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19d3b47b92
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.
168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
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* 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 are
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* met:
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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* NETLOGIC_BSD
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* $FreeBSD$
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*/
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#ifndef __XLP_MMU_H__
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#define __XLP_MMU_H__
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#include <mips/nlm/hal/mips-extns.h>
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static __inline__ uint32_t
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nlm_read_c0_config6(void)
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{
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uint32_t rv;
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__asm__ __volatile__ (
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".set push\n"
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".set mips64\n"
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"mfc0 %0, $16, 6\n"
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".set pop\n"
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: "=r" (rv));
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return rv;
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}
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static __inline__ void
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nlm_write_c0_config6(uint32_t value)
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{
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__asm__ __volatile__ (
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".set push\n"
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".set mips64\n"
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"mtc0 %0, $16, 6\n"
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".set pop\n"
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: : "r" (value));
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}
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static __inline__ uint32_t
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nlm_read_c0_config7(void)
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{
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uint32_t rv;
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__asm__ __volatile__ (
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".set push\n"
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".set mips64\n"
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"mfc0 %0, $16, 7\n"
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".set pop\n"
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: "=r" (rv));
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return rv;
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}
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static __inline__ void
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nlm_write_c0_config7(uint32_t value)
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{
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__asm__ __volatile__ (
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".set push\n"
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".set mips64\n"
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"mtc0 %0, $16, 7\n"
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".set pop\n"
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: : "r" (value));
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}
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/**
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* On power on reset, XLP comes up with 64 TLBs.
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* Large-variable-tlb's (ELVT) and extended TLB is disabled.
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* Enabling large-variable-tlb's sets up the standard
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* TLB size from 64 to 128 TLBs.
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* Enabling fixed TLB (EFT) sets up an additional 2048 tlbs.
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* ELVT + EFT = 128 + 2048 = 2176 TLB entries.
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* threads 64-entry-standard-tlb 128-entry-standard-tlb
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* per std-tlb-only| std+EFT | std-tlb-only| std+EFT
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* core | | |
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* --------------------------------------------------------
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* 1 64 64+2048 128 128+2048
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* 2 64 64+1024 64 64+1024
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* 4 32 32+512 32 32+512
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*
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* 1(G) 64 64+2048 128 128+2048
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* 2(G) 128 128+2048 128 128+2048
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* 4(G) 128 128+2048 128 128+2048
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* (G) = Global mode
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*/
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/* en = 1 to enable
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* en = 0 to disable
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*/
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static __inline__ void nlm_large_variable_tlb_en (int en)
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{
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unsigned int val;
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val = nlm_read_c0_config6();
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val |= (en << 5);
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nlm_write_c0_config6(val);
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return;
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}
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/* en = 1 to enable
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* en = 0 to disable
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*/
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static __inline__ void nlm_pagewalker_en(int en)
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{
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unsigned int val;
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val = nlm_read_c0_config6();
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val |= (en << 3);
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nlm_write_c0_config6(val);
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return;
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}
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/* en = 1 to enable
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* en = 0 to disable
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*/
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static __inline__ void nlm_extended_tlb_en(int en)
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{
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unsigned int val;
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val = nlm_read_c0_config6();
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val |= (en << 2);
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nlm_write_c0_config6(val);
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return;
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}
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static __inline__ int nlm_get_num_combined_tlbs(void)
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{
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return (((nlm_read_c0_config6() >> 16) & 0xffff) + 1);
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}
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/* get number of variable TLB entries */
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static __inline__ int nlm_get_num_vtlbs(void)
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{
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return (((nlm_read_c0_config6() >> 6) & 0x3ff) + 1);
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}
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static __inline__ void nlm_setup_extended_pagemask(int mask)
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{
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nlm_write_c0_config7(mask);
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}
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#endif
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