diff options
Diffstat (limited to 'arch')
59 files changed, 996 insertions, 648 deletions
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c index f2e81cd7900..6f4388f7c20 100644 --- a/arch/avr32/kernel/ptrace.c +++ b/arch/avr32/kernel/ptrace.c @@ -313,7 +313,7 @@ asmlinkage void do_debug_priv(struct pt_regs *regs) __mtdr(DBGREG_DC, dc); ti = current_thread_info(); - ti->flags |= _TIF_BREAKPOINT; + set_ti_thread_flag(ti, TIF_BREAKPOINT); /* The TLB miss handlers don't check thread flags */ if ((regs->pc >= (unsigned long)&itlb_miss) @@ -328,7 +328,7 @@ asmlinkage void do_debug_priv(struct pt_regs *regs) * single step. */ if ((regs->sr & MODE_MASK) != MODE_SUPERVISOR) - ti->flags |= TIF_SINGLE_STEP; + set_ti_thread_flag(ti, TIF_SINGLE_STEP); } else { panic("Unable to handle debug trap at pc = %08lx\n", regs->pc); diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c index 7e803f4d7a1..adc01a12d15 100644 --- a/arch/avr32/kernel/traps.c +++ b/arch/avr32/kernel/traps.c @@ -49,39 +49,45 @@ out: return; } +static inline int valid_stack_ptr(struct thread_info *tinfo, unsigned long p) +{ + return (p > (unsigned long)tinfo) + && (p < (unsigned long)tinfo + THREAD_SIZE - 3); +} + #ifdef CONFIG_FRAME_POINTER static inline void __show_trace(struct task_struct *tsk, unsigned long *sp, struct pt_regs *regs) { - unsigned long __user *fp; - unsigned long __user *last_fp = NULL; - - if (regs) { - fp = (unsigned long __user *)regs->r7; - } else if (tsk == current) { - register unsigned long __user *real_fp __asm__("r7"); - fp = real_fp; - } else { - fp = (unsigned long __user *)tsk->thread.cpu_context.r7; - } + unsigned long lr, fp; + struct thread_info *tinfo; + + tinfo = (struct thread_info *) + ((unsigned long)sp & ~(THREAD_SIZE - 1)); + + if (regs) + fp = regs->r7; + else if (tsk == current) + asm("mov %0, r7" : "=r"(fp)); + else + fp = tsk->thread.cpu_context.r7; /* - * Walk the stack until (a) we get an exception, (b) the frame - * pointer becomes zero, or (c) the frame pointer gets stuck - * at the same value. + * Walk the stack as long as the frame pointer (a) is within + * the kernel stack of the task, and (b) it doesn't move + * downwards. */ - while (fp && fp != last_fp) { - unsigned long lr, new_fp = 0; - - last_fp = fp; - if (__get_user(lr, fp)) - break; - if (fp && __get_user(new_fp, fp + 1)) - break; - fp = (unsigned long __user *)new_fp; + while (valid_stack_ptr(tinfo, fp)) { + unsigned long new_fp; + lr = *(unsigned long *)fp; printk(" [<%08lx>] ", lr); print_symbol("%s\n", lr); + + new_fp = *(unsigned long *)(fp + 4); + if (new_fp <= fp) + break; + fp = new_fp; } printk("\n"); } diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c index bc235507c5c..472703f90c2 100644 --- a/arch/avr32/mach-at32ap/at32ap7000.c +++ b/arch/avr32/mach-at32ap/at32ap7000.c @@ -752,7 +752,7 @@ static struct resource atmel_spi1_resource[] = { DEFINE_DEV(atmel_spi, 1); DEV_CLK(spi_clk, atmel_spi1, pba, 1); -static void +static void __init at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n, const u8 *pins) { diff --git a/arch/avr32/mm/cache.c b/arch/avr32/mm/cache.c index fb13f72e9a0..8f7b1c3cd0f 100644 --- a/arch/avr32/mm/cache.c +++ b/arch/avr32/mm/cache.c @@ -121,9 +121,8 @@ void flush_icache_range(unsigned long start, unsigned long end) void flush_icache_page(struct vm_area_struct *vma, struct page *page) { if (vma->vm_flags & VM_EXEC) { - void *v = kmap(page); + void *v = page_address(page); __flush_icache_range((unsigned long)v, (unsigned long)v + PAGE_SIZE); - kunmap(v); } } diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index e5eb97a910e..9ea5b8ecc7e 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -1072,7 +1072,28 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = { "ASUS A7V ACPI BIOS Revision 1007"), }, }, - + { + /* + * Latest BIOS for IBM 600E (1.16) has bad pcinum + * for LPC bridge, which is needed for the PCI + * interrupt links to work. DSDT fix is in bug 5966. + * 2645, 2646 model numbers are shared with 600/600E/600X + */ + .callback = disable_acpi_irq, + .ident = "IBM Thinkpad 600 Series 2645", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), + DMI_MATCH(DMI_BOARD_NAME, "2645"), + }, + }, + { + .callback = disable_acpi_irq, + .ident = "IBM Thinkpad 600 Series 2646", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "IBM"), + DMI_MATCH(DMI_BOARD_NAME, "2646"), + }, + }, /* * Boxes that need ACPI PCI IRQ routing and PCI scan disabled */ diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index 9b0dd2744c8..4ff55e67557 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -45,6 +45,7 @@ #include <linux/notifier.h> #include <linux/cpu.h> #include <linux/percpu.h> +#include <linux/nmi.h> #include <linux/delay.h> #include <linux/mc146818rtc.h> @@ -1278,8 +1279,9 @@ void __cpu_die(unsigned int cpu) int __cpuinit __cpu_up(unsigned int cpu) { + unsigned long flags; #ifdef CONFIG_HOTPLUG_CPU - int ret=0; + int ret = 0; /* * We do warm boot only on cpus that had booted earlier @@ -1297,23 +1299,25 @@ int __cpuinit __cpu_up(unsigned int cpu) /* In case one didn't come up */ if (!cpu_isset(cpu, cpu_callin_map)) { printk(KERN_DEBUG "skipping cpu%d, didn't come online\n", cpu); - local_irq_enable(); return -EIO; } - local_irq_enable(); - per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; /* Unleash the CPU! */ cpu_set(cpu, smp_commenced_mask); /* - * Check TSC synchronization with the AP: + * Check TSC synchronization with the AP (keep irqs disabled + * while doing so): */ + local_irq_save(flags); check_tsc_sync_source(cpu); + local_irq_restore(flags); - while (!cpu_isset(cpu, cpu_online_map)) + while (!cpu_isset(cpu, cpu_online_map)) { cpu_relax(); + touch_nmi_watchdog(); + } #ifdef CONFIG_X86_GENERICARCH if (num_online_cpus() > 8 && genapic == &apic_default) diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c index 75a2a2c1225..2236fabbb3c 100644 --- a/arch/ia64/kernel/asm-offsets.c +++ b/arch/ia64/kernel/asm-offsets.c @@ -35,6 +35,7 @@ void foo(void) BLANK(); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); + DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count)); BLANK(); diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 4061593e5b1..49b93682c75 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -971,6 +971,11 @@ efi_memmap_init(unsigned long *s, unsigned long *e) if (!is_memory_available(md)) continue; +#ifdef CONFIG_CRASH_DUMP + /* saved_max_pfn should ignore max_addr= command line arg */ + if (saved_max_pfn < (efi_md_end(md) >> PAGE_SHIFT)) + saved_max_pfn = (efi_md_end(md) >> PAGE_SHIFT); +#endif /* * Round ends inward to granule boundaries * Give trimmings to uncached allocator @@ -1010,11 +1015,6 @@ efi_memmap_init(unsigned long *s, unsigned long *e) } else ae = efi_md_end(md); -#ifdef CONFIG_CRASH_DUMP - /* saved_max_pfn should ignore max_addr= command line arg */ - if (saved_max_pfn < (ae >> PAGE_SHIFT)) - saved_max_pfn = (ae >> PAGE_SHIFT); -#endif /* keep within max_addr= and min_addr= command line arg */ as = max(as, min_addr); ae = min(ae, max_addr); diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S index 7a05b1cb2ad..8589e84a27c 100644 --- a/arch/ia64/kernel/fsys.S +++ b/arch/ia64/kernel/fsys.S @@ -10,6 +10,8 @@ * probably broke it along the way... ;-) * 13-Jul-04 clameter Implement fsys_clock_gettime and revise fsys_gettimeofday to make * it capable of using memory based clocks without falling back to C code. + * 08-Feb-07 Fenghua Yu Implement fsys_getcpu. + * */ #include <asm/asmmacro.h> @@ -505,6 +507,59 @@ EX(.fail_efault, (p15) st8 [r34]=r3) #endif END(fsys_rt_sigprocmask) +/* + * fsys_getcpu doesn't use the third parameter in this implementation. It reads + * current_thread_info()->cpu and corresponding node in cpu_to_node_map. + */ +ENTRY(fsys_getcpu) + .prologue + .altrp b6 + .body + ;; + add r2=TI_FLAGS+IA64_TASK_SIZE,r16 + tnat.nz p6,p0 = r32 // guard against NaT argument + add r3=TI_CPU+IA64_TASK_SIZE,r16 + ;; + ld4 r3=[r3] // M r3 = thread_info->cpu + ld4 r2=[r2] // M r2 = thread_info->flags +(p6) br.cond.spnt.few .fail_einval // B + ;; + tnat.nz p7,p0 = r33 // I guard against NaT argument +(p7) br.cond.spnt.few .fail_einval // B +#ifdef CONFIG_NUMA + movl r17=cpu_to_node_map + ;; +EX(.fail_efault, probe.w.fault r32, 3) // M This takes 5 cycles +EX(.fail_efault, probe.w.fault r33, 3) // M This takes 5 cycles + shladd r18=r3,1,r17 + ;; + ld2 r20=[r18] // r20 = cpu_to_node_map[cpu] + and r2 = TIF_ALLWORK_MASK,r2 + ;; + cmp.ne p8,p0=0,r2 +(p8) br.spnt.many fsys_fallback_syscall + ;; + ;; +EX(.fail_efault, st4 [r32] = r3) +EX(.fail_efault, st2 [r33] = r20) + mov r8=0 + ;; +#else +EX(.fail_efault, probe.w.fault r32, 3) // M This takes 5 cycles +EX(.fail_efault, probe.w.fault r33, 3) // M This takes 5 cycles + and r2 = TIF_ALLWORK_MASK,r2 + ;; + cmp.ne p8,p0=0,r2 +(p8) br.spnt.many fsys_fallback_syscall + ;; +EX(.fail_efault, st4 [r32] = r3) +EX(.fail_efault, st2 [r33] = r0) + mov r8=0 + ;; +#endif + FSYS_RETURN +END(fsys_getcpu) + ENTRY(fsys_fallback_syscall) .prologue .altrp b6 @@ -878,6 +933,56 @@ fsyscall_table: data8 0 // timer_delete data8 0 // clock_settime data8 fsys_clock_gettime // clock_gettime + data8 0 // clock_getres // 1255 + data8 0 // clock_nanosleep + data8 0 // fstatfs64 + data8 0 // statfs64 + data8 0 // mbind + data8 0 // get_mempolicy // 1260 + data8 0 // set_mempolicy + data8 0 // mq_open + data8 0 // mq_unlink + data8 0 // mq_timedsend + data8 0 // mq_timedreceive // 1265 + data8 0 // mq_notify + data8 0 // mq_getsetattr + data8 0 // kexec_load + data8 0 // vserver + data8 0 // waitid // 1270 + data8 0 // add_key + data8 0 // request_key + data8 0 // keyctl + data8 0 // ioprio_set + data8 0 // ioprio_get // 1275 + data8 0 // move_pages + data8 0 // inotify_init + data8 0 // inotify_add_watch + data8 0 // inotify_rm_watch + data8 0 // migrate_pages // 1280 + data8 0 // openat + data8 0 // mkdirat + data8 0 // mknodat + data8 0 // fchownat + data8 0 // futimesat // 1285 + data8 0 // newfstatat + data8 0 // unlinkat + data8 0 // renameat + data8 0 // linkat + data8 0 // symlinkat // 1290 + data8 0 // readlinkat + data8 0 // fchmodat + data8 0 // faccessat + data8 0 + data8 0 // 1295 + data8 0 // unshare + data8 0 // splice + data8 0 // set_robust_list + data8 0 // get_robust_list + data8 0 // sync_file_range // 1300 + data8 0 // tee + data8 0 // vmsplice + data8 0 + data8 