2 * include/asm-s390/kexec.h
4 * (C) Copyright IBM Corp. 2005
6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
16 #include <asm/processor.h>
18 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
19 * I.e. Maximum page that is mapped directly into kernel memory,
20 * and kmap is not required.
23 /* Maximum physical address we can use pages from */
24 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
26 /* Maximum address we can reach in physical address mode */
27 #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
29 /* Maximum address we can use for the control pages */
30 /* Not more than 2GB */
31 #define KEXEC_CONTROL_MEMORY_LIMIT (1UL<<31)
33 /* Maximum address we can use for the crash control pages */
34 #define KEXEC_CRASH_CONTROL_MEMORY_LIMIT (-1UL)
36 /* Allocate one page for the pdp and the second for the code */
37 #define KEXEC_CONTROL_PAGE_SIZE 4096
39 /* The native architecture */
40 #define KEXEC_ARCH KEXEC_ARCH_S390
42 /* Provide a dummy definition to avoid build failures. */
43 static inline void crash_setup_regs(struct pt_regs *newregs,
44 struct pt_regs *oldregs) { }
46 #endif /*_S390_KEXEC_H */