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Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
65 lines
2.4 KiB
C
Vendored
65 lines
2.4 KiB
C
Vendored
/* $OpenBSD: loongson2.h,v 1.4 2013/01/16 20:28:06 miod Exp $ */
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/*
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* Copyright (c) 2009 Miodrag Vallat.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _MIPS64_LOONGSON2_H_
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#define _MIPS64_LOONGSON2_H_
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/*
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* Loongson 2E/2F specific defines
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*/
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/*
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* Address Window registers physical addresses
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*
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* The Loongson 2F processor has an AXI crossbar with four possible bus
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* masters, each one having four programmable address windows.
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*
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* Each window is defined with three 64-bit registers:
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* - a base address register, defining the address in the master address
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* space (base register).
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* - an address mask register, defining which address bits are valid in this
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* window. A given address matches a window if (addr & mask) == base.
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* - the location of the window base in the target, as well at the target
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* number itself (mmap register). The lower 20 bits of the address are
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* forced as zeroes regardless of their value in this register.
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* The translated address is thus (addr & ~mask) | (mmap & ~0xfffff).
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*/
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#define LOONGSON_AWR_BASE_ADDRESS 0x3ff00000
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#define LOONGSON_AWR_BASE(master, window) \
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(LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x00)
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#define LOONGSON_AWR_SIZE(master, window) \
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(LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x20)
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#define LOONGSON_AWR_MMAP(master, window) \
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(LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x40)
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/*
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* Bits in the diagnostic register
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*/
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#define COP_0_DIAG_ITLB_CLEAR 0x04
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#define COP_0_DIAG_BTB_CLEAR 0x02
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#define COP_0_DIAG_RAS_DISABLE 0x01
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#if defined(_KERNEL) && !defined(_LOCORE)
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int loongson2f_cpuspeed(int *);
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void loongson2f_setperf(int);
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#endif
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#endif /* _MIPS64_LOONGSON2_H_ */ |