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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-25 10:18:27 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-25 10:18:27 +0200
commit1bc67188c3843b8e16caaa8624beeb0e2823c1f8 (patch)
tree76299c9a161e2f179bf8bbd6c2b6c60191a9c76d /arch/arm/kernel/machine_kexec.c
parent36b8d186e6cc8e32cb5227f5645a58e1bc0af190 (diff)
parentbdf4e9482360a3ddc1619efbd5d1c928ede8c3fa (diff)
Merge branch 'for-linus' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'for-linus' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (81 commits) ARM: 7133/1: SMP: fix per cpu timer setup before the cpu is marked online ARM: 7129/1: Add __arm_ioremap_exec for mapping external memory as MT_MEMORY ARM: 7136/1: pl330: Fix a race condition ARM: smp: fix clipping of number of CPUs ARM: 7137/1: Fix error upon adding LL debug ARM: Add a few machine types to mach-types ARM: 7130/1: dev_archdata: add private iommu extension ARM: 7125/1: Add unwinding annotations for 64bit division functions ARM: 7120/1: remove bashism in check for multiple zreladdrs ARM: 7118/1: rename temp variable in read*_relaxed() ARM: 6217/4: mach-realview: expose PB1176 ROM using physmap and map_rom ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage ARM: 7062/1: cache: detect PIPT I-cache using CTR ARM: platform fixups: remove mdesc argument to fixup function ARM: 7017/1: Use generic BUG() handler ARM: 7102/1: mach-integrator: update defconfig ARM: 7087/2: mach-integrator: get timer frequency from clock ARM: 7086/2: mach-integrator: modernize clock event registration ARM: 7085/2: mach-integrator: clockevent supports oneshot mode ARM: 7084/1: mach-integrator: retire some timer macros ...
Diffstat (limited to 'arch/arm/kernel/machine_kexec.c')
-rw-r--r--arch/arm/kernel/machine_kexec.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index e59bbd496c3..c1b4463dcc8 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -32,6 +32,24 @@ static atomic_t waiting_for_crash_ipi;
int machine_kexec_prepare(struct kimage *image)
{
+ unsigned long page_list;
+ void *reboot_code_buffer;
+ page_list = image->head & PAGE_MASK;
+
+ reboot_code_buffer = page_address(image->control_code_page);
+
+ /* Prepare parameters for reboot_code_buffer*/
+ kexec_start_address = image->start;
+ kexec_indirection_page = page_list;
+ kexec_mach_type = machine_arch_type;
+ kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
+
+ /* copy our kernel relocation code to the control code page */
+ memcpy(reboot_code_buffer,
+ relocate_new_kernel, relocate_new_kernel_size);
+
+ flush_icache_range((unsigned long) reboot_code_buffer,
+ (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
return 0;
}
@@ -82,31 +100,14 @@ void (*kexec_reinit)(void);
void machine_kexec(struct kimage *image)
{
- unsigned long page_list;
unsigned long reboot_code_buffer_phys;
void *reboot_code_buffer;
-
- page_list = image->head & PAGE_MASK;
-
/* we need both effective and real address here */
reboot_code_buffer_phys =
page_to_pfn(image->control_code_page) << PAGE_SHIFT;
reboot_code_buffer = page_address(image->control_code_page);
- /* Prepare parameters for reboot_code_buffer*/
- kexec_start_address = image->start;
- kexec_indirection_page = page_list;
- kexec_mach_type = machine_arch_type;
- kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
-
- /* copy our kernel relocation code to the control code page */
- memcpy(reboot_code_buffer,
- relocate_new_kernel, relocate_new_kernel_size);
-
-
- flush_icache_range((unsigned long) reboot_code_buffer,
- (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
printk(KERN_INFO "Bye!\n");
if (kexec_reinit)