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Rev 3408 Rev 3672
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#include "ofwarch.h"
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#include "ofwarch.h"
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#include <align.h>
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#include <align.h>
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#include <string.h>
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#include <string.h>
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bootinfo_t bootinfo;
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bootinfo_t bootinfo;
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component_t components[COMPONENTS];
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component_t components[COMPONENTS];
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char *release = RELEASE;
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char *release = RELEASE;
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#ifdef REVISION
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#ifdef REVISION
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    char *timestamp = "\nBuilt on " TIMESTAMP;
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    char *timestamp = "\nBuilt on " TIMESTAMP;
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#else
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#else
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    char *timestamp = "";
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    char *timestamp = "";
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#endif
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#endif
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/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
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uint8_t subarchitecture;
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/**
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 * mask of the MID field inside the ICBUS_CONFIG register shifted by
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 * MID_SHIFT bits to the right
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 */
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uint16_t mid_mask;
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/** Print version information. */
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/** Print version information. */
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static void version_print(void)
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static void version_print(void)
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{
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{
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    printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
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    printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
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        "Copyright (c) 2006 HelenOS project\n",
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        "Copyright (c) 2006 HelenOS project\n",
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        release, revision, timestamp);
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        release, revision, timestamp);
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}
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}
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/* the lowest ID (read from the VER register) of some US3 CPU model */
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#define FIRST_US3_CPU   0x14
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/* the greatest ID (read from the VER register) of some US3 CPU model */
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#define LAST_US3_CPU    0x19
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/* UltraSPARC IIIi processor implementation code */
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#define US_IIIi_CODE    0x15
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/**
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 * Sets the global variables "subarchitecture" and "mid_mask" to
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 * correct values.
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 */
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static void detect_subarchitecture(void)
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{
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    uint64_t v;
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    asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
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    v = (v << 16) >> 48;
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    if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
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        subarchitecture = SUBARCH_US3;
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        if (v == US_IIIi_CODE)
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            mid_mask = (1 << 5) - 1;
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        else
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            mid_mask = (1 << 10) - 1;
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    } else if (v < FIRST_US3_CPU) {
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        subarchitecture = SUBARCH_US;
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        mid_mask = (1 << 5) - 1;
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    } else {
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        printf("\nThis CPU is not supported by HelenOS.");
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    }
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}
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void bootstrap(void)
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void bootstrap(void)
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{
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{
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    void *base = (void *) KERNEL_VIRTUAL_ADDRESS;
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    void *base = (void *) KERNEL_VIRTUAL_ADDRESS;
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    void *balloc_base;
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    void *balloc_base;
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    unsigned int top = 0;
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    unsigned int top = 0;
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    int i, j;
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    int i, j;
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    version_print();
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    version_print();
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    detect_subarchitecture();
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    init_components(components);
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    init_components(components);
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    if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
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    if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
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        printf("Error: unable to get start of physical memory.\n");
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        printf("Error: unable to get start of physical memory.\n");
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        halt();
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        halt();
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    if (!ofw_memmap(&bootinfo.memmap)) {
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    if (!ofw_memmap(&bootinfo.memmap)) {
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        printf("Error: unable to get memory map, halting.\n");
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        printf("Error: unable to get memory map, halting.\n");
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        halt();
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        halt();
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    }
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    }
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    if (bootinfo.memmap.total == 0) {
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    if (bootinfo.memmap.total == 0) {
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        printf("Error: no memory detected, halting.\n");
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        printf("Error: no memory detected, halting.\n");
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        halt();
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        halt();
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    }
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    }
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