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| author |   Michael Neuling <mikey@neuling.org> | 2013-04-24 21:00:37 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-04-26 16:08:17 +1000 |
| commit | 8c2a381734fc9718f127f4aba958e8a7958d4028 (patch) | |
| tree | 65fc9f395647f12b206462c085c486886eb3f77c /arch/powerpc/kernel/cpu_setup_power.S | |
| parent | powerpc: Add isync to copy_and_flush (diff) | |
| download | linux-dev-8c2a381734fc9718f127f4aba958e8a7958d4028.tar.xz linux-dev-8c2a381734fc9718f127f4aba958e8a7958d4028.zip | |
powerpc/power8: Fix secondary CPUs hanging on boot for HV=0
In __restore_cpu_power8 we determine if we are HV and if not, we return
before setting HV only resources.
Unfortunately we forgot to restore the link register from r11 before
returning.
This will happen on boot and with secondary CPUs not coming online.
This adds the missing link register restore.
Signed-off-by: Michael Neuling <mikey@neuling.org>
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/cpu_setup_power.S')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_power.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index 2e6ad1180e9c..4daa5b799010 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -67,6 +67,7 @@ _GLOBAL(__restore_cpu_power8) bl __init_FSCR mfmsr r3 rldicl. r0,r3,4,63 + mtlr r11 beqlr li r0,0 mtspr SPRN_LPID,r0 |