[PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Chris Wilson]

If the HW is already wedged, attempting to submit a request will
generate an -EIO. If we tried this during suspend, we would abort
whereas all we want to do is to go sleep and throw away the corrupt
state.

Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 354b0546a191..e083f242b8dc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4774,17 +4774,19 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
 	 * state. Fortunately, the kernel_context is disposable and we do
 	 * not rely on its state.
 	 */
-	ret = i915_gem_switch_to_kernel_context(dev_priv);
-	if (ret)
-		goto err_unlock;
+	if (!i915_terminally_wedged(&dev_priv->gpu_error)) {
+		ret = i915_gem_switch_to_kernel_context(dev_priv);
+		if (ret)
+			goto err_unlock;
 
-	ret = i915_gem_wait_for_idle(dev_priv,
-				     I915_WAIT_INTERRUPTIBLE |
-				     I915_WAIT_LOCKED);
-	if (ret && ret != -EIO)
-		goto err_unlock;
+		ret = i915_gem_wait_for_idle(dev_priv,
+					     I915_WAIT_INTERRUPTIBLE |
+					     I915_WAIT_LOCKED);
+		if (ret && ret != -EIO)
+			goto err_unlock;
 
-	assert_kernel_context_is_current(dev_priv);
+		assert_kernel_context_is_current(dev_priv);
+	}
 	i915_gem_contexts_lost(dev_priv);
 	mutex_unlock(&dev->struct_mutex);
 
-- 
2.15.0

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Re: [PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Chris Wilson]

Quoting Chris Wilson (2017-11-29 19:53:54)
> If the HW is already wedged, attempting to submit a request will
> generate an -EIO. If we tried this during suspend, we would abort
> whereas all we want to do is to go sleep and throw away the corrupt
> state.
> 
> Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
Testcase: igt/gem_eio/suspend
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
-Chris
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✗ Fi.CI.BAT: failure for drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Patchwork]

== Series Details ==

Series: drm/i915: Skip switch-to-kernel-context on suspend when wedged
URL   : https://patchwork.freedesktop.org/series/34658/
State : failure

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✓ Fi.CI.BAT: success for drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Patchwork]

== Series Details ==

Series: drm/i915: Skip switch-to-kernel-context on suspend when wedged
URL   : https://patchwork.freedesktop.org/series/34658/
State : success

== Summary ==

Series 34658v1 drm/i915: Skip switch-to-kernel-context on suspend when wedged
https://patchwork.freedesktop.org/api/1.0/series/34658/revisions/1/mbox/

Test debugfs_test:
        Subgroup read_all_entries:
                dmesg-warn -> PASS       (fi-bdw-gvtdvm) fdo#103938 +1
Test gem_exec_reloc:
        Subgroup basic-cpu-active:
                pass       -> FAIL       (fi-gdg-551) fdo#102582 +3
Test gem_mmap_gtt:
        Subgroup basic-small-bo-tiledx:
                fail       -> PASS       (fi-gdg-551) fdo#102575
Test kms_cursor_legacy:
        Subgroup basic-busy-flip-before-cursor-legacy:
                pass       -> FAIL       (fi-gdg-551) fdo#102618
Test kms_pipe_crc_basic:
        Subgroup suspend-read-crc-pipe-b:
                pass       -> INCOMPLETE (fi-snb-2520m) fdo#103713

fdo#103938 https://bugs.freedesktop.org/show_bug.cgi?id=103938
fdo#102582 https://bugs.freedesktop.org/show_bug.cgi?id=102582
fdo#102575 https://bugs.freedesktop.org/show_bug.cgi?id=102575
fdo#102618 https://bugs.freedesktop.org/show_bug.cgi?id=102618
fdo#103713 https://bugs.freedesktop.org/show_bug.cgi?id=103713

