diff options
Diffstat (limited to 'arch')
28 files changed, 301 insertions, 257 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 083c5df42d3..189d5eababa 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -522,7 +522,7 @@ source "mm/Kconfig" config NUMA bool "NUMA Support (EXPERIMENTAL)" - depends on DISCONTIGMEM + depends on DISCONTIGMEM && BROKEN help Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option is for configuring high-end multiprocessor diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 8f1e78551b1..e211aa7404e 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -1036,7 +1036,7 @@ debug_spin_lock(spinlock_t * lock, const char *base_file, int line_no) " br 1b\n" ".previous" : "=r" (tmp), "=m" (lock->lock), "=r" (stuck) - : "1" (lock->lock), "2" (stuck) : "memory"); + : "m" (lock->lock), "2" (stuck) : "memory"); if (stuck < 0) { printk(KERN_WARNING @@ -1115,7 +1115,7 @@ void _raw_write_lock(rwlock_t * lock) ".previous" : "=m" (*(volatile int *)lock), "=&r" (regx), "=&r" (regy), "=&r" (stuck_lock), "=&r" (stuck_reader) - : "0" (*(volatile int *)lock), "3" (stuck_lock), "4" (stuck_reader) : "memory"); + : "m" (*(volatile int *)lock), "3" (stuck_lock), "4" (stuck_reader) : "memory"); if (stuck_lock < 0) { printk(KERN_WARNING "write_lock stuck at %p\n", inline_pc); @@ -1153,7 +1153,7 @@ void _raw_read_lock(rwlock_t * lock) " br 1b\n" ".previous" : "=m" (*(volatile int *)lock), "=&r" (regx), "=&r" (stuck_lock) - : "0" (*(volatile int *)lock), "2" (stuck_lock) : "memory"); + : "m" (*(volatile int *)lock), "2" (stuck_lock) : "memory"); if (stuck_lock < 0) { printk(KERN_WARNING "read_lock stuck at %p\n", inline_pc); diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c index 908eb4af8de..ba788cfdc3c 100644 --- a/arch/alpha/oprofile/common.c +++ b/arch/alpha/oprofile/common.c @@ -65,7 +65,7 @@ op_axp_setup(void) model->reg_setup(®, ctr, &sys); /* Configure the registers on all cpus. */ - smp_call_function(model->cpu_setup, ®, 0, 1); + (void)smp_call_function(model->cpu_setup, ®, 0, 1); model->cpu_setup(®); return 0; } @@ -86,7 +86,7 @@ op_axp_cpu_start(void *dummy) static int op_axp_start(void) { - smp_call_function(op_axp_cpu_start, NULL, 0, 1); + (void)smp_call_function(op_axp_cpu_start, NULL, 0, 1); op_axp_cpu_start(NULL); return 0; } @@ -101,7 +101,7 @@ op_axp_cpu_stop(void *dummy) static void op_axp_stop(void) { - smp_call_function(op_axp_cpu_stop, NULL, 0, 1); + (void)smp_call_function(op_axp_cpu_stop, NULL, 0, 1); op_axp_cpu_stop(NULL); } diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 7bc4a583f4e..c65c6eb9810 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -310,7 +310,7 @@ menu "Kernel Features" config SMP bool "Symmetric Multi-Processing (EXPERIMENTAL)" - depends on EXPERIMENTAL #&& n + depends on EXPERIMENTAL && BROKEN #&& n help This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index d571c37ac30..4554c961251 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -617,7 +617,7 @@ baddataabort(int code, unsigned long instr, struct pt_regs *regs) notify_die("unknown data abort code", regs, &info, instr, 0); } -volatile void __bug(const char *file, int line, void *data) +void __attribute__((noreturn)) __bug(const char *file, int line, void *data) { printk(KERN_CRIT"kernel BUG at %s:%d!", file, line); if (data) diff --git a/arch/arm/nwfpe/fpopcode.h b/arch/arm/nwfpe/fpopcode.h index 8035f4faafb..1777e92a88e 100644 --- a/arch/arm/nwfpe/fpopcode.h +++ b/arch/arm/nwfpe/fpopcode.h @@ -370,20 +370,20 @@ TABLE 5 #define getRoundingMode(opcode) ((opcode & MASK_ROUNDING_MODE) >> 5) #ifdef CONFIG_FPE_NWFPE_XP -static inline const floatx80 getExtendedConstant(const unsigned int nIndex) +static inline __attribute_pure__ floatx80 getExtendedConstant(const unsigned int nIndex) { extern const floatx80 floatx80Constant[]; return floatx80Constant[nIndex]; } #endif -static