[PATCH i-g-t 4/9] intel-gpu-overlay: Fix interrupts PMU readout

Tvrtko Ursulin
2017-10-10T09:30:18Z

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
overlay/gem-interrupts.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/overlay/gem-interrupts.c b/overlay/gem-interrupts.c
index a84aef0398a7..3eda24f4d7eb 100644
--- a/overlay/gem-interrupts.c
+++ b/overlay/gem-interrupts.c
@@ -136,8 +136,12 @@ int gem_interrupts_update(struct gem_interrupts *irqs)
else
val = ret;
} else {
- if (read(irqs->fd, &val, sizeof(val)) < 0)
+ uint64_t data[2];
+
+ if (read(irqs->fd, &data, sizeof(data)) < 0)
return irqs->error = errno;
+
+ val = data[0];
}

update = irqs->last_count == 0;
--
2.9.5