Commit 755412e2 authored by Chris Wilson's avatar Chris Wilson Committed by Daniel Vetter

drm/i915: Add an optional selection from i915 of CONFIG_MMU_NOTIFIER

userptr requires mmu-notifier for full unprivileged support. Most
systems have mmu-notifier support already enabled as a requirement for
virtualisation support, but we should make the option for i915 to take
advantage of mmu-notifiers explicit (and enable by default so that
regular userspace can take advantage of passing client memory to the
GPU.)
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452503961-14837-3-git-send-email-chris@chris-wilson.co.uk
parent ea49c9ac
...@@ -45,3 +45,14 @@ config DRM_I915_PRELIMINARY_HW_SUPPORT ...@@ -45,3 +45,14 @@ config DRM_I915_PRELIMINARY_HW_SUPPORT
option changes the default for that module option. option changes the default for that module option.
If in doubt, say "N". If in doubt, say "N".
config DRM_I915_USERPTR
bool "Always enable userptr support"
depends on DRM_I915
select MMU_NOTIFIER
default y
help
This option selects CONFIG_MMU_NOTIFIER if it isn't already
selected to enabled full userptr support.
If in doubt, say "Y".
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment