drm/qxl: switch over to the new pin interface

Stop using TTM_PL_FLAG_NO_EVICT.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.freedesktop.org/patch/391607/?series=81973&rev=1

drivers/gpu/drm/qxl/qxl_debugfs.c

@@ -67,7 +67,7 @@ qxl_debugfs_buffers_info(struct seq_file *m, void *data)
 
 		seq_printf(m, "size %ld, pc %d, num releases %d\n",
 			   (unsigned long)bo->tbo.base.size,
-			   bo->pin_count, rel);
+			   bo->tbo.pin_count, rel);
 	}
 	return 0;
 }

drivers/gpu/drm/qxl/qxl_drv.h

@@ -80,7 +80,6 @@ struct qxl_bo {
 	struct ttm_place		placements[3];
 	struct ttm_placement		placement;
 	struct ttm_bo_kmap_obj		kmap;
-	unsigned int pin_count;
 	void				*kptr;
 	unsigned int                    map_count;
 	int                             type;

drivers/gpu/drm/qxl/qxl_ioctl.c

@@ -326,8 +326,8 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
 	if (ret)
 		goto out;
 
-	if (!qobj->pin_count) {
+	if (!qobj->tbo.pin_count) {
-		qxl_ttm_placement_from_domain(qobj, qobj->type, false);
+		qxl_ttm_placement_from_domain(qobj, qobj->type);
 		ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx);
 		if (unlikely(ret))
 			goto out;

drivers/gpu/drm/qxl/qxl_object.c

@@ -51,14 +51,12 @@ bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
 	return false;
 }
 
-void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned)
+void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)
 {
 	u32 c = 0;
 	u32 pflag = 0;
 	unsigned int i;
 
-	if (pinned)
-		pflag |= TTM_PL_FLAG_NO_EVICT;
 	if (qbo->tbo.base.size <= PAGE_SIZE)
 		pflag |= TTM_PL_FLAG_TOPDOWN;
 
@@ -128,14 +126,13 @@ int qxl_bo_create(struct qxl_device *qdev,
 	}
 	bo->tbo.base.funcs = &qxl_object_funcs;
 	bo->type = domain;
-	bo->pin_count = pinned ? 1 : 0;
 	bo->surface_id = 0;
 	INIT_LIST_HEAD(&bo->list);
 
 	if (surf)
 		bo->surf = *surf;
 
-	qxl_ttm_placement_from_domain(bo, domain, pinned);
+	qxl_ttm_placement_from_domain(bo, domain);
 
 	r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
 			&bo->placement, 0, !kernel, size,
@@ -147,6 +144,8 @@ int qxl_bo_create(struct qxl_device *qdev,
 				size, domain);
 		return r;
 	}
+	if (pinned)
+		ttm_bo_pin(&bo->tbo);
 	*bo_ptr = bo;
 	return 0;
 }
@@ -248,39 +247,22 @@ static int __qxl_bo_pin(struct qxl_bo *bo)
 	struct drm_device *ddev = bo->tbo.base.dev;
 	int r;
 
-	if (bo->pin_count) {
+	if (bo->tbo.pin_count) {
-		bo->pin_count++;
+		ttm_bo_pin(&bo->tbo);
 		return 0;
 	}
-	qxl_ttm_placement_from_domain(bo, bo->type, true);
+	qxl_ttm_placement_from_domain(bo, bo->type);
 	r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
-	if (likely(r == 0)) {
+	if (likely(r == 0))
-		bo->pin_count = 1;
+		ttm_bo_pin(&bo->tbo);
-	}
 	if (unlikely(r != 0))
 		dev_err(ddev->dev, "%p pin failed\n", bo);
 	return r;
 }
 
-static int __qxl_bo_unpin(struct qxl_bo *bo)
+static void __qxl_bo_unpin(struct qxl_bo *bo)
 {
-	struct ttm_operation_ctx ctx = { false, false };
+	ttm_bo_unpin(&bo->tbo);
-	struct drm_device *ddev = bo->tbo.base.dev;
-	int r, i;
-
-	if (!bo->pin_count) {
-		dev_warn(ddev->dev, "%p unpin not necessary\n", bo);
-		return 0;
-	}
-	bo->pin_count--;
-	if (bo->pin_count)
-		return 0;
-	for (i = 0; i < bo->placement.num_placement; i++)
-		bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
-	r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
-	if (unlikely(r != 0))
-		dev_err(ddev->dev, "%p validate failed for unpin\n", bo);
-	return r;
 }
 
 /*
@@ -314,9 +296,9 @@ int qxl_bo_unpin(struct qxl_bo *bo)
 	if (r)
 		return r;
 
-	r = __qxl_bo_unpin(bo);
+	__qxl_bo_unpin(bo);
 	qxl_bo_unreserve(bo);
-	return r;
+	return 0;
 }
 
 void qxl_bo_force_delete(struct qxl_device *qdev)

drivers/gpu/drm/qxl/qxl_object.h

@@ -71,7 +71,7 @@ extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo);
 extern void qxl_bo_unref(struct qxl_bo **bo);
 extern int qxl_bo_pin(struct qxl_bo *bo);
 extern int qxl_bo_unpin(struct qxl_bo *bo);
-extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned);
+extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain);
 extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);
 
 #endif

drivers/gpu/drm/qxl/qxl_release.c

@@ -231,8 +231,8 @@ static int qxl_release_validate_bo(struct qxl_bo *bo)
 	struct ttm_operation_ctx ctx = { true, false };
 	int ret;
 
-	if (!bo->pin_count) {
+	if (!bo->tbo.pin_count) {
-		qxl_ttm_placement_from_domain(bo, bo->type, false);
+		qxl_ttm_placement_from_domain(bo, bo->type);
 		ret = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
 		if (ret)
 			return ret;

drivers/gpu/drm/qxl/qxl_ttm.c

@@ -67,7 +67,7 @@ static void qxl_evict_flags(struct ttm_buffer_object *bo,
 		return;
 	}
 	qbo = to_qxl_bo(bo);
-	qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU, false);
+	qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU);
 	*placement = qbo->placement;
 }