This patch makes PPGTT page table non-shrinkable when using aliasing PPGTT mode. It's just a temporary solution for making aliasing PPGTT mode work.
Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com> Cc: Michal Winiarski <michal.winiar...@intel.com> Cc: Michel Thierry <michel.thie...@intel.com> Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com> Cc: Chris Wilson <ch...@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vet...@intel.com> Cc: Zhenyu Wang <zhen...@linux.intel.com> Cc: Zhiyuan Lv <zhiyuan...@intel.com> Signed-off-by: Zhi Wang <zhi.a.w...@intel.com> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 22b3374..3af3b1c 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -754,10 +754,12 @@ static bool gen8_ppgtt_clear_pt(struct i915_address_space *vm, GEM_BUG_ON(pte_end > GEN8_PTES); - bitmap_clear(pt->used_ptes, pte, num_entries); + if (USES_FULL_PPGTT(vm->i915)) { + bitmap_clear(pt->used_ptes, pte, num_entries); - if (bitmap_empty(pt->used_ptes, GEN8_PTES)) - return true; + if (bitmap_empty(pt->used_ptes, GEN8_PTES)) + return true; + } pt_vaddr = kmap_px(pt); -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx