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9a4dc80399
Inside the live_hangcheck (reset) selftests, we occasionally see failures like <7>[ 239.094840] i915_gem_set_wedged rcs0 <7>[ 239.094843] i915_gem_set_wedged current seqno 19a98, last 19a9a, hangcheck 0 [5158 ms] <7>[ 239.094846] i915_gem_set_wedged Reset count: 6239 (global 1) <7>[ 239.094848] i915_gem_set_wedged Requests: <7>[ 239.095052] i915_gem_set_wedged first 19a99 [e8c:5f] prio=1024 @ 5159ms: (null) <7>[ 239.095056] i915_gem_set_wedged last 19a9a [e81:1a] prio=139 @ 5159ms: igt/rcs0[5977]/1 <7>[ 239.095059] i915_gem_set_wedged active 19a99 [e8c:5f] prio=1024 @ 5159ms: (null) <7>[ 239.095062] i915_gem_set_wedged [head 0220, postfix 0280, tail 02a8, batch 0xffffffff_ffffffff] <7>[ 239.100050] i915_gem_set_wedged ring->start: 0x00283000 <7>[ 239.100053] i915_gem_set_wedged ring->head: 0x000001f8 <7>[ 239.100055] i915_gem_set_wedged ring->tail: 0x000002a8 <7>[ 239.100057] i915_gem_set_wedged ring->emit: 0x000002a8 <7>[ 239.100059] i915_gem_set_wedged ring->space: 0x00000f10 <7>[ 239.100085] i915_gem_set_wedged RING_START: 0x00283000 <7>[ 239.100088] i915_gem_set_wedged RING_HEAD: 0x00000260 <7>[ 239.100091] i915_gem_set_wedged RING_TAIL: 0x000002a8 <7>[ 239.100094] i915_gem_set_wedged RING_CTL: 0x00000001 <7>[ 239.100097] i915_gem_set_wedged RING_MODE: 0x00000300 [idle] <7>[ 239.100100] i915_gem_set_wedged RING_IMR: fffffefe <7>[ 239.100104] i915_gem_set_wedged ACTHD: 0x00000000_0000609c <7>[ 239.100108] i915_gem_set_wedged BBADDR: 0x00000000_0000609d <7>[ 239.100111] i915_gem_set_wedged DMA_FADDR: 0x00000000_00283260 <7>[ 239.100114] i915_gem_set_wedged IPEIR: 0x00000000 <7>[ 239.100117] i915_gem_set_wedged IPEHR: 0x02800000 <7>[ 239.100120] i915_gem_set_wedged Execlist status: 0x00044052 00000002 <7>[ 239.100124] i915_gem_set_wedged Execlist CSB read 5 [5 cached], write 5 [5 from hws], interrupt posted? no, tasklet queued? no (enabled) <7>[ 239.100128] i915_gem_set_wedged ELSP[0] count=1, ring->start=00283000, rq: 19a99 [e8c:5f] prio=1024 @ 5164ms: (null) <7>[ 239.100132] i915_gem_set_wedged ELSP[1] count=1, ring->start=00257000, rq: 19a9a [e81:1a] prio=139 @ 5164ms: igt/rcs0[5977]/1 <7>[ 239.100135] i915_gem_set_wedged HW active? 0x5 <7>[ 239.100250] i915_gem_set_wedged E 19a99 [e8c:5f] prio=1024 @ 5164ms: (null) <7>[ 239.100338] i915_gem_set_wedged E 19a9a [e81:1a] prio=139 @ 5164ms: igt/rcs0[5977]/1 <7>[ 239.100340] i915_gem_set_wedged Queue priority: 139 <7>[ 239.100343] i915_gem_set_wedged Q 0 [e98:19] prio=132 @ 5164ms: igt/rcs0[5977]/8 <7>[ 239.100346] i915_gem_set_wedged Q 0 [e84:19] prio=121 @ 5165ms: igt/rcs0[5977]/2 <7>[ 239.100349] i915_gem_set_wedged Q 0 [e87:19] prio=82 @ 5165ms: igt/rcs0[5977]/3 <7>[ 239.100352] i915_gem_set_wedged Q 0 [e84:1a] prio=44 @ 5164ms: igt/rcs0[5977]/2 <7>[ 239.100356] i915_gem_set_wedged Q 0 [e8b:19] prio=20 @ 5165ms: igt/rcs0[5977]/4 <7>[ 239.100362] i915_gem_set_wedged drv_selftest [5894] waiting for 19a99 where the GPU saw an arbitration point and idles; AND HAS NOT BEEN RESET! The RING_MODE indicates that is idle and has the STOP_RING bit set, so try clearing it. v2: Only clear the bit on restarting the ring, as we want to be sure the STOP_RING bit is kept if reset fails on wedging. v3: Spot when the ring state doesn't make sense when re-initialising the engine and dump it to the logs so that we don't have to wait for an error later and try to guess what happened earlier. v4: Prepare to print all the unexpected state, not just the first. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180518100933.2239-1-chris@chris-wilson.co.uk |
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accessibility | ||
acpi | ||
amba | ||
android | ||
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atm | ||
auxdisplay | ||
base | ||
bcma | ||
block | ||
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cdrom | ||
char | ||
clk | ||
clocksource | ||
connector | ||
cpufreq | ||
cpuidle | ||
crypto | ||
dax | ||
dca | ||
devfreq | ||
dio | ||
dma | ||
dma-buf | ||
edac | ||
eisa | ||
extcon | ||
firewire | ||
firmware | ||
fmc | ||
fpga | ||
fsi | ||
gpio | ||
gpu | ||
hid | ||
hsi | ||
hv | ||
hwmon | ||
hwspinlock | ||
hwtracing | ||
i2c | ||
ide | ||
idle | ||
iio | ||
infiniband | ||
input | ||
iommu | ||
ipack | ||
irqchip | ||
isdn | ||
leds | ||
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macintosh | ||
mailbox | ||
mcb | ||
md | ||
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of | ||
opp | ||
oprofile | ||
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pci | ||
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perf | ||
phy | ||
pinctrl | ||
platform | ||
pnp | ||
power | ||
powercap | ||
pps | ||
ps3 | ||
ptp | ||
pwm | ||
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ras | ||
regulator | ||
remoteproc | ||
reset | ||
rpmsg | ||
rtc | ||
s390 | ||
sbus | ||
scsi | ||
sfi | ||
sh | ||
siox | ||
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sn | ||
soc | ||
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spi | ||
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ssb | ||
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target | ||
tc | ||
tee | ||
thermal | ||
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tty | ||
uio | ||
usb | ||
uwb | ||
vfio | ||
vhost | ||
video | ||
virt | ||
virtio | ||
visorbus | ||
vlynq | ||
vme | ||
w1 | ||
watchdog | ||
xen | ||
zorro | ||
Kconfig | ||
Makefile |