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igt/drv_missed_irq_hang: Increase busy load

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The test relies on having to wait upon the GPU at some point and so
simulating a missed interrupt. If there is insufficient load on the GPU,
we can complete the task before we even wait.

References: https://bugs.freedesktop.org/show_bug.cgi?id=71334
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-09-06 17:25:01 +01:00
parent d35cc3ea8c
commit 5eeb1f34d4
1 changed files with 9 additions and 6 deletions
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15
tests/drv_missed_irq_hang
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@ -10,6 +10,12 @@ oldpath=`pwd`
cd $i915_dfs_path
function blt_wait {
(cd $oldpath; $SOURCE_DIR/gem_exec_blt 16384) > /dev/null
(cd $oldpath; $SOURCE_DIR/gem_exec_blt 65536) > /dev/null
(cd $oldpath; $SOURCE_DIR/gem_exec_blt 262144) > /dev/null
}
function check_for_missed_irq {
if test `cat i915_ring_missed_irq` = 0x00000000; then
echo "missed interrupts undetected"
@ -40,13 +46,11 @@ if test `cat i915_ring_test_irq` != 0x0000000f; then
exit 3
fi
(cd $oldpath; $SOURCE_DIR/gem_exec_blt) > /dev/null
blt_wait
check_for_missed_irq
check_for_hang
(cd $oldpath; $SOURCE_DIR/gem_exec_blt) > /dev/null
blt_wait
check_for_hang
echo 0 > i915_ring_test_irq
@ -56,8 +60,7 @@ if test `cat i915_ring_test_irq` != 0x00000000; then
exit 3
fi
(cd $oldpath; $SOURCE_DIR/gem_exec_blt) > /dev/null
blt_wait
check_for_hang
echo 0 > i915_ring_missed_irq