summaryrefslogtreecommitdiff
path: root/arch/arm/kernel
diff options
context:
space:
mode:
authorRussell King <rmk+kernel@armlinux.org.uk>2018-05-10 13:07:29 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2018-05-31 10:39:34 +0100
commit9d3a04925deeabb97c8e26d940b501a2873e8af3 (patch)
treee3fb1848b477558d8818301c77f0ed96a44ec1c9 /arch/arm/kernel
parent26602161b5ba795928a5a719fe1d5d9f2ab5c3ef (diff)
ARM: bugs: add support for per-processor bug checking
Add support for per-processor bug checking - each processor function descriptor gains a function pointer for this check, which must not be an __init function. If non-NULL, this will be called whenever a CPU enters the kernel via which ever path (boot CPU, secondary CPU startup, CPU resuming, etc.) This allows processor specific bug checks to validate that workaround bits are properly enabled by firmware via all entry paths to the kernel. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Boot-tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Tony Lindgren <tony@atomide.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/bugs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/kernel/bugs.c b/arch/arm/kernel/bugs.c
index 16e7ba2a9cc4..7be511310191 100644
--- a/arch/arm/kernel/bugs.c
+++ b/arch/arm/kernel/bugs.c
@@ -5,6 +5,10 @@
void check_other_bugs(void)
{
+#ifdef MULTI_CPU
+ if (processor.check_bugs)
+ processor.check_bugs();
+#endif
}
void __init check_bugs(void)