This timeout is only used in one place, to provide a tiny bit of grace
for slow igt to cleanup after themselves. If we are a bit stricter and
opt to kill outstanding requsts rather than wait, we can speed up igt by
not waiting for 200ms after a hang.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_debugfs.c | 11 ++++++-----
drivers/gpu/drm/i915/i915_drv.h | 2 --
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index bca036ac6621..c0bd26ef4772 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1462,12 +1462,13 @@ gt_drop_caches(struct intel_gt *gt, u64 val)
{
int ret;
- if (val & DROP_RESET_ACTIVE &&
- wait_for(intel_engines_are_idle(gt), I915_IDLE_ENGINES_TIMEOUT))
- intel_gt_set_wedged(gt);
+ if (val & (DROP_RETIRE | DROP_RESET_ACTIVE))
+ intel_gt_wait_for_idle(gt, 1);
- if (val & DROP_RETIRE)
- intel_gt_retire_requests(gt);
+ if (val & DROP_RESET_ACTIVE && intel_gt_pm_get_if_awake(gt)) {
+ intel_gt_set_wedged(gt);
+ intel_gt_pm_put(gt);
+ }
if (val & (DROP_IDLE | DROP_ACTIVE)) {
ret = intel_gt_wait_for_idle(gt, MAX_SCHEDULE_TIMEOUT);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 98f2c448cd92..5140b90f7f7d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -616,8 +616,6 @@ struct i915_gem_mm {
u32 shrink_count;
};
-#define I915_IDLE_ENGINES_TIMEOUT (200) /* in ms */
-
unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915,
u64 context);
--
2.20.1
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