From 0eb6a3f7ef99e7de19efb1293be0571b1d4e83cd Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 8 Feb 2019 15:37:04 +0000 Subject: [PATCH] drm/i915: Force the GPU reset upon wedging When declaring the GPU wedged, we do need to hit the GPU with the reset hammer so that its state matches our presumed state during cleanup. If the reset fails, it fails, and we may be unhappy but wedged. However, if we are testing our wedge/unwedged handling, the desync carries over into the next test and promptly explodes. References: https://bugs.freedesktop.org/show_bug.cgi?id=106702 Signed-off-by: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20190208153708.20023-3-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_reset.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c index c67d6c2a09a2..64f26e17243a 100644 --- a/drivers/gpu/drm/i915/i915_reset.c +++ b/drivers/gpu/drm/i915/i915_reset.c @@ -532,9 +532,6 @@ typedef int (*reset_func)(struct drm_i915_private *, static reset_func intel_get_gpu_reset(struct drm_i915_private *i915) { - if (!i915_modparams.reset) - return NULL; - if (INTEL_GEN(i915) >= 8) return gen8_reset_engines; else if (INTEL_GEN(i915) >= 6) @@ -599,6 +596,9 @@ bool intel_has_gpu_reset(struct drm_i915_private *i915) if (USES_GUC(i915)) return false; + if (!i915_modparams.reset) + return NULL; + return intel_get_gpu_reset(i915); } @@ -824,7 +824,7 @@ void i915_gem_set_wedged(struct drm_i915_private *i915) reset_prepare_engine(engine); /* Even if the GPU reset fails, it should still stop the engines */ - if (INTEL_GEN(i915) >= 5) + if (!INTEL_INFO(i915)->gpu_reset_clobbers_display) intel_gpu_reset(i915, ALL_ENGINES); for_each_engine(engine, i915, id) { -- 2.30.2