diff options
Diffstat (limited to 'arch/sparc64')
34 files changed, 493 insertions, 235 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index b627f8dbcaa..d41f66ac7ff 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -26,6 +26,14 @@ config MMU bool default y +config STACKTRACE_SUPPORT + bool + default y + +config LOCKDEP_SUPPORT + bool + default y + config TIME_INTERPOLATION bool default y @@ -34,6 +42,14 @@ config ARCH_MAY_HAVE_PC_FDC bool default y +config ARCH_HAS_ILOG2_U32 + bool + default n + +config ARCH_HAS_ILOG2_U64 + bool + default n + config AUDIT_ARCH bool default y diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug index afe0a7720a2..1f130f3b6c2 100644 --- a/arch/sparc64/Kconfig.debug +++ b/arch/sparc64/Kconfig.debug @@ -1,5 +1,9 @@ menu "Kernel hacking" +config TRACE_IRQFLAGS_SUPPORT + bool + default y + source "lib/Kconfig.debug" config DEBUG_STACK_USAGE diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 2f4612fa81f..5a9e68b13e6 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig @@ -1,24 +1,29 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.19-rc2 -# Tue Oct 17 19:29:20 2006 +# Linux kernel version: 2.6.20-rc2 +# Thu Dec 28 15:09:49 2006 # CONFIG_SPARC=y CONFIG_SPARC64=y CONFIG_64BIT=y CONFIG_MMU=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y CONFIG_TIME_INTERPOLATION=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y +# CONFIG_ARCH_HAS_ILOG2_U32 is not set +# CONFIG_ARCH_HAS_ILOG2_U64 is not set CONFIG_AUDIT_ARCH=y CONFIG_SPARC64_PAGE_SIZE_8KB=y # CONFIG_SPARC64_PAGE_SIZE_64KB is not set # CONFIG_SPARC64_PAGE_SIZE_512KB is not set # CONFIG_SPARC64_PAGE_SIZE_4MB is not set CONFIG_SECCOMP=y -# CONFIG_HZ_100 is not set -CONFIG_HZ_250=y +CONFIG_HZ_100=y +# CONFIG_HZ_250 is not set +# CONFIG_HZ_300 is not set # CONFIG_HZ_1000 is not set -CONFIG_HZ=250 +CONFIG_HZ=100 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -42,13 +47,14 @@ CONFIG_POSIX_MQUEUE=y # CONFIG_UTS_NS is not set # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y CONFIG_RELAY=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y # CONFIG_EMBEDDED is not set CONFIG_UID16=y -# CONFIG_SYSCTL_SYSCALL is not set +CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set @@ -203,6 +209,7 @@ CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set CONFIG_IPV6=m CONFIG_IPV6_PRIVACY=y CONFIG_IPV6_ROUTER_PREF=y @@ -219,7 +226,6 @@ CONFIG_INET6_XFRM_MODE_BEET=m # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set CONFIG_IPV6_SIT=m CONFIG_IPV6_TUNNEL=m -# CONFIG_IPV6_SUBTREES is not set # CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set @@ -238,6 +244,8 @@ CONFIG_IP_DCCP_CCID2=m # CONFIG_IP_DCCP_CCID2_DEBUG is not set CONFIG_IP_DCCP_CCID3=m CONFIG_IP_DCCP_TFRC_LIB=m +# CONFIG_IP_DCCP_CCID3_DEBUG is not set +CONFIG_IP_DCCP_CCID3_RTO=100 # # DCCP Kernel Hacking @@ -326,7 +334,7 @@ CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_CRYPTOLOOP=m CONFIG_BLK_DEV_NBD=m # CONFIG_BLK_DEV_SX8 is not set -CONFIG_BLK_DEV_UB=m +# CONFIG_BLK_DEV_UB is not set # CONFIG_BLK_DEV_RAM is not set # CONFIG_BLK_DEV_INITRD is not set CONFIG_CDROM_PKTCDVD=m @@ -405,6 +413,7 @@ CONFIG_IDEDMA_AUTO=y # CONFIG_RAID_ATTRS=m CONFIG_SCSI=y +# CONFIG_SCSI_TGT is not set CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y @@ -425,6 +434,7 @@ CONFIG_CHR_DEV_SG=m CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set # # SCSI Transports @@ -468,6 +478,7 @@ CONFIG_ISCSI_TCP=m # CONFIG_SCSI_DC390T is not set # CONFIG_SCSI_DEBUG is not set # CONFIG_SCSI_SUNESP is not set +# CONFIG_SCSI_SRP is not set # # Serial ATA (prod) and Parallel ATA (experimental) drivers @@ -598,6 +609,7 @@ CONFIG_BNX2=m # CONFIG_IXGB is not set # CONFIG_S2IO is not set # CONFIG_MYRI10GE is not set +# CONFIG_NETXEN_NIC is not set # # Token Ring devices @@ -724,10 +736,6 @@ CONFIG_RTC=y # 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 @@ -832,6 +840,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_LM92 is not set # CONFIG_SENSORS_MAX1619 is not set # CONFIG_SENSORS_PC87360 is not set +# CONFIG_SENSORS_PC87427 is not set # CONFIG_SENSORS_SIS5595 is not set # CONFIG_SENSORS_SMSC47M1 is not set # CONFIG_SENSORS_SMSC47M192 is not set @@ -842,6 +851,7 @@ CONFIG_HWMON=y # CONFIG_SENSORS_W83781D is not set # CONFIG_SENSORS_W83791D is not set # CONFIG_SENSORS_W83792D is not set +# CONFIG_SENSORS_W83793 is not set # CONFIG_SENSORS_W83L785TS is not set # CONFIG_SENSORS_W83627HF is not set # CONFIG_SENSORS_W83627EHF is not set @@ -954,7 +964,6 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_MPU401_UART=m CONFIG_SND_AC97_CODEC=m -CONFIG_SND_AC97_BUS=m CONFIG_SND_DUMMY=m CONFIG_SND_VIRMIDI=m CONFIG_SND_MTPAV=m @@ -1037,6 +1046,12 @@ CONFIG_SND_SUN_CS4231=m # Open Sound System # # CONFIG_SOUND_PRIME is not set +CONFIG_AC97_BUS=m + +# +# HID Devices +# +CONFIG_HID=y # # USB support @@ -1053,6 +1068,7 @@ CONFIG_USB=y CONFIG_USB_DEVICEFS=y # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_MULTITHREAD_PROBE is not set # CONFIG_USB_OTG is not set # @@ -1082,14 +1098,25 @@ CONFIG_USB_UHCI_HCD=m # # may also be needed; see USB_STORAGE Help for more information # -# CONFIG_USB_STORAGE is not set +CONFIG_USB_STORAGE=m +# 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_STORAGE_ONETOUCH is not set +# CONFIG_USB_STORAGE_KARMA is not set # CONFIG_USB_LIBUSUAL is not set # # USB Input Devices # CONFIG_USB_HID=y -CONFIG_USB_HIDINPUT=y # CONFIG_USB_HIDINPUT_POWERBOOK is not set # CONFIG_HID_FF is not set CONFIG_USB_HIDDEV=y @@ -1119,6 +1146,7 @@ CONFIG_USB_HIDDEV=y # CONFIG_USB_KAWETH is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET_MII is not set # CONFIG_USB_USBNET is not set # CONFIG_USB_MON is not set @@ -1208,6 +1236,10 @@ CONFIG_USB_HIDDEV=y # # +# Virtualization +# + +# # Misc Linux/SPARC drivers # CONFIG_SUN_OPENPROMIO=m @@ -1364,6 +1396,11 @@ CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_UTF8 is not set # +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# # Instrumentation Support # CONFIG_PROFILING=y @@ -1373,10 +1410,13 @@ CONFIG_KPROBES=y # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_PRINTK_TIME=y CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_FS=y +# CONFIG_HEADERS_CHECK is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_DETECT_SOFTLOCKUP=y @@ -1387,17 +1427,16 @@ CONFIG_SCHEDSTATS=y # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set # CONFIG_DEBUG_RWSEMS is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set -CONFIG_DEBUG_FS=y # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_LIST is not set -# CONFIG_UNWIND_INFO is not set CONFIG_FORCED_INLINING=y -# CONFIG_HEADERS_CHECK is not set # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_LKDTM is not set # CONFIG_DEBUG_STACK_USAGE is not set @@ -1420,8 +1459,9 @@ CONFIG_CRYPTO=y CONFIG_CRYPTO_ALGAPI=y CONFIG_CRYPTO_BLKCIPHER=y CONFIG_CRYPTO_HASH=y -CONFIG_CRYPTO_MANAGER=m +CONFIG_CRYPTO_MANAGER=y CONFIG_CRYPTO_HMAC=y +CONFIG_CRYPTO_XCBC=y CONFIG_CRYPTO_NULL=m CONFIG_CRYPTO_MD4=y CONFIG_CRYPTO_MD5=y @@ -1430,8 +1470,10 @@ CONFIG_CRYPTO_SHA256=m CONFIG_CRYPTO_SHA512=m CONFIG_CRYPTO_WP512=m CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_GF128MUL=m CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_LRW=m CONFIG_CRYPTO_DES=y CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m @@ -1456,6 +1498,7 @@ CONFIG_CRYPTO_TEST=m # # Library routines # +CONFIG_BITREVERSE=y CONFIG_CRC_CCITT=m CONFIG_CRC16=m CONFIG_CRC32=y @@ -1463,3 +1506,4 @@ CONFIG_LIBCRC32C=m CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y CONFIG_PLIST=y +CONFIG_IOMAP_COPY=y diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile index e1eabebaed3..eff0c01d357 100644 --- a/arch/sparc64/kernel/Makefile +++ b/arch/sparc64/kernel/Makefile @@ -14,6 +14,7 @@ obj-y := process.o setup.o cpu.o idprom.o \ power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o \ visemul.o prom.o of_device.o +obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_PCI) += ebus.o isa.o pci_common.o pci_iommu.o \ pci_psycho.o pci_sabre.o pci_schizo.o \ pci_sun4v.o pci_sun4v_asm.o diff --git a/arch/sparc64/kernel/binfmt_aout32.c b/arch/sparc64/kernel/binfmt_aout32.c index d7caa60a007..f205fc7cbcd 100644 --- a/arch/sparc64/kernel/binfmt_aout32.c +++ b/arch/sparc64/kernel/binfmt_aout32.c @@ -209,7 +209,7 @@ static int load_aout32_binary(struct linux_binprm * bprm, struct pt_regs * regs) if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC && N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) || N_TRSIZE(ex) || N_DRSIZE(ex) || - bprm->file->f_dentry->d_inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) { + bprm->file->f_path.dentry->d_inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) { return -ENOEXEC; } @@ -349,7 +349,7 @@ static int load_aout32_library(struct file *file) int retval; struct exec ex; - inode = file->f_dentry->d_inode; + inode = file->f_path.dentry->d_inode; retval = -ENOEXEC; error = kernel_read(file, 0, (char *) &ex, sizeof(ex)); diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c index a98f3ae175a..9ad84ff10a1 100644 --- a/arch/sparc64/kernel/binfmt_elf32.c +++ b/arch/sparc64/kernel/binfmt_elf32.c @@ -141,7 +141,6 @@ cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value) value->tv_sec = jiffies / HZ; } -#define elf_addr_t u32 #undef start_thread #define start_thread start_thread32 #define init_elf_binfmt init_elf32_binfmt diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c index 259f37e516f..9699abeb990 100644 --- a/arch/sparc64/kernel/chmc.c +++ b/arch/sparc64/kernel/chmc.c @@ -341,7 +341,7 @@ static void fetch_decode_regs(struct mctrl_info *mp) static int init_one_mctrl(struct device_node *dp) { - struct mctrl_info *mp = kmalloc(sizeof(*mp), GFP_KERNEL); + struct mctrl_info *mp = kzalloc(sizeof(*mp), GFP_KERNEL); int portid = of_getintprop_default(dp, "portid", -1); struct linux_prom64_registers *regs; void *pval; @@ -349,7 +349,6 @@ static int init_one_mctrl(struct device_node *dp) if (!mp) return -1; - memset(mp, 0, sizeof(*mp)); if (portid == -1) goto fail; diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 6f28bec0a9b..c15a3edcb82 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -597,7 +597,12 @@ __spitfire_cee_trap_continue: 1: ba,pt %xcc, etrap_irq rd %pc, %g7 -2: mov %l4, %o1 +2: +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif + mov %l4, %o1 mov %l5, %o2 call spitfire_access_error add %sp, PTREGS_OFF, %o0 @@ -824,6 +829,10 @@ do_cheetah_plus_data_parity: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif mov 0x0, %o0 call cheetah_plus_parity_error add %sp, PTREGS_OFF, %o1 @@ -855,6 +864,10 @@ do_cheetah_plus_insn_parity: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif mov 0x1, %o0 call cheetah_plus_parity_error add %sp, PTREGS_OFF, %o1 @@ -1183,6 +1196,10 @@ c_fast_ecc: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif mov %l4, %o1 mov %l5, %o2 call cheetah_fecc_handler @@ -1211,6 +1228,10 @@ c_cee: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif mov %l4, %o1 mov %l5, %o2 call cheetah_cee_handler @@ -1239,6 +1260,10 @@ c_deferred: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif mov %l4, %o1 mov %l5, %o2 call cheetah_deferred_handler diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index c8e9dc9d68a..baea10a9819 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -78,11 +78,7 @@ sparc_ramdisk_image64: /* PROM cif handler code address is in %o4. */ sparc64_boot: -1: rd %pc, %g7 - set 1b, %g1 - cmp %g1, %g7 - be,pn %xcc, sparc64_boot_after_remap - mov %o4, %l7 + mov %o4, %l7 /* We need to remap the kernel. Use position independant * code to remap us to KERNBASE. @@ -295,7 +291,6 @@ is_sun4v: add %sp, (192 + 128), %sp -sparc64_boot_after_remap: sethi %hi(prom_root_compatible), %g1 or %g1, %lo(prom_root_compatible), %g1 sethi %hi(prom_sun4v_name), %g7 @@ -489,6 +484,14 @@ tlb_fixup_done: call __bzero sub %o1, %o0, %o1 +#ifdef CONFIG_LOCKDEP + /* We have this call this super early, as even prom_init can grab + * spinlocks and thus call into the lockdep code. + */ + call lockdep_init + nop +#endif + mov %l6, %o1 ! OpenPROM stack call prom_init mov %l7, %o0 ! OpenPROM cif handler diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index d64b1ea848d..c3d068c7a41 