diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:32:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:32:44 +0100 |
| commit | 8c5db92a705d9e2c986adec475980d1120fa07b4 (patch) | |
| tree | 9f0eea56889819707c0a1a8eb5b1fb2db3cdaf3d /arch/mips/kernel | |
| parent | ca5d376e17072c1b60c3fee66f3be58ef018952d (diff) | |
| parent | e4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff) | |
Merge branch 'linus' into locking/core, to resolve conflicts
Conflicts:
include/linux/compiler-clang.h
include/linux/compiler-gcc.h
include/linux/compiler-intel.h
include/uapi/linux/stddef.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/kernel')
31 files changed, 50 insertions, 21 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 07f0f4a4b562..f10e1e15e1c6 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the Linux/MIPS kernel. # diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c index a670c0c11875..c1cd41456d42 100644 --- a/arch/mips/kernel/asm-offsets.c +++ b/arch/mips/kernel/asm-offsets.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * asm-offsets.c: Calculate pt_regs and task_struct offsets. * diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c index 4a2ff3953b99..89b234844534 100644 --- a/arch/mips/kernel/binfmt_elfn32.c +++ b/arch/mips/kernel/binfmt_elfn32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Support for n32 Linux/MIPS ELF binaries. * Author: Ralf Baechle (ralf@linux-mips.org) diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c index 3916404e7fd1..a88c59db3d48 100644 --- a/arch/mips/kernel/binfmt_elfo32.c +++ b/arch/mips/kernel/binfmt_elfo32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Support for o32 Linux/MIPS ELF binaries. * Author: Ralf Baechle (ralf@linux-mips.org) diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c index 7730f1d3434f..0b9535bc2c53 100644 --- a/arch/mips/kernel/cmpxchg.c +++ b/arch/mips/kernel/cmpxchg.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2017 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/cps-vec-ns16550.S b/arch/mips/kernel/cps-vec-ns16550.S index 6d246ad05638..b37af23a5358 100644 --- a/arch/mips/kernel/cps-vec-ns16550.S +++ b/arch/mips/kernel/cps-vec-ns16550.S @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S index d173b49f212d..c7ed26029cbb 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c index ca25cd393b1c..d455363d51c3 100644 --- a/arch/mips/kernel/crash.c +++ b/arch/mips/kernel/crash.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/kernel.h> #include <linux/smp.h> #include <linux/reboot.h> diff --git a/arch/mips/kernel/crash_dump.c b/arch/mips/kernel/crash_dump.c index 77ee99a2d0aa..a8657d29c62e 100644 --- a/arch/mips/kernel/crash_dump.c +++ b/arch/mips/kernel/crash_dump.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/highmem.h> #include <linux/bootmem.h> #include <linux/crash_dump.h> diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c index 0828d6d963b7..731325a61a78 100644 --- a/arch/mips/kernel/elf.c +++ b/arch/mips/kernel/elf.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c index 9d9b8fbae202..99285be0e088 100644 --- a/arch/mips/kernel/ftrace.c +++ b/arch/mips/kernel/ftrace.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Code for replacing ftrace calls with jumps. * diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c index c5bc344fc745..5f209f111e59 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/i8253.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * i8253.c 8253/PIT functions * diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index b01bdef101a8..b332f6fc1e72 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Conversion between 32-bit and 64-bit native system calls. * diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c index e91c8c4e2eb5..dd5567b1e305 100644 --- a/arch/mips/kernel/mips-cm.c +++ b/arch/mips/kernel/mips-cm.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c index f66b05ebf637..19c88d770054 100644 --- a/arch/mips/kernel/mips-cpc.c +++ b/arch/mips/kernel/mips-cpc.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c index 8cab633e0e5a..a7c0f97e4b0d 100644 --- a/arch/mips/kernel/mips-mt-fpaff.c +++ b/arch/mips/kernel/mips-mt-fpaff.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * General MIPS MT support routines, usable in AP/SP and SMVP. * Copyright (C) 2005 Mips Technologies, Inc diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c index 88b1ef5f868a..efaa2527657d 100644 --- a/arch/mips/kernel/mips-mt.c +++ b/arch/mips/kernel/mips-mt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * General MIPS MT support routines, usable in AP/SP and SMVP. * Copyright (C) 2005 Mips Technologies, Inc diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c index 1d2996cd58da..421e06dfee72 100644 --- a/arch/mips/kernel/pm-cps.c +++ b/arch/mips/kernel/pm-cps.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 diff --git a/arch/mips/kernel/probes-common.h b/arch/mips/kernel/probes-common.h index dd08e41134b6..d2bf77b18822 100644 --- a/arch/mips/kernel/probes-common.h +++ b/arch/mips/kernel/probes-common.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Marcin Nowakowski <marcin.nowakowski@imgtec.com> + * Author: Marcin Nowakowski <marcin.nowakowski@mips.com> * * 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 diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index bd9bf528f19b..b2de408a259e 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 1995, 1996, 2001 Ralf Baechle * Copyright (C) 2001, 2004 MIPS Technologies, Inc. diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S index e57703b1de50..665897139f30 100644 --- a/arch/mips/kernel/r2300_switch.S +++ b/arch/mips/kernel/r2300_switch.