fsys_getcpu // getcpu // 1304 // fill in zeros for the remaining entries .zero: diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index d6aab40c641..dcfbf3e7a9e 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -446,7 +446,7 @@ iosapic_end_level_irq (unsigned int irq) #define iosapic_disable_level_irq mask_irq #define iosapic_ack_level_irq nop -struct hw_interrupt_type irq_type_iosapic_level = { +struct irq_chip irq_type_iosapic_level = { .name = "IO-SAPIC-level", .startup = iosapic_startup_level_irq, .shutdown = iosapic_shutdown_level_irq, @@ -454,6 +454,8 @@ struct hw_interrupt_type irq_type_iosapic_level = { .disable = iosapic_disable_level_irq, .ack = iosapic_ack_level_irq, .end = iosapic_end_level_irq, + .mask = mask_irq, + .unmask = unmask_irq, .set_affinity = iosapic_set_affinity }; @@ -493,7 +495,7 @@ iosapic_ack_edge_irq (unsigned int irq) #define iosapic_disable_edge_irq nop #define iosapic_end_edge_irq nop -struct hw_interrupt_type irq_type_iosapic_edge = { +struct irq_chip irq_type_iosapic_edge = { .name = "IO-SAPIC-edge", .startup = iosapic_startup_edge_irq, .shutdown = iosapic_disable_edge_irq, @@ -501,6 +503,8 @@ struct hw_interrupt_type irq_type_iosapic_edge = { .disable = iosapic_disable_edge_irq, .ack = iosapic_ack_edge_irq, .end = iosapic_end_edge_irq, + .mask = mask_irq, + .unmask = unmask_irq, .set_affinity = iosapic_set_affinity }; diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 7d6fe65c93f..339e8a54c2f 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -91,8 +91,6 @@ static struct resource code_resource = { .name = "Kernel code", .flags = IORESOURCE_BUSY | IORESOURCE_MEM }; -extern void efi_initialize_iomem_resources(struct resource *, - struct resource *); extern char _text[], _end[], _etext[]; unsigned long ia64_max_cacheline_size; diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c index 8c331ca6e5c..c6216f454ff 100644 --- a/arch/ia64/sn/kernel/io_acpi_init.c +++ b/arch/ia64/sn/kernel/io_acpi_init.c @@ -53,12 +53,15 @@ sal_ioif_init(u64 *result) } /* - * sn_hubdev_add - The 'add' function of the acpi_sn_hubdev_driver. - * Called for every "SGIHUB" or "SGITIO" device defined - * in the ACPI namespace. + * sn_acpi_hubdev_init() - This function is called by acpi_ns_get_device_callback() + * for all SGIHUB and SGITIO acpi devices defined in the + * DSDT. It obtains the hubdev_info pointer from the + * ACPI vendor resource, which the PROM setup, and sets up the + * hubdev_info in the pda. */ -static int __init -sn_hubdev_add(struct acpi_device *device) + +static acpi_status __init +sn_acpi_hubdev_init(acpi_handle handle, u32 depth, void *context, void **ret) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; u64 addr; @@ -67,18 +70,19 @@ sn_hubdev_add(struct acpi_device *device) int i; u64 nasid; struct acpi_resource *resource; - int ret = 0; acpi_status status; struct acpi_resource_vendor_typed *vendor; extern void sn_common_hubdev_init(struct hubdev_info *); - status = acpi_get_vendor_resource(device->handle, METHOD_NAME__CRS, + status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS, &sn_uuid, &buffer); if (ACPI_FAILURE(status)) { printk(KERN_ERR - "sn_hubdev_add: acpi_get_vendor_resource() failed: %d\n", - status); - return 1; + "sn_acpi_hubdev_init: acpi_get_vendor_resource() " + "(0x%x) failed for: ", status); + acpi_ns_print_node_pathname(handle, NULL); + printk("\n"); + return AE_OK; /* Continue walking namespace */ } resource = buffer.pointer; @@ -86,9 +90,10 @@ sn_hubdev_add(struct acpi_device *device) if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) != sizeof(struct hubdev_info *)) { printk(KERN_ERR - "sn_hubdev_add: Invalid vendor data length: %d\n", + "sn_acpi_hubdev_init: Invalid vendor data length: %d for: ", vendor->byte_length); - ret = 1; + acpi_ns_print_node_pathname(handle, NULL); + printk("\n"); goto exit; } @@ -103,7 +108,7 @@ sn_hubdev_add(struct acpi_device *device) exit: kfree(buffer.pointer); - return ret; + return AE_OK; /* Continue walking namespace */ } /* @@ -441,14 +446,6 @@ sn_acpi_slot_fixup(struct pci_dev *dev) EXPORT_SYMBOL(sn_acpi_slot_fixup); -static struct acpi_driver acpi_sn_hubdev_driver = { - .name = "SGI HUBDEV Driver", - .ids = "SGIHUB,SGITIO", - .ops = { - .add = sn_hubdev_add, - }, -}; - /* * sn_acpi_bus_fixup - Perform SN specific setup of software structs @@ -492,7 +489,10 @@ sn_io_acpi_init(void) /* SN Altix does not follow the IOSAPIC IRQ routing model */ acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM; - acpi_bus_register_driver(&acpi_sn_hubdev_driver); + /* Setup hubdev_info for all SGIHUB/SGITIO devices */ + acpi_get_devices("SGIHUB", sn_acpi_hubdev_init, NULL, NULL); + acpi_get_devices("SGITIO", sn_acpi_hubdev_init, NULL, NULL); + status = sal_ioif_init(&result); if (status || result) panic("sal_ioif_init failed: [%lx] %s\n", diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c index 8c5bee01eaa..8d2a1bfbfe7 100644 --- a/arch/ia64/sn/kernel/irq.c +++ b/arch/ia64/sn/kernel/irq.c @@ -205,7 +205,17 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask) (void)sn_retarget_vector(sn_irq_info, nasid, slice); } -struct hw_interrupt_type irq_type_sn = { +static void +sn_mask_irq(unsigned int irq) +{ +} + +static void +sn_unmask_irq(unsigned int irq) +{ +} + +struct irq_chip irq_type_sn = { .name = "SN hub", .startup = sn_startup_irq, .shutdown = sn_shutdown_irq, @@ -213,6 +223,8 @@ struct hw_interrupt_type irq_type_sn = { .disable = sn_disable_irq, .ack = sn_ack_irq, .end = sn_end_irq, + .mask = sn_mask_irq, + .unmask = sn_unmask_irq, .set_affinity = sn_set_affinity_irq }; diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c index 8571e52c2ef..bd5373d593e 100644 --- a/arch/ia64/sn/kernel/setup.c +++ b/arch/ia64/sn/kernel/setup.c @@ -397,6 +397,8 @@ void __init sn_setup(char **cmdline_p) ia64_sn_set_os_feature(OSF_PCISEGMENT_ENABLE); ia64_sn_set_os_feature(OSF_ACPI_ENABLE); + /* Load the new DSDT and SSDT tables into the global table list. */ + acpi_table_init(); #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) /* diff --git a/arch/mips/arc/init.c b/arch/mips/arc/init.c index 0ac8f42d375..e2f75b13312 100644 --- a/arch/mips/arc/init.c +++ b/arch/mips/arc/init.c @@ -23,16 +23,16 @@ LONG *_prom_argv, *_prom_envp; void __init prom_init(void) { PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK; + romvec = ROMVECTOR; - ULONG cnt; - CHAR c; prom_argc = fw_arg0; _prom_argv = (LONG *) fw_arg1; _prom_envp = (LONG *) fw_arg2; if (pb->magic != 0x53435241) { - printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n", pb->magic); + printk(KERN_CRIT "Aieee, bad prom vector magic %08lx\n", + (unsigned long) pb->magic); while(1) ; } diff --git a/arch/mips/dec/prom/init.c b/arch/mips/dec/prom/init.c index bf2858071f1..a217aafe59f 100644 --- a/arch/mips/dec/prom/init.c +++ b/arch/mips/dec/prom/init.c @@ -103,9 +103,6 @@ void __init prom_init(void) if (prom_is_rex(magic)) rex_clear_cache(); - /* Register the early console. */ - register_prom_console(); - /* Were we compiled with the right CPU option? */ #if defined(CONFIG_CPU_R3000) if ((current_cpu_data.cputype == CPU_R4000SC) || diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 30d433f14f9..1df544c1f96 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -564,49 +564,3 @@ _sys32_clone(nabi_no_regargs struct pt_regs regs) return do_fork(clone_flags, newsp, ®s, 0, parent_tidptr, child_tidptr); } - -/* - * Implement the event wait interface for the eventpoll file. It is the kernel - * part of the user space epoll_pwait(2). - */ -asmlinkage long compat_sys_epoll_pwait(int epfd, - struct epoll_event __user *events, int maxevents, int timeout, - const compat_sigset_t __user *sigmask, size_t sigsetsize) -{ - int error; - sigset_t ksigmask, sigsaved; - - /* - * If the caller wants a certain signal mask to be set during the wait, - * we apply it here. - */ - if (sigmask) { - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - if (!access_ok(VERIFY_READ, sigmask, sizeof(ksigmask))) - return -EFAULT; - if (__copy_conv_sigset_from_user(&ksigmask, sigmask)) - return -EFAULT; - sigdelsetmask(&ksigmask, sigmask(SIGKILL) | sigmask(SIGSTOP)); - sigprocmask(SIG_SETMASK, &ksigmask, &sigsaved); - } - - error = sys_epoll_wait(epfd, events, maxevents, timeout); - - /* - * If we changed the signal mask, we need to restore the original one. - * In case we've got a signal while waiting, we do not restore the - * signal mask yet, and we allow do_signal() to deliver the signal on - * the way back to userspace, before the signal mask is restored. - */ - if (sigmask) { - if (error == -EINTR) { - memcpy(¤t->saved_sigmask, &sigsaved, - sizeof(sigsaved)); - set_thread_flag(TIF_RESTORE_SIGMASK); - } else - sigprocmask(SIG_SETMASK, &sigsaved, NULL); - } - - return error; -} diff --git a/arch/mips/sibyte/Kconfig b/arch/mips/sibyte/Kconfig index 67dac6204b6..bdf24a7b549 100644 --- a/arch/mips/sibyte/Kconfig +++ b/arch/mips/sibyte/Kconfig @@ -1,31 +1,35 @@ config SIBYTE_SB1250 bool select HW_HAS_PCI - select SIBYTE_HAS_LDT + select SIBYTE_ENABLE_LDT_IF_PCI select SIBYTE_SB1xxx_SOC select SYS_SUPPORTS_SMP config SIBYTE_BCM1120 bool select SIBYTE_BCM112X + select SIBYTE_HAS_ZBUS_PROFILING select SIBYTE_SB1xxx_SOC config SIBYTE_BCM1125 bool select HW_HAS_PCI select SIBYTE_BCM112X + select SIBYTE_HAS_ZBUS_PROFILING select SIBYTE_SB1xxx_SOC config SIBYTE_BCM1125H bool select HW_HAS_PCI select SIBYTE_BCM112X - select SIBYTE_HAS_LDT + select SIBYTE_ENABLE_LDT_IF_PCI + select SIBYTE_HAS_ZBUS_PROFILING select SIBYTE_SB1xxx_SOC config SIBYTE_BCM112X bool select SIBYTE_SB1xxx_SOC + select SIBYTE_HAS_ZBUS_PROFILING config SIBYTE_BCM1x80 bool @@ -37,6 +41,7 @@ config SIBYTE_BCM1x55 bool select HW_HAS_PCI select SIBYTE_SB1xxx_SOC + select SIBYTE_HAS_ZBUS_PROFILING select SYS_SUPPORTS_SMP config SIBYTE_SB1xxx_SOC @@ -95,8 +100,10 @@ config CPU_SB1_PASS_2 config SIBYTE_HAS_LDT bool - depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H) - default y + +config SIBYTE_ENABLE_LDT_IF_PCI + bool + select SIBYTE_HAS_LDT if PCI config SIMULATION bool "Running under simulation" @@ -162,5 +169,8 @@ config SIBYTE_SB1250_PROF depends on SIBYTE_SB1xxx_SOC config SIBYTE_TBPROF - bool "Support for ZBbus profiling" - depends on SIBYTE_SB1xxx_SOC + tristate "Support for ZBbus profiling" + depends on SIBYTE_HAS_ZBUS_PROFILING + +config SIBYTE_HAS_ZBUS_PROFILING + bool diff --git a/arch/mips/sibyte/sb1250/bcm1250_tbprof.c b/arch/mips/sibyte/sb1250/bcm1250_tbprof.c index 212547c5731..ea0ca131a3c 100644 --- a/arch/mips/sibyte/sb1250/bcm1250_tbprof.c +++ b/arch/mips/sibyte/sb1250/bcm1250_tbprof.c @@ -1,6 +1,4 @@ /* - * Copyright (C) 2001, 2002, 2003 Broadcom Corporation - * * 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 @@ -14,10 +12,16 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) 2001, 2002, 2003 Broadcom Corporation + * Copyright (C) 2007 Ralf Baechle <ralf@linux-mips.org> + * Copyright (C) 2007 MIPS Technologies, Inc. + * written by Ralf Baechle <ralf@linux-mips.org> */ -#define SBPROF_TB_DEBUG 0 +#undef DEBUG +#include <linux/device.