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author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-07-06 18:01:38 +0100 |
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committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2020-07-07 18:00:15 -0700 |
commit | 5a383d443b29a140094430f3ad1d02fa1acc2b80 (patch) | |
tree | fed8ee32effc5945a2eafff72c4f52f8d3690f4b /drivers/tee/Kconfig | |
parent | cf1976b11372cac3b57fbae1831f66a4486355d3 (diff) | |
download | linux-5a383d443b29a140094430f3ad1d02fa1acc2b80.tar.bz2 |
drm/i915/gt: Pin the rings before marking active
On eviction, we acquire the vm->mutex and then wait on the vma->active.
Therefore when binding and pinning the vma, we must follow the same
sequence, lock/pin the vma then mark it active. Otherwise, we mark the
vma as active, then wait for the vm->mutex, and meanwhile the evictor
holding the mutex waits upon us to complete our activity.
Fixes: 8ccfc20a7d56 ("drm/i915/gt: Mark ring->vma as active while pinned")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v5.6+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200706170138.8993-1-chris@chris-wilson.co.uk
(cherry picked from commit 8567774e87e23a57155e5102f81208729b992ae6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/tee/Kconfig')
0 files changed, 0 insertions, 0 deletions