msm: calculate where the movable zone should be on 8960
For DMM to work properly, the memory which we intend
to power off must be placed in the "movable zone"
so that all pages in this memory may be migrated out.
Calculate the start and size of the movable zone -- for
the initial 8960 configuration this coincides with
the maximum size of unstable memory, in future
configurations this might be smaller (so that there
is enough memory in the "normal" zone where unmovable
pages will be placed).
This must be done very early, as the result is
used in sanity_check_meminfo().
Change-Id: I71886cf857cb39a1bd483bd8bc46db61d22b3236
Signed-off-by: Larry Bassel <lbassel@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-msm8960.c b/arch/arm/mach-msm/board-msm8960.c
index 397fc25..b94a5cb 100644
--- a/arch/arm/mach-msm/board-msm8960.c
+++ b/arch/arm/mach-msm/board-msm8960.c
@@ -1034,10 +1034,23 @@
msm8960_reserve_info.bank_size);
}
-static void __init msm8960_reserve(void)
+static void __init place_movable_zone(void)
+{
+ movable_reserved_start = msm8960_reserve_info.low_unstable_address;
+ movable_reserved_size = msm8960_reserve_info.max_unstable_size;
+ pr_info("movable zone start %lx size %lx\n",
+ movable_reserved_start, movable_reserved_size);
+}
+
+static void __init msm8960_early_memory(void)
{
reserve_info = &msm8960_reserve_info;
locate_unstable_memory();
+ place_movable_zone();
+}
+
+static void __init msm8960_reserve(void)
+{
msm_reserve();
}
@@ -4590,6 +4603,7 @@
.timer = &msm_timer,
.init_machine = msm8960_sim_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
MACHINE_START(MSM8960_RUMI3, "QCT MSM8960 RUMI3")
@@ -4599,6 +4613,7 @@
.timer = &msm_timer,
.init_machine = msm8960_rumi3_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
MACHINE_START(MSM8960_CDP, "QCT MSM8960 CDP")
@@ -4608,6 +4623,7 @@
.timer = &msm_timer,
.init_machine = msm8960_cdp_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
MACHINE_START(MSM8960_MTP, "QCT MSM8960 MTP")
@@ -4617,6 +4633,7 @@
.timer = &msm_timer,
.init_machine = msm8960_cdp_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
MACHINE_START(MSM8960_FLUID, "QCT MSM8960 FLUID")
@@ -4626,6 +4643,7 @@
.timer = &msm_timer,
.init_machine = msm8960_cdp_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
MACHINE_START(MSM8960_LIQUID, "QCT MSM8960 LIQUID")
@@ -4635,6 +4653,7 @@
.timer = &msm_timer,
.init_machine = msm8960_cdp_init,
.init_early = msm8960_allocate_memory_regions,
+ .init_very_early = msm8960_early_memory,
MACHINE_END
#ifdef CONFIG_ARCH_MSM8930