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/types.h> @@ -27,24 +31,98 @@ #include <linux/vmalloc.h> #include <linux/fs.h> #include <linux/errno.h> -#include <linux/reboot.h> -#include <linux/smp_lock.h> +#include <linux/types.h> #include <linux/wait.h> -#include <asm/uaccess.h> + #include <asm/io.h> #include <asm/sibyte/sb1250.h> #include <asm/sibyte/sb1250_regs.h> #include <asm/sibyte/sb1250_scd.h> #include <asm/sibyte/sb1250_int.h> -#include <asm/sibyte/trace_prof.h> +#include <asm/system.h> +#include <asm/uaccess.h> -#define DEVNAME "bcm1250_tbprof" +#define SBPROF_TB_MAJOR 240 + +typedef u64 tb_sample_t[6*256]; + +enum open_status { + SB_CLOSED, + SB_OPENING, + SB_OPEN +}; + +struct sbprof_tb { + wait_queue_head_t tb_sync; + wait_queue_head_t tb_read; + struct mutex lock; + enum open_status open; + tb_sample_t *sbprof_tbbuf; + int next_tb_sample; + + volatile int tb_enable; + volatile int tb_armed; + +}; static struct sbprof_tb sbp; +#define MAX_SAMPLE_BYTES (24*1024*1024) +#define MAX_TBSAMPLE_BYTES (12*1024*1024) + +#define MAX_SAMPLES (MAX_SAMPLE_BYTES/sizeof(u_int32_t)) +#define TB_SAMPLE_SIZE (sizeof(tb_sample_t)) +#define MAX_TB_SAMPLES (MAX_TBSAMPLE_BYTES/TB_SAMPLE_SIZE) + +/* ioctls */ +#define SBPROF_ZBSTART _IOW('s', 0, int) +#define SBPROF_ZBSTOP _IOW('s', 1, int) +#define SBPROF_ZBWAITFULL _IOW('s', 2, int) + +/* + * Routines for using 40-bit SCD cycle counter + * + * Client responsible for either handling interrupts or making sure + * the cycles counter never saturates, e.g., by doing + * zclk_timer_init(0) at least every 2^40 - 1 ZCLKs. + */ + +/* + * Configures SCD counter 0 to count ZCLKs starting from val; + * Configures SCD counters1,2,3 to count nothing. + * Must not be called while gathering ZBbus profiles. + */ + +#define zclk_timer_init(val) \ + __asm__ __volatile__ (".set push;" \ + ".set mips64;" \ + "la $8, 0xb00204c0;" /* SCD perf_cnt_cfg */ \ + "sd %0, 0x10($8);" /* write val to counter0 */ \ + "sd %1, 0($8);" /* config counter0 for zclks*/ \ + ".set pop" \ + : /* no outputs */ \ + /* enable, counter0 */ \ + : /* inputs */ "r"(val), "r" ((1ULL << 33) | 1ULL) \ + : /* modifies */ "$8" ) + + +/* Reads SCD counter 0 and puts result in value + unsigned long long val; */ +#define zclk_get(val) \ + __asm__ __volatile__ (".set push;" \ + ".set mips64;" \ + "la $8, 0xb00204c0;" /* SCD perf_cnt_cfg */ \ + "ld %0, 0x10($8);" /* write val to counter0 */ \ + ".set pop" \ + : /* outputs */ "=r"(val) \ + : /* inputs */ \ + : /* modifies */ "$8" ) + +#define DEVNAME "bcm1250_tbprof" + #define TB_FULL (sbp.next_tb_sample == MAX_TB_SAMPLES) -/************************************************************************ +/* * Support for ZBbus sampling using the trace buffer * * We use the SCD performance counter interrupt, caused by a Zclk counter @@ -54,30 +132,36 @@ static struct sbprof_tb sbp; * overflow. * * We map the interrupt for trace_buffer_freeze to handle it on CPU 0. - * - ************************************************************************/ + */ -static u_int64_t tb_period; +static u64 tb_period; static void arm_tb(void) { - u_int64_t scdperfcnt; - u_int64_t next = (1ULL << 40) - tb_period; - u_int64_t tb_options = M_SCD_TRACE_CFG_FREEZE_FULL; - /* Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to - trigger start of trace. XXX vary sampling period */ + u64 scdperfcnt; + u64 next = (1ULL << 40) - tb_period; + u64 tb_options = M_SCD_TRACE_CFG_FREEZE_FULL; + + /* + * Generate an SCD_PERFCNT interrupt in TB_PERIOD Zclks to trigger + *start of trace. XXX vary sampling period + */ __raw_writeq(0, IOADDR(A_SCD_PERF_CNT_1)); scdperfcnt = __raw_readq(IOADDR(A_SCD_PERF_CNT_CFG)); - /* Unfortunately, in Pass 2 we must clear all counters to knock down - a previous interrupt request. This means that bus profiling - requires ALL of the SCD perf counters. */ + + /* + * Unfortunately, in Pass 2 we must clear all counters to knock down a + * previous interrupt request. This means that bus profiling requires + * ALL of the SCD perf counters. + */ __raw_writeq((scdperfcnt & ~M_SPC_CFG_SRC1) | - // keep counters 0,2,3 as is - M_SPC_CFG_ENABLE | // enable counting - M_SPC_CFG_CLEAR | // clear all counters - V_SPC_CFG_SRC1(1), // counter 1 counts cycles + /* keep counters 0,2,3 as is */ + M_SPC_CFG_ENABLE | /* enable counting */ + M_SPC_CFG_CLEAR | /* clear all counters */ + V_SPC_CFG_SRC1(1), /* counter 1 counts cycles */ IOADDR(A_SCD_PERF_CNT_CFG)); __raw_writeq(next, IOADDR(A_SCD_PERF_CNT_1)); + /* Reset the trace buffer */ __raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG)); #if 0 && defined(M_SCD_TRACE_CFG_FORCECNT) @@ -91,43 +175,45 @@ static void arm_tb(void) static irqreturn_t sbprof_tb_intr(int irq, void *dev_id) { int i; - DBG(printk(DEVNAME ": tb_intr\n")); + + pr_debug(DEVNAME ": tb_intr\n"); + if (sbp.next_tb_sample < MAX_TB_SAMPLES) { /* XXX should use XKPHYS to make writes bypass L2 */ - u_int64_t *p = sbp.sbprof_tbbuf[sbp.next_tb_sample++]; + u64 *p = sbp.sbprof_tbbuf[sbp.next_tb_sample++]; /* Read out trace */ __raw_writeq(M_SCD_TRACE_CFG_START_READ, IOADDR(A_SCD_TRACE_CFG)); __asm__ __volatile__ ("sync" : : : "memory"); /* Loop runs backwards because bundles are read out in reverse order */ for (i = 256 * 6; i > 0; i -= 6) { - // Subscripts decrease to put bundle in the order - // t0 lo, t0 hi, t1 lo, t1 hi, t2 lo, t2 hi + /* Subscripts decrease to put bundle in the order */ + /* t0 lo, t0 hi, t1 lo, t1 hi, t2 lo, t2 hi */ p[i - 1] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t2 hi + /* read t2 hi */ p[i - 2] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t2 lo + /* read t2 lo */ p[i - 3] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t1 hi + /* read t1 hi */ p[i - 4] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t1 lo + /* read t1 lo */ p[i - 5] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t0 hi + /* read t0 hi */ p[i - 6] = __raw_readq(IOADDR(A_SCD_TRACE_READ)); - // read t0 lo + /* read t0 lo */ } if (!sbp.tb_enable) { - DBG(printk(DEVNAME ": tb_intr shutdown\n")); + pr_debug(DEVNAME ": tb_intr shutdown\n"); __raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG)); sbp.tb_armed = 0; wake_up(&sbp.tb_sync); } else { - arm_tb(); // knock down current interrupt and get another one later + arm_tb(); /* knock down current interrupt and get another one later */ } } else { /* No more trace buffer samples */ - DBG(printk(DEVNAME ": tb_intr full\n")); + pr_debug(DEVNAME ": tb_intr full\n"); __raw_writeq(M_SCD_TRACE_CFG_RESET, IOADDR(A_SCD_TRACE_CFG)); sbp.tb_armed = 0; if (!sbp.tb_enable) { @@ -135,6 +221,7 @@ static irqreturn_t sbprof_tb_intr(int irq, void *dev_id) } wake_up(&sbp.tb_read); } + return IRQ_HANDLED; } @@ -144,23 +231,30 @@ static irqreturn_t sbprof_pc_intr(int irq, void *dev_id) return IRQ_NONE; } -int sbprof_zbprof_start(struct file *filp) +/* + * Requires: Already called zclk_timer_init with a value that won't + * saturate 40 bits. No subsequent use of SCD performance counters + * or trace buffer. + */ + +static int sbprof_zbprof_start(struct file *filp) { - u_int64_t scdperfcnt; + u64 scdperfcnt; + int err; - if (sbp.tb_enable) + if (xchg(&sbp.tb_enable, 1)) return -EBUSY; - DBG(printk(DEVNAME ": starting\n")); + pr_debug(DEVNAME ": starting\n"); - sbp.tb_enable = 1; sbp.next_tb_sample = 0; filp->f_pos = 0; - if (request_irq - (K_INT_TRACE_FREEZE, sbprof_tb_intr, 0, DEVNAME " trace freeze", &sbp)) { + err = request_irq(K_INT_TRACE_FREEZE, sbprof_tb_intr, 0, + DEVNAME " trace freeze", &sbp); + if (err) return -EBUSY; - } + /* Make sure there isn't a perf-cnt interrupt waiting */ scdperfcnt = __raw_readq(IOADDR(A_SCD_PERF_CNT_CFG)); /* Disable and clear counters, override SRC_1 */ @@ -168,18 +262,21 @@ int sbprof_zbprof_start(struct file *filp) M_SPC_CFG_ENABLE | M_SPC_CFG_CLEAR | V_SPC_CFG_SRC1(1), IOADDR(A_SCD_PERF_CNT_CFG)); - /* We grab this interrupt to prevent others from trying to use - it, even though we don't want to service the interrupts - (they only feed into the trace-on-interrupt mechanism) */ - if (request_irq - (K_INT_PERF_CNT, sbprof_pc_intr, 0, DEVNAME " scd perfcnt", &sbp)) { - free_irq(K_INT_TRACE_FREEZE, &sbp); - return -EBUSY; - } - - /* I need the core to mask these, but the interrupt mapper to - pass them through. I am exploiting my knowledge that - cp0_status masks out IP[5]. krw */ + /* + * We grab this interrupt to prevent others from trying to use it, even + * though we don't want to service the interrupts (they only feed into + * the trace-on-interrupt mechanism) + */ + err = request_irq(K_INT_PERF_CNT, sbprof_pc_intr, 0, + DEVNAME " scd perfcnt", &sbp); + if (err) + goto out_free_irq; + + /* + * I need the core to mask these, but the interrupt mapper to pass them + * through. I am exploiting my knowledge that cp0_status masks out + * IP[5]. krw + */ __raw_writeq(K_INT_MAP_I3, IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) + (K_INT_PERF_CNT << 3))); @@ -201,7 +298,7 @@ int sbprof_zbprof_start(struct file *filp) __raw_writeq(0, IOADDR(A_ADDR_TRAP_CFG_3)); /* Initialize Trace Event 0-7 */ - // when interrupt + /* when interrupt */ __raw_writeq(M_SCD_TREVT_INTERRUPT, IOADDR(A_SCD_TRACE_EVENT_0)); __raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_1)); __raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_2)); @@ -212,10 +309,10 @@ int sbprof_zbprof_start(struct file *filp) __raw_writeq(0, IOADDR(A_SCD_TRACE_EVENT_7)); /* Initialize Trace Sequence 0-7 */ - // Start on event 0 (interrupt) + /* Start on event 0 (interrupt) */ __raw_writeq(V_SCD_TRSEQ_FUNC_START | 0x0fff, IOADDR(A_SCD_TRACE_SEQUENCE_0)); - // dsamp when d used | asamp when a used + /* dsamp when