diff options
| author | Colin Cross <ccross@android.com> | 2011-02-10 21:54:10 +0100 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2011-09-23 08:35:30 +0200 |
| commit | 254056f3b12563c11e6dbcfad2fbfce20a4f3302 (patch) | |
| tree | 4e25156bfe5cc0613a0aaeba91233bf9936a8d92 /arch/arm/include | |
| parent | ARM: Enable CPU_PM notifiers on ARM machines. (diff) | |
| download | linux-254056f3b12563c11e6dbcfad2fbfce20a4f3302.tar.xz linux-254056f3b12563c11e6dbcfad2fbfce20a4f3302.zip | |
ARM: gic: Use cpu pm notifiers to save gic state
When the cpu is powered down in a low power mode, the gic cpu
interface may be reset, and when the cpu cluster is powered
down, the gic distributor may also be reset.
This patch uses CPU_PM_ENTER and CPU_PM_EXIT notifiers to save
and restore the gic cpu interface registers, and the
CPU_CLUSTER_PM_ENTER and CPU_CLUSTER_PM_EXIT notifiers to save
and restore the gic distributor registers.
Original-author: Gary King <gking@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-and-Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Vishwanath BS <vishwanath.bs@ti.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/hardware/gic.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h index 435d3f86c708..c5627057b1c7 100644 --- a/arch/arm/include/asm/hardware/gic.h +++ b/arch/arm/include/asm/hardware/gic.h @@ -46,6 +46,14 @@ struct gic_chip_data { unsigned int irq_offset; void __iomem *dist_base; void __iomem *cpu_base; +#ifdef CONFIG_CPU_PM + u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)]; + u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)]; + u32 saved_spi_target[DIV_ROUND_UP(1020, 4)]; + u32 __percpu *saved_ppi_enable; + u32 __percpu *saved_ppi_conf; +#endif + unsigned int gic_irqs; }; #endif |