Chris Wilson 4178b5a60c drm/i915/gt: Prevent timeslicing into unpreemptable requests ... We have a I915_REQUEST_NOPREEMPT flag that we set when we must prevent the HW from preempting during the course of this request. We need to honour this flag and protect the HW even if we have a heartbeat request, or other maximum priority barrier, pending. As such, restrict the timeslicing check to avoid preempting into the topmost priority band, leaving the unpreemptable requests in blissful peace running uninterrupted on the HW. v2: Set the I915_PRIORITY_BARRIER to be less than I915_PRIORITY_UNPREEMPTABLE so that we never submit a request (heartbeat or barrier) that can legitimately preempt the current non-premptable request. Fixes: 2a98f4e65b ("drm/i915: add infrastructure to hold off preemption on a request") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200527162418.24755-1-chris@chris-wilson.co.uk (cherry picked from commit b72f02d78e) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>		2020-06-16 11:34:23 +03:00
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drm	drm/i915/gt: Prevent timeslicing into unpreemptable requests	2020-06-16 11:34:23 +03:00
host1x	gpu: host1x: Use SMMU on Tegra124 and Tegra210	2020-04-28 11:44:07 +02:00
ipu-v3
trace	gpu/trace: add a gpu total memory usage tracepoint	2020-03-03 17:52:41 -05:00
vga
Makefile	gpu/trace: add a gpu total memory usage tracepoint	2020-03-03 17:52:41 -05:00