commit 3526b607b02397cdb6d459594e4f1d63133d6655
author Thomas Hellström <thomas.hellstrom@linux.intel.com> Tue Feb 01 08:03:40 2022 +0100
committer Tvrtko Ursulin <tvrtko.ursulin@intel.com> Mon Feb 07 12:56:49 2022 +0000
tree ea5c202f9d54ee28c909d2d4a189151c69ca6b2f
parent ee59792c97176f12c1da31f29fc4c2aab187f06e

drm/i915/ttm: Return some errors instead of trying memcpy move

The i915_ttm_accel_move() function may return error codes that should
be propagated further up the stack rather than consumed assuming that
the accel move failed and could be replaced with a memcpy move.

For -EINTR, -ERESTARTSYS and -EAGAIN, just propagate those codes, rather
than retrying with a memcpy move.

Fixes: 2b0a750caf33 ("drm/i915/ttm: Failsafe migration blits")
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220201070340.16457-1-thomas.hellstrom@linux.intel.com
(cherry picked from commit 29b9702ffe70d83b9970abbccaeb287dfda4409f)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>