diff options
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/igt_flush_test.c')
-rw-r--r-- | drivers/gpu/drm/i915/selftests/igt_flush_test.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/igt_flush_test.c b/drivers/gpu/drm/i915/selftests/igt_flush_test.c new file mode 100644 index 000000000000..0d06f559243f --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/igt_flush_test.c @@ -0,0 +1,70 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2018 Intel Corporation + */ + +#include "../i915_drv.h" + +#include "../i915_selftest.h" +#include "igt_flush_test.h" + +struct wedge_me { + struct delayed_work work; + struct drm_i915_private *i915; + const void *symbol; +}; + +static void wedge_me(struct work_struct *work) +{ + struct wedge_me *w = container_of(work, typeof(*w), work.work); + + pr_err("%pS timed out, cancelling all further testing.\n", w->symbol); + + GEM_TRACE("%pS timed out.\n", w->symbol); + GEM_TRACE_DUMP(); + + i915_gem_set_wedged(w->i915); +} + +static void __init_wedge(struct wedge_me *w, + struct drm_i915_private *i915, + long timeout, + const void *symbol) +{ + w->i915 = i915; + w->symbol = symbol; + + INIT_DELAYED_WORK_ONSTACK(&w->work, wedge_me); + schedule_delayed_work(&w->work, timeout); +} + +static void __fini_wedge(struct wedge_me *w) +{ + cancel_delayed_work_sync(&w->work); + destroy_delayed_work_on_stack(&w->work); + w->i915 = NULL; +} + +#define wedge_on_timeout(W, DEV, TIMEOUT) \ + for (__init_wedge((W), (DEV), (TIMEOUT), __builtin_return_address(0)); \ + (W)->i915; \ + __fini_wedge((W))) + +int igt_flush_test(struct drm_i915_private *i915, unsigned int flags) +{ + struct wedge_me w; + + cond_resched(); + + if (flags & I915_WAIT_LOCKED && + i915_gem_switch_to_kernel_context(i915)) { + pr_err("Failed to switch back to kernel context; declaring wedged\n"); + i915_gem_set_wedged(i915); + } + + wedge_on_timeout(&w, i915, HZ) + i915_gem_wait_for_idle(i915, flags); + + return i915_terminally_wedged(&i915->gpu_error) ? -EIO : 0; +} |