2005-06-22 23:43:37 +00:00
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/*
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2005-11-01 01:08:37 +00:00
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* linux/arch/powerpc/platforms/cell/cell_setup.c
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2005-06-22 23:43:37 +00:00
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*
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* Copyright (C) 1995 Linus Torvalds
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* Adapted from 'alpha' version by Gary Thomas
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* Modified by Cort Dougan (cort@cs.nmt.edu)
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* Modified by PPC64 Team, IBM Corp
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2005-11-01 01:08:37 +00:00
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* Modified by Cell Team, IBM Deutschland Entwicklung GmbH
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2005-06-22 23:43:37 +00:00
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#undef DEBUG
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#include <linux/config.h>
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#include <linux/sched.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/stddef.h>
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#include <linux/unistd.h>
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#include <linux/slab.h>
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#include <linux/user.h>
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#include <linux/reboot.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/seq_file.h>
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#include <linux/root_dev.h>
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#include <linux/console.h>
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#include <asm/mmu.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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[PATCH] powerpc: Merge kexec
This patch merges, to some extent, the PPC32 and PPC64 kexec implementations.
We adopt the PPC32 approach of having ppc_md callbacks for the kexec functions.
The current PPC64 implementation becomes the "default" implementation for PPC64
which platforms can select if they need no special treatment.
I've added these default callbacks to pseries/maple/cell/powermac, this means
iSeries no longer supports kexec - but it never worked anyway.
I've renamed PPC32's machine_kexec_simple to default_machine_kexec, inline with
PPC64. Judging by the comments it might be better named machine_kexec_non_of,
or something, but at the moment it's the only implementation for PPC32 so it's
the "default".
Kexec requires machine_shutdown(), which is in machine_kexec.c on PPC32, but we
already have in setup-common.c on powerpc. All this does is call
ppc_md.nvram_sync, which only powermac implements, so instead make
machine_shutdown a ppc_md member and have it call core99_nvram_sync directly
on powermac.
I've also stuck relocate_kernel.S into misc_32.S for powerpc.
Built for ARCH=ppc, and 32 & 64 bit ARCH=powerpc, with KEXEC=y/n. Booted on
P5 LPAR and successfully kexec'ed.
Should apply on top of 493f25ef4087395891c99fcfe2c72e62e293e89f.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-14 12:35:00 +00:00
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#include <asm/kexec.h>
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2005-06-22 23:43:37 +00:00
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#include <asm/pgtable.h>
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#include <asm/prom.h>
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#include <asm/rtas.h>
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#include <asm/pci-bridge.h>
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#include <asm/iommu.h>
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#include <asm/dma.h>
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#include <asm/machdep.h>
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#include <asm/time.h>
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#include <asm/nvram.h>
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#include <asm/cputable.h>
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2005-09-27 16:50:25 +00:00
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#include <asm/ppc-pci.h>
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2005-10-10 12:50:37 +00:00
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#include <asm/irq.h>
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2005-06-22 23:43:37 +00:00
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2005-11-01 01:08:37 +00:00
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#include "interrupt.h"
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#include "iommu.h"
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2005-06-22 23:43:37 +00:00
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#ifdef DEBUG
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#define DBG(fmt...) udbg_printf(fmt)
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#else
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#define DBG(fmt...)
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#endif
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2005-11-01 01:08:37 +00:00
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void cell_show_cpuinfo(struct seq_file *m)
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2005-06-22 23:43:37 +00:00
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{
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struct device_node *root;
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const char *model = "";
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root = of_find_node_by_path("/");
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if (root)
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model = get_property(root, "model", NULL);
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2005-11-01 01:08:37 +00:00
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seq_printf(m, "machine\t\t: CHRP %s\n", model);
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2005-06-22 23:43:37 +00:00
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of_node_put(root);
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}
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2005-11-15 20:53:52 +00:00
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#ifdef CONFIG_SPARSEMEM
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static int __init find_spu_node_id(struct device_node *spe)
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{
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unsigned int *id;
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#ifdef CONFIG_NUMA
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struct device_node *cpu;
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cpu = spe->parent->parent;
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id = (unsigned int *)get_property(cpu, "node-id", NULL);
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#else
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id = NULL;
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#endif
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return id ? *id : 0;
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}
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static void __init cell_spuprop_present(struct device_node *spe,
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const char *prop, int early)
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{
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struct address_prop {
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unsigned long address;
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unsigned int len;
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} __attribute__((packed)) *p;
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int proplen;
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unsigned long start_pfn, end_pfn, pfn;
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int node_id;
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p = (void*)get_property(spe, prop, &proplen);
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WARN_ON(proplen != sizeof (*p));
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node_id = find_spu_node_id(spe);
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start_pfn = p->address >> PAGE_SHIFT;
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end_pfn = (p->address + p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
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/* We need to call memory_present *before* the call to sparse_init,
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but we can initialize the page structs only *after* that call.