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -372,14 +372,14 @@ static void run_pre_handler(unsigned int virt_irq) } } -static struct hw_interrupt_type sun4u_irq = { +static struct irq_chip sun4u_irq = { .typename = "sun4u", .enable = sun4u_irq_enable, .disable = sun4u_irq_disable, .end = sun4u_irq_end, }; -static struct hw_interrupt_type sun4u_irq_ack = { +static struct irq_chip sun4u_irq_ack = { .typename = "sun4u+ack", .enable = sun4u_irq_enable, .disable = sun4u_irq_disable, @@ -387,14 +387,14 @@ static struct hw_interrupt_type sun4u_irq_ack = { .end = sun4u_irq_end, }; -static struct hw_interrupt_type sun4v_irq = { +static struct irq_chip sun4v_irq = { .typename = "sun4v", .enable = sun4v_irq_enable, .disable = sun4v_irq_disable, .end = sun4v_irq_end, }; -static struct hw_interrupt_type sun4v_irq_ack = { +static struct irq_chip sun4v_irq_ack = { .typename = "sun4v+ack", .enable = sun4v_irq_enable, .disable = sun4v_irq_disable, @@ -493,22 +493,6 @@ out: return bucket->virt_irq; } -void hw_resend_irq(struct hw_interrupt_type *handler, unsigned int virt_irq) -{ - struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq); - unsigned long pstate; - unsigned int *ent; - - __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate)); - __asm__ __volatile__("wrpr %0, %1, %%pstate" - : : "r" (pstate), "i" (PSTATE_IE)); - ent = irq_work(smp_processor_id()); - bucket->irq_chain = *ent; - *ent = __irq(bucket); - set_softint(1 << PIL_DEVICE_IRQ); - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate)); -} - void ack_bad_irq(unsigned int virt_irq) { struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq); diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c index f028e68b23f..98721a8f861 100644 --- a/arch/sparc64/kernel/isa.c +++ b/arch/sparc64/kernel/isa.c @@ -22,14 +22,15 @@ static void __init report_dev(struct sparc_isa_device *isa_dev, int child) printk(" [%s", isa_dev->prom_node->name); } -static struct linux_prom_registers * __init -isa_dev_get_resource(struct sparc_isa_device *isa_dev) +static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev) { struct linux_prom_registers *pregs; unsigned long base, len; int prop_len; pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len); + if (!pregs) + return; /* Only the first one is interesting. */ len = pregs[0].reg_size; @@ -44,12 +45,9 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev) request_resource(&isa_dev->bus->parent->io_space, &isa_dev->resource); - - return pregs; } -static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev, - struct linux_prom_registers *pregs) +static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev) { struct of_device *op = of_find_device_by_node(isa_dev->prom_node); @@ -69,17 +67,14 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) printk(" ->"); while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; - isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL); + isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL); if (!isa_dev) { fatal_err("cannot allocate child isa_dev"); prom_halt(); } - memset(isa_dev, 0, sizeof(*isa_dev)); - /* Link it in to parent. */ isa_dev->next = parent_isa_dev->child; parent_isa_dev->child = isa_dev; @@ -87,8 +82,8 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev) isa_dev->bus = parent_isa_dev->bus; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 1); @@ -101,17 +96,14 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) struct device_node *dp = isa_br->prom_node->child; while (dp) { - struct linux_prom_registers *regs; struct sparc_isa_device *isa_dev; - isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL); + isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL); if (!isa_dev) { printk(KERN_DEBUG "ISA: cannot allocate isa_dev"); return; } - memset(isa_dev, 0, sizeof(*isa_dev)); - isa_dev->ofdev.node = dp; isa_dev->ofdev.dev.parent = &isa_br->ofdev.dev; isa_dev->ofdev.dev.bus = &isa_bus_type; @@ -141,8 +133,8 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br) isa_dev->bus = isa_br; isa_dev->prom_node = dp; - regs = isa_dev_get_resource(isa_dev); - isa_dev_get_irq(isa_dev, regs); + isa_dev_get_resource(isa_dev); + isa_dev_get_irq(isa_dev); report_dev(isa_dev, 0); @@ -180,14 +172,12 @@ void __init isa_init(void) pbm = pdev_cookie->pbm; dp = pdev_cookie->prom_node; - isa_br = kmalloc(sizeof(*isa_br), GFP_KERNEL); + isa_br = kzalloc(sizeof(*isa_br), GFP_KERNEL); if (!isa_br) { printk(KERN_DEBUG "isa: cannot allocate sparc_isa_bridge"); return; } - memset(isa_br, 0, sizeof(*isa_br)); - isa_br->ofdev.node = dp; isa_br->ofdev.dev.parent = &pdev->dev; isa_br->ofdev.dev.bus = &isa_bus_type; diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c index 8e75ed762fd..ae221f0d4a6 100644 --- a/arch/sparc64/kernel/kprobes.c +++ b/arch/sparc64/kernel/kprobes.c @@ -45,7 +45,11 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); int __kprobes arch_prepare_kprobe(struct kprobe *p) { p->ainsn.insn[0] = *p->addr; + flushi(&p->ainsn.insn[0]); + p->ainsn.insn[1] = BREAKPOINT_INSTRUCTION_2; + flushi(&p->ainsn.insn[1]); + p->opcode = *p->addr; return 0; } @@ -185,16 +189,19 @@ no_kprobe: /* If INSN is a relative control transfer instruction, * return the corrected branch destination value. * - * The original INSN location was REAL_PC, it actually - * executed at PC and produced destination address NPC. + * regs->tpc and regs->tnpc still hold the values of the + * program counters at the time of trap due to the execution + * of the BREAKPOINT_INSTRUCTION_2 at p->ainsn.insn[1] + * */ -static unsigned long __kprobes relbranch_fixup(u32 insn, unsigned long real_pc, - unsigned long pc, - unsigned long npc) +static unsigned long __kprobes relbranch_fixup(u32 insn, struct kprobe *p, + struct pt_regs *regs) { + unsigned long real_pc = (unsigned long) p->addr; + /* Branch not taken, no mods necessary. */ - if (npc == pc + 0x4UL) - return real_pc + 0x4UL; + if (regs->tnpc == regs->tpc + 0x4UL) + return real_pc + 0x8UL; /* The three cases are call, branch w/prediction, * and traditional branch. @@ -202,14 +209,21 @@ static unsigned long __kprobes relbranch_fixup(u32 