71e3c3083b
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.
217 lines
5.9 KiB
C
217 lines
5.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011-2012 Semihalf.
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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 AND CONTRIBUTORS ``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 PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <machine/machdep.h>
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#include <powerpc/booke/dcr.h>
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#include <powerpc/apm86xxx/apm86xxx.h>
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#include <dev/fdt/fdt_common.h>
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#define OCP_ADDR_WORDLO(addr) ((uint32_t)((uint64_t)(addr) & 0xFFFFFFFF))
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#define OCP_ADDR_WORDHI(addr) ((uint32_t)((uint64_t)(addr) >> 32))
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extern void tlb_write(u_int, uint32_t, uint32_t, uint32_t, tlbtid_t, uint32_t,
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uint32_t);
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extern void tlb_read(u_int, uint32_t *, uint32_t *, uint32_t *, uint32_t *,
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uint32_t *, uint32_t *);
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unsigned int tlb_static_entries;
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unsigned int tlb_current_entry = TLB_SIZE;
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unsigned int tlb_misses = 0;
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unsigned int tlb_invals = 0;
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void tlb_map(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
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void tlb_map_mem(uint32_t, uint32_t, uint32_t);
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void tlb_dump(void);
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void
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booke_init_tlb(vm_paddr_t fdt_immr_pa)
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{
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/* Map register space */
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tlb_map(APM86XXX_DEEP_SLEEP_VA,
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OCP_ADDR_WORDLO(APM86XXX_DEEP_SLEEP_PA),
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OCP_ADDR_WORDHI(APM86XXX_DEEP_SLEEP_PA), TLB_VALID | TLB_SIZE_16M,
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TLB_SW | TLB_SR | TLB_I | TLB_G);
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tlb_map(APM86XXX_CSR_VA, OCP_ADDR_WORDLO(APM86XXX_CSR_PA),
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OCP_ADDR_WORDHI(APM86XXX_CSR_PA), TLB_VALID | TLB_SIZE_16M,
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TLB_SW | TLB_SR | TLB_I | TLB_G);
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tlb_map(APM86XXX_PRIMARY_FABRIC_VA,
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OCP_ADDR_WORDLO(APM86XXX_PRIMARY_FABRIC_PA),
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OCP_ADDR_WORDHI(APM86XXX_PRIMARY_FABRIC_PA),
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TLB_VALID | TLB_SIZE_16M,
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TLB_SW | TLB_SR | TLB_I | TLB_G);
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tlb_map(APM86XXX_AHB_VA, OCP_ADDR_WORDLO(APM86XXX_AHB_PA),
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OCP_ADDR_WORDHI(APM86XXX_AHB_PA),
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TLB_VALID | TLB_SIZE_16M,
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TLB_SW | TLB_SR | TLB_I | TLB_G);
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/* Map MailBox space */
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tlb_map(APM86XXX_MBOX_VA, OCP_ADDR_WORDLO(APM86XXX_MBOX_PA),
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OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
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TLB_VALID | TLB_SIZE_4K,
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TLB_UX | TLB_UW | TLB_UR |
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TLB_SX | TLB_SW | TLB_SR |
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TLB_I | TLB_G);
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tlb_map(APM86XXX_MBOX_VA + 0x1000,
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OCP_ADDR_WORDLO(APM86XXX_MBOX_PA) + 0x1000,
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OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
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TLB_VALID | TLB_SIZE_4K,
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TLB_UX | TLB_UW | TLB_UR |
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TLB_SX | TLB_SW | TLB_SR |
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TLB_I | TLB_G);
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tlb_map(APM86XXX_MBOX_VA + 0x2000,
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OCP_ADDR_WORDLO(APM86XXX_MBOX_PA)+ 0x2000,
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OCP_ADDR_WORDHI(APM86XXX_MBOX_PA),
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TLB_VALID | TLB_SIZE_4K,
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TLB_UX | TLB_UW | TLB_UR |
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TLB_SX | TLB_SW | TLB_SR |
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TLB_I | TLB_G);
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}
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void
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booke_enable_l1_cache(void)
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{
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}
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void
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booke_enable_l2_cache(void)
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{
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}
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void
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booke_disable_l2_cache(void)
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{
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uint32_t ccr1,l2cr0;
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/* Disable L2 cache op broadcast */
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ccr1 = mfspr(SPR_CCR1);
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ccr1 &= ~CCR1_L2COBE;
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mtspr(SPR_CCR1, ccr1);
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/* Set L2 array size to 0 i.e. disable L2 cache */
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mtdcr(DCR_L2DCDCRAI, DCR_L2CR0);
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l2cr0 = mfdcr(DCR_L2DCDCRDI);
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l2cr0 &= ~L2CR0_AS;
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mtdcr(DCR_L2DCDCRDI, l2cr0);
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}
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void tlb_map(uint32_t epn, uint32_t rpn, uint32_t erpn, uint32_t flags,
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uint32_t perms)
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{
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tlb_write(++tlb_static_entries, epn, rpn, erpn, 0, flags, perms);
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}
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static void tlb_dump_entry(u_int entry)
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{
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uint32_t epn, rpn, erpn, tid, flags, perms;
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const char *size;
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tlb_read(entry, &epn, &rpn, &erpn, &tid, &flags, &perms);
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switch (flags & TLB_SIZE_MASK) {
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case TLB_SIZE_1K:
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size = " 1k";
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break;
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case TLB_SIZE_4K:
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size = " 4k";
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break;
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case TLB_SIZE_16K:
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size = " 16k";
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break;
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case TLB_SIZE_256K:
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size = "256k";
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break;
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case TLB_SIZE_1M:
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size = " 1M";
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break;
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case TLB_SIZE_16M:
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size = " 16M";
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break;
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case TLB_SIZE_256M:
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size = "256M";
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break;
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case TLB_SIZE_1G:
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size = " 1G";
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break;
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default:
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size = "????";
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break;
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}
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printf("TLB[%02u]: 0x%08X => "
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"0x%01X_%08X %s %c %c %s %s %s %s %s "
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"%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c (%u)\n",
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entry, epn, erpn, rpn, size,
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(flags & TLB_TS) ? '1' : '0',
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(flags & TLB_VALID) ? 'V' : '.',
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(perms & TLB_WL1) ? "WL1" : "___",
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(perms & TLB_IL1I) ? "IL1I" : "____",
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(perms & TLB_IL1D) ? "IL1D" : "____",
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(perms & TLB_IL2I) ? "IL2I" : "____",
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(perms & TLB_IL2D) ? "IL2D" : "____",
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(perms & TLB_U0) ? '1' : '.',
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(perms & TLB_U1) ? '2' : '.',
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(perms & TLB_U2) ? '3' : '.',
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(perms & TLB_U3) ? '4' : '.',
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(perms & TLB_W) ? 'W' : '.',
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(perms & TLB_I) ? 'I' : '.',
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(perms & TLB_M) ? 'M' : '.',
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(perms & TLB_G) ? 'G' : '.',
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(perms & TLB_E) ? 'E' : '.',
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(perms & TLB_UX) ? 'x' : '.',
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(perms & TLB_UW) ? 'w' : '.',
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(perms & TLB_UR) ? 'r' : '.',
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(perms & TLB_SX) ? 'X' : '.',
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(perms & TLB_SW) ? 'W' : '.',
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(perms & TLB_SR) ? 'R' : '.',
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tid);
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}
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void tlb_dump(void)
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{
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int i;
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for (i = 0; i < TLB_SIZE; i++)
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tlb_dump_entry(i);
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}
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