drm/i915: don't save/restore HWS_PGA reg for kms

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We already do that as part of the ringbuffer re-setup at resume time.
Furthermore the register offset has moved on gen6+ around quite a bit,
and on ilk/gm45 we also need to restore the HWS reg for the bsd ring,
not just the render ring.

So again in kms mode this is only confusing a best, hence don't
bother.

v2: Fixup logic, noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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This commit is contained in:

Daniel Vetter 2012-10-17 11:32:57 +02:00

parent 905c27bb0d

commit c630119f43

1 changed files with 4 additions and 2 deletions

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drivers/gpu/drm/i915/i915_suspend.c

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