xnu-792.13.8.tar.gz

[apple/xnu.git] / osfmk / ppc / ppc_init.c

diff --git a/osfmk/ppc/ppc_init.c b/osfmk/ppc/ppc_init.c
index e52131729d99de7cbed2846a03ca57c0838f7b9b..47f0263a380c353d7f25dd4fab1e0d82d0af5c02 100644 (file)
--- a/osfmk/ppc/ppc_init.c
+++ b/osfmk/ppc/ppc_init.c
@@ -1,35 +1,45 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_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.
- * 
- * This 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
+ * Please see the License for the specific language governing rights and 
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@

  */
 /*
  * @OSF_COPYRIGHT@
  */
 
 #include <debug.h>
  */
 /*
  * @OSF_COPYRIGHT@
  */
 
 #include <debug.h>

+#include <mach_ldebug.h>

 #include <mach_kdb.h>
 #include <mach_kdp.h>
 
 #include <kern/misc_protos.h>
 #include <kern/thread.h>
 #include <kern/processor.h>
 #include <mach_kdb.h>
 #include <mach_kdp.h>
 
 #include <kern/misc_protos.h>
 #include <kern/thread.h>
 #include <kern/processor.h>

+#include <kern/startup.h>

 #include <machine/machine_routines.h>
 #include <ppc/boot.h>
 #include <ppc/proc_reg.h>
 #include <machine/machine_routines.h>
 #include <ppc/boot.h>
 #include <ppc/proc_reg.h>


@@ -37,300 +47,261 @@
 #include <ppc/pmap.h>
 #include <ppc/new_screen.h>
 #include <ppc/exception.h>
 #include <ppc/pmap.h>
 #include <ppc/new_screen.h>
 #include <ppc/exception.h>

+#include <ppc/asm.h>

 #include <ppc/Firmware.h>
 #include <ppc/savearea.h>
 #include <ppc/low_trace.h>
 #include <ppc/Diagnostics.h>
 #include <ppc/Firmware.h>
 #include <ppc/savearea.h>
 #include <ppc/low_trace.h>
 #include <ppc/Diagnostics.h>

+#include <ppc/cpu_internal.h>

 #include <ppc/mem.h>
 #include <ppc/mem.h>

+#include <ppc/mappings.h>
+#include <ppc/locks.h>
+#include <kern/pms.h>
+#include <ppc/rtclock.h>

 
 #include <pexpert/pexpert.h>
 
 
 #include <pexpert/pexpert.h>
 

-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 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) */
-};
+extern unsigned int mckFlags;
+extern vm_offset_t     intstack;
+extern vm_offset_t     debstack;  

 
 int pc_trace_buf[1024] = {0};
 int pc_trace_cnt = 1024;
 
 
 int pc_trace_buf[1024] = {0};
 int pc_trace_cnt = 1024;
 

