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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-09-23 12:04:59 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-10-11 16:48:46 +1100
commitbf8e0f891a32ba24fa8811e496fabb449589d942 (patch)
tree2a42bfbffff6183addc41f0752fa253aa440b888 /arch/powerpc/sysdev/xics
parent46d319e5d8c8add09378a67e27237504d0132283 (diff)
downloadop-kernel-dev-bf8e0f891a32ba24fa8811e496fabb449589d942.zip
op-kernel-dev-bf8e0f891a32ba24fa8811e496fabb449589d942.tar.gz
powerpc/powernv: Fix endian issues in OPAL ICS backend
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev/xics')
-rw-r--r--arch/powerpc/sysdev/xics/ics-opal.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 39d7221..3c6ee1b 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -112,6 +112,7 @@ static int ics_opal_set_affinity(struct irq_data *d,
bool force)
{
unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d);
+ __be16 oserver;
int16_t server;
int8_t priority;
int64_t rc;
@@ -120,13 +121,13 @@ static int ics_opal_set_affinity(struct irq_data *d,
if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
return -1;
- rc = opal_get_xive(hw_irq, &server, &priority);
+ rc = opal_get_xive(hw_irq, &oserver, &priority);
if (rc != OPAL_SUCCESS) {
- pr_err("%s: opal_set_xive(irq=%d [hw 0x%x] server=%x)"
- " error %lld\n",
- __func__, d->irq, hw_irq, server, rc);
+ pr_err("%s: opal_get_xive(irq=%d [hw 0x%x]) error %lld\n",
+ __func__, d->irq, hw_irq, rc);
return -1;
}
+ server = be16_to_cpu(oserver);
wanted_server = xics_get_irq_server(d->irq, cpumask, 1);
if (wanted_server < 0) {
@@ -181,7 +182,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
{
unsigned int hw_irq = (unsigned int)virq_to_hw(virq);
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
if (WARN_ON(hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS))
@@ -201,7 +202,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
{
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
/* Check if HAL knows about this interrupt */
@@ -215,14 +216,14 @@ static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
static long ics_opal_get_server(struct ics *ics, unsigned long vec)
{
int64_t rc;
- int16_t server;
+ __be16 server;
int8_t priority;
/* Check if HAL knows about this interrupt */
rc = opal_get_xive(vec, &server, &priority);
if (rc != OPAL_SUCCESS)
return -1;
- return ics_opal_unmangle_server(server);
+ return ics_opal_unmangle_server(be16_to_cpu(server));
}
int __init ics_opal_init(void)
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