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author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-20 14:05:46 +0300 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-20 19:13:47 +0300 |
commit | 5f09a9c8ab6b16eefbcf81635330d68481af1edc (patch) | |
tree | e374d562ed64abf863cb5d9986f784edc8bde41a /drivers/gpu/drm/i915/i915_drv.c | |
parent | 829a0af29f70612f505302cc785a1ddd2bac148b (diff) | |
download | linux-5f09a9c8ab6b16eefbcf81635330d68481af1edc.tar.xz |
drm/i915: Allow contexts to be unreferenced locklessly
If we move the actual cleanup of the context to a worker, we can allow
the final free to be called from any context and avoid undue latency in
the caller.
v2: Negotiate handling the delayed contexts free by flushing the
workqueue before calling i915_gem_context_fini() and performing the final
free of the kernel context directly
v3: Flush deferred frees before new context allocations
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170620110547.15947-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 36585b6e3718..fe3d46ee4ddc 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -585,6 +585,8 @@ static const struct vga_switcheroo_client_ops i915_switcheroo_ops = { static void i915_gem_fini(struct drm_i915_private *dev_priv) { + flush_workqueue(dev_priv->wq); + mutex_lock(&dev_priv->drm.struct_mutex); intel_uc_fini_hw(dev_priv); i915_gem_cleanup_engines(dev_priv); |