-void ppc_init(boot_args *args)
+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 mulckePatch_isync;
+extern unsigned int mulckePatch_eieio;
+extern unsigned int sulckPatch_isync;
+extern unsigned int sulckPatch_eieio;
+extern unsigned int rwlesPatch_isync;
+extern unsigned int rwlesPatch_eieio;
+extern unsigned int rwldPatch_isync;
+extern unsigned int rwldPatch_eieio;
+extern unsigned int retfsectPatch_eieio;
+extern unsigned int retfsectPatch_isync;
+extern unsigned int bcopy_nop_if_32bit;
+extern unsigned int bcopy_nc_nop_if_32bit;
+extern unsigned int memcpy_nop_if_32bit;
+extern unsigned int xsum_nop_if_32bit;
+extern unsigned int uft_nop_if_32bit;
+extern unsigned int uft_uaw_nop_if_32bit;
+extern unsigned int uft_cuttrace;
+
+int forcenap = 0;
+int wcte = 0;                          /* Non-cache gather timer disabled */
+
+patch_entry_t patch_table[] = {
+       {&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},
+       {&mulckePatch_isync,    0x60000000, PATCH_FEATURE,              PatchLwsync},
+       {&mulckePatch_eieio,    0x7c2004ac, PATCH_FEATURE,              PatchLwsync},
+       {&sulckPatch_isync,             0x60000000, PATCH_FEATURE,              PatchLwsync},
+       {&sulckPatch_eieio,             0x7c2004ac, PATCH_FEATURE,              PatchLwsync},
+       {&rwlesPatch_isync,             0x60000000, PATCH_FEATURE,              PatchLwsync},
+       {&rwlesPatch_eieio,             0x7c2004ac, PATCH_FEATURE,              PatchLwsync},
+       {&rwldPatch_isync,              0x60000000, PATCH_FEATURE,              PatchLwsync},
+       {&rwldPatch_eieio,              0x7c2004ac, PATCH_FEATURE,              PatchLwsync},
+       {&bcopy_nop_if_32bit,   0x60000000, PATCH_FEATURE,              PatchExt32},
+       {&bcopy_nc_nop_if_32bit,0x60000000, PATCH_FEATURE,              PatchExt32},
+       {&memcpy_nop_if_32bit,  0x60000000, PATCH_FEATURE,              PatchExt32},
+#if    !MACH_LDEBUG
+       {&retfsectPatch_isync,  0x60000000, PATCH_FEATURE,              PatchLwsync},
+       {&retfsectPatch_eieio,  0x7c2004ac, PATCH_FEATURE,              PatchLwsync},
+#endif
+       {&xsum_nop_if_32bit,    0x60000000,     PATCH_FEATURE,          PatchExt32},
+       {&uft_nop_if_32bit,             0x60000000,     PATCH_FEATURE,          PatchExt32},
+       {&uft_uaw_nop_if_32bit, 0x60000000,     PATCH_FEATURE,          PatchExt32},
+       {&uft_cuttrace,                 0x60000000,     PATCH_FEATURE,          PatchExt32},
+    {NULL,                  0x00000000, PATCH_END_OF_TABLE, 0}
+       };
+
+
+/*
+ * Forward definition
+ */
+void   ppc_init(
+                       boot_args       *args);
+
+void   ppc_init_cpu(
+                       struct per_proc_info *proc_info);
+
+/*
+ *             Routine:                ppc_init
+ *             Function:
+ */
+void
+ppc_init(
+               boot_args *args)

 {
 {

-       int i;
-       unsigned long *src,*dst;
-       char *str;
-       unsigned long   addr, videoAddr;
-       unsigned int    maxmem;
-       unsigned int    cputrace;
-       bat_t               bat;
-       extern vm_offset_t static_memory_end;
-       
+       unsigned int            maxmem;
+       uint64_t                        xmaxmem;
+       uint64_t                        newhid;
+       unsigned int            cputrace;
+       unsigned int            novmx;
+       unsigned int            mcksoft;
+       thread_t                        thread;
+       mapping_t                       *mp;
+       uint64_t                        scdata;
+
+
+