inline const float64 getDoubleConstant(const unsigned int nIndex) +static inline __attribute_pure__ float64 getDoubleConstant(const unsigned int nIndex) { extern const float64 float64Constant[]; return float64Constant[nIndex]; } -static inline const float32 getSingleConstant(const unsigned int nIndex) +static inline __attribute_pure__ float32 getSingleConstant(const unsigned int nIndex) { extern const float32 float32Constant[]; return float32Constant[nIndex]; diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index da6c46d667c..8c242bb1ef4 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c @@ -195,7 +195,7 @@ static void disable_lapic_nmi_watchdog(void) wrmsr(MSR_P6_EVNTSEL0, 0, 0); break; case 15: - if (boot_cpu_data.x86_model > 0x3) + if (boot_cpu_data.x86_model > 0x4) break; wrmsr(MSR_P4_IQ_CCCR0, 0, 0); @@ -432,7 +432,7 @@ void setup_apic_nmi_watchdog (void) setup_p6_watchdog(); break; case 15: - if (boot_cpu_data.x86_model > 0x3) + if (boot_cpu_data.x86_model > 0x4) return; if (!setup_p4_watchdog()) diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index a61f33d06ea..cd2d5d5514f 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -803,15 +803,17 @@ void math_error(void __user *eip) */ cwd = get_fpu_cwd(task); swd = get_fpu_swd(task); - switch (((~cwd) & swd & 0x3f) | (swd & 0x240)) { + switch (swd & ~cwd & 0x3f) { case 0x000: default: break; case 0x001: /* Invalid Op */ - case 0x041: /* Stack Fault */ - case 0x241: /* Stack Fault | Direction */ + /* + * swd & 0x240 == 0x040: Stack Underflow + * swd & 0x240 == 0x240: Stack Overflow + * User must clear the SF bit (0x40) if set + */ info.si_code = FPE_FLTINV; - /* Should we clear the SF or let user space do it ???? */ break; case 0x002: /* Denormalize */ case 0x010: /* Underflow */ diff --git a/arch/ia64/hp/sim/boot/boot_head.S b/arch/ia64/hp/sim/boot/boot_head.S index 9364199e563..1c8c7e6a9a5 100644 --- a/arch/ia64/hp/sim/boot/boot_head.S +++ b/arch/ia64/hp/sim/boot/boot_head.S @@ -22,7 +22,7 @@ GLOBAL_ENTRY(_start) .save rp, r0 .body movl gp = __gp - movl sp = stack_mem + movl sp = stack_mem+16384-16 bsw.1 br.call.sptk.many rp=start_bootloader END(_start) diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 37e10e010a2..414cdf2e3c9 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -323,7 +323,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) struct pci_controller *controller; struct pcibus_bussoft *prom_bussoft_ptr; struct hubdev_info *hubdev_info; - void *provider_soft; + void *provider_soft = NULL; struct sn_pcibus_provider *provider; status = sal_get_pcibus_info((u64) segment, (u64) busnum, @@ -339,7 +339,7 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) if (bus == NULL) { bus = pci_scan_bus(busnum, &pci_root_ops, controller); if (bus == NULL) - return; /* error, or bus already scanned */ + goto error_return; /* error, or bus already scanned */ bus->sysdata = NULL; } @@ -352,28 +352,30 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) */ if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) - return; /* unsupported asic type */ + goto error_return; /* unsupported asic type */ if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) goto error_return; /* no further fixup necessary */ provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type]; if (provider == NULL) - return; /* no provider registerd for this asic */ + goto error_return; /* no provider registerd for this asic */ - provider_soft = NULL; + bus->sysdata = controller; if (provider->bus_fixup) provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller); - if (provider_soft == NULL) - return; /* fixup failed or not applicable */ + if (provider_soft == NULL) { + /* fixup failed or not applicable */ + bus->sysdata = NULL; + goto error_return; + } /* * Generic bus fixup goes here. Don't reference prom_bussoft_ptr * after this point. */ - bus->sysdata = controller; PCI_CONTROLLER(bus)->platform_data = provider_soft; nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base); cnode = nasid_to_cnodeid(nasid); diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index 7772951df31..7622d4ec5f0 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -269,7 +269,7 @@ config NR_CPUS # Common NUMA Features config NUMA bool "Numa Memory Allocation Support" - depends on SMP + depends on SMP && BROKEN default n # turning this on wastes a bunch of space. @@ -286,6 +286,7 @@ menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" config PCI bool "PCI support" + depends on BROKEN default n help Find out whether you have a PCI motherboard. PCI is the name of a diff --git a/arch/m32r/Kconfig.debug b/arch/m32r/Kconfig.debug index 31039723804..bbf711bab69 100644 --- a/arch/m32r/Kconfig.debug +++ b/arch/m32r/Kconfig.debug @@ -20,7 +20,7 @@ config DEBUG_STACK_USAGE config DEBUG_PAGEALLOC bool "Page alloc debugging" - depends on DEBUG_KERNEL + depends on DEBUG_KERNEL && BROKEN help Unmap pages from the kernel linear mapping after free_pages(). This results in a large slowdown, but helps to find certain types diff --git a/arch/m32r/kernel/setup_m32700ut.c b/arch/m32r/kernel/setup_m32700ut.c index a146b24a556..708634b685e 100644 --- a/arch/m32r/kernel/setup_m32700ut.c +++ b/arch/m32r/kernel/setup_m32700ut.c @@ -30,9 +30,11 @@ typedef struct { unsigned long icucr; /* ICU Control Register */ } icu_data_t; +static icu_data_t icu_data[M32700UT_NUM_CPU_IRQ]; +#else +icu_data_t icu_data[M32700UT_NUM_CPU_IRQ]; #endif /* CONFIG_SMP */ -static icu_data_t icu_data[M32700UT_NUM_CPU_IRQ]; static void disable_m32700ut_irq(unsigned int irq) { diff --git a/arch/m32r/kernel/setup_opsput.c b/arch/m32r/kernel/setup_opsput.c index f0301f58bcc..d7b7ec6d30f 100644 --- a/arch/m32r/kernel/setup_opsput.c +++ b/arch/m32r/kernel/setup_opsput.c @@ -31,9 +31,11 @@ typedef struct { unsigned long icucr; /* ICU Control Register */ } icu_data_t; +static icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ]; +#else +icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ]; #endif /* CONFIG_SMP */ -static icu_data_t icu_data[OPSPUT_NUM_CPU_IRQ]; static void disable_opsput_irq(unsigned int irq) { diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c index f9a0e723478..640d592ea07 100644 --- a/arch/m32r/kernel/smpboot.c +++ b/arch/m32r/kernel/smpboot.c @@ -91,6 +91,7 @@ extern struct { /* which physical physical ID maps to which logical CPU number */ static volatile int physid_2_cpu[NR_CPUS]; +#define physid_to_cpu(physid) physid_2_cpu[physid] /* which logical CPU number maps to which physical ID */ volatile int cpu_2_physid[NR_CPUS]; diff --git a/arch/m32r/lib/csum_partial_copy.c b/arch/m32r/lib/csum_partial_copy.c index c871b4606b0..ddb16a83a8c 100644 --- a/arch/m32r/lib/csum_partial_copy.c +++ b/arch/m32r/lib/csum_partial_copy.c @@ -58,3 +58,4 @@ csum_partial_copy_from_user (const unsigned char __user *src, return csum_partial(dst, len-missing, sum); } EXPORT_SYMBOL(csum_partial_copy_from_user); +EXPORT_SYMBOL(csum_partial); diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index 1d1a01e54b3..08e72795555 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -12,12 +12,14 @@ #include <linux/mmzone.h> #include <linux/initrd.h> #include <linux/nodemask.h> +#include <linux/module.h> #include <asm/setup.h> extern char _end[]; struct pglist_data *node_data[MAX_NUMNODES]; +EXPORT_SYMBOL(node_data); static bootmem_data_t node_bdata[MAX_NUMNODES] __initdata; pg_data_t m32r_node_data[MAX_NUMNODES]; diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index f6db3b385fe..e6fa1d1cc03 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -911,6 +911,7 @@ config PPCBUG_NVRAM default y if PPC_PREP config SMP + depends on PPC_STD_MMU bool "Symmetric multi-processing support" ---help--- This enables