From 2977d5a89aa8d6e767267706e5b4e192262082c4 Mon Sep 17 00:00:00 2001 From: shige Date: Tue, 23 Sep 2003 15:14:02 +0000 Subject: [PATCH] Add IBM40x specific machdep functions. --- sys/arch/powerpc/ibm4xx/ibm40x_machdep.c | 507 +++++++++++++++++++++++ sys/arch/powerpc/include/ibm4xx/cpu.h | 8 +- 2 files changed, 514 insertions(+), 1 deletion(-) create mode 100644 sys/arch/powerpc/ibm4xx/ibm40x_machdep.c diff --git a/sys/arch/powerpc/ibm4xx/ibm40x_machdep.c b/sys/arch/powerpc/ibm4xx/ibm40x_machdep.c new file mode 100644 index 000000000000..185f859dd2ce --- /dev/null +++ b/sys/arch/powerpc/ibm4xx/ibm40x_machdep.c @@ -0,0 +1,507 @@ +/* $NetBSD: ibm40x_machdep.c,v 1.1 2003/09/23 15:14:02 shige Exp $ */ + +/* + * Copyright 2001, 2002 Wasabi Systems, Inc. + * All rights reserved. + * + * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed for the NetBSD Project by + * Wasabi Systems, Inc. + * 4. The name of Wasabi Systems, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (C) 1995, 1996 Wolfgang Solfrank. + * Copyright (C) 1995, 1996 TooLs GmbH. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by TooLs GmbH. + * 4. The name of TooLs GmbH may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +__KERNEL_RCSID(0, "$NetBSD: ibm40x_machdep.c,v 1.1 2003/09/23 15:14:02 shige Exp $"); + +#include "opt_compat_netbsd.h" +#include "opt_ddb.h" +#include "opt_kgdb.h" +#include "opt_ipkdb.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#if defined(DDB) +#include +#include +#endif + +#if defined(KGDB) +#include +#endif + +#if defined(IPKDB) +#include +#endif + +#include +#include +#include +#include +#include + +/* + * Global variables used here and there + */ +struct vm_map *exec_map = NULL; +struct vm_map *mb_map = NULL; +struct vm_map *phys_map = NULL; + +char machine[] = MACHINE; /* from */ +char machine_arch[] = MACHINE_ARCH; /* from */ + +#define MEMREGIONS 8 +struct mem_region physmemr[MEMREGIONS]; /* Hard code memory */ +struct mem_region availmemr[MEMREGIONS];/* Who's supposed to set these up? */ + +struct board_cfg_data board_data; +struct propdb *board_info = NULL; + +extern struct user *proc0paddr; + +paddr_t msgbuf_paddr; +vaddr_t msgbuf_vaddr; + + +void +ibm4xx_init_board_data(void *info_block, u_int startkernel) +{ + /* Initialize cache info for memcpy, etc. */ + cpu_probe_cache(); + + /* Save info block */ + memcpy(&board_data, info_block, sizeof(board_data)); + + memset(physmemr, 0, sizeof physmemr); + memset(availmemr, 0, sizeof availmemr); + physmemr[0].start = 0; + physmemr[0].size = board_data.mem_size & ~PGOFSET; + /* Lower memory reserved by eval board BIOS */ + availmemr[0].start = startkernel; + availmemr[0].size = board_data.mem_size - availmemr[0].start; +} + +void +ibm4xx_init(void (*handler)(void)) +{ + extern int defaulttrap, defaultsize; + extern int sctrap, scsize; + extern int alitrap, alisize; + extern int dsitrap, dsisize; + extern int isitrap, isisize; + extern int mchktrap, mchksize; + extern int tlbimiss4xx, tlbim4size; + extern int