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Diffstat (limited to 'arch/ia64/kernel/machine_kexec.c')
-rw-r--r--arch/ia64/kernel/machine_kexec.c163
1 files changed, 0 insertions, 163 deletions
diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
deleted file mode 100644
index 4db9ca144fa5..000000000000
--- a/arch/ia64/kernel/machine_kexec.c
+++ /dev/null
@@ -1,163 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/ia64/kernel/machine_kexec.c
- *
- * Handle transition of Linux booting another kernel
- * Copyright (C) 2005 Hewlett-Packard Development Comapny, L.P.
- * Copyright (C) 2005 Khalid Aziz <khalid.aziz@hp.com>
- * Copyright (C) 2006 Intel Corp, Zou Nan hai <nanhai.zou@intel.com>
- */
-
-#include <linux/mm.h>
-#include <linux/kexec.h>
-#include <linux/cpu.h>
-#include <linux/irq.h>
-#include <linux/efi.h>
-#include <linux/numa.h>
-#include <linux/mmzone.h>
-
-#include <asm/efi.h>
-#include <asm/numa.h>
-#include <asm/mmu_context.h>
-#include <asm/setup.h>
-#include <asm/delay.h>
-#include <asm/meminit.h>
-#include <asm/processor.h>
-#include <asm/sal.h>
-#include <asm/mca.h>
-
-typedef void (*relocate_new_kernel_t)(
- unsigned long indirection_page,
- unsigned long start_address,
- struct ia64_boot_param *boot_param,
- unsigned long pal_addr) __noreturn;
-
-struct kimage *ia64_kimage;
-
-struct resource efi_memmap_res = {
- .name = "EFI Memory Map",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-struct resource boot_param_res = {
- .name = "Boot parameter",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-
-/*
- * 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)
-{
- void *control_code_buffer;
- const unsigned long *func;
-
- func = (unsigned long *)&relocate_new_kernel;
- /* Pre-load control code buffer to minimize work in kexec path */
- control_code_buffer = page_address(image->control_code_page);
- memcpy((void *)control_code_buffer, (const void *)func[0],
- relocate_new_kernel_size);
- flush_icache_range((unsigned long)control_code_buffer,
- (unsigned long)control_code_buffer + relocate_new_kernel_size);
- ia64_kimage = image;
-
- return 0;
-}
-
-void machine_kexec_cleanup(struct kimage *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.
- */
-static void ia64_machine_kexec(struct unw_frame_info *info, void *arg)
-{
- struct kimage *image = arg;
- relocate_new_kernel_t rnk;
- void *pal_addr = efi_get_pal_addr();
- unsigned long code_addr;
- int ii;
- u64 fp, gp;
- ia64_fptr_t *init_handler = (ia64_fptr_t *)ia64_os_init_on_kdump;
-
- BUG_ON(!image);
- code_addr = (unsigned long)page_address(image->control_code_page);
- if (image->type == KEXEC_TYPE_CRASH) {
- crash_save_this_cpu();
- current->thread.ksp = (__u64)info->sw - 16;
-
- /* Register noop init handler */
- fp = ia64_tpa(init_handler->fp);
- gp = ia64_tpa(ia64_getreg(_IA64_REG_GP));
- ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, fp, gp, 0, fp, gp, 0);
- } else {
- /* Unregister init handlers of current kernel */
- ia64_sal_set_vectors(SAL_VECTOR_OS_INIT, 0, 0, 0, 0, 0, 0);
- }
-
- /* Unregister mca handler - No more recovery on current kernel */
- ia64_sal_set_vectors(SAL_VECTOR_OS_MCA, 0, 0, 0, 0, 0, 0);
-
- /* Interrupts aren't acceptable while we reboot */
- local_irq_disable();
-
- /* Mask CMC and Performance Monitor interrupts */
- ia64_setreg(_IA64_REG_CR_PMV, 1 << 16);
- ia64_setreg(_IA64_REG_CR_CMCV, 1 << 16);
-
- /* Mask ITV and Local Redirect Registers */
- ia64_set_itv(1 << 16);
- ia64_set_lrr0(1 << 16);
- ia64_set_lrr1(1 << 16);
-
- /* terminate possible nested in-service interrupts */
- for (ii = 0; ii < 16; ii++)
- ia64_eoi();
-
- /* unmask TPR and clear any pending interrupts */
- ia64_setreg(_IA64_REG_CR_TPR, 0);
- ia64_srlz_d();
- while (ia64_get_ivr() != IA64_SPURIOUS_INT_VECTOR)
- ia64_eoi();
- rnk = (relocate_new_kernel_t)&code_addr;
- (*rnk)(image->head, image->start, ia64_boot_param,
- GRANULEROUNDDOWN((unsigned long) pal_addr));
- BUG();
-}
-
-void machine_kexec(struct kimage *image)
-{
- BUG_ON(!image);
- unw_init_running(ia64_machine_kexec, image);
- for(;;);
-}
-
-void arch_crash_save_vmcoreinfo(void)
-{
-#if defined(CONFIG_SPARSEMEM)
- VMCOREINFO_SYMBOL(pgdat_list);
- VMCOREINFO_LENGTH(pgdat_list, MAX_NUMNODES);
-#endif
-#ifdef CONFIG_NUMA
- VMCOREINFO_SYMBOL(node_memblk);
- VMCOREINFO_LENGTH(node_memblk, NR_NODE_MEMBLKS);
- VMCOREINFO_STRUCT_SIZE(node_memblk_s);
- VMCOREINFO_OFFSET(node_memblk_s, start_paddr);
- VMCOREINFO_OFFSET(node_memblk_s, size);
-#endif
-#if CONFIG_PGTABLE_LEVELS == 3
- VMCOREINFO_CONFIG(PGTABLE_3);
-#elif CONFIG_PGTABLE_LEVELS == 4
- VMCOREINFO_CONFIG(PGTABLE_4);
-#endif
-}
-