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * r2300_switch.S: R2300 specific task switching code. * diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c index 2d1a0c438771..cbf4cc0b0b6c 100644 --- a/arch/mips/kernel/relocate.c +++ b/arch/mips/kernel/relocate.c @@ -6,7 +6,7 @@ * Support for Kernel relocation at boot time * * Copyright (C) 2015, Imagination Technologies Ltd. - * Authors: Matt Redfearn (matt.redfearn@imgtec.com) + * Authors: Matt Redfearn (matt.redfearn@mips.com) */ #include <asm/bootinfo.h> #include <asm/cacheflush.h> diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c index 05295a4909f1..a2322009cac3 100644 --- a/arch/mips/kernel/smp-cmp.c +++ b/arch/mips/kernel/smp-cmp.c @@ -19,7 +19,7 @@ #undef DEBUG #include <linux/kernel.h> -#include <linux/sched.h> +#include <linux/sched/task_stack.h> #include <linux/smp.h> #include <linux/cpumask.h> #include <linux/interrupt.h> @@ -50,8 +50,8 @@ static void cmp_init_secondary(void) #ifdef CONFIG_MIPS_MT_SMP if (cpu_has_mipsmt) - c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & - TCBIND_CURVPE; + cpu_set_vpe_id(c, (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & + TCBIND_CURVPE); #endif } diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 0063122c85da..ecc1a853f48d 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton <paul.burton@imgtec.com> + * Author: Paul Burton <paul.burton@mips.com> * * 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 @@ -306,7 +306,7 @@ static int cps_boot_secondary(int cpu, struct task_struct *idle) int err; /* We don't yet support booting CPUs in other clusters */ - if (cpu_cluster(&cpu_data[cpu]) != cpu_cluster(¤t_cpu_data)) + if (cpu_cluster(&cpu_data[cpu]) != cpu_cluster(&raw_current_cpu_data)) return -ENOSYS; vpe_cfg->pc = (unsigned long)&smp_bootstrap; diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index bbe19b64def5..88be966d3e61 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -42,7 +42,7 @@ #include <asm/processor.h> #include <asm/idle.h> #include <asm/r4k-timer.h> -#include <asm/mips-cpc.h> +#include <asm/mips-cps.h> #include <asm/mmu_context.h> #include <asm/time.h> #include <asm/setup.h> @@ -66,6 +66,7 @@ EXPORT_SYMBOL(cpu_sibling_map); cpumask_t cpu_core_map[NR_CPUS] __read_mostly; EXPORT_SYMBOL(cpu_core_map); +static DECLARE_COMPLETION(cpu_starting); static DECLARE_COMPLETION(cpu_running); /* @@ -374,6 +375,12 @@ asmlinkage void start_secondary(void) cpumask_set_cpu(cpu, &cpu_coherent_mask); notify_cpu_starting(cpu); + /* Notify boot CPU that we're starting & ready to sync counters */ + complete(&cpu_starting); + + synchronise_count_slave(cpu); + + /* The CPU is running and counters synchronised, now mark it online */ set_cpu_online(cpu, true); set_cpu_sibling_map(cpu); @@ -381,8 +388,11 @@ asmlinkage void start_secondary(void) calculate_cpu_foreign_map(); + /* + * Notify boot CPU that we're up & online and it can safely return + * from __cpu_up + */ complete(&cpu_running); - synchronise_count_slave(cpu); /* * irq will be enabled in ->smp_finish(), enabling it too early @@ -445,17 +455,17 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) if (err) return err; - /* - * We must check for timeout here, as the CPU will not be marked - * online until the counters are synchronised. - */ - if (!wait_for_completion_timeout(&cpu_running, + /* Wait for CPU to start and be ready to sync counters */ + if (!wait_for_completion_timeout(&cpu_starting, msecs_to_jiffies(1000))) { pr_crit("CPU%u: failed to start\n", cpu); return -EIO; } synchronise_count_master(cpu); + + /* Wait for CPU to finish startup & mark itself online before return */ + wait_for_completion(&cpu_running); return 0; } diff --git a/arch/mips/kernel/spinlock_test.c b/arch/mips/kernel/spinlock_test.c index f7d86955d1b8..eaed550e79a2 100644 --- a/arch/mips/kernel/spinlock_test.c +++ b/arch/mips/kernel/spinlock_test.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/init.h> #include <linux/kthread.h> #include <linux/hrtimer.h> diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c index 1df1160b6a47..f2973ce87f53 100644 --- a/arch/mips/kernel/sync-r4k.c +++ b/arch/mips/kernel/sync-r4k.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Count register synchronisation. * diff --git a/arch/mips/kernel/sysrq.c b/arch/mips/kernel/sysrq.c index 5f055393092d..e5a2a6ab71ac 100644 --- a/arch/mips/kernel/sysrq.c +++ b/arch/mips/kernel/sysrq.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * MIPS specific sysrq operations. * diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c index cf3eb61fad12..cd3e1f82e1a5 100644 --- a/arch/mips/kernel/topology.c +++ b/arch/mips/kernel/topology.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/cpu.h> #include <linux/cpumask.h> #include <linux/init.h> diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c index e99e3fae5326..f7a0645ccb82 100644 --- a/arch/mips/kernel/uprobes.c +++ b/arch/mips/kernel/uprobes.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/highmem.h> #include <linux/kdebug.h> #include <linux/types.h> diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index 8ca2371aa684..971a504001c2 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <asm/asm-offsets.h> #include <asm/thread_info.h> |