support for systems with more than one CPU. If you have @@ -930,7 +931,7 @@ config SMP config IRQ_ALL_CPUS bool "Distribute interrupts on all CPUs by default" - depends on SMP + depends on SMP && !MV64360 help This option gives the kernel permission to distribute IRQs across multiple CPUs. Saying N here will route all IRQs to the first @@ -1121,7 +1122,9 @@ config PROC_HARDWARE source "drivers/zorro/Kconfig" +if !44x || BROKEN source kernel/power/Kconfig +endif config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" diff --git a/arch/ppc/platforms/4xx/Kconfig b/arch/ppc/platforms/4xx/Kconfig index f7c045764e0..805dd98908a 100644 --- a/arch/ppc/platforms/4xx/Kconfig +++ b/arch/ppc/platforms/4xx/Kconfig @@ -3,6 +3,11 @@ config 4xx depends on 40x || 44x default y +config WANT_EARLY_SERIAL + bool + select SERIAL_8250 + default n + menu "IBM 4xx options" depends on 4xx @@ -18,6 +23,7 @@ config ASH config BUBINGA bool "Bubinga" + select WANT_EARLY_SERIAL help This option enables support for the IBM 405EP evaluation board. @@ -70,21 +76,25 @@ choice config BAMBOO bool "Bamboo" + select WANT_EARLY_SERIAL help This option enables support for the IBM PPC440EP evaluation board. config EBONY bool "Ebony" + select WANT_EARLY_SERIAL help This option enables support for the IBM PPC440GP evaluation board. config LUAN bool "Luan" + select WANT_EARLY_SERIAL help This option enables support for the IBM PPC440SP evaluation board. config OCOTEA bool "Ocotea" + select WANT_EARLY_SERIAL help This option enables support for the IBM PPC440GX evaluation board. @@ -230,10 +240,6 @@ config PPC_GEN550 depends on 4xx default y -config PM - bool "Power Management support (EXPERIMENTAL)" - depends on 4xx && EXPERIMENTAL - choice prompt "TTYS0 device and default console" depends on 40x diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c index 20062145e84..d47fecb42cc 100644 --- a/arch/s390/kernel/cpcmd.c +++ b/arch/s390/kernel/cpcmd.c @@ -46,9 +46,9 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code) "lra 3,0(%4)\n" "lr 5,%5\n" "diag 2,4,0x8\n" - "brc 8, .Litfits\n" + "brc 8, 1f\n" "ar 5, %5\n" - ".Litfits: \n" + "1: \n" "lr %0,4\n" "lr %1,5\n" : "=d" (return_code), "=d" (return_len) @@ -64,9 +64,9 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code) "sam31\n" "diag 2,4,0x8\n" "sam64\n" - "brc 8, .Litfits\n" + "brc 8, 1f\n" "agr 5, %5\n" - ".Litfits: \n" + "1: \n" "lgr %0,4\n" "lgr %1,5\n" : "=d" (return_code), "=d" (return_len) diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c index 1bd430d0ca0..8faa8dc4de4 100644 --- a/arch/sparc/kernel/sparc_ksyms.c +++ b/arch/sparc/kernel/sparc_ksyms.c @@ -98,8 +98,9 @@ extern void ___rw_write_enter(void); * The module references will be fixed up by module_frob_arch_sections. */ #define DOT_ALIAS2(__ret, __x, __arg1, __arg2) \ - extern __ret __x(__arg1, __arg2) \ - __attribute__((weak, alias("." # __x))); + extern __ret __x(__arg1, __arg2); \ + asm(".weak " #__x);\ + asm(#__x "=." #__x); DOT_ALIAS2(int, div, int, int) DOT_ALIAS2(int, mul, int, int) diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile index 093281bdf85..6f00ab8b9d2 100644 --- a/arch/sparc64/kernel/Makefile +++ b/arch/sparc64/kernel/Makefile @@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror extra-y := head.o init_task.o vmlinux.lds obj-y := process.o setup.o cpu.o idprom.o \ - traps.o devices.o auxio.o \ + traps.o devices.o auxio.o una_asm.o \ irq.o ptrace.o time.o sys_sparc.o signal.o \ unaligned.o central.o pci.o starfire.o semaphore.o \ power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 100b0107c4b..0c9e54b2f0c 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -2127,6 +2127,9 @@ void __init trap_init(void) TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || TI_NEW_CHILD != offsetof(struct