Re: [PATCH 03/21] drm/i915/gtt: Check va range against vm size

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On 6/11/2015 3:23 PM, Mika Kuoppala wrote:
Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> writes:

On pe, 2015-05-22 at 20:04 +0300, Mika Kuoppala wrote:
Check the allocation area against the known end
of address space instead of against fixed value.

v2: Return ENODEV on internal bugs (Chris)

Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
---
  drivers/gpu/drm/i915/i915_gem_gtt.c | 18 +++++++++++-------
  1 file changed, 11 insertions(+), 7 deletions(-)


Why is it not enough just to change the WARN_ON test?


Might have be cleaner yes. I just wanted to keep the pde iteration
loop using 32bit arithmetic like it used to.

Unless Joonas has any more comments,

Reviewed-by: Michel Thierry <michel.thierry@xxxxxxxxx>

-Mika


      bitmap_zero(new_page_tables, I915_PDES);

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