tlbdmiss4xx, tlbdm4size; + extern int pitfitwdog, pitfitwdogsize; + extern int debugtrap, debugsize; + extern int errata51handler, errata51size; +#ifdef DDB + extern int ddblow, ddbsize; +#endif +#ifdef IPKDB + extern int ipkdblow, ipkdbsize; +#endif + uintptr_t exc; + struct cpu_info * const ci = curcpu(); + + /* Initialize cache info for memcpy, etc. */ + cpu_probe_cache(); + + /* + * Initialize lwp0 and current pcb and pmap pointers. + */ + KASSERT(ci != NULL); + KASSERT(curcpu() == ci); + lwp0.l_cpu = ci; + lwp0.l_addr = proc0paddr; + memset(lwp0.l_addr, 0, sizeof *lwp0.l_addr); + KASSERT(lwp0.l_cpu != NULL); + + curpcb = &proc0paddr->u_pcb; + memset(curpcb, 0, sizeof(*curpcb)); + curpcb->pcb_pm = pmap_kernel(); + + /* + * Set up trap vectors + */ + for (exc = EXC_RSVD; exc <= EXC_LAST; exc += 0x100) + switch (exc) { + default: + memcpy((void *)exc, &defaulttrap, (size_t)&defaultsize); + break; + case EXC_EXI: + /* + * This one is (potentially) installed during autoconf + */ + break; + case EXC_SC: + memcpy((void *)EXC_SC, &sctrap, (size_t)&scsize); + break; + case EXC_ALI: + memcpy((void *)EXC_ALI, &alitrap, (size_t)&alisize); + break; + case EXC_DSI: + memcpy((void *)EXC_DSI, &dsitrap, (size_t)&dsisize); + break; + case EXC_ISI: + memcpy((void *)EXC_ISI, &isitrap, (size_t)&isisize); + break; + case EXC_MCHK: + memcpy((void *)EXC_MCHK, &mchktrap, (size_t)&mchksize); + break; + case EXC_ITMISS: + memcpy((void *)EXC_ITMISS, &tlbimiss4xx, + (size_t)&tlbim4size); + break; + case EXC_DTMISS: + memcpy((void *)EXC_DTMISS, &tlbdmiss4xx, + (size_t)&tlbdm4size); + break; + /* + * EXC_PIT, EXC_FIT, EXC_WDOG handlers + * are spaced by 0x10 bytes only.. + */ + case EXC_PIT: + memcpy((void *)EXC_PIT, &pitfitwdog, + (size_t)&pitfitwdogsize); + break; + case EXC_DEBUG: + memcpy((void *)EXC_DEBUG, &debugtrap, + (size_t)&debugsize); + break; + case EXC_DTMISS|EXC_ALI: + /* PPC405GP Rev D errata item 51 */ + memcpy((void *)(EXC_DTMISS|EXC_ALI), &errata51handler, + (size_t)&errata51size); + break; +#if defined(DDB) || defined(IPKDB) + case EXC_PGM: +#if defined(DDB) + memcpy((void *)exc, &ddblow, (size_t)&ddbsize); +#elif defined(IPKDB) + memcpy((void *)exc, &ipkdblow, (size_t)&ipkdbsize); +#endif +#endif /* DDB | IPKDB */ + break; + } + + __syncicache((void *)EXC_RST, EXC_LAST - EXC_RST + 0x100); + mtspr(SPR_EVPR, 0); /* Set Exception vector base */ + + consinit(); + + /* Handle trap instruction as PGM exception */ + { + int dbcr0; + asm volatile("mfspr %0,%1":"=r"(dbcr0):"K"(SPR_DBCR0)); + asm volatile("mtspr %0,%1"::"K"(SPR_DBCR0),"r"(dbcr0 & ~DBCR0_TDE)); + } + + /* + * external interrupt handler install + */ + if (handler) + ibm4xx_install_extint(handler); + + /* + * Now enable translation (and machine checks/recoverable interrupts). + */ + asm volatile ("mfmsr %0; ori %0,%0,%1; mtmsr %0; isync" + : : "r"(0), "K"(PSL_IR|PSL_DR)); + /* XXXX PSL_ME - With ME set kernel gets stuck... */ + + KASSERT(curcpu() == ci); +} + +void +ibm4xx_install_extint(void (*handler)(void)) +{ + extern int extint, extsize; + extern u_long extint_call; + u_long offset = (u_long)handler - (u_long)&extint_call; + int msr; + +#ifdef DIAGNOSTIC + if (offset > 0x1ffffff) + panic("install_extint: too far away"); +#endif + asm volatile ("mfmsr %0; wrteei 0" : "=r"(msr)); + extint_call = (extint_call & 0xfc000003) | offset; + memcpy((void *)EXC_EXI, &extint, (size_t)&extsize); + __syncicache((void *)&extint_call, sizeof extint_call); + __syncicache((void *)EXC_EXI, (int)&extsize); + asm volatile ("mtmsr %0" :: "r"(msr)); +} + +/* + * Machine dependent startup code. + */ + +char msgbuf[MSGBUFSIZE]; + +void +ibm4xx_startup(const char *model) +{ + uintptr_t sz; + u_int i; + u_long base, residual; + caddr_t v; + vaddr_t minaddr, maxaddr; + char pbuf[9]; + + KASSERT(curcpu() != NULL); + KASSERT(lwp0.l_cpu != NULL); + KASSERT(curcpu()->ci_intstk != 0); + KASSERT(curcpu()->ci_intrdepth == -1); + + /* + * Initialize error message buffer (at end of core). + */ +#if 0 /* For some reason this fails... --Artem + * Besides, do we really have to put it at the end of core? + * Let's use static buffer for now + */ + if (!(msgbuf_vaddr = uvm_km_alloc(kernel_map, round_page(MSGBUFSIZE)))) + panic("startup: no room for message buffer"); + for (i = 0; i < btoc(MSGBUFSIZE); i++) + pmap_kenter_pa(msgbuf_vaddr + i * PAGE_SIZE, + msgbuf_paddr + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE); + initmsgbuf((caddr_t)msgbuf_vaddr, round_page(MSGBUFSIZE)); +#else + initmsgbuf((caddr_t)msgbuf, round_page(MSGBUFSIZE)); +#endif + + printf("%s", version); + if (model != NULL) + printf("Model: %s\n", model); + + format_bytes(pbuf, sizeof(pbuf), ctob(physmem)); + printf("total memory = %s\n", pbuf); + + /* + * Find out how much space we need, allocate it, + * and then give everything true virtual addresses. + */ + sz = (u_int)allocsys(NULL, NULL); + if ((v = (caddr_t)uvm_km_zalloc(kernel_map, round_page(sz))) == 0) + panic("startup: no room for tables"); + if (allocsys(v, NULL) - v != sz) + panic("startup: table size inconsistency"); + + /* + * Now allocate buffers proper. They are different than the above + * in that they usually occupy more virtual memory than physical. + */ + sz = MAXBSIZE * nbuf; + minaddr = 0; + if (uvm_map(kernel_map, (vaddr_t *)&minaddr, round_page(sz), + NULL, UVM_UNKNOWN_OFFSET, 0, + UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, + UVM_ADV_NORMAL, 0)) != 0) + panic("startup: cannot allocate VM for buffers"); + buffers = (char *)minaddr; + base = bufpages / nbuf; + residual = bufpages % nbuf; + if (base >= MAXBSIZE) { + /* Don't want to alloc more physical mem than ever needed */ + base = MAXBSIZE; + residual = 0; + } + for (i = 0; i < nbuf; i++) { + vsize_t curbufsize; + vaddr_t curbuf; + struct vm_page *pg; + + curbuf = (vaddr_t)buffers + i * MAXBSIZE; + curbufsize = PAGE_SIZE * (i < residual ? base + 1 : base); + + while (curbufsize) { + pg = uvm_pagealloc(NULL, 0, NULL, 0); + if (pg == NULL) + panic("cpu_startup: not enough memory for " + "buffer