drm/i915: align 64K objects to 2M
authorMatthew Auld <matthew.auld@intel.com>
Fri, 6 Oct 2017 22:18:21 +0000 (23:18 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Sat, 7 Oct 2017 09:11:53 +0000 (10:11 +0100)
commit855822be74a957073143268bf976739de016937f
tree4850d47bf8f5718a6b8fa052f47e5a719478e379
parent7464284b357776b19e4cfb50d0d3724bdff035df
drm/i915: align 64K objects to 2M

We can't mix 64K and 4K pte's in the same page-table, so for now we
align 64K objects to 2M to avoid any potential mixing. This is
potentially wasteful but in reality shouldn't be too bad since this only
applies to the virtual address space of a 48b PPGTT.

v2: don't separate logically connected ops

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
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>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006145041.21673-10-matthew.auld@intel.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006221833.32439-9-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_vma.c