[PATCH 10/14] drm/msm: Add msm_mmu features

[Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>]

Add a few simple support functions to support a bitmask of
features that a specific MMU implementation supports.  The
first feature will be per-instance pagetables coming in the
following patch.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
 drivers/gpu/drm/msm/msm_mmu.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/msm/msm_mmu.h b/drivers/gpu/drm/msm/msm_mmu.h
index aa2c5d4580c8..85df78d71398 100644
--- a/drivers/gpu/drm/msm/msm_mmu.h
+++ b/drivers/gpu/drm/msm/msm_mmu.h
@@ -35,6 +35,7 @@ struct msm_mmu {
 	struct device *dev;
 	int (*handler)(void *arg, unsigned long iova, int flags);
 	void *arg;
+	unsigned long features;
 };
 
 static inline void msm_mmu_init(struct msm_mmu *mmu, struct device *dev,
@@ -54,4 +55,16 @@ static inline void msm_mmu_set_fault_handler(struct msm_mmu *mmu, void *arg,
 	mmu->handler = handler;
 }
 
+static inline void msm_mmu_set_feature(struct msm_mmu *mmu,
+		unsigned long feature)
+{
+	mmu->features |= feature;
+}
+
+static inline bool msm_mmu_has_feature(struct msm_mmu *mmu,
+		unsigned long feature)
+{
+	return (mmu->features & feature) ? true : false;
+}
+
 #endif /* __MSM_MMU_H__ */
-- 
2.16.1

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