diff options
| -rw-r--r-- | arch/mips/kernel/head.S | 43 | ||||
| -rw-r--r-- | include/asm-mips/mach-generic/kernel-entry-init.h | 25 | ||||
| -rw-r--r-- | include/asm-mips/mach-ip27/kernel-entry-init.h | 52 |
3 files changed, 83 insertions, 37 deletions
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index d7d7de7cdb40..d2de5d025dbf 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -22,11 +22,8 @@ #include <asm/page.h> #include <asm/mipsregs.h> #include <asm/stackframe.h> -#ifdef CONFIG_SGI_IP27 -#include <asm/sn/addrs.h> -#include <asm/sn/sn0/hubni.h> -#include <asm/sn/klkernvars.h> -#endif + +#include <kernel-entry-init.h> .macro ARC64_TWIDDLE_PC #if defined(CONFIG_ARC64) || defined(CONFIG_MAPPED_KERNEL) @@ -38,18 +35,6 @@ #endif .endm -#ifdef CONFIG_SGI_IP27 - /* - * outputs the local nasid into res. IP27 stuff. - */ - .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 -#endif /* CONFIG_SGI_IP27 */ - /* * inputs are the text nasid in t1, data nasid in t2. */ @@ -142,13 +127,10 @@ EXPORT(_stext) __INIT NESTED(kernel_entry, 16, sp) # kernel entry point - setup_c0_status_pri -#ifdef CONFIG_SGI_IP27 - GET_NASID_ASM t1 - move t2, t1 # text and data are here - MAPPED_KERNEL_SETUP_TLB -#endif /* IP27 */ + kernel_entry_setup # cpu specific setup + + setup_c0_status_pri ARC64_TWIDDLE_PC @@ -185,20 +167,7 @@ NESTED(kernel_entry, 16, sp) # kernel entry point */ NESTED(smp_bootstrap, 16, sp) setup_c0_status_sec - -#ifdef CONFIG_SGI_IP27 - 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 - ARC64_TWIDDLE_PC -#endif /* CONFIG_SGI_IP27 */ - + smp_slave_setup j start_secondary END(smp_bootstrap) #endif /* CONFIG_SMP */ diff --git a/include/asm-mips/mach-generic/kernel-entry-init.h b/include/asm-mips/mach-generic/kernel-entry-init.h new file mode 100644 index 000000000000..7e66505fa574 --- /dev/null +++ b/include/asm-mips/mach-generic/kernel-entry-init.h @@ -0,0 +1,25 @@ +/* + * 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) 2005 Embedded Alley Solutions, Inc + * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) + */ +#ifndef __ASM_MACH_GENERIC_KERNEL_ENTRY_H +#define __ASM_MACH_GENERIC_KERNEL_ENTRY_H + +/* Intentionally empty macro, used in head.S. Override in + * arch/mips/mach-xxx/kernel-entry-init.h when necessary. + */ +.macro kernel_entry_setup +.endm + +/* + * Do SMP slave processor setup necessary before we can savely execute C code. + */ + .macro smp_slave_setup + .endm + + +#endif /* __ASM_MACH_GENERIC_KERNEL_ENTRY_H */ diff --git a/include/asm-mips/mach-ip27/kernel-entry-init.h b/include/asm-mips/mach-ip27/kernel-entry-init.h new file mode 100644 index 000000000000..c1a10314b317 --- /dev/null +++ b/include/asm-mips/mach-ip27/kernel-entry-init.h @@ -0,0 +1,52 @@ +/* + * 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 + ARC64_TWIDDLE_PC + .endm + +#endif /* __ASM_MACH_IP27_KERNEL_ENTRY_H */ |