1. 06 Jul, 2018 31 commits
  2. 05 Jul, 2018 8 commits
  3. 04 Jul, 2018 1 commit
    • Chris Wilson's avatar
      drm/i915/gtt: Pull global wc page stash under its own locking · 63fd659f
      Chris Wilson authored
      Currently, the wc-stash used for providing flushed WC pages ready for
      constructing the page directories is assumed to be protected by the
      struct_mutex. However, we want to remove this global lock and so must
      install a replacement global lock for accessing the global wc-stash (the
      per-vm stash continues to be guarded by the vm).
      
      We need to push ahead on this patch due to an oversight in hastily
      removing the struct_mutex guard around the igt_ppgtt_alloc selftest. No
      matter, it will prove very useful (i.e. will be required) in the near
      future.
      
      v2: Restore the onstack stash so that we can drop the vm->mutex in
      future across the allocation.
      v3: Restore the lost pagevec_init of the onstack allocation, and repaint
      function names.
      v4: Reorder init so that we don't try and use i915_address_space before
      it is ininitialised.
      
      Fixes: 1f6f0023 ("drm/i915/selftests: Drop struct_mutex around lowlevel pggtt allocation")
      Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20180704185518.4193-1-chris@chris-wilson.co.uk
      63fd659f