diff options
Diffstat (limited to 'arch')
157 files changed, 5236 insertions, 1448 deletions
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index b4e5f8ff2b25..dd8769670596 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -34,6 +34,7 @@ #include <linux/root_dev.h> #include <linux/initrd.h> #include <linux/eisa.h> +#include <linux/pfn.h> #ifdef CONFIG_MAGIC_SYSRQ #include <linux/sysrq.h> #include <linux/reboot.h> @@ -42,7 +43,7 @@ #include <asm/setup.h> #include <asm/io.h> -extern struct notifier_block *panic_notifier_list; +extern struct atomic_notifier_head panic_notifier_list; static int alpha_panic_event(struct notifier_block *, unsigned long, void *); static struct notifier_block alpha_panic_block = { alpha_panic_event, @@ -241,9 +242,6 @@ reserve_std_resources(void) request_resource(io, standard_io_resources+i); } -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) #define PFN_MAX PFN_DOWN(0x80000000) #define for_each_mem_cluster(memdesc, cluster, i) \ for ((cluster) = (memdesc)->cluster, (i) = 0; \ @@ -472,11 +470,6 @@ page_is_ram(unsigned long pfn) return 0; } -#undef PFN_UP -#undef PFN_DOWN -#undef PFN_PHYS -#undef PFN_MAX - void __init setup_arch(char **cmdline_p) { @@ -507,7 +500,8 @@ setup_arch(char **cmdline_p) } /* Register a call for panic conditions. */ - notifier_chain_register(&panic_notifier_list, &alpha_panic_block); + atomic_notifier_chain_register(&panic_notifier_list, + &alpha_panic_block); #ifdef CONFIG_ALPHA_GENERIC /* Assume that we've booted from SRM if we haven't booted from MILO. diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 6b2921be1909..3859749810b4 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -314,10 +314,11 @@ time_init(void) if (!est_cycle_freq) est_cycle_freq = validate_cc_value(calibrate_cc_with_pit()); - cc1 = rpcc_after_update_in_progress(); + cc1 = rpcc(); /* Calibrate CPU clock -- attempt #2. */ if (!est_cycle_freq) { + cc1 = rpcc_after_update_in_progress(); cc2 = rpcc_after_update_in_progress(); est_cycle_freq = validate_cc_value(cc2 - cc1); cc1 = cc2; diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index 6d5251254f68..bf6b65c81bef 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -13,6 +13,7 @@ #include <linux/bootmem.h> #include <linux/swap.h> #include <linux/initrd.h> +#include <linux/pfn.h> #include <asm/hwrpb.h> #include <asm/pgalloc.h> @@ -27,9 +28,6 @@ bootmem_data_t node_bdata[MAX_NUMNODES]; #define DBGDCONT(args...) #endif -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) #define for_each_mem_cluster(memdesc, cluster, i) \ for ((cluster) = (memdesc)->cluster, (i) = 0; \ (i) < (memdesc)->numclusters; (i)++, (cluster)++) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bf2e72698d02..ba46d779ede7 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -8,6 +8,7 @@ mainmenu "Linux Kernel Configuration" config ARM bool default y + select RTC_LIB help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and @@ -152,6 +153,12 @@ config ARCH_IXP2000 help Support for Intel's IXP2400/2800 (XScale) family of processors. +config ARCH_IXP23XX + bool "IXP23XX-based" + select PCI + help + Support for Intel's IXP23xx (XScale) family of processors. + config ARCH_L7200 bool "LinkUp-L7200" select FIQ @@ -273,6 +280,8 @@ source "arch/arm/mach-ixp4xx/Kconfig" source "arch/arm/mach-ixp2000/Kconfig" +source "arch/arm/mach-ixp23xx/Kconfig" + source "arch/arm/mach-pxa/Kconfig" source "arch/arm/mach-sa1100/Kconfig" @@ -791,7 +800,8 @@ source "drivers/acorn/block/Kconfig" if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \ || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \ - || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE + || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE \ + || ARCH_IXP23XX source "drivers/ide/Kconfig" endif @@ -839,6 +849,8 @@ source "drivers/usb/Kconfig" source "drivers/mmc/Kconfig" +source "drivers/rtc/Kconfig" + endmenu source "fs/Kconfig" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 99c0d323719a..ce3e804ea0f3 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -57,6 +57,7 @@ tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale +tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) ifeq ($(CONFIG_AEABI),y) @@ -97,6 +98,7 @@ endif machine-$(CONFIG_ARCH_IOP3XX) := iop3xx machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx machine-$(CONFIG_ARCH_IXP2000) := ixp2000 + machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx machine-$(CONFIG_ARCH_OMAP1) := omap1 machine-$(CONFIG_ARCH_OMAP2) := omap2 incdir-$(CONFIG_ARCH_OMAP) := omap diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 35ffe0f4ece7..2adc1527e0eb 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -50,10 +50,6 @@ ifeq ($(CONFIG_ARCH_AT91RM9200),y) OBJS += head-at91rm9200.o endif -ifeq ($(CONFIG_DEBUG_ICEDCC),y) -OBJS += ice-dcc.o -endif - ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) OBJS += big-endian.o endif diff --git a/arch/arm/boot/compressed/ice-dcc.S b/arch/arm/boot/compressed/ice-dcc.S deleted file mode 100644 index 104377a199bb..000000000000 --- a/arch/arm/boot/compressed/ice-dcc.S +++ /dev/null @@ -1,17 +0,0 @@ - - - .text - - .global icedcc_putc - -icedcc_putc: - mov r2, #0x4000000 -1: - subs r2, r2, #1 - movlt pc, r14 - mrc p14, 0, r1, c0, c0, 0 - tst r1, #2 - bne 1b - - mcr p14, 0, r0, c1, c0, 0 - mov pc, r14 diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 5ab94584baee..0af3772efcb7 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -20,24 +20,45 @@ unsigned int __machine_arch_type; #include <linux/string.h> -#include <asm/arch/uncompress.h> - #ifdef STANDALONE_DEBUG #define putstr printf -#endif +#else + +static void putstr(const char *ptr); + +#include <linux/compiler.h> +#include <asm/arch/uncompress.h> #ifdef CONFIG_DEBUG_ICEDCC -#define putstr icedcc_putstr -#define putc icedcc_putc +static void icedcc_putc(int ch) +{ + int status, i = 0x4000000; -extern void icedcc_putc(int ch); + do { + if (--i < 0) + return; -static void -icedcc_putstr(const char *ptr) + asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status)); + } while (status & 2); + + asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch)); +} + +#define putc(ch) icedcc_putc(ch) +#define flush() do { } while (0) +#endif + +static void putstr(const char *ptr) { - for (; *ptr != '\0'; ptr++) { - icedcc_putc(*ptr); + char c; + + while ((c = *ptr++) != '\0') { + if (c == '\n') + putc('\r'); + putc(c); } + + flush(); } #endif diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c index e851d86c212c..35c9a64ac14c 100644 --- a/arch/arm/common/rtctime.c +++ b/arch/arm/common/rtctime.c @@ -20,6 +20,7 @@ #include <linux/capability.h> #include <linux/device.h> #include <linux/mutex.h> +#include <linux/rtc.h> #include <asm/rtc.h> #include <asm/semaphore.h> @@ -42,89 +43,6 @@ static struct rtc_ops *rtc_ops; #define rtc_epoch 1900UL -static const unsigned char days_in_month[] = { - 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 -}; - -#define LEAPS_THRU_END_OF(y) ((y)/4 - (y)/100 + (y)/400) -#define LEAP_YEAR(year) ((!(year % 4) && (year % 100)) || !(year % 400)) - -static int month_days(unsigned int month, unsigned int year) -{ - return days_in_month[month] + (LEAP_YEAR(year) && month == 1); -} - -/* - * Convert seconds since 01-01-1970 00:00:00 to Gregorian date. - */ -void rtc_time_to_tm(unsigned long time, struct rtc_time *tm) -{ - int days, month, year; - - days = time / 86400; - time -= days * 86400; - - tm->tm_wday = (days + 4) % 7; - - year = 1970 + days / 365; - days -= (year - 1970) * 365 - + LEAPS_THRU_END_OF(year - 1) - - LEAPS_THRU_END_OF(1970 - 1); - if (days < 0) { - year -= 1; - days += 365 + LEAP_YEAR(year); - } - tm->tm_year = year - 1900; - tm->tm_yday = days + 1; - - for (month = 0; month < 11; month++) { - int newdays; - - newdays = days - month_days(month, year); - if (newdays < 0) - break; - days = newdays; - } - tm->tm_mon = month; - tm->tm_mday = days + 1; - - tm->tm_hour = time / 3600; - time -= tm->tm_hour * 3600; - tm->tm_min = time / 60; - tm->tm_sec = time - tm->tm_min * 60; -} -EXPORT_SYMBOL(rtc_time_to_tm); - -/* - * Does the rtc_time represent a valid date/time? - */ -int rtc_valid_tm(struct rtc_time *tm) -{ - if (tm->tm_year < 70 || - tm->tm_mon >= 12 || - tm->tm_mday < 1 || - tm->tm_mday > month_days(tm->tm_mon, tm->tm_year + 1900) || - tm->tm_hour >= 24 || - tm->tm_min >= 60 || - tm->tm_sec >= 60) - return -EINVAL; - - return 0; -} -EXPORT_SYMBOL(rtc_valid_tm); - -/* - * Convert Gregorian date to seconds since 01-01-1970 00:00:00. - */ -int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time) -{ - *time = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, - tm->tm_hour, tm->tm_min, tm->tm_sec); - - return 0; -} -EXPORT_SYMBOL(rtc_tm_to_time); - /* * Calculate the next alarm time given the requested alarm time mask * and the current time. @@ -151,13 +69,13 @@ void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc } } -static inline int rtc_read_time(struct rtc_ops *ops, struct rtc_time *tm) +static inline int rtc_arm_read_time(struct rtc_ops *ops, struct rtc_time *tm) { memset(tm, 0, sizeof(struct rtc_time)); return ops->read_time(tm); } -static inline int rtc_set_time(struct rtc_ops *ops, struct rtc_time *tm) +static inline int rtc_arm_set_time(struct rtc_ops *ops, struct rtc_time *tm) { int ret; @@ -168,7 +86,7 @@ static inline int rtc_set_time(struct rtc_ops *ops, struct rtc_time *tm) return ret; } -static inline int rtc_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) +static inline int rtc_arm_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) { int ret = -EINVAL; if (ops->read_alarm) { @@ -178,7 +96,7 @@ static inline int rtc_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) return ret; } -static inline int rtc_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) +static inline int rtc_arm_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm) { int ret = -EINVAL; if (ops->set_alarm) @@ -266,7 +184,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, switch (cmd) { case RTC_ALM_READ: - ret = rtc_read_alarm(ops, &alrm); + ret = rtc_arm_read_alarm(ops, &alrm); if (ret) break; ret = copy_to_user(uarg, &alrm.time, sizeof(tm)); @@ -288,11 +206,11 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, alrm.time.tm_wday = -1; alrm.time.tm_yday = -1; alrm.time.tm_isdst = -1; - ret = rtc_set_alarm(ops, &alrm); + ret = rtc_arm_set_alarm(ops, &alrm); break; case RTC_RD_TIME: - ret = rtc_read_time(ops, &tm); + ret = rtc_arm_read_time(ops, &tm); if (ret) break; ret = copy_to_user(uarg, &tm, sizeof(tm)); @@ -310,7 +228,7 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, ret = -EFAULT; break; } - ret = rtc_set_time(ops, &tm); + ret = rtc_arm_set_time(ops, &tm); break; case RTC_EPOCH_SET: @@ -341,11 +259,11 @@ static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, ret = -EFAULT; break; } - ret = rtc_set_alarm(ops, &alrm); + ret = rtc_arm_set_alarm(ops, &alrm); break; case RTC_WKALM_RD: - ret = rtc_read_alarm(ops, &alrm); + ret = rtc_arm_read_alarm(ops, &alrm); if (ret) break; ret = copy_to_user(uarg, &alrm, sizeof(alrm)); @@ -435,7 +353,7 @@ static int rtc_read_proc(char *page, char **start, off_t off, int count, int *eo struct rtc_time tm; char *p = page; - if (rtc_read_time(ops, &tm) == 0) { + if (rtc_arm_read_time(ops, &tm) == 0) { p += sprintf(p, "rtc_time\t: %02d:%02d:%02d\n" "rtc_date\t: %04d-%02d-%02d\n" @@ -445,7 +363,7 @@ static int rtc_read_proc(char *page, char **start, off_t off, int count, int *eo rtc_epoch); } - if (rtc_read_alarm(ops, &alrm) == 0) { + if (rtc_arm_read_alarm(ops, &alrm) == 0) { p += sprintf(p, "alrm_time\t: "); if ((unsigned int)alrm.time.tm_hour <= 24) p += sprintf(p, "%02d:", alrm.time.tm_hour); diff --git a/arch/arm/configs/ixp23xx_defconfig b/arch/arm/configs/ixp23xx_defconfig new file mode 100644 index 000000000000..1a2751e9ab05 --- /dev/null +++ b/arch/arm/configs/ixp23xx_defconfig @@ -0,0 +1,1302 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.16 +# Tue Mar 21 03:27:20 2006 +# +CONFIG_ARM=y +CONFIG_MMU=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_UID16=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +CONFIG_SLAB=y +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" + +# +# System Type +# +# CONFIG_ARCH_CLPS7500 is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CO285 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_IOP3XX is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_IXP2000 is not set +CONFIG_ARCH_IXP23XX=y +# CONFIG_ARCH_L7200 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_LH7A40X is not set +# CONFIG_ARCH_OMAP is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_AAEC2000 is not set +# CONFIG_ARCH_AT91RM9200 is not set +CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y + +# +# Intel IXP23xx Implementation Options +# + +# +# IXP23xx Platforms +# +CONFIG_MACH_ESPRESSO=y +CONFIG_MACH_IXDP2351=y +CONFIG_MACH_ROADRUNNER=y + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_XSC3=y +CONFIG_CPU_32v5=y +CONFIG_CPU_ABRT_EV5T=y +CONFIG_CPU_CACHE_VIVT=y +CONFIG_CPU_TLB_V4WBI=y +CONFIG_IO_36=y + +# +# Processor Features +# +# CONFIG_ARM_THUMB is not set +CONFIG_CPU_BIG_ENDIAN=y + +# +# Bus support +# +CONFIG_PCI=y +CONFIG_PCI_LEGACY_PROC=y +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +# CONFIG_PREEMPT is not set +# CONFIG_NO_IDLE_HZ is not set +CONFIG_HZ=100 +# CONFIG_AEABI is not set +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4096 +CONFIG_ALIGNMENT_TRAP=y + +# +# Boot options +# +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp" +# CONFIG_XIP_KERNEL is not set + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +CONFIG_FPE_NWFPE=y +CONFIG_FPE_NWFPE_XP=y +# CONFIG_FPE_FASTFPE is not set + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_AOUT is not set +# CONFIG_BINFMT_MISC is not set +# CONFIG_ARTHUR is not set + +# +# Power management options +# +# CONFIG_PM is not set +# CONFIG_APM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +CONFIG_MTD_REDBOOT_PARTS=y +CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1 +CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y +CONFIG_MTD_REDBOOT_PARTS_READONLY=y +# CONFIG_MTD_CMDLINE_PARTS is not set +# CONFIG_MTD_AFS_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +CONFIG_MTD_CFI_INTELEXT=y +# CONFIG_MTD_CFI_AMDSTD is not set +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +CONFIG_MTD_COMPLEX_MAPPINGS=y +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0x0 +CONFIG_MTD_PHYSMAP_LEN=0x0 +CONFIG_MTD_PHYSMAP_BANKWIDTH=1 +# CONFIG_MTD_ARM_INTEGRATOR is not set +# CONFIG_MTD_PCI is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_PMC551 is not set +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLKMTD is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=8192 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=y +CONFIG_BLK_DEV_IDE=y + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_BLK_DEV_IDEDISK=y +# CONFIG_IDEDISK_MULTI_MODE is not set +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +# CONFIG_BLK_DEV_IDESCSI is not set +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=y +CONFIG_BLK_DEV_IDEPCI=y +# CONFIG_IDEPCI_SHARE_IRQ is not set +# CONFIG_BLK_DEV_OFFBOARD is not set +# CONFIG_BLK_DEV_GENERIC is not set +# CONFIG_BLK_DEV_OPTI621 is not set +# CONFIG_BLK_DEV_SL82C105 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +# CONFIG_IDEDMA_PCI_AUTO is not set +# CONFIG_BLK_DEV_AEC62XX is not set +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +CONFIG_BLK_DEV_SIIMAGE=y +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +# CONFIG_IDE_ARM is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +# CONFIG_IDEDMA_AUTO is not set +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +# CONFIG_SCSI_QLA_FC is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +CONFIG_DUMMY=y +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_CS89x0 is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +CONFIG_E100=y +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +# CONFIG_8139CP is not set +# CONFIG_8139TOO is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +CONFIG_E1000=y +CONFIG_E1000_NAPI=y +# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SKY2 is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +CONFIG_WAN=y +# CONFIG_DSCC4 is not set +# CONFIG_LANMEDIA is not set +# CONFIG_SYNCLINK_SYNCPPP is not set +CONFIG_HDLC=y +CONFIG_HDLC_RAW=y +# CONFIG_HDLC_RAW_ETH is not set +CONFIG_HDLC_CISCO=y +CONFIG_HDLC_FR=y +CONFIG_HDLC_PPP=y + +# +# X.25/LAPB support is disabled +# +# CONFIG_PCI200SYN is not set +# CONFIG_WANXL is not set +# CONFIG_PC300 is not set +# CONFIG_FARSYNC is not set +CONFIG_DLCI=y +CONFIG_DLCI_COUNT=24 +CONFIG_DLCI_MAX=8 +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +CONFIG_INPUT_MOUSEDEV_PSAUX=y +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_NR_UARTS=4 +CONFIG_SERIAL_8250_RUNTIME_UARTS=4 +# CONFIG_SERIAL_8250_EXTENDED is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +CONFIG_WATCHDOG=y +# CONFIG_WATCHDOG_NOWAYOUT is not set + +# +# Watchdog Device Drivers +# +# CONFIG_SOFT_WATCHDOG is not set + +# +# PCI-based Watchdog Cards +# +# CONFIG_PCIPCWATCHDOG is not set +# CONFIG_WDTPCI is not set + +# +# USB-based Watchdog Cards +# +# CONFIG_USBPCWATCHDOG is not set +# CONFIG_NVRAM is not set +# CONFIG_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +CONFIG_I2C_ALGOBIT=y +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_ALI1535 is not set +# CONFIG_I2C_ALI1563 is not set +# CONFIG_I2C_ALI15X3 is not set +# CONFIG_I2C_AMD756 is not set +# CONFIG_I2C_AMD8111 is not set +# CONFIG_I2C_I801 is not set +# CONFIG_I2C_I810 is not set +# CONFIG_I2C_PIIX4 is not set +# CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_PROSAVAGE is not set +# CONFIG_I2C_SAVAGE4 is not set +# CONFIG_SCx200_ACB is not set +# CONFIG_I2C_SIS5595 is not set +# CONFIG_I2C_SIS630 is not set +# CONFIG_I2C_SIS96X is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_VIA is not set +# CONFIG_I2C_VIAPRO is not set +# CONFIG_I2C_VOODOO3 is not set +# CONFIG_I2C_PCA_ISA is not set + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +CONFIG_SENSORS_EEPROM=y +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_RTC8564 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_RTC_X1205_I2C is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ADM1021 is not set +# CONFIG_SENSORS_ADM1025 is not set +# CONFIG_SENSORS_ADM1026 is not set +# CONFIG_SENSORS_ADM1031 is not set +# CONFIG_SENSORS_ADM9240 is not set +# CONFIG_SENSORS_ASB100 is not set +# CONFIG_SENSORS_ATXP1 is not set +# CONFIG_SENSORS_DS1621 is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_FSCHER is not set +# CONFIG_SENSORS_FSCPOS is not set +# CONFIG_SENSORS_GL518SM is not set +# CONFIG_SENSORS_GL520SM is not set +# CONFIG_SENSORS_IT87 is not set +# CONFIG_SENSORS_LM63 is not set +# CONFIG_SENSORS_LM75 is not set +# CONFIG_SENSORS_LM77 is not set +# CONFIG_SENSORS_LM78 is not set +# CONFIG_SENSORS_LM80 is not set +# CONFIG_SENSORS_LM83 is not set +# CONFIG_SENSORS_LM85 is not set +# CONFIG_SENSORS_LM87 is not set +# CONFIG_SENSORS_LM90 is not set +# CONFIG_SENSORS_LM92 is not set +# CONFIG_SENSORS_MAX1619 is not set +# CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_SIS5595 is not set +# CONFIG_SENSORS_SMSC47M1 is not set +# CONFIG_SENSORS_SMSC47B397 is not set +# CONFIG_SENSORS_VIA686A is not set +# CONFIG_SENSORS_VT8231 is not set +# CONFIG_SENSORS_W83781D is not set +# CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83L785TS is not set +# CONFIG_SENSORS_W83627HF is not set +# CONFIG_SENSORS_W83627EHF is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +# CONFIG_USB_DEVICEFS is not set +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +CONFIG_USB_UHCI_HCD=y +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_LIBUSUAL is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_MTOUCH is not set +# CONFIG_USB_ITMTOUCH is not set +# CONFIG_USB_EGALAX is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_ATI_REMOTE2 is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Multimedia devices +# +# CONFIG_USB_DABUSB is not set + +# +# Video4Linux support is needed for USB Multimedia device support +# + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +# CONFIG_EXT2_FS_SECURITY is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +CONFIG_EXT3_FS_POSIX_ACL=y +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +# CONFIG_VFAT_FS is not set +CONFIG_FAT_DEFAULT_CODEPAGE=437 +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +# CONFIG_MAC_PARTITION is not set +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_VM is not set +CONFIG_FRAME_POINTER=y +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +CONFIG_DEBUG_USER=y +# CONFIG_DEBUG_WAITQ is not set +CONFIG_DEBUG_ERRORS=y +CONFIG_DEBUG_LL=y +# CONFIG_DEBUG_ICEDCC is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 391f3ab3ff32..7b726b627ea5 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -18,7 +18,7 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ # the code in uaccess.S is not preemption safe and # probably faster on ARMv3 only -ifeq ($CONFIG_PREEMPT,y) +ifeq ($(CONFIG_PREEMPT),y) lib-y += copy_from_user.o copy_to_user.o else ifneq ($(CONFIG_CPU_32v3),y) diff --git a/arch/arm/lib/copy_template.S b/arch/arm/lib/copy_template.S index 838e435e4922..cab355c0c1f7 100644 --- a/arch/arm/lib/copy_template.S +++ b/arch/arm/lib/copy_template.S @@ -236,7 +236,7 @@ /* - * Abort preanble and completion macros. + * Abort preamble and completion macros. * If a fixup handler is required then those macros must surround it. * It is assumed that the fixup code will handle the private part of * the exit macro. diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index 865427bfad7e..2d892e4daa07 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -30,7 +30,9 @@ #include <linux/time.h> #include <linux/timex.h> #include <linux/delay.h> +#include <linux/termios.h> #include <linux/amba/bus.h> +#include <linux/amba/serial.h> #include <asm/types.h> #include <asm/setup.h> @@ -360,6 +362,68 @@ void __init ep93xx_init_irq(void) /************************************************************************* * EP93xx peripheral handling *************************************************************************/ +#define EP93XX_UART_MCR_OFFSET (0x0100) + +static void ep93xx_uart_set_mctrl(struct amba_device *dev, + void __iomem *base, unsigned int mctrl) +{ + unsigned int mcr; + + mcr = 0; + if (!(mctrl & TIOCM_RTS)) + mcr |= 2; + if (!(mctrl & TIOCM_DTR)) + mcr |= 1; + + __raw_writel(mcr, base + EP93XX_UART_MCR_OFFSET); +} + +static struct amba_pl010_data ep93xx_uart_data = { + .set_mctrl = ep93xx_uart_set_mctrl, +}; + +static struct amba_device uart1_device = { + .dev = { + .bus_id = "apb:uart1", + .platform_data = &ep93xx_uart_data, + }, + .res = { + .start = EP93XX_UART1_PHYS_BASE, + .end = EP93XX_UART1_PHYS_BASE + 0x0fff, + .flags = IORESOURCE_MEM, + }, + .irq = { IRQ_EP93XX_UART1, NO_IRQ }, + .periphid = 0x00041010, +}; + +static struct amba_device uart2_device = { + .dev = { + .bus_id = "apb:uart2", + .platform_data = &ep93xx_uart_data, + }, + .res = { + .start = EP93XX_UART2_PHYS_BASE, + .end = EP93XX_UART2_PHYS_BASE + 0x0fff, + .flags = IORESOURCE_MEM, + }, + .irq = { IRQ_EP93XX_UART2, NO_IRQ }, + .periphid = 0x00041010, +}; + +static struct amba_device uart3_device = { + .dev = { + .bus_id = "apb:uart3", + .platform_data = &ep93xx_uart_data, + }, + .res = { + .start = EP93XX_UART3_PHYS_BASE, + .end = EP93XX_UART3_PHYS_BASE + 0x0fff, + .flags = IORESOURCE_MEM, + }, + .irq = { IRQ_EP93XX_UART3, NO_IRQ }, + .periphid = 0x00041010, +}; + void __init ep93xx_init_devices(void) { unsigned int v; @@ -371,4 +435,8 @@ void __init ep93xx_init_devices(void) v &= ~EP93XX_SYSCON_DEVICE_CONFIG_CRUNCH_ENABLE; __raw_writel(0xaa, EP93XX_SYSCON_SWLOCK); __raw_writel(v, EP93XX_SYSCON_DEVICE_CONFIG); + + amba_device_register(&uart1_device, &iomem_resource); + amba_device_register(&uart2_device, &iomem_resource); + amba_device_register(&uart3_device, &iomem_resource); } diff --git a/arch/arm/mach-footbridge/time.c b/arch/arm/mach-footbridge/time.c index 2c64a0b0502e..5d02e95dede3 100644 --- a/arch/arm/mach-footbridge/time.c +++ b/arch/arm/mach-footbridge/time.c @@ -34,27 +34,12 @@ static int rtc_base; static unsigned long __init get_isa_cmos_time(void) { unsigned int year, mon, day, hour, min, sec; - int i; // check to see if the RTC makes sense..... if ((CMOS_READ(RTC_VALID) & RTC_VRT) == 0) return mktime(1970, 1, 1, 0, 0, 0); - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - /* read RTC exactly on falling edge of update flag */ - for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ - if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) - break; - - for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */ - if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) - break; - - do { /* Isn't this overkill ? UIP above should guarantee consistency */ + do { sec = CMOS_READ(RTC_SECONDS); min = CMOS_READ(RTC_MINUTES); hour = CMOS_READ(RTC_HOURS); diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index 20071a2767cc..576a5e979c00 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -15,7 +15,9 @@ #include <linux/interrupt.h> #include <linux/sched.h> #include <linux/smp.h> +#include <linux/termios.h> #include <linux/amba/bus.h> +#include <linux/amba/serial.h> #include <asm/hardware.h> #include <asm/irq.h> @@ -28,6 +30,8 @@ #include "common.h" +static struct amba_pl010_data integrator_uart_data; + static struct amba_device rtc_device = { .dev = { .bus_id = "mb:15", @@ -44,6 +48,7 @@ static struct amba_device rtc_device = { static struct amba_device uart0_device = { .dev = { .bus_id = "mb:16", + .platform_data = &integrator_uart_data, }, .res = { .start = INTEGRATOR_UART0_BASE, @@ -57,6 +62,7 @@ static struct amba_device uart0_device = { static struct amba_device uart1_device = { .dev = { .bus_id = "mb:17", + .platform_data = &integrator_uart_data, }, .res = { .start = INTEGRATOR_UART1_BASE, @@ -115,6 +121,46 @@ static int __init integrator_init(void) arch_initcall(integrator_init); +/* + * On the Integrator platform, the port RTS and DTR are provided by + * bits in the following SC_CTRLS register bits: + * RTS DTR + * UART0 7 6 + * UART1 5 4 + */ +#define SC_CTRLC (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLC_OFFSET) +#define SC_CTRLS (IO_ADDRESS(INTEGRATOR_SC_BASE) + INTEGRATOR_SC_CTRLS_OFFSET) + +static void integrator_uart_set_mctrl(struct amba_device *dev, void __iomem *base, unsigned int mctrl) +{ + unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask; + + if (dev == &uart0_device) { + rts_mask = 1 << 4; + dtr_mask = 1 << 5; + } else { + rts_mask = 1 << 6; + dtr_mask = 1 << 7; + } + + if (mctrl & TIOCM_RTS) + ctrlc |= rts_mask; + else + ctrls |= rts_mask; + + if (mctrl & TIOCM_DTR) + ctrlc |= dtr_mask; + else + ctrls |= dtr_mask; + + __raw_writel(ctrls, SC_CTRLS); + __raw_writel(ctrlc, SC_CTRLC); +} + +static struct amba_pl010_data integrator_uart_data = { + .set_mctrl = integrator_uart_set_mctrl, +}; + #define CM_CTRL IO_ADDRESS(INTEGRATOR_HDR_BASE) + INTEGRATOR_HDR_CTRL_OFFSET static DEFINE_SPINLOCK(cm_lock); diff --git a/arch/arm/mach-integrator/time.c b/arch/arm/mach-integrator/time.c index 3c22c16b38bf..bc07f52a6fd7 100644 --- a/arch/arm/mach-integrator/time.c +++ b/arch/arm/mach-integrator/time.c @@ -40,13 +40,13 @@ static int integrator_set_rtc(void) return 1; } -static int rtc_read_alarm(struct rtc_wkalrm *alrm) +static int integrator_rtc_read_alarm(struct rtc_wkalrm *alrm) { rtc_time_to_tm(readl(rtc_base + RTC_MR), &alrm->time); return 0; } -static inline int rtc_set_alarm(struct rtc_wkalrm *alrm) +static inline int integrator_rtc_set_alarm(struct rtc_wkalrm *alrm) { unsigned long time; int ret; @@ -62,7 +62,7 @@ static inline int rtc_set_alarm(struct rtc_wkalrm *alrm) return ret; } -static int rtc_read_time(struct rtc_time *tm) +static int integrator_rtc_read_time(struct rtc_time *tm) { rtc_time_to_tm(readl(rtc_base + RTC_DR), tm); return 0; @@ -76,7 +76,7 @@ static int rtc_read_time(struct rtc_time *tm) * edge of the 1Hz clock, we must write the time one second * in advance. */ -static inline int rtc_set_time(struct rtc_time *tm) +static inline int integrator_rtc_set_time(struct rtc_time *tm) { unsigned long time; int ret; @@ -90,10 +90,10 @@ static inline int rtc_set_time(struct rtc_time *tm) static struct rtc_ops rtc_ops = { .owner = THIS_MODULE, - .read_time = rtc_read_time, - .set_time = rtc_set_time, - .read_alarm = rtc_read_alarm, - .set_alarm = rtc_set_alarm, + .read_time = integrator_rtc_read_time, + .set_time = integrator_rtc_set_time, + .read_alarm = integrator_rtc_read_alarm, + .set_alarm = integrator_rtc_set_alarm, }; static irqreturn_t arm_rtc_interrupt(int irq, void *dev_id, diff --git a/arch/arm/mach-ixp23xx/Kconfig b/arch/arm/mach-ixp23xx/Kconfig new file mode 100644 index 000000000000..982670ec3866 --- /dev/null +++ b/arch/arm/mach-ixp23xx/Kconfig @@ -0,0 +1,25 @@ +if ARCH_IXP23XX + +config ARCH_SUPPORTS_BIG_ENDIAN + bool + default y + +menu "Intel IXP23xx Implementation Options" + +comment "IXP23xx Platforms" + +config MACH_ESPRESSO + bool "Support IP Fabrics Double Espresso platform" + help + +config MACH_IXDP2351 + bool "Support Intel IXDP2351 platform" + help + +config MACH_ROADRUNNER + bool "Support ADI RoadRunner platform" + help + +endmenu + +endif diff --git a/arch/arm/mach-ixp23xx/Makefile b/arch/arm/mach-ixp23xx/Makefile new file mode 100644 index 000000000000..288b371b6d03 --- /dev/null +++ b/arch/arm/mach-ixp23xx/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the linux kernel. +# +obj-y := core.o pci.o +obj-m := +obj-n := +obj- := + +obj-$(CONFIG_MACH_ESPRESSO) += espresso.o +obj-$(CONFIG_MACH_IXDP2351) += ixdp2351.o +obj-$(CONFIG_MACH_ROADRUNNER) += roadrunner.o diff --git a/arch/arm/mach-ixp23xx/Makefile.boot b/arch/arm/mach-ixp23xx/Makefile.boot new file mode 100644 index 000000000000..d5561ad15bad --- /dev/null +++ b/arch/arm/mach-ixp23xx/Makefile.boot @@ -0,0 +1,2 @@ + zreladdr-y := 0x00008000 +params_phys-y := 0x00000100 diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c new file mode 100644 index 000000000000..092ee12ced42 --- /dev/null +++ b/arch/arm/mach-ixp23xx/core.c @@ -0,0 +1,431 @@ +/* + * arch/arm/mach-ixp23xx/core.c + * + * Core routines for IXP23xx chips + * + * Author: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * Based on 2.4 code Copyright 2004 (c) Intel Corporation + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/bitops.h> +#include <linux/serial.h> +#include <linux/serial_8250.h> +#include <linux/serial_core.