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powerpc: Use is_kdump_kernel() 

linux/crash_dump.h defines is_kdump_kernel() to be used by code that
needs to know if the previous kernel crashed instead of a (clean) boot
or reboot.

This updates the just added powerpc code to use it.  This is needed
for the next commit, which will remove __kdump_flag.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
hifive-unleashed-5.1
Milton Miller 2008-10-22 15:39:04 -05:00 committed by Paul Mackerras
parent 1767c8f392
commit 62a8bd6c92
4 changed files with 7 additions and 8 deletions
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2
arch/powerpc/include/asm/kdump.h
View File

@ -20,8 +20,6 @@
#ifndef __ASSEMBLY__
extern unsigned long __kdump_flag;
#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_RELOCATABLE)
extern void reserve_kdump_trampoline(void);
extern void setup_kdump_trampoline(void);

3
arch/powerpc/kernel/iommu.c
View File

@ -32,6 +32,7 @@
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include <linux/iommu-helper.h>
#include <linux/crash_dump.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/iommu.h>
@ -460,7 +461,7 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
static void iommu_table_clear(struct iommu_table *tbl)
{
if (!__kdump_flag) {
if (!is_kdump_kernel()) {
/* Clear the table in case firmware left allocations in it */
ppc_md.tce_free(tbl, tbl->it_offset, tbl->it_size);
return;

6
arch/powerpc/platforms/cell/ras.c
View File

@ -13,15 +13,15 @@
#include <linux/kernel.h>
#include <linux/smp.h>
#include <linux/reboot.h>
#include <linux/kexec.h>
#include <linux/crash_dump.h>
#include <asm/reg.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/kexec.h>
#include <asm/machdep.h>
#include <asm/rtas.h>
#include <asm/cell-regs.h>
#include <asm/kdump.h>
#include "ras.h"
@ -112,7 +112,7 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order)
int ret = -ENOMEM;
unsigned long addr;
if (__kdump_flag)
if (is_kdump_kernel())
rtas_call(ptcal_stop_tok, 1, 1, NULL, nid);
area = kmalloc(sizeof(*area), GFP_KERNEL);

4
arch/powerpc/platforms/pseries/iommu.c
View File

@ -32,6 +32,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/crash_dump.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/rtas.h>
@ -44,7 +45,6 @@
#include <asm/tce.h>
#include <asm/ppc-pci.h>
#include <asm/udbg.h>
#include <asm/kdump.h>
#include "plpar_wrappers.h"
@ -292,7 +292,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
tbl->it_base = (unsigned long)__va(*basep);
if (!__kdump_flag)
if (!is_kdump_kernel())
memset((void *)tbl->it_base, 0, *sizep);
tbl->it_busno = phb->bus->number;