diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2017-10-07 01:18:31 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-10-07 12:12:03 +0300 |
| commit | da9fe3f31a920658debd231ff10b0fbe0f2f34ed (patch) | |
| tree | 5bc23bf4fb9d9c7bf30b3c85b989d805fe11c26a | |
| parent | 7924d9d4dc9ffff32bf099db8c638e11e5457cd7 (diff) | |
| download | linux-da9fe3f31a920658debd231ff10b0fbe0f2f34ed.tar.xz | |
drm/i915: disable platform support for vGPU huge gtt pages
Currently gvt gtt handling doesn't support huge page entries, so disable
for now.
v2: remove useless 48b PPGTT check
Suggested-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-20-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-19-chris@chris-wilson.co.uk
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index f8c3ac1c8c67..82a10036fb38 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4822,6 +4822,15 @@ int i915_gem_init(struct drm_i915_private *dev_priv) mutex_lock(&dev_priv->drm.struct_mutex); + /* + * We need to fallback to 4K pages since gvt gtt handling doesn't + * support huge page entries - we will need to check either hypervisor + * mm can support huge guest page or just do emulation in gvt. + */ + if (intel_vgpu_active(dev_priv)) + mkwrite_device_info(dev_priv)->page_sizes = + I915_GTT_PAGE_SIZE_4K; + dev_priv->mm.unordered_timeline = dma_fence_context_alloc(1); if (!i915_modparams.enable_execlists) { |