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/time.h> +#include <linux/timex.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/tlbflush.h> +#include <asm/pgtable.h> + +#include <asm/mach/map.h> +#include <asm/mach/time.h> +#include <asm/mach/irq.h> +#include <asm/mach/arch.h> + + +/************************************************************************* + * Chip specific mappings shared by all IXP23xx systems + *************************************************************************/ +static struct map_desc ixp23xx_io_desc[] __initdata = { + { /* XSI-CPP CSRs */ + .virtual = IXP23XX_XSI2CPP_CSR_VIRT, + .pfn = __phys_to_pfn(IXP23XX_XSI2CPP_CSR_PHYS), + .length = IXP23XX_XSI2CPP_CSR_SIZE, + .type = MT_DEVICE, + }, { /* Expansion Bus Config */ + .virtual = IXP23XX_EXP_CFG_VIRT, + .pfn = __phys_to_pfn(IXP23XX_EXP_CFG_PHYS), + .length = IXP23XX_EXP_CFG_SIZE, + .type = MT_DEVICE, + }, { /* UART, Interrupt ctrl, GPIO, timers, NPEs, MACS,.... */ + .virtual = IXP23XX_PERIPHERAL_VIRT, + .pfn = __phys_to_pfn(IXP23XX_PERIPHERAL_PHYS), + .length = IXP23XX_PERIPHERAL_SIZE, + .type = MT_DEVICE, + }, { /* CAP CSRs */ + .virtual = IXP23XX_CAP_CSR_VIRT, + .pfn = __phys_to_pfn(IXP23XX_CAP_CSR_PHYS), + .length = IXP23XX_CAP_CSR_SIZE, + .type = MT_DEVICE, + }, { /* MSF CSRs */ + .virtual = IXP23XX_MSF_CSR_VIRT, + .pfn = __phys_to_pfn(IXP23XX_MSF_CSR_PHYS), + .length = IXP23XX_MSF_CSR_SIZE, + .type = MT_DEVICE, + }, { /* PCI I/O Space */ + .virtual = IXP23XX_PCI_IO_VIRT, + .pfn = __phys_to_pfn(IXP23XX_PCI_IO_PHYS), + .length = IXP23XX_PCI_IO_SIZE, + .type = MT_DEVICE, + }, { /* PCI Config Space */ + .virtual = IXP23XX_PCI_CFG_VIRT, + .pfn = __phys_to_pfn(IXP23XX_PCI_CFG_PHYS), + .length = IXP23XX_PCI_CFG_SIZE, + .type = MT_DEVICE, + }, { /* PCI local CFG CSRs */ + .virtual = IXP23XX_PCI_CREG_VIRT, + .pfn = __phys_to_pfn(IXP23XX_PCI_CREG_PHYS), + .length = IXP23XX_PCI_CREG_SIZE, + .type = MT_DEVICE, + }, { /* PCI MEM Space */ + .virtual = IXP23XX_PCI_MEM_VIRT, + .pfn = __phys_to_pfn(IXP23XX_PCI_MEM_PHYS), + .length = IXP23XX_PCI_MEM_SIZE, + .type = MT_DEVICE, + } +}; + +void __init ixp23xx_map_io(void) +{ + iotable_init(ixp23xx_io_desc, ARRAY_SIZE(ixp23xx_io_desc)); +} + + +/*************************************************************************** + * IXP23xx Interrupt Handling + ***************************************************************************/ +enum ixp23xx_irq_type { + IXP23XX_IRQ_LEVEL, IXP23XX_IRQ_EDGE +}; + +static void ixp23xx_config_irq(unsigned int, enum ixp23xx_irq_type); + +static int ixp23xx_irq_set_type(unsigned int irq, unsigned int type) +{ + int line = irq - IRQ_IXP23XX_GPIO6 + 6; + u32 int_style; + enum ixp23xx_irq_type irq_type; + volatile u32 *int_reg; + + /* + * Only GPIOs 6-15 are wired to interrupts on IXP23xx + */ + if (line < 6 || line > 15) + return -EINVAL; + + switch (type) { + case IRQT_BOTHEDGE: + int_style = IXP23XX_GPIO_STYLE_TRANSITIONAL; + irq_type = IXP23XX_IRQ_EDGE; + break; + case IRQT_RISING: + int_style = IXP23XX_GPIO_STYLE_RISING_EDGE; + irq_type = IXP23XX_IRQ_EDGE; + break; + case IRQT_FALLING: + int_style = IXP23XX_GPIO_STYLE_FALLING_EDGE; + irq_type = IXP23XX_IRQ_EDGE; + break; + case IRQT_HIGH: + int_style = IXP23XX_GPIO_STYLE_ACTIVE_HIGH; + irq_type = IXP23XX_IRQ_LEVEL; + break; + case IRQT_LOW: + int_style = IXP23XX_GPIO_STYLE_ACTIVE_LOW; + irq_type = IXP23XX_IRQ_LEVEL; + break; + default: + return -EINVAL; + } + + ixp23xx_config_irq(irq, irq_type); + + if (line >= 8) { /* pins 8-15 */ + line -= 8; + int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT2R; + } else { /* pins 0-7 */ + int_reg = (volatile u32 *)IXP23XX_GPIO_GPIT1R; + } + + /* + * Clear pending interrupts + */ + *IXP23XX_GPIO_GPISR = (1 << line); + + /* Clear the style for the appropriate pin */ + *int_reg &= ~(IXP23XX_GPIO_STYLE_MASK << + (line * IXP23XX_GPIO_STYLE_SIZE)); + + /* Set the new style */ + *int_reg |= (int_style << (line * IXP23XX_GPIO_STYLE_SIZE)); + + return 0; +} + +static void ixp23xx_irq_mask(unsigned int irq) +{ + volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + + *intr_reg &= ~(1 << (irq % 32)); +} + +static void ixp23xx_irq_ack(unsigned int irq) +{ + int line = irq - IRQ_IXP23XX_GPIO6 + 6; + + if ((line < 6) || (line > 15)) + return; + + *IXP23XX_GPIO_GPISR = (1 << line); +} + +/* + * Level triggered interrupts on GPIO lines can only be cleared when the + * interrupt condition disappears. + */ +static void ixp23xx_irq_level_unmask(unsigned int irq) +{ + volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + + ixp23xx_irq_ack(irq); + + *intr_reg |= (1 << (irq % 32)); +} + +static void ixp23xx_irq_edge_unmask(unsigned int irq) +{ + volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + + *intr_reg |= (1 << (irq % 32)); +} + +static struct irqchip ixp23xx_irq_level_chip = { + .ack = ixp23xx_irq_mask, + .mask = ixp23xx_irq_mask, + .unmask = ixp23xx_irq_level_unmask, + .set_type = ixp23xx_irq_set_type +}; + +static struct irqchip ixp23xx_irq_edge_chip = { + .ack = ixp23xx_irq_ack, + .mask = ixp23xx_irq_mask, + .unmask = ixp23xx_irq_edge_unmask, + .set_type = ixp23xx_irq_set_type +}; + +static void ixp23xx_pci_irq_mask(unsigned int irq) +{ + *IXP23XX_PCI_XSCALE_INT_ENABLE &= ~(1 << (IRQ_IXP23XX_INTA + 27 - irq)); +} + +static void ixp23xx_pci_irq_unmask(unsigned int irq) +{ + *IXP23XX_PCI_XSCALE_INT_ENABLE |= (1 << (IRQ_IXP23XX_INTA + 27 - irq)); +} + +/* + * TODO: Should this just be done at ASM level? + */ +static void pci_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) +{ + u32 pci_interrupt; + unsigned int irqno; + struct irqdesc *int_desc; + + pci_interrupt = *IXP23XX_PCI_XSCALE_INT_STATUS; + + desc->chip->ack(irq); + + /* See which PCI_INTA, or PCI_INTB interrupted */ + if (pci_interrupt & (1 << 26)) { + irqno = IRQ_IXP23XX_INTB; + } else if (pci_interrupt & (1 << 27)) { + irqno = IRQ_IXP23XX_INTA; + } else { + BUG(); + } + + int_desc = irq_desc + irqno; + int_desc->handle(irqno, int_desc, regs); + + desc->chip->unmask(irq); +} + +static struct irqchip ixp23xx_pci_irq_chip = { + .ack = ixp23xx_pci_irq_mask, + .mask = ixp23xx_pci_irq_mask, + .unmask = ixp23xx_pci_irq_unmask +}; + +static void ixp23xx_config_irq(unsigned int irq, enum ixp23xx_irq_type type) +{ + switch (type) { + case IXP23XX_IRQ_LEVEL: + set_irq_chip(irq, &ixp23xx_irq_level_chip); + set_irq_handler(irq, do_level_IRQ); + break; + case IXP23XX_IRQ_EDGE: + set_irq_chip(irq, &ixp23xx_irq_edge_chip); + set_irq_handler(irq, do_edge_IRQ); + break; + } + set_irq_flags(irq, IRQF_VALID); +} + +void __init ixp23xx_init_irq(void) +{ + int irq; + + /* Route everything to IRQ */ + *IXP23XX_INTR_SEL1 = 0x0; + *IXP23XX_INTR_SEL2 = 0x0; + *IXP23XX_INTR_SEL3 = 0x0; + *IXP23XX_INTR_SEL4 = 0x0; + + /* Mask all sources */ + *IXP23XX_INTR_EN1 = 0x0; + *IXP23XX_INTR_EN2 = 0x0; + *IXP23XX_INTR_EN3 = 0x0; + *IXP23XX_INTR_EN4 = 0x0; + + /* + * Configure all IRQs for level-sensitive operation + */ + for (irq = 0; irq <= NUM_IXP23XX_RAW_IRQS; irq++) { + ixp23xx_config_irq(irq, IXP23XX_IRQ_LEVEL); + } + + for (irq = IRQ_IXP23XX_INTA; irq <= IRQ_IXP23XX_INTB; irq++) { + set_irq_chip(irq, &ixp23xx_pci_irq_chip); + set_irq_handler(irq, do_level_IRQ); + set_irq_flags(irq, IRQF_VALID); + } + + set_irq_chained_handler(IRQ_IXP23XX_PCI_INT_RPH, pci_handler); +} + + +/************************************************************************* + * Timer-tick functions for IXP23xx + *************************************************************************/ +#define CLOCK_TICKS_PER_USEC CLOCK_TICK_RATE / (USEC_PER_SEC) + +static unsigned long next_jiffy_time; + +static unsigned long +ixp23xx_gettimeoffset(void) +{ + unsigned long elapsed; + + elapsed = *IXP23XX_TIMER_CONT - (next_jiffy_time - LATCH); + + return elapsed / CLOCK_TICKS_PER_USEC; +} + +static irqreturn_t +ixp23xx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + /* Clear Pending Interrupt by writing '1' to it */ + *IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND; + while ((*IXP23XX_TIMER_CONT - next_jiffy_time) > LATCH) { + timer_tick(regs); + next_jiffy_time += LATCH; + } + + return IRQ_HANDLED; +} + +static struct irqaction ixp23xx_timer_irq = { + .name = "IXP23xx Timer Tick", + .handler = ixp23xx_timer_interrupt, + .flags = SA_INTERRUPT | SA_TIMER, +}; + +void __init ixp23xx_init_timer(void) +{ + /* Clear Pending Interrupt by writing '1' to it */ + *IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND; + + /* Setup the Timer counter value */ + *IXP23XX_TIMER1_RELOAD = + (LATCH & ~IXP23XX_TIMER_RELOAD_MASK) | IXP23XX_TIMER_ENABLE; + + *IXP23XX_TIMER_CONT = 0; + next_jiffy_time = LATCH; + + /* Connect the interrupt handler and enable the interrupt */ + setup_irq(IRQ_IXP23XX_TIMER1, &ixp23xx_timer_irq); +} + +struct sys_timer ixp23xx_timer = { + .init = ixp23xx_init_timer, + .offset = ixp23xx_gettimeoffset, +}; + + +/************************************************************************* + * IXP23xx Platform Initializaion + *************************************************************************/ +static struct resource ixp23xx_uart_resources[] = { + { + .start = IXP23XX_UART1_PHYS, + .end = IXP23XX_UART1_PHYS + 0x0fff, + .flags = IORESOURCE_MEM + }, { + .start = IXP23XX_UART2_PHYS, + .end = IXP23XX_UART2_PHYS + 0x0fff, + .flags = IORESOURCE_MEM + } +}; + +static struct plat_serial8250_port ixp23xx_uart_data[] = { + { + .mapbase = IXP23XX_UART1_PHYS, + .membase = (char *)(IXP23XX_UART1_VIRT + 3), + .irq = IRQ_IXP23XX_UART1, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP23XX_UART_XTAL, + }, { + .mapbase = IXP23XX_UART2_PHYS, + .membase = (char *)(IXP23XX_UART2_VIRT + 3), + .irq = IRQ_IXP23XX_UART2, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = IXP23XX_UART_XTAL, + }, + { }, +}; + +static struct platform_device ixp23xx_uart = { + .name = "serial8250", + .id = 0, + .dev.platform_data = ixp23xx_uart_data, + .num_resources = 2, + .resource = ixp23xx_uart_resources, +}; + +static struct platform_device *ixp23xx_devices[] __initdata = { + &ixp23xx_uart, +}; + +void __init ixp23xx_sys_init(void) +{ + platform_add_devices(ixp23xx_devices, ARRAY_SIZE(ixp23xx_devices)); +} diff --git a/arch/arm/mach-ixp23xx/espresso.c b/arch/arm/mach-ixp23xx/espresso.c new file mode 100644 index 000000000000..2327c9790416 --- /dev/null +++ b/arch/arm/mach-ixp23xx/espresso.c @@ -0,0 +1,69 @@ +/* + * arch/arm/mach-ixp23xx/espresso.c + * + * Double Espresso-specific routines + * + * Author: Lennert Buytenhek <buytenh@wantstofly.org> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/bitops.h> +#include <linux/ioport.h> +#include <linux/serial.h> +#include <linux/serial_8250.h> +#include <linux/serial_core.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/pci.h> +#include <linux/mtd/physmap.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/tlbflush.h> +#include <asm/pgtable.h> + +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/pci.h> + +static void __init espresso_init(void) +{ + physmap_configure(0x90000000, 0x02000000, 2, NULL); + + /* + * Mark flash as writeable. + */ + IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; + + ixp23xx_sys_init(); +} + +MACHINE_START(ESPRESSO, "IP Fabrics Double Espresso") + /* Maintainer: Lennert Buytenhek */ + .phys_io = IXP23XX_PERIPHERAL_PHYS, + .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, + .map_io = ixp23xx_map_io, + .init_irq = ixp23xx_init_irq, + .timer = &ixp23xx_timer, + .boot_params = 0x00000100, + .init_machine = espresso_init, +MACHINE_END diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c new file mode 100644 index 000000000000..00146c35daac --- /dev/null +++ b/arch/arm/mach-ixp23xx/ixdp2351.c @@ -0,0 +1,325 @@ +/* + * arch/arm/mach-ixp23xx/ixdp2351.c + * + * IXDP2351 board-specific routines + * + * Author: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * Based on 2.4 code Copyright 2004 (c) Intel Corporation + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/bitops.h> +#include <linux/ioport.h> +#include <linux/serial.h> +#include <linux/serial_8250.h> +#include <linux/serial_core.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/pci.h> +#include <linux/mtd/physmap.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/tlbflush.h> +#include <asm/pgtable.h> + +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/pci.h> + +/* + * IXDP2351 Interrupt Handling + */ +static void ixdp2351_inta_mask(unsigned int irq) +{ + *IXDP2351_CPLD_INTA_MASK_SET_REG = IXDP2351_INTA_IRQ_MASK(irq); +} + +static void ixdp2351_inta_unmask(unsigned int irq) +{ + *IXDP2351_CPLD_INTA_MASK_CLR_REG = IXDP2351_INTA_IRQ_MASK(irq); +} + +static void ixdp2351_inta_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) +{ + u16 ex_interrupt = + *IXDP2351_CPLD_INTA_STAT_REG & IXDP2351_INTA_IRQ_VALID; + int i; + + desc->chip->mask(irq); + + for (i = 0; i < IXDP2351_INTA_IRQ_NUM; i++) { + if (ex_interrupt & (1 << i)) { + struct irqdesc *cpld_desc; + int cpld_irq = + IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + i); + cpld_desc = irq_desc + cpld_irq; + cpld_desc->handle(cpld_irq, cpld_desc, regs); + } + } + + desc->chip->unmask(irq); +} + +static struct irqchip ixdp2351_inta_chip = { + .ack = ixdp2351_inta_mask, + .mask = ixdp2351_inta_mask, + .unmask = ixdp2351_inta_unmask +}; + +static void ixdp2351_intb_mask(unsigned int irq) +{ + *IXDP2351_CPLD_INTB_MASK_SET_REG = IXDP2351_INTB_IRQ_MASK(irq); +} + +static void ixdp2351_intb_unmask(unsigned int irq) +{ + *IXDP2351_CPLD_INTB_MASK_CLR_REG = IXDP2351_INTB_IRQ_MASK(irq); +} + +static void ixdp2351_intb_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs) +{ + u16 ex_interrupt = + *IXDP2351_CPLD_INTB_STAT_REG & IXDP2351_INTB_IRQ_VALID; + int i; + + desc->chip->ack(irq); + + for (i = 0; i < IXDP2351_INTB_IRQ_NUM; i++) { + if (ex_interrupt & (1 << i)) { + struct irqdesc *cpld_desc; + int cpld_irq = + IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + i); + cpld_desc = irq_desc + cpld_irq; + cpld_desc->handle(cpld_irq, cpld_desc, regs); + } + } + + desc->chip->unmask(irq); +} + +static struct irqchip ixdp2351_intb_chip = { + .ack = ixdp2351_intb_mask, + .mask = ixdp2351_intb_mask, + .unmask = ixdp2351_intb_unmask +}; + +void ixdp2351_init_irq(void) +{ + int irq; + + /* Mask all interrupts from CPLD, disable simulation */ + *IXDP2351_CPLD_INTA_MASK_SET_REG = (u16) -1; + *IXDP2351_CPLD_INTB_MASK_SET_REG = (u16) -1; + *IXDP2351_CPLD_INTA_SIM_REG = 0; + *IXDP2351_CPLD_INTB_SIM_REG = 0; + + ixp23xx_init_irq(); + + for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE); + irq < + IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + IXDP2351_INTA_IRQ_NUM); + irq++) { + if (IXDP2351_INTA_IRQ_MASK(irq) & IXDP2351_INTA_IRQ_VALID) { + set_irq_flags(irq, IRQF_VALID); + set_irq_handler(irq, do_level_IRQ); + set_irq_chip(irq, &ixdp2351_inta_chip); + } + } + + for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE); + irq < + IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + IXDP2351_INTB_IRQ_NUM); + irq++) { + if (IXDP2351_INTB_IRQ_MASK(irq) & IXDP2351_INTB_IRQ_VALID) { + set_irq_flags(irq, IRQF_VALID); + set_irq_handler(irq, do_level_IRQ); + set_irq_chip(irq, &ixdp2351_intb_chip); + } + } + + set_irq_chained_handler(IRQ_IXP23XX_INTA, &ixdp2351_inta_handler); + set_irq_chained_handler(IRQ_IXP23XX_INTB, &ixdp2351_intb_handler); +} + +/* + * IXDP2351 PCI + */ + +/* + * This board does not do normal PCI IRQ routing, or any + * sort of swizzling, so we just need to check where on the + * bus the device is and figure out what CPLD pin it is + * being routed to. + */ +#define DEVPIN(dev, pin) ((pin) | ((dev) << 3)) + +static int __init ixdp2351_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + u8 bus = dev->bus->number; + u32 devpin = DEVPIN(PCI_SLOT(dev->devfn), pin); + struct pci_bus *tmp_bus = dev->bus; + + /* Primary bus, no interrupts here */ + if (!bus) + return -1; + + /* Lookup first leaf in bus tree */ + while ((tmp_bus->parent != NULL) && (tmp_bus->parent->parent != NULL)) + tmp_bus = tmp_bus->parent; + + /* Select between known bridges */ + switch (tmp_bus->self->devfn | (tmp_bus->self->bus->number << 8)) { + /* Device is located after first bridge */ + case 0x0008: + if (tmp_bus == dev->bus) { + /* Device is located directy after first bridge */ + switch (devpin) { + /* Onboard 82546 */ + case DEVPIN(1, 1): /* Onboard 82546 ch 0 */ + return IRQ_IXDP2351_INTA_82546; + case DEVPIN(1, 2): /* Onboard 82546 ch 1 */ + return IRQ_IXDP2351_INTB_82546; + /* PMC SLOT */ + case DEVPIN(0, 1): /* PMCP INTA# */ + case DEVPIN(2, 4): /* PMCS INTD# */ + return IRQ_IXDP2351_SPCI_PMC_INTA; + case DEVPIN(0, 2): /* PMCP INTB# */ + case DEVPIN(2, 1): /* PMCS INTA# */ + return IRQ_IXDP2351_SPCI_PMC_INTB; + case DEVPIN(0, 3): /* PMCP INTC# */ + case DEVPIN(2, 2): /* PMCS INTB# */ + return IRQ_IXDP2351_SPCI_PMC_INTC; + case DEVPIN(0, 4): /* PMCP INTD# */ + case DEVPIN(2, 3): /* PMCS INTC# */ + return IRQ_IXDP2351_SPCI_PMC_INTD; + } + } else { + /* Device is located indirectly after first bridge */ + /* Not supported now */ + return -1; + } + break; + case 0x0010: + if (tmp_bus == dev->bus) { + /* Device is located directy after second bridge */ + /* Secondary bus of second bridge */ + switch (devpin) { + case DEVPIN(0, 1): /* DB#0 */ + case DEVPIN(0, 2): + case DEVPIN(0, 3): + case DEVPIN(0, 4): + return IRQ_IXDP2351_SPCI_DB_0; + case DEVPIN(1, 1): /* DB#1 */ + case DEVPIN(1, 2): + case DEVPIN(1, 3): + case DEVPIN(1, 4): + return IRQ_IXDP2351_SPCI_DB_1; + case DEVPIN(2, 1): /* FIC1 */ + case DEVPIN(2, 2): + case DEVPIN(2, 3): + case DEVPIN(2, 4): + case DEVPIN(3, 1): /* FIC2 */ + case DEVPIN(3, 2): + case DEVPIN(3, 3): + case DEVPIN(3, 4): + return IRQ_IXDP2351_SPCI_FIC; + } + } else { + /* Device is located indirectly after second bridge */ + /* Not supported now */ + return -1; + } + break; + } + + return -1; +} + +struct hw_pci ixdp2351_pci __initdata = { + .nr_controllers = 1, + .preinit = ixp23xx_pci_preinit, + .setup = ixp23xx_pci_setup, + .scan = ixp23xx_pci_scan_bus, + .map_irq = ixdp2351_map_irq, +}; + +int __init ixdp2351_pci_init(void) +{ + if (machine_is_ixdp2351()) + pci_common_init(&ixdp2351_pci); + + return 0; +} + +subsys_initcall(ixdp2351_pci_init); + +/* + * IXDP2351 Static Mapped I/O + */ +static struct map_desc ixdp2351_io_desc[] __initdata = { + { + .virtual = IXDP2351_NP_VIRT_BASE, + .pfn = __phys_to_pfn((u64)IXDP2351_NP_PHYS_BASE), + .length = IXDP2351_NP_PHYS_SIZE, + .type = MT_DEVICE + }, { + .virtual = IXDP2351_BB_BASE_VIRT, + .pfn = __phys_to_pfn((u64)IXDP2351_BB_BASE_PHYS), + .length = IXDP2351_BB_SIZE, + .type = MT_DEVICE + } +}; + +static void __init ixdp2351_map_io(void) +{ + ixp23xx_map_io(); + iotable_init(ixdp2351_io_desc, ARRAY_SIZE(ixdp2351_io_desc)); +} + +static void __init ixdp2351_init(void) +{ + physmap_configure(0x90000000, 0x04000000, 1, NULL); + + /* + * Mark flash as writeable + */ + IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE; + + ixp23xx_sys_init(); +} + +MACHINE_START(IXDP2351, "Intel IXDP2351 Development Platform") + /* Maintainer: MontaVista Software, Inc. */ + .phys_io = IXP23XX_PERIPHERAL_PHYS, + .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, + .map_io = ixdp2351_map_io, + .init_irq = ixdp2351_init_irq, + .timer = &ixp23xx_timer, + .boot_params = 0x00000100, + .init_machine = ixdp2351_init, +MACHINE_END diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c new file mode 100644 index 000000000000..5330ad78c1bb --- /dev/null +++ b/arch/arm/mach-ixp23xx/pci.c @@ -0,0 +1,275 @@ +/* + * arch/arm/mach-ixp23xx/pci.c + * + * PCI routines for IXP23XX based systems + * + * Copyright (c) 2005 MontaVista Software, Inc. + * + * based on original code: + * + * Author: Naeem Afzal <naeem.m.afzal@intel.com> + * Copyright 2002-2005 Intel Corp. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/config.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/slab.h> +#include <linux/delay.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/sizes.h> +#include <asm/system.h> +#include <asm/mach/pci.h> +#include <asm/mach-types.h> +#include <asm/hardware.h> + +extern int (*external_fault) (unsigned long, struct pt_regs *); + +static int pci_master_aborts = 0; + +#ifdef DEBUG +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +int clear_master_aborts(void); + +static u32 +*ixp23xx_pci_config_addr(unsigned int bus_nr, unsigned int devfn, int where) +{ + u32 *paddress; + + /* + * Must be dword aligned + */ + where &= ~3; + + /* + * For top bus, generate type 0, else type 1 + */ + if (!bus_nr) { + if (PCI_SLOT(devfn) >= 8) + return 0; + + paddress = (u32 *) (IXP23XX_PCI_CFG0_VIRT + | (1 << (PCI_SLOT(devfn) + 16)) + | (PCI_FUNC(devfn) << 8) | where); + } else { + paddress = (u32 *) (IXP23XX_PCI_CFG1_VIRT + | (bus_nr << 16) + | (PCI_SLOT(devfn) << 11) + | (PCI_FUNC(devfn) << 8) | where); + } + + return paddress; +} + +/* + * Mask table, bits to mask for quantity of size 1, 2 or 4 bytes. + * 0 and 3 are not valid indexes... + */ +static u32 bytemask[] = { + /*0*/ 0, + /*1*/ 0xff, + /*2*/ 0xffff, + /*3*/ 0, + /*4*/ 0xffffffff, +}; + +static int ixp23xx_pci_read_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *value) +{ + u32 n; + u32 *addr; + + n = where % 4; + + DBG("In config_read(%d) %d from dev %d:%d:%d\n", size, where, + bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn)); + + addr = ixp23xx_pci_config_addr(bus->number, devfn, where); + if (!addr) + return PCIBIOS_DEVICE_NOT_FOUND; + + pci_master_aborts = 0; + *value = (*addr >> (8*n)) & bytemask[size]; + if (pci_master_aborts) { + pci_master_aborts = 0; + *value = 0xffffffff; + return PCIBIOS_DEVICE_NOT_FOUND; + } + + return PCIBIOS_SUCCESSFUL; +} + +/* + * We don't do error checking on the address for writes. + * It's assumed that the user checked for the device existing first + * by doing a read first. + */ +static int ixp23xx_pci_write_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 value) +{ + u32 mask; + u32 *addr; + u32 temp; + + mask = ~(bytemask[size] << ((where % 0x4) * 8)); + addr = ixp23xx_pci_config_addr(bus->number, devfn, where); + if (!addr) + return PCIBIOS_DEVICE_NOT_FOUND; + temp = (u32) (value) << ((where % 0x4) * 8); + *addr = (*addr & mask) | temp; + + clear_master_aborts(); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops ixp23xx_pci_ops = { + .read = ixp23xx_pci_read_config, + .write = ixp23xx_pci_write_config, +}; + +struct pci_bus *ixp23xx_pci_scan_bus(int nr, struct pci_sys_data *sysdata) +{ + return pci_scan_bus(sysdata->busnr, &ixp23xx_pci_ops, sysdata); +} + +int ixp23xx_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs) +{ + volatile unsigned long temp; + unsigned long flags; + + pci_master_aborts = 1; + + local_irq_save(flags); + temp = *IXP23XX_PCI_CONTROL; + + /* + * master abort and cmd tgt err + */ + if (temp & ((1 << 8) | (1 << 5))) + *IXP23XX_PCI_CONTROL = temp; + + temp = *IXP23XX_PCI_CMDSTAT; + + if (temp & (1 << 29)) + *IXP23XX_PCI_CMDSTAT = temp; + local_irq_restore(flags); + + /* + * If it was an imprecise abort, then we need to correct the + * return address to be _after_ the instruction. + */ + if (fsr & (1 << 10)) + regs->ARM_pc += 4; + + return 0; +} + +int clear_master_aborts(void) +{ + volatile u32 temp; + + temp = *IXP23XX_PCI_CONTROL; + + /* + * master abort and cmd tgt err + */ + if (temp & ((1 << 8) | (1 << 5))) + *IXP23XX_PCI_CONTROL = temp; + + temp = *IXP23XX_PCI_CMDSTAT; + + if (temp & (1 << 29)) + *IXP23XX_PCI_CMDSTAT = temp; + + return 0; +} + +void __init ixp23xx_pci_preinit(void) +{ +#ifdef __ARMEB__ + *IXP23XX_PCI_CONTROL |= 0x20000; /* set I/O swapping */ +#endif + /* + * ADDR_31 needs to be clear for PCI memory access to CPP memory + */ + *IXP23XX_CPP2XSI_CURR_XFER_REG3 &= ~IXP23XX_CPP2XSI_ADDR_31; + *IXP23XX_CPP2XSI_CURR_XFER_REG3 |= IXP23XX_CPP2XSI_PSH_OFF; + + /* + * Select correct memory for PCI inbound transactions + */ + if (ixp23xx_cpp_boot()) { + *IXP23XX_PCI_CPP_ADDR_BITS &= ~(1 << 1); + } else { + *IXP23XX_PCI_CPP_ADDR_BITS |= (1 << 1); + } + + hook_fault_code(16+6, ixp23xx_pci_abort_handler, SIGBUS, + "PCI config cycle to non-existent device"); + + *IXP23XX_PCI_ADDR_EXT = 0x0000e000; +} + +/* + * Prevent PCI layer from seeing the inbound host-bridge resources + */ +static void __devinit pci_fixup_ixp23xx(struct pci_dev *dev) +{ + int i; + + dev->class &= 0xff; + dev->class |= PCI_CLASS_BRIDGE_HOST << 8; + for (i = 0; i < PCI_NUM_RESOURCES; i++) { + dev->resource[i].start = 0; + dev->resource[i].end = 0; + dev->resource[i].flags = 0; + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9002, pci_fixup_ixp23xx); + +/* + * IXP2300 systems often have large resource requirements, so we just + * use our own resource space. + */ +static struct resource ixp23xx_pci_mem_space = { + .start = IXP23XX_PCI_MEM_START, + .end = IXP23XX_PCI_MEM_START + IXP23XX_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM, + .name = "PCI Mem Space" +}; + +static struct resource ixp23xx_pci_io_space = { + .start = 0x00000100, + .end = 0x01ffffff, + .flags = IORESOURCE_IO, + .name = "PCI I/O Space" +}; + +int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys) +{ + if (nr >= 1) + return 0; + + sys->resource[0] = &ixp23xx_pci_io_space; + sys->resource[1] = &ixp23xx_pci_mem_space; + sys->resource[2] = NULL; + + return 1; +} diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c new file mode 100644 index 000000000000..43c14e740794 --- /dev/null +++ b/arch/arm/mach-ixp23xx/roadrunner.c @@ -0,0 +1,164 @@ +/* + * arch/arm/mach-ixp23xx/roadrunner.c + * + * RoadRunner board-specific routines + * + * Author: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright 2005 (c) MontaVista Software, Inc. + * + * Based on 2.4 code Copyright 2005 (c) ADI Engineering Corporation + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/spinlock.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/serial.h> +#include <linux/tty.h> +#include <linux/bitops.h> +#include <linux/ioport.h> +#include <linux/serial.h> +#include <linux/serial_8250.h> +#include <linux/serial_core.h> +#include <linux/device.h> +#include <linux/mm.h> +#include <linux/pci.h> +#include <linux/mtd/physmap.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/hardware.