diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2005-09-28 13:28:01 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2005-09-28 13:28:01 +1000 |
| commit | c111d0bda8437d146ccf5101970801fe4ff23ed8 (patch) | |
| tree | 3d4a3f0a5b11e2cddfa1f35560a720fe043440ec /arch/powerpc/platforms/iseries/misc.S | |
| parent | 7b875f4dc345dc5f6a2c3bd0e1f90bfee46b2258 (diff) | |
powerpc: move more iSeries code
Move the iSeries specific parts of misc.S and ppc_ksyms.c
into powerpc/platforms/iseries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'arch/powerpc/platforms/iseries/misc.S')
| -rw-r--r-- | arch/powerpc/platforms/iseries/misc.S | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/iseries/misc.S b/arch/powerpc/platforms/iseries/misc.S new file mode 100644 index 00000000000..09f14522e17 --- /dev/null +++ b/arch/powerpc/platforms/iseries/misc.S @@ -0,0 +1,55 @@ +/* + * This file contains miscellaneous low-level functions. + * Copyright (C) 1995-2005 IBM Corp + * + * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras. + * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com) + * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <asm/processor.h> +#include <asm/asm-offsets.h> + + .text + +/* unsigned long local_save_flags(void) */ +_GLOBAL(local_get_flags) + lbz r3,PACAPROCENABLED(r13) + blr + +/* unsigned long local_irq_disable(void) */ +_GLOBAL(local_irq_disable) + lbz r3,PACAPROCENABLED(r13) + li r4,0 + stb r4,PACAPROCENABLED(r13) + blr /* Done */ + +/* void local_irq_restore(unsigned long flags) */ +_GLOBAL(local_irq_restore) + lbz r5,PACAPROCENABLED(r13) + /* Check if things are setup the way we want _already_. */ + cmpw 0,r3,r5 + beqlr + /* are we enabling interrupts? */ + cmpdi 0,r3,0 + stb r3,PACAPROCENABLED(r13) + beqlr + /* Check pending interrupts */ + /* A decrementer, IPI or PMC interrupt may have occurred + * while we were in the hypervisor (which enables) */ + ld r4,PACALPPACA+LPPACAANYINT(r13) + cmpdi r4,0 + beqlr + + /* + * Handle pending interrupts in interrupt context + */ + li r0,0x5555 + sc + blr |