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| author | Paul Burton <paul.burton@imgtec.com> | 2017-08-12 19:49:40 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-30 00:57:27 +0200 |
| commit | d595d423d06071bd7a4892c3c2f16bfe1d5b3a85 (patch) | |
| tree | babe4bf15082b7528e8c316dc0ec8630b0e24df9 /arch/mips/sgi-ip27 | |
| parent | 68923cdc2eb34124d77bc27f7945d7ff16b236dd (diff) | |
| download | linux-d595d423d06071bd7a4892c3c2f16bfe1d5b3a85.tar.gz linux-d595d423d06071bd7a4892c3c2f16bfe1d5b3a85.tar.bz2 linux-d595d423d06071bd7a4892c3c2f16bfe1d5b3a85.zip | |
MIPS: SMP: Allow boot_secondary SMP op to return errors
Allow the boot_secondary SMP op to return an error to __cpu_up(), which
will in turn return it to its caller.
This will allow SMP implementations to return errors quickly in cases
they they know have failed, rather than relying upon __cpu_up()
eventually timing out waiting for the cpu_running completion.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17014/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sgi-ip27')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-smp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index 85ee974a1582..545446dfe7fa 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -195,7 +195,7 @@ static void ip27_smp_finish(void) * set sp to the kernel stack of the newly created idle process, gp to the proc * struct so that current_thread_info() will work. */ -static void ip27_boot_secondary(int cpu, struct task_struct *idle) +static int ip27_boot_secondary(int cpu, struct task_struct *idle) { unsigned long gp = (unsigned long)task_thread_info(idle); unsigned long sp = __KSTK_TOS(idle); @@ -203,6 +203,7 @@ static void ip27_boot_secondary(int cpu, struct task_struct *idle) LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu), (launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap), 0, (void *) sp, (void *) gp); + return 0; } static void __init ip27_smp_setup(void) |