diff options
Diffstat (limited to 'include/soc/qcom')
| -rw-r--r-- | include/soc/qcom/ocmem.h | 65 | ||||
| -rw-r--r-- | include/soc/qcom/tcs.h | 20 |
2 files changed, 84 insertions, 1 deletions
diff --git a/include/soc/qcom/ocmem.h b/include/soc/qcom/ocmem.h new file mode 100644 index 000000000000..02a8bc2677b1 --- /dev/null +++ b/include/soc/qcom/ocmem.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * The On Chip Memory (OCMEM) allocator allows various clients to allocate + * memory from OCMEM based on performance, latency and power requirements. + * This is typically used by the GPU, camera/video, and audio components on + * some Snapdragon SoCs. + * + * Copyright (C) 2019 Brian Masney <masneyb@onstation.org> + * Copyright (C) 2015 Red Hat. Author: Rob Clark <robdclark@gmail.com> + */ + +#include <linux/device.h> +#include <linux/err.h> + +#ifndef __OCMEM_H__ +#define __OCMEM_H__ + +enum ocmem_client { + /* GMEM clients */ + OCMEM_GRAPHICS = 0x0, + /* + * TODO add more once ocmem_allocate() is clever enough to + * deal with multiple clients. + */ + OCMEM_CLIENT_MAX, +}; + +struct ocmem; + +struct ocmem_buf { + unsigned long offset; + unsigned long addr; + unsigned long len; +}; + +#if IS_ENABLED(CONFIG_QCOM_OCMEM) + +struct ocmem *of_get_ocmem(struct device *dev); +struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem, enum ocmem_client client, + unsigned long size); +void ocmem_free(struct ocmem *ocmem, enum ocmem_client client, + struct ocmem_buf *buf); + +#else /* IS_ENABLED(CONFIG_QCOM_OCMEM) */ + +static inline struct ocmem *of_get_ocmem(struct device *dev) +{ + return ERR_PTR(-ENODEV); +} + +static inline struct ocmem_buf *ocmem_allocate(struct ocmem *ocmem, + enum ocmem_client client, + unsigned long size) +{ + return ERR_PTR(-ENODEV); +} + +static inline void ocmem_free(struct ocmem *ocmem, enum ocmem_client client, + struct ocmem_buf *buf) +{ +} + +#endif /* IS_ENABLED(CONFIG_QCOM_OCMEM) */ + +#endif /* __OCMEM_H__ */ diff --git a/include/soc/qcom/tcs.h b/include/soc/qcom/tcs.h index 262876a59e86..7a2a055ba6b0 100644 --- a/include/soc/qcom/tcs.h +++ b/include/soc/qcom/tcs.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* - * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved. */ #ifndef __SOC_QCOM_TCS_H__ @@ -53,4 +53,22 @@ struct tcs_request { struct tcs_cmd *cmds; }; +#define BCM_TCS_CMD_COMMIT_SHFT 30 +#define BCM_TCS_CMD_COMMIT_MASK 0x40000000 +#define BCM_TCS_CMD_VALID_SHFT 29 +#define BCM_TCS_CMD_VALID_MASK 0x20000000 +#define BCM_TCS_CMD_VOTE_X_SHFT 14 +#define BCM_TCS_CMD_VOTE_MASK 0x3fff +#define BCM_TCS_CMD_VOTE_Y_SHFT 0 +#define BCM_TCS_CMD_VOTE_Y_MASK 0xfffc000 + +/* Construct a Bus Clock Manager (BCM) specific TCS command */ +#define BCM_TCS_CMD(commit, valid, vote_x, vote_y) \ + (((commit) << BCM_TCS_CMD_COMMIT_SHFT) | \ + ((valid) << BCM_TCS_CMD_VALID_SHFT) | \ + ((cpu_to_le32(vote_x) & \ + BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_X_SHFT) | \ + ((cpu_to_le32(vote_y) & \ + BCM_TCS_CMD_VOTE_MASK) << BCM_TCS_CMD_VOTE_Y_SHFT)) + #endif /* __SOC_QCOM_TCS_H__ */ |
