112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/*
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* Copyright (C) 2017 Imagination Technologies
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* Author: Paul Burton <paul.burton@imgtec.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __MIPS_ASM_MIPS_CPS_H__
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#define __MIPS_ASM_MIPS_CPS_H__
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#include <linux/io.h>
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#include <linux/types.h>
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extern unsigned long __cps_access_bad_size(void)
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__compiletime_error("Bad size for CPS accessor");
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#define CPS_ACCESSOR_A(unit, off, name) \
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static inline void *addr_##unit##_##name(void) \
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{ \
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return mips_##unit##_base + (off); \
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}
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#define CPS_ACCESSOR_R(unit, sz, name) \
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static inline uint##sz##_t read_##unit##_##name(void) \
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{ \
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uint64_t val64; \
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\
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switch (sz) { \
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case 32: \
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return __raw_readl(addr_##unit##_##name()); \
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\
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case 64: \
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if (mips_cm_is64) \
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return __raw_readq(addr_##unit##_##name()); \
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\
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val64 = __raw_readl(addr_##unit##_##name() + 4); \
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val64 <<= 32; \
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val64 |= __raw_readl(addr_##unit##_##name()); \
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return val64; \
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\
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default: \
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return __cps_access_bad_size(); \
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} \
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}
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#define CPS_ACCESSOR_W(unit, sz, name) \
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static inline void write_##unit##_##name(uint##sz##_t val) \
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{ \
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switch (sz) { \
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case 32: \
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__raw_writel(val, addr_##unit##_##name()); \
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break; \
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\
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case 64: \
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if (mips_cm_is64) { \
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__raw_writeq(val, addr_##unit##_##name()); \
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break; \
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} \
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\
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__raw_writel((uint64_t)val >> 32, \
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addr_##unit##_##name() + 4); \
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__raw_writel(val, addr_##unit##_##name()); \
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break; \
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\
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default: \
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__cps_access_bad_size(); \
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break; \
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} \
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}
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#define CPS_ACCESSOR_M(unit, sz, name) \
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static inline void change_##unit##_##name(uint##sz##_t mask, \
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uint##sz##_t val) \
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{ \
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uint##sz##_t reg_val = read_##unit##_##name(); \
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reg_val &= ~mask; \
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reg_val |= val; \
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write_##unit##_##name(reg_val); \
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} \
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\
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static inline void set_##unit##_##name(uint##sz##_t val) \
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{ \
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change_##unit##_##name(val, val); \
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} \
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\
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static inline void clear_##unit##_##name(uint##sz##_t val) \
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{ \
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change_##unit##_##name(val, 0); \
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}
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#define CPS_ACCESSOR_RO(unit, sz, off, name) \
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CPS_ACCESSOR_A(unit, off, name) \
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CPS_ACCESSOR_R(unit, sz, name)
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#define CPS_ACCESSOR_WO(unit, sz, off, name) \
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CPS_ACCESSOR_A(unit, off, name) \
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CPS_ACCESSOR_W(unit, sz, name)
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#define CPS_ACCESSOR_RW(unit, sz, off, name) \
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CPS_ACCESSOR_A(unit, off, name) \
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CPS_ACCESSOR_R(unit, sz, name) \
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CPS_ACCESSOR_W(unit, sz, name) \
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CPS_ACCESSOR_M(unit, sz, name)
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#include <asm/mips-cm.h>
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#include <asm/mips-cpc.h>
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#endif /* __MIPS_ASM_MIPS_CPS_H__ */
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