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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-01-11 09:16:14 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-02-17 13:58:46 +0100 |
| commit | 755412e29c7745368316d890dde0398f58c3cf72 (patch) | |
| tree | ff27b083877d441eccec0085b96e0a892776d5e4 /drivers/gpu/drm/i915 | |
| parent | ea49c9acf2db7082f0406bb3a570cc6bad37082b (diff) | |
| download | op-kernel-dev-755412e29c7745368316d890dde0398f58c3cf72.zip op-kernel-dev-755412e29c7745368316d890dde0398f58c3cf72.tar.gz | |
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: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452503961-14837-3-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index 4c59793..20a5d04 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -45,3 +45,14 @@ config DRM_I915_PRELIMINARY_HW_SUPPORT option changes the default for that module option. 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". |
