diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2014-05-28 19:00:14 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-29 15:08:23 +0200 |
| commit | 2e2d663d2dd64ffe9855be0b35aa221c9b8139f2 (patch) | |
| tree | 508667aa6fbab564e7875d3953671265d0176e69 /arch/mips/mm/tlb-r4k.c | |
| parent | 5ec79bf919ddb53fd98893b7217897c839aa19cc (diff) | |
| parent | 322014531e1fac4674b8eef67e4f80aca1e9f003 (diff) | |
Merge branch 'wip-mips-pm' of https://github.com/paulburton/linux into mips-for-linux-next
Diffstat (limited to 'arch/mips/mm/tlb-r4k.c')
| -rw-r--r-- | arch/mips/mm/tlb-r4k.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 403fa804e4f4..3914e27456f2 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -8,6 +8,7 @@ * Carsten Langgaard, carstenl@mips.com * Copyright (C) 2002 MIPS Technologies, Inc. All rights reserved. */ +#include <linux/cpu_pm.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/smp.h> @@ -399,7 +400,10 @@ static int __init set_ntlb(char *str) __setup("ntlb=", set_ntlb); -void tlb_init(void) +/* + * Configure TLB (for init or after a CPU has been powered off). + */ +static void r4k_tlb_configure(void) { /* * You should never change this register: @@ -431,6 +435,11 @@ void tlb_init(void) local_flush_tlb_all(); /* Did I tell you that ARC SUCKS? */ +} + +void tlb_init(void) +{ + r4k_tlb_configure(); if (ntlb) { if (ntlb > 1 && ntlb <= current_cpu_data.tlbsize) { @@ -444,3 +453,26 @@ void tlb_init(void) build_tlb_refill_handler(); } + +static int r4k_tlb_pm_notifier(struct notifier_block *self, unsigned long cmd, + void *v) +{ + switch (cmd) { + case CPU_PM_ENTER_FAILED: + case CPU_PM_EXIT: + r4k_tlb_configure(); + break; + } + + return NOTIFY_OK; +} + +static struct notifier_block r4k_tlb_pm_notifier_block = { + .notifier_call = r4k_tlb_pm_notifier, +}; + +static int __init r4k_tlb_init_pm(void) +{ + return cpu_pm_register_notifier(&r4k_tlb_pm_notifier_block); +} +arch_initcall(r4k_tlb_init_pm); |