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/tlbflush.h> +#include <asm/pgtable.h> + +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/pci.h> + +/* + * Interrupt mapping + */ +#define INTA IRQ_ROADRUNNER_PCI_INTA +#define INTB IRQ_ROADRUNNER_PCI_INTB +#define INTC IRQ_ROADRUNNER_PCI_INTC +#define INTD IRQ_ROADRUNNER_PCI_INTD + +#define INTC_PIN IXP23XX_GPIO_PIN_11 +#define INTD_PIN IXP23XX_GPIO_PIN_12 + +static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin) +{ + static int pci_card_slot_irq[] = {INTB, INTC, INTD, INTA}; + static int pmc_card_slot_irq[] = {INTA, INTB, INTC, INTD}; + static int usb_irq[] = {INTB, INTC, INTD, -1}; + static int mini_pci_1_irq[] = {INTB, INTC, -1, -1}; + static int mini_pci_2_irq[] = {INTC, INTD, -1, -1}; + + switch(dev->bus->number) { + case 0: + switch(dev->devfn) { + case 0x0: // PCI-PCI bridge + break; + case 0x8: // PCI Card Slot + return pci_card_slot_irq[pin - 1]; + case 0x10: // PMC Slot + return pmc_card_slot_irq[pin - 1]; + case 0x18: // PMC Slot Secondary Agent + break; + case 0x20: // IXP Processor + break; + default: + return NO_IRQ; + } + break; + + case 1: + switch(dev->devfn) { + case 0x0: // IDE Controller + return (pin == 1) ? INTC : -1; + case 0x8: // USB fun 0 + case 0x9: // USB fun 1 + case 0xa: // USB fun 2 + return usb_irq[pin - 1]; + case 0x10: // Mini PCI 1 + return mini_pci_1_irq[pin-1]; + case 0x18: // Mini PCI 2 + return mini_pci_2_irq[pin-1]; + case 0x20: // MEM slot + return (pin == 1) ? INTA : -1; + default: + return NO_IRQ; + } + break; + + default: + return NO_IRQ; + } + + return NO_IRQ; +} + +static void roadrunner_pci_preinit(void) +{ + set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQT_LOW); + set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQT_LOW); + + ixp23xx_pci_preinit(); +} + +static struct hw_pci roadrunner_pci __initdata = { + .nr_controllers = 1, + .preinit = roadrunner_pci_preinit, + .setup = ixp23xx_pci_setup, + .scan = ixp23xx_pci_scan_bus, + .map_irq = roadrunner_map_irq, +}; + +static int __init roadrunner_pci_init(void) +{ + if (machine_is_roadrunner()) + pci_common_init(&roadrunner_pci); + + return 0; +}; + +subsys_initcall(roadrunner_pci_init); + +static void __init roadrunner_init(void) +{ + physmap_configure(0x90000000, 0x04000000, 2, NULL); + + /* + * Mark flash as writeable + */ + IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE; + IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE; + + ixp23xx_sys_init(); +} + +MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform") + /* Maintainer: Deepak Saxena */ + .phys_io = IXP23XX_PERIPHERAL_PHYS, + .io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc, + .map_io = ixp23xx_map_io, + .init_irq = ixp23xx_init_irq, + .timer = &ixp23xx_timer, + .boot_params = 0x00000100, + .init_machine = roadrunner_init, +MACHINE_END diff --git a/arch/arm/mach-omap1/board-netstar.c b/arch/arm/mach-omap1/board-netstar.c index 60d5f8a3339c..7520e602d7a2 100644 --- a/arch/arm/mach-omap1/board-netstar.c +++ b/arch/arm/mach-omap1/board-netstar.c @@ -141,7 +141,7 @@ static int __init netstar_late_init(void) /* TODO: Setup front panel switch here */ /* Setup panic notifier */ - notifier_chain_register(&panic_notifier_list, &panic_block); + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); return 0; } diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c index bfd5fdd1a875..52e4a9d69642 100644 --- a/arch/arm/mach-omap1/board-voiceblue.c +++ b/arch/arm/mach-omap1/board-voiceblue.c @@ -235,7 +235,7 @@ static struct notifier_block panic_block = { static int __init voiceblue_setup(void) { /* Setup panic notifier */ - notifier_chain_register(&panic_notifier_list, &panic_block); + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); return 0; } diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index c1d77f5b3823..0104fd142e70 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -10,6 +10,11 @@ config ARCH_LUBBOCK select PXA25x select SA1111 +config MACH_LOGICPD_PXA270 + bool "LogicPD PXA270 Card Engine Development Platform" + select PXA27x + select IWMMXT + config MACH_MAINSTONE bool "Intel HCDDBBVA0 Development Platform" select PXA27x diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 382644401a4d..4e8a983e2b83 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_PXA27x) += pxa27x.o # Specific board support obj-$(CONFIG_ARCH_LUBBOCK) += lubbock.o +obj-$(CONFIG_MACH_LOGICPD_PXA270) += lpd270.o obj-$(CONFIG_MACH_MAINSTONE) += mainstone.o obj-$(CONFIG_ARCH_PXA_IDP) += idp.o obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o corgi_ssp.o corgi_lcd.o sharpsl_pm.o corgi_pm.o diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 9b48a90aefce..5efa84749f37 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -319,6 +319,11 @@ void __init pxa_set_ficp_info(struct pxaficp_platform_data *info) pxaficp_device.dev.platform_data = info; } +static struct platform_device pxartc_device = { + .name = "sa1100-rtc", + .id = -1, +}; + static struct platform_device *devices[] __initdata = { &pxamci_device, &udc_device, @@ -329,6 +334,7 @@ static struct platform_device *devices[] __initdata = { &pxaficp_device, &i2c_device, &i2s_device, + &pxartc_device, }; static int __init pxa_init(void) diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c new file mode 100644 index 000000000000..ec0f43a102c7 --- /dev/null +++ b/arch/arm/mach-pxa/lpd270.c @@ -0,0 +1,393 @@ +/* + * linux/arch/arm/mach-pxa/lpd270.c + * + * Support for the LogicPD PXA270 Card Engine. + * Derived from the mainstone code, which carries these notices: + * + * Author: Nicolas Pitre + * Created: Nov 05, 2002 + * Copyright: MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/sysdev.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/bitops.h> +#include <linux/fb.h> +#include <linux/ioport.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> + +#include <asm/types.h> +#include <asm/setup.h> +#include <asm/memory.h> +#include <asm/mach-types.h> +#include <asm/hardware.h> +#include <asm/irq.h> +#include <asm/sizes.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> +#include <asm/mach/flash.h> + +#include <asm/arch/pxa-regs.h> +#include <asm/arch/lpd270.h> +#include <asm/arch/audio.h> +#include <asm/arch/pxafb.h> +#include <asm/arch/mmc.h> +#include <asm/arch/irda.h> +#include <asm/arch/ohci.h> + +#include "generic.h" + + +static unsigned int lpd270_irq_enabled; + +static void lpd270_mask_irq(unsigned int irq) +{ + int lpd270_irq = irq - LPD270_IRQ(0); + + __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS); + + lpd270_irq_enabled &= ~(1 << lpd270_irq); + __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); +} + +static void lpd270_unmask_irq(unsigned int irq) +{ + int lpd270_irq = irq - LPD270_IRQ(0); + + lpd270_irq_enabled |= 1 << lpd270_irq; + __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); +} + +static struct irqchip lpd270_irq_chip = { + .ack = lpd270_mask_irq, + .mask = lpd270_mask_irq, + .unmask = lpd270_unmask_irq, +}; + +static void lpd270_irq_handler(unsigned int irq, struct irqdesc *desc, + struct pt_regs *regs) +{ + unsigned long pending; + + pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled; + do { + GEDR(0) = GPIO_bit(0); /* clear useless edge notification */ + if (likely(pending)) { + irq = LPD270_IRQ(0) + __ffs(pending); + desc = irq_desc + irq; + desc_handle_irq(irq, desc, regs); + + pending = __raw_readw(LPD270_INT_STATUS) & + lpd270_irq_enabled; + } + } while (pending); +} + +static void __init lpd270_init_irq(void) +{ + int irq; + + pxa_init_irq(); + + __raw_writew(0, LPD270_INT_MASK); + __raw_writew(0, LPD270_INT_STATUS); + + /* setup extra LogicPD PXA270 irqs */ + for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) { + set_irq_chip(irq, &lpd270_irq_chip); + set_irq_handler(irq, do_level_IRQ); + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); + } + set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler); + set_irq_type(IRQ_GPIO(0), IRQT_FALLING); +} + + +#ifdef CONFIG_PM +static int lpd270_irq_resume(struct sys_device *dev) +{ + __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK); + return 0; +} + +static struct sysdev_class lpd270_irq_sysclass = { + set_kset_name("cpld_irq"), + .resume = lpd270_irq_resume, +}; + +static struct sys_device lpd270_irq_device = { + .cls = &lpd270_irq_sysclass, +}; + +static int __init lpd270_irq_device_init(void) +{ + int ret = sysdev_class_register(&lpd270_irq_sysclass); + if (ret == 0) + ret = sysdev_register(&lpd270_irq_device); + return ret; +} + +device_initcall(lpd270_irq_device_init); +#endif + + +static struct resource smc91x_resources[] = { + [0] = { + .start = LPD270_ETH_PHYS, + .end = (LPD270_ETH_PHYS + 0xfffff), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = LPD270_ETHERNET_IRQ, + .end = LPD270_ETHERNET_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static struct platform_device lpd270_audio_device = { + .name = "pxa2xx-ac97", + .id = -1, +}; + +static struct resource lpd270_flash_resources[] = { + [0] = { + .start = PXA_CS0_PHYS, + .end = PXA_CS0_PHYS + SZ_64M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = PXA_CS1_PHYS, + .end = PXA_CS1_PHYS + SZ_64M - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct mtd_partition lpd270_flash0_partitions[] = { + { + .name = "Bootloader", + .size = 0x00040000, + .offset = 0, + .mask_flags = MTD_WRITEABLE /* force read-only */ + }, { + .name = "Kernel", + .size = 0x00400000, + .offset = 0x00040000, + }, { + .name = "Filesystem", + .size = MTDPART_SIZ_FULL, + .offset = 0x00440000 + }, +}; + +static struct flash_platform_data lpd270_flash_data[2] = { + { + .name = "processor-flash", + .map_name = "cfi_probe", + .parts = lpd270_flash0_partitions, + .nr_parts = ARRAY_SIZE(lpd270_flash0_partitions), + }, { + .name = "mainboard-flash", + .map_name = "cfi_probe", + .parts = NULL, + .nr_parts = 0, + } +}; + +static struct platform_device lpd270_flash_device[2] = { + { + .name = "pxa2xx-flash", + .id = 0, + .dev = { + .platform_data = &lpd270_flash_data[0], + }, + .resource = &lpd270_flash_resources[0], + .num_resources = 1, + }, { + .name = "pxa2xx-flash", + .id = 1, + .dev = { + .platform_data = &lpd270_flash_data[1], + }, + .resource = &lpd270_flash_resources[1], + .num_resources = 1, + }, +}; + +static void lpd270_backlight_power(int on) +{ + if (on) { + pxa_gpio_mode(GPIO16_PWM0_MD); + pxa_set_cken(CKEN0_PWM0, 1); + PWM_CTRL0 = 0; + PWM_PWDUTY0 = 0x3ff; + PWM_PERVAL0 = 0x3ff; + } else { + PWM_CTRL0 = 0; + PWM_PWDUTY0 = 0x0; + PWM_PERVAL0 = 0x3FF; + pxa_set_cken(CKEN0_PWM0, 0); + } +} + +/* 5.7" TFT QVGA (LoLo display number 1) */ +static struct pxafb_mach_info sharp_lq057q3dc02 __initdata = { + .pixclock = 100000, + .xres = 240, + .yres = 320, + .bpp = 16, + .hsync_len = 64, + .left_margin = 0x27, + .right_margin = 0x09, + .vsync_len = 0x04, + .upper_margin = 0x08, + .lower_margin = 0x14, + .sync = 0, + .lccr0 = 0x07800080, + .lccr3 = 0x04400007, + .pxafb_backlight_power = lpd270_backlight_power, +}; + +/* 6.4" TFT VGA (LoLo display number 5) */ +static struct pxafb_mach_info sharp_lq64d343 __initdata = { + .pixclock = 20000, + .xres = 640, + .yres = 480, + .bpp = 16, + .hsync_len = 49, + .left_margin = 0x89, + .right_margin = 0x19, + .vsync_len = 18, + .upper_margin = 0x22, + .lower_margin = 0, + .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + .lccr0 = 0x07800080, + .lccr3 = 0x04400001, + .pxafb_backlight_power = lpd270_backlight_power, +}; + +/* 3.5" TFT QVGA (LoLo display number 8) */ +static struct pxafb_mach_info sharp_lq035q7db02_20 __initdata = { + .pixclock = 100000, + .xres = 240, + .yres = 320, + .bpp = 16, + .hsync_len = 0x34, + .left_margin = 0x09, + .right_margin = 0x09, + .vsync_len = 0x08, + .upper_margin = 0x05, + .lower_margin = 0x14, + .sync = 0, + .lccr0 = 0x07800080, + .lccr3 = 0x04400007, + .pxafb_backlight_power = lpd270_backlight_power, +}; + +static struct platform_device *platform_devices[] __initdata = { + &smc91x_device, + &lpd270_audio_device, + &lpd270_flash_device[0], + &lpd270_flash_device[1], +}; + +static int lpd270_ohci_init(struct device *dev) +{ + /* setup Port1 GPIO pin. */ + pxa_gpio_mode(88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */ + pxa_gpio_mode(89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */ + + /* Set the Power Control Polarity Low and Power Sense + Polarity Low to active low. */ + UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) & + ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE); + + return 0; +} + +static struct pxaohci_platform_data lpd270_ohci_platform_data = { + .port_mode = PMM_PERPORT_MODE, + .init = lpd270_ohci_init, +}; + +static void __init lpd270_init(void) +{ + lpd270_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4; + lpd270_flash_data[1].width = 4; + + /* + * System bus arbiter setting: + * - Core_Park + * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4 + */ + ARB_CNTRL = ARB_CORE_PARK | 0x234; + + /* + * On LogicPD PXA270, we route AC97_SYSCLK via GPIO45. + */ + pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD); + + platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); + + // set_pxa_fb_info(&sharp_lq057q3dc02); + set_pxa_fb_info(&sharp_lq64d343); + // set_pxa_fb_info(&sharp_lq035q7db02_20); + + pxa_set_ohci_info(&lpd270_ohci_platform_data); +} + + +static struct map_desc lpd270_io_desc[] __initdata = { + { + .virtual = LPD270_CPLD_VIRT, + .pfn = __phys_to_pfn(LPD270_CPLD_PHYS), + .length = LPD270_CPLD_SIZE, + .type = MT_DEVICE, + }, +}; + +static void __init lpd270_map_io(void) +{ + pxa_map_io(); + iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc)); + + /* initialize sleep mode regs (wake-up sources, etc) */ + PGSR0 = 0x00008800; + PGSR1 = 0x00000002; + PGSR2 = 0x0001FC00; + PGSR3 = 0x00001F81; + PWER = 0xC0000002; + PRER = 0x00000002; + PFER = 0x00000002; + + /* for use I SRAM as framebuffer. */ + PSLR |= 0x00000F04; + PCFR = 0x00000066; +} + +MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine") + /* Maintainer: Peter Barada */ + .phys_io = 0x40000000, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .boot_params = 0xa0000100, + .map_io = lpd270_map_io, + .init_irq = lpd270_init_irq, + .timer = &pxa_timer, + .init_machine = lpd270_init, +MACHINE_END diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 30ec317bbb97..0dbb079ecd25 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -467,6 +467,8 @@ struct platform_device akitaioexp_device = { .id = -1, }; +EXPORT_SYMBOL_GPL(akitaioexp_device); + static void __init akita_init(void) { spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode; diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig index 6923316b3d0d..cd67ab1b217b 100644 --- a/arch/arm/mach-sa1100/Kconfig +++ b/arch/arm/mach-sa1100/Kconfig @@ -111,7 +111,7 @@ config SA1100_LART bool "LART" help Say Y here if you are using the Linux Advanced Radio Terminal - (also known as the LART). See <http://www.lart.tudelft.nl/> for + (also known as the LART). See <http://www.lartmaker.nl/> for information on the LART. config SA1100_PLEB diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/arch/arm/mach-sa1100/cpu-sa1100.c index 6435b2e48ffa..d68630b74d78 100644 --- a/arch/arm/mach-sa1100/cpu-sa1100.c +++ b/arch/arm/mach-sa1100/cpu-sa1100.c @@ -11,7 +11,7 @@ * linux-2.4.5-rmk1 * * This software has been developed while working on the LART - * computing board (http://www.lart.tudelft.nl/), which is + * computing board (http://www.lartmaker.nl/), which is * sponsored by the Mobile Multi-media Communications * (http://www.mmc.tudelft.nl/) and Ubiquitous Communications * (http://www.ubicom.tudelft.nl/) projects. diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 2abdc419e984..9ea71551fc04 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -324,6 +324,11 @@ void sa11x0_set_irda_data(struct irda_platform_data *irda) sa11x0ir_device.dev.platform_data = irda; } +static struct platform_device sa11x0rtc_device = { + .name = "sa1100-rtc", + .id = -1, +}; + static struct platform_device *sa11x0_devices[] __initdata = { &sa11x0udc_device, &sa11x0uart1_device, @@ -333,6 +338,7 @@ static struct platform_device *sa11x0_devices[] __initdata = { &sa11x0pcmcia_device, &sa11x0fb_device, &sa11x0mtd_device, + &sa11x0rtc_device, }; static int __init sa1100_init(void) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index e680c5fd93b5..c55b739e10ba 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -239,6 +239,17 @@ config CPU_XSCALE select CPU_CACHE_VIVT select CPU_TLB_V4WBI +# XScale Core Version 3 +config CPU_XSC3 + bool + depends on ARCH_IXP23XX + default y + select CPU_32v5 + select CPU_ABRT_EV5T + select CPU_CACHE_VIVT + select CPU_TLB_V4WBI + select IO_36 + # ARMv6 config CPU_V6 bool "Support ARM V6 processor" @@ -361,11 +372,17 @@ config CPU_TLB_V4WBI config CPU_TLB_V6 bool +# +# CPU supports 36-bit I/O +# +config IO_36 + bool + comment "Processor Features" config ARM_THUMB bool "Support Thumb user binaries" - depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_V6 + depends on CPU_ARM720T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 default y help Say Y if you want to include kernel support for running user space diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index ffe73ba2bf17..07a538505784 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_CPU_COPY_V4WB) += copypage-v4wb.o obj-$(CONFIG_CPU_COPY_V6) += copypage-v6.o mmu.o obj-$(CONFIG_CPU_SA1100) += copypage-v4mc.o obj-$(CONFIG_CPU_XSCALE) += copypage-xscale.o +obj-$(CONFIG_CPU_XSC3) += copypage-xsc3.o obj-$(CONFIG_CPU_TLB_V3) += tlb-v3.o obj-$(CONFIG_CPU_TLB_V4WT) += tlb-v4.o @@ -51,4 +52,5 @@ obj-$(CONFIG_CPU_ARM1026) += proc-arm1026.o obj-$(CONFIG_CPU_SA110) += proc-sa110.o obj-$(CONFIG_CPU_SA1100) += proc-sa1100.o obj-$(CONFIG_CPU_XSCALE) += proc-xscale.o +obj-$(CONFIG_CPU_XSC3) += proc-xsc3.o obj-$(CONFIG_CPU_V6) += proc-v6.o diff --git a/arch/arm/mm/copypage-xsc3.S b/arch/arm/mm/copypage-xsc3.S new file mode 100644 index 000000000000..9a2cb4332b4c --- /dev/null +++ b/arch/arm/mm/copypage-xsc3.S @@ -0,0 +1,97 @@ +/* + * linux/arch/arm/lib/copypage-xsc3.S + * + * Copyright (C) 2004 Intel Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Adapted for 3rd gen XScale core, no more mini-dcache + * Author: Matt Gilbert (matthew.m.gilbert@intel.com) + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/asm-offsets.h> + +/* + * General note: + * We don't really want write-allocate cache behaviour for these functions + * since that will just eat through 8K of the cache. + */ + + .text + .align 5 +/* + * XSC3 optimised copy_user_page + * r0 = destination + * r1 = source + * r2 = virtual user address of ultimate destination page + * + * The source page may have some clean entries in the cache already, but we + * can safely ignore them - break_cow() will flush them out of the cache + * if we eventually end up using our copied page. + * + */ +ENTRY(xsc3_mc_copy_user_page) + stmfd sp!, {r4, r5, lr} + mov lr, #PAGE_SZ/64-1 + + pld [r1, #0] + pld [r1, #32] +1: pld [r1, #64] + pld [r1, #96] + +2: ldrd r2, [r1], #8 + mov ip, r0 + ldrd r4, [r1], #8 + mcr p15, 0, ip, c7, c6, 1 @ invalidate + strd r2, [r0], #8 + ldrd r2, [r1], #8 + strd r4, [r0], #8 + ldrd r4, [r1], #8 + strd r2, [r0], #8 + strd r4, [r0], #8 + ldrd r2, [r1], #8 + mov ip, r0 + ldrd r4, [r1], #8 + mcr p15, 0, ip, c7, c6, 1 @ invalidate + strd r2, [r0], #8 + ldrd r2, [r1], #8 + subs lr, lr, #1 + strd r4, [r0], #8 + ldrd r4, [r1], #8 + strd r2, [r0], #8 + strd r4, [r0], #8 + bgt 1b + beq 2b + + ldmfd sp!, {r4, r5, pc} + + .align 5 +/* + * XScale optimised clear_user_page + * r0 = destination + * r1 = virtual user address of ultimate destination page + */ +ENTRY(xsc3_mc_clear_user_page) + mov r1, #PAGE_SZ/32 + mov r2, #0 + mov r3, #0 +1: mcr p15, 0, r0, c7, c6, 1 @ invalidate line + strd r2, [r0], #8 + strd r2, [r0], #8 + strd r2, [r0], #8 + strd r2, [r0], #8 + subs r1, r1, #1 + bne 1b + mov pc, lr + + __INITDATA + + .type xsc3_mc_user_fns, #object +ENTRY(xsc3_mc_user_fns) + .long xsc3_mc_clear_user_page + .long xsc3_mc_copy_user_page + .size xsc3_mc_user_fns, . - xsc3_mc_user_fns diff --git a/arch/arm/mm/mm-armv.c b/arch/arm/mm/mm-armv.c index ef8d30a185a9..5e5d05bcad50 100644 --- a/arch/arm/mm/mm-armv.c +++ b/arch/arm/mm/mm-armv.c @@ -557,7 +557,8 @@ void __init create_mapping(struct map_desc *md) * supersections are only allocated for domain 0 regardless * of the actual domain assignments in use. */ - if (cpu_architecture() >= CPU_ARCH_ARMv6 && domain == 0) { + if ((cpu_architecture() >= CPU_ARCH_ARMv6 || cpu_is_xsc3()) + && domain == 0) { /* * Align to supersection boundary if !high pages. * High pages have already been checked for proper diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S index 9a7e7c096aa9..ee6f15298735 100644 --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -21,6 +21,14 @@ #define D_CACHE_LINE_SIZE 32 +#define TTB_C (1 << 0) +#define TTB_S (1 << 1) +#define TTB_IMP (1 << 2) +#define TTB_RGN_NC (0 << 3) +#define TTB_RGN_WBWA (1 << 3) +#define TTB_RGN_WT (2 << 3) +#define TTB_RGN_WB (3 << 3) + .macro cpsie, flags .ifc \flags, f .long 0xf1080040 @@ -115,7 +123,7 @@ ENTRY(cpu_v6_switch_mm) mov r2, #0 ldr r1, [r1, #MM_CONTEXT_ID] @ get mm->context.id #ifdef CONFIG_SMP - orr r0, r0, #2 @ set shared pgtable + orr r0, r0, #TTB_RGN_WBWA|TTB_S @ mark PTWs shared, outer cacheable #endif mcr p15, 0, r2, c7, c5, 6 @ flush BTAC/BTB mcr p15, 0, r2, c7, c10, 4 @ drain write buffer @@ -161,8 +169,8 @@ ENTRY(cpu_v6_set_pte) tst r1, #L_PTE_YOUNG biceq r2, r2, #PTE_EXT_APX | PTE_EXT_AP_MASK -@ tst r1, #L_PTE_EXEC -@ orreq r2, r2, #PTE_EXT_XN + tst r1, #L_PTE_EXEC + orreq r2, r2, #PTE_EXT_XN tst r1, #L_PTE_PRESENT moveq r2, #0 @@ -221,7 +229,7 @@ __v6_setup: mcr p15, 0, r0, c8, c7, 0 @ invalidate I + D TLBs mcr p15, 0, r0, c2, c0, 2 @ TTB control register #ifdef CONFIG_SMP - orr r4, r4, #2 @ set shared pgtable + orr r4, r4, #TTB_RGN_WBWA|TTB_S @ mark PTWs shared, outer cacheable #endif mcr p15, 0, r4, c2, c0, 1 @ load TTB1 #ifdef CONFIG_VFP diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S new file mode 100644 index 000000000000..f90513e9af0c --- /dev/null +++ b/arch/arm/mm/proc-xsc3.S @@ -0,0 +1,498 @@ +/* + * linux/arch/arm/mm/proc-xsc3.S + * + * Original Author: Matthew Gilbert + * Current Maintainer: Deepak Saxena <dsaxena@plexity.net> + * + * Copyright 2004 (C) Intel Corp. + * Copyright 2005 (c) MontaVista Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * MMU functions for the Intel XScale3 Core (XSC3). The XSC3 core is an + * extension to Intel's original XScale core that adds the following + * features: + * + * - ARMv6 Supersections + * - Low Locality Reference pages (replaces mini-cache) + * - 36-bit addressing + * - L2 cache + * - Cache-coherency if chipset supports it + * + * Based on orignal XScale code by Nicolas Pitre + */ + +#include <linux/linkage.h> +#include <linux/init.h> +#include <asm/assembler.h> +#include <asm/procinfo.h> +#include <asm/hardware.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/ptrace.h> +#include "proc-macros.S" + +/* + * This is the maximum size of an area which will be flushed. If the + * area is larger than this, then we flush the whole cache. + */ +#define MAX_AREA_SIZE 32768 + +/* + * The cache line size of the I and D cache. + */ +#define CACHELINESIZE 32 + +/* + * The size of the data cache. + */ +#define CACHESIZE 32768 + +/* + * Run with L2 enabled. + */ +#define L2_CACHE_ENABLE 1 + +/* + * Enable the Branch Target Buffer (can cause crashes, see erratum #42.) + */ +#define BTB_ENABLE 0 + +/* + * This macro is used to wait for a CP15 write and is needed + * when we have to ensure that the last operation to the co-pro + * was completed before continuing with operation. + */ + .macro cpwait_ret, lr, rd + mrc p15, 0, \rd, c2, c0, 0 @ arbitrary read of cp15 + sub pc, \lr, \rd, LSR #32 @ wait for completion and + @ flush instruction pipeline + .endm + +/* + * This macro cleans & invalidates the entire xsc3 dcache by set & way. + */ + + .macro clean_d_cache rd, rs + mov \rd, #0x1f00 + orr \rd, \rd, #0x00e0 +1: mcr p15, 0, \rd, c7, c14, 2 @ clean/inv set/way + adds \rd, \rd, #0x40000000 + bcc 1b + subs \rd, \rd, #0x20 + bpl 1b + .endm + + .text + +/* + * cpu_xsc3_proc_init() + * + * Nothing too exciting at the moment + */ +ENTRY(cpu_xsc3_proc_init) + mov pc, lr + +/* + * cpu_xsc3_proc_fin() + */ +ENTRY(cpu_xsc3_proc_fin) + str lr, [sp, #-4]! + mov r0, #PSR_F_BIT|PSR_I_BIT|SVC_MODE + msr cpsr_c, r0 + bl xsc3_flush_kern_cache_all @ clean caches + mrc p15, 0, r0, c1, c0, 0 @ ctrl register + bic r0, r0, #0x1800 @ ...IZ........... + bic r0, r0, #0x0006 @ .............CA. + mcr p15, 0, r0, c1, c0, 0 @ disable caches + ldr pc, [sp], #4 + +/* + * cpu_xsc3_reset(loc) + * + * Perform a soft reset of the system. Put the CPU into the + * same state as it would be if it had been reset, and branch + * to what would be the reset vector. + * + * loc: location to jump to for soft reset + */ + .align 5 +ENTRY(cpu_xsc3_reset) + mov r1, #PSR_F_BIT|PSR_I_BIT|SVC_MODE + msr cpsr_c, r1 @ reset CPSR + mrc p15, 0, r1, c1, c0, 0 @ ctrl register + bic r1, r1, #0x0086 @ ........B....CA. + bic r1, r1, #0x3900 @ ..VIZ..S........ + mcr p15, 0, r1, c1, c0, 0 @ ctrl register + mcr p15, 0, ip, c7, c7, 0 @ invalidate I,D caches & BTB + bic r1, r1, #0x0001 @ ...............M + mcr p15, 0, r1, c1, c0, 0 @ ctrl register + @ CAUTION: MMU turned off from this point. We count on the pipeline + @ already containing those two last instructions to survive. + mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs + mov pc, r0 + +/* + * cpu_xsc3_do_idle() + * + * Cause the processor to idle + * + * For now we do nothing but go to idle mode for every case + * + * XScale supports clock switching, but using idle mode support + * allows external hardware to react to system state changes. + + MMG: Come back to this one. + */ + .align 5 + +ENTRY(cpu_xsc3_do_idle) + mov r0, #1 + mcr p14, 0, r0, c7, c0, 0 @ Go to IDLE + mov pc, lr + +/* ================================= CACHE ================================ */ + +/* + * flush_user_cache_all() + * + * Invalidate all cache entries in a particular address + * space. + */ +ENTRY(xsc3_flush_user_cache_all) + /* FALLTHROUGH */ + +/* + * flush_kern_cache_all() + * + * Clean and invalidate the entire cache. + */ +ENTRY(xsc3_flush_kern_cache_all) + mov r2, #VM_EXEC + mov ip, #0 +__flush_whole_cache: + clean_d_cache r0, r1 + tst r2, #VM_EXEC + mcrne p15, 0, ip, c7, c5, 0 @ Invalidate I cache & BTB + mcrne p15, 0, ip, c7, c10, 4 @ Drain Write Buffer + mcrne p15, 0, ip, c7, c5, 4 @ Prefetch Flush + mov pc, lr + +/* + * flush_user_cache_range(start, end, vm_flags) + * + * Invalidate a range of cache entries in the specified + * address space. + * + * - start - start address (may not be aligned) + * - end - end address (exclusive, may not be aligned) + * - vma - vma_area_struct describing address space + */ + .align 5 +ENTRY(xsc3_flush_user_cache_range) + mov ip, #0 + sub r3, r1, r0 @ calculate total size + cmp r3, #MAX_AREA_SIZE + bhs __flush_whole_cache + +1: tst r2, #VM_EXEC + mcrne p15, 0, r0, c7, c5, 1 @ Invalidate I cache line + mcr p15, 0, r0, c7, c14, 1 @ Clean/invalidate D cache line + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + tst r2, #VM_EXEC + mcrne p15, 0, ip, c7, c5, 6 @ Invalidate BTB + mcrne p15, 0, ip, c7, c10, 4 @ Drain Write Buffer + mcrne p15, 0, ip, c7, c5, 4 @ Prefetch Flush + mov pc, lr + +/* + * coherent_kern_range(start, end) + * + * Ensure coherency between the Icache and the Dcache in the + * region described by start. If you have non-snooping + * Harvard caches, you need to implement this function. + * + * - start - virtual start address + * - end - virtual end address + * + * Note: single I-cache line invalidation isn't used here since + * it also trashes the mini I-cache used by JTAG debuggers. + */ +ENTRY(xsc3_coherent_kern_range) +/* FALLTHROUGH */ +ENTRY(xsc3_coherent_user_range) + bic r0, r0, #CACHELINESIZE - 1 +1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + mov r0, #0 + mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB + mcr p15, 0, r0, c7, c10, 4 @ Drain Write Buffer + mcr p15, 0, r0, c7, c5, 4 @ Prefetch Flush + mov pc, lr + +/* + * flush_kern_dcache_page(void *page) + * + * Ensure no D cache aliasing occurs, either with itself or + * the I cache + * + * - addr - page aligned address + */ +ENTRY(xsc3_flush_kern_dcache_page) + add r1, r0, #PAGE_SZ +1: mcr p15, 0, r0, c7, c14, 1 @ Clean/Invalidate D Cache line + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + mov r0, #0 + mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB + mcr p15, 0, r0, c7, c10, 4 @ Drain Write Buffer + mcr p15, 0, r0, c7, c5, 4 @ Prefetch Flush + mov pc, lr + +/* + * dma_inv_range(start, end) + * + * Invalidate (discard) the specified virtual address range. + * May not write back any entries. If 'start' or 'end' + * are not cache line aligned, those lines must be written + * back. + * + * - start - virtual start address + * - end - virtual end address + */ +ENTRY(xsc3_dma_inv_range) + tst r0, #CACHELINESIZE - 1 + bic r0, r0, #CACHELINESIZE - 1 + mcrne p15, 0, r0, c7, c10, 1 @ clean L1 D entry + mcrne p15, 1, r0, c7, c11, 1 @ clean L2 D entry + tst r1, #CACHELINESIZE - 1 + mcrne p15, 0, r1, c7, c10, 1 @ clean L1 D entry + mcrne p15, 1, r1, c7, c11, 1 @ clean L2 D entry +1: mcr p15, 0, r0, c7, c6, 1 @ invalidate L1 D entry + mcr p15, 1, r0, c7, c7, 1 @ Invalidate L2 D cache line + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + mcr p15, 0, r0, c7, c10, 4 @ Drain Write Buffer + mov pc, lr + +/* + * dma_clean_range(start, end) + * + * Clean the specified virtual address range. + * + * - start - virtual start address + * - end - virtual end address + */ +ENTRY(xsc3_dma_clean_range) + bic r0, r0, #CACHELINESIZE - 1 +1: mcr p15, 0, r0, c7, c10, 1 @ clean L1 D entry + mcr p15, 1, r0, c7, c11, 1 @ clean L2 D entry + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + mcr p15, 0, r0, c7, c10, 4 @ Drain Write Buffer + mov pc, lr + +/* + * dma_flush_range(start, end) + * + * Clean and invalidate the specified virtual address range. + * + * - start - virtual start address + * - end - virtual end address + */ +ENTRY(xsc3_dma_flush_range) + bic r0, r0, #CACHELINESIZE - 1 +1: mcr p15, 0, r0, c7, c14, 1 @ Clean/invalidate L1 D cache line + mcr p15, 1, r0, c7, c11, 1 @ Clean L2 D cache line + mcr p15, 1, r0, c7, c7, 1 @ Invalidate L2 D cache line + add r0, r0, #CACHELINESIZE + cmp r0, r1 + blo 1b + mcr p15, 0, r0, c7, c10, 4 @ Drain Write Buffer + mov pc, lr + +ENTRY(xsc3_cache_fns) + .long xsc3_flush_kern_cache_all + .long xsc3_flush_user_cache_all + .long xsc3_flush_user_cache_range + .long xsc3_coherent_kern_range + .long xsc3_coherent_user_range + .long xsc3_flush_kern_dcache_page + .long xsc3_dma_inv_range + .long xsc3_dma_clean_range + .long xsc3_dma_flush_range + +ENTRY(cpu_xsc3_dcache_clean_area) +1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry + add r0, r0, #CACHELINESIZE + subs r1, r1, #CACHELINESIZE + bhi 1b + mov pc, lr + +/* =============================== PageTable ============================== */ + +/* + * cpu_xsc3_switch_mm(pgd) + * + * Set the translation base pointer to be as described by pgd. + * + * pgd: new page tables + */ + .align 5 +ENTRY(cpu_xsc3_switch_mm) + clean_d_cache r1, r2 + mcr p15, 0, ip, c7, c5, 0 @ Invalidate I cache & BTB + mcr p15, 0, ip, c7, c10, 4 @ Drain Write Buffer + mcr p15, 0, ip, c7, c5, 4 @ Prefetch Flush +#ifdef L2_CACHE_ENABLE + orr r0, r0, #0x18 @ cache the page table in L2 +#endif + mcr p15, 0, r0, c2, c0, 0 @ load page table pointer + mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs + cpwait_ret lr, ip + +/* + * cpu_xsc3_set_pte(ptep, pte) + * + * Set a PTE and flush it out + * + */ + .align 5 +ENTRY(cpu_xsc3_set_pte) + str r1, [r0], #-2048 @ linux version + + bic r2, r1, #0xff0 + orr r2, r2, #PTE_TYPE_EXT @ extended page + + eor r3, r1, #L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_WRITE | L_PTE_DIRTY + + tst r3, #L_PTE_USER @ User? + orrne r2, r2, #PTE_EXT_AP_URO_SRW @ yes -> user r/o, system r/w + + tst r3, #L_PTE_WRITE | L_PTE_DIRTY @ Write and Dirty? + orreq r2, r2, #PTE_EXT_AP_UNO_SRW @ yes -> user n/a, system r/w + @ combined with user -> user r/w + +#if L2_CACHE_ENABLE + @ If its cacheable it needs to be in L2 also. + eor ip, r1, #L_PTE_CACHEABLE + tst ip, #L_PTE_CACHEABLE + orreq r2, r2, #PTE_EXT_TEX(0x5) +#endif + + tst r3, #L_PTE_PRESENT | L_PTE_YOUNG @ Present and Young? + movne r2, #0 @ no -> fault + + str r2, [r0] @ hardware version + mov ip, #0 + mcr p15, 0, r0, c7, c10, 1 @ Clean D cache line mcr + mcr p15, 0, ip, c7, c10, 4 @ Drain Write Buffer + mov pc, lr + + .ltorg + + .align + + __INIT + + .type __xsc3_setup, #function +__xsc3_setup: + mov r0, #PSR_F_BIT|PSR_I_BIT|SVC_MODE + msr cpsr_c, r0 + mcr p15, 0, ip, c7, c7, 0 @ invalidate I, D caches & BTB + mcr p15, 0, ip, c7, c10, 4 @ Drain Write Buffer + mcr p15, 0, ip, c7, c5, 4 @ Prefetch Flush + mcr p15, 0, ip, c8, c7, 0 @ invalidate I, D TLBs +#if L2_CACHE_ENABLE + orr r4, r4, #0x18 @ cache the page table in L2 +#endif + mcr p15, 0, r4, c2, c0, 0 @ load page table pointer + mov r0, #1 @ Allow access to CP0 and CP13 + orr r0, r0, #1 << 13 @ Its undefined whether this + mcr p15, 0, r0, c15, c1, 0 @ affects USR or SVC modes + mrc p15, 0, r0, c1, c0, 1 @ get auxiliary control reg + and r0, r0, #2 @ preserve bit P bit setting +#if L2_CACHE_ENABLE + orr r0, r0, #(1 << 10) @ enable L2 for LLR cache +#endif + mcr p15, 0, r0, c1, c0, 1 @ set auxiliary control reg + mrc p15, 0, r0, c1, c0, 0 @ get control register + bic r0, r0, #0x0200 @ .... ..R. .... .... + bic r0, r0, #0x0002 @ .... .... .... ..A. + orr r0, r0, #0x0005 @ .... .... .... .C.M +#if BTB_ENABLE + orr r0, r0, #0x3900 @ ..VI Z..S .... .... +#else + orr r0, r0, #0x3100 @ ..VI ...S .... .... +#endif +#if L2_CACHE_ENABLE + orr r0, r0, #0x4000000 @ L2 enable +#endif + mov pc, lr + + .size __xsc3_setup, . - __xsc3_setup + + __INITDATA + +/* + * Purpose : Function pointers used to access above functions - all calls + * come through these + */ + + .type xsc3_processor_functions, #object +ENTRY(xsc3_processor_functions) + .word v5t_early_abort + .word cpu_xsc3_proc_init + .word cpu_xsc3_proc_fin + .word cpu_xsc3_reset + .word cpu_xsc3_do_idle + .word cpu_xsc3_dcache_clean_area + .word cpu_xsc3_switch_mm + .word cpu_xsc3_set_pte + .size xsc3_processor_functions, . - xsc3_processor_functions + + .section ".rodata" + + .type cpu_arch_name, #object +cpu_arch_name: + .asciz "armv5te" + .size cpu_arch_name, . - cpu_arch_name + + .type cpu_elf_name, #object +cpu_elf_name: + .asciz "v5" + .size cpu_elf_name, . - cpu_elf_name + + .type cpu_xsc3_name, #object +cpu_xsc3_name: + .asciz "XScale-Core3" + .size cpu_xsc3_name, . - cpu_xsc3_name + + .align + + .section ".proc.info.init", #alloc, #execinstr + + .type __xsc3_proc_info,#object +__xsc3_proc_info: + .long 0x69056000 + .long 0xffffe000 + .long 0x00000c0e + b __xsc3_setup + .long cpu_arch_name + .long cpu_elf_name + .