From: Zhi Wang <[email protected]> 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 <[email protected]> Cc: Michal Winiarski <[email protected]> Cc: Michel Thierry <[email protected]> Cc: Mika Kuoppala <[email protected]> Cc: Joonas Lahtinen <[email protected]> Cc: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Zhenyu Wang <[email protected]> Cc: Zhiyuan Lv <[email protected]> Signed-off-by: Zhi Wang <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Chris Wilson <[email protected]> Cc: <[email protected]> # v4.10-rc1+ Signed-off-by: Chris Wilson <[email protected]> --- 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 [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