insn, unsigned long real_pc, if ((insn & 0xc0000000) == 0x40000000 || (insn & 0xc1c00000) == 0x00400000 || (insn & 0xc1c00000) == 0x00800000) { + unsigned long ainsn_addr; + + ainsn_addr = (unsigned long) &p->ainsn.insn[0]; + /* The instruction did all the work for us * already, just apply the offset to the correct * instruction location. */ - return (real_pc + (npc - pc)); + return (real_pc + (regs->tnpc - ainsn_addr)); } - return real_pc + 0x4UL; + /* It is jmpl or some other absolute PC modification instruction, + * leave NPC as-is. + */ + return regs->tnpc; } /* If INSN is an instruction which writes it's PC location @@ -220,12 +234,12 @@ static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn, { unsigned long *slot = NULL; - /* Simplest cast is call, which always uses %o7 */ + /* Simplest case is 'call', which always uses %o7 */ if ((insn & 0xc0000000) == 0x40000000) { slot = ®s->u_regs[UREG_I7]; } - /* Jmpl encodes the register inside of the opcode */ + /* 'jmpl' encodes the register inside of the opcode */ if ((insn & 0xc1f80000) == 0x81c00000) { unsigned long rd = ((insn >> 25) & 0x1f); @@ -247,11 +261,11 @@ static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn, /* * Called after single-stepping. p->addr is the address of the - * instruction whose first byte has been replaced by the breakpoint + * instruction which has been replaced by the breakpoint * instruction. To avoid the SMP problems that can occur when we * temporarily put back the original opcode to single-step, we * single-stepped a copy of the instruction. The address of this - * copy is p->ainsn.insn. + * copy is &p->ainsn.insn[0]. * * This function prepares to return from the post-single-step * breakpoint trap. @@ -261,11 +275,11 @@ static void __kprobes resume_execution(struct kprobe *p, { u32 insn = p->ainsn.insn[0]; + regs->tnpc = relbranch_fixup(insn, p, regs); + + /* This assignment must occur after relbranch_fixup() */ regs->tpc = kcb->kprobe_orig_tnpc; - regs->tnpc = relbranch_fixup(insn, - (unsigned long) p->addr, - (unsigned long) &p->ainsn.insn[0], - regs->tnpc); + retpc_fixup(regs, insn, (unsigned long) p->addr); regs->tstate = ((regs->tstate & ~TSTATE_PIL) | @@ -430,17 +444,8 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) struct jprobe *jp = container_of(p, struct jprobe, kp); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - kcb->jprobe_saved_regs_location = regs; memcpy(&(kcb->jprobe_saved_regs), regs, sizeof(*regs)); - /* Save a whole stack frame, this gets arguments - * pushed onto the stack after using up all the - * arg registers. - */ - memcpy(&(kcb->jprobe_saved_stack), - (char *) (regs->u_regs[UREG_FP] + STACK_BIAS), - sizeof(kcb->jprobe_saved_stack)); - regs->tpc = (unsigned long) jp->entry; regs->tnpc = ((unsigned long) jp->entry) + 0x4UL; regs->tstate |= TSTATE_PIL; @@ -450,10 +455,19 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) void __kprobes jprobe_return(void) { - __asm__ __volatile__( - ".globl jprobe_return_trap_instruction\n" + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + register unsigned long orig_fp asm("g1"); + + orig_fp = kcb->jprobe_saved_regs.u_regs[UREG_FP]; + __asm__ __volatile__("\n" +"1: cmp %%sp, %0\n\t" + "blu,a,pt %%xcc, 1b\n\t" + " restore\n\t" + ".globl jprobe_return_trap_instruction\n" "jprobe_return_trap_instruction:\n\t" - "ta 0x70"); + "ta 0x70" + : /* no outputs */ + : "r" (orig_fp)); } extern void jprobe_return_trap_instruction(void); @@ -466,26 +480,7 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); if (addr == (u32 *) jprobe_return_trap_instruction) { - if (kcb->jprobe_saved_regs_location != regs) { - printk("JPROBE: Current regs (%p) does not match " - "saved regs (%p).\n", - regs, kcb->jprobe_saved_regs_location); - printk("JPROBE: Saved registers\n"); - __show_regs(kcb->jprobe_saved_regs_location); - printk("JPROBE: Current registers\n"); - __show_regs(regs); - BUG(); - } - /* Restore old register state. Do pt_regs - * first so that UREG_FP is the original one for - * the stack frame restore. - */ memcpy(regs, &(kcb->jprobe_saved_regs), sizeof(*regs)); - - memcpy((char *) (regs->u_regs[UREG_FP] + STACK_BIAS), - &(kcb->jprobe_saved_stack), - sizeof(kcb->jprobe_saved_stack)); - preempt_enable_no_resched(); return 1; } diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index 8cc14fc6b6f..b0f3e0082a0 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -144,9 +144,12 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned lo } EXPORT_SYMBOL(of_ioremap); -void of_iounmap(void __iomem *base, unsigned long size) +void of_iounmap(struct resource *res, void __iomem *base, unsigned long size) { - release_region((unsigned long) base, size); + if (res->flags & IORESOURCE_MEM) + release_mem_region((unsigned long) base, size); + else + release_region((unsigned long) base, size); } EXPORT_SYMBOL(of_iounmap); @@ -1007,10 +1010,9 @@ struct of_device* of_platform_device_create(struct device_node *np, { struct of_device *dev; - dev = kmalloc(sizeof(*dev), GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return NULL; - memset(dev, 0, sizeof(*dev)); dev->dev.parent = parent; dev->dev.bus = bus; diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index e02f01b644a..dfc41cd4bb5 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -646,13 +646,4 @@ int pci_domain_nr(struct pci_bus *pbus) } EXPORT_SYMBOL(pci_domain_nr); -int pcibios_prep_mwi(struct pci_dev *dev) -{ - /* We set correct PCI_CACHE_LINE_SIZE register values for every - * device probed on this platform. So there is nothing to check - * and this always succeeds. - */ - return 0; -} - #endif /* !(CONFIG_PCI) */ diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 03ad4c06758..6b04794b7a9 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -798,7 +798,7 @@ static struct pci_ops pci_sun4v_ops = { static void pbm_scan_bus(struct pci_controller_info *p, struct pci_pbm_info *pbm) { - struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL); + struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL); if (!cookie) { prom_printf("%s: Critical allocation failure.