thread_info, new_child) || TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) || + TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) || + TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) || + TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) || TI_FPREGS != offsetof(struct thread_info, fpregs) || (TI_FPREGS & (64 - 1))) thread_info_offsets_are_bolixed_dave(); diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S new file mode 100644 index 00000000000..cbb40585253 --- /dev/null +++ b/arch/sparc64/kernel/una_asm.S @@ -0,0 +1,153 @@ +/* una_asm.S: Kernel unaligned trap assembler helpers. + * + * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + + .text + +kernel_unaligned_trap_fault: + call kernel_mna_trap_fault + nop + retl + nop + .size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault + + .globl __do_int_store +__do_int_store: + rd %asi, %o4 + wr %o3, 0, %asi + ldx [%o2], %g3 + cmp %o1, 2 + be,pn %icc, 2f + cmp %o1, 4 + be,pt %icc, 1f + srlx %g3, 24, %g2 + srlx %g3, 56, %g1 + srlx %g3, 48, %g7 +4: stba %g1, [%o0] %asi + srlx %g3, 40, %g1 +5: stba %g7, [%o0 + 1] %asi + srlx %g3, 32, %g7 +6: stba %g1, [%o0 + 2] %asi +7: stba %g7, [%o0 + 3] %asi + srlx %g3, 16, %g1 +8: stba %g2, [%o0 + 4] %asi + srlx %g3, 8, %g7 +9: stba %g1, [%o0 + 5] %asi +10: stba %g7, [%o0 + 6] %asi + ba,pt %xcc, 0f +11: stba %g3, [%o0 + 7] %asi +1: srl %g3, 16, %g7 +12: stba %g2, [%o0] %asi + srl %g3, 8, %g2 +13: stba %g7, [%o0 + 1] %asi +14: stba %g2, [%o0 + 2] %asi + ba,pt %xcc, 0f +15: stba %g3, [%o0 + 3] %asi +2: srl %g3, 8, %g2 +16: stba %g2, [%o0] %asi +17: stba %g3, [%o0 + 1] %asi +0: + wr %o4, 0x0, %asi + retl + nop + .size __do_int_store, .-__do_int_store + + .section __ex_table + .word 4b, kernel_unaligned_trap_fault + .word 5b, kernel_unaligned_trap_fault + .word 6b, kernel_unaligned_trap_fault + .word 7b, kernel_unaligned_trap_fault + .word 8b, kernel_unaligned_trap_fault + .word 9b, kernel_unaligned_trap_fault + .word 10b, kernel_unaligned_trap_fault + .word 11b, kernel_unaligned_trap_fault + .word 12b, kernel_unaligned_trap_fault + .word 13b, kernel_unaligned_trap_fault + .word 14b, kernel_unaligned_trap_fault + .word 15b, kernel_unaligned_trap_fault + .word 16b, kernel_unaligned_trap_fault + .word 17b, kernel_unaligned_trap_fault + .previous + + .globl do_int_load +do_int_load: + rd %asi, %o5 + wr %o4, 0, %asi + cmp %o1, 8 + bge,pn %icc, 9f + cmp %o1, 4 + be,pt %icc, 6f +4: lduba [%o2] %asi, %g2 +5: lduba [%o2 + 1] %asi, %g3 + sll %g2, 8, %g2 + brz,pt %o3, 3f + add %g2, %g3, %g2 + sllx %g2, 48, %g2 + srax %g2, 48, %g2 +3: ba,pt %xcc, 0f + stx %g2, [%o0] +6: lduba [%o2 + 1] %asi, %g3 + sll %g2, 24, %g2 +7: lduba [%o2 + 2] %asi, %g7 + sll %g3, 16, %g3 +8: lduba [%o2 + 3] %asi, %g1 + sll %g7, 8, %g7 + or %g2, %g3, %g2 + or %g7, %g1, %g7 + or %g2, %g7, %g2 + brnz,a,pt %o3, 3f + sra %g2, 0, %g2 +3: ba,pt %xcc, 0f + stx %g2, [%o0] +9: lduba [%o2] %asi, %g2 +10: lduba [%o2 + 1] %asi, %g3 + sllx %g2, 56, %g2 +11: lduba [%o2 + 2] %asi, %g7 + sllx %g3, 48, %g3 +12: lduba [%o2 + 3] %asi, %g1 + sllx %g7, 40, %g7 + sllx %g1, 32, %g1 + or %g2, %g3, %g2 + or %g7, %g1, %g7 +13: lduba [%o2 + 4] %asi, %g3 + or %g2, %g7, %g7 +14: lduba [%o2 + 5] %asi, %g1 + sllx %g3, 24, %g3 +15: lduba [%o2 + 6] %asi, %g2 + sllx %g1, 16, %g1 + or %g7, %g3, %g7 +16: lduba [%o2 + 7] %asi, %g3 + sllx %g2, 8, %g2 + or %g7, %g1, %g7 + or %g2, %g3, %g2 + or %g7, %g2, %g7 + cmp %o1, 8 + be,a,pt %icc, 0f + stx %g7, [%o0] + srlx %g7, 32, %g2 + sra %g7, 0, %g7 + stx %g2, [%o0] + stx %g7, [%o0 + 8] +0: + wr %o5, 0x0, %asi + retl + nop + .size __do_int_load, .