On ti, 2016-04-12 at 16:57 +0100, Matthew Auld wrote:
> We need to kunmap pt_vaddr and not pt itself, otherwise we end up
> mapping a bunch of pages without ever unmapping them.
>
It's always a good idea to use 'git blame' to figure out the bug
inducing commit, and include that information + CC'ing the author (Mika
here):
Fixes: d1c54acd67dc ("drm/i915/gtt: Introduce kmap|kunmap for dma page")
With that added,
Reviewed-by: Joonas Lahtinen <[email protected]>
Mika to comment on too, looks like fairly straightforward error when
doing a mass replace.
Regards, Joonas
> Cc: Chris Wilson <[email protected]>
> Cc: Joonas Lahtinen <[email protected]>
> Signed-off-by: Matthew Auld <[email protected]>
> ---
> drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
> b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 6601b11..7aef7bf 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -746,7 +746,7 @@ static void gen8_ppgtt_clear_pte_range(struct
> i915_address_space *vm,
> num_entries--;
> }
>
> - kunmap_px(ppgtt, pt);
> + kunmap_px(ppgtt, pt_vaddr);
>
> pte = 0;
> if (++pde == I915_PDES) {
--
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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