\n", pbm->name); @@ -806,7 +806,6 @@ static void pbm_scan_bus(struct pci_controller_info *p, } /* All we care about is the PBM. */ - memset(cookie, 0, sizeof(*cookie)); cookie->pbm = pbm; pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, p->pci_ops, pbm); @@ -1048,12 +1047,11 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm) /* Allocate and initialize the free area map. */ sz = num_tsb_entries / 8; sz = (sz + 7UL) & ~7UL; - iommu->arena.map = kmalloc(sz, GFP_KERNEL); + iommu->arena.map = kzalloc(sz, GFP_KERNEL); if (!iommu->arena.map) { prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n"); prom_halt(); } - memset(iommu->arena.map, 0, sz); iommu->arena.limit = num_tsb_entries; sz = probe_existing_entries(pbm, iommu); @@ -1164,24 +1162,20 @@ void sun4v_pci_init(struct device_node *dp, char *model_name) per_cpu(pci_iommu_batch, i).pglist = (u64 *) page; } - p = kmalloc(sizeof(struct pci_controller_info), GFP_ATOMIC); + p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC); if (!p) goto fatal_memory_error; - memset(p, 0, sizeof(*p)); - - iommu = kmalloc(sizeof(struct pci_iommu), GFP_ATOMIC); + iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); if (!iommu) goto fatal_memory_error; - memset(iommu, 0, sizeof(*iommu)); p->pbm_A.iommu = iommu; - iommu = kmalloc(sizeof(struct pci_iommu), GFP_ATOMIC); + iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC); if (!iommu) goto fatal_memory_error; - memset(iommu, 0, sizeof(*iommu)); p->pbm_B.iommu = iommu; p->next = pci_controller_root; diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index d31975e6d6f..81111a12f0a 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -202,7 +202,10 @@ asmlinkage void do_ptrace(struct pt_regs *regs) #endif if (request == PTRACE_TRACEME) { ret = ptrace_traceme(); - pt_succ_return(regs, 0); + if (ret < 0) + pt_error_return(regs, -ret); + else + pt_succ_return(regs, 0); goto out; } diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S index 3522cd66f3b..079d18a11d2 100644 --- a/arch/sparc64/kernel/rtrap.S +++ b/arch/sparc64/kernel/rtrap.S @@ -165,14 +165,26 @@ rtrap: __handle_softirq_continue: rtrap_xcall: sethi %hi(0xf << 20), %l4 - andcc %l1, TSTATE_PRIV, %l3 and %l1, %l4, %l4 + andn %l1, %l4, %l1 + srl %l4, 20, %l4 +#ifdef CONFIG_TRACE_IRQFLAGS + brnz,pn %l4, rtrap_no_irq_enable + nop + call trace_hardirqs_on + nop + wrpr %l4, %pil +rtrap_no_irq_enable: +#endif + andcc %l1, TSTATE_PRIV, %l3 bne,pn %icc, to_kernel - andn %l1, %l4, %l1 + nop /* We must hold IRQs off and atomically test schedule+signal * state, then hold them off all the way back to userspace. - * If we are returning to kernel, none of this matters. + * If we are returning to kernel, none of this matters. Note + * that we are disabling interrupts via PSTATE_IE, not using + * %pil. * * If we do not do this, there is a window where we would do * the tests, later the signal/resched event arrives but we do @@ -256,7 +268,6 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1 ld [%sp + PTREGS_OFF + PT_V9_Y], %o3 wr %o3, %g0, %y - srl %l4, 20, %l4 wrpr %l4, 0x0, %pil wrpr %g0, 0x1, %tl wrpr %l1, %g0, %tstate @@ -374,8 +385,8 @@ to_kernel: ldx [%g6 + TI_FLAGS], %l5 andcc %l5, _TIF_NEED_RESCHED, %g0 be,pt %xcc, kern_fpucheck - srl %l4, 20, %l5 - cmp %l5, 0 + nop + cmp %l4, 0 bne,pn %xcc, kern_fpucheck sethi %hi(PREEMPT_ACTIVE), %l6 stw %l6, [%g6 + TI_PRE_COUNT] diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index cc09d826641..fc99f7b8012 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -1388,7 +1388,7 @@ void __devinit smp_prepare_boot_cpu(void) { } -int __devinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu) { int ret = smp_boot_one_cpu(cpu); @@ -1447,11 +1447,8 @@ void __init setup_per_cpu_areas(void) char *ptr; /* Copy section for each CPU (we discard the original) */ - goal = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES); -#ifdef CONFIG_MODULES - if (goal < PERCPU_ENOUGH_ROOM) - goal = PERCPU_ENOUGH_ROOM; -#endif + goal = PERCPU_ENOUGH_ROOM; + __per_cpu_shift = 0; for (size = 1UL; size < goal; size <<= 1UL) __per_cpu_shift++; diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c new file mode 100644 index 00000000000..c4d15f2762b --- /dev/null +++ b/arch/sparc64/kernel/stacktrace.c @@ -0,0 +1,41 @@ +#include <linux/sched.h> +#include <linux/stacktrace.h> +#include <linux/thread_info.h> +#include <asm/ptrace.h> + +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) +{ + unsigned long ksp, fp, thread_base; + struct thread_info *tp; + + if (!task) + task = current; + tp = task_thread_info(task); + if (task == current) { + flushw_all(); + __asm__ __volatile__( + "mov %%fp, %0" + : "=r" (ksp) + ); + } else + ksp = tp->ksp; + + fp = ksp + STACK_BIAS; + thread_base = (unsigned long) tp; + do { + struct reg_window *rw; + + /* Bogus frame pointer? */ + if (fp < (thread_base + sizeof(struct thread_info)) || + fp >= (thread_base + THREAD_SIZE)) + break; + + rw = (struct reg_window *) fp; + if (trace->skip > 0) + trace->skip--; + else + trace->entries[trace->nr_entries++] = rw->ins[7]; + + fp = rw->ins[6] + STACK_BIAS; + } while (trace->nr_entries < trace->max_entries); +} diff --git a/arch/sparc64/kernel/sun4v_ivec.S b/arch/sparc64/kernel/sun4v_ivec.S index 49703c3c576..405855dd886 100644 --- a/arch/sparc64/kernel/sun4v_ivec.S +++ b/arch/sparc64/kernel/sun4v_ivec.S @@ -190,7 +190,10 @@ sun4v_res_mondo: mov %g1, %g4 ba,pt %xcc, etrap_irq rd %pc, %g7 - +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif /* Log the event. */ add %sp, PTREGS_OFF, %o0 call sun4v_resum_error @@ -216,7 +219,10 @@ sun4v_res_mondo_queue_full: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 - +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif call sun4v_resum_overflow add %sp, PTREGS_OFF, %o0 @@ -295,7 +301,10 @@ sun4v_nonres_mondo: mov %g1, %g4 ba,pt %xcc, etrap_irq rd %pc, %g7 - +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif /* Log the event. */ add %sp, PTREGS_OFF, %o0 call sun4v_nonresum_error @@ -321,7 +330,10 @@ sun4v_nonres_mondo_queue_full: wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq rd %pc, %g7 - +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif