/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2000 Silicon Graphics, Inc. * Copyright (C) 2005 Ralf Baechle <ralf@linux-mips.org> */ #ifndef __ASM_MACH_IP27_KERNEL_ENTRY_H #define __ASM_MACH_IP27_KERNEL_ENTRY_H #include <asm/sn/addrs.h> #include <asm/sn/sn0/hubni.h> #include <asm/sn/klkernvars.h> /* * Returns the local nasid into res. */ .macro GET_NASID_ASM res dli \res, LOCAL_HUB_ADDR(NI_STATUS_REV_ID) ld \res, (\res) and \res, NSRI_NODEID_MASK dsrl \res, NSRI_NODEID_SHFT .endm /* * Intentionally empty macro, used in head.S. Override in * arch/mips/mach-xxx/kernel-entry-init.h when necessary. */ .macro kernel_entry_setup GET_NASID_ASM t1 move t2, t1 # text and data are here MAPPED_KERNEL_SETUP_TLB .endm /* * Do SMP slave processor setup necessary before we can savely execute C code. */ .macro smp_slave_setup GET_NASID_ASM t1 dli t0, KLDIR_OFFSET + (KLI_KERN_VARS * KLDIR_ENT_SIZE) + \ KLDIR_OFF_POINTER + CAC_BASE dsll t1, NASID_SHFT or t0, t0, t1 ld t0, 0(t0) # t0 points to kern_vars struct lh t1, KV_RO_NASID_OFFSET(t0) lh t2, KV_RW_NASID_OFFSET(t0) MAPPED_KERNEL_SETUP_TLB /* * We might not get launched at the address the kernel is linked to, * so we jump there. */ PTR_LA t0, 0f jr t0 0: .endm #endif /* __ASM_MACH_IP27_KERNEL_ENTRY_H */