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authorClark Williams <williams@redhat.com>2012-04-15 23:24:46 -0500
committerClark Williams <williams@redhat.com>2012-04-15 23:24:46 -0500
commit8e9c931b8e4150f3c5aaab7e4639cd507c30477c (patch)
tree4c77bef833db938a950c60095f628acc1ebff50a /arch/powerpc
parent3524a83e5459ae4ba42f9bf098bb736b99b88695 (diff)
parente816b57a337ea3b755de72bec38c10c864f23015 (diff)
Merge commit 'v3.4-rc3' into rt-3.4-rc3-rt4v3.4-rc3-rt4
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/irq.h2
-rw-r--r--arch/powerpc/kernel/entry_32.S39
-rw-r--r--arch/powerpc/kernel/irq.c6
-rw-r--r--arch/powerpc/kernel/process.c4
-rw-r--r--arch/powerpc/platforms/cell/axon_msi.c2
-rw-r--r--arch/powerpc/platforms/cell/beat_interrupt.c2
-rw-r--r--arch/powerpc/platforms/powermac/smp.c2
-rw-r--r--arch/powerpc/platforms/ps3/interrupt.c3
8 files changed, 27 insertions, 33 deletions
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index cf417e510736..e648af92ced1 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -33,8 +33,6 @@ extern atomic_t ppc_n_lost_interrupts;
/* Same thing, used by the generic IRQ code */
#define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS
-struct irq_data;
-extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
extern irq_hw_number_t virq_to_hw(unsigned int virq);
/**
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 3e57a00b8cba..ba3aeb4bc06a 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -206,40 +206,43 @@ reenable_mmu: /* re-enable mmu so we can */
andi. r10,r10,MSR_EE /* Did EE change? */
beq 1f
- /* Save handler and return address into the 2 unused words
- * of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything
- * else can be recovered from the pt_regs except r3 which for
- * normal interrupts has been set to pt_regs and for syscalls
- * is an argument, so we temporarily use ORIG_GPR3 to save it
- */
- stw r9,8(r1)
- stw r11,12(r1)
- stw r3,ORIG_GPR3(r1)
/*
* The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1.
* If from user mode there is only one stack frame on the stack, and
* accessing CALLER_ADDR1 will cause oops. So we need create a dummy
* stack frame to make trace_hardirqs_off happy.
+ *
+ * This is handy because we also need to save a bunch of GPRs,
+ * r3 can be different from GPR3(r1) at this point, r9 and r11
+ * contains the old MSR and handler address respectively,
+ * r4 & r5 can contain page fault arguments that need to be passed
+ * along as well. r12, CCR, CTR, XER etc... are left clobbered as
+ * they aren't useful past this point (aren't syscall arguments),
+ * the rest is restored from the exception frame.
*/
+ stwu r1,-32(r1)
+ stw r9,8(r1)
+ stw r11,12(r1)
+ stw r3,16(r1)
+ stw r4,20(r1)
+ stw r5,24(r1)
andi. r12,r12,MSR_PR
- beq 11f
- stwu r1,-16(r1)
+ b 11f
bl trace_hardirqs_off
- addi r1,r1,16
b 12f
-
11:
bl trace_hardirqs_off
12:
+ lwz r5,24(r1)
+ lwz r4,20(r1)
+ lwz r3,16(r1)
+ lwz r11,12(r1)
+ lwz r9,8(r1)
+ addi r1,r1,32
lwz r0,GPR0(r1)
- lwz r3,ORIG_GPR3(r1)
- lwz r4,GPR4(r1)
- lwz r5,GPR5(r1)
lwz r6,GPR6(r1)
lwz r7,GPR7(r1)
lwz r8,GPR8(r1)
- lwz r9,8(r1)
- lwz r11,12(r1)
1: mtctr r11
mtlr r9
bctr /* jump to handler */
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index a4970d155695..89fddc1402a7 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -562,12 +562,6 @@ void do_softirq(void)
}
#endif
-irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
-{
- return d->hwirq;
-}
-EXPORT_SYMBOL_GPL(irqd_to_hwirq);
-
irq_hw_number_t virq_to_hw(unsigned int virq)
{
struct irq_data *irq_data = irq_get_irq_data(virq);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index f88698c0f332..4937c9690090 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1235,7 +1235,7 @@ void __ppc64_runlatch_on(void)
ctrl |= CTRL_RUNLATCH;
mtspr(SPRN_CTRLT, ctrl);
- ti->local_flags |= TLF_RUNLATCH;
+ ti->local_flags |= _TLF_RUNLATCH;
}
/* Called with hard IRQs off */
@@ -1244,7 +1244,7 @@ void __ppc64_runlatch_off(void)
struct thread_info *ti = current_thread_info();
unsigned long ctrl;
- ti->local_flags &= ~TLF_RUNLATCH;
+ ti->local_flags &= ~_TLF_RUNLATCH;
ctrl = mfspr(SPRN_CTRLF);
ctrl &= ~CTRL_RUNLATCH;
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index db360fc4cf0e..d09f3e8e6867 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -392,7 +392,7 @@ static int axon_msi_probe(struct platform_device *device)
}
memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
- msic->irq_domain = irq_domain_add_nomap(dn, &msic_host_ops, msic);
+ msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic);
if (!msic->irq_domain) {
printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
dn->full_name);
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index e5c3a2c6090d..f9a48af335cb 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -239,7 +239,7 @@ void __init beatic_init_IRQ(void)
ppc_md.get_irq = beatic_get_irq;
/* Allocate an irq host */
- beatic_host = irq_domain_add_nomap(NULL, &beatic_pic_host_ops, NULL);
+ beatic_host = irq_domain_add_nomap(NULL, 0, &beatic_pic_host_ops, NULL);
BUG_ON(beatic_host == NULL);
irq_set_default_host(beatic_host);
}
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index a81e5a88fbdf..b4ddaa3fbb29 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -192,7 +192,7 @@ static int psurge_secondary_ipi_init(void)
{
int rc = -ENOMEM;
- psurge_host = irq_domain_add_nomap(NULL, &psurge_host_ops, NULL);
+ psurge_host = irq_domain_add_nomap(NULL, 0, &psurge_host_ops, NULL);
if (psurge_host)
psurge_secondary_virq = irq_create_direct_mapping(psurge_host);
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 2a4ff86cc21f..5f3b23220b8e 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -753,9 +753,8 @@ void __init ps3_init_IRQ(void)
unsigned cpu;
struct irq_domain *host;
- host = irq_domain_add_nomap(NULL, &ps3_host_ops, NULL);
+ host = irq_domain_add_nomap(NULL, PS3_PLUG_MAX + 1, &ps3_host_ops, NULL);
irq_set_default_host(host);
- irq_set_virq_count(PS3_PLUG_MAX + 1);
for_each_possible_cpu(cpu) {
struct ps3_private *pd = &per_cpu(ps3_private, cpu);