1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * The On Chip Memory (OCMEM) allocator allows various clients to allocate
4 * memory from OCMEM based on performance, latency and power requirements.
5 * This is typically used by the GPU, camera/video, and audio components on
6 * some Snapdragon SoCs.
12 #include <linux/device.h>
13 #include <linux/err.h>
22 * TODO add more once ocmem_allocate() is clever enough to
23 * deal with multiple clients.
36 #if IS_ENABLED(CONFIG_QCOM_OCMEM)
38 struct ocmem *of_get_ocmem(struct device *dev);
39 struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem, enum ocmem_client client,
41 void ocmem_free(struct ocmem *ocmem, enum ocmem_client client,
42 struct ocmem_buf *buf);
44 #else /* IS_ENABLED(CONFIG_QCOM_OCMEM) */
46 static inline struct ocmem *of_get_ocmem(struct device *dev)
48 return ERR_PTR(-ENODEV);
51 static inline struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem,
52 enum ocmem_client client,
55 return ERR_PTR(-ENODEV);
58 static inline void ocmem_free(struct ocmem *ocmem, enum ocmem_client client,
59 struct ocmem_buf *buf)
63 #endif /* IS_ENABLED(CONFIG_QCOM_OCMEM) */
65 #endif /* __OCMEM_H__ */