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5eeb1f34d4
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>
74 lines
1.4 KiB
Bash
Executable File
74 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Testcase: Simulate missed breadcrumb interrupts
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#
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SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
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. $SOURCE_DIR/drm_lib.sh
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oldpath=`pwd`
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cd $i915_dfs_path
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function blt_wait {
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(cd $oldpath; $SOURCE_DIR/gem_exec_blt 16384) > /dev/null
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(cd $oldpath; $SOURCE_DIR/gem_exec_blt 65536) > /dev/null
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(cd $oldpath; $SOURCE_DIR/gem_exec_blt 262144) > /dev/null
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}
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function check_for_missed_irq {
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if test `cat i915_ring_missed_irq` = 0x00000000; then
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echo "missed interrupts undetected"
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exit 1
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fi
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}
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function check_for_hang {
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if cat i915_error_state | grep -v "no error state collected" > /dev/null ; then
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echo "gpu hang reported"
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exit 2
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fi
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}
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if [ ! -f i915_ring_missed_irq ] ; then
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echo "kernel doesn't support interrupt masking"
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exit 77
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fi
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# clear error state first
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echo > i915_error_state
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check_for_hang
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echo 0xf > i915_ring_test_irq
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echo "Interrupts masked"
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if test `cat i915_ring_test_irq` != 0x0000000f; then
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echo "Failed to set interrupt mask"
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exit 3
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fi
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blt_wait
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check_for_missed_irq
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check_for_hang
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blt_wait
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check_for_hang
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echo 0 > i915_ring_test_irq
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echo "Interrupts unmasked"
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if test `cat i915_ring_test_irq` != 0x00000000; then
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echo "Failed to clear interrupt mask"
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exit 3
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fi
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blt_wait
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check_for_hang
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echo 0 > i915_ring_missed_irq
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echo "Cleared missed interrupts"
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if test `cat i915_ring_missed_irq` != 0x00000000; then
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echo "Failed to clear missed interrupts"
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exit 3
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fi
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exit 0
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