d used | asamp when a used */ __raw_writeq(M_SCD_TRSEQ_ASAMPLE | M_SCD_TRSEQ_DSAMPLE | K_SCD_TRSEQ_TRIGGER_ALL, IOADDR(A_SCD_TRACE_SEQUENCE_1)); @@ -232,33 +329,41 @@ int sbprof_zbprof_start(struct file *filp) arm_tb(); - DBG(printk(DEVNAME ": done starting\n")); + pr_debug(DEVNAME ": done starting\n"); return 0; + +out_free_irq: + free_irq(K_INT_TRACE_FREEZE, &sbp); + + return err; } -int sbprof_zbprof_stop(void) +static int sbprof_zbprof_stop(void) { - DEFINE_WAIT(wait); - DBG(printk(DEVNAME ": stopping\n")); + int err; + + pr_debug(DEVNAME ": stopping\n"); if (sbp.tb_enable) { + /* + * XXXKW there is a window here where the intr handler may run, + * see the disable, and do the wake_up before this sleep + * happens. + */ + pr_debug(DEVNAME ": wait for disarm\n"); + err = wait_event_interruptible(sbp.tb_sync, !sbp.tb_armed); + pr_debug(DEVNAME ": disarm complete, stat %d\n", err); + + if (err) + return err; + sbp.tb_enable = 0; - /* XXXKW there is a window here where the intr handler - may run, see the disable, and do the wake_up before - this sleep happens. */ - if (sbp.tb_armed) { - DBG(printk(DEVNAME ": wait for disarm\n")); - prepare_to_wait(&sbp.tb_sync, &wait, TASK_INTERRUPTIBLE); - schedule(); - finish_wait(&sbp.tb_sync, &wait); - DBG(printk(DEVNAME ": disarm complete\n")); - } free_irq(K_INT_TRACE_FREEZE, &sbp); free_irq(K_INT_PERF_CNT, &sbp); } - DBG(printk(DEVNAME ": done stopping\n")); + pr_debug(DEVNAME ": done stopping\n"); return 0; } @@ -268,42 +373,45 @@ static int sbprof_tb_open(struct inode *inode, struct file *filp) int minor; minor = iminor(inode); - if (minor != 0) { + if (minor != 0) return -ENODEV; - } - if (sbp.open) { + + if (xchg(&sbp.open, SB_OPENING) != SB_CLOSED) return -EBUSY; - } memset(&sbp, 0, sizeof(struct sbprof_tb)); + sbp.sbprof_tbbuf = vmalloc(MAX_TBSAMPLE_BYTES); - if (!sbp.sbprof_tbbuf) { + if (!sbp.sbprof_tbbuf) return -ENOMEM; - } + memset(sbp.sbprof_tbbuf, 0, MAX_TBSAMPLE_BYTES); init_waitqueue_head(&sbp.tb_sync); init_waitqueue_head(&sbp.tb_read); - sbp.open = 1; + mutex_init(&sbp.lock); + + sbp.open = SB_OPEN; return 0; } static int sbprof_tb_release(struct inode *inode, struct file *filp) { - int minor; + int minor = iminor(inode); - minor = iminor(inode); - if (minor != 0 || !sbp.open) { + if (minor != 0 || !sbp.open) return -ENODEV; - } - if (sbp.tb_armed || sbp.tb_enable) { + mutex_lock(&sbp.lock); + + if (sbp.tb_armed || sbp.tb_enable) sbprof_zbprof_stop(); - } vfree(sbp.sbprof_tbbuf); sbp.open = 0; + mutex_unlock(&sbp.lock); + return 0; } @@ -311,21 +419,35 @@ static ssize_t sbprof_tb_read(struct file *filp, char *buf, size_t size, loff_t *offp) { int cur_sample, sample_off, cur_count, sample_left; - char *src; - int count = 0; - char *dest = buf; long cur_off = *offp; + char *dest = buf; + int count = 0; + char *src; + + if (!access_ok(VERIFY_WRITE, buf, size)) + return -EFAULT; + + mutex_lock(&sbp.lock); count = 0; cur_sample = cur_off / TB_SAMPLE_SIZE; sample_off = cur_off % TB_SAMPLE_SIZE; sample_left = TB_SAMPLE_SIZE - sample_off; + while (size && (cur_sample < sbp.next_tb_sample)) { + int err; + cur_count = size < sample_left ? size : sample_left; src = (char *)(((long)sbp.sbprof_tbbuf[cur_sample])+sample_off); - copy_to_user(dest, src, cur_count); - DBG(printk(DEVNAME ": read from sample %d, %d bytes\n", - cur_sample, cur_count)); + err = __copy_to_user(dest, src, cur_count); + if (err) { + *offp = cur_off + cur_count - err; + mutex_unlock(&sbp.lock); + return err; + } + + pr_debug(DEVNAME ": read from sample %d, %d bytes\n", + cur_sample, cur_count); size -= cur_count; sample_left -= cur_count; if (!sample_left) { @@ -339,37 +461,43 @@ static ssize_t sbprof_tb_read(struct file *filp, char *buf, dest += cur_count; count += cur_count; } + *offp = cur_off; + mutex_unlock(&sbp.lock); return count; } -static long sbprof_tb_ioctl(struct file *filp, - unsigned int command, - unsigned long arg) +static long sbprof_tb_ioctl(struct file *filp, unsigned int command, + unsigned long arg) { int error = 0; - lock_kernel(); switch (command) { case SBPROF_ZBSTART: + mutex_lock(&sbp.lock); error = sbprof_zbprof_start(filp); + mutex_unlock(&sbp.lock); break; + case SBPROF_ZBSTOP: + mutex_lock(&sbp.lock); error = sbprof_zbprof_stop(); + mutex_unlock(&sbp.lock); break; + case SBPROF_ZBWAITFULL: - DEFINE_WAIT(wait); - prepare_to_wait(&sbp.tb_read, &wait, TASK_INTERRUPTIBLE); - schedule(); - finish_wait(&sbp.tb_read, &wait); - /* XXXKW check if interrupted? */ - return put_user(TB_FULL, (int *) arg); + error = wait_event_interruptible(sbp.tb_read, TB_FULL); + if (error) + break; + + error = put_user(TB_FULL, (int *) arg); + break; + default: error = -EINVAL; break; } - unlock_kernel(); return error; } @@ -384,23 +512,60 @@ static const struct file_operations sbprof_tb_fops = { .mmap = NULL, }; +static struct class *tb_class; +static struct device *tb_dev; + static int __init sbprof_tb_init(void) { + struct device *dev; + struct class *tbc; + int err; + if (register_chrdev(SBPROF_TB_MAJOR, DEVNAME, &sbprof_tb_fops)) { printk(KERN_WARNING DEVNAME ": initialization failed (dev %d)\n", SBPROF_TB_MAJOR); return -EIO; } + + tbc = class_create(THIS_MODULE, "sb_tracebuffer"); + if (IS_ERR(tbc)) { + err = PTR_ERR(tbc); + goto out_chrdev; + } + + tb_class = tbc; + + dev = device_create(tbc, NULL, MKDEV(SBPROF_TB_MAJOR, 0), "tb"); + if (IS_ERR(dev)) { + err = PTR_ERR(dev); + goto out_class; + } + tb_dev = dev; + sbp.open = 0; tb_period = zbbus_mhz * 10000LL; - printk(KERN_INFO DEVNAME ": initialized - tb_period = %lld\n", tb_period); + pr_info(DEVNAME ": initialized - tb_period = %lld\n", tb_period); + return 0; + +out_class: + class_destroy(tb_class); +out_chrdev: + unregister_chrdev(SBPROF_TB_MAJOR, DEVNAME); + + return err; } static void __exit sbprof_tb_cleanup(void) { + device_destroy(tb_class, MKDEV(SBPROF_TB_MAJOR, 0)); unregister_chrdev(SBPROF_TB_MAJOR, DEVNAME); + class_destroy(tb_class); } module_init(sbprof_tb_init); module_exit(sbprof_tb_cleanup); + +MODULE_ALIAS_CHARDEV_MAJOR(SBPROF_TB_MAJOR); +MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>"); +MODULE_LICENSE("GPL"); diff --git a/arch/mips/sibyte/sb1250/setup.c b/arch/mips/sibyte/sb1250/setup.c index 1cb042eab72..87188f0f6fb 100644 --- a/arch/mips/sibyte/sb1250/setup.c +++ b/arch/mips/sibyte/sb1250/setup.c @@ -16,6 +16,7 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/init.h> +#include <linux/module.h> #include <linux/kernel.h> #include <linux/reboot.h> #include <linux/string.h> @@ -32,6 +33,7 @@ unsigned int soc_pass; unsigned int soc_type; unsigned int periph_rev; unsigned int zbbus_mhz; +EXPORT_SYMBOL(zbbus_mhz); static char *soc_str; static char *pass_str; diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 7ec4ac77c0f..e4006dc087c 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -225,6 +225,22 @@ static struct cpu_spec cpu_specs[] = { .oprofile_type = PPC_OPROFILE_POWER4, .platform = "ppc970", }, + { /* PPC970MP DD1.0 - no DEEPNAP, use regular 970 init */ + .pvr_mask = 0xffffffff, + .pvr_value = 0x00440100, + .cpu_name = "PPC970MP", + .cpu_features = CPU_FTRS_PPC970, + .cpu_user_features = COMMON_USER_POWER4 | + PPC_FEATURE_HAS_ALTIVEC_COMP, + .icache_bsize = 128, + .dcache_bsize = 128, + .num_pmcs = 8, + .cpu_setup = __setup_cpu_ppc970, + .cpu_restore = __restore_cpu_ppc970, + .oprofile_cpu_type = "ppc64/970MP", + .oprofile_type = PPC_OPROFILE_POWER4, + .platform = "ppc970", + }, { /* PPC970MP */ .pvr_mask = 0xffff0000, .pvr_value = 0x00440000, diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index ea6fd552c7e..91b443c9a48 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -916,7 +916,7 @@ EXPORT_SYMBOL_GPL(of_irq_map_raw); static int of_irq_map_oldworld(struct device_node *device, int index, struct of_irq *out_irq) { - const u32 *ints; + const u32 *ints = NULL; int intlen; /* diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c index e5d81916687..8aa9a93e2aa 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c @@ -55,9 +55,9 @@ static int mpc834x_usb_cfg(void) struct device_node *np = NULL; int port0_is_dr = 0; - if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL) + if ((np = of_find_compatible_node(NULL, "usb", "fsl-usb2-dr")) != NULL) port0_is_dr = 1; - if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL){ + if ((np = of_find_compatible_node(NULL, "usb", "fsl-usb2-mph")) != NULL){ if (port0_is_dr) { printk(KERN_WARNING "There is only one USB port on PB board! \n"); @@ -103,8 +103,8 @@ static int mpc834x_usb_cfg(void) return -1; /* - * if MDS board is plug into PIB board, - * force to use the PHY on MDS board + * if Processor Board is plugged into PIB board, + * force to use the PHY on Processor Board */ bcsr5 = in_8(bcsr_regs + 5); if (!(bcsr5 & BCSR5_INT_USB)) diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index eb661ccf2da..e764c0aced8 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -47,6 +47,7 @@ config MPC85xx bool select PPC_UDBG_16550 select PPC_INDIRECT_PCI + select SERIAL_8250_SHARE_IRQ if SERIAL_8250 default y if MPC8540_ADS || MPC85xx_CDS || MPC8560_ADS || MPC85xx_MDS config PPC_INDIRECT_PCI_BE diff --git a/arch/powerpc/platforms/celleb/scc_epci.c b/arch/powerpc/platforms/celleb/scc_epci.c index c11b39c3776..fb23d53eb09 100644 --- a/arch/powerpc/platforms/celleb/scc_epci.c +++ b/arch/powerpc/platforms/celleb/scc_epci.c @@ -43,11 +43,34 @@ #define iob() __asm__ __volatile__("eieio; sync":::"memory") +static inline volatile void __iomem *celleb_epci_get_epci_base( + struct pci_controller *hose) +{ + /* + * Note: + * Celleb epci uses cfg_addr as a base address for + * epci control registers. + */ + + return hose->cfg_addr; +} + +static inline volatile void __iomem *celleb_epci_get_epci_cfg( + struct pci_controller *hose) +{ + /* + * Note: + * Celleb epci uses cfg_data as a base address for + * configuration area for epci devices. + */ + + return hose->cfg_data; +} #if 0 /* test code for epci dummy read */ static void celleb_epci_dummy_read(struct pci_dev *dev) { - void __iomem *epci_base; + volatile void __iomem *epci_base; struct device_node *node; struct pci_controller *hose; u32 val; @@ -58,7 +81,7 @@ static void celleb_epci_dummy_read(struct pci_dev *dev) if (!hose) return; - epci_base = hose->cfg_addr; + epci_base = celleb_epci_get_epci_base(hose); val = in_be32(epci_base + SCC_EPCI_WATRP); iosync(); @@ -70,19 +93,20 @@ static void celleb_epci_dummy_read(struct pci_dev *dev) static inline void clear_and_disable_master_abort_interrupt( struct pci_controller *hose) { - void __iomem *addr; - addr = hose->cfg_addr + PCI_COMMAND; - out_be32(addr, in_be32(addr) | (PCI_STATUS_REC_MASTER_ABORT << 16)); + volatile void __iomem *epci_base, *reg; + epci_base = celleb_epci_get_epci_base(hose); + reg = epci_base + PCI_COMMAND; + out_be32(reg, in_be32(reg) | (PCI_STATUS_REC_MASTER_ABORT << 16)); } static int celleb_epci_check_abort(struct pci_controller *hose, - void __iomem *addr) + volatile void __iomem *addr) { - void __iomem *reg, *epci_base; + volatile void __iomem *reg, *epci_base; u32 val; iob(); - epci_base = hose->cfg_addr; + epci_base = celleb_epci_get_epci_base(hose); reg = epci_base + PCI_COMMAND; val = in_be32(reg); @@ -108,20 +132,21 @@ static int celleb_epci_check_abort(struct pci_controller *hose, return PCIBIOS_SUCCESSFUL; } -static void __iomem *celleb_epci_make_config_addr(struct pci_controller *hose, +static volatile void __iomem *celleb_epci_make_config_addr( + struct pci_controller *hose, unsigned int devfn, int where) { - void __iomem *addr; + volatile void __iomem *addr; struct pci_bus *bus = hose->bus; if (bus->self) - addr = hose->cfg_data + + addr = celleb_epci_get_epci_cfg(hose) + (((bus->number & 0xff) << 16) | ((devfn & 0xff) << 8) | (where & 0xff) | 0x01000000); else - addr = hose->cfg_data + + addr = celleb_epci_get_epci_cfg(hose) + (((devfn & 0xff) << 8) | (where & 0xff)); pr_debug("EPCI: config_addr = 0x%p\n", addr); @@ -132,7 +157,7 @@ static void __iomem *celleb_epci_make_config_addr(struct pci_controller *hose, static int celleb_epci_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val) { - void __iomem *addr; + volatile void __iomem *epci_base, *addr; struct device_node *node; struct pci_controller *hose; @@ -142,13 +167,14 @@ static int celleb_epci_read_config(struct pci_bus *bus, node = (struct device_node *)bus->sysdata; hose = pci_find_hose_for_OF_device(node); - if (!hose->cfg_data) + if (!celleb_epci_get_epci_cfg(hose)) return PCIBIOS_DEVICE_NOT_FOUND; if (bus->number == hose->first_busno && devfn == 0) { /* EPCI controller self */ - addr = hose->cfg_addr + where; + epci_base = celleb_epci_get_epci_base(hose); + addr = epci_base + where; switch (size) { case 1: @@ -185,7 +211,7 @@ static int celleb_epci_read_config(struct pci_bus *bus, } pr_debug("EPCI: " - "addr=0x%lx, devfn=0x%x, where=0x%x, size=0x%x, val=0x%x\n", + "addr=0x%p, devfn=0x%x, where=0x%x, size=0x%x, val=0x%x\n", addr, devfn, where, size, *val); return celleb_epci_check_abort(hose, NULL); @@ -194,7 +220,7 @@ static int celleb_epci_read_config(struct pci_bus *bus, static int celleb_epci_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { - void __iomem *addr; + volatile void __iomem *epci_base, *addr; struct device_node *node; struct pci_controller *hose; @@ -204,13 +230,15 @@ static int celleb_epci_write_config(struct pci_bus *bus, node = (struct device_node *)bus->sysdata; hose = pci_find_hose_for_OF_device(node); - if (!hose->cfg_data) + + if (!celleb_epci_get_epci_cfg(hose)) return PCIBIOS_DEVICE_NOT_FOUND; if (bus->number == hose->first_busno && devfn == 0) { /* EPCI controller self */ - addr = hose->cfg_addr + where; + epci_base = celleb_epci_get_epci_base(hose); + addr = epci_base + where; switch (size) { case 1: @@ -258,10 +286,10 @@ struct pci_ops celleb_epci_ops = { static int __devinit celleb_epci_init(struct pci_controller *hose) { u32 val; - void __iomem *reg, *epci_base; + volatile void __iomem *reg, *epci_base; int hwres = 0; - epci_base = hose->cfg_addr; + epci_base = celleb_epci_get_epci_base(hose); /* PCI core reset(Internal bus and PCI clock) */ reg = epci_base + SCC_EPCI_CKCTRL; @@ -382,6 +410,18 @@ int __devinit celleb_setup_epci(struct device_node *node, pr_debug("PCI: celleb_setup_epci()\n"); + /* + * Note: + * Celleb epci uses cfg_addr and cfg_data member of + * pci_controller structure in irregular way. + * + * cfg_addr is used to map for control registers of + * celleb epci. + * + * cfg_data is used for configuration area of devices + * on Celleb epci buses. + */ + if (of_address_to_resource(node, 0, &r)) goto error; hose->cfg_addr = ioremap(r.start, (r.end - r.start + 1)); diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig index 886c522d78e..3410bcbc9db 100644 --- a/arch/powerpc/platforms/embedded6xx/Kconfig +++ b/arch/powerpc/platforms/embedded6xx/Kconfig @@ -79,6 +79,7 @@ config LINKSTATION select MPIC select FSL_SOC select PPC_UDBG_16550 if SERIAL_8250 + select DEFAULT_UIMAGE help Select LINKSTATION if configuring for one of PPC- (MPC8241) based NAS systems from Buffalo Technology. So far only diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index c29a6a064d2..24cc50c1774 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -810,6 +810,7 @@ core99_ata100_enable(struct device_node *node, long value) unsigned long flags; struct pci_dev *pdev = NULL; u8 pbus, pid; + int rc; if (uninorth_rev < 0x24) return -ENODEV; @@ -828,7 +829,9 @@ core99_ata100_enable(struct device_node *node, long value) pdev = pci_find_slot(pbus, pid); if (pdev == NULL) return 0; - pci_enable_device(pdev); + rc = pci_enable_device(pdev); + if (rc) + return rc; pci_set_master(pdev); } return 0; diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index f42475b27c1..6fbac308ded 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -1191,8 +1191,11 @@ void __init pmac_pcibios_after_init(void) * -- BenH */ for_each_pci_dev(dev) { - if ((dev->class >> 16) == PCI_BASE_CLASS_STORAGE) - pci_enable_device(dev); + if ((dev->class >> 16) != PCI_BASE_CLASS_STORAGE) + continue; + if (pci_enable_device(dev)) + printk(KERN_WARNING + "pci: Failed to enable %s\n", pci_name(dev)); } #endif /* CONFIG_BLK_DEV_IDE */ diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 0183e5fbaf4..bf299b66f3f 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -218,7 +218,7 @@ Commands:\n\ " ss stop execution on all spus\n\ sr restore execution on stopped spus\n\ sf # dump spu fields for spu # (in hex)\n\ - sd # dump spu local store for spu # (in hex)\ + sd # dump spu local store for spu # (in hex)\n\ sdi # disassemble spu local store for spu # (in hex)\n" #endif " S print special registers\n\ diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile index 3c93012e91a..ed5f5a9a3b3 100644 --- a/arch/sh/boards/renesas/r7780rp/Makefile +++ b/arch/sh/boards/renesas/r7780rp/Makefile @@ -2,6 +2,6 @@ # Makefile for the R7780RP-1 specific parts of the kernel # -obj-y := setup.o io.o irq.o +obj-y := setup.o irq.o obj-$(CONFIG_PUSH_SWITCH) += psw.o diff --git a/arch/sh/boards/renesas/r7780rp/io.c b/arch/sh/boards/renesas/r7780rp/io.c deleted file mode 100644 index f74d2ffb385..00000000000 --- a/arch/sh/boards/renesas/r7780rp/io.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * Copyright (C) 2001 Ian da Silva, Jeremy Siegel - * Based largely on io_se.c. - * - * I/O routine for Renesas Solutions Highlander R7780RP-1 - * - * Initial version only to support LAN access; some - * placeholder code from io_r7780rp.c left in with the - * expectation of later SuperIO and PCMCIA access. - */ -#include <linux/pci.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/io.h> -#include <asm/r7780rp.h> -#include <asm/addrspace.h> - -static inline unsigned long port88796l(unsigned int port, int flag) -{ - unsigned long addr; - - if (flag) - addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1); - else - addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000; - - return addr; -} - -#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) -#define CHECK_AX88796L_PORT(port) \ - ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) -#else -#define CHECK_AX88796L_PORT(port) (0) -#endif - -/* - * General outline: remap really low stuff [eventually] to SuperIO, - * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) - * is mapped through the PCI IO window. Stuff with high bits (PXSEG) - * should be way beyond the window, and is used w/o translation for - * compatibility. - */ -u8 r7780rp_inb(unsigned long port) -{ - if (CHECK_AX88796L_PORT(port)) - return ctrl_inw(port88796l(port, 0)) & 0xff; - else if (is_pci_ioaddr(port)) - return ctrl_inb(pci_ioaddr(port)); - - return ctrl_inw(port) & 0xff; -} - -u8 r7780rp_inb_p(unsigned long port) -{ - u8 v; - - if (CHECK_AX88796L_PORT(port)) - v = ctrl_inw(port88796l(port, 0)) & 0xff; - else if (is_pci_ioaddr(port)) - v = ctrl_inb(pci_ioaddr(port)); - else - v = ctrl_inw(port) & 0xff; - - ctrl_delay(); - - return v; -} - -u16 r7780rp_inw(unsigned long port) -{ - if (is_pci_ioaddr(port)) - return ctrl_inw(pci_ioaddr(port)); - - return ctrl_inw(port); -} - -u32 r7780rp_inl(unsigned long port) -{ - if (is_pci_ioaddr(port)) - return ctrl_inl(pci_ioaddr(port)); - - return ctrl_inl(port); -} - -void r7780rp_outb(u8 value, unsigned long port) -{ - if (CHECK_AX88796L_PORT(port)) - ctrl_outw(value, port88796l(port, 0)); - else if (is_pci_ioaddr(port)) - ctrl_outb(value, pci_ioaddr(port)); - else - ctrl_outb(value, port); -} - -void r7780rp_outb_p(u8 value, unsigned long port) -{ - if (CHECK_AX88796L_PORT(port)) - ctrl_outw(value, port88796l(port, 0)); - else if (is_pci_ioaddr(port)) - ctrl_outb(value, pci_ioaddr(port)); - else - ctrl_outb(value, port); - - ctrl_delay(); -} - -void r7780rp_outw(u16 value, unsigned long port) -{ - if (is_pci_ioaddr(port)) - ctrl_outw(value, pci_ioaddr(port)); - else - ctrl_outw(value, port); -} - -void r7780rp_outl(u32 value, unsigned long port) -{ - if (is_pci_ioaddr(port)) - ctrl_outl(value, pci_ioaddr(port)); - else - ctrl_outl(value, port); -} - -void r7780rp_insb(unsigned long port, void *dst, unsigned long count) -{ - volatile u16 *p; - u8 *buf = dst; - - if (CHECK_AX88796L_PORT(port)) { - p = (volatile u16 *)port88796l(port, 0); - while (count--) - *buf++ = *p & 0xff; - } else if (is_pci_ioaddr(port)) { - volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - - while (count--) - *buf++ = *bp; - } else { - p = (volatile u16 *)port; - while (count--) - *buf++ = *p & 0xff; - } -} - -void r7780rp_insw(unsigned long port, void *dst, unsigned long count) -{ - volatile u16 *p; - u16 *buf = dst; - - if (CHECK_AX88796L_PORT(port)) - p = (volatile u16 *)port88796l(port, 1); - else if (is_pci_ioaddr(port)) - p = (volatile u16 *)pci_ioaddr(port); - else - p = (volatile u16 *)port; - - while (count--) - *buf++ = *p; - - flush_dcache_all(); -} - -void r7780rp_insl(unsigned long port, void *dst, unsigned long count) -{ - if (is_pci_ioaddr(port)) { - volatile u32 *p = (volatile u32 *)pci_ioaddr(port); - u32 *buf = dst; - - while (count--) - *buf++ = *p; - } -} - -void r7780rp_outsb(unsigned long port, const void *src, unsigned long count) -{ - volatile u16 *p; - const u8 *buf = src; - - if (CHECK_AX88796L_PORT(port)) { - p = (volatile u16 *)port88796l(port, 0); - while (count--) - *p = *buf++; - } else if (is_pci_ioaddr(port)) { - volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - - while (count--) - *bp = *buf++; - } else - while (count--) - ctrl_outb(*buf++, port); -} - -void r7780rp_outsw(unsigned long port, const void *src, unsigned long count) -{ - volatile u16 *p; - const u16 *buf = src; - - if (CHECK_AX88796L_PORT(port)) - p = (volatile u16 *)port88796l(port, 1); - else if (is_pci_ioaddr(port)) - p = (volatile u16 *)pci_ioaddr(port); - else - p = (volatile u16 *)port; - - while (count--) - *p = *buf++; - - flush_dcache_all(); -} - -void r7780rp_outsl(unsigned long port, const void *src, unsigned long count) -{ - const u32 *buf = src; - u32 *p; - - if (is_pci_ioaddr(port)) - p = (u32 *)pci_ioaddr(port); - else - p = (u32 *)port; - - while (count--) - ctrl_outl(*buf++, (unsigned long)p); -} - -void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size) -{ - if (CHECK_AX88796L_PORT(port)) - return (void __iomem *)port88796l(port, size > 1); - else if (is_pci_ioaddr(port)) - return (void __iomem *)pci_ioaddr(port); - - return (void __iomem *)port; -} diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c index 0d74db9f179..2faba6679e6 100644 --- a/arch/sh/boards/renesas/r7780rp/setup.c +++ b/arch/sh/boards/renesas/r7780rp/setup.c @@ -187,31 +187,7 @@ static void __init r7780rp_setup(char **cmdline_p) struct sh_machine_vector mv_r7780rp __initmv = { .mv_name = "Highlander R7780RP-1", .mv_setup = r7780rp_setup, - .mv_nr_irqs = 109, - - .mv_inb = r7780rp_inb, - .mv_inw = r7780rp_inw, - .mv_inl = r7780rp_inl, - .mv_outb = r7780rp_outb, - .mv_outw = r7780rp_outw, - .mv_outl = r7780rp_outl, - - .mv_inb_p = r7780rp_inb_p, - .mv_inw_p = r7780rp_inw, - .mv_inl_p = r7780rp_inl, - .mv_outb_p = r7780rp_outb_p, - .mv_outw_p = r7780rp_outw, - .mv_outl_p = r7780rp_outl, - - .mv_insb = r7780rp_insb, - .mv_insw = r7780rp_insw, - .mv_insl = r7780rp_insl, - .mv_outsb = r7780rp_outsb, - .mv_outsw = r7780rp_outsw, - .mv_outsl = r7780rp_outsl, - - .mv_ioport_map = r7780rp_ioport_map, .mv_init_irq = init_r7780rp_IRQ, }; ALIAS_MV(r7780rp) diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index 44b42082a0a..593f26a85e9 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c @@ -12,6 +12,7 @@ #include <linux/platform_device.h> #include <linux/pata_platform.h> #include <linux/serial_8250.h> +#include <linux/sm501.h> #include <linux/pm.h> #include <asm/machvec.h> #include <asm/rts7751r2d.h> @@ -111,10 +112,35 @@ static struct platform_device heartbeat_device = { .resource = heartbeat_resources, }; +static struct resource sm501_resources[] = { + [0] = { + .start = 0x10000000, + .end = 0x13e00000 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 0x13e00000, + .end = 0x13ffffff, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = 32, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device sm501_device = { + .name = "sm501", + .id = -1, + .num_resources = ARRAY_SIZE(sm501_resources), + .resource = sm501_resources, +}; + static struct platform_device *rts7751r2d_devices[] __initdata = { &uart_device, &heartbeat_device, &cf_ide_device, + &sm501_device, }; static int __init rts7751r2d_devices_setup(void) diff --git a/arch/sh/configs/rts7751r2d_defconfig b/arch/sh/configs/rts7751r2d_defconfig index db6a02df5af..a59bb78bd07 100644 --- a/arch/sh/configs/rts7751r2d_defconfig +++ b/arch/sh/configs/rts7751r2d_defconfig @@ -1,14 +1,13 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.20 -# Thu Feb 15 17:17:29 2007 +# Linux kernel version: 2.6.21-rc1 +# Thu Mar 1 16:42:40 2007 # CONFIG_SUPERH=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_CALIBRATE_DELAY=y # CONFIG_GENERIC_TIME is not set @@ -33,6 +32,7 @@ CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y # CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set @@ -119,7 +119,6 @@ CONFIG_SH_RTS7751R2D=y # CONFIG_SH_SHMIN is not set # CONFIG_SH_7206_SOLUTION_ENGINE is not set # CONFIG_SH_7619_SOLUTION_ENGINE is not set -# CONFIG_SH_ASDAP310 is not set # CONFIG_SH_UNKNOWN is not set # @@ -281,7 +280,7 @@ CONFIG_ZERO_PAGE_OFFSET=0x00010000 CONFIG_BOOT_LINK_OFFSET=0x00800000 # CONFIG_UBC_WAKEUP is not set CONFIG_CMDLINE_BOOL=y -CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda1" +CONFIG_CMDLINE="console=tty0 console=ttySC0,115200 root=/dev/sda1" # # Bus options @@ -433,6 +432,7 @@ CONFIG_FW_LOADER=m # # Plug and Play support # +# CONFIG_PNPACPI is not set # # Block devices @@ -770,7 +770,26 @@ CONFIG_NET_WIRELESS=y # # Input device support # -# CONFIG_INPUT is not set +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# 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 @@ -781,7 +800,10 @@ CONFIG_NET_WIRELESS=y # # Character devices # -# CONFIG_VT is not set +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +CONFIG_VT_HW_CONSOLE_BINDING=y # CONFIG_SERIAL_NONSTANDARD is not set # @@ -857,6 +879,11 @@ CONFIG_HWMON=y # CONFIG_HWMON_DEBUG_CHIP is not set # +# Multifunction device drivers +# +CONFIG_MFD_SM501=y + +# # Multimedia devices # # CONFIG_VIDEO_DEV is not set @@ -869,9 +896,66 @@ CONFIG_HWMON=y # # Graphics support # -CONFIG_FIRMWARE_EDID=y -# CONFIG_FB is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frambuffer hardware drivers +# +# CONFIG_FB_CIRRUS is not set +# CONFIG_FB_PM2 is not set +# CONFIG_FB_CYBER2000 is not set +# CONFIG_FB_ASILIANT is not set +# CONFIG_FB_IMSTT is not set +# CONFIG_FB_EPSON1355 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_NVIDIA is not set +# CONFIG_FB_RIVA is not set +# CONFIG_FB_MATROX is not set +# CONFIG_FB_RADEON is not set +# CONFIG_FB_ATY128 is not set +# CONFIG_FB_ATY is not set +# CONFIG_FB_S3 is not set +# CONFIG_FB_SAVAGE is not set +# CONFIG_FB_SIS is not set +# CONFIG_FB_NEOMAGIC is not set +# CONFIG_FB_KYRO is not set +# CONFIG_FB_3DFX is not set +# CONFIG_FB_VOODOO1 is not set +# CONFIG_FB_TRIDENT is not set +CONFIG_FB_SM501=y +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y + +# +# Logo configuration +# +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +# CONFIG_LOGO_LINUX_CLUT224 is not set +# CONFIG_LOGO_SUPERH_MONO is not set +# CONFIG_LOGO_SUPERH_VGA16 is not set +CONFIG_LOGO_SUPERH_CLUT224=y # # Sound @@ -985,6 +1069,12 @@ CONFIG_SOUND_PRIME=m CONFIG_AC97_BUS=m # +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# # USB support # CONFIG_USB_ARCH_HAS_HCD=y @@ -1237,7 +1327,7 @@ CONFIG_LOG_BUF_SHIFT=14 CONFIG_EARLY_SCIF_CONSOLE=y CONFIG_EARLY_SCIF_CONSOLE_PORT=0xffe80000 CONFIG_EARLY_PRINTK=y -# CONFIG_KGDB is not set +# CONFIG_SH_KGDB is not set # # Security options diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index ab4ebb856c2..b4672802719 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -224,7 +224,7 @@ work_resched: syscall_exit_work: ! r0: current_thread_info->flags ! r8: current_thread_info - tst #_TIF_SYSCALL_TRACE, r0 + tst #_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP, r0 bt/s work_pending tst #_TIF_NEED_RESCHED, r0 #ifdef CONFIG_TRACE_IRQFLAGS diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c index 66626c03e1e..771ea423044 100644 --- a/arch/sh/kernel/io_generic.c +++ b/arch/sh/kernel/io_generic.c @@ -14,7 +14,6 @@ #include <linux/module.h> #include <linux/io.h> #include <asm/machvec.h> -#include <asm/cacheflush.h> #ifdef CONFIG_CPU_SH3 /* SH3 has a PCMCIA bug that needs a dummy read from area 6 for a @@ -96,7 +95,6 @@ void generic_insw(unsigned long port, void *dst, unsigned long count) while (count--) *buf++ = *port_addr; - flush_dcache_all(); dummy_read(); } @@ -171,7 +169,6 @@ void generic_outsw(unsigned long port, const void *src, unsigned long count) while (count--) *port_addr = *buf++; - flush_dcache_all(); dummy_read(); } diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index 9d6a438b3ea..e7607366ac4 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -250,12 +250,11 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, childregs->regs[15] = usp; ti->addr_limit = USER_DS; } else { - childregs->regs[15] = (unsigned long)task_stack_page(p) + - THREAD_SIZE; + childregs->regs[15] = (unsigned long)childregs; ti->addr_limit = KERNEL_DS; } - if (clone_flags & CLONE_SETTLS) + if (clone_flags & CLONE_SETTLS) childregs->gbr = childregs->regs[0]; childregs->regs[0] = 0; /* Set return value for child */ diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index 04ca13a041c..855f7246cff 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c @@ -8,7 +8,6 @@ * SuperH version: Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka * */ - #include <linux/kernel.h> #include <linux/sched.h> #include <linux/mm.h> @@ -20,8 +19,7 @@ #include <linux/slab.h> #include <linux/security.h> #include <linux/signal.h> - -#include <asm/io.h> +#include <linux/io.