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Diffstat (limited to 'c/src/lib/libbsp/sparc64/shared/helenos/boot/sparc64/loader/main.c')
-rw-r--r--c/src/lib/libbsp/sparc64/shared/helenos/boot/sparc64/loader/main.c441
1 files changed, 0 insertions, 441 deletions
diff --git a/c/src/lib/libbsp/sparc64/shared/helenos/boot/sparc64/loader/main.c b/c/src/lib/libbsp/sparc64/shared/helenos/boot/sparc64/loader/main.c
deleted file mode 100644
index 75579ed44c..0000000000
--- a/c/src/lib/libbsp/sparc64/shared/helenos/boot/sparc64/loader/main.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * Copyright (c) 2005 Martin Decky
- * Copyright (c) 2006 Jakub Jermar
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - 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.
- * - The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
- */
-
-/*
- * Modifications are made to switch to using printk rather than printf,
- * and to remove portions of the HelenOS bootstrap process that are
- * unnecessary on RTEMS. The removed code is elided with #if 0 ... #endif
- * blocks.
- *
- * Removes some header files. Adds back some missing defines.
- */
-
-#define RTEMS
-
-#include <bsp.h>
-#include <rtems/bspIo.h>
-#include <inttypes.h>
-#include <string.h>
-
-#include <boot/main.h>
-#include <boot/balloc.h>
-#include <boot/ofw.h>
-#include <boot/ofw_tree.h>
-#include <boot/ofwarch.h>
-#include <boot/align.h>
-
-#if 0
-#include "asm.h"
-#include <printf.h>
-#include "_components.h"
-#include <macros.h>
-#include <string.h>
-#include <memstr.h>
-#endif
-
-#include <asm.h>
-
-#if 0
-#define PAGE_WIDTH 14
-#define PAGE_SIZE (1 << PAGE_WIDTH)
-#endif
-
-static bootinfo_t bootinfo;
-#if 0
-static component_t components[COMPONENTS];
-static char *release = STRING(RELEASE);
-
-#ifdef REVISION
- static char *revision = ", revision " STRING(REVISION);
-#else
- static char *revision = "";
-#endif
-
-#ifdef TIMESTAMP
- static char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
-#else
- static char *timestamp = "";
-#endif
-#endif
-
-#if 0
-/** UltraSPARC subarchitecture - 1 for US, 3 for US3, 0 for other */
-static uint8_t subarchitecture = 0;
-#endif
-
-#if 0
-/**
- * mask of the MID field inside the ICBUS_CONFIG register shifted by
- * MID_SHIFT bits to the right
- */
-static uint16_t mid_mask;
-#endif
-
-#if 0
-/** Print version information. */
-static void version_print(void)
-{
- printk("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
- "Copyright (c) 2006 HelenOS project\n",
- release, revision, timestamp);
-}
-#endif
-
-/* the lowest ID (read from the VER register) of some US3 CPU model */
-#define FIRST_US3_CPU 0x14
-
-/* the greatest ID (read from the VER register) of some US3 CPU model */
-#define LAST_US3_CPU 0x19
-
-/* UltraSPARC IIIi processor implementation code */
-#define US_IIIi_CODE 0x15
-
-/* max. length of the "compatible" property of the root node */
-#define COMPATIBLE_PROP_MAXLEN 64
-
-/*
- * HelenOS bootloader will use these constants to distinguish particular
- * UltraSPARC architectures
- */
-#define COMPATIBLE_SUN4U 10
-#define COMPATIBLE_SUN4V 20
-
-/** US architecture. COMPATIBLE_SUN4U for sun4v, COMPATIBLE_SUN4V for sun4u */
-static uint8_t architecture;
-
-/**
- * Detects the UltraSPARC architecture (sun4u and sun4v currently supported)
- * by inspecting the property called "compatible" in the OBP root node.
- */
-static void detect_architecture(void)
-{
- phandle root = ofw_find_device("/");
- char compatible[COMPATIBLE_PROP_MAXLEN];
-
- if (ofw_get_property(root, "compatible", compatible,
- COMPATIBLE_PROP_MAXLEN) <= 0) {
- printk("Unable to determine architecture, default: sun4u.\n");
- architecture = COMPATIBLE_SUN4U;
- return;
- }
-
- if (strcmp(compatible, "sun4v") == 0) {
- architecture = COMPATIBLE_SUN4V;
- } else {
- /*
- * As not all sun4u machines have "sun4u" in their "compatible"
- * OBP property (e.g. Serengeti's OBP "compatible" property is
- * "SUNW,Serengeti"), we will by default fallback to sun4u if
- * an unknown value of the "compatible" property is encountered.
