diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h index d8378935ae90918149a3099b46b38e11f5aa7d42..47f95839dc6956e190cd1175cb50b74491dcab00 100644 --- a/arch/sparc/include/asm/futex_64.h +++ b/arch/sparc/include/asm/futex_64.h @@ -59,7 +59,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) __futex_cas_op("or\t%2, %4, %1", ret, oldval, uaddr, oparg); break; case FUTEX_OP_ANDN: - __futex_cas_op("and\t%2, %4, %1", ret, oldval, uaddr, oparg); + __futex_cas_op("andn\t%2, %4, %1", ret, oldval, uaddr, oparg); break; case FUTEX_OP_XOR: __futex_cas_op("xor\t%2, %4, %1", ret, oldval, uaddr, oparg); diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h index 0bb9bf531745e8caf587135f3cf3063f31d24a4c..3473e25231d96e3fe63a0227cf3103d409074cf4 100644 --- a/arch/sparc/include/asm/irq_64.h +++ b/arch/sparc/include/asm/irq_64.h @@ -90,4 +90,7 @@ static inline unsigned long get_softint(void) return retval; } +void __trigger_all_cpu_backtrace(void); +#define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace() + #endif diff --git a/arch/sparc/include/asm/of_platform.h b/arch/sparc/include/asm/of_platform.h index aa699775ffba8c9dd40b56465d725f6aba224fb1..93a262c44022d25f90561e946dcaba714584d2d0 100644 --- a/arch/sparc/include/asm/of_platform.h +++ b/arch/sparc/include/asm/of_platform.h @@ -1,8 +1,24 @@ #ifndef ___ASM_SPARC_OF_PLATFORM_H #define ___ASM_SPARC_OF_PLATFORM_H -#if defined(__sparc__) && defined(__arch64__) -#include -#else -#include -#endif +/* + * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. + * + * Modified for Sparc by merging parts of asm/of_device.h + * by Stephen Rothwell + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +/* This is just here during the transition */ +#include + +extern struct bus_type ebus_bus_type; +extern struct bus_type sbus_bus_type; + +#define of_bus_type of_platform_bus_type /* for compatibility */ + #endif diff --git a/arch/sparc/include/asm/of_platform_32.h b/arch/sparc/include/asm/of_platform_32.h deleted file mode 100644 index 723f7c9b7411dbce7f5d995b1538a26928cdd630..0000000000000000000000000000000000000000 --- a/arch/sparc/include/asm/of_platform_32.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef _ASM_SPARC_OF_PLATFORM_H -#define _ASM_SPARC_OF_PLATFORM_H -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * - * Modified for Sparc by merging parts of asm/of_device.h - * by Stephen Rothwell - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -/* This is just here during the transition */ -#include - -extern struct bus_type ebus_bus_type; -extern struct bus_type sbus_bus_type; - -#define of_bus_type of_platform_bus_type /* for compatibility */ - -#endif /* _ASM_SPARC_OF_PLATFORM_H */ diff --git a/arch/sparc/include/asm/of_platform_64.h b/arch/sparc/include/asm/of_platform_64.h deleted file mode 100644 index 4f66a5f6342d88dae63419b799707fbabba1c3f2..0000000000000000000000000000000000000000 --- a/arch/sparc/include/asm/of_platform_64.h +++ /dev/null @@ -1,25 +0,0 @@ -#ifndef _ASM_SPARC64_OF_PLATFORM_H -#define _ASM_SPARC64_OF_PLATFORM_H -/* - * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp. - * - * Modified for Sparc by merging parts of asm/of_device.h - * by Stephen Rothwell - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -/* This is just here during the transition */ -#include - -extern struct bus_type isa_bus_type; -extern struct bus_type ebus_bus_type; -extern struct bus_type sbus_bus_type; - -#define of_bus_type of_platform_bus_type /* for compatibility */ - -#endif /* _ASM_SPARC64_OF_PLATFORM_H */ diff --git a/arch/sparc/include/asm/ptrace_32.h b/arch/sparc/include/asm/ptrace_32.h index d43c88b86834d2fc08986b32e1191b4962bf0f9d..d409c4f21a5cdea420e75fef24a2ceec1cb0e834 100644 --- a/arch/sparc/include/asm/ptrace_32.h +++ b/arch/sparc/include/asm/ptrace_32.h @@ -40,16 +40,6 @@ struct pt_regs { #define UREG_FP UREG_I6 #define UREG_RETPC UREG_I7 -static inline bool pt_regs_is_syscall(struct pt_regs *regs) -{ - return (regs->psr & PSR_SYSCALL); -} - -static inline bool pt_regs_clear_syscall(struct pt_regs *regs) -{ - return (regs->psr &= ~PSR_SYSCALL); -} - /* A register window */ struct reg_window { unsigned long locals[8]; @@ -72,6 +62,16 @@ struct sparc_stackf { #ifdef __KERNEL__ +static inline bool pt_regs_is_syscall(struct pt_regs *regs) +{ + return (regs->psr & PSR_SYSCALL); +} + +static inline bool pt_regs_clear_syscall(struct pt_regs *regs) +{ + return (regs->psr &= ~PSR_SYSCALL); +} + #define user_mode(regs) (!((regs)->psr & PSR_PS)) #define instruction_pointer(regs) ((regs)->pc) #define user_stack_pointer(regs) ((regs)->u_regs[UREG_FP]) diff --git a/arch/sparc/include/asm/ptrace_64.h b/arch/sparc/include/asm/ptrace_64.h index ec6d45c84cd0e4a0a0aa12cbc6e229b975d6f38e..06e4914c13f4100182ccd5aa5720d3247e4469fa 100644 --- a/arch/sparc/include/asm/ptrace_64.h +++ b/arch/sparc/include/asm/ptrace_64.h @@ -37,21 +37,6 @@ struct pt_regs { unsigned int magic; }; -static inline int pt_regs_trap_type(struct pt_regs *regs) -{ - return regs->magic & 0x1ff; -} - -static inline bool pt_regs_is_syscall(struct pt_regs *regs) -{ - return (regs->tstate & TSTATE_SYSCALL); -} - -static inline bool pt_regs_clear_syscall(struct pt_regs *regs) -{ - return (regs->tstate &= ~TSTATE_SYSCALL); -} - struct pt_regs32 { unsigned int psr; unsigned int pc; @@ -128,15 +113,30 @@ struct sparc_trapf { #ifdef __KERNEL__ +static inline int pt_regs_trap_type(struct pt_regs *regs) +{ + return regs->magic & 0x1ff; +} + +static inline bool pt_regs_is_syscall(struct pt_regs *regs) +{ + return (regs->tstate & TSTATE_SYSCALL); +} + +static inline bool pt_regs_clear_syscall(struct pt_regs *regs) +{ + return (regs->tstate &= ~TSTATE_SYSCALL); +} + struct global_reg_snapshot { unsigned long tstate; unsigned long tpc; unsigned long tnpc; unsigned long o7; unsigned long i7; + unsigned long rpc; struct thread_info *thread; unsigned long pad1; - unsigned long pad2; }; #define __ARCH_WANT_COMPAT_SYS_PTRACE @@ -154,7 +154,6 @@ extern unsigned long profile_pc(struct pt_regs *); #define profile_pc(regs) instruction_pointer(regs) #endif extern void show_regs(struct pt_regs *); -extern void __show_regs(struct pt_regs *); #endif #else /* __ASSEMBLY__ */ @@ -315,9 +314,9 @@ extern void __show_regs(struct pt_regs *); #define GR_SNAP_TNPC 0x10 #define GR_SNAP_O7 0x18 #define GR_SNAP_I7 0x20 -#define GR_SNAP_THREAD 0x28 -#define GR_SNAP_PAD1 0x30 -#define GR_SNAP_PAD2 0x38 +#define GR_SNAP_RPC 0x28 +#define GR_SNAP_THREAD 0x30 +#define GR_SNAP_PAD1 0x38 #endif /* __KERNEL__ */ diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index 4fd48ab7dda40bef2a290e08cb07558122b3be35..f8b50cbf4bf711658ef3ad742270da424cbf4294 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -56,9 +56,6 @@ struct of_device *of_find_device_by_node(struct device_node *dp) EXPORT_SYMBOL(of_find_device_by_node); #ifdef CONFIG_PCI -struct bus_type isa_bus_type; -EXPORT_SYMBOL(isa_bus_type); - struct bus_type ebus_bus_type; EXPORT_SYMBOL(ebus_bus_type); #endif @@ -841,8 +838,6 @@ static int __init of_bus_driver_init(void) err = of_bus_type_init(&of_platform_bus_type, "of"); #ifdef CONFIG_PCI - if (!err) - err = of_bus_type_init(&isa_bus_type, "isa"); if (!err) err = of_bus_type_init(&ebus_bus_type, "ebus"); #endif diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index 8a9cd3e165b9af46818a107b62470554ce8c80a7..7f5debdc5fed6ad2a4ae86b1ff78836efe8dce03 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -52,8 +52,6 @@ #include #include -/* #define VERBOSE_SHOWREGS */ - static void sparc64_yield(int cpu) { if (tlb_type != hypervisor) @@ -213,22 +211,8 @@ static void show_regwindow(struct pt_regs *regs) printk("I7: <%pS>\n", (void *) rwk->ins[7]); } -#ifdef CONFIG_SMP -static DEFINE_SPINLOCK(regdump_lock); -#endif - -void __show_regs(struct pt_regs * regs) +void show_regs(struct pt_regs *regs) { -#ifdef CONFIG_SMP - unsigned long flags; - - /* Protect against xcall ipis which might lead to livelock on the lock */ - __asm__ __volatile__("rdpr %%pstate, %0\n\t" - "wrpr %0, %1, %%pstate" - : "=r" (flags) - : "i" (PSTATE_IE)); - spin_lock(®dump_lock); -#endif printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, regs->tpc, regs->tnpc, regs->y, print_tainted()); printk("TPC: <%pS>\n", (void *) regs->tpc); @@ -246,64 +230,24 @@ void __show_regs(struct pt_regs * regs) regs->u_regs[15]); printk("RPC: <%pS>\n", (void *) regs->u_regs[15]); show_regwindow(regs); -#ifdef CONFIG_SMP - spin_unlock(®dump_lock); - __asm__ __volatile__("wrpr %0, 0, %%pstate" - : : "r" (flags)); -#endif } -#ifdef VERBOSE_SHOWREGS -static void idump_from_user (unsigned int *pc) -{ - int i; - int code; - - if((((unsigned long) pc) & 3)) - return; - - pc -= 3; - for(i = -3; i < 6; i++) { - get_user(code, pc); - printk("%c%08x%c",i?' ':'<',code,i?' ':'>'); - pc++; - } - printk("\n"); -} -#endif +struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; +static DEFINE_SPINLOCK(global_reg_snapshot_lock); -void show_regs(struct pt_regs *regs) +static bool kstack_valid(struct thread_info *tp, struct reg_window *rw) { -#ifdef VERBOSE_SHOWREGS - extern long etrap, etraptl1; -#endif - __show_regs(regs); -#if 0 -#ifdef CONFIG_SMP - { - extern void smp_report_regs(void); + unsigned long thread_base, fp; - smp_report_regs(); - } -#endif -#endif + thread_base = (unsigned long) tp; + fp = (unsigned long) rw; -#ifdef VERBOSE_SHOWREGS - if (regs->tpc >= &etrap && regs->tpc < &etraptl1 && - regs->u_regs[14] >= (long)current - PAGE_SIZE && - regs->u_regs[14] < (long)current + 6 * PAGE_SIZE) { - printk ("*********parent**********\n"); - __show_regs((struct pt_regs *)(regs->u_regs[14] + PTREGS_OFF)); - idump_from_user(((struct pt_regs *)(regs->u_regs[14] + PTREGS_OFF))->tpc); - printk ("*********endpar**********\n"); - } -#endif + if (fp < (thread_base + sizeof(struct thread_info)) || + fp >= (thread_base + THREAD_SIZE)) + return false; + return true; } -#ifdef CONFIG_MAGIC_SYSRQ -struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; -static DEFINE_SPINLOCK(global_reg_snapshot_lock); - static void __global_reg_self(struct thread_info *tp, struct pt_regs *regs, int this_cpu) { @@ -315,14 +259,22 @@ static void __global_reg_self(struct thread_info *tp, struct pt_regs *regs, global_reg_snapshot[this_cpu].o7 = regs->u_regs[UREG_I7]; if (regs->tstate & TSTATE_PRIV) { + struct thread_info *tp = current_thread_info(); struct reg_window *rw; rw = (struct reg_window *) (regs->u_regs[UREG_FP] + STACK_BIAS); - global_reg_snapshot[this_cpu].i7 = rw->ins[6]; - } else + if (kstack_valid(tp, rw)) { + global_reg_snapshot[this_cpu].i7 = rw->ins[7]; + rw = (struct reg_window *) + (rw->ins[6] + STACK_BIAS); + if (kstack_valid(tp, rw)) + global_reg_snapshot[this_cpu].rpc = rw->ins[7]; + } + } else { global_reg_snapshot[this_cpu].i7 = 0; - + global_reg_snapshot[this_cpu].rpc = 0; + } global_reg_snapshot[this_cpu].thread = tp; } @@ -341,7 +293,7 @@ static void __global_reg_poll(struct global_reg_snapshot *gp) } } -static void sysrq_handle_globreg(int key, struct tty_struct *tty) +void __trigger_all_cpu_backtrace(void) { struct thread_info *tp = current_thread_info(); struct pt_regs *regs = get_irq_regs(); @@ -375,13 +327,14 @@ static void sysrq_handle_globreg(int key, struct tty_struct *tty) ((tp && tp->task) ? tp->task->pid : -1)); if (gp->tstate & TSTATE_PRIV) { - printk(" TPC[%pS] O7[%pS] I7[%pS]\n", + printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n", (void *) gp->tpc, (void *) gp->o7, - (void *) gp->i7); + (void *) gp->i7, + (void *) gp->rpc); } else { - printk(" TPC[%lx] O7[%lx] I7[%lx]\n", - gp->tpc, gp->o7, gp->i7); + printk(" TPC[%lx] O7[%lx] I7[%lx] RPC[%lx]\n", + gp->tpc, gp->o7, gp->i7, gp->rpc); } } @@ -390,6 +343,13 @@ static void sysrq_handle_globreg(int key, struct tty_struct *tty) spin_unlock_irqrestore(&global_reg_snapshot_lock, flags); } +#ifdef CONFIG_MAGIC_SYSRQ + +static void sysrq_handle_globreg(int key, struct tty_struct *tty) +{ + __trigger_all_cpu_backtrace(); +} + static struct sysrq_key_op sparc_globalreg_op = { .handler = sysrq_handle_globreg, .help_msg = "Globalregs", diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c index d1b84456a9eef969d6be3013432ccf1583631971..ca5a6ae3a6e2b37c77bcedb7bb18523cd95d615b 100644 --- a/arch/sparc64/kernel/signal.c +++ b/arch/sparc64/kernel/signal.c @@ -2,7 +2,7 @@ * arch/sparc64/kernel/signal.c * * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1995, 2008 David S. Miller (davem@davemloft.net) * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) @@ -91,7 +91,9 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs) err |= __get_user(regs->u_regs[UREG_G4], (&(*grp)[MC_G4])); err |= __get_user(regs->u_regs[UREG_G5], (&(*grp)[MC_G5])); err |= __get_user(regs->u_regs[UREG_G6], (&(*grp)[MC_G6])); - err |= __get_user(regs->u_regs[UREG_G7], (&(*grp)[MC_G7])); + + /* Skip %g7 as that's the thread register in userspace. */ + err |= __get_user(regs->u_regs[UREG_I0], (&(*grp)[MC_O0])); err |= __get_user(regs->u_regs[UREG_I1], (&(*grp)[MC_O1])); err |= __get_user(regs->u_regs[UREG_I2], (&(*grp)[MC_O2])); diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 7cf72b4bb1089498348be341ee02a840161a1af3..340842e51ce131d5c3797e89eb376335e92e3374 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -843,7 +843,6 @@ void smp_tsb_sync(struct mm_struct *mm) extern unsigned long xcall_flush_tlb_mm; extern unsigned long xcall_flush_tlb_pending; extern unsigned long xcall_flush_tlb_kernel_range; -extern unsigned long xcall_report_regs; #ifdef CONFIG_MAGIC_SYSRQ extern unsigned long xcall_fetch_glob_regs; #endif @@ -1022,11 +1021,6 @@ void kgdb_roundup_cpus(unsigned long flags) } #endif -void smp_report_regs(void) -{ - smp_cross_call(&xcall_report_regs, 0, 0, 0); -} - #ifdef CONFIG_MAGIC_SYSRQ void smp_fetch_global_regs(void) { diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 504e678ee128e3998af12688e0678aa4568204a1..0804f71df6cb8422fd09fda447be1a397fbd3c03 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -68,7 +68,6 @@ extern void *__memscan_zero(void *, size_t); extern