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -59,6 +57,23 @@ static inline int put_stack_long(struct task_struct *task, int offset, return 0; } +static void ptrace_disable_singlestep(struct task_struct *child) +{ + clear_tsk_thread_flag(child, TIF_SINGLESTEP); + + /* + * Ensure the UBC is not programmed at the next context switch. + * + * Normally this is not needed but there are sequences such as + * singlestep, signal delivery, and continue that leave the + * ubc_pc non-zero leading to spurious SIGTRAPs. + */ + if (child->thread.ubc_pc != 0) { + ubc_usercnt -= 1; + child->thread.ubc_pc = 0; + } +} + /* * Called by kernel/ptrace.c when detaching.. * @@ -66,7 +81,7 @@ static inline int put_stack_long(struct task_struct *task, int offset, */ void ptrace_disable(struct task_struct *child) { - /* nothing to do.. */ + ptrace_disable_singlestep(child); } long arch_ptrace(struct task_struct *child, long request, long addr, long data) @@ -76,7 +91,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) switch (request) { /* when I and D space are separate, these will need to be fixed. */ - case PTRACE_PEEKTEXT: /* read word at location addr. */ + case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: { unsigned long tmp; int copied; @@ -94,7 +109,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) unsigned long tmp; ret = -EIO; - if ((addr & 3) || addr < 0 || + if ((addr & 3) || addr < 0 || addr > sizeof(struct user) - 3) break; @@ -129,7 +144,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ ret = -EIO; - if ((addr & 3) || addr < 0 || + if ((addr & 3) || addr < 0 || addr > sizeof(struct user) - 3) break; @@ -156,6 +171,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); else clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + + ptrace_disable_singlestep(child); + child->exit_code = data; wake_up_process(child); ret = 0; @@ -163,14 +181,15 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } /* - * make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to + * make the child exit. Best I can do is send it a sigkill. + * perhaps it should be put in the status that it wants to * exit. */ case PTRACE_KILL: { ret = 0; if (child->exit_state == EXIT_ZOMBIE) /* already dead */ break; + ptrace_disable_singlestep(child); child->exit_code = SIGKILL; wake_up_process(child); break; @@ -196,6 +215,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ubc_usercnt += 1; child->thread.ubc_pc = pc; + set_tsk_thread_flag(child, TIF_SINGLESTEP); child->exit_code = data; /* give it a chance to run. */ wake_up_process(child); @@ -248,14 +268,15 @@ asmlinkage void do_syscall_trace(void) { struct task_struct *tsk = current; - if (!test_thread_flag(TIF_SYSCALL_TRACE)) + if (!test_thread_flag(TIF_SYSCALL_TRACE) && + !test_thread_flag(TIF_SINGLESTEP)) return; if (!(tsk->ptrace & PT_PTRACED)) return; /* the 0x80 provides a way for the tracing parent to distinguish between a syscall stop and SIGTRAP delivery */ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) && + !test_thread_flag(TIF_SINGLESTEP) ? 0x80 : 0)); /* * this isn't the same as continuing with a signal, but it will do diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index 32f10a03fbb..9f39ef1f73d 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c @@ -589,6 +589,8 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) if (test_thread_flag(TIF_RESTORE_SIGMASK)) clear_thread_flag(TIF_RESTORE_SIGMASK); } + + return; } no_signal: @@ -598,7 +600,7 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) if (regs->regs[0] == -ERESTARTNOHAND || regs->regs[0] == -ERESTARTSYS || regs->regs[0] == -ERESTARTNOINTR) { - regs->regs[0] = save_r0; + regs->regs[0] = save_r0; regs->pc -= 2; } else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) { regs->pc -= 2; diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 75de165867a..78a6c09875b 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S @@ -3,6 +3,7 @@ * Written by Niibe Yutaka */ #include <asm/thread_info.h> +#include <asm/cache.h> #include <asm-generic/vmlinux.lds.h> #ifdef CONFIG_CPU_LITTLE_ENDIAN @@ -53,7 +54,7 @@ SECTIONS . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.page_aligned) } - . = ALIGN(32); + . = ALIGN(L1_CACHE_BYTES); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index e0cd4b7f4ae..981b0408905 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -237,20 +237,10 @@ static inline void flush_cache_4096(unsigned long start, /* * Write back & invalidate the D-cache of the page. * (To avoid "alias" issues) - * - * This uses a lazy write-back on UP, which is explicitly - * disabled on SMP. */ void flush_dcache_page(struct page *page) { -#ifndef CONFIG_SMP - struct address_space *mapping = page_mapping(page); - - if (mapping && !mapping_mapped(mapping)) - set_bit(PG_dcache_dirty, &page->flags); - else -#endif - { + if (test_bit(PG_mapped, &page->flags)) { unsigned long phys = PHYSADDR(page_address(page)); unsigned long addr = CACHE_OC_ADDRESS_ARRAY; int i, n; diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index 31f8deb7a15..4896d737692 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c @@ -3,11 +3,11 @@ * * Copyright (C) 1999, 2000 Niibe Yutaka * Copyright (C) 2004 Alex Song - * Copyright (C) 2006 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. + * */ #include <linux/init.h> #include <linux/mman.h> @@ -51,6 +51,7 @@ static inline void cache_wback_all(void) if ((data & v) == v) ctrl_outl(data & ~v, addr); + } addrstart += current_cpu_data.dcache.way_incr; @@ -127,11 +128,7 @@ static void __flush_dcache_page(unsigned long phys) */ void flush_dcache_page(struct page *page) { - struct address_space *mapping = page_mapping(page); - - if (mapping && !mapping_mapped(mapping)) - set_bit(PG_dcache_dirty, &page->flags); - else + if (test_bit(PG_mapped, &page->flags)) __flush_dcache_page(PHYSADDR(page_address(page))); } diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c index 969efeceb92..df69da9ca69 100644 --- a/arch/sh/mm/pg-sh4.c +++ b/arch/sh/mm/pg-sh4.c @@ -23,6 +23,7 @@ extern struct mutex p3map_mutex[]; */ void clear_user_page(void *to, unsigned long address, struct page *page) { + __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) clear_page(to); else { @@ -58,6 +59,7 @@ void clear_user_page(void *to, unsigned long address, struct page *page) void copy_user_page(void *to, void *from, unsigned long address, struct page *page) { + __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) copy_page(to, from); else { @@ -82,3 +84,23 @@ void copy_user_page(void *to, void *from, unsigned long address, mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); } } + +/* + * For SH-4, we have our own implementation for ptep_get_and_clear + */ +inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) +{ + pte_t pte = *ptep; + + pte_clear(mm, addr, ptep); + if (!pte_not_present(pte)) { + unsigned long pfn = pte_pfn(pte); + if (pfn_valid(pfn)) { + struct page *page = pfn_to_page(pfn); + struct address_space *mapping = page_mapping(page); + if (!mapping || !mapping_writably_mapped(mapping)) + __clear_bit(PG_mapped, &page->flags); + } + } + return pte; +} diff --git a/arch/sh/mm/pg-sh7705.c b/arch/sh/mm/pg-sh7705.c index 887ab9d18cc..a4b015f95a3 100644 --- a/arch/sh/mm/pg-sh7705.c +++ b/arch/sh/mm/pg-sh7705.c @@ -7,7 +7,9 @@ * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. + * */ + #include <linux/init.h> #include <linux/mman.h> #include <linux/mm.h> @@ -74,6 +76,7 @@ void clear_user_page(void *to, unsigned long address, struct page *pg) { struct page *page = virt_to_page(to); + __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) { clear_page(to); __flush_wback_region(to, PAGE_SIZE); @@ -92,11 +95,12 @@ void clear_user_page(void *to, unsigned long address, struct page *pg) * @from: P1 address * @address: U0 address to be mapped */ -void copy_user_page(void *to, void *from, unsigned long address, - struct page *pg) +void copy_user_page(void *to, void *from, unsigned long address, struct page *pg) { struct page *page = virt_to_page(to); + + __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) { copy_page(to, from); __flush_wback_region(to, PAGE_SIZE); @@ -108,3 +112,26 @@ void copy_user_page(void *to, void *from, unsigned long address, __flush_wback_region(to, PAGE_SIZE); } } + +/* + * For SH7705, we have our own implementation for ptep_get_and_clear + * Copied from pg-sh4.c + */ +inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) +{ + pte_t pte = *ptep; + + pte_clear(mm, addr, ptep); + if (!pte_not_present(pte)) { + unsigned long pfn = pte_pfn(pte); + if (pfn_valid(pfn)) { + struct page *page = pfn_to_page(pfn); + struct address_space *mapping = page_mapping(page); + if (!mapping || !mapping_writably_mapped(mapping)) + __clear_bit(PG_mapped, &page->flags); + } + } + + return pte; +} + diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c index d2f7b4a2eb0..6f45c1f8a7f 100644 --- a/arch/sh/mm/tlb-flush.c +++ b/arch/sh/mm/tlb-flush.c @@ -2,17 +2,15 @@ * TLB flushing operations for SH with an MMU. * * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2003 - 2006 Paul Mundt + * Copyright (C) 2003 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/mm.h> -#include <linux/io.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> -#include <asm/cacheflush.h> void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) { @@ -140,54 +138,3 @@ void local_flush_tlb_all(void) ctrl_barrier(); local_irq_restore(flags); } - -void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t pte) -{ - unsigned long flags; - unsigned long pteval; - unsigned long vpn; - struct page *page; - unsigned long pfn = pte_pfn(pte); - struct address_space *mapping; - - if (!pfn_valid(pfn)) - return; - - page = pfn_to_page(pfn); - mapping = page_mapping(page); - if (mapping) { - unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; - int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags); - - if (dirty) - __flush_wback_region((void *)P1SEGADDR(phys), - PAGE_SIZE); - } - - local_irq_save(flags); - - /* Set PTEH register */ - vpn = (address & MMU_VPN_MASK) | get_asid(); - ctrl_outl(vpn, MMU_PTEH); - - pteval = pte_val(pte); - -#ifdef CONFIG_CPU_HAS_PTEA - /* Set PTEA register */ - /* TODO: make this look less hacky */ - ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA); -#endif - - /* Set PTEL register */ - pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ -#if defined(CONFIG_SH_WRITETHROUGH) && defined(CONFIG_CPU_SH4) - pteval |= _PAGE_WT; -#endif - /* conveniently, we want all the software flags to be 0 anyway */ - ctrl_outl(pteval, MMU_PTEL); - - /* Load the TLB */ - asm volatile("ldtlb": /* no output */ : /* no input */ : "memory"); - local_irq_restore(flags); -} diff --git a/arch/sh/mm/tlb-sh3.c b/arch/sh/mm/tlb-sh3.c index e5e76eb7ee0..7fbfd5a11ff 100644 --- a/arch/sh/mm/tlb-sh3.c +++ b/arch/sh/mm/tlb-sh3.c @@ -8,9 +8,69 @@ * * Released under the terms of the GNU GPL v2.0. */ -#include <linux/io.h> +#include <linux/signal.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/mman.