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From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH] drm/i915: Restore the kernel context after verifying the w/a
Date: Sun, 26 Jan 2020 19:46:18 +0000	[thread overview]
Message-ID: <20200126194618.2131078-1-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20200126193107.2097477-1-chris@chris-wilson.co.uk>

As a safety net, flush the engine verifications and restore the kernel
context.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/971
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_gt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index da2b6e2ae692..88b6c904607c 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -538,6 +538,10 @@ static int __engines_verify_workarounds(struct intel_gt *gt)
 			err = -EIO;
 	}
 
+	/* Flush and restore the kernel context for safety */
+	if (intel_gt_wait_for_idle(gt, I915_GEM_IDLE_TIMEOUT) == -ETIME)
+		err = -EIO;
+
 	return err;
 }
 
-- 
2.25.0

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  reply	other threads:[~2020-01-26 19:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-26 19:31 [Intel-gfx] [PATCH] drm/i915: Restore the kernel context after verifying the w/a Chris Wilson
2020-01-26 19:46 ` Chris Wilson [this message]
2020-01-27 12:20   ` Mika Kuoppala
2020-01-27 21:08 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Restore the kernel context after verifying the w/a (rev2) Patchwork
2020-01-28 16:36 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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