fi-bdw-5557u     total:288  pass:267  dwarn:0   dfail:0   fail:0   skip:21  time:444s
fi-bdw-gvtdvm    total:288  pass:264  dwarn:0   dfail:0   fail:0   skip:24  time:446s
fi-blb-e6850     total:288  pass:223  dwarn:1   dfail:0   fail:0   skip:64  time:381s
fi-bsw-n3050     total:288  pass:242  dwarn:0   dfail:0   fail:0   skip:46  time:509s
fi-bwr-2160      total:288  pass:183  dwarn:0   dfail:0   fail:0   skip:105 time:283s
fi-bxt-dsi       total:288  pass:258  dwarn:0   dfail:0   fail:0   skip:30  time:505s
fi-bxt-j4205     total:288  pass:259  dwarn:0   dfail:0   fail:0   skip:29  time:504s
fi-byt-j1900     total:288  pass:253  dwarn:0   dfail:0   fail:0   skip:35  time:483s
fi-byt-n2820     total:288  pass:249  dwarn:0   dfail:0   fail:0   skip:39  time:476s
fi-elk-e7500     total:224  pass:162  dwarn:16  dfail:0   fail:0   skip:45 
fi-gdg-551       total:288  pass:176  dwarn:1   dfail:0   fail:3   skip:108 time:278s
fi-glk-1         total:288  pass:260  dwarn:0   dfail:0   fail:0   skip:28  time:540s
fi-hsw-4770      total:288  pass:261  dwarn:0   dfail:0   fail:0   skip:27  time:361s
fi-hsw-4770r     total:288  pass:224  dwarn:0   dfail:0   fail:0   skip:64  time:261s
fi-ilk-650       total:288  pass:228  dwarn:0   dfail:0   fail:0   skip:60  time:392s
fi-ivb-3520m     total:288  pass:259  dwarn:0   dfail:0   fail:0   skip:29  time:487s
fi-ivb-3770      total:288  pass:259  dwarn:0   dfail:0   fail:0   skip:29  time:448s
fi-kbl-7500u     total:288  pass:263  dwarn:1   dfail:0   fail:0   skip:24  time:490s
fi-kbl-7560u     total:288  pass:269  dwarn:0   dfail:0   fail:0   skip:19  time:529s
fi-kbl-7567u     total:288  pass:268  dwarn:0   dfail:0   fail:0   skip:20  time:475s
fi-kbl-r         total:288  pass:261  dwarn:0   dfail:0   fail:0   skip:27  time:532s
fi-pnv-d510      total:288  pass:222  dwarn:1   dfail:0   fail:0   skip:65  time:585s
fi-skl-6260u     total:288  pass:268  dwarn:0   dfail:0   fail:0   skip:20  time:452s
fi-skl-6600u     total:288  pass:261  dwarn:0   dfail:0   fail:0   skip:27  time:539s
fi-skl-6700hq    total:288  pass:262  dwarn:0   dfail:0   fail:0   skip:26  time:566s
fi-skl-6700k     total:288  pass:264  dwarn:0   dfail:0   fail:0   skip:24  time:512s
fi-skl-6770hq    total:288  pass:268  dwarn:0   dfail:0   fail:0   skip:20  time:498s
fi-skl-gvtdvm    total:288  pass:265  dwarn:0   dfail:0   fail:0   skip:23  time:445s
fi-snb-2520m     total:245  pass:211  dwarn:0   dfail:0   fail:0   skip:33 
fi-snb-2600      total:288  pass:248  dwarn:0   dfail:0   fail:0   skip:40  time:413s
Blacklisted hosts:
fi-cfl-s2        total:288  pass:262  dwarn:0   dfail:0   fail:0   skip:26  time:612s
fi-glk-dsi       total:288  pass:179  dwarn:1   dfail:4   fail:0   skip:104 time:351s

a19f73d6fe96a9aaa7f71d25bbe9f897dc5e9ee1 drm-tip: 2017y-11m-30d-08h-12m-27s UTC integration manifest
942ab79b333c drm/i915: Skip switch-to-kernel-context on suspend when wedged

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7361/
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Re: [PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Chris Wilson]

Quoting Chris Wilson (2017-11-29 19:53:54)
> If the HW is already wedged, attempting to submit a request will
> generate an -EIO. If we tried this during suspend, we would abort
> whereas all we want to do is to go sleep and throw away the corrupt
> state.
> 
> Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
From irc,
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
-Chris
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[PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Chris Wilson]

If the HW is already wedged, attempting to submit a request will
generate an -EIO. If we tried this during suspend, we would abort
whereas all we want to do is to go sleep and throw away the corrupt
state.

Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 354b0546a191..e083f242b8dc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4774,17 +4774,19 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
 	 * state. Fortunately, the kernel_context is disposable and we do
 	 * not rely on its state.
 	 */
-	ret = i915_gem_switch_to_kernel_context(dev_priv);
-	if (ret)
-		goto err_unlock;
+	if (!i915_terminally_wedged(&dev_priv->gpu_error)) {
+		ret = i915_gem_switch_to_kernel_context(dev_priv);
+		if (ret)
+			goto err_unlock;
 
-	ret = i915_gem_wait_for_idle(dev_priv,
-				     I915_WAIT_INTERRUPTIBLE |
-				     I915_WAIT_LOCKED);
-	if (ret && ret != -EIO)
-		goto err_unlock;
+		ret = i915_gem_wait_for_idle(dev_priv,
+					     I915_WAIT_INTERRUPTIBLE |
+					     I915_WAIT_LOCKED);
+		if (ret && ret != -EIO)
+			goto err_unlock;
 
-	assert_kernel_context_is_current(dev_priv);
+		assert_kernel_context_is_current(dev_priv);
+	}
 	i915_gem_contexts_lost(dev_priv);
 	mutex_unlock(&dev->struct_mutex);
 
-- 
2.15.0

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✗ Fi.CI.IGT: failure for drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Patchwork]