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/smp_lock.h> +#include <linux/interrupt.h> + #include <asm/system.h> +#include <asm/io.h> +#include <asm/uaccess.h> +#include <asm/pgalloc.h> #include <asm/mmu_context.h> +#include <asm/cacheflush.h> + +void update_mmu_cache(struct vm_area_struct * vma, + unsigned long address, pte_t pte) +{ + unsigned long flags; + unsigned long pteval; + unsigned long vpn; + + /* Ptrace may call this routine. */ + if (vma && current->active_mm != vma->vm_mm) + return; + +#if defined(CONFIG_SH7705_CACHE_32KB) + { + struct page *page = pte_page(pte); + unsigned long pfn = pte_pfn(pte); + + if (pfn_valid(pfn) && !test_bit(PG_mapped, &page->flags)) { + unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; + + __flush_wback_region((void *)P1SEGADDR(phys), + PAGE_SIZE); + __set_bit(PG_mapped, &page->flags); + } + } +#endif + + local_irq_save(flags); + + /* Set PTEH register */ + vpn = (address & MMU_VPN_MASK) | get_asid(); + ctrl_outl(vpn, MMU_PTEH); + + pteval = pte_val(pte); + + /* Set PTEL register */ + pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ + /* conveniently, we want all the software flags to be 0 anyway */ + ctrl_outl(pteval, MMU_PTEL); + + /* Load the TLB */ + asm volatile("ldtlb": /* no output */ : /* no input */ : "memory"); + local_irq_restore(flags); +} void local_flush_tlb_one(unsigned long asid, unsigned long page) { @@ -34,3 +94,4 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page) for (i = 0; i < ways; i++) ctrl_outl(data, addr + (i << 8)); } + diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index 221e7095473..f74cf667c8f 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c @@ -8,9 +8,74 @@ * * Released under the terms of the GNU GPL v2.0. */ -#include <linux/io.h> +#include <linux/signal.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/mman.h> +#include <linux/mm.h> +#include <linux/smp.h> +#include <linux/smp_lock.h> +#include <linux/interrupt.h> + #include <asm/system.h> +#include <asm/io.h> +#include <asm/uaccess.h> +#include <asm/pgalloc.h> #include <asm/mmu_context.h> +#include <asm/cacheflush.h> + +void update_mmu_cache(struct vm_area_struct * vma, + unsigned long address, pte_t pte) +{ + unsigned long flags; + unsigned long pteval; + unsigned long vpn; + struct page *page; + unsigned long pfn; + + /* Ptrace may call this routine. */ + if (vma && current->active_mm != vma->vm_mm) + return; + + pfn = pte_pfn(pte); + if (pfn_valid(pfn)) { + page = pfn_to_page(pfn); + if (!test_bit(PG_mapped, &page->flags)) { + unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; + __flush_wback_region((void *)P1SEGADDR(phys), PAGE_SIZE); + __set_bit(PG_mapped, &page->flags); + } + } + + local_irq_save(flags); + + /* Set PTEH register */ + vpn = (address & MMU_VPN_MASK) | get_asid(); + ctrl_outl(vpn, MMU_PTEH); + + pteval = pte_val(pte); + + /* Set PTEA register */ + if (cpu_data->flags & CPU_HAS_PTEA) + /* TODO: make this look less hacky */ + ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA); + + /* Set PTEL register */ + pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */ +#ifdef CONFIG_SH_WRITETHROUGH + pteval |= _PAGE_WT; +#endif + /* conveniently, we want all the software flags to be 0 anyway */ + ctrl_outl(pteval, MMU_PTEL); + + /* Load the TLB */ + asm volatile("ldtlb": /* no output */ : /* no input */ : "memory"); + local_irq_restore(flags); +} void local_flush_tlb_one(unsigned long asid, unsigned long page) { @@ -28,3 +93,4 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page) ctrl_outl(data, addr); back_to_P1(); } + diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c index 310af0f1e49..021b82c7a75 100644 --- a/arch/um/drivers/daemon_user.c +++ b/arch/um/drivers/daemon_user.c @@ -56,30 +56,31 @@ static int connect_to_switch(struct daemon_data *pri) pri->control = socket(AF_UNIX, SOCK_STREAM, 0); if(pri->control < 0){ + err = -errno; printk("daemon_open : control socket failed, errno = %d\n", - errno); - return(-errno); + -err); + return err; } if(connect(pri->control, (struct sockaddr *) ctl_addr, sizeof(*ctl_addr)) < 0){ - printk("daemon_open : control connect failed, errno = %d\n", - errno); err = -errno; + printk("daemon_open : control connect failed, errno = %d\n", + -err); goto out; } fd = socket(AF_UNIX, SOCK_DGRAM, 0); if(fd < 0){ - printk("daemon_open : data socket failed, errno = %d\n", - errno); err = -errno; + printk("daemon_open : data socket failed, errno = %d\n", + -err); goto out; } if(bind(fd, (struct sockaddr *) local_addr, sizeof(*local_addr)) < 0){ - printk("daemon_open : data bind failed, errno = %d\n", - errno); err = -errno; + printk("daemon_open : data bind failed, errno = %d\n", + -err); goto out_close; } diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index 01d4ab6b0ef..f75d7b05c48 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c @@ -370,10 +370,10 @@ static irqreturn_t line_write_interrupt(int irq, void *data) struct tty_struct *tty = line->tty; int err; - /* Interrupts are enabled here because we registered the interrupt with + /* Interrupts are disabled here because we registered the interrupt with * IRQF_DISABLED (see line_setup_irq).*/ - spin_lock_irq(&line->lock); + spin_lock(&line->lock); err = flush_buffer(line); if (err == 0) { return IRQ_NONE; @@ -381,7 +381,7 @@ static irqreturn_t line_write_interrupt(int irq, void *data) line->head = line->buffer; line->tail = line->buffer; } - spin_unlock_irq(&line->lock); + spin_unlock(&line->lock); if(tty == NULL) return IRQ_NONE; diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c index 8138f5ea1bf..b827e82884c 100644 --- a/arch/um/drivers/mcast_user.c +++ b/arch/um/drivers/mcast_user.c @@ -50,6 +50,14 @@ static void mcast_user_init(void *data, void *dev) pri->dev = dev; } +static void mcast_remove(void *data) +{ + struct mcast_data *pri = data; + + kfree(pri->mcast_addr); + pri->mcast_addr = NULL; +} + static int mcast_open(void *data) { struct mcast_data *pri = data; @@ -157,7 +165,7 @@ const struct net_user_info mcast_user_info = { .init = mcast_user_init, .open = mcast_open, .close = mcast_close, - .remove = NULL, + .remove = mcast_remove, .set_mtu = mcast_set_mtu, .add_address = NULL, .delete_address = NULL, diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index fc22b9bd915..4b382a6e710 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c @@ -179,7 +179,7 @@ static struct console ssl_cons = { .write = ssl_console_write, .device = ssl_console_device, .setup = ssl_console_setup, - .flags = CON_PRINTBUFFER, + .flags = CON_PRINTBUFFER|CON_ANYTIME, .index = -1, }; diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 7ff0b0fc37e..76d1f1c980e 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c @@ -153,7 +153,7 @@ static struct console stdiocons = { .write = uml_console_write, .device = uml_console_device, .setup = uml_console_setup, - .flags = CON_PRINTBUFFER, + .flags = CON_PRINTBUFFER|CON_ANYTIME, .index = -1, }; diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 8629bd19149..5c74da41045 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h @@ -192,7 +192,9 @@ extern int os_process_parent(int pid); extern void os_stop_process(int pid); extern void os_kill_process(int pid, int reap_child); extern void os_kill_ptraced_process(int pid, int reap_child); +#ifdef UML_CONFIG_MODE_TT extern void os_usr1_process(int pid); +#endif extern long os_ptrace_ldt(long pid, long addr, long data); extern int os_getpid(void); @@ -261,7 +263,6 @@ extern void block_signals(void); extern void unblock_signals(void); extern int get_signals(void); extern int set_signals(int enable); -extern void os_usr1_signal(int on); /* trap.c */ extern void os_fill_handlinfo(struct kern_handlers h); diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 50a288bb875..dbf2f5bc842 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -142,6 +142,7 @@ int activate_fd(int irq, int fd, int type, void *dev_id) .events = events, .current_events = 0 } ); + err = -EBUSY; spin_lock_irqsave(&irq_lock, flags); for (irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next) { if ((irq_fd->fd == fd) && (irq_fd->type == type)) { diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c index c692a192957..76bdd671241 100644 --- a/arch/um/os-Linux/process.c +++ b/arch/um/os-Linux/process.c @@ -21,6 +21,7 @@ #include "longjmp.h" #include "skas_ptrace.h" #include "kern_constants.h" +#include "uml-config.h" #define ARBITRARY_ADDR -1 #define FAILURE_PID -1 @@ -131,10 +132,12 @@ void os_kill_ptraced_process(int pid, int reap_child) CATCH_EINTR(waitpid(pid, NULL, 0)); } +#ifdef UML_CONFIG_MODE_TT void os_usr1_process(int pid) { kill(pid, SIGUSR1); } +#endif /* Don't use the glibc version, which caches the result in TLS. It misses some * syscalls, and also breaks with clone(), which does not unshare the TLS. diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index b897e8592d7..266768629fe 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -243,8 +243,3 @@ int set_signals(int enable) return ret; } - -void os_usr1_signal(int on) -{ - change_sig(SIGUSR1, on); -} diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index 01b91f9fa78..b3f6350cac4 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -103,6 +103,9 @@ long arch_prctl_skas(struct task_struct *task, int code, switch(code){ case ARCH_SET_FS: + current->thread.arch.fs = (unsigned long) ptr; + save_registers(pid, ¤t->thread.regs.regs); + break; case ARCH_SET_GS: save_registers(pid, ¤t->thread.regs.regs); break; @@ -140,9 +143,8 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp, void arch_switch_to_skas(struct task_struct *from, struct task_struct *to) { - if(to->thread.arch.fs == 0) + if((to->thread.arch.fs == 0) || (to->mm == NULL)) return; arch_prctl_skas(to, ARCH_SET_FS, (void __user *) to->thread.arch.fs); } - diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c index 04566fe5de4..4de3a54318f 100644 --- a/arch/x86_64/ia32/ptrace32.c +++ b/arch/x86_64/ia32/ptrace32.c @@ -243,6 +243,7 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data) case PTRACE_SINGLESTEP: case PTRACE_DETACH: case PTRACE_SYSCALL: + case PTRACE_OLDSETOPTIONS: case PTRACE_SETOPTIONS: case PTRACE_SET_THREAD_AREA: case PTRACE_GET_THREAD_AREA: diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 35443729aad..cd4643a3702 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -923,8 +923,9 @@ void __init smp_prepare_boot_cpu(void) */ int __cpuinit __cpu_up(unsigned int cpu) { - int err; int apicid = cpu_present_to_apicid(cpu); + unsigned long flags; + int err; WARN_ON(irqs_disabled()); @@ -958,7 +959,9 @@ int __cpuinit __cpu_up(unsigned int cpu) /* * Make sure and check TSC sync: */ + local_irq_save(flags); check_tsc_sync_source(cpu); + local_irq_restore(flags); while (!cpu_isset(cpu, cpu_online_map)) cpu_relax(); |