cache"); + pmap_kenter_pa(curbuf, VM_PAGE_TO_PHYS(pg), + VM_PROT_READ | VM_PROT_WRITE); + curbuf += PAGE_SIZE; + curbufsize -= PAGE_SIZE; + } + } + + /* + * Allocate a submap for exec arguments. This map effectively + * limits the number of processes exec'ing at any time. + */ + exec_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, + 16*NCARGS, VM_MAP_PAGEABLE, FALSE, NULL); + + /* + * Allocate a submap for physio + */ + phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr, + VM_PHYS_SIZE, 0, FALSE, NULL); + + /* + * No need to allocate an mbuf cluster submap. Mbuf clusters + * are allocated via the pool allocator, and we use direct-mapped + * pool pages. + */ + + format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free)); + printf("avail memory = %s\n", pbuf); + format_bytes(pbuf, sizeof(pbuf), bufpages * PAGE_SIZE); + printf("using %u buffers containing %s of memory\n", nbuf, pbuf); + + /* + * Set up the buffers. + */ + bufinit(); +} + +void +ibm4xx_setup_propdb(void) +{ + /* + * Set up the board properties database. + */ + if (!(board_info = propdb_create("board info"))) + panic("Cannot create board info database"); + + if (board_info_set("mem-size", &board_data.mem_size, + sizeof(&board_data.mem_size), PROP_CONST, 0)) + panic("setting mem-size"); + if (board_info_set("sip0-mac-addr", &board_data.mac_address_pci, + sizeof(&board_data.mac_address_pci), PROP_CONST, 0)) + panic("setting sip0-mac-addr"); + if (board_info_set("processor-frequency", &board_data.processor_speed, + sizeof(&board_data.processor_speed), PROP_CONST, 0)) + panic("setting processor-frequency"); +} + + +/* + * Crash dump handling. + */ +void +ibm4xx_dumpsys(void) +{ + printf("dumpsys: TBD\n"); +} + +/* + * Soft networking interrupts. + */ +void +softnet(void) +{ + int isr; + + isr = netisr; + netisr = 0; + +#define DONETISR(bit, fn) do { \ + if (isr & (1 << bit)) \ + fn(); \ +} while (0) + +#include + +#undef DONETISR + +} + +/* + * Soft tty interrupts. + */ +#include "com.h" +void +softserial(void) +{ +#if NCOM > 0 + void comsoft(void); /* XXX from dev/ic/com.c */ + + comsoft(); +#endif +} + +void +mem_regions(struct mem_region **mem, struct mem_region **avail) +{ + *mem = physmemr; + *avail = availmemr; +} diff --git a/sys/arch/powerpc/include/ibm4xx/cpu.h b/sys/arch/powerpc/include/ibm4xx/cpu.h index 8814cc31004c..c39a6e868eaa 100644 --- a/sys/arch/powerpc/include/ibm4xx/cpu.h +++ b/sys/arch/powerpc/include/ibm4xx/cpu.h @@ -1,4 +1,4 @@ -/* $NetBSD: cpu.h,v 1.5 2003/06/13 04:05:27 msaitoh Exp $ */ +/* $NetBSD: cpu.h,v 1.6 2003/09/23 15:14:03 shige Exp $ */ /* * Copyright 2002 Wasabi Systems, Inc. @@ -60,6 +60,12 @@ #if defined(_KERNEL) extern char bootpath[]; +void ibm4xx_init_board_data(void *, u_int); +void ibm4xx_init(void (*)(void)); +void ibm4xx_startup(const char *); +void ibm4xx_setup_propdb(void); +void ibm4xx_dumpsys(void); +void ibm4xx_install_extint(void (*)(void)); void calc_delayconst(void); void ppc4xx_reset(void) __attribute__((__noreturn__)); #endif /* _KERNEL */