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-rw-r--r--arch/arm26/mm/fault.c17
-rw-r--r--arch/cris/mm/fault.c6
-rw-r--r--arch/frv/mm/fault.c6
-rw-r--r--arch/m68k/mm/fault.c6
-rw-r--r--arch/parisc/mm/fault.c12
-rw-r--r--arch/ppc64/kernel/head.S2
-rw-r--r--arch/ppc64/kernel/machine_kexec.c12
-rw-r--r--arch/ppc64/kernel/mpic.c4
-rw-r--r--arch/ppc64/kernel/mpic.h2
-rw-r--r--arch/ppc64/kernel/xics.c31
-rw-r--r--arch/sh64/mm/fault.c6
-rw-r--r--arch/x86_64/mm/fault.c6
12 files changed, 56 insertions, 54 deletions
diff --git a/arch/arm26/mm/fault.c b/arch/arm26/mm/fault.c
index dacca8bb774..bd6f2db608b 100644
--- a/arch/arm26/mm/fault.c
+++ b/arch/arm26/mm/fault.c
@@ -176,12 +176,12 @@ survive:
* Handle the "normal" cases first - successful and sigbus
*/
switch (fault) {
- case 2:
+ case VM_FAULT_MAJOR:
tsk->maj_flt++;
return fault;
- case 1:
+ case VM_FAULT_MINOR:
tsk->min_flt++;
- case 0:
+ case VM_FAULT_SIGBUS:
return fault;
}
@@ -226,14 +226,11 @@ int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
/*
* Handle the "normal" case first
*/
- if (fault > 0)
+ switch (fault) {
+ case VM_FAULT_MINOR:
+ case VM_FAULT_MAJOR:
return 0;
-
- /*
- * We had some memory, but were unable to
- * successfully fix up this page fault.
- */
- if (fault == 0){
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
}
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index fe1cc36b5ac..934c51078cc 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -284,13 +284,13 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
*/
switch (handle_mm_fault(mm, vma, address, writeaccess & 1)) {
- case 1:
+ case VM_FAULT_MINOR:
tsk->min_flt++;
break;
- case 2:
+ case VM_FAULT_MAJOR:
tsk->maj_flt++;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
default:
goto out_of_memory;
diff --git a/arch/frv/mm/fault.c b/arch/frv/mm/fault.c
index 41d02ac4823..8b3eb50c510 100644
--- a/arch/frv/mm/fault.c
+++ b/arch/frv/mm/fault.c
@@ -163,13 +163,13 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear
* the fault.
*/
switch (handle_mm_fault(mm, vma, ear0, write)) {
- case 1:
+ case VM_FAULT_MINOR:
current->min_flt++;
break;
- case 2:
+ case VM_FAULT_MAJOR:
current->maj_flt++;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
default:
goto out_of_memory;
diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index ac48b6d2aff..aec15270d33 100644
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -160,13 +160,13 @@ good_area:
printk("handle_mm_fault returns %d\n",fault);
#endif
switch (fault) {
- case 1:
+ case VM_FAULT_MINOR:
current->min_flt++;
break;
- case 2:
+ case VM_FAULT_MAJOR:
current->maj_flt++;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
goto bus_err;
default:
goto out_of_memory;
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index eaa701479f5..0ad945d4c0a 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -178,17 +178,17 @@ good_area:
*/
switch (handle_mm_fault(mm, vma, address, (acc_type & VM_WRITE) != 0)) {
- case 1:
+ case VM_FAULT_MINOR:
++current->min_flt;
break;
- case 2:
+ case VM_FAULT_MAJOR:
++current->maj_flt;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
/*
- * We ran out of memory, or some other thing happened
- * to us that made us unable to handle the page fault
- * gracefully.
+ * We hit a hared mapping outside of the file, or some
+ * other thing happened to us that made us unable to
+ * handle the page fault gracefully.
*/
goto bad_area;
default:
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S
index 74fc3bc6860..784f56d4684 100644
--- a/arch/ppc64/kernel/head.S
+++ b/arch/ppc64/kernel/head.S
@@ -2071,7 +2071,7 @@ _GLOBAL(hmt_start_secondary)
blr
#endif
-#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES)
+#if defined(CONFIG_KEXEC) || (defined(CONFIG_SMP) && !defined(CONFIG_PPC_ISERIES))
_GLOBAL(smp_release_cpus)
/* All secondary cpus are spinning on a common
* spinloop, release them all now so they can start
diff --git a/arch/ppc64/kernel/machine_kexec.c b/arch/ppc64/kernel/machine_kexec.c
index fdb2fc649d7..4775f12a013 100644
--- a/arch/ppc64/kernel/machine_kexec.c
+++ b/arch/ppc64/kernel/machine_kexec.c
@@ -185,7 +185,7 @@ void kexec_copy_flush(struct kimage *image)
void kexec_smp_down(void *arg)
{
if (ppc_md.cpu_irq_down)
- ppc_md.cpu_irq_down();
+ ppc_md.cpu_irq_down(1);
local_irq_disable();
kexec_smp_wait();
@@ -232,7 +232,7 @@ static void kexec_prepare_cpus(void)
/* after we tell the others to go down */
if (ppc_md.cpu_irq_down)
- ppc_md.cpu_irq_down();
+ ppc_md.cpu_irq_down(0);
put_cpu();
@@ -243,15 +243,19 @@ static void kexec_prepare_cpus(void)
static void kexec_prepare_cpus(void)
{
+ extern void smp_release_cpus(void);
/*
* move the secondarys to us so that we can copy
* the new kernel 0-0x100 safely
*
* do this if kexec in setup.c ?
