1 files changed, 108 insertions, 43 deletions

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 4a585cba1787..bd4a6c42a5f3 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -3,7 +3,7 @@
 #define _ASM_POWERPC_KEXEC_H
 #ifdef __KERNEL__
 
-#if defined(CONFIG_FSL_BOOKE) || defined(CONFIG_44x)
+#if defined(CONFIG_PPC_85xx) || defined(CONFIG_44x)
 
 /*
  * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
@@ -49,13 +49,80 @@
 #define KEXEC_STATE_IRQS_OFF 1
 #define KEXEC_STATE_REAL_MODE 2
 
-#ifndef __ASSEMBLY__
+#ifndef __ASSEMBLER__
 #include <asm/reg.h>
 
 typedef void (*crash_shutdown_t)(void);
 
 #ifdef CONFIG_KEXEC_CORE
+struct kimage;
+struct pt_regs;
+
+extern void kexec_smp_wait(void);	/* get and clear naca physid, wait for
+					  master to copy new code to 0 */
+extern void default_machine_kexec(struct kimage *image);
+
+void relocate_new_kernel(unsigned long indirection_page, unsigned long reboot_code_buffer,
+			 unsigned long start_address) __noreturn;
+void kexec_copy_flush(struct kimage *image);
+
+#ifdef CONFIG_KEXEC_FILE
+extern const struct kexec_file_ops kexec_elf64_ops;
+
+#define ARCH_HAS_KIMAGE_ARCH
+
+struct kimage_arch {
+	struct crash_mem *exclude_ranges;
+
+	unsigned long backup_start;
+	void *backup_buf;
+	void *fdt;
+};
+
+char *setup_kdump_cmdline(struct kimage *image, char *cmdline,
+			  unsigned long cmdline_len);
+int setup_purgatory(struct kimage *image, const void *slave_code,
+		    const void *fdt, unsigned long kernel_load_addr,
+		    unsigned long fdt_load_addr);
+
+#ifdef CONFIG_PPC64
+struct kexec_buf;
+
+int arch_kexec_kernel_image_probe(struct kimage *image, void *buf, unsigned long buf_len);
+#define arch_kexec_kernel_image_probe arch_kexec_kernel_image_probe
+
+int arch_kimage_file_post_load_cleanup(struct kimage *image);
+#define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup
+
+int arch_check_excluded_range(struct kimage *image, unsigned long start,
+			      unsigned long end);
+#define arch_check_excluded_range  arch_check_excluded_range
+
+
+int load_crashdump_segments_ppc64(struct kimage *image,
+				  struct kexec_buf *kbuf);
+int setup_purgatory_ppc64(struct kimage *image, const void *slave_code,
+			  const void *fdt, unsigned long kernel_load_addr,
+			  unsigned long fdt_load_addr);
+unsigned int kexec_extra_fdt_size_ppc64(struct kimage *image, struct crash_mem *rmem);
+int setup_new_fdt_ppc64(const struct kimage *image, void *fdt, struct crash_mem *rmem);
+#endif /* CONFIG_PPC64 */
+
+#endif /* CONFIG_KEXEC_FILE */
+
+#endif /* CONFIG_KEXEC_CORE */
 
+#ifdef CONFIG_CRASH_RESERVE
+int __init overlaps_crashkernel(unsigned long start, unsigned long size);
+extern void arch_reserve_crashkernel(void);
+extern void kdump_cma_reserve(void);
+#else
+static inline void arch_reserve_crashkernel(void) {}
+static inline int overlaps_crashkernel(unsigned long start, unsigned long size) { return 0; }
+static inline void kdump_cma_reserve(void) { }
+#endif
+
+#if defined(CONFIG_CRASH_DUMP)
 /*
  * This function is responsible for capturing register states if coming
  * via panic or invoking dump using sysrq-trigger.
@@ -69,62 +136,44 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
 		ppc_save_regs(newregs);
 }
 