- */
- architecture = COMPATIBLE_SUN4U;
- }
-}
-
-#if 0
-/**
- * Detects the subarchitecture (US, US3) of the sun4u
- * processor. Sets the global variables "subarchitecture" and "mid_mask" to
- * correct values.
- */
-static void detect_subarchitecture(void)
-{
- uint64_t v;
- asm volatile (
- "rdpr %%ver, %0\n"
- : "=r" (v)
- );
-
- v = (v << 16) >> 48;
- if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
- subarchitecture = SUBARCH_US3;
- if (v == US_IIIi_CODE)
- mid_mask = (1 << 5) - 1;
- else
- mid_mask = (1 << 10) - 1;
- } else if (v < FIRST_US3_CPU) {
- subarchitecture = SUBARCH_US;
- mid_mask = (1 << 5) - 1;
- } else
- printk("\nThis CPU is not supported by HelenOS.");
-}
-#endif
-
-#if 0
-/**
- * Performs sun4u-specific initialization. The components are expected
- * to be already copied and boot allocator initialized.
- *
- * @param base kernel base virtual address
- * @param top virtual address above which the boot allocator
- * can make allocations
- */
-static void bootstrap_sun4u(void *base, unsigned int top)
-{
- void *balloc_base;
- /*
- * Claim and map the physical memory for the boot allocator.
- * Initialize the boot allocator.
- */
- balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
- (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
- BALLOC_MAX_SIZE);
- (void) ofw_map(bootinfo.physmem_start + balloc_base, balloc_base,
- BALLOC_MAX_SIZE, -1);
- balloc_init(&bootinfo.ballocs, (uintptr_t) balloc_base,
- (uintptr_t) balloc_base);
-#if 0
- printf("Setting up screens...");
- ofw_setup_screens();
- printf("done.\n");
-#endif
-#if 0
- printf("Canonizing OpenFirmware device tree...");
-#endif
- bootinfo.ofw_root = ofw_tree_build();
-#if 0
- printf("done.\n");
-#endif
-#if 0
-#ifdef CONFIG_AP
- printf("Checking for secondary processors...");
- if (!ofw_cpu(mid_mask, bootinfo.physmem_start))
- printf("Error: unable to get CPU properties\n");
- printf("done.\n");
-#endif
-#endif
-}
-#endif
-
-#if 0
-/**
- * * Performs sun4v-specific initialization. The components are expected
- * * to be already copied and boot allocator initialized.
- * */
-static void bootstrap_sun4v(void)
-{
- /*
- * When SILO booted, the OBP had established a virtual to physical
- * memory mapping. This mapping is not an identity (because the
- * physical memory starts on non-zero address) - this is not
- * surprising. But! The mapping even does not map virtual address
- * 0 onto the starting address of the physical memory, but onto an
- * address which is 0x400000 bytes higher. The reason is that the
- * OBP had already used the memory just at the beginning of the
- * physical memory, so that memory cannot be used by SILO (nor
- * bootloader). As for now, we solve it by a nasty workaround:
- * we pretend that the physical memory starts 0x400000 bytes further
- * than it actually does (and hence pretend that the physical memory
- * is 0x400000 bytes smaller). Of course, the value 0x400000 will most
- * probably depend on the machine and OBP version (the workaround now
- * works on Simics). A solution would be to inspect the "available"
- * property of the "/memory" node to find out which parts of memory
- * are used by OBP and redesign the algorithm of copying
- * kernel/init tasks/ramdisk from the bootable image to memory
- * (which we must do anyway because of issues with claiming the memory
- * on Serengeti).
- */
- bootinfo.physmem_start += 0x400000;
- bootinfo.memmap.zones[0].start += 0x400000;
- bootinfo.memmap.zones[0].size -= 0x400000;
-#if 0
- printf("The sun4v init finished.");
-#endif
-}
-#endif
-
-void bootstrap(void)
-{
-#if 0
- void *base = (void *) KERNEL_VIRTUAL_ADDRESS;
- unsigned int top = 0;
- unsigned int i;
- unsigned int j;
-#endif
-
- detect_architecture();
-#if 0
- init_components(components);
-#endif
-
- if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
- printk("Error: unable to get start of physical memory.\n");
- halt();
- }
-
- if (!ofw_memmap(&bootinfo.memmap)) {
- printk("Error: unable to get memory map, halting.\n");
- halt();
- }
-
- if (bootinfo.memmap.total == 0) {
- printk("Error: no memory detected, halting.\n");
- halt();
- }
-
- /*
- * SILO for some reason adds 0x400000 and subtracts
- * bootinfo.physmem_start to/from silo_ramdisk_image.