        /*
         * Setup per_proc info for first cpu.
         */
 
        /*
         * Setup per_proc info for first cpu.
         */
 

-       per_proc_info[0].cpu_number = 0;
-       per_proc_info[0].cpu_flags = 0;
-       per_proc_info[0].istackptr = 0; /* we're on the interrupt stack */
-       per_proc_info[0].intstack_top_ss = intstack_top_ss;
-       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];
-       set_machine_current_thread(&pageout_thread);
-       set_machine_current_act(&pageout_act);
-       pageout_thread.top_act = &pageout_act;
-       pageout_act.thread = &pageout_thread;
-       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].active_stacks = (unsigned int)
-               &active_stacks[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;
-
-       machine_slot[0].is_cpu = TRUE;
+       BootProcInfo.cpu_number = 0;
+       BootProcInfo.cpu_flags = 0;
+       BootProcInfo.istackptr = 0;                                                     /* we're on the interrupt stack */
+       BootProcInfo.intstack_top_ss = (vm_offset_t)&intstack + INTSTACK_SIZE - FM_SIZE;
+       BootProcInfo.debstack_top_ss = (vm_offset_t)&debstack + KERNEL_STACK_SIZE - FM_SIZE;
+       BootProcInfo.debstackptr = BootProcInfo.debstack_top_ss;
+       BootProcInfo.interrupts_enabled = 0;
+       BootProcInfo.pending_ast = AST_NONE;
+       BootProcInfo.FPU_owner = 0;
+       BootProcInfo.VMX_owner = 0;
+       BootProcInfo.pp_cbfr = console_per_proc_alloc(TRUE);
+       BootProcInfo.rtcPop = EndOfAllTime;
+       BootProcInfo.pp2ndPage = (addr64_t)&BootProcInfo;       /* Initial physical address of the second page */
+
+       BootProcInfo.pms.pmsStamp = 0;                                          /* Dummy transition time */
+       BootProcInfo.pms.pmsPop = EndOfAllTime;                         /* Set the pop way into the future */
+       
+       BootProcInfo.pms.pmsState = pmsParked;                          /* Park the power stepper */
+       BootProcInfo.pms.pmsCSetCmd = pmsCInit;                         /* Set dummy initial hardware state */
+       
+       mp = (mapping_t *)BootProcInfo.ppUMWmp;
+       mp->mpFlags = 0x01000000 | mpLinkage | mpPerm | 1;
+       mp->mpSpace = invalSpace;
+
+       pmsInit();                                                                                      /* Initialize the stepper */

 
 

+       thread_bootstrap();
+
+       thread = current_thread();
+       thread->machine.curctx = &thread->machine.facctx;
+       thread->machine.facctx.facAct = thread;
+       thread->machine.umwSpace = invalSpace;                          /* Initialize user memory window space to invalid */
+       thread->machine.preemption_count = 1;
+
+       cpu_bootstrap();

        cpu_init();
 
        cpu_init();
 

-       /*
-        * Setup some processor related structures to satisfy funnels.
-        * Must be done before using unparallelized device drivers.
-        */
-       processor_ptr[0] = &processor_array[0];

        master_cpu = 0;
        master_cpu = 0;

-       master_processor = cpu_to_processor(master_cpu);
+       processor_bootstrap();

 
 

-       /* 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();
-       }
+       timer_switch((uint32_t)mach_absolute_time(), &thread->system_timer);

 
        static_memory_end = round_page(args->topOfKernelData);;
 
        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;
-
-
-       /* 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();
-       }
-       
-       /* 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();
+      
+       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 */
+               BootProcInfo.pf.Available &= ~pfAltivec;                /* Turn off Altivec available */
+               __asm__ volatile("mtsprg 2,%0" : : "r" (BootProcInfo.pf.Available));    /* Set live value */

        }
 
        }
 

-       if (!PE_parse_boot_arg("diag", &dgWork.dgFlags)) dgWork.dgFlags=0;      /* Set diagnostic flags */
+       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 */
+       }
+       
+       if (!PE_parse_boot_arg("pmsx", &pmsExperimental)) pmsExperimental = 0;  /* Check if we should start in experimental power management stepper mode */
+       if (!PE_parse_boot_arg("lcks", &LcksOpts)) LcksOpts = 0;        /* Set lcks options */
+       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(dgWork.dgFlags & enaExpTrace) trcWork.traceMask = 0xFFFFFFFF;        /* If tracing requested, enable it */
 

-       if(PE_parse_boot_arg("ctrc", &cputrace)) {                                                      /* See if tracing is limited to a specific cpu */
+       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 */
        }
 
                trcWork.traceMask = (trcWork.traceMask & 0xFFFFFFF0) | (cputrace & 0xF);        /* Limit to 4 */
        }
 

-#if 0
-       GratefulDebInit((bootBumbleC *)&(args->Video)); /* Initialize the GratefulDeb debugger */
+       if(!PE_parse_boot_arg("tb", &trcWork.traceSize)) {      /* See if non-default trace buffer size */
+#if DEBUG
+               trcWork.traceSize = 32;                                                 /* Default 32 page trace table for DEBUG */
+#else
+               trcWork.traceSize = 8;                                                  /* Default 8 page trace table for RELEASE */

 #endif
 #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();
+       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 */

 
 

