diff options
author | Ingo Molnar <mingo@elte.hu> | 2011-01-07 14:14:15 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2011-01-07 14:14:15 +0100 |
commit | 1c2a48cf65580a276552151eb8f78d78c55b828e (patch) | |
tree | 68ed0628a276b33cb5aa0ad4899c1afe0a33a69d /arch/mips/kernel | |
parent | 0aa002fe602939370e9476e5ec32b562000a0425 (diff) | |
parent | cb600d2f83c854ec3d6660063e4466431999489b (diff) |
Merge branch 'linus' into x86/apic-cleanups
Conflicts:
arch/x86/include/asm/io_apic.h
Merge reason: Resolve the conflict, update to a more recent -rc base
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r-- | arch/mips/kernel/cevt-r4k.c | 2 | ||||
-rw-r--r-- | arch/mips/kernel/cpu-probe.c | 7 | ||||
-rw-r--r-- | arch/mips/kernel/linux32.c | 13 | ||||
-rw-r--r-- | arch/mips/kernel/perf_event_mipsxx.c | 2 | ||||
-rw-r--r-- | arch/mips/kernel/process.c | 1 | ||||
-rw-r--r-- | arch/mips/kernel/prom.c | 2 | ||||
-rw-r--r-- | arch/mips/kernel/smp-mt.c | 2 | ||||
-rw-r--r-- | arch/mips/kernel/traps.c | 44 | ||||
-rw-r--r-- | arch/mips/kernel/vpe.c | 14 |
9 files changed, 54 insertions, 33 deletions
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index 2f4d7a99bcc..98c5a9737c1 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -32,7 +32,7 @@ static int mips_next_event(unsigned long delta, cnt = read_c0_count(); cnt += delta; write_c0_compare(cnt); - res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0; + res = ((int)(read_c0_count() - cnt) >= 0) ? -ETIME : 0; return res; } diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 71620e19827..68dae7b6b5d 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -905,7 +905,8 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) { decode_configs(c); switch (c->processor_id & 0xff00) { - case PRID_IMP_BMIPS32: + case PRID_IMP_BMIPS32_REV4: + case PRID_IMP_BMIPS32_REV8: c->cputype = CPU_BMIPS32; __cpu_name[cpu] = "Broadcom BMIPS32"; break; @@ -933,10 +934,6 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) __cpu_name[cpu] = "Broadcom BMIPS5000"; c->options |= MIPS_CPU_ULRI; break; - case PRID_IMP_BMIPS4KC: - c->cputype = CPU_4KC; - __cpu_name[cpu] = "MIPS 4Kc"; - break; } } diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 6343b4a5b83..876a75cc376 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -251,14 +251,15 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, SYSCALL_DEFINE1(32_personality, unsigned long, personality) { + unsigned int p = personality & 0xffffffff; int ret; - personality &= 0xffffffff; + if (personality(current->personality) == PER_LINUX32 && - personality == PER_LINUX) - personality = PER_LINUX32; - ret = sys_personality(personality); - if (ret == PER_LINUX32) - ret = PER_LINUX; + personality(p) == PER_LINUX) + p = (p & ~PER_MASK) | PER_LINUX32; + ret = sys_personality(p); + if (ret != -1 && personality(ret) == PER_LINUX32) + ret = (ret & ~PER_MASK) | PER_LINUX; return ret; } diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c index 5c7c6fc0756..183e0d22666 100644 --- a/arch/mips/kernel/perf_event_mipsxx.c +++ b/arch/mips/kernel/perf_event_mipsxx.c @@ -1047,6 +1047,6 @@ init_hw_perf_events(void) return 0; } -arch_initcall(init_hw_perf_events); +early_initcall(init_hw_perf_events); #endif /* defined(CONFIG_CPU_MIPS32)... */ diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 99960940d4a..ae167df73dd 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -142,7 +142,6 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, childregs->regs[7] = 0; /* Clear error flag */ childregs->regs[2] = 0; /* Child gets zero as return value */ - regs->regs[2] = p->pid; if (childregs->cp0_status & ST0_CU0) { childregs->regs[28] = (unsigned long) ti; diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c index e000b278f02..9dbe5836895 100644 --- a/arch/mips/kernel/prom.c +++ b/arch/mips/kernel/prom.c @@ -100,7 +100,7 @@ void __init device_tree_init(void) return; base = virt_to_phys((void *)initial_boot_params); - size = initial_boot_params->totalsize; + size = be32_to_cpu(initial_boot_params->totalsize); /* Before