call sun4v_nonresum_overflow add %sp, PTREGS_OFF, %o0 diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c index 7da72d3b322..2ebc2c05138 100644 --- a/arch/sparc64/kernel/sys_sunos32.c +++ b/arch/sparc64/kernel/sys_sunos32.c @@ -83,7 +83,7 @@ asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 of file = fget(fd); if (!file) goto out; - inode = file->f_dentry->d_inode; + inode = file->f_path.dentry->d_inode; if (imajor(inode) == MEM_MAJOR && iminor(inode) == 5) { flags |= MAP_ANONYMOUS; fput(file); @@ -615,7 +615,7 @@ sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr) if (!file) return 0; - inode = file->f_dentry->d_inode; + inode = file->f_path.dentry->d_inode; socket = SOCKET_I(inode); local.sin_family = AF_INET; @@ -1055,7 +1055,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4) break; case 2: rval = -EFAULT; - kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, + kmbuf = kmalloc(sizeof(struct msgbuf) + arg3, GFP_KERNEL); if (!kmbuf) break; @@ -1078,7 +1078,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4) break; case 3: rval = -EFAULT; - kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3, + kmbuf = kmalloc(sizeof(struct msgbuf) + arg3, GFP_KERNEL); if (!kmbuf || sunos_msgbuf_get((struct msgbuf32 __user *)(unsigned long)arg2, kmbuf, arg3)) diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index fe1796c939c..ad67784292d 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -10,7 +10,7 @@ */ #include <linux/module.h> -#include <linux/sched.h> /* for jiffies */ +#include <linux/sched.h> #include <linux/kernel.h> #include <linux/kallsyms.h> #include <linux/signal.h> @@ -1873,6 +1873,16 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) put_cpu(); + if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) { + /* If err_type is 0x4, it's a powerdown request. Do + * not do the usual resumable error log because that + * makes it look like some abnormal error. + */ + printk(KERN_INFO "Power down request...\n"); + kill_cad_pid(SIGINT, 1); + return; + } + sun4v_log_error(regs, &local_copy, cpu, KERN_ERR "RESUMABLE ERROR", &sun4v_resum_oflow_cnt); @@ -2261,8 +2271,12 @@ void die_if_kernel(char *str, struct pt_regs *regs) do_exit(SIGSEGV); } +#define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) +#define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) + extern int handle_popc(u32 insn, struct pt_regs *regs); extern int handle_ldf_stq(u32 insn, struct pt_regs *regs); +extern int vis_emul(struct pt_regs *, unsigned int); void do_illegal_instruction(struct pt_regs *regs) { @@ -2287,10 +2301,18 @@ void do_illegal_instruction(struct pt_regs *regs) if (handle_ldf_stq(insn, regs)) return; } else if (tlb_type == hypervisor) { - extern int vis_emul(struct pt_regs *, unsigned int); + if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) { + if (!vis_emul(regs, insn)) + return; + } else { + struct fpustate *f = FPUSTATE; - if (!vis_emul(regs, insn)) - return; + /* XXX maybe verify XFSR bits like + * XXX do_fpother() does? + */ + if (do_mathemu(regs, f)) + return; + } } } info.si_signo = SIGILL; diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index a9b765271b8..bc18d480dd1 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -243,7 +243,7 @@ static inline int ok_for_kernel(unsigned int insn) return !floating_point_load_or_store_p(insn); } -static void kernel_mna_trap_fault(void) +static void kernel_mna_trap_fault(int fixup_tstate_asi) { struct pt_regs *regs = current_thread_info()->kern_una_regs; unsigned int insn = current_thread_info()->kern_una_insn; @@ -274,18 +274,15 @@ static void kernel_mna_trap_fault(void) regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - regs->tstate &= ~TSTATE_ASI; - regs->tstate |= (ASI_AIUS << 24UL); + if (fixup_tstate_asi) { + regs->tstate &= ~TSTATE_ASI; + regs->tstate |= (ASI_AIUS << 24UL); + } } -asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) +static void log_unaligned(struct pt_regs *regs) { static unsigned long count, last_time; - enum direction dir = decode_direction(insn); - int size = decode_access_size(insn); - - current_thread_info()->kern_una_regs = regs; - current_thread_info()->kern_una_insn = insn; if (jiffies - last_time > 5 * HZ) count = 0; @@ -295,6 +292,28 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) printk("Kernel unaligned access at TPC[%lx] ", regs->tpc); print_symbol("%s\n", regs->tpc); } +} + +asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) +{ + enum direction dir = decode_direction(insn); + int size = decode_access_size(insn); + int orig_asi, asi; + + current_thread_info()->kern_una_regs = regs; + current_thread_info()->kern_una_insn = insn; + + orig_asi = asi = decode_asi(insn, regs); + + /* If this is a {get,put}_user() on an unaligned userspace pointer, + * just signal a fault and do not log the event. + */ + if (asi == ASI_AIUS) { + kernel_mna_trap_fault(0); + return; + } + + log_unaligned(regs); if (!ok_for_kernel(insn) || dir == both) { printk("Unsupported unaligned load/store trap for kernel " @@ -302,10 +321,10 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) unaligned_panic("Kernel does fpu/atomic " "unaligned load/store.", regs); - kernel_mna_trap_fault(); + kernel_mna_trap_fault(0); } else { unsigned long addr, *reg_addr; - int orig_asi, asi, err; + int err; addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); @@ -315,7 +334,6 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]); #endif - orig_asi = asi = decode_asi(insn, regs); switch (asi) { case ASI_NL: case ASI_AIUPL: @@ -365,7 +383,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) /* Not reached... */ } if (unlikely(err)) - kernel_mna_trap_fault(); + kernel_mna_trap_fault(1); else advance(regs); } diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c index 84fedaa38aa..c3fd64706b5 100644 --- a/arch/sparc64/kernel/visemul.c +++ b/arch/sparc64/kernel/visemul.c @@ -128,9 +128,6 @@ /* 001001100 - Permute bytes as specified by GSR.MASK */ #define BSHUFFLE_OPF 0x04c -#define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) -#define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) - #define