1 files changed, 84 insertions, 0 deletions
diff --git a/msm8909/gralloc/gr_ion_alloc.h b/msm8909/gralloc/gr_ion_alloc.h
new file mode 100644
index 00000000..b25f509b
--- /dev/null
+++ b/msm8909/gralloc/gr_ion_alloc.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *   * Neither the name of The Linux Foundation nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __GR_ION_ALLOC_H__
+#define __GR_ION_ALLOC_H__
+
+#include <linux/msm_ion.h>
+
+#define FD_INIT -1
+
+namespace gralloc1 {
+
+enum {
+  CACHE_CLEAN = 0x1,
+  CACHE_INVALIDATE,
+  CACHE_CLEAN_AND_INVALIDATE,
+};
+
+struct AllocData {
+  void *base = NULL;
+  int fd = -1;
+  int ion_handle = -1;
+  unsigned int offset = 0;
+  unsigned int size = 0;
+  unsigned int align = 1;
+  uintptr_t handle = 0;
+  bool uncached = false;
+  unsigned int flags = 0x0;
+  unsigned int heap_id = 0x0;
+  unsigned int alloc_type = 0x0;
+};
+
+class IonAlloc {
+ public:
+  IonAlloc() { ion_dev_fd_ = FD_INIT; }
+
+  ~IonAlloc() { CloseIonDevice(); }
+
+  bool Init();
+  int AllocBuffer(AllocData *data);
+  int FreeBuffer(void *base, unsigned int size, unsigned int offset, int fd, int ion_handle);
+  int MapBuffer(void **base, unsigned int size, unsigned int offset, int fd);
+  int ImportBuffer(int fd);
+  int UnmapBuffer(void *base, unsigned int size, unsigned int offset);
+  int CleanBuffer(void *base, unsigned int size, unsigned int offset, int handle, int op);
+
+ private:
+  const char *kIonDevice = "/dev/ion";
+
+  int OpenIonDevice();
+  void CloseIonDevice();
+
+  int ion_dev_fd_;
+};
+
+}  // namespace gralloc1
+
+#endif  // __GR_ION_ALLOC_H__