we do anything, lets reserve the dt blob */ reserve_mem_mach(base, size); diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 43e7cdc5ded..c0e81418ba2 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c @@ -153,7 +153,7 @@ static void __cpuinit vsmp_init_secondary(void) { extern int gic_present; - /* This is Malta specific: IPI,performance and timer inetrrupts */ + /* This is Malta specific: IPI,performance and timer interrupts */ if (gic_present) change_c0_status(ST0_IM, STATUSF_IP3 | STATUSF_IP4 | STATUSF_IP6 | STATUSF_IP7); diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 8e9fbe75894..e9710430254 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -83,7 +83,8 @@ extern asmlinkage void handle_mcheck(void); extern asmlinkage void handle_reserved(void); extern int fpu_emulator_cop1Handler(struct pt_regs *xcp, - struct mips_fpu_struct *ctx, int has_fpu); + struct mips_fpu_struct *ctx, int has_fpu, + void *__user *fault_addr); void (*board_be_init)(void); int (*board_be_handler)(struct pt_regs *regs, int is_fixup); @@ -661,12 +662,36 @@ asmlinkage void do_ov(struct pt_regs *regs) force_sig_info(SIGFPE, &info, current); } +static int process_fpemu_return(int sig, void __user *fault_addr) +{ + if (sig == SIGSEGV || sig == SIGBUS) { + struct siginfo si = {0}; + si.si_addr = fault_addr; + si.si_signo = sig; + if (sig == SIGSEGV) { + if (find_vma(current->mm, (unsigned long)fault_addr)) + si.si_code = SEGV_ACCERR; + else + si.si_code = SEGV_MAPERR; + } else { + si.si_code = BUS_ADRERR; + } + force_sig_info(sig, &si, current); + return 1; + } else if (sig) { + force_sig(sig, current); + return 1; + } else { + return 0; + } +} + /* * XXX Delayed fp exceptions when doing a lazy ctx switch XXX */ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) { - siginfo_t info; + siginfo_t info = {0}; if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs), SIGFPE) == NOTIFY_STOP) @@ -675,6 +700,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) if (fcr31 & FPU_CSR_UNI_X) { int sig; + void __user *fault_addr = NULL; /* * Unimplemented operation exception. If we've got the full @@ -690,7 +716,8 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) lose_fpu(1); /* Run the emulator */ - sig = fpu_emulator_cop1Handler(regs, ¤t->thread.fpu, 1); + sig = fpu_emulator_cop1Handler(regs, ¤t->thread.fpu, 1, + &fault_addr); /* * We can't allow the emulated instruction to leave any of @@ -702,8 +729,7 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31) own_fpu(1); /* Using the FPU again. */ /* If something went wrong, signal */ - if (sig) - force_sig(sig, current); + process_fpemu_return(sig, fault_addr); return; } else if (fcr31 & FPU_CSR_INV_X) @@ -996,11 +1022,11 @@ asmlinkage void do_cpu(struct pt_regs *regs) if (!raw_cpu_has_fpu) { int sig; + void __user *fault_addr = NULL; sig = fpu_emulator_cop1Handler(regs, - ¤t->thread.fpu, 0); - if (sig) - force_sig(sig, current); - else + ¤t->thread.fpu, + 0, &fault_addr); + if (!process_fpemu_return(sig, fault_addr)) mt_ase_fp_affinity(); } diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 3eb3cde2f66..6a1fdfef8fd 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -1092,6 +1092,10 @@ static int vpe_open(struct inode *inode, struct file *filp) /* this of-course trashes what was there before... */ v->pbuffer = vmalloc(P_SIZE); + if (!v->pbuffer) { + pr_warning("VPE loader: unable to allocate memory\n"); + return -ENOMEM; + } v->plen = P_SIZE; v->load_addr = NULL; v->len = 0; @@ -1149,10 +1153,9 @@ static int vpe_release(struct inode *inode, struct file *filp) if (ret < 0) v->shared_ptr = NULL; - // cleanup any temp buffers - if (v->pbuffer) - vfree(v->pbuffer); + vfree(v->pbuffer); v->plen = 0; + return ret; } @@ -1169,11 +1172,6 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer, if (v == NULL) return -ENODEV; - if (v->pbuffer == NULL) { - printk(KERN_ERR "VPE loader: no buffer for program\n"); - return -ENOMEM; - } - if ((count + v->len) > v->plen) { printk(KERN_WARNING "VPE loader: elf size too big. Perhaps strip uneeded symbols\n"); |