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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2015-03-18 13:09:57 (GMT)
committerKukjin Kim <kgene@kernel.org>2015-06-05 17:17:57 (GMT)
commitaf9971144dde808338919cb4f3849ea2ac60739f (patch)
tree99b42bff1f28ecdf201a547bbd0a2dc996a95583 /arch/arm/mach-exynos/common.h
parent1225ad72866b440574a22372b9edceb035632f2b (diff)
downloadlinux-af9971144dde808338919cb4f3849ea2ac60739f.tar.xz
ARM: EXYNOS: add coupled cpuidle support for Exynos3250
The following patch adds coupled cpuidle support for Exynos3250 to an existing cpuidle-exynos driver. As a result it enables AFTR mode to be used by default on Exynos3250 without the need to hot unplug CPU1 first. The detailed changelog: - use exynos_[get,set]_boot_addr() in cpuidle-exynos.c and then make cpu_boot_reg_base() static - use exynos_core_restart() in exynos_cpu0_enter_aftr() - add missing smp_rmb() to exynos_cpu0_enter_aftr() (to make the code in-sync with the platform SMP code) - add call_firmware_op(cpu_boot, 1) to exynos_cpu0_enter_aftr() - use dsb_sev() instead of IPI wakeup for Exynos3250 in exynos_cpu0_enter_aftr() - add CPU0 vs CPU1 synchronization based on S5P_PMU_SPARE2 register for Exynos3250 to cpuidle-exynos.c - add flush_cache_all() for CPU1/0 before powerdown/AFTR for Exynos3250 to exynos_wfi_finisher()/exynos_do_idle() Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>
Diffstat (limited to 'arch/arm/mach-exynos/common.h')
-rw-r--r--arch/arm/mach-exynos/common.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 5f5cd56..e3a9256 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -163,7 +163,9 @@ extern void exynos_set_delayed_reset_assertion(bool enable);
extern void s5p_init_cpu(void __iomem *cpuid_addr);
extern unsigned int samsung_rev(void);
-extern void __iomem *cpu_boot_reg_base(void);
+extern void exynos_core_restart(u32 core_id);
+extern int exynos_set_boot_addr(u32 core_id, unsigned long boot_addr);
+extern int exynos_get_boot_addr(u32 core_id, unsigned long *boot_addr);
static inline void pmu_raw_writel(u32 val, u32 offset)
{