-       /* setup console output */
-       PE_init_printf(FALSE);
+       if (!PE_parse_boot_arg("maxmem", &maxmem))
+               xmaxmem=0;
+       else
+               xmaxmem = (uint64_t)maxmem * (1024 * 1024);

 
 

-       kprintf("version_variant = %s\n", version_variant);
-       kprintf("version         = %s\n", version);
+       if (!PE_parse_boot_arg("wcte", &wcte)) wcte = 0;        /* If write combine timer enable not supplied, make 1 */
+       else wcte = (wcte != 0);                                                        /* Force to 0 or 1 */

 
 

-#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);
-       }
-#endif /* DEBUG */
+       if (!PE_parse_boot_arg("mcklog", &mckFlags)) mckFlags = 0;      /* If machine check flags not specified, clear */
+       else if(mckFlags > 1) mckFlags = 0;                                     /* If bogus, clear */
+    
+    if (!PE_parse_boot_arg("ht_shift", &hash_table_shift))  /* should we use a non-default hash table size? */
+        hash_table_shift = 0;                           /* no, use default size */

 
        /*   
         * VM initialization, after this we're using page tables...
         */
 
        /*   
         * VM initialization, after this we're using page tables...
         */

-       if (!PE_parse_boot_arg("maxmem", &maxmem))
-               maxmem=0;
-       else
-               maxmem = maxmem * (1024 * 1024);

 
 

-       ppc_vm_init(maxmem, args);
-
-       PE_init_platform(TRUE, args);
+       ppc_vm_init(xmaxmem, args);

        
        

+       if(BootProcInfo.pf.Available & pf64Bit) {                       /* Are we on a 64-bit machine */
+               
+               if(!wcte) {
+                       (void)ml_scom_read(GUSModeReg << 8, &scdata);   /* Get GUS mode register */
+                       scdata = scdata | GUSMstgttoff;                                 /* Disable the NCU store gather timer */
+                       (void)ml_scom_write(GUSModeReg << 8, scdata);   /* Get GUS mode register */
+               }
+               
+               if(PE_parse_boot_arg("mcksoft", &mcksoft)) {    /* Have they supplied "machine check software recovery? */
+                       newhid = BootProcInfo.pf.pfHID5;                        /* Get the old HID5 */
+                       if(mcksoft < 2) {
+                               newhid &= 0xFFFFFFFFFFFFDFFFULL;                /* Clear the old one */
+                               newhid |= (mcksoft & 1) << 13;                  /* Set new value to enable machine check recovery */
+                               BootProcInfo.pf.pfHID5 = newhid;                /* Set the new one */
+                               hid5set64(newhid);                                              /* Set the hid for this processir */
+                       }
+               }
+       }
+               

        machine_startup(args);
 }
 
        machine_startup(args);
 }
 

+/*
+ *             Routine:                ppc_init_cpu
+ *             Function:
+ */
+void

 ppc_init_cpu(
 ppc_init_cpu(

-       struct per_proc_info *proc_info)
+               struct per_proc_info    *proc_info) 

 {
 {

-       int i;
+       uint64_t scdata;

 
 

-       if(!(proc_info->next_savearea))                 /* Do we have a savearea set up already? */
-               proc_info->next_savearea = (savearea *)save_get_init(); /* Get a savearea  */
-       
-       cpu_init();
-
-       proc_info->pp_preemption_count = 1;
-       proc_info->pp_simple_lock_count = 0;
-       proc_info->pp_interrupt_level = 0;
+       proc_info->cpu_flags &= ~SleepState;

 
 

-       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();
+       if((BootProcInfo.pf.Available & pf64Bit) && !wcte) {    /* Should we disable the store gather timer? */
+               (void)ml_scom_read(GUSModeReg << 8, &scdata);   /* Get GUS mode register */
+               scdata = scdata | GUSMstgttoff;                                 /* Disable the NCU store gather timer */
+               (void)ml_scom_write(GUSModeReg << 8, scdata);   /* Get GUS mode register */

        }
 
        }
 

-       ppc_vm_cpu_init(proc_info);
-
-       ml_thrm_init();                                                 /* Start thermal monitoring on this processor */
-
+       cpu_init();
+       

        slave_main();
 }
        slave_main();
 }