Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4f3308b9 authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: there's no PIPESTAT on HAS_PCH_SPLIT platforms 



So don't read it when capturing the error state. This solves
"unclaimed register" messages on Haswell when we have a GPU hang.

V2: Check for HAS_PCH_SPLIT instead of Gen5+ because VLV still has
this register.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 80ca378b

drivers/gpu/drm/i915/i915_irq.c

+3 −2
Original line number Diff line number Diff line
@@ -1387,6 +1387,7 @@ static void i915_capture_error_state(struct drm_device *dev) 
	else if (INTEL_INFO(dev)->gen == 6)

		error->forcewake = I915_READ(FORCEWAKE);



	if (!HAS_PCH_SPLIT(dev))

		for_each_pipe(pipe)

			error->pipestat[pipe] = I915_READ(PIPESTAT(pipe));