6f8905baf6
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2009 Nathan Whitehorn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_SLB_H_
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#define _MACHINE_SLB_H_
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/*
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* Bit definitions for segment lookaside buffer entries.
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*
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* PowerPC Microprocessor Family: The Programming Environments for 64-bit
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* Microprocessors, section 7.4.2.1
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*
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* Note that these bitmasks are relative to the values for one of the two
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* values for slbmte, slbmfee, and slbmfev, not the internal SLB
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* representation.
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*/
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#define SLBV_KS 0x0000000000000800UL /* Supervisor-state prot key */
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#define SLBV_KP 0x0000000000000400UL /* User-state prot key */
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#define SLBV_N 0x0000000000000200UL /* No-execute protection */
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#define SLBV_L 0x0000000000000100UL /* Large page selector */
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#define SLBV_CLASS 0x0000000000000080UL /* Class selector */
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#define SLBV_VSID_MASK 0xfffffffffffff000UL /* Virtual segment ID mask */
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#define SLBV_VSID_SHIFT 12
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/*
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* Make a predictable 1:1 map from ESIDs to VSIDs for the kernel. Hash table
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* coverage is increased by swizzling the ESID and multiplying by a prime
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* number (0x13bb).
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*/
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#define KERNEL_VSID_BIT 0x0000001000000000UL /* Bit set in all kernel VSIDs */
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#define KERNEL_VSID(esid) ((((((uint64_t)esid << 8) | ((uint64_t)esid >> 28)) \
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* 0x13bbUL) & (KERNEL_VSID_BIT - 1)) | \
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KERNEL_VSID_BIT)
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#define SLBE_VALID 0x0000000008000000UL /* SLB entry valid */
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#define SLBE_INDEX_MASK 0x0000000000000fffUL /* SLB index mask*/
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#define SLBE_ESID_MASK 0xfffffffff0000000UL /* Effective segment ID mask */
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#define SLBE_ESID_SHIFT 28
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/* Virtual real-mode VSID in LPARs */
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#define VSID_VRMA 0x1ffffff
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/*
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* User segment for copyin/out
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*/
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#define USER_SLB_SLOT 0
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#define USER_SLB_SLBE (((USER_ADDR >> ADDR_SR_SHFT) << SLBE_ESID_SHIFT) | \
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SLBE_VALID | USER_SLB_SLOT)
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struct slb {
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uint64_t slbv;
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uint64_t slbe;
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};
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#endif /* !_MACHINE_SLB_H_ */
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