Quoting Linus Torvalds (2020-01-30 16:13:24)
> On Wed, Jan 29, 2020 at 9:58 PM Dave Airlie <airlied@xxxxxxxxx> wrote:
> >
> > It has two known conflicts, one in i915_gem_gtt, where you should juat
> > take what's in the pull (it looks messier than it is),
>
> That doesn't seem right. If I do that, I lose the added GEM_BUG_ON()'s.
>
> I think the proper merge resolution does this:
>
> diff --git a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
> b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
> index f10b2c41571c..f4fec7eb4064 100644
> --- a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
> +++ b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
> @@ -131,6 +131,7 @@ static void gen6_ppgtt_insert_entries(struct
> i915_address_space *vm,
>
> vaddr = kmap_atomic_px(i915_pt_entry(pd, act_pt));
> do {
> + GEM_BUG_ON(iter.sg->length < I915_GTT_PAGE_SIZE);
> vaddr[act_pte] = pte_encode | GEN6_PTE_ADDR_ENCODE(iter.dma);
>
> iter.dma += I915_GTT_PAGE_SIZE;
> diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> index 077b8f7cf6cb..4d1de2d97d5c 100644
> --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c
> @@ -379,6 +379,7 @@ gen8_ppgtt_insert_pte(struct i915_ppgtt *ppgtt,
> pd = i915_pd_entry(pdp, gen8_pd_index(idx, 2));
> vaddr = kmap_atomic_px(i915_pt_entry(pd, gen8_pd_index(idx, 1)));
> do {
> + GEM_BUG_ON(iter->sg->length < I915_GTT_PAGE_SIZE);
> vaddr[gen8_pd_index(idx, 0)] = pte_encode | iter->dma;
>
> iter->dma += I915_GTT_PAGE_SIZE;
Yes, that matches the code in drm-intel-next-queued.
-Chris
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