From: Chris Wilson Date: Sat, 25 Mar 2017 13:47:35 +0000 (+0000) Subject: drm/i915: Mark manually wedged engines as guilty X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=598b6b5ada3f8a3ecd7bd821f7df87ca8ea0f053;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Mark manually wedged engines as guilty Use the incoming value from debugfs/i915_wedged to select which engines to marked as guilty in order to force us to reset those requests (required to quickly bypass simulated hangs). Testcase: igt/gem_exec_capture Signed-off-by: Chris Wilson Cc: Mika Kuoppala Link: http://patchwork.freedesktop.org/patch/msgid/20170325134735.30581-1-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 3ebdbc798f33..316bc47a8eea 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4126,7 +4126,9 @@ i915_wedged_get(void *data, u64 *val) static int i915_wedged_set(void *data, u64 val) { - struct drm_i915_private *dev_priv = data; + struct drm_i915_private *i915 = data; + struct intel_engine_cs *engine; + unsigned int tmp; /* * There is no safeguard against this debugfs entry colliding @@ -4136,13 +4138,17 @@ i915_wedged_set(void *data, u64 val) * while it is writing to 'i915_wedged' */ - if (i915_reset_backoff(&dev_priv->gpu_error)) + if (i915_reset_backoff(&i915->gpu_error)) return -EAGAIN; - i915_handle_error(dev_priv, val, - "Manually setting wedged to %llu", val); + for_each_engine_masked(engine, i915, val, tmp) { + engine->hangcheck.seqno = intel_engine_get_seqno(engine); + engine->hangcheck.stalled = true; + } + + i915_handle_error(i915, val, "Manually setting wedged to %llu", val); - wait_on_bit(&dev_priv->gpu_error.flags, + wait_on_bit(&i915->gpu_error.flags, I915_RESET_HANDOFF, TASK_UNINTERRUPTIBLE);