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Diffstat (limited to 'arch/ppc/kernel/machine_kexec.c')
-rw-r--r--arch/ppc/kernel/machine_kexec.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/ppc/kernel/machine_kexec.c b/arch/ppc/kernel/machine_kexec.c
deleted file mode 100644
index a469ba438cb..00000000000
--- a/arch/ppc/kernel/machine_kexec.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * machine_kexec.c - handle transition of Linux booting another kernel
- * Copyright (C) 2002-2003 Eric Biederman <ebiederm@xmission.com>
- *
- * GameCube/ppc32 port Copyright (C) 2004 Albert Herranz
- *
- * This source code is licensed under the GNU General Public License,
- * Version 2. See the file COPYING for more details.
- */
-
-#include <linux/mm.h>
-#include <linux/kexec.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/mmu_context.h>
-#include <asm/io.h>
-#include <asm/hw_irq.h>
-#include <asm/cacheflush.h>
-#include <asm/machdep.h>
-
-typedef NORET_TYPE void (*relocate_new_kernel_t)(
- unsigned long indirection_page,
- unsigned long reboot_code_buffer,
- unsigned long start_address) ATTRIB_NORET;
-
-extern const unsigned char relocate_new_kernel[];
-extern const unsigned int relocate_new_kernel_size;
-
-void machine_shutdown(void)
-{
- if (ppc_md.machine_shutdown)
- ppc_md.machine_shutdown();
-}
-
-void machine_crash_shutdown(struct pt_regs *regs)
-{
- if (ppc_md.machine_crash_shutdown)
- ppc_md.machine_crash_shutdown();
-}
-
-/*
- * Do what every setup is needed on image and the
- * reboot code buffer to allow us to avoid allocations
- * later.
- */
-int machine_kexec_prepare(struct kimage *image)
-{
- if (ppc_md.machine_kexec_prepare)
- return ppc_md.machine_kexec_prepare(image);
- /*
- * Fail if platform doesn't provide its own machine_kexec_prepare
- * implementation.
- */
- return -ENOSYS;
-}
-
-void machine_kexec_cleanup(struct kimage *image)
-{
- if (ppc_md.machine_kexec_cleanup)
- ppc_md.machine_kexec_cleanup(image);
-}
-
-/*
- * Do not allocate memory (or fail in any way) in machine_kexec().
- * We are past the point of no return, committed to rebooting now.
- */
-NORET_TYPE void machine_kexec(struct kimage *image)
-{
- if (ppc_md.machine_kexec)
- ppc_md.machine_kexec(image);
- else {
- /*
- * Fall back to normal restart if platform doesn't provide
- * its own kexec function, and user insist to kexec...
- */
- machine_restart(NULL);
- }
- for(;;);
-}
-
-/*
- * This is a generic machine_kexec function suitable at least for
- * non-OpenFirmware embedded platforms.
- * It merely copies the image relocation code to the control page and
- * jumps to it.
- * A platform specific function may just call this one.
- */
-void machine_kexec_simple(struct kimage *image)
-{
- unsigned long page_list;
- unsigned long reboot_code_buffer, reboot_code_buffer_phys;
- relocate_new_kernel_t rnk;
-
- /* Interrupts aren't acceptable while we reboot */
- local_irq_disable();
-
- page_list = image->head;
-
- /* we need both effective and real address here */
- reboot_code_buffer =
- (unsigned long)page_address(image->control_code_page);
- reboot_code_buffer_phys = virt_to_phys((void *)reboot_code_buffer);
-
- /* copy our kernel relocation code to the control code page */
- memcpy((void *)reboot_code_buffer, relocate_new_kernel,
- relocate_new_kernel_size);
-
- flush_icache_range(reboot_code_buffer,
- reboot_code_buffer + KEXEC_CONTROL_CODE_SIZE);
- printk(KERN_INFO "Bye!\n");
-
- /* now call it */
- rnk = (relocate_new_kernel_t) reboot_code_buffer;
- (*rnk)(page_list, reboot_code_buffer_phys, image->start);
-}
-