== Series Details ==

Series: drm/i915: Skip switch-to-kernel-context on suspend when wedged
URL   : https://patchwork.freedesktop.org/series/34658/
State : failure

== Summary ==

Test kms_setmode:
        Subgroup basic:
                pass       -> FAIL       (shard-hsw) fdo#99912
Test kms_vblank:
        Subgroup accuracy-idle:
                fail       -> PASS       (shard-hsw) fdo#102583
Test perf:
        Subgroup blocking:
                fail       -> PASS       (shard-hsw) fdo#102252
Test kms_frontbuffer_tracking:
        Subgroup fbc-1p-offscren-pri-shrfb-draw-blt:
                pass       -> FAIL       (shard-snb) fdo#101623
Test gem_tiled_swapping:
        Subgroup non-threaded:
                pass       -> INCOMPLETE (shard-snb)
Test gem_busy:
        Subgroup close-race:
                fail       -> PASS       (shard-snb) fdo#103829

fdo#99912 https://bugs.freedesktop.org/show_bug.cgi?id=99912
fdo#102583 https://bugs.freedesktop.org/show_bug.cgi?id=102583
fdo#102252 https://bugs.freedesktop.org/show_bug.cgi?id=102252
fdo#101623 https://bugs.freedesktop.org/show_bug.cgi?id=101623
fdo#103829 https://bugs.freedesktop.org/show_bug.cgi?id=103829

shard-hsw        total:2609 pass:1506 dwarn:1   dfail:0   fail:10  skip:1091 time:9110s
shard-snb        total:2609 pass:1280 dwarn:1   dfail:0   fail:12  skip:1315 time:7776s
Blacklisted hosts:
shard-apl        total:2634 pass:1669 dwarn:2   dfail:0   fail:23  skip:939 time:13184s
shard-kbl        total:2661 pass:1797 dwarn:1   dfail:0   fail:25  skip:838 time:10881s

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_7361/shards.html
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✗ Fi.CI.BAT: failure for drm/i915: Skip switch-to-kernel-context on suspend when wedged (rev2)

[Patchwork]

== Series Details ==

Series: drm/i915: Skip switch-to-kernel-context on suspend when wedged (rev2)
URL   : https://patchwork.freedesktop.org/series/34658/
State : failure

== Summary ==

Applying: drm/i915: Skip switch-to-kernel-context on suspend when wedged
Using index info to reconstruct a base tree...
M	drivers/gpu/drm/i915/i915_gem.c
Falling back to patching base and 3-way merge...
No changes -- Patch already applied.

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Re: [PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Mika Kuoppala]

Chris Wilson <chris@chris-wilson.co.uk> writes:

> If the HW is already wedged, attempting to submit a request will
> generate an -EIO. If we tried this during suspend, we would abort
> whereas all we want to do is to go sleep and throw away the corrupt
> state.
>
> Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/i915_gem.c | 20 +++++++++++---------
>  1 file changed, 11 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 354b0546a191..e083f242b8dc 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4774,17 +4774,19 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
>  	 * state. Fortunately, the kernel_context is disposable and we do
>  	 * not rely on its state.
>  	 */
> -	ret = i915_gem_switch_to_kernel_context(dev_priv);
> -	if (ret)
> -		goto err_unlock;
> +	if (!i915_terminally_wedged(&dev_priv->gpu_error)) {
> +		ret = i915_gem_switch_to_kernel_context(dev_priv);
> +		if (ret)
> +			goto err_unlock;
>  
> -	ret = i915_gem_wait_for_idle(dev_priv,
> -				     I915_WAIT_INTERRUPTIBLE |
> -				     I915_WAIT_LOCKED);
> -	if (ret && ret != -EIO)
> -		goto err_unlock;
> +		ret = i915_gem_wait_for_idle(dev_priv,
> +					     I915_WAIT_INTERRUPTIBLE |
> +					     I915_WAIT_LOCKED);
> +		if (ret && ret != -EIO)
> +			goto err_unlock;
>  
> -	assert_kernel_context_is_current(dev_priv);
> +		assert_kernel_context_is_current(dev_priv);
> +	}
>  	i915_gem_contexts_lost(dev_priv);
>  	mutex_unlock(&dev->struct_mutex);
>  
> -- 
> 2.15.0
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Re: [PATCH] drm/i915: Skip switch-to-kernel-context on suspend when wedged

[Chris Wilson]

Quoting Mika Kuoppala (2017-12-01 09:16:10)
> Chris Wilson <chris@chris-wilson.co.uk> writes:
> 
> > If the HW is already wedged, attempting to submit a request will
> > generate an -EIO. If we tried this during suspend, we would abort
> > whereas all we want to do is to go sleep and throw away the corrupt
> > state.
> >
> > Fixes: 5ab57c702069 ("drm/i915: Flush logical context image out to memory upon suspend")
> > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> > Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
> > Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> > Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>

Ta, snuck it in yesterday then dozed off waiting for confirmation.
-Chris
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