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP + .long cpu_xsc3_name + .long xsc3_processor_functions + .long v4wbi_tlb_fns + .long xsc3_mc_user_fns + .long xsc3_cache_fns + .size __xsc3_proc_info, . - __xsc3_proc_info diff --git a/arch/arm26/mm/init.c b/arch/arm26/mm/init.c index e3ecaa453747..7da8a5205678 100644 --- a/arch/arm26/mm/init.c +++ b/arch/arm26/mm/init.c @@ -23,6 +23,7 @@ #include <linux/initrd.h> #include <linux/bootmem.h> #include <linux/blkdev.h> +#include <linux/pfn.h> #include <asm/segment.h> #include <asm/mach-types.h> @@ -101,12 +102,6 @@ struct node_info { int bootmap_pages; }; -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_UP(x) (PAGE_ALIGN(x) >> PAGE_SHIFT) -#define PFN_SIZE(x) ((x) >> PAGE_SHIFT) -#define PFN_RANGE(s,e) PFN_SIZE(PAGE_ALIGN((unsigned long)(e)) - \ - (((unsigned long)(s)) & PAGE_MASK)) - /* * FIXME: We really want to avoid allocating the bootmap bitmap * over the top of the initrd. Hopefully, this is located towards diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c index 1ba57efff60d..619a6eefd893 100644 --- a/arch/cris/kernel/setup.c +++ b/arch/cris/kernel/setup.c @@ -18,6 +18,7 @@ #include <linux/seq_file.h> #include <linux/tty.h> #include <linux/utsname.h> +#include <linux/pfn.h> #include <asm/setup.h> @@ -88,10 +89,6 @@ setup_arch(char **cmdline_p) init_mm.end_data = (unsigned long) &_edata; init_mm.brk = (unsigned long) &_end; -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) - /* min_low_pfn points to the start of DRAM, start_pfn points * to the first DRAM pages after the kernel, and max_low_pfn * to the end of DRAM. diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index f7db71d0b913..f17bd1d2707e 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -231,6 +231,15 @@ config SCHED_SMT cost of slightly increased overhead in some places. If unsure say N here. +config SCHED_MC + bool "Multi-core scheduler support" + depends on SMP + default y + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. If unsure say N here. + source "kernel/Kconfig.preempt" config X86_UP_APIC diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S index 2ac40c8244c4..0000a2674537 100644 --- a/arch/i386/boot/video.S +++ b/arch/i386/boot/video.S @@ -1924,6 +1924,7 @@ skip10: movb %ah, %al ret store_edid: +#ifdef CONFIG_FB_FIRMWARE_EDID pushw %es # just save all registers pushw %ax pushw %bx @@ -1954,6 +1955,7 @@ store_edid: popw %bx popw %ax popw %es +#endif ret # VIDEO_SELECT-only variables diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 7e3d6b6a4e96..a06a49075f10 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -266,7 +266,7 @@ static void __init early_cpu_detect(void) void __cpuinit generic_identify(struct cpuinfo_x86 * c) { u32 tfms, xlvl; - int junk; + int ebx; if (have_cpuid_p()) { /* Get vendor name */ @@ -282,7 +282,7 @@ void __cpuinit generic_identify(struct cpuinfo_x86 * c) /* Intel-defined flags: level 0x00000001 */ if ( c->cpuid_level >= 0x00000001 ) { u32 capability, excap; - cpuid(0x00000001, &tfms, &junk, &excap, &capability); + cpuid(0x00000001, &tfms, &ebx, &excap, &capability); c->x86_capability[0] = capability; c->x86_capability[4] = excap; c->x86 = (tfms >> 8) & 15; @@ -292,6 +292,11 @@ void __cpuinit generic_identify(struct cpuinfo_x86 * c) if (c->x86 >= 0x6) c->x86_model += ((tfms >> 16) & 0xF) << 4; c->x86_mask = tfms & 15; +#ifdef CONFIG_SMP + c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0); +#else + c->apicid = (ebx >> 24) & 0xFF; +#endif } else { /* Have CPUID level 0 only - unheard of */ c->x86 = 4; @@ -474,7 +479,6 @@ void __cpuinit detect_ht(struct cpuinfo_x86 *c) cpuid(1, &eax, &ebx, &ecx, &edx); - c->apicid = phys_pkg_id((ebx >> 24) & 0xFF, 0); if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY)) return; diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index 1e70823e1cb5..712a26bd4457 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -1095,10 +1095,15 @@ static int __devexit powernowk8_cpu_exit (struct cpufreq_policy *pol) static unsigned int powernowk8_get (unsigned int cpu) { - struct powernow_k8_data *data = powernow_data[cpu]; + struct powernow_k8_data *data; cpumask_t oldmask = current->cpus_allowed; unsigned int khz = 0; + data = powernow_data[first_cpu(cpu_core_map[cpu])]; + + if (!data) + return -EINVAL; + set_cpus_allowed(current, cpumask_of_cpu(cpu)); if (smp_processor_id() != cpu) { printk(KERN_ERR PFX "limiting to CPU %d failed in powernowk8_get\n", cpu); diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h index 00ea899c17e1..79a7c5c87edc 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h @@ -182,10 +182,6 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid); static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index); -#ifndef for_each_cpu_mask -#define for_each_cpu_mask(i,mask) for (i=0;i<1;i++) -#endif - #ifdef CONFIG_SMP static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[]) { diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c index ce61921369e5..9df87b03612c 100644 --- a/arch/i386/kernel/cpu/intel_cacheinfo.c +++ b/arch/i386/kernel/cpu/intel_cacheinfo.c @@ -173,6 +173,10 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */ unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */ unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */ + unsigned int l2_id = 0, l3_id = 0, num_threads_sharing, index_msb; +#ifdef CONFIG_SMP + unsigned int cpu = (c == &boot_cpu_data) ? 0 : (c - cpu_data); +#endif if (c->cpuid_level > 3) { static int is_initialized; @@ -205,9 +209,15 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) break; case 2: new_l2 = this_leaf.size/1024; + num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing; + index_msb = get_count_order(num_threads_sharing); + l2_id = c->apicid >> index_msb; break; case 3: new_l3 = this_leaf.size/1024; + num_threads_sharing = 1 + this_leaf.eax.split.num_threads_sharing; + index_msb = get_count_order(num_threads_sharing); + l3_id = c->apicid >> index_msb; break; default: break; @@ -215,11 +225,19 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) } } } - if (c->cpuid_level > 1) { + /* + * Don't use cpuid2 if cpuid4 is supported. For P4, we use cpuid2 for + * trace cache + */ + if ((num_cache_leaves == 0 || c->x86 == 15) && c->cpuid_level > 1) { /* supports eax=2 call */ int i, j, n; int regs[4]; unsigned char *dp = (unsigned char *)regs; + int only_trace = 0; + + if (num_cache_leaves != 0 && c->x86 == 15) + only_trace = 1; /* Number of times to iterate */ n = cpuid_eax(2) & 0xFF; @@ -241,6 +259,8 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) while (cache_table[k].descriptor != 0) { if (cache_table[k].descriptor == des) { + if (only_trace && cache_table[k].cache_type != LVL_TRACE) + break; switch (cache_table[k].cache_type) { case LVL_1_INST: l1i += cache_table[k].size; @@ -266,34 +286,45 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) } } } + } - if (new_l1d) - l1d = new_l1d; + if (new_l1d) + l1d = new_l1d; - if (new_l1i) - l1i = new_l1i; + if (new_l1i) + l1i = new_l1i; - if (new_l2) - l2 = new_l2; + if (new_l2) { + l2 = new_l2; +#ifdef CONFIG_SMP + cpu_llc_id[cpu] = l2_id; +#endif + } - if (new_l3) - l3 = new_l3; + if (new_l3) { + l3 = new_l3; +#ifdef CONFIG_SMP + cpu_llc_id[cpu] = l3_id; +#endif + } - if ( trace ) - printk (KERN_INFO "CPU: Trace cache: %dK uops", trace); - else if ( l1i ) - printk (KERN_INFO "CPU: L1 I cache: %dK", l1i); - if ( l1d ) - printk(", L1 D cache: %dK\n", l1d); - else - printk("\n"); - if ( l2 ) - printk(KERN_INFO "CPU: L2 cache: %dK\n", l2); - if ( l3 ) - printk(KERN_INFO "CPU: L3 cache: %dK\n", l3); + if (trace) + printk (KERN_INFO "CPU: Trace cache: %dK uops", trace); + else if ( l1i ) + printk (KERN_INFO "CPU: L1 I cache: %dK", l1i); - c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d)); - } + if (l1d) + printk(", L1 D cache: %dK\n", l1d); + else + printk("\n"); + + if (l2) + printk(KERN_INFO "CPU: L2 cache: %dK\n", l2); + + if (l3) + printk(KERN_INFO "CPU: L3 cache: %dK\n", l3); + + c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d)); return l2; } diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 311b4e7266f1..3b329af4afc5 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c @@ -381,7 +381,7 @@ static void do_irq_balance(void) unsigned long imbalance = 0; cpumask_t allowed_mask, target_cpu_mask, tmp; - for_each_cpu(i) { + for_each_possible_cpu(i) { int package_index; CPU_IRQ(i) = 0; if (!cpu_online(i)) @@ -632,7 +632,7 @@ static int __init balanced_irq_init(void) else printk(KERN_ERR "balanced_irq_init: failed to spawn balanced_irq"); failed: - for_each_cpu(i) { + for_each_possible_cpu(i) { kfree(irq_cpu_data[i].irq_delta); irq_cpu_data[i].irq_delta = NULL; kfree(irq_cpu_data[i].last_irq); diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c index dd780a00553f..e7c138f66c5a 100644 --- a/arch/i386/kernel/microcode.c +++ b/arch/i386/kernel/microcode.c @@ -459,26 +459,9 @@ static ssize_t microcode_write (struct file *file, const char __user *buf, size_ return ret; } -static int microcode_ioctl (struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - /* - * XXX: will be removed after microcode_ctl - * is updated to ignore failure of this ioctl() - */ - case MICROCODE_IOCFREE: - return 0; - default: - return -EINVAL; - } - return -EINVAL; -} - static struct file_operations microcode_fops = { .owner = THIS_MODULE, .write = microcode_write, - .ioctl = microcode_ioctl, .open = microcode_open, }; diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index 9074818b9473..d43b498ec745 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -138,12 +138,12 @@ static int __init check_nmi_watchdog(void) if (nmi_watchdog == NMI_LOCAL_APIC) smp_call_function(nmi_cpu_busy, (void *)&endflag, 0, 0); - for_each_cpu(cpu) + for_each_possible_cpu(cpu) prev_nmi_count[cpu] = per_cpu(irq_stat, cpu).__nmi_count; local_irq_enable(); mdelay((10*1000)/nmi_hz); // wait 10 ticks - for_each_cpu(cpu) { + for_each_possible_cpu(cpu) { #ifdef CONFIG_SMP /* Check cpu_callin_map here because that is set after the timer is started. */ @@ -510,7 +510,7 @@ void touch_nmi_watchdog (void) * Just reset the alert counters, (other CPUs might be * spinning on locks we hold): */ - for_each_cpu(i) + for_each_possible_cpu(i) alert_counter[i] = 0; /* @@ -529,7 +529,8 @@ void nmi_watchdog_tick (struct pt_regs * regs) * always switch the stack NMI-atomically, it's safe to use * smp_processor_id(). */ - int sum, cpu = smp_processor_id(); + unsigned int sum; + int cpu = smp_processor_id(); sum = per_cpu(irq_stat, cpu).apic_timer_irqs; diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 6917daa159ab..8c08660b4e5d 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -46,6 +46,7 @@ #include <linux/kexec.h> #include <linux/crash_dump.h> #include <linux/dmi.h> +#include <linux/pfn.h> #include <video/edid.h> diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 82371d83bfa9..a6969903f2d6 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -72,6 +72,9 @@ int phys_proc_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID}; /* Core ID of each logical CPU */ int cpu_core_id[NR_CPUS] __read_mostly = {[0 ... NR_CPUS-1] = BAD_APICID}; +/* Last level cache ID of each logical CPU */ +int cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID}; + /* representing HT siblings of each logical CPU */ cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly; EXPORT_SYMBOL(cpu_sibling_map); @@ -440,6 +443,18 @@ static void __devinit smp_callin(void) static int cpucount; +/* maps the cpu to the sched domain representing multi-core */ +cpumask_t cpu_coregroup_map(int cpu) +{ + struct cpuinfo_x86 *c = cpu_data + cpu; + /* + * For perf, we return last level cache shared map. + * TBD: when power saving sched policy is added, we will return + * cpu_core_map when power saving policy is enabled + */ + return c->llc_shared_map; +} + /* representing cpus for which sibling maps can be computed */ static cpumask_t cpu_sibling_setup_map; @@ -459,12 +474,16 @@ set_cpu_sibling_map(int cpu) cpu_set(cpu, cpu_sibling_map[i]); cpu_set(i, cpu_core_map[cpu]); cpu_set(cpu, cpu_core_map[i]); + cpu_set(i, c[cpu].llc_shared_map); + cpu_set(cpu, c[i].llc_shared_map); } } } else { cpu_set(cpu, cpu_sibling_map[cpu]); } + cpu_set(cpu, c[cpu].llc_shared_map); + if (current_cpu_data.x86_max_cores == 1) { cpu_core_map[cpu] = cpu_sibling_map[cpu]; c[cpu].booted_cores = 1; @@ -472,6 +491,11 @@ set_cpu_sibling_map(int cpu) } for_each_cpu_mask(i, cpu_sibling_setup_map) { + if (cpu_llc_id[cpu] != BAD_APICID && + cpu_llc_id[cpu] == cpu_llc_id[i]) { + cpu_set(i, c[cpu].llc_shared_map); + cpu_set(cpu, c[i].llc_shared_map); + } if (phys_proc_id[cpu] == phys_proc_id[i]) { cpu_set(i, cpu_core_map[cpu]); cpu_set(cpu, cpu_core_map[i]); diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S index ac687d00a1ce..326595f3fa4d 100644 --- a/arch/i386/kernel/syscall_table.S +++ b/arch/i386/kernel/syscall_table.S @@ -310,3 +310,5 @@ ENTRY(sys_call_table) .long sys_pselect6 .long sys_ppoll .long sys_unshare /* 310 */ + .long sys_set_robust_list + .long sys_get_robust_list diff --git a/arch/i386/kernel/timers/timer_pm.c b/arch/i386/kernel/timers/timer_pm.c index 264edaaac315..144e94a04933 100644 --- a/arch/i386/kernel/timers/timer_pm.c +++ b/arch/i386/kernel/timers/timer_pm.c @@ -15,6 +15,7 @@ #include <linux/module.h> #include <linux/device.h> #include <linux/init.h> +#include <linux/pci.h> #include <asm/types.h> #include <asm/timer.h> #include <asm/smp.h> @@ -45,24 +46,31 @@ static seqlock_t monotonic_lock = SEQLOCK_UNLOCKED; #define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */ +static int pmtmr_need_workaround __read_mostly = 1; + /*helper function to safely read acpi pm timesource*/ static inline u32 read_pmtmr(void) { - u32 v1=0,v2=0,v3=0; - /* It has been reported that because of various broken - * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time - * source is not latched, so you must read it multiple - * times to insure a safe value is read. - */ - do { - v1 = inl(pmtmr_ioport); - v2 = inl(pmtmr_ioport); - v3 = inl(pmtmr_ioport); - } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) - || (v3 > v1 && v3 < v2)); - - /* mask the output to 24 bits */ - return v2 & ACPI_PM_MASK; + if (pmtmr_need_workaround) { + u32 v1, v2, v3; + + /* It has been reported that because of various broken + * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time + * source is not latched, so you must read it multiple + * times to insure a safe value is read. + */ + do { + v1 = inl(pmtmr_ioport); + v2 = inl(pmtmr_ioport); + v3 = inl(pmtmr_ioport); + } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1) + || (v3 > v1 && v3 < v2)); + + /* mask the output to 24 bits */ + return v2 & ACPI_PM_MASK; + } + + return inl(pmtmr_ioport) & ACPI_PM_MASK; } @@ -263,6 +271,72 @@ struct init_timer_opts __initdata timer_pmtmr_init = { .opts = &timer_pmtmr, }; +#ifdef CONFIG_PCI +/* + * PIIX4 Errata: + * + * The power management timer may return improper results when read. + * Although the timer value settles properly after incrementing, + * while incrementing there is a 3 ns window every 69.8 ns where the + * timer value is indeterminate (a 4.2% chance that the data will be + * incorrect when read). As a result, the ACPI free running count up + * timer specification is violated due to erroneous reads. + */ +static int __init pmtmr_bug_check(void) +{ + static struct pci_device_id gray_list[] __initdata = { + /* these chipsets may have bug. */ + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82801DB_0) }, + { }, + }; + struct pci_dev *dev; + int pmtmr_has_bug = 0; + u8 rev; + + if (cur_timer != &timer_pmtmr || !pmtmr_need_workaround) + return 0; + + dev = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + if (dev) { + pci_read_config_byte(dev, PCI_REVISION_ID, &rev); + /* the bug has been fixed in PIIX4M */ + if (rev < 3) { + printk(KERN_WARNING "* Found PM-Timer Bug on this " + "chipset. Due to workarounds for a bug,\n" + "* this time source is slow. Consider trying " + "other time sources (clock=)\n"); + pmtmr_has_bug = 1; + } + pci_dev_put(dev); + } + + if (pci_dev_present(gray_list)) { + printk(KERN_WARNING "* This chipset may have PM-Timer Bug. Due" + " to workarounds for a bug,\n" + "* this time source is slow. If you are sure your timer" + " does not have\n" + "* this bug, please use \"pmtmr_good\" to disable the " + "workaround\n"); + pmtmr_has_bug = 1; + } + + if (!pmtmr_has_bug) + pmtmr_need_workaround = 0; + + return 0; +} +device_initcall(pmtmr_bug_check); +#endif + +static int __init pmtr_good_setup(char *__str) +{ + pmtmr_need_workaround = 0; + return 1; +} +__setup("pmtmr_good", pmtr_good_setup); + MODULE_LICENSE("GPL"); MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); MODULE_DESCRIPTION("Power Management Timer (PMTMR) as primary timing source for x86"); diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 4624f8ca2459..6b63a5aa1e46 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -92,22 +92,21 @@ asmlinkage void spurious_interrupt_bug(void); asmlinkage void machine_check(void); static int kstack_depth_to_print = 24; -struct notifier_block *i386die_chain; -static DEFINE_SPINLOCK(die_notifier_lock); +ATOMIC_NOTIFIER_HEAD(i386die_chain); int register_die_notifier(struct notifier_block *nb) { - int err = 0; - unsigned long flags; - vmalloc_sync_all(); - spin_lock_irqsave(&die_notifier_lock, flags); - err = notifier_chain_register(&i386die_chain, nb); - spin_unlock_irqrestore(&die_notifier_lock, flags); - return err; + return atomic_notifier_chain_register(&i386die_chain, nb); } EXPORT_SYMBOL(register_die_notifier); +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&i386die_chain, nb); +} +EXPORT_SYMBOL(unregister_die_notifier); + static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) { return p > (void *)tinfo && diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 8165626a5c30..70e560a1b79a 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -1700,7 +1700,7 @@ after_handle_vic_irq(unsigned int irq) printk("VOYAGER SMP: CPU%d lost interrupt %d\n", cpu, irq); - for_each_cpu(real_cpu, mask) { + for_each_possible_cpu(real_cpu, mask) { outb(VIC_CPU_MASQUERADE_ENABLE | real_cpu, VIC_PROCESSOR_ID); diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c index c4af9638dbfa..fe6eb901326e 100644 --- a/arch/i386/mm/discontig.c +++ b/arch/i386/mm/discontig.c @@ -31,6 +31,7 @@ #include <linux/nodemask.h> #include <linux/module.h> #include <linux/kexec.h> +#include <linux/pfn.h> #include <asm/e820.h> #include <asm/setup.h> @@ -352,17 +353,6 @@ void __init zone_sizes_init(void) { int nid; - /* - * Insert nodes into pgdat_list backward so they appear in order. - * Clobber node 0's links and NULL out pgdat_list before starting. - */ - pgdat_list = NULL; - for (nid = MAX_NUMNODES - 1; nid >= 0; nid--) { - if (!node_online(nid)) - continue; - NODE_DATA(nid)->pgdat_next = pgdat_list; - pgdat_list = NODE_DATA(nid); - } for_each_online_node(nid) { unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c index 9db3242103be..2889567e21a1 100644 --- a/arch/i386/mm/pgtable.c +++ b/arch/i386/mm/pgtable.c @@ -36,7 +36,7 @@ void show_mem(void) printk(KERN_INFO "Mem-info:\n"); show_free_areas(); printk(KERN_INFO "Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { pgdat_resize_lock(pgdat, &flags); for (i = 0; i < pgdat->node_spanned_pages; ++i) { page = pgdat_page_nr(pgdat, i); diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index 1accce50c2c7..1a2076ce6f6a 100644 --- a/arch/i386/oprofile/nmi_int.c +++ b/arch/i386/oprofile/nmi_int.c @@ -122,7 +122,7 @@ static void nmi_save_registers(void * dummy) static void free_msrs(void) { int i; - for_each_cpu(i) { + for_each_possible_cpu(i) { kfree(cpu_msrs[i].counters); cpu_msrs[i].counters = NULL; kfree(cpu_msrs[i].controls); diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index dabd6c32641e..7c1ddc8ac443 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -30,19 +30,19 @@ extern spinlock_t timerlist_lock; fpswa_interface_t *fpswa_interface; EXPORT_SYMBOL(fpswa_interface); -struct notifier_block *ia64die_chain; +ATOMIC_NOTIFIER_HEAD(ia64die_chain); int register_die_notifier(struct notifier_block *nb) { - return notifier_chain_register(&ia64die_chain, nb); + return atomic_notifier_chain_register(&ia64die_chain, nb); } EXPORT_SYMBOL_GPL(register_die_notifier); int unregister_die_notifier(struct notifier_block *nb) { - return notifier_chain_unregister(&ia64die_chain, nb); + return atomic_notifier_chain_unregister(&ia64die_chain, nb); } EXPORT_SYMBOL_GPL(unregister_die_notifier); diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 2f5e44862e91..ec9eeb89975d 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -379,31 +379,6 @@ static void __init *memory_less_node_alloc(int nid, unsigned long pernodesize) } /** - * pgdat_insert - insert the pgdat into global pgdat_list - * @pgdat: the pgdat for a node. - */ -static void __init pgdat_insert(pg_data_t *pgdat) -{ - pg_data_t *prev = NULL, *next; - - for_each_pgdat(next) - if (pgdat->node_id < next->node_id) - break; - else - prev = next; - - if (prev) { - prev->pgdat_next = pgdat; - pgdat->pgdat_next = next; - } else { - pgdat->pgdat_next = pgdat_list; - pgdat_list = pgdat; - } - - return; -} - -/** * memory_less_nodes - allocate and initialize CPU only nodes pernode * information. */ @@ -560,7 +535,7 @@ void show_mem(void) printk("Mem-info:\n"); show_free_areas(); printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { unsigned long present; unsigned long flags; int shared = 0, cached = 0, reserved = 0; @@ -745,11 +720,5 @@ void __init paging_init(void) pfn_offset, zholes_size); } - /* - * Make memory less nodes become a member of the known nodes. - */ - for_each_node_mask(node, memory_less_mask) - pgdat_insert(mem_data[node].pgdat); - zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); } diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index ff4f31fcd330..2ef1151cde90 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -600,7 +600,7 @@ mem_init (void) kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START); kclist_add(&kcore_kernel, _stext, _end - _stext); - for_each_pgdat(pgdat) + for_each_online_pgdat(pgdat) if (pgdat->bdata->node_bootmem_map) totalram_pages += free_all_bootmem_node(pgdat); diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c index c686d9c12f7b..5100261310f7 100644 --- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c +++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c @@ -93,19 +93,22 @@ static int coherence_id_open(struct inode *inode, struct file *file) static struct proc_dir_entry *sn_procfs_create_entry(const char *name, struct proc_dir_entry *parent, int (*openfunc)(struct inode *, struct file *), - int (*releasefunc)(struct inode *, struct file *)) + int (*releasefunc)(struct inode *, struct file *), + ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *)) { struct proc_dir_entry *e = create_proc_entry(name, 0444, parent); if (e) { - e->proc_fops = (struct file_operations *)kmalloc( - sizeof(struct file_operations), GFP_KERNEL); - if (e->proc_fops) { - memset(e->proc_fops, 0, sizeof(struct file_operations)); - e->proc_fops->open = openfunc; - e->proc_fops->read = seq_read; - e->proc_fops->llseek = seq_lseek; - e->proc_fops->release = releasefunc; + struct file_operations *f; + + f = kzalloc(sizeof(*f), GFP_KERNEL); + if (f) { + f->open = openfunc; + f->read = seq_read; + f->llseek = seq_lseek; + f->release = releasefunc; + f->write = write; + e->proc_fops = f; } } @@ -119,31 +122,29 @@ extern int sn_topology_release(struct inode *, struct file *); void register_sn_procfs(void) { static struct proc_dir_entry *sgi_proc_dir = NULL; - struct proc_dir_entry *e; BUG_ON(sgi_proc_dir != NULL); if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL))) return; sn_procfs_create_entry("partition_id", sgi_proc_dir, - partition_id_open, single_release); + partition_id_open, single_release, NULL); sn_procfs_create_entry("system_serial_number", sgi_proc_dir, - system_serial_number_open, single_release); + system_serial_number_open, single_release, NULL); sn_procfs_create_entry("licenseID", sgi_proc_dir, - licenseID_open, single_release); + licenseID_open, single_release, NULL); - e = sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir, - sn_force_interrupt_open, single_release); - if (e) - e->proc_fops->write = sn_force_interrupt_write_proc; + sn_procfs_create_entry("sn_force_interrupt", sgi_proc_dir, + sn_force_interrupt_open, single_release, + sn_force_interrupt_write_proc); sn_procfs_create_entry("coherence_id", sgi_proc_dir, - coherence_id_open, single_release); + coherence_id_open, single_release, NULL); sn_procfs_create_entry("sn_topology", sgi_proc_dir, - sn_topology_open, sn_topology_release); + sn_topology_open, sn_topology_release, NULL); } #endif /* CONFIG_PROC_FS */ diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c index d742037a7ccb..0d78942b4c76 100644 --- a/arch/m32r/kernel/setup.c +++ b/arch/m32r/kernel/setup.c @@ -24,6 +24,7 @@ #include <linux/tty.h> #include <linux/cpu.h> #include <linux/nodemask.h> +#include <linux/pfn.h> #include <asm/processor.h> #include <asm/pgtable.h> diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index 08e727955555..cf610a7c5ff0 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -13,6 +13,7 @@ #include <linux/initrd.h> #include <linux/nodemask.h> #include <linux/module.h> +#include <linux/pfn.h> #include <asm/setup.h> @@ -137,12 +138,6 @@ unsigned long __init zone_sizes_init(void) int nid, i; mem_prof_t *mp; - pgdat_list = NULL; - for (nid = num_online_nodes() - 1 ; nid >= 0 ; nid--) { - NODE_DATA(nid)->pgdat_next = pgdat_list; - pgdat_list = NODE_DATA(nid); - } - for_each_online_node(nid) { mp = &mem_prof[nid]; for (i = 0 ; i < MAX_NR_ZONES ; i++) { diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index c9e7dad860b7..b71348fec1f4 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c @@ -18,6 +18,7 @@ #include <linux/highmem.h> #include <linux/bitops.h> #include <linux/nodemask.h> +#include <linux/pfn.h> #include <asm/types.h> #include <asm/processor.h> #include <asm/page.h> @@ -47,7 +48,7 @@ void show_mem(void) printk("Mem-info:\n"); show_free_areas(); printk("Free swap: %6ldkB\n",nr_swap_pages<<(PAGE_SHIFT-10)); - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { unsigned long flags; pgdat_resize_lock(pgdat, &flags); for (i = 0; i < pgdat->node_spanned_pages; ++i) { diff --git a/arch/m68k/mvme16x/rtc.c b/arch/m68k/mvme16x/rtc.c index a69fe3048edc..b0e4c084df8a 100644 --- a/arch/m68k/mvme16x/rtc.c +++ b/arch/m68k/mvme16x/rtc.c @@ -17,6 +17,7 @@ #include <linux/poll.h> #include <linux/mc146818rtc.h> /* For struct rtc_time and ioctls, etc */ #include <linux/smp_lock.h> +#include <linux/bcd.h> #include <asm/mvme16xhw.h> #include <asm/io.h> @@ -31,9 +32,6 @@ * ioctls. */ -#define BCD2BIN(val) (((val)&15) + ((val)>>4)*10) -#define BIN2BCD(val) ((((val)/10)<<4) + (val)%10) - static const unsigned char days_in_mo[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c index 1080558c8100..307e98c29ddc 100644 --- a/arch/mips/au1000/common/setup.c +++ b/arch/mips/au1000/common/setup.c @@ -94,7 +94,7 @@ void __init plat_setup(void) argptr = prom_getcmdline(); -#if defined(CONFIG_SERIAL_AU1X00_CONSOLE) || defined(CONFIG_SERIAL_8250_CONSOLE) +#ifdef CONFIG_SERIAL_8250_CONSOLE if ((argptr = strstr(argptr, "console=")) == NULL) { argptr = prom_getcmdline(); strcat(argptr, " console=ttyS0,115200"); diff --git a/arch/mips/ddb5xxx/common/rtc_ds1386.c b/arch/mips/ddb5xxx/common/rtc_ds1386.c index 995896ac0e39..5dc34daa7150 100644 --- a/arch/mips/ddb5xxx/common/rtc_ds1386.c +++ b/arch/mips/ddb5xxx/common/rtc_ds1386.c @@ -165,6 +165,6 @@ rtc_ds1386_init(unsigned long base) WRITE_RTC(0xB, byte); /* set the function pointers */ - rtc_get_time = rtc_ds1386_get_time; - rtc_set_time = rtc_ds1386_set_time; + rtc_mips_get_time = rtc_ds1386_get_time; + rtc_mips_set_time = rtc_ds1386_set_time; } diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c index 174822344131..74cb055d4bf6 100644 --- a/arch/mips/dec/time.c +++ b/arch/mips/dec/time.c @@ -36,41 +36,13 @@ #include <asm/dec/ioasic_addrs.h> #include <asm/dec/machtype.h> - -/* - * Returns true if a clock update is in progress - */ -static inline unsigned char dec_rtc_is_updating(void) -{ - unsigned char uip; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP); - spin_unlock_irqrestore(&rtc_lock, flags); - return uip; -} - static unsigned long dec_rtc_get_time(void) { unsigned int year, mon, day, hour, min, sec, real_year; - int i; unsigned long flags; - /* The Linux interpretation of the DS1287 clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - /* read RTC exactly on falling edge of update flag */ - for (i = 0; i < 1000000; i++) /* may take up to 1 second... */ - if (dec_rtc_is_updating()) - break; - for (i = 0; i < 1000000; i++) /* must try at least 2.228 ms */ - if (!dec_rtc_is_updating()) - break; spin_lock_irqsave(&rtc_lock, flags); - /* Isn't this overkill? UIP above should guarantee consistency */ + do { sec = CMOS_READ(RTC_SECONDS); min = CMOS_READ(RTC_MINUTES); @@ -78,7 +50,16 @@ static unsigned long dec_rtc_get_time(void) day = CMOS_READ(RTC_DAY_OF_MONTH); mon = CMOS_READ(RTC_MONTH); year = CMOS_READ(RTC_YEAR); + /* + * The PROM will reset the year to either '72 or '73. + * Therefore we store the real year separately, in one + * of unused BBU RAM locations. + */ + real_year = CMOS_READ(RTC_DEC_YEAR); } while (sec != CMOS_READ(RTC_SECONDS)); + + spin_unlock_irqrestore(&rtc_lock, flags); + if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { sec = BCD2BIN(sec); min = BCD2BIN(min); @@ -87,13 +68,7 @@ static unsigned long dec_rtc_get_time(void) mon = BCD2BIN(mon); year = BCD2BIN(year); } - /* - * The PROM will reset the year to either '72 or '73. - * Therefore we store the real year separately, in one - * of unused BBU RAM locations. - */ - real_year = CMOS_READ(RTC_DEC_YEAR); - spin_unlock_irqrestore(&rtc_lock, flags); + year += real_year - 72 + 2000; return mktime(year, mon, day, hour, min, sec); @@ -193,8 +168,8 @@ static void dec_ioasic_hpt_init(unsigned int count) void __init dec_time_init(void) { - rtc_get_time = dec_rtc_get_time; - rtc_set_mmss = dec_rtc_set_mmss; + rtc_mips_get_time = dec_rtc_get_time; + rtc_mips_set_mmss = dec_rtc_set_mmss; mips_timer_state = dec_timer_state; mips_timer_ack = dec_timer_ack; diff --git a/arch/mips/ite-boards/generic/time.c b/arch/mips/ite-boards/generic/time.c index f5d67ee21ac6..b79817bb6cce 100644 --- a/arch/mips/ite-boards/generic/time.c +++ b/arch/mips/ite-boards/generic/time.c @@ -227,8 +227,8 @@ void __init it8172_time_init(void) local_irq_restore(flags); - rtc_get_time = it8172_rtc_get_time; - rtc_set_time = it8172_rtc_set_time; + rtc_mips_get_time = it8172_rtc_get_time; + rtc_mips_set_time = it8172_rtc_set_time; } #define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5) diff --git a/arch/mips/ite-boards/ivr/init.c b/arch/mips/ite-boards/ivr/init.c index ea4e1935fec5..b774db035b31 100644 --- a/arch/mips/ite-boards/ivr/init.c +++ b/arch/mips/ite-boards/ivr/init.c @@ -45,9 +45,6 @@ extern void __init prom_init_cmdline(void); extern unsigned long __init prom_get_memsize(void); extern void __init it8172_init_ram_resource(unsigned long memsize); -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) - const char *get_system_type(void) { return "Globespan IVR"; diff --git a/arch/mips/ite-boards/qed-4n-s01b/init.c b/arch/mips/ite-boards/qed-4n-s01b/init.c index 56dca7e0c21d..e8ec8be66a80 100644 --- a/arch/mips/ite-boards/qed-4n-s01b/init.c +++ b/arch/mips/ite-boards/qed-4n-s01b/init.c @@ -45,9 +45,6 @@ extern void __init prom_init_cmdline(void); extern unsigned long __init prom_get_memsize(void); extern void __init it8172_init_ram_resource(unsigned long memsize); -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) - const char *get_system_type(void) { return "ITE QED-4N-S01B"; diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c index 9a8bff153d80..a6bd3f4d3049 100644 --- a/arch/mips/jmr3927/common/rtc_ds1742.c +++ b/arch/mips/jmr3927/common/rtc_ds1742.c @@ -159,8 +159,8 @@ rtc_ds1742_init(unsigned long base) db_assert((rtc_base & 0xe0000000) == KSEG1); /* set the function pointers */ - rtc_get_time = rtc_ds1742_get_time; - rtc_set_time = rtc_ds1742_set_time; + rtc_mips_get_time = rtc_ds1742_get_time; + rtc_mips_set_time = rtc_ds1742_set_time; /* clear oscillator stop bit */ CMOS_WRITE(RTC_READ, RTC_CONTROL); diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 0cb3b6097e0e..dcbfd27071f0 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -34,6 +34,7 @@ #include <linux/highmem.h> #include <linux/console.h> #include <linux/mmzone.h> +#include <linux/pfn.h> #include <asm/addrspace.h> #include <asm/bootinfo.h> @@ -257,10 +258,6 @@ static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_en return 0; } -#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) - #define MAXMEM HIGHMEM_START #define MAXMEM_PFN PFN_DOWN(MAXMEM) @@ -493,10 +490,6 @@ static inline void resource_init(void) } } -#undef PFN_UP -#undef PFN_DOWN -#undef PFN_PHYS - #undef MAXMEM #undef MAXMEM_PFN diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index 51273b7297a7..5e51a2d8f3f0 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -65,9 +65,9 @@ static int null_rtc_set_time(unsigned long sec) return 0; } -unsigned long (*rtc_get_time)(void) = null_rtc_get_time; -int (*rtc_set_time)(unsigned long) = null_rtc_set_time; -int (*rtc_set_mmss)(unsigned long); +unsigned long (*rtc_mips_get_time)(void) = null_rtc_get_time; +int (*rtc_mips_set_time)(unsigned long) = null_rtc_set_time; +int (*rtc_mips_set_mmss)(unsigned long); /* usecs per counter cycle, shifted to left by 32 bits */ @@ -440,14 +440,14 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) /* * If we have an externally synchronized Linux clock, then update - * CMOS clock accordingly every ~11 minutes. rtc_set_time() has to be + * CMOS clock accordingly every ~11 minutes. rtc_mips_set_time() has to be * called as close as possible to 500 ms before the new second starts. */ if (ntp_synced() && xtime.tv_sec > last_rtc_update + 660 && (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (rtc_set_mmss(xtime.tv_sec) == 0) { + if (rtc_mips_set_mmss(xtime.tv_sec) == 0) { last_rtc_update = xtime.tv_sec; } else { /* do it again in 60 s */ @@ -565,7 +565,7 @@ asmlinkage void ll_local_timer_interrupt(int irq, struct pt_regs *regs) * b) (optional) calibrate and set the mips_hpt_frequency * (only needed if you intended to use fixed_rate_gettimeoffset * or use cpu counter as timer interrupt source) - * 2) setup xtime based on rtc_get_time(). + * 2) setup xtime based on rtc_mips_get_time(). * 3) choose a appropriate gettimeoffset routine. * 4) calculate a couple of cached variables for later usage * 5) board_timer_setup() - @@ -633,10 +633,10 @@ void __init time_init(void) if (board_time_init) board_time_init(); - if (!rtc_set_mmss) - rtc_set_mmss = rtc_set_time; + if (!rtc_mips_set_mmss) + rtc_mips_set_mmss = rtc_mips_set_time; - xtime.tv_sec = rtc_get_time(); + xtime.tv_sec = rtc_mips_get_time(); xtime.tv_nsec = 0; set_normalized_timespec(&wall_to_monotonic, @@ -772,8 +772,8 @@ void to_tm(unsigned long tim, struct rtc_time *tm) EXPORT_SYMBOL(rtc_lock); EXPORT_SYMBOL(to_tm); -EXPORT_SYMBOL(rtc_set_time); -EXPORT_SYMBOL(rtc_get_time); +EXPORT_SYMBOL(rtc_mips_set_time); +EXPORT_SYMBOL(rtc_mips_get_time); unsigned long long sched_clock(void) { diff --git a/arch/mips/lasat/setup.c b/arch/mips/lasat/setup.c index 83eb08b7a072..bb70a8240e61 100644 --- a/arch/mips/lasat/setup.c +++ b/arch/mips/lasat/setup.c @@ -165,7 +165,8 @@ void __init plat_setup(void) /* Set up panic notifier */ for (i = 0; i < sizeof(lasat_panic_block) / sizeof(struct notifier_block); i++) - notifier_chain_register(&panic_notifier_list, &lasat_panic_block[i]); + atomic_notifier_chain_register(&panic_notifier_list, + &lasat_panic_block[i]); lasat_reboot_setup(); @@ -174,8 +175,8 @@ void __init plat_setup(void) #ifdef CONFIG_DS1603 ds1603 = &ds_defs[mips_machtype]; - rtc_get_time = ds1603_read; - rtc_set_time = ds1603_set; + rtc_mips_get_time = ds1603_read; + rtc_mips_set_time = ds1603_set; #endif #ifdef DYNAMIC_SERIAL_INIT diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c index 873cf3141a31..c20d401ecf80 100644 --- a/arch/mips/mips-boards/atlas/atlas_setup.c +++ b/arch/mips/mips-boards/atlas/atlas_setup.c @@ -65,7 +65,7 @@ void __init plat_setup(void) board_time_init = mips_time_init; board_timer_setup = mips_timer_setup; - rtc_get_time = mips_rtc_get_time; + rtc_mips_get_time = mips_rtc_get_time; } static void __init serial_init(void) diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c index ee5e70c95cf3..32c9210373ac 100644 --- a/arch/mips/mips-boards/generic/memory.c +++ b/arch/mips/mips-boards/generic/memory.c @@ -49,9 +49,6 @@ static char *mtypes[3] = { /* References to section boundaries */ extern char _end; -#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) - - struct prom_pmemblock * __init prom_getmdesc(void) { char *memsize_str; @@ -109,10 +106,10 @@ struct prom_pmemblock * __init prom_getmdesc(void) mdesc[3].type = yamon_dontuse; mdesc[3].base = 0x00100000; - mdesc[3].size = CPHYSADDR(PFN_ALIGN(&_end)) - mdesc[3].base; + mdesc[3].size = CPHYSADDR(PAGE_ALIGN(&_end)) - mdesc[3].base; mdesc[4].type = yamon_free; - mdesc[4].base = CPHYSADDR(PFN_ALIGN(&_end)); + mdesc[4].base = CPHYSADDR(PAGE_ALIGN(&_end)); mdesc[4].size = memsize - mdesc[4].base; return &mdesc[0]; diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c index 2209e8a9de34..b8488aab6df1 100644 --- a/arch/mips/mips-boards/malta/malta_setup.c +++ b/arch/mips/mips-boards/malta/malta_setup.c @@ -225,5 +225,5 @@ void __init plat_setup(void) board_time_init = mips_time_init; board_timer_setup = mips_timer_setup; - rtc_get_time = mips_rtc_get_time; + rtc_mips_get_time = mips_rtc_get_time; } diff --git a/arch/mips/mips-boards/sim/sim_mem.c b/arch/mips/mips-boards/sim/sim_mem.c index 1ec4e75656bd..e57f737bab10 100644 --- a/arch/mips/mips-boards/sim/sim_mem.c +++ b/arch/mips/mips-boards/sim/sim_mem.c @@ -42,9 +42,6 @@ static char *mtypes[3] = { /* References to section boundaries */ extern char _end; -#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) - - struct prom_pmemblock * __init prom_getmdesc(void) { unsigned int memsize; @@ -64,10 +61,10 @@ struct prom_pmemblock * __init prom_getmdesc(void) mdesc[2].type = simmem_reserved; mdesc[2].base = 0x00100000; - mdesc[2].size = CPHYSADDR(PFN_ALIGN(&_end)) - mdesc[2].base; + mdesc[2].size = CPHYSADDR(PAGE_ALIGN(&_end)) - mdesc[2].base; mdesc[3].type = simmem_free; - mdesc[3].base = CPHYSADDR(PFN_ALIGN(&_end)); + mdesc[3].base = CPHYSADDR(PAGE_ALIGN(&_end)); mdesc[3].size = memsize - mdesc[3].base; return &mdesc[0]; diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 52f7d59fe612..ad89c442f299 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -25,6 +25,7 @@ #include <linux/highmem.h> #include <linux/swap.h> #include <linux/proc_fs.h> +#include <linux/pfn.h> #include <asm/bootinfo.h> #include <asm/cachectl.h> @@ -177,9 +178,6 @@ void __init paging_init(void) free_area_init(zones_size); } -#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) - static inline int page_is_ram(unsigned long pagenr) { int i; diff --git a/arch/mips/momentum/jaguar_atx/setup.c b/arch/mips/momentum/jaguar_atx/setup.c index 3784c898db1a..91d9637143d7 100644 --- a/arch/mips/momentum/jaguar_atx/setup.c +++ b/arch/mips/momentum/jaguar_atx/setup.c @@ -229,8 +229,8 @@ void momenco_time_init(void) mips_hpt_frequency = cpu_clock / 2; board_timer_setup = momenco_timer_setup; - rtc_get_time = m48t37y_get_time; - rtc_set_time = m48t37y_set_time; + rtc_mips_get_time = m48t37y_get_time; + rtc_mips_set_time = m48t37y_set_time; } static struct resource mv_pci_io_mem0_resource = { diff --git a/arch/mips/momentum/ocelot_3/setup.c b/arch/mips/momentum/ocelot_3/setup.c index f95677f4f06f..370e75d0e75c 100644 --- a/arch/mips/momentum/ocelot_3/setup.c +++ b/arch/mips/momentum/ocelot_3/setup.c @@ -58,6 +58,7 @@ #include <linux/bootmem.h> #include <linux/mv643xx.h> #include <linux/pm.h> +#include <linux/bcd.h> #include <asm/time.h> #include <asm/page.h> @@ -131,9 +132,6 @@ void setup_wired_tlb_entries(void) add_wired_entry(ENTRYLO(0xfc000000), ENTRYLO(0xfd000000), (signed)0xfc000000, PM_16M); } -#define CONV_BCD_TO_BIN(val) (((val) & 0xf) + (((val) >> 4) * 10)) -#define CONV_BIN_TO_BCD(val) (((val) % 10) + (((val) / 10) << 4)) - unsigned long m48t37y_get_time(void) { unsigned int year, month, day, hour, min, sec; @@ -143,16 +141,16 @@ unsigned long m48t37y_get_time(void) /* stop the update */ rtc_base[0x7ff8] = 0x40; - year = CONV_BCD_TO_BIN(rtc_base[0x7fff]); - year += CONV_BCD_TO_BIN(rtc_base[0x7ff1]) * 100; + year = BCD2BIN(rtc_base[0x7fff]); + year += BCD2BIN(rtc_base[0x7ff1]) * 100; - month = CONV_BCD_TO_BIN(rtc_base[0x7ffe]); + month = BCD2BIN(rtc_base[0x7ffe]); - day = CONV_BCD_TO_BIN(rtc_base[0x7ffd]); + day = BCD2BIN(rtc_base[0x7ffd]); - hour = CONV_BCD_TO_BIN(rtc_base[0x7ffb]); - min = CONV_BCD_TO_BIN(rtc_base[0x7ffa]); - sec = CONV_BCD_TO_BIN(rtc_base[0x7ff9]); + hour = BCD2BIN(rtc_base[0x7ffb]); + min = BCD2BIN(rtc_base[0x7ffa]); + sec = BCD2BIN(rtc_base[0x7ff9]); /* start the update */ rtc_base[0x7ff8] = 0x00; @@ -175,22 +173,22 @@ int m48t37y_set_time(unsigned long sec) rtc_base[0x7ff8] = 0x80; /* year */ - rtc_base[0x7fff] = CONV_BIN_TO_BCD(tm.tm_year % 100); - rtc_base[0x7ff1] = CONV_BIN_TO_BCD(tm.tm_year / 100); + rtc_base[0x7fff] = BIN2BCD(tm.tm_year % 100); + rtc_base[0x7ff1] = BIN2BCD(tm.tm_year / 100); /* month */ - rtc_base[0x7ffe] = CONV_BIN_TO_BCD(tm.tm_mon); + rtc_base[0x7ffe] = BIN2BCD(tm.tm_mon); /* day */ - rtc_base[0x7ffd] = CONV_BIN_TO_BCD(tm.tm_mday); + rtc_base[0x7ffd] = BIN2BCD(tm.tm_mday); /* hour/min/sec */ - rtc_base[0x7ffb] = CONV_BIN_TO_BCD(tm.tm_hour); - rtc_base[0x7ffa] = CONV_BIN_TO_BCD(tm.tm_min); - rtc_base[0x7ff9] = CONV_BIN_TO_BCD(tm.tm_sec); + rtc_base[0x7ffb] = BIN2BCD(tm.tm_hour); + rtc_base[0x7ffa] = BIN2BCD(tm.tm_min); + rtc_base[0x7ff9] = BIN2BCD(tm.tm_sec); /* day of week -- not really used, but let's keep it up-to-date */ - rtc_base[0x7ffc] = CONV_BIN_TO_BCD(tm.tm_wday + 1); + rtc_base[0x7ffc] = BIN2BCD(tm.tm_wday + 1); /* disable writing */ rtc_base[0x7ff8] = 0x00; @@ -215,8 +213,8 @@ void momenco_time_init(void) mips_hpt_frequency = cpu_clock / 2; board_timer_setup = momenco_timer_setup; - rtc_get_time = m48t37y_get_time; - rtc_set_time = m48t37y_set_time; + rtc_mips_get_time = m48t37y_get_time; + rtc_mips_set_time = m48t37y_set_time; } /* diff --git a/arch/mips/momentum/ocelot_c/setup.c b/arch/mips/momentum/ocelot_c/setup.c index bd02e60d037a..a3e6f5575592 100644 --- a/arch/mips/momentum/ocelot_c/setup.c +++ b/arch/mips/momentum/ocelot_c/setup.c @@ -227,8 +227,8 @@ void momenco_time_init(void) printk("momenco_time_init cpu_clock=%d\n", cpu_clock); board_timer_setup = momenco_timer_setup; - rtc_get_time = m48t37y_get_time; - rtc_set_time = m48t37y_set_time; + rtc_mips_get_time = m48t37y_get_time; + rtc_mips_set_time = m48t37y_set_time; } void __init plat_setup(void) diff --git a/arch/mips/pmc-sierra/yosemite/setup.c b/arch/mips/pmc-sierra/yosemite/setup.c index 8bce711575de..3f724d661bdb 100644 --- a/arch/mips/pmc-sierra/yosemite/setup.c +++ b/arch/mips/pmc-sierra/yosemite/setup.c @@ -198,8 +198,8 @@ static void __init py_rtc_setup(void) if (!m48t37_base) printk(KERN_ERR "Mapping the RTC failed\n"); - rtc_get_time = m48t37y_get_time; - rtc_set_time = m48t37y_set_time; + rtc_mips_get_time = m48t37y_get_time; + rtc_mips_set_time = m48t37y_set_time; write_seqlock(&xtime_lock); xtime.tv_sec = m48t37y_get_time(); diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c index 92a3b3c15ed3..a9c58e067b53 100644 --- a/arch/mips/sgi-ip22/ip22-reset.c +++ b/arch/mips/sgi-ip22/ip22-reset.c @@ -238,7 +238,7 @@ static int __init reboot_setup(void) request_irq(SGI_PANEL_IRQ, panel_int, 0, "Front Panel", NULL); init_timer(&blink_timer); blink_timer.function = blink_timeout; - notifier_chain_register(&panic_notifier_list, &panic_block); + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); return 0; } diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c index b7300cc5c5ad..cca688ad64ad 100644 --- a/arch/mips/sgi-ip22/ip22-time.c +++ b/arch/mips/sgi-ip22/ip22-time.c @@ -212,8 +212,8 @@ static void indy_timer_setup(struct irqaction *irq) void __init ip22_time_init(void) { /* setup hookup functions */ - rtc_get_time = indy_rtc_get_time; - rtc_set_time = indy_rtc_set_time; + rtc_mips_get_time = indy_rtc_get_time; + rtc_mips_set_time = indy_rtc_set_time; board_time_init = indy_time_init; board_timer_setup = indy_timer_setup; diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index e0d095daa5ed..6c00dce9f73f 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -19,6 +19,7 @@ #include <linux/nodemask.h> #include <linux/swap.h> #include <linux/bootmem.h> +#include <linux/pfn.h> #include <asm/page.h> #include <asm/sections.h> @@ -28,8 +29,6 @@ #include <asm/sn/sn_private.h> -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) - #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c index 0c948008b023..ab9d9cef089e 100644 --- a/arch/mips/sgi-ip32/ip32-reset.c +++ b/arch/mips/sgi-ip32/ip32-reset.c @@ -193,7 +193,7 @@ static __init int ip32_reboot_setup(void) init_timer(&blink_timer); blink_timer.function = blink_timeout; - notifier_chain_register(&panic_notifier_list, &panic_block); + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); request_irq(MACEISA_RTC_IRQ, ip32_rtc_int, 0, "rtc", NULL); diff --git a/arch/mips/sgi-ip32/ip32-setup.c b/arch/mips/sgi-ip32/ip32-setup.c index 2f50c79b7887..a2dd8ae1ea8f 100644 --- a/arch/mips/sgi-ip32/ip32-setup.c +++ b/arch/mips/sgi-ip32/ip32-setup.c @@ -91,8 +91,8 @@ void __init plat_setup(void) { board_be_init = ip32_be_init; - rtc_get_time = mc146818_get_cmos_time; - rtc_set_mmss = mc146818_set_rtc_mmss; + rtc_mips_get_time = mc146818_get_cmos_time; + rtc_mips_set_mmss = mc146818_set_rtc_mmss; board_time_init = ip32_time_init; board_timer_setup = ip32_timer_setup; diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c index b661d2425a36..4b5f74ff3edd 100644 --- a/arch/mips/sibyte/swarm/setup.c +++ b/arch/mips/sibyte/swarm/setup.c @@ -121,14 +121,14 @@ void __init plat_setup(void) if (xicor_probe()) { printk("swarm setup: Xicor 1241 RTC detected.\n"); - rtc_get_time = xicor_get_time; - rtc_set_time = xicor_set_time; + rtc_mips_get_time = xicor_get_time; + rtc_mips_set_time = xicor_set_time; } if (m41t81_probe()) { printk("swarm setup: M41T81 RTC detected.\n"); - rtc_get_time = m41t81_get_time; - rtc_set_time = m41t81_set_time; + rtc_mips_get_time = m41t81_get_time; + rtc_mips_set_time = m41t81_set_time; } printk("This kernel optimized for " diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c index 1141fcd13a59..01ba6c581e3d 100644 --- a/arch/mips/sni/setup.c +++ b/arch/mips/sni/setup.c @@ -164,8 +164,8 @@ static struct pci_controller sni_controller = { static inline void sni_pcimt_time_init(void) { - rtc_get_time = mc146818_get_cmos_time; - rtc_set_time = mc146818_set_rtc_mmss; + rtc_mips_get_time = mc146818_get_cmos_time; + rtc_mips_set_time = mc146818_set_rtc_mmss; } void __init plat_setup(void) diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c index 2ad6401d2af4..6dcf077f61a0 100644 --- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c +++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c @@ -1036,8 +1036,8 @@ toshiba_rbtx4927_time_init(void) #ifdef CONFIG_RTC_DS1742 - rtc_get_time = rtc_ds1742_get_time; - rtc_set_time = rtc_ds1742_set_time; + rtc_mips_get_time = rtc_ds1742_get_time; + rtc_mips_set_time = rtc_ds1742_set_time; TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, ":rtc_ds1742_init()-\n"); diff --git a/arch/mips/tx4938/common/rtc_rx5c348.c b/arch/mips/tx4938/common/rtc_rx5c348.c index d249edbb6af4..07f782fc0725 100644 --- a/arch/mips/tx4938/common/rtc_rx5c348.c +++ b/arch/mips/tx4938/common/rtc_rx5c348.c @@ -14,6 +14,7 @@ #include <linux/string.h> #include <linux/rtc.h> #include <linux/time.h> +#include <linux/bcd.h> #include <asm/time.h> #include <asm/tx4938/spi.h> @@ -77,17 +78,6 @@ spi_rtc_io(unsigned char *inbuf, unsigned char *outbuf, unsigned int count) inbufs, incounts, outbufs, outcounts, 0); } -/* - * Conversion between binary and BCD. - */ -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - /* RTC-dependent code for time.c */ static int @@ -197,6 +187,6 @@ rtc_rx5c348_init(int chipid) srtc_24h = 1; /* set the function pointers */ - rtc_get_time = rtc_rx5c348_get_time; - rtc_set_time = rtc_rx5c348_set_time; + rtc_mips_get_time = rtc_rx5c348_get_time; + rtc_mips_set_time = rtc_rx5c348_set_time; } diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c index 2a01fe1bdc98..0cea6958f427 100644 --- a/arch/parisc/kernel/pdc_chassis.c +++ b/arch/parisc/kernel/pdc_chassis.c @@ -150,7 +150,8 @@ void __init parisc_pdc_chassis_init(void) if (handle) { /* initialize panic notifier chain */ - notifier_chain_register(&panic_notifier_list, &pdc_chassis_panic_block); + atomic_notifier_chain_register(&panic_notifier_list, + &pdc_chassis_panic_block); /* initialize reboot notifier chain */ register_reboot_notifier(&pdc_chassis_reboot_block); diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 6aea1fb74b69..05b152299396 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -537,7 +537,8 @@ void __init setup_arch(char **cmdline_p) panic_timeout = 180; if (ppc_md.panic) - notifier_chain_register(&panic_notifier_list, &ppc64_panic_block); + atomic_notifier_chain_register(&panic_notifier_list, + &ppc64_panic_block); init_mm.start_code = PAGE_OFFSET; init_mm.end_code = (unsigned long) _etext; diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 27600c9432bc..4cbde211eb69 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -74,19 +74,19 @@ EXPORT_SYMBOL(__debugger_dabr_match); EXPORT_SYMBOL(__debugger_fault_handler); #endif -struct notifier_block *powerpc_die_chain; -static DEFINE_SPINLOCK(die_notifier_lock); +ATOMIC_NOTIFIER_HEAD(powerpc_die_chain); int register_die_notifier(struct notifier_block *nb) { - int err = 0; - unsigned long flags; + return atomic_notifier_chain_register(&powerpc_die_chain, nb); +} +EXPORT_SYMBOL(register_die_notifier); - spin_lock_irqsave(&die_notifier_lock, flags); - err = notifier_chain_register(&powerpc_die_chain, nb); - spin_unlock_irqrestore(&die_notifier_lock, flags); - return err; +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&powerpc_die_chain, nb); } +EXPORT_SYMBOL(unregister_die_notifier); /* * Trap & Exception support diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 4737f84bb19e..741dd8802d49 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -195,7 +195,7 @@ void show_mem(void) printk("Mem-info:\n"); show_free_areas(); printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { unsigned long flags; pgdat_resize_lock(pgdat, &flags); for (i = 0; i < pgdat->node_spanned_pages; i++) { @@ -351,7 +351,7 @@ void __init mem_init(void) max_mapnr = max_pfn; totalram_pages += free_all_bootmem(); #endif - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { for (i = 0; i < pgdat->node_spanned_pages; i++) { if (!pfn_valid(pgdat->node_start_pfn + i)) continue; diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 61e70d35d808..d9554199afa7 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -103,7 +103,7 @@ spufs_setattr(struct dentry *dentry, struct iattr *attr) static int spufs_new_file(struct super_block *sb, struct dentry *dentry, - struct file_operations *fops, int mode, + const struct file_operations *fops, int mode, struct spu_context *ctx) { static struct inode_operations spufs_file_iops = { diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c index 12c6f689b1aa..7d7889026936 100644 --- a/arch/powerpc/platforms/chrp/time.c +++ b/arch/powerpc/platforms/chrp/time.c @@ -120,33 +120,15 @@ int chrp_set_rtc_time(struct rtc_time *tmarg) void chrp_get_rtc_time(struct rtc_time *tm) { unsigned int year, mon, day, hour, min, sec; - int uip, i; - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - - /* Since the UIP flag is set for about 2.2 ms and the clock - * is typically written with a precision of 1 jiffy, trying - * to obtain a precision better than a few milliseconds is - * an illusion. Only consistency is interesting, this also - * allows to use the routine for /dev/rtc without a potential - * 1 second kernel busy loop triggered by any reader of /dev/rtc. - */ - - for ( i = 0; i<1000000; i++) { - uip = chrp_cmos_clock_read(RTC_FREQ_SELECT); + do { sec = chrp_cmos_clock_read(RTC_SECONDS); min = chrp_cmos_clock_read(RTC_MINUTES); hour = chrp_cmos_clock_read(RTC_HOURS); day = chrp_cmos_clock_read(RTC_DAY_OF_MONTH); mon = chrp_cmos_clock_read(RTC_MONTH); year = chrp_cmos_clock_read(RTC_YEAR); - uip |= chrp_cmos_clock_read(RTC_FREQ_SELECT); - if ((uip & RTC_UIP)==0) break; - } + } while (sec != chrp_cmos_clock_read(RTC_SECONDS)); if (!(chrp_cmos_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { BCD_TO_BIN(sec); diff --git a/arch/powerpc/platforms/maple/time.c b/arch/powerpc/platforms/maple/time.c index 5e6981d17379..b9a2b3d4bf33 100644 --- a/arch/powerpc/platforms/maple/time.c +++ b/arch/powerpc/platforms/maple/time.c @@ -60,34 +60,14 @@ static void maple_clock_write(unsigned long val, int addr) void maple_get_rtc_time(struct rtc_time *tm) { - int uip, i; - - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - - /* Since the UIP flag is set for about 2.2 ms and the clock - * is typically written with a precision of 1 jiffy, trying - * to obtain a precision better than a few milliseconds is - * an illusion. Only consistency is interesting, this also - * allows to use the routine for /dev/rtc without a potential - * 1 second kernel busy loop triggered by any reader of /dev/rtc. - */ - - for (i = 0; i<1000000; i++) { - uip = maple_clock_read(RTC_FREQ_SELECT); + do { tm->tm_sec = maple_clock_read(RTC_SECONDS); tm->tm_min = maple_clock_read(RTC_MINUTES); tm->tm_hour = maple_clock_read(RTC_HOURS); tm->tm_mday = maple_clock_read(RTC_DAY_OF_MONTH); tm->tm_mon = maple_clock_read(RTC_MONTH); tm->tm_year = maple_clock_read(RTC_YEAR); - uip |= maple_clock_read(RTC_FREQ_SELECT); - if ((uip & RTC_UIP)==0) - break; - } + } while (tm->tm_sec != maple_clock_read(RTC_SECONDS)); if (!