void *__memscan_generic(void *, int, size_t); extern int __memcmp(const void *, const void *, __kernel_size_t); extern __kernel_size_t strlen(const char *); -extern void show_regs(struct pt_regs *); extern void syscall_trace(struct pt_regs *, int); extern void sys_sigsuspend(void); extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index bd30ecba563010bfced1ad54950875e59f160418..404e8561e2d0cec8b6d52a38be95d360624b0be7 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -1777,7 +1777,7 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, pfx, ent->err_raddr, ent->err_size, ent->err_cpu); - __show_regs(regs); + show_regs(regs); if ((cnt = atomic_read(ocnt)) != 0) { atomic_set(ocnt, 0); @@ -2177,7 +2177,6 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) void die_if_kernel(char *str, struct pt_regs *regs) { static int die_counter; - extern void smp_report_regs(void); int count = 0; /* Amuse the user. */ @@ -2190,7 +2189,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) printk("%s(%d): %s [#%d]\n", current->comm, task_pid_nr(current), str, ++die_counter); notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); __asm__ __volatile__("flushw"); - __show_regs(regs); + show_regs(regs); add_taint(TAINT_DIE); if (regs->tstate & TSTATE_PRIV) { struct reg_window *rw = (struct reg_window *) @@ -2215,11 +2214,6 @@ void die_if_kernel(char *str, struct pt_regs *regs) } user_instruction_dump ((unsigned int __user *) regs->tpc); } -#if 0 -#ifdef CONFIG_SMP - smp_report_regs(); -#endif -#endif if (regs->tstate & TSTATE_PRIV) do_exit(SIGKILL); do_exit(SIGSEGV); diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index 4c8ca131ffaf467ec329fc70753f32b076bff392..ff1dc44d363e1cd1349d1b5ad7e26dda18dd394c 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -480,41 +480,6 @@ xcall_sync_tick: b rtrap_xcall ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - /* NOTE: This is SPECIAL!! We do etrap/rtrap however - * we choose to deal with the "BH's run with - * %pil==15" problem (described in asm/pil.h) - * by just invoking rtrap directly past where - * BH's are checked for. - * - * We do it like this because we do not want %pil==15 - * lockups to prevent regs being reported. - */ - .globl xcall_report_regs -xcall_report_regs: - -661: rdpr %pstate, %g2 - wrpr %g2, PSTATE_IG | PSTATE_AG, %pstate - .section .sun4v_2insn_patch, "ax" - .word 661b - nop - nop - .previous - - rdpr %pil, %g2 - wrpr %g0, 15, %pil - sethi %hi(109f), %g7 - b,pt %xcc, etrap_irq -109: or %g7, %lo(109b), %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - call __show_regs - add %sp, PTREGS_OFF, %o0 - /* Has to be a non-v9 branch due to the large distance. */ - b rtrap_xcall - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - #ifdef CONFIG_MAGIC_SYSRQ .globl xcall_fetch_glob_regs xcall_fetch_glob_regs: @@ -531,6 +496,13 @@ xcall_fetch_glob_regs: stx %g7, [%g1 + GR_SNAP_TNPC] stx %o7, [%g1 + GR_SNAP_O7] stx %i7, [%g1 + GR_SNAP_I7] + /* Don't try this at home kids... */ + rdpr %cwp, %g2 + sub %g2, 1, %g7 + wrpr %g7, %cwp + mov %i7, %g7 + wrpr %g2, %cwp + stx %g7, [%g1 + GR_SNAP_RPC] sethi %hi(trap_block), %g7 or %g7, %lo(trap_block), %g7 sllx %g2, TRAP_BLOCK_SZ_SHIFT, %g2 diff --git a/drivers/video/console/.gitignore b/drivers/video/console/.gitignore new file mode 100644 index 0000000000000000000000000000000000000000..0c258b45439c72dbf7acaa5069b1fa49846bccf4 --- /dev/null +++ b/drivers/video/console/.gitignore @@ -0,0 +1,2 @@ +# conmakehash generated file +promcon_tbl.c