Commit d470c05b authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 

* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix a TRACE_IRQS_OFF typo.
  sh: Optimize the setup_rt_frame() I-cache flush.
  sh: Populate initial secondary CPU info from boot_cpu_data.
  sh: Tidy up SMP cpuinfo.
  sh: Use boot_cpu_data for FPU tests in sigcontext paths.
  sh: ftrace: Fix up syscall tracepoint support.
  sh: force dcache flush if dcache_dirty bit set.
  sh: update die() output.
parents ee67e6cb 457b6461

arch/sh/kernel/entry-common.S

+1 −1
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ noresched: 
ENTRY(resume_userspace)

	! r8: current_thread_info

	cli

	TRACE_IRQS_OfF

	TRACE_IRQS_OFF

	mov.l	@(TI_FLAGS,r8), r0		! current_thread_info->flags

	tst	#(_TIF_WORK_MASK & 0xff), r0

	bt/s	__restore_all

arch/sh/kernel/ftrace.c

+27 −10
Original line number Diff line number Diff line
@@ -291,31 +291,48 @@ struct syscall_metadata *syscall_nr_to_meta(int nr) 
	return syscalls_metadata[nr];

}



void arch_init_ftrace_syscalls(void)

int syscall_name_to_nr(char *name)

{

	int i;



	if (!syscalls_metadata)

		return -1;

	for (i = 0; i < NR_syscalls; i++)

		if (syscalls_metadata[i])

			if (!strcmp(syscalls_metadata[i]->name, name))

				return i;

	return -1;

}



void set_syscall_enter_id(int num, int id)

{

	syscalls_metadata[num]->enter_id = id;

}



void set_syscall_exit_id(int num, int id)

{

	syscalls_metadata[num]->exit_id = id;

}



static int __init arch_init_ftrace_syscalls(void)

{

	int i;

	struct syscall_metadata *meta;

	unsigned long **psys_syscall_table = &sys_call_table;

	static atomic_t refs;



	if (atomic_inc_return(&refs) != 1)

		goto end;



	syscalls_metadata = kzalloc(sizeof(*syscalls_metadata) *

					FTRACE_SYSCALL_MAX, GFP_KERNEL);

	if (!syscalls_metadata) {

		WARN_ON(1);

		return;

		return -ENOMEM;

	}



	for (i = 0; i < FTRACE_SYSCALL_MAX; i++) {

		meta = find_syscall_meta(psys_syscall_table[i]);

		syscalls_metadata[i] = meta;

	}

	return;



	/* Paranoid: avoid overflow */

end:

	atomic_dec(&refs);

	return 0;

}

arch_initcall(arch_init_ftrace_syscalls);

#endif /* CONFIG_FTRACE_SYSCALLS */

arch/sh/kernel/setup.c

+2 −0
Original line number Diff line number Diff line
@@ -549,6 +549,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) 


	if (cpu == 0)

		seq_printf(m, "machine\t\t: %s\n", get_system_type());

	else

		seq_printf(m, "\n");



	seq_printf(m, "processor\t: %d\n", cpu);

	seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);

arch/sh/kernel/signal_32.c

+4 −5
Original line number Diff line number Diff line
@@ -145,7 +145,7 @@ static inline int restore_sigcontext_fpu(struct sigcontext __user *sc) 
{

	struct task_struct *tsk = current;



	if (!(current_cpu_data.flags & CPU_HAS_FPU))

	if (!(boot_cpu_data.flags & CPU_HAS_FPU))

		return 0;



	set_used_math();
@@ -158,7 +158,7 @@ static inline int save_sigcontext_fpu(struct sigcontext __user *sc, 
{

	struct task_struct *tsk = current;



	if (!(current_cpu_data.flags & CPU_HAS_FPU))

	if (!(boot_cpu_data.flags & CPU_HAS_FPU))

		return 0;



	if (!used_math()) {
@@ -199,7 +199,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *r0_p 
#undef COPY



#ifdef CONFIG_SH_FPU

	if (current_cpu_data.flags & CPU_HAS_FPU) {

	if (boot_cpu_data.flags & CPU_HAS_FPU) {

		int owned_fp;

		struct task_struct *tsk = current;
@@ -472,6 +472,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 
		err |= __put_user(OR_R0_R0, &frame->retcode[6]);

		err |= __put_user((__NR_rt_sigreturn), &frame->retcode[7]);

		regs->pr = (unsigned long) frame->retcode;

		flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode));

	}



	if (err)
@@ -497,8 +498,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 
	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",

		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);



	flush_icache_range(regs->pr, regs->pr + sizeof(frame->retcode));



	return 0;



give_sigsegv:

arch/sh/kernel/smp.c

+2 −0
Original line number Diff line number Diff line
@@ -35,6 +35,8 @@ static inline void __init smp_store_cpu_info(unsigned int cpu) 
{

	struct sh_cpuinfo *c = cpu_data + cpu;



	memcpy(c, &boot_cpu_data, sizeof(struct sh_cpuinfo));



	c->loops_per_jiffy = loops_per_jiffy;

}

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