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[SPARC64]: Set dummy bucket->{imap,iclr} unique on SUN4V. 

So that free_irq() disable's the IRQ correctly.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-02-16 14:37:05 -08:00
parent 94f8762db9
commit 22780e23c6
1 changed files with 10 additions and 5 deletions
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15
arch/sparc64/kernel/irq.c
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@ -143,7 +143,6 @@ void enable_irq(unsigned int irq)
{
struct ino_bucket *bucket = __bucket(irq);
unsigned long imap;
unsigned long tid;
imap = bucket->imap;
if (imap == 0UL)
@ -169,6 +168,8 @@ void enable_irq(unsigned int irq)
printk("sun4v_intr_setstate(%x): "
"err(%d)\n", ino, err);
} else {
unsigned long tid;
if (tlb_type == cheetah || tlb_type == cheetah_plus) {
unsigned long ver;
@ -342,9 +343,12 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsign
/* Catch accidental accesses to these things. IMAP/ICLR handling
* is done by hypervisor calls on sun4v platforms, not by direct
* register accesses.
*
* But we need to make them look unique for the disable_irq() logic
* in free_irq().
*/
bucket->imap = ~0UL;
bucket->iclr = ~0UL;
bucket->imap = ~0UL - sysino;
bucket->iclr = ~0UL - sysino;
bucket->pil = pil;
bucket->flags = flags;
@ -547,7 +551,6 @@ void free_irq(unsigned int irq, void *dev_id)
bucket = __bucket(irq);
if (bucket != &pil0_dummy_bucket) {
struct irq_desc *desc = bucket->irq_info;
unsigned long imap = bucket->imap;
int ent, i;
for (i = 0; i < MAX_IRQ_DESC_ACTION; i++) {
@ -560,6 +563,8 @@ void free_irq(unsigned int irq, void *dev_id)
}
if (!desc->action_active_mask) {
unsigned long imap = bucket->imap;
/* This unique interrupt source is now inactive. */
bucket->flags &= ~IBF_ACTIVE;
@ -803,7 +808,6 @@ EXPORT_SYMBOL(probe_irq_off);
static int retarget_one_irq(struct irqaction *p, int goal_cpu)
{
struct ino_bucket *bucket = get_ino_in_irqaction(p) + ivector_table;
unsigned long imap = bucket->imap;
while (!cpu_online(goal_cpu)) {
if (++goal_cpu >= NR_CPUS)
@ -816,6 +820,7 @@ static int retarget_one_irq(struct irqaction *p, int goal_cpu)
sun4v_intr_settarget(ino, goal_cpu);
sun4v_intr_setenabled(ino, HV_INTR_ENABLED);
} else {
unsigned long imap = bucket->imap;
unsigned int tid;
if (tlb_type == cheetah || tlb_type == cheetah_plus) {