- * We just need plain physical address so we fix it up.
- */
- if (silo_ramdisk_image) {
- silo_ramdisk_image += bootinfo.physmem_start;
- silo_ramdisk_image -= 0x400000;
-
- /* Install 1:1 mapping for the RAM disk. */
- if (ofw_map((void *) ((uintptr_t) silo_ramdisk_image),
- (void *) ((uintptr_t) silo_ramdisk_image),
- silo_ramdisk_size, -1) != 0) {
- printk("Failed to map RAM disk.\n");
- halt();
- }
- }
-
- printk("\nMemory statistics (total %d MB, starting at %" PRIxPTR ")\n",
- bootinfo.memmap.total >> 20, bootinfo.physmem_start);
- printk(" %x: kernel entry point\n", KERNEL_VIRTUAL_ADDRESS);
- printk(" %p: boot info structure\n", &bootinfo);
-
-#if 0
- /*
- * Figure out destination address for each component.
- * In this phase, we don't copy the components yet because we want to
- * to be careful not to overwrite anything, especially the components
- * which haven't been copied yet.
- */
- bootinfo.taskmap.count = 0;
- for (i = 0; i < COMPONENTS; i++) {
- printf(" %P: %s image (size %d bytes)\n", components[i].start,
- components[i].name, components[i].size);
- top = ALIGN_UP(top, PAGE_SIZE);
- if (i > 0) {
- if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
- printf("Skipping superfluous components.\n");
- break;
- }
-
- bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
- base + top;
- bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
- components[i].size;
- strncpy(bootinfo.taskmap.tasks[
- bootinfo.taskmap.count].name, components[i].name,
- BOOTINFO_TASK_NAME_BUFLEN);
- bootinfo.taskmap.count++;
- }
- top += components[i].size;
- }
-
- printf("\n");
-
- /* Do not consider RAM disk */
- j = bootinfo.taskmap.count - 1;
-
- if (silo_ramdisk_image) {
- /* Treat the RAM disk as the last bootinfo task. */
- if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
- printf("Skipping RAM disk.\n");
- goto skip_ramdisk;
- }
-
- top = ALIGN_UP(top, PAGE_SIZE);
- bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
- base + top;
- bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
- silo_ramdisk_size;
- bootinfo.taskmap.count++;
- printf("Copying RAM disk...");
-
- /*
- * Claim and map the whole ramdisk as it may exceed the area
- * given to us by SILO.
- */
- (void) ofw_claim_phys(base + top, silo_ramdisk_size);
- (void) ofw_map(bootinfo.physmem_start + base + top, base + top,
- silo_ramdisk_size, -1);
- memmove(base + top, (void *) ((uintptr_t) silo_ramdisk_image),
- silo_ramdisk_size);
-
- printf("done.\n");
- top += silo_ramdisk_size;
- }
-skip_ramdisk:
-
- /*
- * Now we can proceed to copy the components. We do it in reverse order
- * so that we don't overwrite anything even if the components overlap
- * with base.
- */
- printf("Copying tasks...");
- for (i = COMPONENTS - 1; i > 0; i--, j--) {
- printf("%s ", components[i].name);
-
- /*
- * At this point, we claim the physical memory that we are
- * going to use. We should be safe in case of the virtual
- * address space because the OpenFirmware, according to its
- * SPARC binding, should restrict its use of virtual memory
- * to addresses from [0xffd00000; 0xffefffff] and
- * [0xfe000000; 0xfeffffff].
- *
- * XXX We don't map this piece of memory. We simply rely on
- * SILO to have it done for us already in this case.
- */
- (void) ofw_claim_phys(bootinfo.physmem_start +
- bootinfo.taskmap.tasks[j].addr,
- ALIGN_UP(components[i].size, PAGE_SIZE));
-
- memcpy((void *) bootinfo.taskmap.tasks[j].addr,
- components[i].start, components[i].size);
-
- }
- printf(".\n");
-
- printf("Copying kernel...");
- (void) ofw_claim_phys(bootinfo.physmem_start + base,
- ALIGN_UP(components[0].size, PAGE_SIZE));
- memcpy(base, components[0].start, components[0].size);
- printf("done.\n");
-
- /* perform architecture-specific initialization */
- if (architecture == COMPATIBLE_SUN4U) {
- bootstrap_sun4u(base, top);
- } else if (architecture == COMPATIBLE_SUN4V) {
- bootstrap_sun4v();
- } else {
- printf("Unknown architecture.\n");
- halt();
- }
-
- printf("Booting the kernel...\n");
- jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
- bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
- sizeof(bootinfo), subarchitecture);
-#endif
-}
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