1 files changed, 0 insertions, 234 deletions
diff --git a/ANDROID_3.4.5/arch/s390/kernel/machine_kexec.c b/ANDROID_3.4.5/arch/s390/kernel/machine_kexec.c
deleted file mode 100644
index bdad47d5..00000000
--- a/ANDROID_3.4.5/arch/s390/kernel/machine_kexec.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * arch/s390/kernel/machine_kexec.c
- *
- * Copyright IBM Corp. 2005,2011
- *
- * Author(s): Rolf Adelsberger,
- *	      Heiko Carstens <heiko.carstens@de.ibm.com>
- *	      Michael Holzheu <holzheu@linux.vnet.ibm.com>
- */
-
-#include <linux/device.h>
-#include <linux/mm.h>
-#include <linux/kexec.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/ftrace.h>
-#include <linux/debug_locks.h>
-#include <asm/cio.h>
-#include <asm/setup.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/smp.h>
-#include <asm/reset.h>
-#include <asm/ipl.h>
-#include <asm/diag.h>
-#include <asm/asm-offsets.h>
-
-typedef void (*relocate_kernel_t)(kimage_entry_t *, unsigned long);
-
-extern const unsigned char relocate_kernel[];
-extern const unsigned long long relocate_kernel_len;
-
-#ifdef CONFIG_CRASH_DUMP
-
-void *fill_cpu_elf_notes(void *ptr, struct save_area *sa);
-
-/*
- * Create ELF notes for one CPU
- */
-static void add_elf_notes(int cpu)
-{
-	struct save_area *sa = (void *) 4608 + store_prefix();
-	void *ptr;
-
-	memcpy((void *) (4608UL + sa->pref_reg), sa, sizeof(*sa));
-	ptr = (u64 *) per_cpu_ptr(crash_notes, cpu);
-	ptr = fill_cpu_elf_notes(ptr, sa);
-	memset(ptr, 0, sizeof(struct elf_note));
-}
-
-/*
- * Initialize CPU ELF notes
- */
-void setup_regs(void)
-{
-	unsigned long sa = S390_lowcore.prefixreg_save_area + SAVE_AREA_BASE;
-	int cpu, this_cpu;
-
-	this_cpu = smp_find_processor_id(stap());
-	add_elf_notes(this_cpu);
-	for_each_online_cpu(cpu) {
-		if (cpu == this_cpu)
-			continue;
-		if (smp_store_status(cpu))
-			continue;
-		add_elf_notes(cpu);
-	}
-	/* Copy dump CPU store status info to absolute zero */
-	memcpy((void *) SAVE_AREA_BASE, (void *) sa, sizeof(struct save_area));
-}
-
-#endif
-
-/*
- * Start kdump: We expect here that a store status has been done on our CPU
- */
-static void __do_machine_kdump(void *image)
-{
-#ifdef CONFIG_CRASH_DUMP
-	int (*start_kdump)(int) = (void *)((struct kimage *) image)->start;
-
-	__load_psw_mask(PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA);
-	setup_regs();
-	start_kdump(1);
-#endif
-}
-
-/*
- * Check if kdump checksums are valid: We call purgatory with parameter "0"
- */
-static int kdump_csum_valid(struct kimage *image)
-{
-#ifdef CONFIG_CRASH_DUMP
-	int (*start_kdump)(int) = (void *)image->start;
-	int rc;
-
-	__arch_local_irq_stnsm(0xfb); /* disable DAT */
-	rc = start_kdump(0);
-	__arch_local_irq_stosm(0x04); /* enable DAT */
-	return rc ? 0 : -EINVAL;
-#else
-	return -EINVAL;
-#endif
-}
-
-/*
- * Map or unmap crashkernel memory
- */
-static void crash_map_pages(int enable)
-{
-	unsigned long size = resource_size(&crashk_res);
-
-	BUG_ON(crashk_res.start % KEXEC_CRASH_MEM_ALIGN ||
-	       size % KEXEC_CRASH_MEM_ALIGN);
-	if (enable)
-		vmem_add_mapping(crashk_res.start, size);
-	else
-		vmem_remove_mapping(crashk_res.start, size);
-}
-
-/*
- * Map crashkernel memory
- */
-void crash_map_reserved_pages(void)
-{
-	crash_map_pages(1);
-}
-
-/*
- * Unmap crashkernel memory
- */
-void crash_unmap_reserved_pages(void)
-{
-	crash_map_pages(0);
-}
-
-/*
- * Give back memory to hypervisor before new kdump is loaded
- */
-static int machine_kexec_prepare_kdump(void)
-{
-#ifdef CONFIG_CRASH_DUMP
-	if (MACHINE_IS_VM)
-		diag10_range(PFN_DOWN(crashk_res.start),
-			     PFN_DOWN(crashk_res.end - crashk_res.start + 1));
-	return 0;
-#else
-	return -EINVAL;
-#endif
-}
-
-int machine_kexec_prepare(struct kimage *image)
-{
-	void *reboot_code_buffer;
-
-	/* Can't replace kernel image since it is read-only. */
-	if (ipl_flags & IPL_NSS_VALID)
-		return -ENOSYS;
-
-	if (image->type == KEXEC_TYPE_CRASH)
-		return machine_kexec_prepare_kdump();
-
-	/* We don't support anything but the default image type for now. */
-	if (image->type != KEXEC_TYPE_DEFAULT)
-		return -EINVAL;
-
-	/* Get the destination where the assembler code should be copied to.*/
-	reboot_code_buffer = (void *) page_to_phys(image->control_code_page);
-
-	/* Then copy it */
-	memcpy(reboot_code_buffer, relocate_kernel, relocate_kernel_len);
-	return 0;
-}
-
-void machine_kexec_cleanup(struct kimage *image)
-{
-}
-
-void arch_crash_save_vmcoreinfo(void)
-{
-	VMCOREINFO_SYMBOL(lowcore_ptr);
-	VMCOREINFO_SYMBOL(high_memory);
-	VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
-}
-
-void machine_shutdown(void)
-{
-}
-
-/*
- * Do normal kexec
- */
-static void __do_machine_kexec(void *data)
-{
-	relocate_kernel_t data_mover;
-	struct kimage *image = data;
-
-	data_mover = (relocate_kernel_t) page_to_phys(image->control_code_page);
-
-	/* Call the moving routine */
-	(*data_mover)(&image->head, image->start);
-}
-
-/*
- * Reset system and call either kdump or normal kexec
- */
-static void __machine_kexec(void *data)
-{
-	struct kimage *image = data;
-
-	pfault_fini();
-	tracing_off();
-	debug_locks_off();
-	if (image->type == KEXEC_TYPE_CRASH) {
-		lgr_info_log();
-		s390_reset_system(__do_machine_kdump, data);
-	} else {
-		s390_reset_system(__do_machine_kexec, data);
-	}
-	disabled_wait((unsigned long) __builtin_return_address(0));
-}
-
-/*
- * Do either kdump or normal kexec. In case of kdump we first ask
- * purgatory, if kdump checksums are valid.
- */
-void machine_kexec(struct kimage *image)
-{
-	if (image->type == KEXEC_TYPE_CRASH && !kdump_csum_valid(image))
-		return;
-	tracer_disable();
-	smp_send_stop();
-	smp_call_ipl_cpu(__machine_kexec, image);
-}