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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/soc/tegra/flowctrl.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * Functions and macros to control the flowcontroller

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 *

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 * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved.

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 */

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#ifndef __SOC_TEGRA_FLOWCTRL_H__

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#define __SOC_TEGRA_FLOWCTRL_H__

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#define FLOW_CTRL_HALT_CPU0_EVENTS	0x0

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#define FLOW_CTRL_WAITEVENT		(2 << 29)

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#define FLOW_CTRL_WAIT_FOR_INTERRUPT	(4 << 29)

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#define FLOW_CTRL_JTAG_RESUME		(1 << 28)

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#define FLOW_CTRL_SCLK_RESUME		(1 << 27)

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#define FLOW_CTRL_HALT_CPU_IRQ		(1 << 10)

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#define	FLOW_CTRL_HALT_CPU_FIQ		(1 << 8)

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#define FLOW_CTRL_HALT_LIC_IRQ		(1 << 11)

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#define FLOW_CTRL_HALT_LIC_FIQ		(1 << 10)

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#define FLOW_CTRL_HALT_GIC_IRQ		(1 << 9)

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#define FLOW_CTRL_HALT_GIC_FIQ		(1 << 8)

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#define FLOW_CTRL_CPU0_CSR		0x8

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#define	FLOW_CTRL_CSR_INTR_FLAG		(1 << 15)

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#define FLOW_CTRL_CSR_EVENT_FLAG	(1 << 14)

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#define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL	(1 << 13)

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#define FLOW_CTRL_CSR_ENABLE_EXT_NCPU	(1 << 12)

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#define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \

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		FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \

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		FLOW_CTRL_CSR_ENABLE_EXT_CRAIL)

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#define FLOW_CTRL_CSR_ENABLE		(1 << 0)

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#define FLOW_CTRL_HALT_CPU1_EVENTS	0x14

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#define FLOW_CTRL_CPU1_CSR		0x18

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#define TEGRA20_FLOW_CTRL_CSR_WFE_CPU0		(1 << 4)

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#define TEGRA20_FLOW_CTRL_CSR_WFE_BITMAP	(3 << 4)

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#define TEGRA20_FLOW_CTRL_CSR_WFI_BITMAP	0

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#define TEGRA30_FLOW_CTRL_CSR_WFI_CPU0		(1 << 8)

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#define TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP	(0xF << 4)

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#define TEGRA30_FLOW_CTRL_CSR_WFI_BITMAP	(0xF << 8)

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#ifndef __ASSEMBLY__

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#ifdef CONFIG_SOC_TEGRA_FLOWCTRL

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u32 flowctrl_read_cpu_csr(unsigned int cpuid);

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void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value);

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void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value);

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void flowctrl_cpu_suspend_enter(unsigned int cpuid);

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void flowctrl_cpu_suspend_exit(unsigned int cpuid);

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#else

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static inline u32 flowctrl_read_cpu_csr(unsigned int cpuid)

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{

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	return 0;

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}

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static inline void flowctrl_write_cpu_csr(unsigned int cpuid, u32 value)

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{

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}

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static inline void flowctrl_write_cpu_halt(unsigned int cpuid, u32 value) {}

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static inline void flowctrl_cpu_suspend_enter(unsigned int cpuid)

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{

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}

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static inline void flowctrl_cpu_suspend_exit(unsigned int cpuid)

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{

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}

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#endif /* CONFIG_SOC_TEGRA_FLOWCTRL */

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#endif /* __ASSEMBLY */

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#endif /* __SOC_TEGRA_FLOWCTRL_H__ */

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