xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: tegra: add a flag for tegra_disable_clean_inv_dcache to do LoUIS or ALL

Browse Source 
Adding a flag for tegra_disable_clean_inv_dcache to flush cache as LoUIS
or ALL. After this patch, the v7_flush_dcache_louis is used for CPU hotplug
and CPU suspend in CPU power down (e.g. CPU idle power-down mode) case. And
the v7_flush_dcache_all is used for CPU cluster power down (e.g. suspend to
LP2 mode).

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Joseph Lo
2013-07-03 17:50:38 +08:00
committed by Stephen Warren
parent c04c77540a
commit ac2527bfc2
5 changed files with 14 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/mach-tegra/sleep.h
View File

@@ -41,6 +41,10 @@
#define CPU_NOT_RESETTABLE 0
#endif
/* flag of tegra_disable_clean_inv_dcache to do LoUIS or all */
#define TEGRA_FLUSH_CACHE_LOUIS 0
#define TEGRA_FLUSH_CACHE_ALL 1
#ifdef __ASSEMBLY__
/* returns the offset of the flow controller halt register for a cpu */
.macro cpu_to_halt_reg rd, rcpu
@@ -144,7 +148,7 @@ void tegra_pen_lock(void);
void tegra_pen_unlock(void);
void tegra_resume(void);
int tegra_sleep_cpu_finish(unsigned long);
void tegra_disable_clean_inv_dcache(void);
void tegra_disable_clean_inv_dcache(u32 flag);
#ifdef CONFIG_HOTPLUG_CPU
void tegra20_hotplug_shutdown(void);