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Diffstat (limited to 'drivers/gpu/drm/msm/msm_fence.h')
-rw-r--r--drivers/gpu/drm/msm/msm_fence.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_fence.h b/drivers/gpu/drm/msm/msm_fence.h
new file mode 100644
index 000000000000..ceb5b3d314b4
--- /dev/null
+++ b/drivers/gpu/drm/msm/msm_fence.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2013-2016 Red Hat
+ * Author: Rob Clark <robdclark@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MSM_FENCE_H__
+#define __MSM_FENCE_H__
+
+#include "msm_drv.h"
+
+struct msm_fence_context {
+ struct drm_device *dev;
+ const char *name;
+ unsigned context;
+ /* last_fence == completed_fence --> no pending work */
+ uint32_t last_fence; /* last assigned fence */
+ uint32_t completed_fence; /* last completed fence */
+ wait_queue_head_t event;
+ spinlock_t spinlock;
+};
+
+struct msm_fence_context * msm_fence_context_alloc(struct drm_device *dev,
+ const char *name);
+void msm_fence_context_free(struct msm_fence_context *fctx);
+
+int msm_wait_fence(struct msm_fence_context *fctx, uint32_t fence,
+ ktime_t *timeout, bool interruptible);
+int msm_queue_fence_cb(struct msm_fence_context *fctx,
+ struct msm_fence_cb *cb, uint32_t fence);
+void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence);
+
+struct fence * msm_fence_alloc(struct msm_fence_context *fctx);
+
+#endif