-__do_int_load + + .section __ex_table + .word 4b, kernel_unaligned_trap_fault + .word 5b, kernel_unaligned_trap_fault + .word 6b, kernel_unaligned_trap_fault + .word 7b, kernel_unaligned_trap_fault + .word 8b, kernel_unaligned_trap_fault + .word 9b, kernel_unaligned_trap_fault + .word 10b, kernel_unaligned_trap_fault + .word 11b, kernel_unaligned_trap_fault + .word 12b, kernel_unaligned_trap_fault + .word 13b, kernel_unaligned_trap_fault + .word 14b, kernel_unaligned_trap_fault + .word 15b, kernel_unaligned_trap_fault + .word 16b, kernel_unaligned_trap_fault + .previous diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 4372bf32ecf..11c3e88732e 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -180,169 +180,28 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs) die_if_kernel(str, regs); } -#define do_integer_load(dest_reg, size, saddr, is_signed, asi, errh) ({ \ -__asm__ __volatile__ ( \ - "wr %4, 0, %%asi\n\t" \ - "cmp %1, 8\n\t" \ - "bge,pn %%icc, 9f\n\t" \ - " cmp %1, 4\n\t" \ - "be,pt %%icc, 6f\n" \ -"4:\t" " lduba [%2] %%asi, %%l1\n" \ -"5:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sll %%l1, 8, %%l1\n\t" \ - "brz,pt %3, 3f\n\t" \ - " add %%l1, %%l2, %%l1\n\t" \ - "sllx %%l1, 48, %%l1\n\t" \ - "srax %%l1, 48, %%l1\n" \ -"3:\t" "ba,pt %%xcc, 0f\n\t" \ - " stx %%l1, [%0]\n" \ -"6:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sll %%l1, 24, %%l1\n" \ -"7:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \ - "sll %%l2, 16, %%l2\n" \ -"8:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \ - "sll %%g7, 8, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%g7, %%l1\n\t" \ - "brnz,a,pt %3, 3f\n\t" \ - " sra %%l1, 0, %%l1\n" \ -"3:\t" "ba,pt %%xcc, 0f\n\t" \ - " stx %%l1, [%0]\n" \ -"9:\t" "lduba [%2] %%asi, %%l1\n" \ -"10:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sllx %%l1, 56, %%l1\n" \ -"11:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \ - "sllx %%l2, 48, %%l2\n" \ -"12:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \ - "sllx %%g7, 40, %%g7\n\t" \ - "sllx %%g1, 32, %%g1\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n" \ -"13:\t" "lduba [%2 + 4] %%asi, %%l2\n\t" \ - "or %%l1, %%g7, %%g7\n" \ -"14:\t" "lduba [%2 + 5] %%asi, %%g1\n\t" \ - "sllx %%l2, 24, %%l2\n" \ -"15:\t" "lduba [%2 + 6] %%asi, %%l1\n\t" \ - "sllx %%g1, 16, %%g1\n\t" \ - "or %%g7, %%l2, %%g7\n" \ -"16:\t" "lduba [%2 + 7] %%asi, %%l2\n\t" \ - "sllx %%l1, 8, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%l1, %%g7\n\t" \ - "cmp %1, 8\n\t" \ - "be,a,pt %%icc, 0f\n\t" \ - " stx %%g7, [%0]\n\t" \ - "srlx %%g7, 32, %%l1\n\t" \ - "sra %%g7, 0, %%g7\n\t" \ - "stx %%l1, [%0]\n\t" \ - "stx %%g7, [%0 + 8]\n" \ -"0:\n\t" \ - "wr %%g0, %5, %%asi\n\n\t" \ - ".section __ex_table\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed), \ - "r" (asi), "i" (ASI_AIUS) \ - : "l1", "l2", "g7", "g1", "cc"); \ -}) +extern void do_int_load(unsigned long *dest_reg, int size, + unsigned long *saddr, int is_signed, int asi); -#define store_common(dst_addr, size, src_val, asi, errh) ({ \ -__asm__ __volatile__ ( \ - "wr %3, 0, %%asi\n\t" \ - "ldx [%2], %%l1\n" \ - "cmp %1, 2\n\t" \ - "be,pn %%icc, 2f\n\t" \ - " cmp %1, 4\n\t" \ - "be,pt %%icc, 1f\n\t" \ - " srlx %%l1, 24, %%l2\n\t" \ - "srlx %%l1, 56, %%g1\n\t" \ - "srlx %%l1, 48, %%g7\n" \ -"4:\t" "stba %%g1, [%0] %%asi\n\t" \ - "srlx %%l1, 40, %%g1\n" \ -"5:\t" "stba %%g7, [%0 + 1] %%asi\n\t" \ - "srlx %%l1, 32, %%g7\n" \ -"6:\t" "stba %%g1, [%0 + 2] %%asi\n" \ -"7:\t" "stba %%g7, [%0 + 3] %%asi\n\t" \ - "srlx %%l1, 16, %%g1\n" \ -"8:\t" "stba %%l2, [%0 + 4] %%asi\n\t" \ - "srlx %%l1, 8, %%g7\n" \ -"9:\t" "stba %%g1, [%0 + 5] %%asi\n" \ -"10:\t" "stba %%g7, [%0 + 6] %%asi\n\t" \ - "ba,pt %%xcc, 0f\n" \ -"11:\t" " stba %%l1, [%0 + 7] %%asi\n" \ -"1:\t" "srl %%l1, 16, %%g7\n" \ -"12:\t" "stba %%l2, [%0] %%asi\n\t" \ - "srl %%l1, 8, %%l2\n" \ -"13:\t" "stba %%g7, [%0 + 1] %%asi\n" \ -"14:\t" "stba %%l2, [%0 + 2] %%asi\n\t" \ - "ba,pt %%xcc, 0f\n" \ -"15:\t" " stba %%l1, [%0 + 3] %%asi\n" \ -"2:\t" "srl %%l1, 8, %%l2\n" \ -"16:\t" "stba %%l2, [%0] %%asi\n" \ -"17:\t" "stba %%l1, [%0 + 1] %%asi\n" \ -"0:\n\t" \ - "wr %%g0, %4, %%asi\n\n\t" \ - ".section __ex_table\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\t" \ - ".word 17b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dst_addr), "r" (size), "r" (src_val), "r" (asi), "i" (ASI_AIUS)\ - : "l1", "l2", "g7", "g1", "cc"); \ -}) - -#define do_integer_store(reg_num, size, dst_addr, regs, asi, errh) ({ \ - unsigned long zero = 0; \ - unsigned long *src_val = &zero; \ - \ - if (size == 16) { \ - size = 8; \ - zero = (((long)(reg_num ? \ - (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | \ - (unsigned)fetch_reg(reg_num + 1, regs); \ - } else if (reg_num) src_val = fetch_reg_addr(reg_num, regs); \ - store_common(dst_addr, size, src_val, asi, errh); \ -}) - -extern void smp_capture(void); -extern void smp_release(void); - -#define do_atomic(srcdest_reg, mem, errh) ({ \ - unsigned long flags, tmp; \ - \ - smp_capture(); \ - local_irq_save(flags); \ - tmp = *srcdest_reg; \ - do_integer_load(srcdest_reg, 4, mem, 0, errh); \ - store_common(mem, 4, &tmp, errh); \ - local_irq_restore(flags); \ - smp_release(); \ -}) +extern void __do_int_store(unsigned long *dst_addr, int size, + unsigned long *src_val, int asi); + +static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr, + struct pt_regs *regs, int asi) +{ + unsigned long zero = 0; + unsigned long *src_val = &zero; + + if (size == 16) { + size = 8; + zero = (((long)(reg_num ? + (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | + (unsigned)fetch_reg(reg_num + 1, regs); + } else if (reg_num) { + src_val = fetch_reg_addr(reg_num, regs); + } + __do_int_store(dst_addr, size, src_val, asi); +} static inline void advance(struct pt_regs *regs) { @@ -364,24 +223,29 @@ static inline int ok_for_kernel(unsigned int insn) return !floating_point_load_or_store_p(insn); } -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault"); - -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) +void kernel_mna_trap_fault(void) { - unsigned long g2 = regs->u_regs [UREG_G2]; + struct pt_regs *regs = current_thread_info()->kern_una_regs; + unsigned int insn = current_thread_info()->kern_una_insn; + unsigned long g2 = regs->u_regs[UREG_G2]; unsigned long fixup = search_extables_range(regs->tpc, &g2); if (!fixup) { - unsigned long address = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); + unsigned long address; + + address = compute_effective_address(regs, insn, + ((insn >> 25) & 0x1f)); if (address < PAGE_SIZE) { - printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler"); + printk(KERN_ALERT "Unable to handle kernel NULL " + "pointer dereference in mna handler"); } else - printk(KERN_ALERT "Unable to handle kernel paging request in mna handler"); + printk(KERN_ALERT "Unable to handle kernel paging " + "request in mna handler"); printk(KERN_ALERT " at virtual address %016lx\n",address); - printk(KERN_ALERT "current->{mm,active_mm}->context = %016lx\n", + printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n", (current->mm ? CTX_HWBITS(current->mm->context) : CTX_HWBITS(current->active_mm->context))); - printk(KERN_ALERT "current->{mm,active_mm}->pgd = %016lx\n", + printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n", (current->mm ? (unsigned long) current->mm->pgd : (unsigned long) current->active_mm->pgd)); die_if_kernel("Oops", regs); @@ -400,48 +264,41 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u 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 (!ok_for_kernel(insn) || dir == both) { - printk("Unsupported unaligned load/store trap for kernel at <%016lx>.\n", - regs->tpc); - unaligned_panic("Kernel does fpu/atomic unaligned load/store.", regs); - - __asm__ __volatile__ ("\n" -"kernel_unaligned_trap_fault:\n\t" - "mov %0, %%o0\n\t" - "call kernel_mna_trap_fault\n\t" - " mov %1, %%o1\n\t" - : - : "r" (regs), "r" (insn) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "g4", "g7", "cc"); + printk("Unsupported unaligned load/store trap for kernel " + "at <%016lx>.