diff options
| author | Feng Kan <fkan@apm.com> | 2014-07-30 14:56:59 -0700 |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2014-08-19 15:08:07 +0000 |
| commit | 3228950621d92f0f212378f95a6998ef3a1be0bb (patch) | |
| tree | 65909d6760b53af50ee62cc0c7e98154eebfd04a /include/linux/irqchip/arm-gic.h | |
| parent | e5f81539f657af7e9f54ea37986fde8f92acef22 (diff) | |
irqchip: gic: Preserve gic V2 bypass bits in cpu ctrl register
This change is made to preserve the GIC v2 bypass bits in the
GIC_CPU_CTRL register (also known as the GICC_CTLR register in spec).
This code will preserve all bits configured by the bootloader regarding
v2 bypass group bits. In the X-Gene platform, the bypass functionality
is not used and bypass bits should not be changed by the kernel gic
code as it could lead to incorrect behavior.
Signed-off-by: Feng Kan <fkan@apm.com>
Reviewed-by: Vinayak Kale <vkale@apm.com>
Reviewed-by: Anup Patel <apatel@apm.com>
Link: https://lkml.kernel.org/r/1406757419-18729-3-git-send-email-fkan@apm.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'include/linux/irqchip/arm-gic.h')
| -rw-r--r-- | include/linux/irqchip/arm-gic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h index 5cb9d41af5be..13eed92c7d24 100644 --- a/include/linux/irqchip/arm-gic.h +++ b/include/linux/irqchip/arm-gic.h @@ -25,6 +25,7 @@ #define GICC_INT_PRI_THRESHOLD 0xf0 #define GICC_IAR_INT_ID_MASK 0x3ff #define GICC_INT_SPURIOUS 1023 +#define GICC_DIS_BYPASS_MASK 0x1e0 #define GIC_DIST_CTRL 0x000 #define GIC_DIST_CTR 0x004 |