From: Zhi Wang <zhi.a.wang@xxxxxxxxx> This patch makes PPGTT page table non-shrinkable when using aliasing PPGTT mode. It's just a temporary solution for making GVT-g work. Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> Cc: Michal Winiarski <michal.winiarski@xxxxxxxxx> Cc: Michel Thierry <michel.thierry@xxxxxxxxx> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx> Cc: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> Cc: Zhiyuan Lv <zhiyuan.lv@xxxxxxxxx> Signed-off-by: Zhi Wang <zhi.a.wang@xxxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/1486559013-25251-2-git-send-email-zhi.a.wang@xxxxxxxxx Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Cc: <drm-intel-fixes@xxxxxxxxxxxxxxxxxxxxx> # v4.10-rc1+ Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 850d40ec77af..90acddbaaa5e 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -755,9 +755,10 @@ 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 (bitmap_empty(pt->used_ptes, GEN8_PTES)) - return true; + if (USES_FULL_PPGTT(vm->i915)) { + if (bitmap_empty(pt->used_ptes, GEN8_PTES)) + return true; + } pt_vaddr = kmap_px(pt); -- 2.11.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
