diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/memory.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/memory.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/core/memory.c b/drivers/gpu/drm/nouveau/nvkm/core/memory.c new file mode 100644 index 000000000..8903c04c9 --- /dev/null +++ b/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; +} |