_SENSORS_DS1374=m # CONFIG_DS1682 is not set -CONFIG_SENSORS_EEPROM=m +CONFIG_EEPROM_LEGACY=m CONFIG_SENSORS_PCF8574=m CONFIG_SENSORS_PCA9539=m CONFIG_SENSORS_PCF8591=m @@ -1872,7 +1872,7 @@ CONFIG_SPI_BUTTERFLY=m # # SPI Protocol Masters # -# CONFIG_SPI_AT25 is not set +# CONFIG_EEPROM_AT25 is not set # CONFIG_SPI_SPIDEV is not set # CONFIG_SPI_TLE62X0 is not set CONFIG_W1=m diff --git a/arch/mips/configs/pnx8335-stb225_defconfig b/arch/mips/configs/pnx8335-stb225_defconfig index d9536522cff..2728caa6c2f 100644 --- a/arch/mips/configs/pnx8335-stb225_defconfig +++ b/arch/mips/configs/pnx8335-stb225_defconfig @@ -640,8 +640,8 @@ CONFIG_I2C_CHARDEV=y # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set -# CONFIG_AT24 is not set -# CONFIG_SENSORS_EEPROM is not set +# CONFIG_EEPROM_AT24 is not set +# CONFIG_EEPROM_LEGACY is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set # CONFIG_SENSORS_PCA9539 is not set diff --git a/arch/mips/configs/rbtx49xx_defconfig b/arch/mips/configs/rbtx49xx_defconfig index c7c0864b8ce..83d5c58662c 100644 --- a/arch/mips/configs/rbtx49xx_defconfig +++ b/arch/mips/configs/rbtx49xx_defconfig @@ -522,7 +522,7 @@ CONFIG_SPI_TXX9=y # # SPI Protocol Masters # -CONFIG_SPI_AT25=y +CONFIG_EEPROM_AT25=y # CONFIG_SPI_TLE62X0 is not set CONFIG_HAVE_GPIO_LIB=y diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h index c996c3b4d07..1b332e15ab5 100644 --- a/arch/mips/include/asm/atomic.h +++ b/arch/mips/include/asm/atomic.h @@ -50,7 +50,7 @@ static __inline__ void atomic_add(int i, atomic_t * v) { if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -62,7 +62,7 @@ static __inline__ void atomic_add(int i, atomic_t * v) : "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter)); } else if (cpu_has_llsc) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -95,7 +95,7 @@ static __inline__ void atomic_add(int i, atomic_t * v) static __inline__ void atomic_sub(int i, atomic_t * v) { if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -107,7 +107,7 @@ static __inline__ void atomic_sub(int i, atomic_t * v) : "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter)); } else if (cpu_has_llsc) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -135,12 +135,12 @@ static __inline__ void atomic_sub(int i, atomic_t * v) */ static __inline__ int atomic_add_return(int i, atomic_t * v) { - unsigned long result; + int result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -154,7 +154,7 @@ static __inline__ int atomic_add_return(int i, atomic_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -187,12 +187,12 @@ static __inline__ int atomic_add_return(int i, atomic_t * v) static __inline__ int atomic_sub_return(int i, atomic_t * v) { - unsigned long result; + int result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -206,7 +206,7 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -247,12 +247,12 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v) */ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) { - unsigned long result; + int result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -270,7 +270,7 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + int temp; __asm__ __volatile__( " .set mips3 \n" @@ -429,7 +429,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) static __inline__ void atomic64_add(long i, atomic64_t * v) { if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -441,7 +441,7 @@ static __inline__ void atomic64_add(long i, atomic64_t * v) : "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter)); } else if (cpu_has_llsc) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -474,7 +474,7 @@ static __inline__ void atomic64_add(long i, atomic64_t * v) static __inline__ void atomic64_sub(long i, atomic64_t * v) { if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -486,7 +486,7 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v) : "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter)); } else if (cpu_has_llsc) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -514,12 +514,12 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v) */ static __inline__ long atomic64_add_return(long i, atomic64_t * v) { - unsigned long result; + long result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -533,7 +533,7 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -566,12 +566,12 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v) static __inline__ long atomic64_sub_return(long i, atomic64_t * v) { - unsigned long result; + long result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -585,7 +585,7 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -626,12 +626,12 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v) */ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v) { - unsigned long result; + long result; smp_llsc_mb(); if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" @@ -649,7 +649,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v) : "Ir" (i), "m" (v->counter) : "memory"); } else if (cpu_has_llsc) { - unsigned long temp; + long temp; __asm__ __volatile__( " .set mips3 \n" diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h index b5cf6457305..3cb50d17b62 100644 --- a/arch/mips/include/asm/mach-rc32434/gpio.h +++ b/arch/mips/include/asm/mach-rc32434/gpio.h @@ -80,11 +80,8 @@ struct rb532_gpio_reg { /* Compact Flash GPIO pin */ #define CF_GPIO_NUM 13 -extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned val); -extern unsigned get_434_reg(unsigned reg_offs); -extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask); -extern unsigned char get_latch_u5(void); extern void rb532_gpio_set_ilevel(int bit, unsigned gpio); extern void rb532_gpio_set_istat(int bit, unsigned gpio); +extern void rb532_gpio_set_func(unsigned gpio); #endif /* _RC32434_GPIO_H_ */ diff --git a/arch/mips/include/asm/mach-rc32434/irq.h b/arch/mips/include/asm/mach-rc32434/irq.h index 56738d8ec4e..023a5b100ed 100644 --- a/arch/mips/include/asm/mach-rc32434/irq.h +++ b/arch/mips/include/asm/mach-rc32434/irq.h @@ -30,4 +30,7 @@ #define ETH0_RX_OVR_IRQ (GROUP3_IRQ_BASE + 9) #define ETH0_TX_UND_IRQ (GROUP3_IRQ_BASE + 10) +#define GPIO_MAPPED_IRQ_BASE GROUP4_IRQ_BASE +#define GPIO_MAPPED_IRQ_GROUP 4 + #endif /* __ASM_RC32434_IRQ_H */ diff --git a/arch/mips/include/asm/mach-rc32434/rb.h b/arch/mips/include/asm/mach-rc32434/rb.h index f25a8491670..6dc5f8df1f3 100644 --- a/arch/mips/include/asm/mach-rc32434/rb.h +++ b/arch/mips/include/asm/mach-rc32434/rb.h @@ -83,4 +83,7 @@ struct mpmc_device { void __iomem *base; }; +extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask); +extern unsigned char get_latch_u5(void); + #endif /* __ASM_RC32434_RB_H */ diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h index 1f30d16d466..ce47118e52b 100644 --- a/arch/mips/include/asm/ptrace.h +++ b/arch/mips/include/asm/ptrace.h @@ -105,7 +105,7 @@ struct pt_watch_regs { enum pt_watch_style style; union { struct mips32_watch_regs mips32; - struct mips32_watch_regs mips64; + struct mips64_watch_regs mips64; }; }; diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h index a275661fa7e..8f77f774a2a 100644 --- a/arch/mips/include/asm/termios.h +++ b/arch/mips/include/asm/termios.h @@ -9,6 +9,7 @@ #ifndef _ASM_TERMIOS_H #define _ASM_TERMIOS_H +#include <linux/errno.h> #include <asm/termbits.h> #include <asm/ioctls.h> @@ -94,38 +95,81 @@ struct termio { /* * Translate a "termio" structure into a "termios". Ugh. */ -#define user_termio_to_kernel_termios(termios, termio) \ -({ \ - unsigned short tmp; \ - get_user(tmp, &(termio)->c_iflag); \ - (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ - get_user(tmp, &(termio)->c_oflag); \ - (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ - get_user(tmp, &(termio)->c_cflag); \ - (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ - get_user(tmp, &(termio)->c_lflag); \ - (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ - get_user((termios)->c_line, &(termio)->c_line); \ - copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ -}) +static inline int user_termio_to_kernel_termios(struct ktermios *termios, + struct termio __user *termio) +{ + unsigned short iflag, oflag, cflag, lflag; + unsigned int err; + + if (!access_ok(VERIFY_READ, termio, sizeof(struct termio))) + return -EFAULT; + + err = __get_user(iflag, &termio->c_iflag); + termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag; + err |=__get_user(oflag, &termio->c_oflag); + termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag; + err |=__get_user(cflag, &termio->c_cflag); + termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag; + err |=__get_user(lflag, &termio->c_lflag); + termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag; + err |=__get_user(termios->c_line, &termio->c_line); + if (err) + return -EFAULT; + + if (__copy_from_user(termios->c_cc, termio->c_cc, NCC)) + return -EFAULT; + + return 0; +} /* * Translate a "termios" structure into a "termio". Ugh. */ -#define kernel_termios_to_user_termio(termio, termios) \ -({ \ - put_user((termios)->c_iflag, &(termio)->c_iflag); \ - put_user((termios)->c_oflag, &(termio)->c_oflag); \ - put_user((termios)->c_cflag, &(termio)->c_cflag); \ - put_user((termios)->c_lflag, &(termio)->c_lflag); \ - put_user((termios)->c_line, &(termio)->c_line); \ - copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ -}) - -#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2)) -#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2)) -#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) -#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) +static inline int kernel_termios_to_user_termio(struct termio __user *termio, + struct ktermios *termios) +{ + int err; + + if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio))) + return -EFAULT; + + err = __put_user(termios->c_iflag, &termio->c_iflag); + err |= __put_user(termios->c_oflag, &termio->c_oflag); + err |= __put_user(termios->c_cflag, &termio->c_cflag); + err |= __put_user(termios->c_lflag, &termio->c_lflag); + err |= __put_user(termios->c_line, &termio->c_line); + if (err) + return -EFAULT; + + if (__copy_to_user(termio->c_cc, termios->c_cc, NCC)) + return -EFAULT; + + return 0; +} + +static inline int user_termios_to_kernel_termios(struct ktermios __user *k, + struct termios2 *u) +{ + return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0; +} + +static inline int kernel_termios_to_user_termios(struct termios2 __user *u, + struct ktermios *k) +{ + return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0; +} + +static inline int user_termios_to_kernel_termios_1(struct ktermios *k, + struct termios __user *u) +{ + return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0; +} + +static inline int kernel_termios_to_user_termios_1(struct termios __user *u, + struct ktermios *k) +{ + return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0; +} #endif /* defined(__KERNEL__) */ diff --git a/arch/mips/include/asm/txx9/tx4939.h b/arch/mips/include/asm/txx9/tx4939.h index 88badb42301..964ef7ede26 100644 --- a/arch/mips/include/asm/txx9/tx4939.h +++ b/arch/mips/include/asm/txx9/tx4939.h @@ -541,5 +541,6 @@ void tx4939_irq_init(void); int tx4939_irq(void); void tx4939_mtd_init(int ch); void tx4939_ata_init(void); +void tx4939_rtc_init(void); #endif /* __ASM_TXX9_TX4939_H */ diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index fb6f73148df..8882e5766f2 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -458,7 +458,11 @@ NESTED(nmi_handler, PT_SIZE, sp) BUILD_HANDLER fpe fpe fpe silent /* #15 */ BUILD_HANDLER mdmx mdmx sti silent /* #22 */ #ifdef CONFIG_HARDWARE_WATCHPOINTS - BUILD_HANDLER watch watch sti silent /* #23 */ + /* + * For watch, interrupts will be enabled after the watch + * registers are read. + */ + BUILD_HANDLER watch watch cli silent /* #23 */ #else BUILD_HANDLER watch watch sti verbose /* #23 */ #endif diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c index 5e77a3a21f9..42461310b18 100644 --- a/arch/mips/kernel/mips-mt-fpaff.c +++ b/arch/mips/kernel/mips-mt-fpaff.c @@ -79,7 +79,8 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len, euid = current_euid(); retval = -EPERM; - if (euid != p->euid && euid != p->uid && !capable(CAP_SYS_NICE)) { + if (euid != p->cred->euid && euid != p->cred->uid && + !capable(CAP_SYS_NICE)) { read_unlock(&tasklist_lock); goto out_unlock; } diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index f6083c6bfaa..b2d7041341b 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -944,6 +944,9 @@ asmlinkage void do_mdmx(struct pt_regs *regs) force_sig(SIGILL, current); } +/* + * Called with interrupts disabled. + */ asmlinkage void do_watch(struct pt_regs *regs) { u32 cause; @@ -963,9 +966,12 @@ asmlinkage void do_watch(struct pt_regs *regs) */ if (test_tsk_thread_flag(current, TIF_LOAD_WATCH)) { mips_read_watch_registers(); + local_irq_enable(); force_sig(SIGTRAP, current); - } else + } else { mips_clear_watch_registers(); + local_irq_enable(); + } } asmlinkage void do_mcheck(struct pt_regs *regs) @@ -1582,7 +1588,11 @@ void __init set_handler(unsigned long offset, void *addr, unsigned long size) static char panic_null_cerr[] __cpuinitdata = "Trying to set NULL cache error exception handler"; -/* Install uncached CPU exception handler */ +/* + * Install uncached CPU exception handler. + * This is suitable only for the cache error exception which is the only + * exception handler that is being run uncached. + */ void __cpuinit set_uncached_handler(unsigned long offset, void *addr, unsigned long size) { @@ -1593,7 +1603,7 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr, unsigned long uncached_ebase = TO_UNCAC(ebase); #endif if (cpu_has_mips_r2) - ebase += (read_c0_ebase() & 0x3ffff000); + uncached_ebase += (read_c0_ebase() & 0x3ffff000); if (!addr) panic(panic_null_cerr); diff --git a/arch/mips/lib/memcpy-inatomic.S b/arch/mips/lib/memcpy-inatomic.S index 736d0fb56a9..68853a038d3 100644 --- a/arch/mips/lib/memcpy-inatomic.S +++ b/arch/mips/lib/memcpy-inatomic.S @@ -21,7 +21,7 @@ * end of memory on some systems. It's also a seriously bad idea on non * dma-coherent systems. */ -#if !defined(CONFIG_DMA_COHERENT) || !defined(CONFIG_DMA_IP27) +#ifdef CONFIG_DMA_NONCOHERENT #undef CONFIG_CPU_HAS_PREFETCH #endif #ifdef CONFIG_MIPS_MALTA diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S index c06cccf60be..56a1f85a1ce 100644 --- a/arch/mips/lib/memcpy.S +++ b/arch/mips/lib/memcpy.S @@ -21,7 +21,7 @@ * end of memory on some systems. It's also a seriously bad idea on non * dma-coherent systems. */ -#if !defined(CONFIG_DMA_COHERENT) || !defined(CONFIG_DMA_IP27) +#ifdef CONFIG_DMA_NONCOHERENT #undef CONFIG_CPU_HAS_PREFETCH #endif #ifdef CONFIG_MIPS_MALTA diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 6e99665ae86..c43f4b26a69 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -618,15 +618,35 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) if (cpu_has_inclusive_pcaches) { if (size >= scache_size) r4k_blast_scache(); - else + else { + unsigned long lsize = cpu_scache_line_size(); + unsigned long almask = ~(lsize - 1); + + /* + * There is no clearly documented alignment requirement + * for the cache instruction on MIPS processors and + * some processors, among them the RM5200 and RM7000 + * QED processors will throw an address error for cache + * hit ops with insufficient alignment. Solved by + * aligning the address to cache line size. + */ + cache_op(Hit_Writeback_Inv_SD, addr & almask); + cache_op(Hit_Writeback_Inv_SD, + (addr + size - 1) & almask); blast_inv_scache_range(addr, addr + size); + } return; } if (cpu_has_safe_index_cacheops && size >= dcache_size) { r4k_blast_dcache(); } else { + unsigned long lsize = cpu_dcache_line_size(); + unsigned long almask = ~(lsize - 1); + R4600_HIT_CACHEOP_WAR_IMPL; + cache_op(Hit_Writeback_Inv_D, addr & almask); + cache_op(Hit_Writeback_Inv_D, (addr + size - 1) & almask); blast_inv_dcache_range(addr, addr + size); } diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index fa636fc6b7b..55767ad9f00 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -97,7 +97,6 @@ good_area: goto bad_area; } -survive: /* * If for any reason at all we couldn't handle the fault, * make sure we exit gracefully rather than endlessly redo @@ -167,21 +166,13 @@ no_context: field, regs->regs[31]); die("Oops", regs); -/* - * We ran out of memory, or some other thing happened to us that made - * us unable to handle the page fault gracefully. - */ out_of_memory: - up_read(&mm->mmap_sem); - if (is_global_init(tsk)) { - yield(); - down_read(&mm->mmap_sem); - goto survive; - } - printk("VM: killing process %s\n", tsk->comm); - if (user_mode(regs)) - do_group_exit(SIGKILL); - goto no_context; + /* + * We ran out of memory, call the OOM killer, and return the userspace + * (which will retry the fault, or kill us if we got oom-killed). + */ + pagefault_out_of_memory(); + return; do_sigbus: up_read(&mm->mmap_sem); diff --git a/arch/mips/pci/pci-rc32434.c b/arch/mips/pci/pci-rc32434.c index 1c2821e2f49..71f7d27b0d4 100644 --- a/arch/mips/pci/pci-rc32434.c +++ b/arch/mips/pci/pci-rc32434.c @@ -205,6 +205,8 @@ static int __init rc32434_pcibridge_init(void) static int __init rc32 |