1 files changed, 108 insertions, 0 deletions
diff --git a/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_sync.h b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_sync.h
new file mode 100755
index 0000000..07e5158
--- /dev/null
+++ b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_sync.h
@@ -0,0 +1,108 @@
+/*
+ *
+ * (C) COPYRIGHT 2012-2016 ARM Limited. All rights reserved.
+ *
+ * This program is free software and is provided to you under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation, and any use by you of this program is subject to the terms
+ * of such GNU licence.
+ *
+ * A copy of the licence is included with the program, and can also be obtained
+ * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ */
+
+
+
+
+
+/**
+ * @file mali_kbase_sync.h
+ *
+ */
+
+#ifndef MALI_KBASE_SYNC_H
+#define MALI_KBASE_SYNC_H
+
+#include "sync.h"
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
+/* For backwards compatiblility with kernels before 3.17. After 3.17
+ * sync_pt_parent is included in the kernel. */
+static inline struct sync_timeline *sync_pt_parent(struct sync_pt *pt)
+{
+	return pt->parent;
+}
+#endif
+
+static inline int kbase_fence_get_status(struct sync_fence *fence)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 17, 0)
+	return fence->status;
+#else
+	return atomic_read(&fence->status);
+#endif
+}
+
+/*
+ * Create a stream object.
+ * Built on top of timeline object.
+ * Exposed as a file descriptor.
+ * Life-time controlled via the file descriptor:
+ * - dup to add a ref
+ * - close to remove a ref
+ */
+int kbase_stream_create(const char *name, int *const out_fd);
+
+/*
+ * Create a fence in a stream object
+ */
+int kbase_stream_create_fence(int tl_fd);
+
+/*
+ * Validate a fd to be a valid fence
+ * No reference is taken.
+ *
+ * This function is only usable to catch unintentional user errors early,
+ * it does not stop malicious code changing the fd after this function returns.
+ */
+int kbase_fence_validate(int fd);
+
+/* Returns true if the specified timeline is allocated by Mali */
+int kbase_sync_timeline_is_ours(struct sync_timeline *timeline);
+
+/* Allocates a timeline for Mali
+ *
+ * One timeline should be allocated per API context.
+ */
+struct sync_timeline *kbase_sync_timeline_alloc(const char *name);
+
+/* Allocates a sync point within the timeline.
+ *
+ * The timeline must be the one allocated by kbase_sync_timeline_alloc
+ *
+ * Sync points must be triggered in *exactly* the same order as they are allocated.
+ */
+struct sync_pt *kbase_sync_pt_alloc(struct sync_timeline *parent);
+
+/* Signals a particular sync point
+ *
+ * Sync points must be triggered in *exactly* the same order as they are allocated.
+ *
+ * If they are signalled in the wrong order then a message will be printed in debug
+ * builds and otherwise attempts to signal order sync_pts will be ignored.
+ *
+ * result can be negative to indicate error, any other value is interpreted as success.
+ */
+void kbase_sync_signal_pt(struct sync_pt *pt, int result);
+
+/**
+ * kbase_sync_status_string() - Get string matching @status
+ * @status: Value of fence status.
+ *
+ * Return: Pointer to string describing @status.
+ */
+const char *kbase_sync_status_string(int status);
+
+#endif