VIS_OPF_SHIFT 5 #define VIS_OPF_MASK (0x1ff << VIS_OPF_SHIFT) @@ -810,9 +807,6 @@ int vis_emul(struct pt_regs *regs, unsigned int insn) if (get_user(insn, (u32 __user *) pc)) return -EFAULT; - if ((insn & VIS_OPCODE_MASK) != VIS_OPCODE_VAL) - return -EINVAL; - opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT; switch (opf) { default: diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S index bd9de8c2a2a..4a6063f33e7 100644 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ b/arch/sparc64/kernel/vmlinux.lds.S @@ -13,6 +13,7 @@ SECTIONS . = 0x4000; .text 0x0000000000404000 : { + _text = .; *(.text) SCHED_TEXT LOCK_TEXT diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c index 53b9b1f528e..33fd0b265e7 100644 --- a/arch/sparc64/mm/hugetlbpage.c +++ b/arch/sparc64/mm/hugetlbpage.c @@ -235,6 +235,11 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) return pte; } +int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) +{ + return 0; +} + void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t entry) { diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 09cb7fccc03..054822a3e05 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -176,9 +176,9 @@ unsigned long sparc64_kern_sec_context __read_mostly; int bigkernel = 0; -kmem_cache_t *pgtable_cache __read_mostly; +struct kmem_cache *pgtable_cache __read_mostly; -static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags) +static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags) { clear_page(addr); } @@ -872,6 +872,115 @@ static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn, prom_halt(); } +static void __init trim_pavail(unsigned long *cur_size_p, + unsigned long *end_of_phys_p) +{ + unsigned long to_trim = *cur_size_p - cmdline_memory_size; + unsigned long avoid_start, avoid_end; + int i; + + to_trim = PAGE_ALIGN(to_trim); + + avoid_start = avoid_end = 0; +#ifdef CONFIG_BLK_DEV_INITRD + avoid_start = initrd_start; + avoid_end = PAGE_ALIGN(initrd_end); +#endif + + /* Trim some pavail[] entries in order to satisfy the + * requested "mem=xxx" kernel command line specification. + * + * We must not trim off the kernel image area nor the + * initial ramdisk range (if any). Also, we must not trim + * any pavail[] entry down to zero in order to preserve + * the invariant that all pavail[] entries have a non-zero + * size which is assumed by all of the code in here. + */ + for (i = 0; i < pavail_ents; i++) { + unsigned long start, end, kern_end; + unsigned long trim_low, trim_high, n; + + kern_end = PAGE_ALIGN(kern_base + kern_size); + + trim_low = start = pavail[i].phys_addr; + trim_high = end = start + pavail[i].reg_size; + + if (kern_base >= start && + kern_base < end) { + trim_low = kern_base; + if (kern_end >= end) + continue; + } + if (kern_end >= start && + kern_end < end) { + trim_high = kern_end; + } + if (avoid_start && + avoid_start >= start && + avoid_start < end) { + if (trim_low > avoid_start) + trim_low = avoid_start; + if (avoid_end >= end) + continue; + } + if (avoid_end && + avoid_end >= start && + avoid_end < end) { + if (trim_high < avoid_end) + trim_high = avoid_end; + } + + if (trim_high <= trim_low) + continue; + + if (trim_low == start && trim_high == end) { + /* Whole chunk is available for trimming. + * Trim all except one page, in order to keep + * entry non-empty. + */ + n = (end - start) - PAGE_SIZE; + if (n > to_trim) + n = to_trim; + + if (n) { + pavail[i].phys_addr += n; + pavail[i].reg_size -= n; + to_trim -= n; + } + } else { + n = (trim_low - start); + if (n > to_trim) + n = to_trim; + + if (n) { + pavail[i].phys_addr += n; + pavail[i].reg_size -= n; + to_trim -= n; + } + if (to_trim) { + n = end - trim_high; + if (n > to_trim) + n = to_trim; + if (n) { + pavail[i].reg_size -= n; + to_trim -= n; + } + } + } + + if (!to_trim) + break; + } + + /* Recalculate. */ + *cur_size_p = 0UL; + for (i = 0; i < pavail_ents; i++) { + *end_of_phys_p = pavail[i].phys_addr + + pavail[i].reg_size; + *cur_size_p += pavail[i].reg_size; + } +} + static unsigned long __init bootmem_init(unsigned long *pages_avail, unsigned long phys_base) { @@ -889,31 +998,13 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail, end_of_phys_memory = pavail[i].phys_addr + pavail[i].reg_size; bytes_avail += pavail[i].reg_size; - if (cmdline_memory_size) { - if (bytes_avail > cmdline_memory_size) { - unsigned long slack = bytes_avail - cmdline_memory_size; - - bytes_avail -= slack; - end_of_phys_memory -= slack; - - pavail[i].reg_size -= slack; - if ((long)pavail[i].reg_size <= 0L) { - pavail[i].phys_addr = 0xdeadbeefUL; - pavail[i].reg_size = 0UL; - pavail_ents = i; - } else { - pavail[i+1].reg_size = 0Ul; - pavail[i+1].phys_addr = 0xdeadbeefUL; - pavail_ents = i + 1; - } - break; - } - } } - *pages_avail = bytes_avail >> PAGE_SHIFT; - - end_pfn = end_of_phys_memory >> PAGE_SHIFT; + /* Determine the location of the initial ramdisk before trying + * to honor the "mem=xxx" command line argument. We must know + * where the kernel image and the ramdisk image are so that we + * do not trim those two areas from the physical memory map. + */ #ifdef CONFIG_BLK_DEV_INITRD /* Now have to check initial ramdisk, so that bootmap does not overwrite it */ @@ -932,6 +1023,16 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail, } } #endif + + if (cmdline_memory_size && + bytes_avail > cmdline_memory_size) + trim_pavail(&bytes_avail, + &end_of_phys_memory); + + *pages_avail = bytes_avail >> PAGE_SHIFT; + + end_pfn = end_of_phys_memory >> PAGE_SHIFT; + /* Initialize the boot-time allocator. */ max_pfn = max_low_pfn = end_pfn; min_low_pfn = (phys_base >> PAGE_SHIFT); diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c index beaa02810f0..236d02f41a0 100644 --- a/arch/sparc64/mm/tsb.c +++ b/arch/sparc64/mm/tsb.c @@ -239,7 +239,7 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign } } -static kmem_cache_t *tsb_caches[8] __read_mostly; +static struct kmem_cache *tsb_caches[8] __read_mostly; static const char *tsb_cache_names[8] = { "tsb_8KB", diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index d70b60a3bbc..737c26923c0 