515.43.04

kernel-open/nvidia-drm/nvidia-dma-resv-helper.h

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __NVIDIA_DMA_RESV_HELPER_H__
+#define __NVIDIA_DMA_RESV_HELPER_H__
+
+#include "nvidia-drm-conftest.h"
+
+#if defined(NV_DRM_FENCE_AVAILABLE)
+
+/*
+ * linux/reservation.h is renamed to linux/dma-resv.h, by commit
+ * 52791eeec1d9 (dma-buf: rename reservation_object to dma_resv)
+ * in v5.4.
+ */
+
+#if defined(NV_LINUX_DMA_RESV_H_PRESENT)
+#include <linux/dma-resv.h>
+#else
+#include <linux/reservation.h>
+#endif
+
+#include <nvidia-dma-fence-helper.h>
+
+#if defined(NV_LINUX_DMA_RESV_H_PRESENT)
+typedef struct dma_resv nv_dma_resv_t;
+#else
+typedef struct reservation_object nv_dma_resv_t;
+#endif
+
+static inline void nv_dma_resv_init(nv_dma_resv_t *obj)
+{
+#if defined(NV_LINUX_DMA_RESV_H_PRESENT)
+    dma_resv_init(obj);
+#else
+    reservation_object_init(obj);
+#endif
+}
+
+static inline void nv_dma_resv_fini(nv_dma_resv_t *obj)
+{
+#if defined(NV_LINUX_DMA_RESV_H_PRESENT)
+    dma_resv_fini(obj);
+#else
+    reservation_object_init(obj);
+#endif
+}
+
+static inline void nv_dma_resv_add_excl_fence(nv_dma_resv_t *obj,
+                                              nv_dma_fence_t *fence)
+{
+#if defined(NV_LINUX_DMA_RESV_H_PRESENT)
+    dma_resv_add_excl_fence(obj, fence);
+#else
+    reservation_object_add_excl_fence(obj, fence);
+#endif
+}
+
+#endif /* defined(NV_DRM_FENCE_AVAILABLE) */
+
+#endif /* __NVIDIA_DMA_RESV_HELPER_H__ */