X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d52fe63fc81f7e44faaae711812a211a78434976..ab86ba338a07a58a89f50cf7066a0f0e487ac0cc:/osfmk/ppc/ppc_init.c diff --git a/osfmk/ppc/ppc_init.c b/osfmk/ppc/ppc_init.c index d75761a1a..6a79ce40d 100644 --- a/osfmk/ppc/ppc_init.c +++ b/osfmk/ppc/ppc_init.c @@ -3,19 +3,22 @@ * * @APPLE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ @@ -24,6 +27,7 @@ */ #include +#include #include #include @@ -42,70 +46,52 @@ #include #include #include +#include #include -extern const char version[]; -extern const char version_variant[]; - extern unsigned int intstack_top_ss; /* declared in start.s */ -extern unsigned int debstackptr; /* declared in start.s */ +extern unsigned int debstackptr; /* declared in start.s */ extern unsigned int debstack_top_ss; /* declared in start.s */ -extern void thandler(void); /* trap handler */ -extern void ihandler(void); /* interrupt handler */ -extern void shandler(void); /* syscall handler */ -extern void chandler(void); /* system choke */ -extern void fpu_switch(void); /* fp handler */ -extern void vec_switch(void); /* vector handler */ -extern void atomic_switch_trap(void); /* fast path atomic thread switch */ - -void (*exception_handlers[])(void) = { - thandler, /* 0x000 INVALID EXCEPTION (T_IN_VAIN) */ - thandler, /* 0x100 System reset (T_RESET) */ - thandler, /* 0x200 Machine check (T_MACHINE_CHECK) */ - thandler, /* 0x300 Data access (T_DATA_ACCESS) */ - thandler, /* 0x400 Instruction access (T_INSTRUCTION_ACCESS) */ - ihandler, /* 0x500 External interrupt (T_INTERRUPT) */ - thandler, /* 0x600 Alignment (T_ALIGNMENT) */ - thandler, /* 0x700 fp exc, ill/priv instr, trap (T_PROGRAM) */ - fpu_switch, /* 0x800 Floating point disabled (T_FP_UNAVAILABLE) */ - ihandler, /* 0x900 Decrementer (T_DECREMENTER) */ - thandler, /* 0xA00 I/O controller interface (T_IO_ERROR) */ - thandler, /* 0xB00 INVALID EXCEPTION (T_RESERVED) */ - shandler, /* 0xC00 System call exception (T_SYSTEM_CALL) */ - thandler, /* 0xD00 Trace (T_TRACE) */ - thandler, /* 0xE00 FP assist (T_FP_ASSIST) */ - thandler, /* 0xF00 Performance monitor (T_PERF_MON) */ - vec_switch, /* 0xF20 VMX (T_VMX) */ - thandler, /* 0x1000 INVALID EXCEPTION (T_INVALID_EXCP0) */ - thandler, /* 0x1100 INVALID EXCEPTION (T_INVALID_EXCP1) */ - thandler, /* 0x1200 INVALID EXCEPTION (T_INVALID_EXCP2) */ - thandler, /* 0x1300 instruction breakpoint (T_INSTRUCTION_BKPT) */ - ihandler, /* 0x1400 system management (T_SYSTEM_MANAGEMENT) */ - thandler, /* 0x1600 Altivec Assist (T_ALTIVEC_ASSIST) */ - ihandler, /* 0x1700 Thermal interruption (T_THERMAL) */ - thandler, /* 0x1800 INVALID EXCEPTION (T_INVALID_EXCP5) */ - thandler, /* 0x1900 INVALID EXCEPTION (T_INVALID_EXCP6) */ - thandler, /* 0x1A00 INVALID EXCEPTION (T_INVALID_EXCP7) */ - thandler, /* 0x1B00 INVALID EXCEPTION (T_INVALID_EXCP8) */ - thandler, /* 0x1C00 INVALID EXCEPTION (T_INVALID_EXCP9) */ - thandler, /* 0x1D00 INVALID EXCEPTION (T_INVALID_EXCP10) */ - thandler, /* 0x1E00 INVALID EXCEPTION (T_INVALID_EXCP11) */ - thandler, /* 0x1F00 INVALID EXCEPTION (T_INVALID_EXCP12) */ - thandler, /* 0x1F00 INVALID EXCEPTION (T_INVALID_EXCP13) */ - thandler, /* 0x2000 Run Mode/Trace (T_RUNMODE_TRACE) */ - - ihandler, /* Software Signal processor (T_SIGP) */ - thandler, /* Software Preemption (T_PREEMPT) */ - ihandler, /* Software INVALID EXCEPTION (T_CSWITCH) */ - ihandler, /* Software Shutdown Context (T_SHUTDOWN) */ - chandler /* Software System choke (crash) (T_CHOKE) */ -}; - int pc_trace_buf[1024] = {0}; int pc_trace_cnt = 1024; +extern unsigned int extPatchMCK; +extern unsigned int extPatch32; +extern unsigned int hwulckPatch_isync; +extern unsigned int hwulckPatch_eieio; +extern unsigned int hwulckbPatch_isync; +extern unsigned int hwulckbPatch_eieio; +extern unsigned int mulckPatch_isync; +extern unsigned int mulckPatch_eieio; +extern unsigned int sulckPatch_isync; +extern unsigned int sulckPatch_eieio; +extern unsigned int retfsectPatch_eieio; +extern unsigned int retfsectPatch_isync; + +int forcenap = 0; + +patch_entry_t patch_table[PATCH_TABLE_SIZE] = { + &extPatch32, 0x60000000, PATCH_FEATURE, PatchExt32, + &extPatchMCK, 0x60000000, PATCH_PROCESSOR, CPU_SUBTYPE_POWERPC_970, + &hwulckPatch_isync, 0x60000000, PATCH_FEATURE, PatchLwsync, + &hwulckPatch_eieio, 0x7c2004ac, PATCH_FEATURE, PatchLwsync, + &hwulckbPatch_isync, 0x60000000, PATCH_FEATURE, PatchLwsync, + &hwulckbPatch_eieio, 0x7c2004ac, PATCH_FEATURE, PatchLwsync, + &mulckPatch_isync, 0x60000000, PATCH_FEATURE, PatchLwsync, + &mulckPatch_eieio, 0x7c2004ac, PATCH_FEATURE, PatchLwsync, + &sulckPatch_isync, 0x60000000, PATCH_FEATURE, PatchLwsync, + &sulckPatch_eieio, 0x7c2004ac, PATCH_FEATURE, PatchLwsync, +#if !MACH_LDEBUG + &retfsectPatch_isync, 0x60000000, PATCH_FEATURE, PatchLwsync, + &retfsectPatch_eieio, 0x7c2004ac, PATCH_FEATURE, PatchLwsync +#else + 0, 0, PATCH_INVALID, 0, + 0, 0, PATCH_INVALID, 0 +#endif + }; + void ppc_init(boot_args *args) { int i; @@ -113,8 +99,12 @@ void ppc_init(boot_args *args) char *str; unsigned long addr, videoAddr; unsigned int maxmem; - bat_t bat; + uint64_t xmaxmem; + unsigned int cputrace; + unsigned int novmx; extern vm_offset_t static_memory_end; + thread_t thread; + mapping *mp; /* * Setup per_proc info for first cpu. @@ -127,21 +117,26 @@ void ppc_init(boot_args *args) per_proc_info[0].debstackptr = debstackptr; per_proc_info[0].debstack_top_ss = debstack_top_ss; per_proc_info[0].interrupts_enabled = 0; - per_proc_info[0].active_kloaded = (unsigned int) - &active_kloaded[0]; - per_proc_info[0].cpu_data = (unsigned int) - &cpu_data[0]; - per_proc_info[0].active_stacks = (unsigned int) - &active_stacks[0]; - per_proc_info[0].need_ast = (unsigned int) - &need_ast[0]; - per_proc_info[0].FPU_thread = 0; - per_proc_info[0].FPU_vmmCtx = 0; - per_proc_info[0].VMX_thread = 0; - per_proc_info[0].VMX_vmmCtx = 0; + per_proc_info[0].pp_preemption_count = -1; + per_proc_info[0].pp_simple_lock_count = 0; + per_proc_info[0].pp_interrupt_level = 0; + per_proc_info[0].need_ast = (unsigned int)&need_ast[0]; + per_proc_info[0].FPU_owner = 0; + per_proc_info[0].VMX_owner = 0; + mp = (mapping *)per_proc_info[0].ppCIOmp; + mp->mpFlags = 0x01000000 | mpSpecial | 1; + mp->mpSpace = invalSpace; machine_slot[0].is_cpu = TRUE; + thread_bootstrap(); + + thread = current_act(); + thread->mact.curctx = &thread->mact.facctx; + thread->mact.facctx.facAct = thread; + thread->mact.cioSpace = invalSpace; /* Initialize copyin/out space to invalid */ + thread->mact.preemption_count = 1; + cpu_init(); /* @@ -152,146 +147,54 @@ void ppc_init(boot_args *args) master_cpu = 0; master_processor = cpu_to_processor(master_cpu); - /* Set up segment registers as VM through space 0 */ - for (i=0; i<=15; i++) { - isync(); - mtsrin((KERNEL_SEG_REG0_VALUE | (i << 20)), i * 0x10000000); - sync(); - } - - static_memory_end = round_page(args->topOfKernelData);; - /* Get platform expert set up */ - PE_init_platform(FALSE, args); - - - /* This is how the BATs get configured */ - /* IBAT[0] maps Segment 0 1:1 */ - /* DBAT[0] maps Segment 0 1:1 */ - /* DBAT[2] maps the I/O Segment 1:1 */ - /* DBAT[3] maps the Video Segment 1:1 */ - - - /* Initialize shadow IBATs */ - shadow_BAT.IBATs[0].upper=BAT_INVALID; - shadow_BAT.IBATs[0].lower=BAT_INVALID; - shadow_BAT.IBATs[1].upper=BAT_INVALID; - shadow_BAT.IBATs[1].lower=BAT_INVALID; - shadow_BAT.IBATs[2].upper=BAT_INVALID; - shadow_BAT.IBATs[2].lower=BAT_INVALID; - shadow_BAT.IBATs[3].upper=BAT_INVALID; - shadow_BAT.IBATs[3].lower=BAT_INVALID; - - /* Initialize shadow DBATs */ - shadow_BAT.DBATs[0].upper=BAT_INVALID; - shadow_BAT.DBATs[0].lower=BAT_INVALID; - shadow_BAT.DBATs[1].upper=BAT_INVALID; - shadow_BAT.DBATs[1].lower=BAT_INVALID; - shadow_BAT.DBATs[2].upper=BAT_INVALID; - shadow_BAT.DBATs[2].lower=BAT_INVALID; - shadow_BAT.DBATs[3].upper=BAT_INVALID; - shadow_BAT.DBATs[3].lower=BAT_INVALID; + static_memory_end = round_page_32(args->topOfKernelData);; + + PE_init_platform(FALSE, args); /* Get platform expert set up */ + if (!PE_parse_boot_arg("novmx", &novmx)) novmx=0; /* Special run without VMX? */ + if(novmx) { /* Yeah, turn it off */ + for(i = 0; i < NCPUS; i++) { /* Cycle through all potential processors */ + per_proc_info[i].pf.Available &= ~pfAltivec; /* Turn off Altivec available */ + } + __asm__ volatile("mtsprg 2,%0" : : "r" (per_proc_info[0].pf.Available)); /* Set live value */ + } - /* If v_baseAddr is non zero, use DBAT3 to map the video segment */ - videoAddr = args->Video.v_baseAddr & 0xF0000000; - if (videoAddr) { - /* start off specifying 1-1 mapping of video seg */ - bat.upper.word = videoAddr; - bat.lower.word = videoAddr; - - bat.upper.bits.bl = 0x7ff; /* size = 256M */ - bat.upper.bits.vs = 1; - bat.upper.bits.vp = 0; - - bat.lower.bits.wimg = PTE_WIMG_IO; - bat.lower.bits.pp = 2; /* read/write access */ - - shadow_BAT.DBATs[3].upper = bat.upper.word; - shadow_BAT.DBATs[3].lower = bat.lower.word; - - sync();isync(); - - mtdbatu(3, BAT_INVALID); /* invalidate old mapping */ - mtdbatl(3, bat.lower.word); - mtdbatu(3, bat.upper.word); - sync();isync(); + if (!PE_parse_boot_arg("fn", &forcenap)) forcenap = 0; /* If force nap not set, make 0 */ + else { + if(forcenap < 2) forcenap = forcenap + 1; /* Else set 1 for off, 2 for on */ + else forcenap = 0; /* Clear for error case */ } - /* Use DBAT2 to map the io segment */ - addr = get_io_base_addr() & 0xF0000000; - if (addr != videoAddr) { - /* start off specifying 1-1 mapping of io seg */ - bat.upper.word = addr; - bat.lower.word = addr; - - bat.upper.bits.bl = 0x7ff; /* size = 256M */ - bat.upper.bits.vs = 1; - bat.upper.bits.vp = 0; - - bat.lower.bits.wimg = PTE_WIMG_IO; - bat.lower.bits.pp = 2; /* read/write access */ - - shadow_BAT.DBATs[2].upper = bat.upper.word; - shadow_BAT.DBATs[2].lower = bat.lower.word; - - sync();isync(); - mtdbatu(2, BAT_INVALID); /* invalidate old mapping */ - mtdbatl(2, bat.lower.word); - mtdbatu(2, bat.upper.word); - sync();isync(); - } - if (!PE_parse_boot_arg("diag", &dgWork.dgFlags)) dgWork.dgFlags=0; /* Set diagnostic flags */ if(dgWork.dgFlags & enaExpTrace) trcWork.traceMask = 0xFFFFFFFF; /* If tracing requested, enable it */ -#if 0 - GratefulDebInit((bootBumbleC *)&(args->Video)); /* Initialize the GratefulDeb debugger */ -#endif - - printf_init(); /* Init this in case we need debugger */ - panic_init(); /* Init this in case we need debugger */ - - /* setup debugging output if one has been chosen */ - PE_init_kprintf(FALSE); - kprintf("kprintf initialized\n"); - - /* create the console for verbose or pretty mode */ - PE_create_console(); - - /* setup console output */ - PE_init_printf(FALSE); - - kprintf("version_variant = %s\n", version_variant); - kprintf("version = %s\n", version); + if(PE_parse_boot_arg("ctrc", &cputrace)) { /* See if tracing is limited to a specific cpu */ + trcWork.traceMask = (trcWork.traceMask & 0xFFFFFFF0) | (cputrace & 0xF); /* Limit to 4 */ + } + if(!PE_parse_boot_arg("tb", &trcWork.traceSize)) { /* See if non-default trace buffer size */ #if DEBUG - printf("\n\n\nThis program was compiled using gcc %d.%d for powerpc\n", - __GNUC__,__GNUC_MINOR__); - - /* Processor version information */ - { - unsigned int pvr; - __asm__ ("mfpvr %0" : "=r" (pvr)); - printf("processor version register : 0x%08x\n",pvr); - } - for (i = 0; i < kMaxDRAMBanks; i++) { - if (args->PhysicalDRAM[i].size) - printf("DRAM at 0x%08x size 0x%08x\n", - args->PhysicalDRAM[i].base, - args->PhysicalDRAM[i].size); + trcWork.traceSize = 32; /* Default 32 page trace table for DEBUG */ +#else + trcWork.traceSize = 8; /* Default 8 page trace table for RELEASE */ +#endif } -#endif /* DEBUG */ - /* - * VM initialization, after this we're using page tables... - */ + if(trcWork.traceSize < 1) trcWork.traceSize = 1; /* Minimum size of 1 page */ + if(trcWork.traceSize > 256) trcWork.traceSize = 256; /* Maximum size of 256 pages */ + trcWork.traceSize = trcWork.traceSize * 4096; /* Change page count to size */ + if (!PE_parse_boot_arg("maxmem", &maxmem)) - maxmem=0; + xmaxmem=0; else - maxmem = maxmem * (1024 * 1024); + xmaxmem = (uint64_t)maxmem * (1024 * 1024); - ppc_vm_init(maxmem, args); +/* + * VM initialization, after this we're using page tables... + */ + ppc_vm_init(xmaxmem, args); + PE_init_platform(TRUE, args); machine_startup(args); @@ -301,28 +204,14 @@ ppc_init_cpu( struct per_proc_info *proc_info) { int i; - unsigned int gph; - savectl *sctl; /* Savearea controls */ - if(proc_info->savedSave) { /* Do we have a savearea set up already? */ - mtsprg(1, proc_info->savedSave); /* Set saved address of savearea */ - } - else { - gph = (unsigned int)save_get_phys(); /* Get a savearea (physical addressing) */ - mtsprg(1, gph); /* Set physical address of savearea */ - } + proc_info->cpu_flags &= ~SleepState; + + if(!(proc_info->next_savearea)) /* Do we have a savearea set up already? */ + proc_info->next_savearea = (uint64_t)save_get_init(); /* Get a savearea */ cpu_init(); - proc_info->Lastpmap = 0; /* Clear last used space */ - - /* Set up segment registers as VM through space 0 */ - for (i=0; i<=15; i++) { - isync(); - mtsrin((KERNEL_SEG_REG0_VALUE | (i << 20)), i * 0x10000000); - sync(); - } - ppc_vm_cpu_init(proc_info); ml_thrm_init(); /* Start thermal monitoring on this processor */