(maple_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index 9a4b592e40bc..1773103354be 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -95,16 +95,16 @@ static struct device_node *derive_parent(const char *path) return parent; } -static struct notifier_block *pSeries_reconfig_chain; +static BLOCKING_NOTIFIER_HEAD(pSeries_reconfig_chain); int pSeries_reconfig_notifier_register(struct notifier_block *nb) { - return notifier_chain_register(&pSeries_reconfig_chain, nb); + return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb); } void pSeries_reconfig_notifier_unregister(struct notifier_block *nb) { - notifier_chain_unregister(&pSeries_reconfig_chain, nb); + blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb); } static int pSeries_reconfig_add_node(const char *path, struct property *proplist) @@ -132,7 +132,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist goto out_err; } - err = notifier_call_chain(&pSeries_reconfig_chain, + err = blocking_notifier_call_chain(&pSeries_reconfig_chain, PSERIES_RECONFIG_ADD, np); if (err == NOTIFY_BAD) { printk(KERN_ERR "Failed to add device node %s\n", path); @@ -172,7 +172,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np) remove_node_proc_entries(np); - notifier_call_chain(&pSeries_reconfig_chain, + blocking_notifier_call_chain(&pSeries_reconfig_chain, PSERIES_RECONFIG_REMOVE, np); of_detach_node(np); diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c index eabac6cad1f5..75c645043746 100644 --- a/arch/ppc/kernel/ppc_htab.c +++ b/arch/ppc/kernel/ppc_htab.c @@ -52,7 +52,7 @@ static int ppc_htab_open(struct inode *inode, struct file *file) return single_open(file, ppc_htab_show, NULL); } -struct file_operations ppc_htab_operations = { +const struct file_operations ppc_htab_operations = { .open = ppc_htab_open, .read = seq_read, .llseek = seq_lseek, diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c index fa46f8ce5c71..e86f6156d589 100644 --- a/arch/ppc/platforms/prep_setup.c +++ b/arch/ppc/platforms/prep_setup.c @@ -736,7 +736,7 @@ ibm_statusled_progress(char *s, unsigned short hex) hex = 0xfff; if (!notifier_installed) { ++notifier_installed; - notifier_chain_register(&panic_notifier_list, + atomic_notifier_chain_register(&panic_notifier_list, &ibm_statusled_block); } } diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 99182a415fe7..4a0f5a1551ea 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -76,17 +76,17 @@ unsigned long thread_saved_pc(struct task_struct *tsk) /* * Need to know about CPUs going idle? */ -static struct notifier_block *idle_chain; +static ATOMIC_NOTIFIER_HEAD(idle_chain); int register_idle_notifier(struct notifier_block *nb) { - return notifier_chain_register(&idle_chain, nb); + return atomic_notifier_chain_register(&idle_chain, nb); } EXPORT_SYMBOL(register_idle_notifier); int unregister_idle_notifier(struct notifier_block *nb) { - return notifier_chain_unregister(&idle_chain, nb); + return atomic_notifier_chain_unregister(&idle_chain, nb); } EXPORT_SYMBOL(unregister_idle_notifier); @@ -95,7 +95,7 @@ void do_monitor_call(struct pt_regs *regs, long interruption_code) /* disable monitor call class 0 */ __ctl_clear_bit(8, 15); - notifier_call_chain(&idle_chain, CPU_NOT_IDLE, + atomic_notifier_call_chain(&idle_chain, CPU_NOT_IDLE, (void *)(long) smp_processor_id()); } @@ -116,7 +116,8 @@ static void default_idle(void) return; } - rc = notifier_call_chain(&idle_chain, CPU_IDLE, (void *)(long) cpu); + rc = atomic_notifier_call_chain(&idle_chain, + CPU_IDLE, (void *)(long) cpu); if (rc != NOTIFY_OK && rc != NOTIFY_DONE) BUG(); if (rc != NOTIFY_OK) { diff --git a/arch/sh/boards/mpc1211/rtc.c b/arch/sh/boards/mpc1211/rtc.c index 4d100f048072..a76c655dceee 100644 --- a/arch/sh/boards/mpc1211/rtc.c +++ b/arch/sh/boards/mpc1211/rtc.c @@ -9,36 +9,16 @@ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/time.h> +#include <linux/bcd.h> #include <linux/mc146818rtc.h> -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - -/* arc/i386/kernel/time.c */ unsigned long get_cmos_time(void) { unsigned int year, mon, day, hour, min, sec; - int i; spin_lock(&rtc_lock); - /* The Linux interpretation of the CMOS clock register contents: - * When the Update-In-Progress (UIP) flag goes from 1 to 0, the - * RTC registers show the second which has precisely just started. - * Let's hope other operating systems interpret the RTC the same way. - */ - /* read RTC exactly on falling edge of update flag */ - for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ - if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) - break; - for (i = 0 ; i < 1000000 ; i++) /* must try at least 2.228 ms */ - if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) - break; - do { /* Isn't this overkill ? UIP above should guarantee consistency */ + + do { sec = CMOS_READ(RTC_SECONDS); min = CMOS_READ(RTC_MINUTES); hour = CMOS_READ(RTC_HOURS); @@ -46,18 +26,22 @@ unsigned long get_cmos_time(void) mon = CMOS_READ(RTC_MONTH); year = CMOS_READ(RTC_YEAR); } while (sec != CMOS_READ(RTC_SECONDS)); - if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - { - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); - } + + if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { + BCD_TO_BIN(sec); + BCD_TO_BIN(min); + BCD_TO_BIN(hour); + BCD_TO_BIN(day); + BCD_TO_BIN(mon); + BCD_TO_BIN(year); + } + spin_unlock(&rtc_lock); - if ((year += 1900) < 1970) + + year += 1900; + if (year < 1970) year += 100; + return mktime(year, mon, day, hour, min, sec); } diff --git a/arch/sh/boards/sh03/rtc.c b/arch/sh/boards/sh03/rtc.c index cbeca7037ba5..d609863cfe53 100644 --- a/arch/sh/boards/sh03/rtc.c +++ b/arch/sh/boards/sh03/rtc.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/time.h> +#include <linux/bcd.h> #include <asm/io.h> #include <linux/rtc.h> #include <linux/spinlock.h> @@ -33,14 +34,6 @@ #define RTC_BUSY 1 #define RTC_STOP 2 -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - extern void (*rtc_get_time)(struct timespec *); extern int (*rtc_set_time)(const time_t); extern spinlock_t rtc_lock; @@ -48,13 +41,9 @@ extern spinlock_t rtc_lock; unsigned long get_cmos_time(void) { unsigned int year, mon, day, hour, min, sec; - int i; spin_lock(&rtc_lock); again: - for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */ - if (!(ctrl_inb(RTC_CTL) & RTC_BUSY)) - break; do { sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10; min = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10; diff --git a/arch/sh/kernel/cpu/rtc.c b/arch/sh/kernel/cpu/rtc.c index f8361f5e788b..4304cf75cfa2 100644 --- a/arch/sh/kernel/cpu/rtc.c +++ b/arch/sh/kernel/cpu/rtc.c @@ -9,18 +9,10 @@ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/time.h> - +#include <linux/bcd.h> #include <asm/io.h> #include <asm/rtc.h> -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - void sh_rtc_gettimeofday(struct timespec *ts) { unsigned int sec128, sec, sec2, min, hr, wk, day, mon, yr, yr100, cf_bit; diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index c0e79843f580..7ee4ca203616 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -20,6 +20,7 @@ #include <linux/root_dev.h> #include <linux/utsname.h> #include <linux/cpu.h> +#include <linux/pfn.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/sections.h> @@ -275,10 +276,6 @@ void __init setup_arch(char **cmdline_p) sh_mv_setup(cmdline_p); -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) -#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define PFN_PHYS(x) ((x) << PAGE_SHIFT) - /* * Find the highest page frame number we have available */ diff --git a/arch/sh64/kernel/setup.c b/arch/sh64/kernel/setup.c index c7a7b816a30f..d2711c9c9d13 100644 --- a/arch/sh64/kernel/setup.c +++ b/arch/sh64/kernel/setup.c @@ -48,6 +48,7 @@ #include <linux/root_dev.h> #include <linux/cpu.h> #include <linux/initrd.h> +#include <linux/pfn.h> #include <asm/processor.h> #include <asm/page.h> #include <asm/pgtable.h> diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c index 0773c9f389f3..6b8f4d22abc6 100644 --- a/arch/sh64/kernel/time.c +++ b/arch/sh64/kernel/time.c @@ -30,6 +30,7 @@ #include <linux/profile.h> #include <linux/smp.h> #include <linux/module.h> +#include <linux/bcd.h> #include <asm/registers.h> /* required by inline __asm__ stmt. */ @@ -105,14 +106,6 @@ #define RCR1 rtc_base+0x38 #define RCR2 rtc_base+0x3c -#ifndef BCD_TO_BIN -#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) -#endif - -#ifndef BIN_TO_BCD -#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) -#endif - #define TICK_SIZE (tick_nsec / 1000) extern unsigned long wall_jiffies; diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c index 7d61f1bfd3d3..e55b5c6ece02 100644 --- a/arch/sparc64/kernel/time.c +++ b/arch/sparc64/kernel/time.c @@ -641,23 +641,8 @@ static void __init set_system_time(void) mon = MSTK_REG_MONTH(mregs); year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) ); } else { - int i; - /* Dallas 12887 RTC chip. */ - /* Stolen from arch/i386/kernel/time.c, see there for - * credits and descriptive comments. - */ - for (i = 0; i < 1000000; i++) { - if (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP) - break; - udelay(10); - } - for (i = 0; i < 1000000; i++) { - if (!(CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP)) - break; - udelay(10); - } do { sec = CMOS_READ(RTC_SECONDS); min = CMOS_READ(RTC_MINUTES); @@ -666,6 +651,7 @@ static void __init set_system_time(void) mon = CMOS_READ(RTC_MONTH); year = CMOS_READ(RTC_YEAR); } while (sec != CMOS_READ(RTC_SECONDS)); + if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { BCD_TO_BIN(sec); BCD_TO_BIN(min); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index df612e4f75f9..ff090bb9734b 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -43,18 +43,19 @@ #include <linux/kmod.h> #endif -struct notifier_block *sparc64die_chain; -static DEFINE_SPINLOCK(die_notifier_lock); +ATOMIC_NOTIFIER_HEAD(sparc64die_chain); int register_die_notifier(struct notifier_block *nb) { - int err = 0; - unsigned long flags; - spin_lock_irqsave(&die_notifier_lock, flags); - err = notifier_chain_register(&sparc64die_chain, nb); - spin_unlock_irqrestore(&die_notifier_lock, flags); - return err; + return atomic_notifier_chain_register(&sparc64die_chain, nb); } +EXPORT_SYMBOL(register_die_notifier); + +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&sparc64die_chain, nb); +} +EXPORT_SYMBOL(unregister_die_notifier); /* When an irrecoverable trap occurs at tl > 0, the trap entry * code logs the trap state registers at every level in the trap diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index d21ff3230c02..0db2f7d9fab5 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -413,12 +413,12 @@ good_area: #ifdef CONFIG_HUGETLB_PAGE mm_rss -= (mm->context.huge_pte_count * (HPAGE_SIZE / PAGE_SIZE)); #endif - if (unlikely(mm_rss >= + if (unlikely(mm_rss > mm->context.tsb_block[MM_TSB_BASE].tsb_rss_limit)) tsb_grow(mm, MM_TSB_BASE, mm_rss); #ifdef CONFIG_HUGETLB_PAGE mm_rss = mm->context.huge_pte_count; - if (unlikely(mm_rss >= + if (unlikely(mm_rss > mm->context.tsb_block[MM_TSB_HUGE].tsb_rss_limit)) tsb_grow(mm, MM_TSB_HUGE, mm_rss); #endif diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 54388d10bcf9..1488816588ea 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -762,7 +762,8 @@ static struct notifier_block panic_exit_notifier = { static int add_notifier(void) { - notifier_chain_register(&panic_notifier_list, &panic_exit_notifier); + atomic_notifier_chain_register(&panic_notifier_list, + &panic_exit_notifier); return(0); } diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index fa617e0719ab..0336575d2448 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -71,7 +71,7 @@ struct io_thread_req { int error; }; -extern int open_ubd_file(char *file, struct openflags *openflags, +extern int open_ubd_file(char *file, struct openflags *openflags, int shared, char **backing_file_out, int *bitmap_offset_out, unsigned long *bitmap_len_out, int *data_offset_out, int *create_cow_out); @@ -137,7 +137,7 @@ static int fake_major = MAJOR_NR; static struct gendisk *ubd_gendisk[MAX_DEV]; static struct gendisk *fake_gendisk[MAX_DEV]; - + #ifdef CONFIG_BLK_DEV_UBD_SYNC #define OPEN_FLAGS ((struct openflags) { .r = 1, .w = 1, .s = 1, .c = 0, \ .cl = 1 }) @@ -168,6 +168,7 @@ struct ubd { __u64 size; struct openflags boot_openflags; struct openflags openflags; + int shared; int no_cow; struct cow cow; struct platform_device pdev; @@ -189,6 +190,7 @@ struct ubd { .boot_openflags = OPEN_FLAGS, \ .openflags = OPEN_FLAGS, \ .no_cow = 0, \ + .shared = 0, \ .cow = DEFAULT_COW, \ } @@ -305,7 +307,7 @@ static int ubd_setup_common(char *str, int *index_out) } major = simple_strtoul(str, &end, 0); if((*end != '\0') || (end == str)){ - printk(KERN_ERR + printk(KERN_ERR "ubd_setup : didn't parse major number\n"); return(1); } @@ -316,7 +318,7 @@ static int ubd_setup_common(char *str, int *index_out) printk(KERN_ERR "Can't assign a fake major twice\n"); goto out1; } - + fake_major = major; printk(KERN_INFO "Setting extra ubd major number to %d\n", @@ -351,7 +353,7 @@ static int ubd_setup_common(char *str, int *index_out) if (index_out) *index_out = n; - for (i = 0; i < 4; i++) { + for (i = 0; i < sizeof("rscd="); i++) { switch (*str) { case 'r': flags.w = 0; @@ -362,11 +364,14 @@ static int ubd_setup_common(char *str, int *index_out) case 'd': dev->no_cow = 1; break; + case 'c': + dev->shared = 1; + break; case '=': str++; goto break_loop; default: - printk(KERN_ERR "ubd_setup : Expected '=' or flag letter (r,s or d)\n"); + printk(KERN_ERR "ubd_setup : Expected '=' or flag letter (r, s, c, or d)\n"); goto out; } str++; @@ -515,7 +520,7 @@ static void ubd_handler(void) spin_unlock(&ubd_io_lock); return; } - + ubd_finish(rq, req.error); reactivate_fd(thread_fd, UBD_IRQ); do_ubd_request(ubd_queue); @@ -532,7 +537,7 @@ static int io_pid = -1; void kill_io_thread(void) { - if(io_pid != -1) + if(io_pid != -1) os_kill_process(io_pid, 1); } @@ -567,14 +572,15 @@ static int ubd_open_dev(struct ubd *dev) create_cow = 0; create_ptr = (dev->cow.file != NULL) ? &create_cow : NULL; back_ptr = dev->no_cow ? NULL : &dev->cow.file; - dev->fd = open_ubd_file(dev->file, &dev->openflags, back_ptr, - &dev->cow.bitmap_offset, &dev->cow.bitmap_len, - &dev->cow.data_offset, create_ptr); + dev->fd = open_ubd_file(dev->file, &dev->openflags, dev->shared, + back_ptr, &dev->cow.bitmap_offset, + &dev->cow.bitmap_len, &dev->cow.data_offset, + create_ptr); if((dev->fd == -ENOENT) && create_cow){ - dev->fd = create_cow_file(dev->file, dev->cow.file, + dev->fd = create_cow_file(dev->file, dev->cow.file, dev->openflags, 1 << 9, PAGE_SIZE, - &dev->cow.bitmap_offset, + &dev->cow.bitmap_offset, &dev->cow.bitmap_len, &dev->cow.data_offset); if(dev->fd >= 0){ @@ -598,16 +604,16 @@ static int ubd_open_dev(struct ubd *dev) } flush_tlb_kernel_vm(); - err = read_cow_bitmap(dev->fd, dev->cow.bitmap, - dev->cow.bitmap_offset, + err = read_cow_bitmap(dev->fd, dev->cow.bitmap, + dev->cow.bitmap_offset, dev->cow.bitmap_len); if(err < 0) goto error; flags = dev->openflags; flags.w = 0; - err = open_ubd_file(dev->cow.file, &flags, NULL, NULL, NULL, - NULL, NULL); + err = open_ubd_file(dev->cow.file, &flags, dev->shared, NULL, + NULL, NULL, NULL, NULL); if(err < 0) goto error; dev->cow.fd = err; } @@ -685,11 +691,11 @@ static int ubd_add(int n) dev->size = ROUND_BLOCK(dev->size); err = ubd_new_disk(MAJOR_NR, dev->size, n, &ubd_gendisk[n]); - if(err) + if(err) goto out_close; - + if(fake_major != MAJOR_NR) - ubd_new_disk(fake_major, dev->size, n, + ubd_new_disk(fake_major, dev->size, n, &fake_gendisk[n]); /* perhaps this should also be under the "if (fake_major)" above */ @@ -854,7 +860,7 @@ int ubd_init(void) return -1; } platform_driver_register(&ubd_driver); - for (i = 0; i < MAX_DEV; i++) + for (i = 0; i < MAX_DEV; i++) ubd_add(i); return 0; } @@ -872,16 +878,16 @@ int ubd_driver_init(void){ * enough. So use anyway the io thread. */ } stack = alloc_stack(0, 0); - io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *), + io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *), &thread_fd); if(io_pid < 0){ - printk(KERN_ERR + printk(KERN_ERR "ubd : Failed to start I/O thread (errno = %d) - " "falling back to synchronous I/O\n", -io_pid); io_pid = -1; return(0); } - err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr, + err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr, SA_INTERRUPT, "ubd", ubd_dev); if(err != 0) printk(KERN_ERR "um_request_irq failed - errno = %d\n", -err); @@ -978,7 +984,7 @@ static void cowify_req(struct io_thread_req *req, unsigned long *bitmap, if(req->op == UBD_READ) { for(i = 0; i < req->length >> 9; i++){ if(ubd_test_bit(sector + i, (unsigned char *) bitmap)) - ubd_set_bit(i, (unsigned char *) + ubd_set_bit(i, (unsigned char *) &req->sector_mask); } } @@ -999,7 +1005,7 @@ static int prepare_request(struct request *req, struct io_thread_req *io_req) /* This should be impossible now */ if((rq_data_dir(req) == WRITE) && !dev->openflags.w){ - printk("Write attempted on readonly ubd device %s\n", + printk("Write attempted on readonly ubd device %s\n", disk->disk_name); end_request(req, 0); return(1); @@ -1182,7 +1188,7 @@ int read_cow_bitmap(int fd, void *buf, int offset, int len) return(0); } -int open_ubd_file(char *file, struct openflags *openflags, +int open_ubd_file(char *file, struct openflags *openflags, int shared, char **backing_file_out, int *bitmap_offset_out, unsigned long *bitmap_len_out, int *data_offset_out, int *create_cow_out) @@ -1206,10 +1212,14 @@ int open_ubd_file(char *file, struct openflags *openflags, return fd; } - err = os_lock_file(fd, openflags->w); - if(err < 0){ - printk("Failed to lock '%s', err = %d\n", file, -err); - goto out_close; + if(shared) + printk("Not locking \"%s\" on the host\n", file); + else { + err = os_lock_file(fd, openflags->w); + if(err < 0){ + printk("Failed to lock '%s', err = %d\n", file, -err); + goto out_close; + } } /* Succesful return case! */ @@ -1260,7 +1270,7 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags, int err, fd; flags.c = 1; - fd = open_ubd_file(cow_file, &flags, NULL, NULL, NULL, NULL, NULL); + fd = open_ubd_file(cow_file, &flags, 0, NULL, NULL, NULL, NULL, NULL); if(fd < 0){ err = fd; printk("Open of COW file '%s' failed, errno = %d\n", cow_file, diff --git a/arch/um/include/irq_user.h b/arch/um/include/irq_user.h index b61deb8b362a..69a93c804f0e 100644 --- a/arch/um/include/irq_user.h +++ b/arch/um/include/irq_user.h @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -6,6 +6,17 @@ #ifndef __IRQ_USER_H__ #define __IRQ_USER_H__ +struct irq_fd { + struct irq_fd *next; + void *id; + int fd; + int type; + int irq; + int pid; + int events; + int current_events; +}; + enum { IRQ_READ, IRQ_WRITE }; extern void sigio_handler(int sig, union uml_pt_regs *regs); @@ -16,8 +27,6 @@ extern void reactivate_fd(int fd, int irqnum); extern void deactivate_fd(int fd, int irqnum); extern int deactivate_all_fds(void); extern void forward_interrupts(int pid); -extern void init_irq_signals(int on_sigstack); -extern void forward_ipi(int fd, int pid); extern int activate_ipi(int fd, int pid); extern unsigned long irq_lock(void); extern void irq_unlock(unsigned long flags); diff --git a/arch/um/include/kern.h b/arch/um/include/kern.h index 7d223beccbc0..4ce3fc650e57 100644 --- a/arch/um/include/kern.h +++ b/arch/um/include/kern.h @@ -29,7 +29,7 @@ extern int getuid(void); extern int getgid(void); extern int pause(void); extern int write(int, const void *, int); -extern int exit(int); +extern void exit(int); extern int close(int); extern int read(unsigned int, char *, int); extern int pipe(int *); diff --git a/arch/um/include/misc_constants.h b/arch/um/include/misc_constants.h new file mode 100644 index 000000000000..989bc08de36e --- /dev/null +++ b/arch/um/include/misc_constants.h @@ -0,0 +1,6 @@ +#ifndef __MISC_CONSTANT_H_ +#define __MISC_CONSTANT_H_ + +#include <user_constants.h> + +#endif diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 2a1c64d8d0bf..d3d1bc6074ef 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -12,6 +12,7 @@ #include "sysdep/ptrace.h" #include "kern_util.h" #include "skas/mm_id.h" +#include "irq_user.h" #define OS_TYPE_FILE 1 #define OS_TYPE_DIR 2 @@ -121,6 +122,7 @@ static inline struct openflags of_cloexec(struct openflags flags) return(flags); } +/* file.c */ extern int os_stat_file(const char *file_name, struct uml_stat *buf); extern int os_stat_fd(const int fd, struct uml_stat *buf); extern int os_access(const char *file, int mode); @@ -156,10 +158,20 @@ extern int os_connect_socket(char *name); extern int os_file_type(char *file); extern int os_file_mode(char *file, struct openflags *mode_out); extern int os_lock_file(int fd, int excl); +extern void os_flush_stdout(void); +extern int os_stat_filesystem(char *path, long *bsize_out, + long long *blocks_out, long long *bfree_out, + long long *bavail_out, long long *files_out, + long long *ffree_out, void *fsid_out, + int fsid_size, long *namelen_out, + long *spare_out); +extern int os_change_dir(char *dir); +extern int os_fchange_dir(int fd); /* start_up.c */ extern void os_early_checks(void); extern int can_do_skas(void); +extern void os_check_bugs(void); /* Make sure they are clear when running in TT mode. Required by * SEGV_MAYBE_FIXABLE */ @@ -198,6 +210,8 @@ extern void os_flush_stdout(void); /* tt.c * for tt mode only (will be deleted in future...) */ +extern void forward_ipi(int fd, int pid); +extern void kill_child_dead(int pid); extern void stop(void); extern int wait_for_stop(int pid, int sig, int cont_type, void *relay); extern int protect_memory(unsigned long addr, unsigned long len, @@ -294,4 +308,26 @@ extern void initial_thread_cb_skas(void (*proc)(void *), extern void halt_skas(void); extern void reboot_skas(void); +/* irq.c */ +extern int os_waiting_for_events(struct irq_fd *active_fds); +extern int os_isatty(int fd); +extern int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds); +extern void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg, + struct irq_fd *active_fds, struct irq_fd ***last_irq_ptr2); +extern void os_free_irq_later(struct irq_fd *active_fds, + int irq, void *dev_id); +extern int os_get_pollfd(int i); +extern void os_set_pollfd(int i, int fd); +extern void os_set_ioignore(void); +extern void init_irq_signals(int on_sigstack); + +/* sigio.c */ +extern void write_sigio_workaround(void); +extern int add_sigio_fd(int fd, int read); +extern int ignore_sigio_fd(int fd); + +/* skas/trap */ +extern void sig_handler_common_skas(int sig, void *sc_ptr); +extern void user_signal(int sig, union uml_pt_regs *regs, int pid); + #endif diff --git a/arch/um/include/sigio.h b/arch/um/include/sigio.h index 37d76e29a147..fe99ea163c2e 100644 --- a/arch/um/include/sigio.h +++ b/arch/um/include/sigio.h @@ -8,9 +8,6 @@ extern int write_sigio_irq(int fd); extern int register_sigio_fd(int fd); -extern int read_sigio_fd(int fd); -extern int add_sigio_fd(int fd, int read); -extern int ignore_sigio_fd(int fd); extern void sigio_lock(void); extern void sigio_unlock(void); diff --git a/arch/um/include/skas/mode-skas.h b/arch/um/include/skas/mode-skas.h index 260065cfeef1..8bc6916bbbb1 100644 --- a/arch/um/include/skas/mode-skas.h +++ b/arch/um/include/skas/mode-skas.h @@ -13,7 +13,6 @@ extern unsigned long exec_fp_regs[]; extern unsigned long exec_fpx_regs[]; extern int have_fpx_regs; -extern void sig_handler_common_skas(int sig, void *sc_ptr); extern void kill_off_processes_skas(void); #endif diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h index 86357282d681..853b26f148c5 100644 --- a/arch/um/include/skas/skas.h +++ b/arch/um/include/skas/skas.h @@ -17,7 +17,6 @@ extern int user_thread(unsigned long stack, int flags); extern void new_thread_proc(void *stack, void (*handler)(int sig)); extern void new_thread_handler(int sig); extern void handle_syscall(union uml_pt_regs *regs); -extern void user_signal(int sig, union uml_pt_regs *regs, int pid); extern int new_mm(unsigned long stack); extern void get_skas_faultinfo(int pid, struct faultinfo * fi); extern long execute_syscall_skas(void *r); diff --git a/arch/um/include/user_util.h b/arch/um/include/user_util.h index a6f1f176cf84..992a7e1e0fca 100644 --- a/arch/um/include/user_util.h +++ b/arch/um/include/user_util.h @@ -58,7 +58,6 @@ extern int attach(int pid); extern void kill_child_dead(int pid); extern int cont(int pid); extern void check_sigio(void); -extern void write_sigio_workaround(void); extern void arch_check_bugs(void); extern int cpu_feature(char *what, char *buf, int len); extern int arch_handle_signal(int sig, union uml_pt_regs *regs); diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index 693018ba80f1..fe08971b64cf 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile @@ -7,23 +7,20 @@ extra-y := vmlinux.lds clean-files := obj-y = config.o exec_kern.o exitcode.o \ - init_task.o irq.o irq_user.o ksyms.o mem.o physmem.o \ - process_kern.o ptrace.o reboot.o resource.o sigio_user.o sigio_kern.o \ + init_task.o irq.o ksyms.o mem.o physmem.o \ + process_kern.o ptrace.o reboot.o resource.o sigio_kern.o \ signal_kern.o smp.o syscall_kern.o sysrq.o \ time_kern.o tlb.o trap_kern.o uaccess.o um_arch.o umid.o obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o obj-$(CONFIG_GPROF) += gprof_syms.o obj-$(CONFIG_GCOV) += gmon_syms.o -obj-$(CONFIG_TTY_LOG) += tty_log.o obj-$(CONFIG_SYSCALL_DEBUG) += syscall.o obj-$(CONFIG_MODE_TT) += tt/ obj-$(CONFIG_MODE_SKAS) += skas/ -user-objs-$(CONFIG_TTY_LOG) += tty_log.o - -USER_OBJS := $(user-objs-y) config.o tty_log.o +USER_OBJS := config.o include arch/um/scripts/Makefile.rules diff --git a/arch/um/kernel/exec_kern.c b/arch/um/kernel/exec_kern.c index c264e1c05ab3..1ca84319317d 100644 --- a/arch/um/kernel/exec_kern.c +++ b/arch/um/kernel/exec_kern.c @@ -30,8 +30,6 @@ void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp) CHOOSE_MODE_PROC(start_thread_tt, start_thread_skas, regs, eip, esp); } -extern void log_exec(char **argv, void *tty); - static long execve1(char *file, char __user * __user *argv, char __user *__user *env) { diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index bbf94bf2921e..c39ea3abeda4 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -31,6 +31,8 @@ #include "irq_user.h" #include "irq_kern.h" #include "os.h" +#include "sigio.h" +#include "misc_constants.h" /* * Generic, controller-independent functions: @@ -77,6 +79,298 @@ skip: return 0; } +struct irq_fd *active_fds = NULL; +static struct irq_fd **last_irq_ptr = &active_fds; + +extern void free_irqs(void); + +void sigio_handler(int sig, union uml_pt_regs *regs) +{ + struct irq_fd *irq_fd; + int n; + + if(smp_sigio_handler()) return; + while(1){ + n = os_waiting_for_events(active_fds); + if (n <= 0) { + if(n == -EINTR) continue; + else break; + } + + for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){ + if(irq_fd->current_events != 0){ + irq_fd->current_events = 0; + do_IRQ(irq_fd->irq, regs); + } + } + } + + free_irqs(); +} + +static void maybe_sigio_broken(int fd, int type) +{ + if(os_isatty(fd)){ + if((type == IRQ_WRITE) && !pty_output_sigio){ + write_sigio_workaround(); + add_sigio_fd(fd, 0); + } + else if((type == IRQ_READ) && !pty_close_sigio){ + write_sigio_workaround(); + add_sigio_fd(fd, 1); + } + } +} + + +int activate_fd(int irq, int fd, int type, void *dev_id) +{ + struct pollfd *tmp_pfd; + struct irq_fd *new_fd, *irq_fd; + unsigned long flags; + int pid, events, err, n; + + pid = os_getpid(); + err = os_set_fd_async(fd, pid); + if(err < 0) + goto out; + + new_fd = um_kmalloc(sizeof(*new_fd)); + err = -ENOMEM; + if(new_fd == NULL) + goto out; + + if(type == IRQ_READ) events = UM_POLLIN | UM_POLLPRI; + else events = UM_POLLOUT; + *new_fd = ((struct irq_fd) { .next = NULL, + .id = dev_id, + .fd = fd, + .type = type, + .irq = irq, + .pid = pid, + .events = events, + .current_events = 0 } ); + + /* Critical section - locked by a spinlock because this stuff can + * be changed from interrupt handlers. The stuff above is done + * outside the lock because it allocates memory. + */ + + /* Actually, it only looks like it can be called from interrupt + * context. The culprit is reactivate_fd, which calls + * maybe_sigio_broken, which calls write_sigio_workaround, + * which calls activate_fd. However, write_sigio_workaround should + * only be called once, at boot time. That would make it clear that + * this is called only from process context, and can be locked with + * a semaphore. + */ + flags = irq_lock(); + for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){ + if((irq_fd->fd == fd) && (irq_fd->type == type)){ + printk("Registering fd %d twice\n", fd); + printk("Irqs : %d, %d\n", irq_fd->irq, irq); + printk("Ids : 0x%p, 0x%p\n", irq_fd->id, dev_id); + goto out_unlock; + } + } + + /*-------------*/ + if(type == IRQ_WRITE) + fd = -1; + + tmp_pfd = NULL; + n = 0; + + while(1){ + n = os_create_pollfd(fd, events, tmp_pfd, n); + if (n == 0) + break; + + /* n > 0 + * It means we couldn't put new pollfd to current pollfds + * and tmp_fds is NULL or too small for new pollfds array. + * Needed size is equal to n as minimum. + * + * Here we have to drop the lock in order to call + * kmalloc, which might sleep. + * If