From e6661a96647447aee83db976e8aad3d3a5c30cbd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <deathsimple@vodafone.de>
Date: Wed, 9 May 2012 15:34:52 +0200
Subject: drm/radeon: keep start and end offset in the SA
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Instead of offset + size keep start and end offset directly.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8a6b1b3..d1c2154 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -396,8 +396,8 @@ struct radeon_sa_bo;
 struct radeon_sa_bo {
 	struct list_head		list;
 	struct radeon_sa_manager	*manager;
-	unsigned			offset;
-	unsigned			size;
+	unsigned			soffset;
+	unsigned			eoffset;
 };
 
 /*
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 289b0d7..b778037 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -477,7 +477,7 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
 		/* ib pool is bind at 0 in virtual address space to gpu_addr is the
 		 * offset inside the pool bo
 		 */
-		parser->const_ib->gpu_addr = parser->const_ib->sa_bo.offset;
+		parser->const_ib->gpu_addr = parser->const_ib->sa_bo.soffset;
 		r = radeon_ib_schedule(rdev, parser->const_ib);
 		if (r)
 			goto out;
@@ -487,7 +487,7 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
 	/* ib pool is bind at 0 in virtual address space to gpu_addr is the
 	 * offset inside the pool bo
 	 */
-	parser->ib->gpu_addr = parser->ib->sa_bo.offset;
+	parser->ib->gpu_addr = parser->ib->sa_bo.soffset;
 	parser->ib->is_const_ib = false;
 	r = radeon_ib_schedule(rdev, parser->ib);
 out:
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index d9fca1e..99ab46a 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -149,12 +149,12 @@ extern struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo,
 
 static inline uint64_t radeon_sa_bo_gpu_addr(struct radeon_sa_bo *sa_bo)
 {
-	return sa_bo->manager->gpu_addr + sa_bo->offset;
+	return sa_bo->manager->gpu_addr + sa_bo->soffset;
 }
 
 static inline void * radeon_sa_bo_cpu_addr(struct radeon_sa_bo *sa_bo)
 {
-	return sa_bo->manager->cpu_ptr + sa_bo->offset;
+	return sa_bo->manager->cpu_ptr + sa_bo->soffset;
 }
 
 extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c
index 1db0568..3bea7ba 100644
--- a/drivers/gpu/drm/radeon/radeon_sa.c
+++ b/drivers/gpu/drm/radeon/radeon_sa.c
@@ -152,11 +152,11 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
 	offset = 0;
 	list_for_each_entry(tmp, &sa_manager->sa_bo, list) {
 		/* room before this object ? */
-		if (offset < tmp->offset && (tmp->offset - offset) >= size) {
+		if (offset < tmp->soffset && (tmp->soffset - offset) >= size) {
 			head = tmp->list.prev;
 			goto out;
 		}
-		offset = tmp->offset + tmp->size;
+		offset = tmp->eoffset;
 		wasted = offset % align;
 		if (wasted) {
 			wasted = align - wasted;
@@ -166,7 +166,7 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
 	/* room at the end ? */
 	head = sa_manager->sa_bo.prev;
 	tmp = list_entry(head, struct radeon_sa_bo, list);
-	offset = tmp->offset + tmp->size;
+	offset = tmp->eoffset;
 	wasted = offset % align;
 	if (wasted) {
 		wasted = align - wasted;
@@ -180,8 +180,8 @@ int radeon_sa_bo_new(struct radeon_device *rdev,
 
 out:
 	sa_bo->manager = sa_manager;
-	sa_bo->offset = offset;
-	sa_bo->size = size;
+	sa_bo->soffset = offset;
+	sa_bo->eoffset = offset + size;
 	list_add(&sa_bo->list, head);
 	spin_unlock(&sa_manager->lock);
 	return 0;
@@ -202,7 +202,8 @@ void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
 
 	spin_lock(&sa_manager->lock);
 	list_for_each_entry(i, &sa_manager->sa_bo, list) {
-		seq_printf(m, "offset %08d: size %4d\n", i->offset, i->size);
+		seq_printf(m, "[%08x %08x] size %4d [%p]\n",
+			   i->soffset, i->eoffset, i->eoffset - i->soffset, i);
 	}
 	spin_unlock(&sa_manager->lock);
 }
-- 
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