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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-10-29 12:13:58 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2019-11-21 15:41:34 +1100
commit793b08e2efff3ec020c5c5861d00ed394fcdd488 (patch)
tree0a0ccae4f55def043a319f6b1654d558d0254a53 /arch/powerpc/kernel/machine_kexec_32.c
parent9f7bd9201521b3ad11e96887550dd3e835ba01cb (diff)
downloadlinux-793b08e2efff3ec020c5c5861d00ed394fcdd488.tar.bz2
powerpc/kexec: Move kexec files into a dedicated subdir.
arch/powerpc/kernel/ contains 8 files dedicated to kexec. Move them into a dedicated subdirectory. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [mpe: Move to a/p/kexec, drop the 'machine' naming and use 'core' instead] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/afbef97ec6a978574a5cf91a4441000e0a9da42a.1572351221.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec_32.c')
-rw-r--r--arch/powerpc/kernel/machine_kexec_32.c69
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/powerpc/kernel/machine_kexec_32.c b/arch/powerpc/kernel/machine_kexec_32.c
deleted file mode 100644
index bf9f1f906d64..000000000000
--- a/arch/powerpc/kernel/machine_kexec_32.c
+++ /dev/null
@@ -1,69 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * PPC32 code to handle Linux booting another kernel.
- *
- * Copyright (C) 2002-2003 Eric Biederman <ebiederm@xmission.com>
- * GameCube/ppc32 port Copyright (C) 2004 Albert Herranz
- * Copyright (C) 2005 IBM Corporation.
- */
-
-#include <linux/kexec.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <asm/cacheflush.h>
-#include <asm/hw_irq.h>
-#include <asm/io.h>
-
-typedef void (*relocate_new_kernel_t)(
- unsigned long indirection_page,
- unsigned long reboot_code_buffer,
- unsigned long start_address) __noreturn;
-
-/*
- * 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 default_machine_kexec(struct kimage *image)
-{
- extern const unsigned int relocate_new_kernel_size;
- 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();
-
- /* mask each interrupt so we are in a more sane state for the
- * kexec kernel */
- machine_kexec_mask_interrupts();
-
- 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_PAGE_SIZE);
- printk(KERN_INFO "Bye!\n");
-
- if (!IS_ENABLED(CONFIG_FSL_BOOKE) && !IS_ENABLED(CONFIG_44x))
- relocate_new_kernel(page_list, reboot_code_buffer_phys, image->start);
-
- /* now call it */
- rnk = (relocate_new_kernel_t) reboot_code_buffer;
- (*rnk)(page_list, reboot_code_buffer_phys, image->start);
-}
-
-int default_machine_kexec_prepare(struct kimage *image)
-{
- return 0;
-}