something else came in and changed the pollfds array + * so we will not be able to put new pollfd struct to pollfds + * then we free the buffer tmp_fds and try again. + */ + irq_unlock(flags); + if (tmp_pfd != NULL) { + kfree(tmp_pfd); + tmp_pfd = NULL; + } + + tmp_pfd = um_kmalloc(n); + if (tmp_pfd == NULL) + goto out_kfree; + + flags = irq_lock(); + } + /*-------------*/ + + *last_irq_ptr = new_fd; + last_irq_ptr = &new_fd->next; + + irq_unlock(flags); + + /* This calls activate_fd, so it has to be outside the critical + * section. + */ + maybe_sigio_broken(fd, type); + + return(0); + + out_unlock: + irq_unlock(flags); + out_kfree: + kfree(new_fd); + out: + return(err); +} + +static void free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg) +{ + unsigned long flags; + + flags = irq_lock(); + os_free_irq_by_cb(test, arg, active_fds, &last_irq_ptr); + irq_unlock(flags); +} + +struct irq_and_dev { + int irq; + void *dev; +}; + +static int same_irq_and_dev(struct irq_fd *irq, void *d) +{ + struct irq_and_dev *data = d; + + return((irq->irq == data->irq) && (irq->id == data->dev)); +} + +void free_irq_by_irq_and_dev(unsigned int irq, void *dev) +{ + struct irq_and_dev data = ((struct irq_and_dev) { .irq = irq, + .dev = dev }); + + free_irq_by_cb(same_irq_and_dev, &data); +} + +static int same_fd(struct irq_fd *irq, void *fd) +{ + return(irq->fd == *((int *) fd)); +} + +void free_irq_by_fd(int fd) +{ + free_irq_by_cb(same_fd, &fd); +} + +static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out) +{ + struct irq_fd *irq; + int i = 0; + int fdi; + + for(irq=active_fds; irq != NULL; irq = irq->next){ + if((irq->fd == fd) && (irq->irq == irqnum)) break; + i++; + } + if(irq == NULL){ + printk("find_irq_by_fd doesn't have descriptor %d\n", fd); + goto out; + } + fdi = os_get_pollfd(i); + if((fdi != -1) && (fdi != fd)){ + printk("find_irq_by_fd - mismatch between active_fds and " + "pollfds, fd %d vs %d, need %d\n", irq->fd, + fdi, fd); + irq = NULL; + goto out; + } + *index_out = i; + out: + return(irq); +} + +void reactivate_fd(int fd, int irqnum) +{ + struct irq_fd *irq; + unsigned long flags; + int i; + + flags = irq_lock(); + irq = find_irq_by_fd(fd, irqnum, &i); + if(irq == NULL){ + irq_unlock(flags); + return; + } + os_set_pollfd(i, irq->fd); + irq_unlock(flags); + + /* This calls activate_fd, so it has to be outside the critical + * section. + */ + maybe_sigio_broken(fd, irq->type); +} + +void deactivate_fd(int fd, int irqnum) +{ + struct irq_fd *irq; + unsigned long flags; + int i; + + flags = irq_lock(); + irq = find_irq_by_fd(fd, irqnum, &i); + if(irq == NULL) + goto out; + os_set_pollfd(i, -1); + out: + irq_unlock(flags); +} + +int deactivate_all_fds(void) +{ + struct irq_fd *irq; + int err; + + for(irq=active_fds;irq != NULL;irq = irq->next){ + err = os_clear_fd_async(irq->fd); + if(err) + return(err); + } + /* If there is a signal already queued, after unblocking ignore it */ + os_set_ioignore(); + + return(0); +} + +void forward_interrupts(int pid) +{ + struct irq_fd *irq; + unsigned long flags; + int err; + + flags = irq_lock(); + for(irq=active_fds;irq != NULL;irq = irq->next){ + err = os_set_owner(irq->fd, pid); + if(err < 0){ + /* XXX Just remove the irq rather than + * print out an infinite stream of these + */ + printk("Failed to forward %d to pid %d, err = %d\n", + irq->fd, pid, -err); + } + + irq->pid = pid; + } + irq_unlock(flags); +} + /* * do_IRQ handles all normal device IRQ's (the special * SMP cross-CPU interrupts have their own specific diff --git a/arch/um/kernel/irq_user.c b/arch/um/kernel/irq_user.c deleted file mode 100644 index 0e32f5f4a887..000000000000 --- a/arch/um/kernel/irq_user.c +++ /dev/null @@ -1,412 +0,0 @@ -/* - * Copyright (C) 2000 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include <stdlib.h> -#include <unistd.h> -#include <errno.h> -#include <signal.h> -#include <string.h> -#include <sys/poll.h> -#include <sys/types.h> -#include <sys/time.h> -#include "user_util.h" -#include "kern_util.h" -#include "user.h" -#include "process.h" -#include "sigio.h" -#include "irq_user.h" -#include "os.h" - -struct irq_fd { - struct irq_fd *next; - void *id; - int fd; - int type; - int irq; - int pid; - int events; - int current_events; -}; - -static struct irq_fd *active_fds = NULL; -static struct irq_fd **last_irq_ptr = &active_fds; - -static struct pollfd *pollfds = NULL; -static int pollfds_num = 0; -static int pollfds_size = 0; - -extern int io_count, intr_count; - -extern void free_irqs(void); - -void sigio_handler(int sig, union uml_pt_regs *regs) -{ - struct irq_fd *irq_fd; - int i, n; - - if(smp_sigio_handler()) return; - while(1){ - n = poll(pollfds, pollfds_num, 0); - if(n < 0){ - if(errno == EINTR) continue; - printk("sigio_handler : poll returned %d, " - "errno = %d\n", n, errno); - break; - } - if(n == 0) break; - - irq_fd = active_fds; - for(i = 0; i < pollfds_num; i++){ - if(pollfds[i].revents != 0){ - irq_fd->current_events = pollfds[i].revents; - pollfds[i].fd = -1; - } - irq_fd = irq_fd->next; - } - - for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){ - if(irq_fd->current_events != 0){ - irq_fd->current_events = 0; - do_IRQ(irq_fd->irq, regs); - } - } - } - - free_irqs(); -} - -int activate_ipi(int fd, int pid) -{ - return(os_set_fd_async(fd, pid)); -} - -static void maybe_sigio_broken(int fd, int type) -{ - if(isatty(fd)){ - if((type == IRQ_WRITE) && !pty_output_sigio){ - write_sigio_workaround(); - add_sigio_fd(fd, 0); - } - else if((type == IRQ_READ) && !pty_close_sigio){ - write_sigio_workaround(); - add_sigio_fd(fd, 1); - } - } -} - -int activate_fd(int irq, int fd, int type, void *dev_id) -{ - struct pollfd *tmp_pfd; - struct irq_fd *new_fd, *irq_fd; - unsigned long flags; - int pid, events, err, n, size; - - pid = os_getpid(); - err = os_set_fd_async(fd, pid); - if(err < 0) - goto out; - - new_fd = um_kmalloc(sizeof(*new_fd)); - err = -ENOMEM; - if(new_fd == NULL) - goto out; - - if(type == IRQ_READ) events = POLLIN | POLLPRI; - else events = POLLOUT; - *new_fd = ((struct irq_fd) { .next = NULL, - .id = dev_id, - .fd = fd, - .type = type, - .irq = irq, - .pid = pid, - .events = events, - .current_events = 0 } ); - - /* Critical section - locked by a spinlock because this stuff can - * be changed from interrupt handlers. The stuff above is done - * outside the lock because it allocates memory. - */ - - /* Actually, it only looks like it can be called from interrupt - * context. The culprit is reactivate_fd, which calls - * maybe_sigio_broken, which calls write_sigio_workaround, - * which calls activate_fd. However, write_sigio_workaround should - * only be called once, at boot time. That would make it clear that - * this is called only from process context, and can be locked with - * a semaphore. - */ - flags = irq_lock(); - for(irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next){ - if((irq_fd->fd == fd) && (irq_fd->type == type)){ - printk("Registering fd %d twice\n", fd); - printk("Irqs : %d, %d\n", irq_fd->irq, irq); - printk("Ids : 0x%x, 0x%x\n", irq_fd->id, dev_id); - goto out_unlock; - } - } - - n = pollfds_num; - if(n == pollfds_size){ - while(1){ - /* Here we have to drop the lock in order to call - * kmalloc, which might sleep. If something else - * came in and changed the pollfds array, we free - * the buffer and try again. - */ - irq_unlock(flags); - size = (pollfds_num + 1) * sizeof(pollfds[0]); - tmp_pfd = um_kmalloc(size); - flags = irq_lock(); - if(tmp_pfd == NULL) - goto out_unlock; - if(n == pollfds_size) - break; - kfree(tmp_pfd); - } - if(pollfds != NULL){ - memcpy(tmp_pfd, pollfds, - sizeof(pollfds[0]) * pollfds_size); - kfree(pollfds); - } - pollfds = tmp_pfd; - pollfds_size++; - } - - if(type == IRQ_WRITE) - fd = -1; - - pollfds[pollfds_num] = ((struct pollfd) { .fd = fd, - .events = events, - .revents = 0 }); - pollfds_num++; - - *last_irq_ptr = new_fd; - last_irq_ptr = &new_fd->next; - - irq_unlock(flags); - - /* This calls activate_fd, so it has to be outside the critical - * section. - */ - maybe_sigio_broken(fd, type); - - return(0); - - out_unlock: - irq_unlock(flags); - kfree(new_fd); - out: - return(err); -} - -static void free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg) -{ - struct irq_fd **prev; - unsigned long flags; - int i = 0; - - flags = irq_lock(); - prev = &active_fds; - while(*prev != NULL){ - if((*test)(*prev, arg)){ - struct irq_fd *old_fd = *prev; - if((pollfds[i].fd != -1) && - (pollfds[i].fd != (*prev)->fd)){ - printk("free_irq_by_cb - mismatch between " - "active_fds and pollfds, fd %d vs %d\n", - (*prev)->fd, pollfds[i].fd); - goto out; - } - - pollfds_num--; - - /* This moves the *whole* array after pollfds[i] (though - * it doesn't spot as such)! */ - - memmove(&pollfds[i], &pollfds[i + 1], - (pollfds_num - i) * sizeof(pollfds[0])); - - if(last_irq_ptr == &old_fd->next) - last_irq_ptr = prev; - *prev = (*prev)->next; - if(old_fd->type == IRQ_WRITE) - ignore_sigio_fd(old_fd->fd); - kfree(old_fd); - continue; - } - prev = &(*prev)->next; - i++; - } - out: - irq_unlock(flags); -} - -struct irq_and_dev { - int irq; - void *dev; -}; - -static int same_irq_and_dev(struct irq_fd *irq, void *d) -{ - struct irq_and_dev *data = d; - - return((irq->irq == data->irq) && (irq->id == data->dev)); -} - -void free_irq_by_irq_and_dev(unsigned int irq, void *dev) -{ - struct irq_and_dev data = ((struct irq_and_dev) { .irq = irq, - .dev = dev }); - - free_irq_by_cb(same_irq_and_dev, &data); -} - -static int same_fd(struct irq_fd *irq, void *fd) -{ - return(irq->fd == *((int *) fd)); -} - -void free_irq_by_fd(int fd) -{ - free_irq_by_cb(same_fd, &fd); -} - -static struct irq_fd *find_irq_by_fd(int fd, int irqnum, int *index_out) -{ - struct irq_fd *irq; - int i = 0; - - for(irq=active_fds; irq != NULL; irq = irq->next){ - if((irq->fd == fd) && (irq->irq == irqnum)) break; - i++; - } - if(irq == NULL){ - printk("find_irq_by_fd doesn't have descriptor %d\n", fd); - goto out; - } - if((pollfds[i].fd != -1) && (pollfds[i].fd != fd)){ - printk("find_irq_by_fd - mismatch between active_fds and " - "pollfds, fd %d vs %d, need %d\n", irq->fd, - pollfds[i].fd, fd); - irq = NULL; - goto out; - } - *index_out = i; - out: - return(irq); -} - -void reactivate_fd(int fd, int irqnum) -{ - struct irq_fd *irq; - unsigned long flags; - int i; - - flags = irq_lock(); - irq = find_irq_by_fd(fd, irqnum, &i); - if(irq == NULL){ - irq_unlock(flags); - return; - } - - pollfds[i].fd = irq->fd; - - irq_unlock(flags); - - /* This calls activate_fd, so it has to be outside the critical - * section. - */ - maybe_sigio_broken(fd, irq->type); -} - -void deactivate_fd(int fd, int irqnum) -{ - struct irq_fd *irq; - unsigned long flags; - int i; - - flags = irq_lock(); - irq = find_irq_by_fd(fd, irqnum, &i); - if(irq == NULL) - goto out; - pollfds[i].fd = -1; - out: - irq_unlock(flags); -} - -int deactivate_all_fds(void) -{ - struct irq_fd *irq; - int err; - - for(irq=active_fds;irq != NULL;irq = irq->next){ - err = os_clear_fd_async(irq->fd); - if(err) - return(err); - } - /* If there is a signal already queued, after unblocking ignore it */ - set_handler(SIGIO, SIG_IGN, 0, -1); - - return(0); -} - -void forward_ipi(int fd, int pid) -{ - int err; - - err = os_set_owner(fd, pid); - if(err < 0) - printk("forward_ipi: set_owner failed, fd = %d, me = %d, " - "target = %d, err = %d\n", fd, os_getpid(), pid, -err); -} - -void forward_interrupts(int pid) -{ - struct irq_fd *irq; - unsigned long flags; - int err; - - flags = irq_lock(); - for(irq=active_fds;irq != NULL;irq = irq->next){ - err = os_set_owner(irq->fd, pid); - if(err < 0){ - /* XXX Just remove the irq rather than - * print out an infinite stream of these - */ - printk("Failed to forward %d to pid %d, err = %d\n", - irq->fd, pid, -err); - } - - irq->pid = pid; - } - irq_unlock(flags); -} - -void init_irq_signals(int on_sigstack) -{ - __sighandler_t h; - int flags; - - flags = on_sigstack ? SA_ONSTACK : 0; - if(timer_irq_inited) h = (__sighandler_t) alarm_handler; - else h = boot_timer_handler; - - set_handler(SIGVTALRM, h, flags | SA_RESTART, - SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1); - set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART, - SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); - signal(SIGWINCH, SIG_IGN); -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c index 0e65340eee33..0500800df1c1 100644 --- a/arch/um/kernel/physmem.c +++ b/arch/um/kernel/physmem.c @@ -9,6 +9,7 @@ #include "linux/vmalloc.h" #include "linux/bootmem.h" #include "linux/module.h" +#include "linux/pfn.h" #include "asm/types.h" #include "asm/pgtable.h" #include "kern_util.h" @@ -316,8 +317,6 @@ void map_memory(unsigned long virt, unsigned long phys, unsigned long len, } } -#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) - extern int __syscall_stub_start, __binary_start; void setup_physmem(unsigned long start, unsigned long reserve_end, diff --git a/arch/um/kernel/sigio_kern.c b/arch/um/kernel/sigio_kern.c index 229988463c4c..1c1300fb1e95 100644 --- a/arch/um/kernel/sigio_kern.c +++ b/arch/um/kernel/sigio_kern.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com) * Licensed under the GPL */ @@ -12,13 +12,16 @@ #include "sigio.h" #include "irq_user.h" #include "irq_kern.h" +#include "os.h" /* Protected by sigio_lock() called from write_sigio_workaround */ static int sigio_irq_fd = -1; static irqreturn_t sigio_interrupt(int irq, void *data, struct pt_regs *unused) { - read_sigio_fd(sigio_irq_fd); + char c; + + os_read_file(sigio_irq_fd, &c, sizeof(c)); reactivate_fd(sigio_irq_fd, SIGIO_WRITE_IRQ); return(IRQ_HANDLED); } @@ -51,6 +54,9 @@ void sigio_unlock(void) spin_unlock(&sigio_spinlock); } +extern void sigio_cleanup(void); +__uml_exitcall(sigio_cleanup); + /* * Overrides for Emacs so that we follow Linus's tabbing style. * Emacs will notice this stuff at the end of the file and automatically diff --git a/arch/um/kernel/smp.c b/arch/um/kernel/smp.c index 72113b0a96e7..c8d8d0ac1a7f 100644 --- a/arch/um/kernel/smp.c +++ b/arch/um/kernel/smp.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com) * Licensed under the GPL */ @@ -77,9 +77,9 @@ static int idle_proc(void *cpup) if(err < 0) panic("CPU#%d failed to create IPI pipe, err = %d", cpu, -err); - activate_ipi(cpu_data[cpu].ipi_pipe[0], + os_set_fd_async(cpu_data[cpu].ipi_pipe[0], current->thread.mode.tt.extern_pid); - + wmb(); if (cpu_test_and_set(cpu, cpu_callin_map)) { printk("huh, CPU#%d already present??\n", cpu); @@ -106,7 +106,7 @@ static struct task_struct *idle_thread(int cpu) panic("copy_process failed in idle_thread, error = %ld", PTR_ERR(new_task)); - cpu_tasks[cpu] = ((struct cpu_task) + cpu_tasks[cpu] = ((struct cpu_task) { .pid = new_task->thread.mode.tt.extern_pid, .task = new_task } ); idle_threads[cpu] = new_task; @@ -134,12 +134,12 @@ void smp_prepare_cpus(unsigned int maxcpus) if(err < 0) panic("CPU#0 failed to create IPI pipe, errno = %d", -err); - activate_ipi(cpu_data[me].ipi_pipe[0], + os_set_fd_async(cpu_data[me].ipi_pipe[0], current->thread.mode.tt.extern_pid); for(cpu = 1; cpu < ncpus; cpu++){ printk("Booting processor %d...\n", cpu); - + idle = idle_thread(cpu); init_idle(idle, cpu); @@ -223,7 +223,7 @@ void smp_call_function_slave(int cpu) atomic_inc(&scf_finished); } -int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic, +int smp_call_function(void (*_func)(void *info), void *_info, int nonatomic, int wait) { int cpus = num_online_cpus() - 1; diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 80c9c18aae94..7d51dd7201c3 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -421,7 +421,7 @@ int linux_main(int argc, char **argv) #ifndef CONFIG_HIGHMEM highmem = 0; printf("CONFIG_HIGHMEM not enabled - physical memory shrunk " - "to %lu bytes\n", physmem_size); + "to %Lu bytes\n", physmem_size); #endif } @@ -433,8 +433,8 @@ int linux_main(int argc, char **argv) setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); if(init_maps(physmem_size, iomem_size, highmem)){ - printf("Failed to allocate mem_map for %lu bytes of physical " - "memory and %lu bytes of highmem\n", physmem_size, + printf("Failed to allocate mem_map for %Lu bytes of physical " + "memory and %Lu bytes of highmem\n", physmem_size, highmem); exit(1); } @@ -477,7 +477,8 @@ static struct notifier_block panic_exit_notifier = { void __init setup_arch(char **cmdline_p) { - notifier_chain_register(&panic_notifier_list, &panic_exit_notifier); + atomic_notifier_chain_register(&panic_notifier_list, + &panic_exit_notifier); paging_init(); strlcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; @@ -487,8 +488,7 @@ void __init setup_arch(char **cmdline_p) void __init check_bugs(void) { arch_check_bugs(); - check_sigio(); - check_devanon(); + os_check_bugs(); } void apply_alternatives(struct alt_instr *start, struct alt_instr *end) diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile index 08a4e628b24c..1659386b42bb 100644 --- a/arch/um/os-Linux/Makefile +++ b/arch/um/os-Linux/Makefile @@ -3,14 +3,17 @@ # Licensed under the GPL # -obj-y = aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \ - start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o user_syms.o \ - util.o drivers/ sys-$(SUBARCH)/ +obj-y = aio.o elf_aux.o file.o helper.o irq.o main.o mem.o process.o sigio.o \ + signal.o start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o \ + user_syms.o util.o drivers/ sys-$(SUBARCH)/ obj-$(CONFIG_MODE_SKAS) += skas/ +obj-$(CONFIG_TTY_LOG) += tty_log.o +user-objs-$(CONFIG_TTY_LOG) += tty_log.o -USER_OBJS := aio.o elf_aux.o file.o helper.o main.o mem.o process.o signal.o \ - start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o util.o +USER_OBJS := $(user-objs-y) aio.o elf_aux.o file.o helper.o irq.o main.o mem.o \ + process.o sigio.o signal.o start_up.o time.o trap.o tt.o tty.o \ + uaccess.o umid.o util.o elf_aux.o: $(ARCH_DIR)/kernel-offsets.h CFLAGS_elf_aux.o += -I$(objtree)/arch/um diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c new file mode 100644 index 000000000000..e599be423da1 --- /dev/null +++ b/arch/um/os-Linux/irq.c @@ -0,0 +1,162 @@ +/* + * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <signal.h> +#include <string.h> +#include <sys/poll.h> +#include <sys/types.h> +#include <sys/time.h> +#include "user_util.h" +#include "kern_util.h" +#include "user.h" +#include "process.h" +#include "sigio.h" +#include "irq_user.h" +#include "os.h" + +static struct pollfd *pollfds = NULL; +static int pollfds_num = 0; +static int pollfds_size = 0; + +int os_waiting_for_events(struct irq_fd *active_fds) +{ + struct irq_fd *irq_fd; + int i, n, err; + + n = poll(pollfds, pollfds_num, 0); + if(n < 0){ + err = -errno; + if(errno != EINTR) + printk("sigio_handler: os_waiting_for_events:" + " poll returned %d, errno = %d\n", n, errno); + return err; + } + + if(n == 0) + return 0; + + irq_fd = active_fds; + + for(i = 0; i < pollfds_num; i++){ + if(pollfds[i].revents != 0){ + irq_fd->current_events = pollfds[i].revents; + pollfds[i].fd = -1; + } + irq_fd = irq_fd->next; + } + return n; +} + +int os_isatty(int fd) +{ + return(isatty(fd)); +} + +int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds) +{ + if (pollfds_num == pollfds_size) { + if (size_tmpfds <= pollfds_size * sizeof(pollfds[0])) { + /* return min size needed for new pollfds area */ + return((pollfds_size + 1) * sizeof(pollfds[0])); + } + + if(pollfds != NULL){ + memcpy(tmp_pfd, pollfds, + sizeof(pollfds[0]) * pollfds_size); + /* remove old pollfds */ + kfree(pollfds); + } + pollfds = tmp_pfd; + pollfds_size++; + } else { + /* remove not used tmp_pfd */ + if (tmp_pfd != NULL) + kfree(tmp_pfd); + } + + pollfds[pollfds_num] = ((struct pollfd) { .fd = fd, + .events = events, + .revents = 0 }); + pollfds_num++; + + return(0); +} + +void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg, + struct irq_fd *active_fds, struct irq_fd ***last_irq_ptr2) +{ + struct irq_fd **prev; + int i = 0; + + prev = &active_fds; + while(*prev != NULL){ + if((*test)(*prev, arg)){ + struct irq_fd *old_fd = *prev; + if((pollfds[i].fd != -1) && + (pollfds[i].fd != (*prev)->fd)){ + printk("os_free_irq_by_cb - mismatch between " + "active_fds and pollfds, fd %d vs %d\n", + (*prev)->fd, pollfds[i].fd); + goto out; + } + + pollfds_num--; + + /* This moves the *whole* array after pollfds[i] + * (though it doesn't spot as such)! + */ + + memmove(&pollfds[i], &pollfds[i + 1], + (pollfds_num - i) * sizeof(pollfds[0])); + if(*last_irq_ptr2 == &old_fd->next) + *last_irq_ptr2 = prev; + + *prev = (*prev)->next; + if(old_fd->type == IRQ_WRITE) + ignore_sigio_fd(old_fd->fd); + kfree(old_fd); + continue; + } + prev = &(*prev)->next; + i++; + } + out: + return; +} + + +int os_get_pollfd(int i) +{ + return(pollfds[i].fd); +} + +void os_set_pollfd(int i, int fd) +{ + pollfds[i].fd = fd; +} + +void os_set_ioignore(void) +{ + set_handler(SIGIO, SIG_IGN, 0, -1); +} + +void init_irq_signals(int on_sigstack) +{ + __sighandler_t h; + int flags; + + flags = on_sigstack ? SA_ONSTACK : 0; + if(timer_irq_inited) h = (__sighandler_t) alarm_handler; + else h = boot_timer_handler; + + set_handler(SIGVTALRM, h, flags | SA_RESTART, + SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1); + set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART, + SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1); + signal(SIGWINCH, SIG_IGN); +} diff --git a/arch/um/kernel/sigio_user.c b/arch/um/os-Linux/sigio.c index f7b18e157d35..9ba942947146 100644 --- a/arch/um/kernel/sigio_user.c +++ b/arch/um/os-Linux/sigio.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -20,128 +20,7 @@ #include "sigio.h" #include "os.h" -/* Changed during early boot */ -int pty_output_sigio = 0; -int pty_close_sigio = 0; - -/* Used as a flag during SIGIO testing early in boot */ -static volatile int got_sigio = 0; - -void __init handler(int sig) -{ - got_sigio = 1; -} - -struct openpty_arg { - int master; - int slave; - int err; -}; - -static void openpty_cb(void *arg) -{ - struct openpty_arg *info = arg; - - info->err = 0; - if(openpty(&info->master, &info->slave, NULL, NULL, NULL)) - info->err = -errno; -} - -void __init check_one_sigio(void (*proc)(int, int)) -{ - struct sigaction old, new; - struct openpty_arg pty = { .master = -1, .slave = -1 }; - int master, slave, err; - - initial_thread_cb(openpty_cb, &pty); - if(pty.err){ - printk("openpty failed, errno = %d\n", -pty.err); - return; - } - - master = pty.master; - slave = pty.slave; - - if((master == -1) || (slave == -1)){ - printk("openpty failed to allocate a pty\n"); - return; - } - - /* Not now, but complain so we now where we failed. */ - err = raw(master); - if (err < 0) - panic("check_sigio : __raw failed, errno = %d\n", -err); - - err = os_sigio_async(master, slave); - if(err < 0) - panic("tty_fds : sigio_async failed, err = %d\n", -err); - - if(sigaction(SIGIO, NULL, &old) < 0) - panic("check_sigio : sigaction 1 failed, errno = %d\n", errno); - new = old; - new.sa_handler = handler; - if(sigaction(SIGIO, &new, NULL) < 0) - panic("check_sigio : sigaction 2 failed, errno = %d\n", errno); - - got_sigio = 0; - (*proc)(master, slave); - - os_close_file(master); - os_close_file(slave); - - if(sigaction(SIGIO, &old, NULL) < 0) - panic("check_sigio : sigaction 3 failed, errno = %d\n", errno); -} - -static void tty_output(int master, int slave) -{ - int n; - char buf[512]; - - printk("Checking that host ptys support output SIGIO..."); - - memset(buf, 0, sizeof(buf)); - - while(os_write_file(master, buf, sizeof(buf)) > 0) ; - if(errno != EAGAIN) - panic("check_sigio : write failed, errno = %d\n", errno); - while(((n = os_read_file(slave, buf, sizeof(buf))) > 0) && !got_sigio) ; - - if (got_sigio) { - printk("Yes\n"); - pty_output_sigio = 1; - } else if (n == -EAGAIN) { - printk("No, enabling workaround\n"); - } else { - panic("check_sigio : read failed, err = %d\n", n); - } -} - -static void tty_close(int master, int slave) -{ - printk("Checking that host ptys support SIGIO on close..."); - - os_close_file(slave); - if(got_sigio){ - printk("Yes\n"); - pty_close_sigio = 1; - } - else printk("No, enabling workaround\n"); -} - -void __init check_sigio(void) -{ - if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) && - (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){ - printk("No pseudo-terminals available - skipping pty SIGIO " - "check\n"); - return; - } - check_one_sigio(tty_output); - check_one_sigio(tty_close); -} - -/* Protected by sigio_lock(), also used by sigio_cleanup, which is an +/* Protected by sigio_lock(), also used by sigio_cleanup, which is an * exitcall. */ static int write_sigio_pid = -1; @@ -150,8 +29,10 @@ static int write_sigio_pid = -1; * the descriptors closed after it is killed. So, it can't see them change. * On the UML side, they are changed under the sigio_lock. */ -static int write_sigio_fds[2] = { -1, -1 }; -static int sigio_private[2] = { -1, -1 }; +#define SIGIO_FDS_INIT {-1, -1} + +static int write_sigio_fds[2] = SIGIO_FDS_INIT; +static int sigio_private[2] = SIGIO_FDS_INIT; struct pollfds { struct pollfd *poll; @@ -264,13 +145,13 @@ static void update_thread(void) return; fail: /* Critical section start */ - if(write_sigio_pid != -1) + if(write_sigio_pid != -1) os_kill_process(write_sigio_pid, 1); write_sigio_pid = -1; - os_close_file(sigio_private[0]); - os_close_file(sigio_private[1]); - os_close_file(write_sigio_fds[0]); - os_close_file(write_sigio_fds[1]); + close(sigio_private[0]); + close(sigio_private[1]); + close(write_sigio_fds[0]); + close(write_sigio_fds[1]); /* Critical section end */ set_signals(flags); } @@ -281,13 +162,13 @@ int add_sigio_fd(int fd, int read) sigio_lock(); for(i = 0; i < current_poll.used; i++){ - if(current_poll.poll[i].fd == fd) + if(current_poll.poll[i].fd == fd) goto out; } n = current_poll.used + 1; err = need_poll(n); - if(err) + if(err) goto out; for(i = 0; i < current_poll.used; i++) @@ -316,7 +197,7 @@ int ignore_sigio_fd(int fd) } if(i == current_poll.used) goto out; - + err = need_poll(current_poll.used - 1); if(err) goto out; @@ -337,7 +218,7 @@ int ignore_sigio_fd(int fd) return(err); } -static struct pollfd* setup_initial_poll(int fd) +static struct pollfd *setup_initial_poll(int fd) { struct pollfd *p; @@ -377,7 +258,7 @@ void write_sigio_workaround(void) } err = os_pipe(l_sigio_private, 1, 1); if(err < 0){ - printk("write_sigio_workaround - os_pipe 1 failed, " + printk("write_sigio_workaround - os_pipe 2 failed, " "err = %d\n", -err); goto out_close1; } @@ -391,76 +272,52 @@ void write_sigio_workaround(void) /* Did we race? Don't try to optimize this, please, it's not so likely * to happen, and no more than once at the boot. */ if(write_sigio_pid != -1) - goto out_unlock; + goto out_free; - write_sigio_pid = run_helper_thread(write_sigio_thread, NULL, - CLONE_FILES | CLONE_VM, &stack, 0); - - if (write_sigio_pid < 0) - goto out_clear; + current_poll = ((struct pollfds) { .poll = p, + .used = 1, + .size = 1 }); if (write_sigio_irq(l_write_sigio_fds[0])) - goto out_kill; + goto out_clear_poll; - /* Success, finally. */ memcpy(write_sigio_fds, l_write_sigio_fds, sizeof(l_write_sigio_fds)); memcpy(sigio_private, l_sigio_private, sizeof(l_sigio_private)); - current_poll = ((struct pollfds) { .poll = p, - .used = 1, - .size = 1 }); + write_sigio_pid = run_helper_thread(write_sigio_thread, NULL, + CLONE_FILES | CLONE_VM, &stack, 0); - sigio_unlock(); - return; + if (write_sigio_pid < 0) + goto out_clear; - out_kill: - l_write_sigio_pid = write_sigio_pid; - write_sigio_pid = -1; sigio_unlock(); - /* Going to call waitpid, avoid holding the lock. */ - os_kill_process(l_write_sigio_pid, 1); - goto out_free; + return; - out_clear: +out_clear: write_sigio_pid = -1; - out_unlock: - sigio_unlock(); - out_free: + write_sigio_fds[0] = -1; + write_sigio_fds[1] = -1; + sigio_private[0] = -1; + sigio_private[1] = -1; +out_clear_poll: + current_poll = ((struct pollfds) { .poll = NULL, + .size = 0, + .used = 0 }); +out_free: kfree(p); - out_close2: - os_close_file(l_sigio_private[0]); - os_close_file(l_sigio_private[1]); - out_close1: - os_close_file(l_write_sigio_fds[0]); - os_close_file(l_write_sigio_fds[1]); - return; -} - -int read_sigio_fd(int fd) -{ - int n; - char c; - - n = os_read_file(fd, &c, sizeof(c)); - if(n != sizeof(c)){ - if(n < 0) { - printk("read_sigio_fd - read failed, err = %d\n", -n); - return(n); - } - else { - printk("read_sigio_fd - short read, bytes = %d\n", n); - return(-EIO); - } - } - return(n); + sigio_unlock(); +out_close2: + close(l_sigio_private[0]); + close(l_sigio_private[1]); +out_close1: + close(l_write_sigio_fds[0]); + close(l_write_sigio_fds[1]); } -static void sigio_cleanup(void) +void sigio_cleanup(void) { - if (write_sigio_pid != -1) { + if(write_sigio_pid != -1){ os_kill_process(write_sigio_pid, 1); write_sigio_pid = -1; } } - -__uml_exitcall(sigio_cleanup); diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 829d6b0d8b02..32753131f8d8 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -3,6 +3,7 @@ * Licensed under the GPL */ +#include <pty.h> #include <stdio.h> #include <stddef.h> #include <stdarg.h> @@ -539,3 +540,130 @@ int __init parse_iomem(char *str, int *add) return(1); } + +/* Changed during early boot */ +int pty_output_sigio = 0; +int pty_close_sigio = 0; + +/* Used as a flag during SIGIO testing early in boot */ +static volatile int got_sigio = 0; + +static void __init handler(int sig) +{ + got_sigio = 1; +} + +struct openpty_arg { + int master; + int slave; + int err; +}; + +static void openpty_cb(void *arg) +{ + struct openpty_arg *info = arg; + + info->err = 0; + if(openpty(&info->master, &info->slave, NULL, NULL, NULL)) + info->err = -errno; +} + +static void __init check_one_sigio(void (*proc)(int, int)) +{ + struct sigaction old, new; + struct openpty_arg pty = { .master = -1, .slave = -1 }; + int master, slave, err; + + initial_thread_cb(openpty_cb, &pty); + if(pty.err){ + printk("openpty failed, errno = %d\n", -pty.err); + return; + } + + master = pty.master; + slave = pty.slave; + + if((master == -1) || (slave == -1)){ + printk("openpty failed to allocate a pty\n"); + return; + } + + /* Not now, but complain so we now where we failed. */ + err = raw(master); + if (err < 0) + panic("check_sigio : __raw failed, errno = %d\n", -err); + + err = os_sigio_async(master, slave); + if(err < 0) + panic("tty_fds : sigio_async failed, err = %d\n", -err); + + if(sigaction(SIGIO, NULL, &old) < 0) + panic("check_sigio : sigaction 1 failed, errno = %d\n", errno); + new = old; + new.sa_handler = handler; + if(sigaction(SIGIO, &new, NULL) < 0) + panic("check_sigio : sigaction 2 failed, errno = %d\n", errno); + + got_sigio = 0; + (*proc)(master, slave); + + close(master); + close(slave); + + if(sigaction(SIGIO, &old, NULL) < 0) + panic("check_sigio : sigaction 3 failed, errno = %d\n", errno); +} + +static void tty_output(int master, int slave) +{ + int n; + char buf[512]; + + printk("Checking that host ptys support output SIGIO..."); + + memset(buf, 0, sizeof(buf)); + + while(os_write_file(master, buf, sizeof(buf)) > 0) ; + if(errno != EAGAIN) + panic("check_sigio : write failed, errno = %d\n", errno); + while(((n = os_read_file(slave, buf, sizeof(buf))) > 0) && !got_sigio) ; + + if(got_sigio){ + printk("Yes\n"); + pty_output_sigio = 1; + } + else if(n == -EAGAIN) printk("No, enabling workaround\n"); + else panic("check_sigio : read failed, err = %d\n", n); +} + +static void tty_close(int master, int slave) +{ + printk("Checking that host ptys support SIGIO on close..."); + + close(slave); + if(got_sigio){ + printk("Yes\n"); + pty_close_sigio = 1; + } + else printk("No, enabling workaround\n"); +} + +void __init check_sigio(void) +{ + if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) && + (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){ + printk("No pseudo-terminals available - skipping pty SIGIO " + "check\n"); + return; + } + check_one_sigio(tty_output); + check_one_sigio(tty_close); +} + +void os_check_bugs(void) +{ + check_ptrace(); + check_sigio(); + check_devanon(); +} + diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c index 919d19f11537..5461a065bbb9 100644 --- a/arch/um/os-Linux/tt.c +++ b/arch/um/os-Linux/tt.c @@ -110,6 +110,16 @@ int wait_for_stop(int pid, int sig, int cont_type, void *relay) } } +void forward_ipi(int fd, int pid) +{ + int err; + + err = os_set_owner(fd, pid); + if(err < 0) + printk("forward_ipi: set_owner failed, fd = %d, me = %d, " + "target = %d, err = %d\n", fd, os_getpid(), pid, -err); +} + /* *------------------------- * only for tt mode (will be deleted in future...) diff --git a/arch/um/kernel/tty_log.c b/arch/um/os-Linux/tty_log.c index 9ada656f68ce..c6ba56c1560f 100644 --- a/arch/um/kernel/tty_log.c +++ b/arch/um/os-Linux/tty_log.c @@ -1,5 +1,5 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) and +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) and * geoffrey hing <ghing@net.ohio-state.edu> * Licensed under the GPL */ @@ -58,7 +58,7 @@ int open_tty_log(void *tty, void *current_tty) return(tty_log_fd); } - sprintf(buf, "%s/%0u-%0u", tty_log_dir, (unsigned int) tv.tv_sec, + sprintf(buf, "%s/%0u-%0u", tty_log_dir, (unsigned int) tv.tv_sec, (unsigned int) tv.tv_usec); fd = os_open_file(buf, of_append(of_create(of_rdwr(OPENFLAGS()))), @@ -216,15 +216,3 @@ __uml_setup("tty_log_fd=", set_tty_log_fd, " tty data will be written. Preconfigure the descriptor with something\n" " like '10>tty_log tty_log_fd=10'.