\n", regs->tpc); + unaligned_panic("Kernel does fpu/atomic " + "unaligned load/store.", regs); + + kernel_mna_trap_fault(); } else { - unsigned long addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); + unsigned long addr; + addr = compute_effective_address(regs, insn, + ((insn >> 25) & 0x1f)); #ifdef DEBUG_MNA - printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] retpc[%016lx]\n", - regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]); + printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] " + "retpc[%016lx]\n", + regs->tpc, dirstrings[dir], addr, size, + regs->u_regs[UREG_RETPC]); #endif switch (dir) { case load: - do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs), - size, (unsigned long *) addr, - decode_signedness(insn), decode_asi(insn, regs), - kernel_unaligned_trap_fault); + do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs), + size, (unsigned long *) addr, + decode_signedness(insn), + decode_asi(insn, regs)); break; case store: - do_integer_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - decode_asi(insn, regs), - kernel_unaligned_trap_fault); - break; -#if 0 /* unsupported */ - case both: - do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs), - (unsigned long *) addr, - kernel_unaligned_trap_fault); + do_int_store(((insn>>25)&0x1f), size, + (unsigned long *) addr, regs, + decode_asi(insn, regs)); break; -#endif + default: panic("Impossible kernel unaligned trap."); /* Not reached... */ diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index b15761ff410..fa25e39fe54 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -492,6 +492,14 @@ void __cpuinit start_secondary(void) */ set_cpu_sibling_map(smp_processor_id()); + /* + * Wait for TSC sync to not schedule things before. + * We still process interrupts, which could see an inconsistent + * time in that window unfortunately. + * Do this here because TSC sync has global unprotected state. + */ + tsc_sync_wait(); + /* * We need to hold call_lock, so there is no inconsistency * between the time smp_call_function() determines number of @@ -509,13 +517,6 @@ void __cpuinit start_secondary(void) per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; unlock_ipi_call_lock(); - mb(); - - /* Wait for TSC sync to not schedule things before. - We still process interrupts, which could see an inconsistent - time in that window unfortunately. */ - tsc_sync_wait(); - cpu_idle(); } diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 493819e543a..ca914c3bd49 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -211,9 +211,7 @@ int unhandled_signal(struct task_struct *tsk, int sig) { if (tsk->pid == 1) return 1; - /* Warn for strace, but not for gdb */ - if (!test_ti_thread_flag(tsk->thread_info, TIF_SYSCALL_TRACE) && - (tsk->ptrace & PT_PTRACED)) + if (tsk->ptrace & PT_PTRACED) return 0; return (tsk->sighand->action[sig-1].sa.sa_handler == SIG_IGN) || (tsk->sighand->action[sig-1].sa.sa_handler == SIG_DFL); diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c index c2c38b57993..d80c323669e 100644 --- a/arch/x86_64/pci/k8-bus.c +++ b/arch/x86_64/pci/k8-bus.c @@ -47,13 +47,22 @@ fill_mp_bus_to_cpumask(void) * if there are no busses hanging off of the current * ldt link then both the secondary and subordinate * bus number fields are set to 0. + * + * RED-PEN + * This is slightly broken because it assumes + * HT node IDs == Linux node ids, which is not always + * true. However it is probably mostly true. */ if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0 && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) { for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus); j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus); - j++) - pci_bus_to_node[j] = NODE_ID(nid); + j++) { + int node = NODE_ID(nid); + if (!node_online(node)) + node = 0; + pci_bus_to_node[j] = node; + } } } } |