tree cb96d4ecbb0c04e7c25a0b08b2dc7f979391a1dc
parent 9a6655e49fd98f3748bb80da20705448aad9ee57
author Thomas Gleixner <[tglx@linutronix.de]> 1280590566 +0530
committer Santosh Shilimkar <santosh.shilimkar@ti.com> 1288073396 +0530

arm: Disable outer (L2) cache in kexec

kexec does not disable the outer cache before disabling the inner
caches in cpu_proc_fin(). So L2 is enabled across the kexec jump. When
the new kernel enables chaches again, it randomly crashes.

Disabling L2 before calling cpu_proc_fin() cures the problem.

Disabling L2 requires the following new functions: flush_all(),
inv_all() and disable(). Add them to outer_cache_fns and call them
from the kexec code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>