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- /*
- * 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 */
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