These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / core / memory.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/core/memory.c b/kernel/drivers/gpu/drm/nouveau/nvkm/core/memory.c
new file mode 100644 (file)
index 0000000..8903c04
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/core/memory.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/memory.h>
+#include <subdev/instmem.h>
+
+void
+nvkm_memory_ctor(const struct nvkm_memory_func *func,
+                struct nvkm_memory *memory)
+{
+       memory->func = func;
+}
+
+void
+nvkm_memory_del(struct nvkm_memory **pmemory)
+{
+       struct nvkm_memory *memory = *pmemory;
+       if (memory && !WARN_ON(!memory->func)) {
+               if (memory->func->dtor)
+                       *pmemory = memory->func->dtor(memory);
+               kfree(*pmemory);
+               *pmemory = NULL;
+       }
+}
+
+int
+nvkm_memory_new(struct nvkm_device *device, enum nvkm_memory_target target,
+               u64 size, u32 align, bool zero,
+               struct nvkm_memory **pmemory)
+{
+       struct nvkm_instmem *imem = device->imem;
+       struct nvkm_memory *memory;
+       int ret = -ENOSYS;
+
+       if (unlikely(target != NVKM_MEM_TARGET_INST || !imem))
+               return -ENOSYS;
+
+       ret = nvkm_instobj_new(imem, size, align, zero, &memory);
+       if (ret)
+               return ret;
+
+       *pmemory = memory;
+       return 0;
+}