-extern void kexec_smp_wait(void);	/* get and clear naca physid, wait for
-					  master to copy new code to 0 */
+#ifdef CONFIG_CRASH_HOTPLUG
+void arch_crash_handle_hotplug_event(struct kimage *image, void *arg);
+#define arch_crash_handle_hotplug_event arch_crash_handle_hotplug_event
+
+int arch_crash_hotplug_support(struct kimage *image, unsigned long kexec_flags);
+#define arch_crash_hotplug_support arch_crash_hotplug_support
+
+unsigned int arch_crash_get_elfcorehdr_size(void);
+#define crash_get_elfcorehdr_size arch_crash_get_elfcorehdr_size
+#endif /* CONFIG_CRASH_HOTPLUG */
+
 extern int crashing_cpu;
 extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *));
-extern void crash_ipi_callback(struct pt_regs *);
+extern void crash_ipi_callback(struct pt_regs *regs);
 extern int crash_wake_offline;
 
-struct kimage;
-struct pt_regs;
-extern void default_machine_kexec(struct kimage *image);
-extern int default_machine_kexec_prepare(struct kimage *image);
-extern void default_machine_crash_shutdown(struct pt_regs *regs);
 extern int crash_shutdown_register(crash_shutdown_t handler);
 extern int crash_shutdown_unregister(crash_shutdown_t handler);
+extern void default_machine_crash_shutdown(struct pt_regs *regs);
 
+extern void crash_kexec_prepare(void);
 extern void crash_kexec_secondary(struct pt_regs *regs);
-extern int overlaps_crashkernel(unsigned long start, unsigned long size);
-extern void reserve_crashkernel(void);
-extern void machine_kexec_mask_interrupts(void);
 
 static inline bool kdump_in_progress(void)
 {
 	return crashing_cpu >= 0;
 }
 
-#ifdef CONFIG_KEXEC_FILE
-extern const struct kexec_file_ops kexec_elf64_ops;
-
-#ifdef CONFIG_IMA_KEXEC
-#define ARCH_HAS_KIMAGE_ARCH
+bool is_kdump_kernel(void);
+#define is_kdump_kernel			is_kdump_kernel
+#if defined(CONFIG_PPC_RTAS)
+void crash_free_reserved_phys_range(unsigned long begin, unsigned long end);
+#define crash_free_reserved_phys_range crash_free_reserved_phys_range
+#endif /* CONFIG_PPC_RTAS */
 
-struct kimage_arch {
-	phys_addr_t ima_buffer_addr;
-	size_t ima_buffer_size;
-};
-#endif
-
-int setup_purgatory(struct kimage *image, const void *slave_code,
-		    const void *fdt, unsigned long kernel_load_addr,
-		    unsigned long fdt_load_addr);
-int setup_new_fdt(const struct kimage *image, void *fdt,
-		  unsigned long initrd_load_addr, unsigned long initrd_len,
-		  const char *cmdline);
-int delete_fdt_mem_rsv(void *fdt, unsigned long start, unsigned long size);
-#endif /* CONFIG_KEXEC_FILE */
-
-#else /* !CONFIG_KEXEC_CORE */
+#else /* !CONFIG_CRASH_DUMP */
 static inline void crash_kexec_secondary(struct pt_regs *regs) { }
 
-static inline int overlaps_crashkernel(unsigned long start, unsigned long size)
-{
-	return 0;
-}
-
-static inline void reserve_crashkernel(void) { ; }
-
 static inline int crash_shutdown_register(crash_shutdown_t handler)
 {
 	return 0;
@@ -146,7 +195,23 @@ static inline void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
 {
 }
 
-#endif /* CONFIG_KEXEC_CORE */
-#endif /* ! __ASSEMBLY__ */
+#endif /* CONFIG_CRASH_DUMP */
+
+#if defined(CONFIG_KEXEC_FILE) || defined(CONFIG_CRASH_DUMP)
+int update_cpus_node(void *fdt);
+#endif
+
+#ifdef CONFIG_PPC_BOOK3S_64
+#include <asm/book3s/64/kexec.h>
+#endif
+
+#ifndef reset_sprs
+#define reset_sprs reset_sprs
+static inline void reset_sprs(void)
+{
+}
+#endif
+
+#endif /* ! __ASSEMBLER__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_KEXEC_H */