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -477,6 +477,10 @@ xcall_sync_tick: sethi %hi(109f), %g7 b,pt %xcc, etrap_irq 109: or %g7, %lo(109b), %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif call smp_synchronize_tick_client nop clr %l6 @@ -508,6 +512,10 @@ xcall_report_regs: sethi %hi(109f), %g7 b,pt %xcc, etrap_irq 109: or %g7, %lo(109b), %g7 +#ifdef CONFIG_TRACE_IRQFLAGS + call trace_hardirqs_off + nop +#endif call __show_regs add %sp, PTREGS_OFF, %o0 clr %l6 diff --git a/arch/sparc64/solaris/fs.c b/arch/sparc64/solaris/fs.c index 12a940cc791..61be597bf43 100644 --- a/arch/sparc64/solaris/fs.c +++ b/arch/sparc64/solaris/fs.c @@ -449,7 +449,7 @@ asmlinkage int solaris_fstatvfs(unsigned int fd, u32 buf) error = -EBADF; file = fget(fd); if (file) { - error = report_statvfs(file->f_vfsmnt, file->f_dentry->d_inode, buf); + error = report_statvfs(file->f_path.mnt, file->f_path.dentry->d_inode, buf); fput(file); } @@ -481,7 +481,7 @@ asmlinkage int solaris_fstatvfs64(unsigned int fd, u32 buf) file = fget(fd); if (file) { lock_kernel(); - error = report_statvfs64(file->f_vfsmnt, file->f_dentry->d_inode, buf); + error = report_statvfs64(file->f_path.mnt, file->f_path.dentry->d_inode, buf); unlock_kernel(); fput(file); } diff --git a/arch/sparc64/solaris/ioctl.c b/arch/sparc64/solaris/ioctl.c index be0a054e3ed..330743c5b3d 100644 --- a/arch/sparc64/solaris/ioctl.c +++ b/arch/sparc64/solaris/ioctl.c @@ -299,8 +299,8 @@ static inline int solaris_sockmod(unsigned int fd, unsigned int cmd, u32 arg) rcu_read_lock(); fdt = files_fdtable(current->files); if (! fdt->fd[fd] || - ! fdt->fd[fd]->f_dentry || - ! (ino = fdt->fd[fd]->f_dentry->d_inode) || + ! fdt->fd[fd]->f_path.dentry || + ! (ino = fdt->fd[fd]->f_path.dentry->d_inode) || ! S_ISSOCK(ino->i_mode)) { rcu_read_unlock(); return TBADF; @@ -480,7 +480,7 @@ static inline int solaris_S(struct file *filp, unsigned int fd, unsigned int cmd struct sol_socket_struct *sock; struct module_info *mi; - ino = filp->f_dentry->d_inode; + ino = filp->f_path.dentry->d_inode; if (!S_ISSOCK(ino->i_mode)) return -EBADF; sock = filp->private_data; diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c index 9ed997982f8..bca16e8c95c 100644 --- a/arch/sparc64/solaris/misc.c +++ b/arch/sparc64/solaris/misc.c @@ -77,7 +77,7 @@ static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 o if (!file) goto out; else { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; if(imajor(inode) == MEM_MAJOR && iminor(inode) == 5) { flags |= MAP_ANONYMOUS; @@ -423,9 +423,7 @@ asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid) Solaris setpgrp and setsid? */ ret = sys_setpgid(0, 0); if (ret) return ret; - mutex_lock(&tty_mutex); - current->signal->tty = NULL; - mutex_unlock(&tty_mutex); + proc_clear_tty(current); return process_group(current); } case 2: /* getsid */ diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c index 7c90e41fd3b..89a4757f192 100644 --- a/arch/sparc64/solaris/socksys.c +++ b/arch/sparc64/solaris/socksys.c @@ -96,13 +96,13 @@ static int socksys_open(struct inode * inode, struct file * filp) * No shit. WTF is it supposed to do, anyway? * * Try instead: - * d_delete(filp->f_dentry), then d_instantiate with sock inode + * d_delete(filp->f_path.dentry), then d_instantiate with sock inode */ - dentry = filp->f_dentry; - filp->f_dentry = dget(fcheck(fd)->f_dentry); - filp->f_dentry->d_inode->i_rdev = inode->i_rdev; - filp->f_dentry->d_inode->i_flock = inode->i_flock; - SOCKET_I(filp->f_dentry->d_inode)->file = filp; + dentry = filp->f_path.dentry; + filp->f_path.dentry = dget(fcheck(fd)->f_path.dentry); + filp->f_path.dentry->d_inode->i_rdev = inode->i_rdev; + filp->f_path.dentry->d_inode->i_flock = inode->i_flock; + SOCKET_I(filp->f_path.dentry->d_inode)->file = filp; filp->f_op = &socksys_file_ops; sock = (struct sol_socket_struct*) mykmalloc(sizeof(struct sol_socket_struct), GFP_KERNEL); @@ -148,7 +148,7 @@ static unsigned int socksys_poll(struct file * filp, poll_table * wait) struct inode *ino; unsigned int mask = 0; - ino=filp->f_dentry->d_inode; + ino=filp->f_path.dentry->d_inode; if (ino && S_ISSOCK(ino->i_mode)) { struct sol_socket_struct *sock; sock = (struct sol_socket_struct*)filp->private_data; diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c index b84e5456b02..a9d32ceabf2 100644 --- a/arch/sparc64/solaris/timod.c +++ b/arch/sparc64/solaris/timod.c @@ -147,7 +147,7 @@ static void timod_wake_socket(unsigned int fd) SOLD("wakeing socket"); fdt = files_fdtable(current->files); - sock = SOCKET_I(fdt->fd[fd]->f_dentry->d_inode); + sock = SOCKET_I(fdt->fd[fd]->f_path.dentry->d_inode); wake_up_interruptible(&sock->wait); read_lock(&sock->sk->sk_callback_lock); if (sock->fasync_list && !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) @@ -361,7 +361,7 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len, fdt = files_fdtable(current->files); filp = fdt->fd[fd]; - ino = filp->f_dentry->d_inode; + ino = filp->f_path.dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLD("entry"); if (get_user(ret, (int __user *)A(ctl_buf))) @@ -644,7 +644,7 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us SOLDD(("%u %p %d %p %p %d %p %d\n", fd, ctl_buf, ctl_maxlen, ctl_len, data_buf, data_maxlen, data_len, *flags_p)); fdt = files_fdtable(current->files); filp = fdt->fd[fd]; - ino = filp->f_dentry->d_inode; + ino = filp->f_path.dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLDD(("%p %p\n", sock->pfirst, sock->pfirst ? sock->pfirst->next : NULL)); if ( ctl_maxlen > 0 && !sock->pfirst && SOCKET_I(ino)->type == SOCK_STREAM @@ -865,7 +865,7 @@ asmlinkage int solaris_getmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3) filp = fdt->fd[fd]; if(!filp) goto out; - ino = filp->f_dentry->d_inode; + ino = filp->f_path.dentry->d_inode; if (!ino || !S_ISSOCK(ino->i_mode)) goto out; @@ -933,7 +933,7 @@ asmlinkage int solaris_putmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3) filp = fdt->fd[fd]; if(!filp) goto out; - ino = filp->f_dentry->d_inode; + ino = filp->f_path.dentry->d_inode; if (!ino) goto out; if (!S_ISSOCK(ino->i_mode) && |