[PATCH v2 2/5] drm/i915: define HAS_MAPPABLE_APERTURE

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From: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>

The following patches in the series will use it to avoid certain
operations when aperture is not available in HW.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_drv.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fa6dd301a738..659319f03f18 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2080,6 +2080,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define OVERLAY_NEEDS_PHYSICAL(dev_priv) \
 		(INTEL_INFO(dev_priv)->display.overlay_needs_physical)
 
+#define HAS_MAPPABLE_APERTURE(dev_priv) (dev_priv->ggtt.mappable_end > 0)
+
 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
 #define HAS_BROKEN_CS_TLB(dev_priv)	(IS_I830(dev_priv) || IS_I845G(dev_priv))
 
-- 
2.23.0

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