\n\n" ); - - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/os-Linux/umid.c b/arch/um/os-Linux/umid.c index ecf107ae5ac8..198e59163288 100644 --- a/arch/um/os-Linux/umid.c +++ b/arch/um/os-Linux/umid.c @@ -143,8 +143,10 @@ static int not_dead_yet(char *dir) goto out_close; } - if((kill(p, 0) == 0) || (errno != ESRCH)) + if((kill(p, 0) == 0) || (errno != ESRCH)){ + printk("umid \"%s\" is already in use by pid %d\n", umid, p); return 1; + } err = actually_do_remove(dir); if(err) @@ -234,33 +236,44 @@ int __init make_umid(void) err = mkdir(tmp, 0777); if(err < 0){ err = -errno; - if(errno != EEXIST) + if(err != -EEXIST) goto err; - if(not_dead_yet(tmp) < 0) + /* 1 -> this umid is already in use + * < 0 -> we couldn't remove the umid directory + * In either case, we can't use this umid, so return -EEXIST. + */ + if(not_dead_yet(tmp) != 0) goto err; err = mkdir(tmp, 0777); } - if(err < 0){ - printk("Failed to create '%s' - err = %d\n", umid, err); - goto err_rmdir; + if(err){ + err = -errno; + printk("Failed to create '%s' - err = %d\n", umid, -errno); + goto err; } umid_setup = 1; create_pid_file(); - return 0; - - err_rmdir: - rmdir(tmp); + err = 0; err: return err; } static int __init make_umid_init(void) { + if(!make_umid()) + return 0; + + /* If initializing with the given umid failed, then try again with + * a random one. + */ + printk("Failed to initialize umid \"%s\", trying with a random umid\n", + umid); + *umid = '\0'; make_umid(); return 0; diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c index e839ce65ad28..8032a105949a 100644 --- a/arch/um/sys-i386/ptrace.c +++ b/arch/um/sys-i386/ptrace.c @@ -6,6 +6,7 @@ #include <linux/config.h> #include <linux/compiler.h> #include "linux/sched.h" +#include "linux/mm.h" #include "asm/elf.h" #include "asm/ptrace.h" #include "asm/uaccess.h" @@ -26,9 +27,17 @@ int is_syscall(unsigned long addr) n = copy_from_user(&instr, (void __user *) addr, sizeof(instr)); if(n){ - printk("is_syscall : failed to read instruction from 0x%lx\n", - addr); - return(0); + /* access_process_vm() grants access to vsyscall and stub, + * while copy_from_user doesn't. Maybe access_process_vm is + * slow, but that doesn't matter, since it will be called only + * in case of singlestepping, if copy_from_user failed. + */ + n = access_process_vm(current, addr, &instr, sizeof(instr), 0); + if(n != sizeof(instr)) { + printk("is_syscall : failed to read instruction from " + "0x%lx\n", addr); + return(1); + } } /* int 0x80 or sysenter */ return((instr == 0x80cd) || (instr == 0x340f)); diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c index 7cd1a82dc8c2..33a40f5ef0d2 100644 --- a/arch/um/sys-i386/signal.c +++ b/arch/um/sys-i386/signal.c @@ -58,7 +58,7 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, } int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, - struct pt_regs *regs) + struct pt_regs *regs, unsigned long sp) { struct sigcontext sc; unsigned long fpregs[HOST_FP_SIZE]; @@ -72,7 +72,7 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, sc.edi = REGS_EDI(regs->regs.skas.regs); sc.esi = REGS_ESI(regs->regs.skas.regs); sc.ebp = REGS_EBP(regs->regs.skas.regs); - sc.esp = REGS_SP(regs->regs.skas.regs); + sc.esp = sp; sc.ebx = REGS_EBX(regs->regs.skas.regs); sc.edx = REGS_EDX(regs->regs.skas.regs); sc.ecx = REGS_ECX(regs->regs.skas.regs); @@ -132,7 +132,7 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from, } int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp, - struct sigcontext *from, int fpsize) + struct sigcontext *from, int fpsize, unsigned long sp) { struct _fpstate *to_fp, *from_fp; int err; @@ -140,11 +140,18 @@ int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp, to_fp = (fp ? fp : (struct _fpstate *) (to + 1)); from_fp = from->fpstate; err = copy_to_user(to, from, sizeof(*to)); + + /* The SP in the sigcontext is the updated one for the signal + * delivery. The sp passed in is the original, and this needs + * to be restored, so we stick it in separately. + */ + err |= copy_to_user(&SC_SP(to), sp, sizeof(sp)); + if(from_fp != NULL){ err |= copy_to_user(&to->fpstate, &to_fp, sizeof(to->fpstate)); err |= copy_to_user(to_fp, from_fp, fpsize); } - return(err); + return err; } #endif @@ -159,11 +166,11 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from) } static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp, - struct pt_regs *from) + struct pt_regs *from, unsigned long sp) { return(CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs), - sizeof(*fp)), - copy_sc_to_user_skas(to, fp, from))); + sizeof(*fp), sp), + copy_sc_to_user_skas(to, fp, from, sp))); } static int copy_ucontext_to_user(struct ucontext *uc, struct _fpstate *fp, @@ -174,7 +181,7 @@ static int copy_ucontext_to_user(struct ucontext *uc, struct _fpstate *fp, err |= put_user(current->sas_ss_sp, &uc->uc_stack.ss_sp); err |= put_user(sas_ss_flags(sp), &uc->uc_stack.ss_flags); err |= put_user(current->sas_ss_size, &uc->uc_stack.ss_size); - err |= copy_sc_to_user(&uc->uc_mcontext, fp, ¤t->thread.regs); + err |= copy_sc_to_user(&uc->uc_mcontext, fp, ¤t->thread.regs, sp); err |= copy_to_user(&uc->uc_sigmask, set, sizeof(*set)); return(err); } @@ -207,6 +214,7 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig, { struct sigframe __user *frame; void *restorer; + unsigned long save_sp = PT_REGS_SP(regs); int err = 0; stack_top &= -8UL; @@ -218,9 +226,19 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig, if(ka->sa.sa_flags & SA_RESTORER) restorer = ka->sa.sa_restorer; + /* Update SP now because the page fault handler refuses to extend + * the stack if the faulting address is too far below the current + * SP, which frame now certainly is. If there's an error, the original + * value is restored on the way out. + * When writing the sigcontext to the stack, we have to write the + * original value, so that's passed to copy_sc_to_user, which does + * the right thing with it. + */ + PT_REGS_SP(regs) = (unsigned long) frame; + err |= __put_user(restorer, &frame->pretcode); err |= __put_user(sig, &frame->sig); - err |= copy_sc_to_user(&frame->sc, NULL, regs); + err |= copy_sc_to_user(&frame->sc, NULL, regs, save_sp); err |= __put_user(mask->sig[0], &frame->sc.oldmask); if (_NSIG_WORDS > 1) err |= __copy_to_user(&frame->extramask, &mask->sig[1], @@ -238,7 +256,7 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig, err |= __put_user(0x80cd, (short __user *)(frame->retcode+6)); if(err) - return(err); + goto err; PT_REGS_SP(regs) = (unsigned long) frame; PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler; @@ -248,7 +266,11 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig, if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED)) ptrace_notify(SIGTRAP); - return(0); + return 0; + +err: + PT_REGS_SP(regs) = save_sp; + return err; } int setup_signal_stack_si(unsigned long stack_top, int sig, @@ -257,6 +279,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, { struct rt_sigframe __user *frame; void *restorer; + unsigned long save_sp = PT_REGS_SP(regs); int err = 0; stack_top &= -8UL; @@ -268,13 +291,16 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, if(ka->sa.sa_flags & SA_RESTORER) restorer = ka->sa.sa_restorer; + /* See comment above about why this is here */ + PT_REGS_SP(regs) = (unsigned long) frame; + err |= __put_user(restorer, &frame->pretcode); err |= __put_user(sig, &frame->sig); err |= __put_user(&frame->info, &frame->pinfo); err |= __put_user(&frame->uc, &frame->puc); err |= copy_siginfo_to_user(&frame->info, info); err |= copy_ucontext_to_user(&frame->uc, &frame->fpstate, mask, - PT_REGS_SP(regs)); + save_sp); /* * This is movl $,%eax ; int $0x80 @@ -288,9 +314,8 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, err |= __put_user(0x80cd, (short __user *)(frame->retcode+5)); if(err) - return(err); + goto err; - PT_REGS_SP(regs) = (unsigned long) frame; PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler; PT_REGS_EAX(regs) = (unsigned long) sig; PT_REGS_EDX(regs) = (unsigned long) &frame->info; @@ -298,7 +323,11 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED)) ptrace_notify(SIGTRAP); - return(0); + return 0; + +err: + PT_REGS_SP(regs) = save_sp; + return err; } long sys_sigreturn(struct pt_regs regs) diff --git a/arch/um/sys-i386/user-offsets.c b/arch/um/sys-i386/user-offsets.c index 26b68675053d..6f4ef2b7fa4a 100644 --- a/arch/um/sys-i386/user-offsets.c +++ b/arch/um/sys-i386/user-offsets.c @@ -3,12 +3,13 @@ #include <asm/ptrace.h> #include <asm/user.h> #include <linux/stddef.h> +#include <sys/poll.h> #define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) #define DEFINE_LONGS(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) + asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long))) #define OFFSET(sym, str, mem) \ DEFINE(sym, offsetof(struct str, mem)); @@ -67,4 +68,9 @@ void foo(void) DEFINE(HOST_ES, ES); DEFINE(HOST_GS, GS); DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); + + /* XXX Duplicated between i386 and x86_64 */ + DEFINE(UM_POLLIN, POLLIN); + DEFINE(UM_POLLPRI, POLLPRI); + DEFINE(UM_POLLOUT, POLLOUT); } diff --git a/arch/um/sys-x86_64/ptrace.c b/arch/um/sys-x86_64/ptrace.c index 74eee5c7c6dd..147bbf05cbc2 100644 --- a/arch/um/sys-x86_64/ptrace.c +++ b/arch/um/sys-x86_64/ptrace.c @@ -8,6 +8,7 @@ #include <asm/ptrace.h> #include <linux/sched.h> #include <linux/errno.h> +#include <linux/mm.h> #include <asm/uaccess.h> #include <asm/elf.h> @@ -136,9 +137,28 @@ void arch_switch(void) */ } +/* XXX Mostly copied from sys-i386 */ int is_syscall(unsigned long addr) { - panic("is_syscall"); + unsigned short instr; + int n; + + n = copy_from_user(&instr, (void __user *) addr, sizeof(instr)); + if(n){ + /* access_process_vm() grants access to vsyscall and stub, + * while copy_from_user doesn't. Maybe access_process_vm is + * slow, but that doesn't matter, since it will be called only + * in case of singlestepping, if copy_from_user failed. + */ + n = access_process_vm(current, addr, &instr, sizeof(instr), 0); + if(n != sizeof(instr)) { + printk("is_syscall : failed to read instruction from " + "0x%lx\n", addr); + return(1); + } + } + /* sysenter */ + return(instr == 0x050f); } int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu ) diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index fe1d065332b1..e75c4e1838b0 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -55,7 +55,8 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, } int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, - struct pt_regs *regs, unsigned long mask) + struct pt_regs *regs, unsigned long mask, + unsigned long sp) { struct faultinfo * fi = ¤t->thread.arch.faultinfo; int err = 0; @@ -70,7 +71,11 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, err |= PUTREG(regs, RDI, to, rdi); err |= PUTREG(regs, RSI, to, rsi); err |= PUTREG(regs, RBP, to, rbp); - err |= PUTREG(regs, RSP, to, rsp); + /* Must use orignal RSP, which is passed in, rather than what's in + * the pt_regs, because that's already been updated to point at the + * signal frame. + */ + err |= __put_user(sp, &to->rsp); err |= PUTREG(regs, RBX, to, rbx); err |= PUTREG(regs, RDX, to, rdx); err |= PUTREG(regs, RCX, to, rcx); @@ -102,7 +107,7 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, #ifdef CONFIG_MODE_TT int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from, - int fpsize) + int fpsize) { struct _fpstate *to_fp, *from_fp; unsigned long sigs; @@ -120,7 +125,7 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from, } int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp, - struct sigcontext *from, int fpsize) + struct sigcontext *from, int fpsize, unsigned long sp) { struct _fpstate *to_fp, *from_fp; int err; @@ -128,11 +133,17 @@ int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp, to_fp = (fp ? fp : (struct _fpstate *) (to + 1)); from_fp = from->fpstate; err = copy_to_user(to, from, sizeof(*to)); + /* The SP in the sigcontext is the updated one for the signal + * delivery. The sp passed in is the original, and this needs + * to be restored, so we stick it in separately. + */ + err |= copy_to_user(&SC_SP(to), sp, sizeof(sp)); + if(from_fp != NULL){ err |= copy_to_user(&to->fpstate, &to_fp, sizeof(to->fpstate)); err |= copy_to_user(to_fp, from_fp, fpsize); } - return(err); + return err; } #endif @@ -148,11 +159,12 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from) } static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp, - struct pt_regs *from, unsigned long mask) + struct pt_regs *from, unsigned long mask, + unsigned long sp) { return(CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs), - sizeof(*fp)), - copy_sc_to_user_skas(to, fp, from, mask))); + sizeof(*fp), sp), + copy_sc_to_user_skas(to, fp, from, mask, sp))); } struct rt_sigframe @@ -170,6 +182,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, { struct rt_sigframe __user *frame; struct _fpstate __user *fp = NULL; + unsigned long save_sp = PT_REGS_RSP(regs); int err = 0; struct task_struct *me = current; @@ -193,14 +206,25 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, goto out; } + /* Update SP now because the page fault handler refuses to extend + * the stack if the faulting address is too far below the current + * SP, which frame now certainly is. If there's an error, the original + * value is restored on the way out. + * When writing the sigcontext to the stack, we have to write the + * original value, so that's passed to copy_sc_to_user, which does + * the right thing with it. + */ + PT_REGS_RSP(regs) = (unsigned long) frame; + /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_link); err |= __put_user(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(PT_REGS_SP(regs)), + err |= __put_user(sas_ss_flags(save_sp), &frame->uc.uc_stack.ss_flags); err |= __put_user(me->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= copy_sc_to_user(&frame->uc.uc_mcontext, fp, regs, set->sig[0]); + err |= copy_sc_to_user(&frame->uc.uc_mcontext, fp, regs, set->sig[0], + save_sp); err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate); if (sizeof(*set) == 16) { __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); @@ -217,10 +241,10 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, err |= __put_user(ka->sa.sa_restorer, &frame->pretcode); else /* could use a vstub here */ - goto out; + goto restore_sp; if (err) - goto out; + goto restore_sp; /* Set up registers for signal handler */ { @@ -238,10 +262,12 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, PT_REGS_RSI(regs) = (unsigned long) &frame->info; PT_REGS_RDX(regs) = (unsigned long) &frame->uc; PT_REGS_RIP(regs) = (unsigned long) ka->sa.sa_handler; - - PT_REGS_RSP(regs) = (unsigned long) frame; out: - return(err); + return err; + +restore_sp: + PT_REGS_RSP(regs) = save_sp; + return err; } long sys_rt_sigreturn(struct pt_regs *regs) diff --git a/arch/um/sys-x86_64/user-offsets.c b/arch/um/sys-x86_64/user-offsets.c index 7bd54a921cf7..899cebb57c3f 100644 --- a/arch/um/sys-x86_64/user-offsets.c +++ b/arch/um/sys-x86_64/user-offsets.c @@ -1,6 +1,7 @@ #include <stdio.h> #include <stddef.h> #include <signal.h> +#include <sys/poll.h> #define __FRAME_OFFSETS #include <asm/ptrace.h> #include <asm/types.h> @@ -88,4 +89,9 @@ void foo(void) DEFINE_LONGS(HOST_IP, RIP); DEFINE_LONGS(HOST_SP, RSP); DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct)); + + /* XXX Duplicated between i386 and x86_64 */ + DEFINE(UM_POLLIN, POLLIN); + DEFINE(UM_POLLPRI, POLLPRI); + DEFINE(UM_POLLOUT, POLLOUT); } diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 45efe0ca88f8..4310b4a311a5 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -250,6 +250,15 @@ config SCHED_SMT cost of slightly increased overhead in some places. If unsure say N here. +config SCHED_MC + bool "Multi-core scheduler support" + depends on SMP + default y + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. If unsure say N here. + source "kernel/Kconfig.preempt" config NUMA @@ -325,6 +334,10 @@ config HAVE_ARCH_EARLY_PFN_TO_NID def_bool y depends on NUMA +config OUT_OF_LINE_PFN_TO_PAGE + def_bool y + depends on DISCONTIGMEM + config NR_CPUS int "Maximum number of CPUs (2-256)" range 2 255 diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 7549a4389fbf..35b2faccdc6c 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S @@ -688,6 +688,8 @@ ia32_sys_call_table: .quad sys_ni_syscall /* pselect6 for now */ .quad sys_ni_syscall /* ppoll for now */ .quad sys_unshare /* 310 */ + .quad compat_sys_set_robust_list + .quad compat_sys_get_robust_list ia32_syscall_end: .rept IA32_NR_syscalls-(ia32_syscall_end-ia32_sys_call_table)/8 .quad ni_syscall diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 0370720515f1..70dd8e5c6889 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -66,24 +66,17 @@ EXPORT_SYMBOL(boot_option_idle_override); void (*pm_idle)(void); static DEFINE_PER_CPU(unsigned int, cpu_idle_state); -static struct notifier_block *idle_notifier; -static DEFINE_SPINLOCK(idle_notifier_lock); +static ATOMIC_NOTIFIER_HEAD(idle_notifier); void idle_notifier_register(struct notifier_block *n) { - unsigned long flags; - spin_lock_irqsave(&idle_notifier_lock, flags); - notifier_chain_register(&idle_notifier, n); - spin_unlock_irqrestore(&idle_notifier_lock, flags); + atomic_notifier_chain_register(&idle_notifier, n); } EXPORT_SYMBOL_GPL(idle_notifier_register); void idle_notifier_unregister(struct notifier_block *n) { - unsigned long flags; - spin_lock_irqsave(&idle_notifier_lock, flags); - notifier_chain_unregister(&idle_notifier, n); - spin_unlock_irqrestore(&idle_notifier_lock, flags); + atomic_notifier_chain_unregister(&idle_notifier, n); } EXPORT_SYMBOL(idle_notifier_unregister); @@ -93,13 +86,13 @@ static DEFINE_PER_CPU(enum idle_state, idle_state) = CPU_NOT_IDLE; void enter_idle(void) { __get_cpu_var(idle_state) = CPU_IDLE; - notifier_call_chain(&idle_notifier, IDLE_START, NULL); + atomic_notifier_call_chain(&idle_notifier, IDLE_START, NULL); } static void __exit_idle(void) { __get_cpu_var(idle_state) = CPU_NOT_IDLE; - notifier_call_chain(&idle_notifier, IDLE_END, NULL); + atomic_notifier_call_chain(&idle_notifier, IDLE_END, NULL); } /* Called from interrupts to signify idle end */ diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index a57eec8311a7..d1f3e9272c05 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -962,7 +962,6 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c) cpuid(1, &eax, &ebx, &ecx, &edx); - c->apicid = phys_pkg_id(0); if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY)) return; @@ -1171,6 +1170,8 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) c->x86_capability[2] = cpuid_edx(0x80860001); } + c->apicid = phys_pkg_id(0); + /* * Vendor-specific initialization. In this section we * canonicalize the feature flags, meaning if there are diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 66e98659d077..ea48fa638070 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -68,6 +68,9 @@ u8 phys_proc_id[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID }; /* core ID of each logical CPU */ u8 cpu_core_id[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = BAD_APICID }; +/* Last level cache ID of each logical CPU */ +u8 cpu_llc_id[NR_CPUS] __cpuinitdata = {[0 ... NR_CPUS-1] = BAD_APICID}; + /* Bitmask of currently online CPUs */ cpumask_t cpu_online_map __read_mostly; @@ -445,6 +448,18 @@ void __cpuinit smp_callin(void) cpu_set(cpuid, cpu_callin_map); } +/* maps the cpu to the sched domain representing multi-core */ +cpumask_t cpu_coregroup_map(int cpu) +{ + struct cpuinfo_x86 *c = cpu_data + cpu; + /* + * For perf, we return last level cache shared map. + * TBD: when power saving sched policy is added, we will return + * cpu_core_map when power saving policy is enabled + */ + return c->llc_shared_map; +} + /* representing cpus for which sibling maps can be computed */ static cpumask_t cpu_sibling_setup_map; @@ -463,12 +478,16 @@ static inline void set_cpu_sibling_map(int cpu) cpu_set(cpu, cpu_sibling_map[i]); cpu_set(i, cpu_core_map[cpu]); cpu_set(cpu, cpu_core_map[i]); + cpu_set(i, c[cpu].llc_shared_map); + cpu_set(cpu, c[i].llc_shared_map); } } } else { cpu_set(cpu, cpu_sibling_map[cpu]); } + cpu_set(cpu, c[cpu].llc_shared_map); + if (current_cpu_data.x86_max_cores == 1) { cpu_core_map[cpu] = cpu_sibling_map[cpu]; c[cpu].booted_cores = 1; @@ -476,6 +495,11 @@ static inline void set_cpu_sibling_map(int cpu) } for_each_cpu_mask(i, cpu_sibling_setup_map) { + if (cpu_llc_id[cpu] != BAD_APICID && + cpu_llc_id[cpu] == cpu_llc_id[i]) { + cpu_set(i, c[cpu].llc_shared_map); + cpu_set(cpu, c[i].llc_shared_map); + } if (phys_proc_id[cpu] == phys_proc_id[i]) { cpu_set(i, cpu_core_map[cpu]); cpu_set(cpu, cpu_core_map[i]); diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 7f58fa682491..473b514b66e4 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c @@ -504,42 +504,25 @@ unsigned long long sched_clock(void) static unsigned long get_cmos_time(void) { - unsigned int timeout = 1000000, year, mon, day, hour, min, sec; - unsigned char uip = 0, this = 0; + unsigned int year, mon, day, hour, min, sec; unsigned long flags; unsigned extyear = 0; -/* - * The Linux interpretation of the CMOS clock register contents: When the - * Update-In-Progress (UIP) flag goes from 1 to 0, the RTC registers show the - * second which has precisely just started. Waiting for this can take up to 1 - * second, we timeout approximately after 2.4 seconds on a machine with - * standard 8.3 MHz ISA bus. - */ - spin_lock_irqsave(&rtc_lock, flags); - while (timeout && (!uip || this)) { - uip |= this; - this = CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP; - timeout--; - } - - /* - * Here we are safe to assume the registers won't change for a whole - * second, so we just go ahead and read them. - */ - sec = CMOS_READ(RTC_SECONDS); - min = CMOS_READ(RTC_MINUTES); - hour = CMOS_READ(RTC_HOURS); - day = CMOS_READ(RTC_DAY_OF_MONTH); - mon = CMOS_READ(RTC_MONTH); - year = CMOS_READ(RTC_YEAR); - + do { + sec = CMOS_READ(RTC_SECONDS); + min = CMOS_READ(RTC_MINUTES); + hour = CMOS_READ(RTC_HOURS); + day = CMOS_READ(RTC_DAY_OF_MONTH); + mon = CMOS_READ(RTC_MONTH); + year = CMOS_READ(RTC_YEAR); #ifdef CONFIG_ACPI - if (acpi_fadt.revision >= FADT2_REVISION_ID && acpi_fadt.century) - extyear = CMOS_READ(acpi_fadt.century); + if (acpi_fadt.revision >= FADT2_REVISION_ID && + acpi_fadt.century) + extyear = CMOS_READ(acpi_fadt.century); #endif + } while (sec != CMOS_READ(RTC_SECONDS)); spin_unlock_irqrestore(&rtc_lock, flags); diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 7b148309c529..edaa9fe654dc 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -69,20 +69,20 @@ asmlinkage void alignment_check(void); asmlinkage void machine_check(void); asmlinkage void spurious_interrupt_bug(void); -struct notifier_block *die_chain; -static DEFINE_SPINLOCK(die_notifier_lock); +ATOMIC_NOTIFIER_HEAD(die_chain); int register_die_notifier(struct notifier_block *nb) { - int err = 0; - unsigned long flags; - vmalloc_sync_all(); - spin_lock_irqsave(&die_notifier_lock, flags); - err = notifier_chain_register(&die_chain, nb); - spin_unlock_irqrestore(&die_notifier_lock, flags); - return err; + return atomic_notifier_chain_register(&die_chain, nb); +} +EXPORT_SYMBOL(register_die_notifier); + +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&die_chain, nb); } +EXPORT_SYMBOL(unregister_die_notifier); static inline void conditional_sti(struct pt_regs *regs) { diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index b04415625442..e5f7f1c34462 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -72,7 +72,7 @@ void show_mem(void) show_free_areas(); printk(KERN_INFO "Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); - for_each_pgdat(pgdat) { + for_each_online_pgdat(pgdat) { for (i = 0; i < pgdat->node_spanned_pages; ++i) { page = pfn_to_page(pgdat->node_start_pfn + i); total++; diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 63c72641b737..4be82d6e2b48 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -377,21 +377,6 @@ EXPORT_SYMBOL(node_data); * Should do that. */ -/* Requires pfn_valid(pfn) to be true */ -struct page *pfn_to_page(unsigned long pfn) -{ - int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT); - return (pfn - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map; -} -EXPORT_SYMBOL(pfn_to_page); - -unsigned long page_to_pfn(struct page *page) -{ - return (long)(((page) - page_zone(page)->zone_mem_map) + - page_zone(page)->zone_start_pfn); -} -EXPORT_SYMBOL(page_to_pfn); - int pfn_valid(unsigned long pfn) { unsigned nid; diff --git a/arch/xtensa/platform-iss/setup.c b/arch/xtensa/platform-iss/setup.c index 2e6dcbf0cc04..23790a5610e2 100644 --- a/arch/xtensa/platform-iss/setup.c +++ b/arch/xtensa/platform-iss/setup.c @@ -108,5 +108,5 @@ static struct notifier_block iss_panic_block = { void __init platform_setup(char **p_cmdline) { - notifier_chain_register(&panic_notifier_list, &iss_panic_block); + atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block); } |