+ *
+ * We need to release the cpus if we are ever going from an
+ * UP to an SMP kernel.
*/
- smp_relase_cpus();
+ smp_release_cpus();
if (ppc_md.cpu_irq_down)
- ppc_md.cpu_irq_down();
+ ppc_md.cpu_irq_down(0);
local_irq_disable();
}
diff --git a/arch/ppc64/kernel/mpic.c b/arch/ppc64/kernel/mpic.c
index e8fbab1df37..cc262a05ddb 100644
--- a/arch/ppc64/kernel/mpic.c
+++ b/arch/ppc64/kernel/mpic.c
@@ -794,10 +794,10 @@ void mpic_setup_this_cpu(void)
/*
* XXX: someone who knows mpic should check this.
- * do we need to eoi the ipi here (see xics comments)?
+ * do we need to eoi the ipi including for kexec cpu here (see xics comments)?
* or can we reset the mpic in the new kernel?
*/
-void mpic_teardown_this_cpu(void)
+void mpic_teardown_this_cpu(int secondary)
{
struct mpic *mpic = mpic_primary;
unsigned long flags;
diff --git a/arch/ppc64/kernel/mpic.h b/arch/ppc64/kernel/mpic.h
index 99fbbc9a084..ca78a7f1052 100644
--- a/arch/ppc64/kernel/mpic.h
+++ b/arch/ppc64/kernel/mpic.h
@@ -256,7 +256,7 @@ extern unsigned int mpic_irq_get_priority(unsigned int irq);
extern void mpic_setup_this_cpu(void);
/* Clean up for kexec (or cpu offline or ...) */
-extern void mpic_teardown_this_cpu(void);
+extern void mpic_teardown_this_cpu(int secondary);
/* Request IPIs on primary mpic */
extern void mpic_request_ipis(void);
diff --git a/arch/ppc64/kernel/xics.c b/arch/ppc64/kernel/xics.c
index 677c4450984..d9dc6f28d05 100644
--- a/arch/ppc64/kernel/xics.c
+++ b/arch/ppc64/kernel/xics.c
@@ -647,29 +647,30 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask)
}
}
-void xics_teardown_cpu(void)
+void xics_teardown_cpu(int secondary)
{
int cpu = smp_processor_id();
- int status;
ops->cppr_info(cpu, 0x00);
iosync();
/*
- * we need to EOI the IPI if we got here from kexec down IPI
- *
- * xics doesn't care if we duplicate an EOI as long as we
- * don't EOI and raise priority.
- *
- * probably need to check all the other interrupts too
- * should we be flagging idle loop instead?
- * or creating some task to be scheduled?
+ * Some machines need to have at least one cpu in the GIQ,
+ * so leave the master cpu in the group.
*/
- ops->xirr_info_set(cpu, XICS_IPI);
-
- status = rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
- (1UL << interrupt_server_size) - 1 - default_distrib_server, 0);
- WARN_ON(status != 0);
+ if (secondary) {
+ /*
+ * we need to EOI the IPI if we got here from kexec down IPI
+ *
+ * probably need to check all the other interrupts too
+ * should we be flagging idle loop instead?
+ * or creating some task to be scheduled?
+ */
+ ops->xirr_info_set(cpu, XICS_IPI);
+ rtas_set_indicator(GLOBAL_INTERRUPT_QUEUE,
+ (1UL << interrupt_server_size) - 1 -
+ default_distrib_server, 0);
+ }
}
#ifdef CONFIG_HOTPLUG_CPU
diff --git a/arch/sh64/mm/fault.c b/arch/sh64/mm/fault.c
index a24932881db..f08d0eaf649 100644
--- a/arch/sh64/mm/fault.c
+++ b/arch/sh64/mm/fault.c
@@ -223,13 +223,13 @@ good_area:
*/
survive:
switch (handle_mm_fault(mm, vma, address, writeaccess)) {
- case 1:
+ case VM_FAULT_MINOR:
tsk->min_flt++;
break;
- case 2:
+ case VM_FAULT_MAJOR:
tsk->maj_flt++;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
default:
goto out_of_memory;
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 13792721037..493819e543a 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -439,13 +439,13 @@ good_area:
* the fault.
*/
switch (handle_mm_fault(mm, vma, address, write)) {
- case 1:
+ case VM_FAULT_MINOR:
tsk->min_flt++;
break;
- case 2:
+ case VM_FAULT_MAJOR:
tsk->maj_flt++;
break;
- case 0:
+ case VM_FAULT_SIGBUS:
goto do_sigbus;
default:
goto out_of_memory;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 09:49:26 +0000