2d4b0d45b0
Add fast-path interface for making a lock-less RPMH request. The
interface provides APIs that can be called from a interrupt/scheduler
context. The _init_ call shall be used to initialize the dedicated TCS
with {addr, data} and subsequent calls shall _update_ the data and
trigger the request immediately.
Only active state requests shall be sent through these interfaces.
Requests to remove the vote during sleep and re-apply the vote during
wake must use the regular rpmh_write/_async variants APIs (locking).
Change-Id: I2505fc487ddca1a32185b116c0d8680818dfd2b8
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#ifndef __SOC_QCOM_RPMH_H__
|
|
#define __SOC_QCOM_RPMH_H__
|
|
|
|
#include <soc/qcom/tcs.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
|
|
#if IS_ENABLED(CONFIG_QCOM_RPMH)
|
|
int rpmh_write(const struct device *dev, enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 n);
|
|
|
|
int rpmh_write_async(const struct device *dev, enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 n);
|
|
|
|
int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 *n);
|
|
|
|
int rpmh_mode_solver_set(const struct device *dev, bool enable);
|
|
|
|
int rpmh_write_sleep_and_wake(const struct device *dev);
|
|
|
|
void rpmh_invalidate(const struct device *dev);
|
|
|
|
int rpmh_init_fast_path(const struct device *dev,
|
|
struct tcs_cmd *cmd, int n);
|
|
|
|
int rpmh_update_fast_path(const struct device *dev,
|
|
struct tcs_cmd *cmd, int n, u32 update_mask);
|
|
#else
|
|
|
|
static inline int rpmh_write(const struct device *dev, enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 n)
|
|
{ return -ENODEV; }
|
|
|
|
static inline int rpmh_write_async(const struct device *dev,
|
|
enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 n)
|
|
{ return -ENODEV; }
|
|
|
|
static inline int rpmh_write_batch(const struct device *dev,
|
|
enum rpmh_state state,
|
|
const struct tcs_cmd *cmd, u32 *n)
|
|
{ return -ENODEV; }
|
|
|
|
static int rpmh_mode_solver_set(const struct device *dev, bool enable)
|
|
{ return -ENODEV; }
|
|
|
|
static int rpmh_write_sleep_and_wake(const struct device *dev)
|
|
{ return -ENODEV; }
|
|
|
|
static inline void rpmh_invalidate(const struct device *dev)
|
|
{
|
|
}
|
|
|
|
static inline int rpmh_init_fast_path(const struct device *dev,
|
|
struct tcs_cmd *msg, int n)
|
|
{ return -ENODEV; }
|
|
|
|
static inline int rpmh_update_fast_path(const struct device *dev,
|
|
struct tcs_cmd *msg, int n,
|
|
u32 update_mask)
|
|
{ return -ENODEV; }
|
|
|
|
#endif /* CONFIG_QCOM_RPMH */
|
|
|
|
#endif /* __SOC_QCOM_RPMH_H__ */
|