[POWERPC] Make crash.c work on 32-bit and 64-bit
To compile kexec on 32-bit we need a few more bits and pieces. Rather
than add empty definitions, we can make crash.c work on 32-bit, with
only a couple of kludges.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 814f242..956c2e5 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -67,9 +67,9 @@
pci_direct_iommu.o iomap.o
pci32-$(CONFIG_PPC32) := pci_32.o
obj-$(CONFIG_PCI) += $(pci64-y) $(pci32-y)
-kexec-$(CONFIG_PPC64) := machine_kexec_64.o crash.o
+kexec-$(CONFIG_PPC64) := machine_kexec_64.o
kexec-$(CONFIG_PPC32) := machine_kexec_32.o
-obj-$(CONFIG_KEXEC) += machine_kexec.o $(kexec-y)
+obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o $(kexec-y)
ifeq ($(CONFIG_PPC_ISERIES),y)
$(obj)/head_64.o: $(obj)/lparmap.s
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 358cecd..f04c18e 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -44,6 +44,7 @@
/* This keeps a track of which one is crashing cpu. */
int crashing_cpu = -1;
static cpumask_t cpus_in_crash = CPU_MASK_NONE;
+cpumask_t cpus_in_sr = CPU_MASK_NONE;
static u32 *append_elf_note(u32 *buf, char *name, unsigned type, void *data,
size_t data_len)
@@ -139,7 +140,13 @@
if (ppc_md.kexec_cpu_down)
ppc_md.kexec_cpu_down(1, 1);
+
+#ifdef CONFIG_PPC64
kexec_smp_wait();
+#else
+ for (;;); /* FIXME */
+#endif
+
/* NOTREACHED */
}
@@ -255,7 +262,11 @@
*
* do this if kexec in setup.c ?
*/
+#ifdef CONFIG_PPC64
smp_release_cpus();
+#else
+ /* FIXME */
+#endif
}
void crash_kexec_secondary(struct pt_regs *regs)
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index b6db19d..be58985 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -10,7 +10,6 @@
*/
-#include <linux/cpumask.h>
#include <linux/kexec.h>
#include <linux/smp.h>
#include <linux/thread_info.h>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 5147175..125761a 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -55,9 +55,6 @@
#ifdef CONFIG_PPC64 /* XXX */
#define _IO_BASE pci_io_base
-#ifdef CONFIG_KEXEC
-cpumask_t cpus_in_sr = CPU_MASK_NONE;
-#endif
#endif
#ifdef CONFIG_DEBUGGER
diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h
index 8f7fd5c..11cbdf8 100644
--- a/include/asm-powerpc/kexec.h
+++ b/include/asm-powerpc/kexec.h
@@ -32,6 +32,7 @@
#endif
#ifndef __ASSEMBLY__
+#include <linux/cpumask.h>
#ifdef CONFIG_KEXEC
@@ -109,7 +110,6 @@
#define MAX_NOTE_BYTES 1024
-#ifdef __powerpc64__
extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
master to copy new code to 0 */
extern int crashing_cpu;
@@ -119,7 +119,6 @@
{
return cpu_isset(cpu,cpus_in_sr);
}
-#endif /* __powerpc64 __ */
struct kimage;
struct pt_regs;