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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-07-13 19:05:49 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2020-07-14 20:31:23 +0300 |
| commit | 110f9efa858f584c6bed177cd48d0c0f526940e1 (patch) | |
| tree | 9db4cb71462c2db88ed19882e273aa741eebb312 /drivers/gpu/drm/i915/i915_params.h | |
| parent | 858f1299fd6f7518ddef19ddd304c8398ac79fa5 (diff) | |
| download | linux-110f9efa858f584c6bed177cd48d0c0f526940e1.tar.xz | |
drm/i915/gt: Only swap to a random sibling once upon creation
The danger in switching at random upon intel_context_pin is that the
context may still actually be inflight, as it will not be scheduled out
until a context switch after it is complete -- that may be a long time
after we do a final intel_context_unpin.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2118
Fixes: 6d06779e8672 ("drm/i915: Load balancing across a virtual engine")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v5.3+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200713160549.17344-1-chris@chris-wilson.co.uk
(cherry picked from commit 90a987205c6cf74116a102ed446d22d92cdaf915)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.h')
0 files changed, 0 insertions, 0 deletions