From 63b5633c799e2284f88bd22c91063f6616154d4d Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@chromium.org>
Date: Mon, 11 Apr 2022 14:58:33 -0700
Subject: drm/msm/gem: Split out inuse helper
Git-commit: ca35ab2a2059c08799f0d0c5fcab8a6cc4d89dbd
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

Prep for a following patch, where it gets a bit more complicated.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220411215849.297838-5-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/msm/msm_gem.c     | 2 +-
 drivers/gpu/drm/msm/msm_gem.h     | 1 +
 drivers/gpu/drm/msm/msm_gem_vma.c | 9 +++++++--
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 8f492656c9ad..ad20de1aa46b 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -939,7 +939,7 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m,
 				name, comm ? ":" : "", comm ? comm : "",
 				vma->aspace, vma->iova,
 				vma->mapped ? "mapped" : "unmapped",
-				vma->inuse);
+				msm_gem_vma_inuse(vma));
 			kfree(comm);
 		}
 
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 947ff7d9b471..1b7f0f0b88bf 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -61,6 +61,7 @@ struct msm_gem_vma {
 int msm_gem_init_vma(struct msm_gem_address_space *aspace,
 		struct msm_gem_vma *vma, int npages,
 		u64 range_start, u64 range_end);
+bool msm_gem_vma_inuse(struct msm_gem_vma *vma);
 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
 		struct msm_gem_vma *vma);
 void msm_gem_unmap_vma(struct msm_gem_address_space *aspace,
diff --git a/drivers/gpu/drm/msm/msm_gem_vma.c b/drivers/gpu/drm/msm/msm_gem_vma.c
index 64906594fc65..dc2ae097805e 100644
--- a/drivers/gpu/drm/msm/msm_gem_vma.c
+++ b/drivers/gpu/drm/msm/msm_gem_vma.c
@@ -37,6 +37,11 @@ msm_gem_address_space_get(struct msm_gem_address_space *aspace)
 	return aspace;
 }
 
+bool msm_gem_vma_inuse(struct msm_gem_vma *vma)
+{
+	return !!vma->inuse;
+}
+
 /* Actually unmap memory for the vma */
 void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
 		struct msm_gem_vma *vma)
@@ -44,7 +49,7 @@ void msm_gem_purge_vma(struct msm_gem_address_space *aspace,
 	unsigned size = vma->node.size << PAGE_SHIFT;
 
 	/* Print a message if we try to purge a vma in use */
-	if (GEM_WARN_ON(vma->inuse > 0))
+	if (GEM_WARN_ON(msm_gem_vma_inuse(vma)))
 		return;
 
 	/* Don't do anything if the memory isn't mapped */
@@ -100,7 +105,7 @@ msm_gem_map_vma(struct msm_gem_address_space *aspace,
 void msm_gem_close_vma(struct msm_gem_address_space *aspace,
 		struct msm_gem_vma *vma)
 {
-	if (GEM_WARN_ON(vma->inuse > 0 || vma->mapped))
+	if (GEM_WARN_ON(msm_gem_vma_inuse(vma) || vma->mapped))
 		return;
 
 	spin_lock(&aspace->lock);
-- 
2.38.1