msm: pm-8x60: Setup memory for save/restore cpu registers early
Cores can be offlined early in the boot cycle by certain kernel
drivers.
Ensure that the memory to save and restore the cpu registers is
ready and available early during the boot procedure.
CRs-Fixed: 460083
Change-Id: I925372f066386ceb1e85184d4c58863835c3e88e
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
diff --git a/arch/arm/mach-msm/pm-8x60.c b/arch/arm/mach-msm/pm-8x60.c
index 8136a42..c931ac7 100644
--- a/arch/arm/mach-msm/pm-8x60.c
+++ b/arch/arm/mach-msm/pm-8x60.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -1114,18 +1114,11 @@
},
};
-static int __init msm_pm_init(void)
+static int __init msm_pm_setup_saved_state(void)
{
pgd_t *pc_pgd;
pmd_t *pmd;
unsigned long pmdval;
- enum msm_pm_time_stats_id enable_stats[] = {
- MSM_PM_STAT_IDLE_WFI,
- MSM_PM_STAT_RETENTION,
- MSM_PM_STAT_IDLE_STANDALONE_POWER_COLLAPSE,
- MSM_PM_STAT_IDLE_POWER_COLLAPSE,
- MSM_PM_STAT_SUSPEND,
- };
unsigned long exit_phys;
/* Page table for cores to come back up safely. */
@@ -1166,6 +1159,20 @@
clean_caches((unsigned long)&msm_pm_pc_pgd, sizeof(msm_pm_pc_pgd),
virt_to_phys(&msm_pm_pc_pgd));
+ return 0;
+}
+core_initcall(msm_pm_setup_saved_state);
+
+static int __init msm_pm_init(void)
+{
+ enum msm_pm_time_stats_id enable_stats[] = {
+ MSM_PM_STAT_IDLE_WFI,
+ MSM_PM_STAT_RETENTION,
+ MSM_PM_STAT_IDLE_STANDALONE_POWER_COLLAPSE,
+ MSM_PM_STAT_IDLE_POWER_COLLAPSE,
+ MSM_PM_STAT_SUSPEND,
+ };
+
msm_pm_mode_sysfs_add();
msm_pm_add_stats(enable_stats, ARRAY_SIZE(enable_stats));