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Thus, we're being called twice. */
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if (early)
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memory_present(node_id, start_pfn, end_pfn);
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else {
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/* As the pages backing SPU LS and I/O are outside the range
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of regular memory, their page structs were not initialized
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by free_area_init. Do it here instead. */
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for (pfn = start_pfn; pfn < end_pfn; pfn++) {
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struct page *page = pfn_to_page(pfn);
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set_page_links(page, ZONE_DMA, node_id, pfn);
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set_page_count(page, 0);
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reset_page_mapcount(page);
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SetPageReserved(page);
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INIT_LIST_HEAD(&page->lru);
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}
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}
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}
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static void __init cell_spumem_init(int early)
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{
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struct device_node *node;
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for (node = of_find_node_by_type(NULL, "spe");
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node; node = of_find_node_by_type(node, "spe")) {
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cell_spuprop_present(node, "local-store", early);
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cell_spuprop_present(node, "problem", early);
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cell_spuprop_present(node, "priv1", early);
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cell_spuprop_present(node, "priv2", early);
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}
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}
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#else
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static void __init cell_spumem_init(int early)
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{
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}
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#endif
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2005-11-01 01:08:37 +00:00
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static void cell_progress(char *s, unsigned short hex)
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2005-06-22 23:43:37 +00:00
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{
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printk("*** %04x : %s\n", hex, s ? s : "");
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}
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2005-11-01 01:08:37 +00:00
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static void __init cell_setup_arch(void)
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2005-06-22 23:43:37 +00:00
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{
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2005-06-22 23:43:43 +00:00
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ppc_md.init_IRQ = iic_init_IRQ;
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ppc_md.get_irq = iic_get_irq;
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2005-06-22 23:43:37 +00:00
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#ifdef CONFIG_SMP
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2005-11-01 01:08:37 +00:00
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smp_init_cell();
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2005-06-22 23:43:37 +00:00
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#endif
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/* init to some ~sane value until calibrate_delay() runs */
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loops_per_jiffy = 50000000;
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if (ROOT_DEV == 0) {
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printk("No ramdisk, default root is /dev/hda2\n");
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ROOT_DEV = Root_HDA2;
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}
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/* Find and initialize PCI host bridges */
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init_pci_config_tokens();
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find_and_init_phbs();
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2005-06-22 23:43:43 +00:00
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spider_init_IRQ();
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2005-06-22 23:43:37 +00:00
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#ifdef CONFIG_DUMMY_CONSOLE
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conswitchp = &dummy_con;
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#endif
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2005-11-01 01:08:37 +00:00
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mmio_nvram_init();
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2005-11-15 20:53:52 +00:00
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cell_spumem_init(0);
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2005-06-22 23:43:37 +00:00
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}
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/*
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* Early initialization. Relocation is on but do not reference unbolted pages
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*/
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2005-11-01 01:08:37 +00:00
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static void __init cell_init_early(void)
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2005-06-22 23:43:37 +00:00
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{
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2005-11-01 01:08:37 +00:00
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DBG(" -> cell_init_early()\n");
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2005-06-22 23:43:37 +00:00
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hpte_init_native();
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2005-11-01 01:08:37 +00:00
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cell_init_iommu();
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2005-06-22 23:43:37 +00:00
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2005-11-01 01:08:37 +00:00
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ppc64_interrupt_controller = IC_CELL_PIC;
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2005-06-22 23:43:37 +00:00
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2005-11-15 20:53:52 +00:00
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cell_spumem_init(1);
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2005-11-01 01:08:37 +00:00
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DBG(" <- cell_init_early()\n");
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2005-06-22 23:43:37 +00:00
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}
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2005-11-01 01:08:37 +00:00
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static int __init cell_probe(int platform)
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2005-06-22 23:43:37 +00:00
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{
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2005-11-01 01:08:37 +00:00
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if (platform != PLATFORM_CELL)
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2005-06-22 23:43:37 +00:00
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return 0;
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return 1;
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}
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2005-11-01 01:08:37 +00:00
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struct machdep_calls __initdata cell_md = {
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.probe = cell_probe,
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.setup_arch = cell_setup_arch,
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.init_early = cell_init_early,
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.show_cpuinfo = cell_show_cpuinfo,
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2005-06-22 23:43:37 +00:00
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.restart = rtas_restart,
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.power_off = rtas_power_off,
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.halt = rtas_halt,
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.get_boot_time = rtas_get_boot_time,
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.get_rtc_time = rtas_get_rtc_time,
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.set_rtc_time = rtas_set_rtc_time,
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.calibrate_decr = generic_calibrate_decr,
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2005-11-01 01:08:37 +00:00
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.progress = cell_progress,
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[PATCH] powerpc: Merge kexec
This patch merges, to some extent, the PPC32 and PPC64 kexec implementations.
We adopt the PPC32 approach of having ppc_md callbacks for the kexec functions.
The current PPC64 implementation becomes the "default" implementation for PPC64
which platforms can select if they need no special treatment.
I've added these default callbacks to pseries/maple/cell/powermac, this means
iSeries no longer supports kexec - but it never worked anyway.
I've renamed PPC32's machine_kexec_simple to default_machine_kexec, inline with
PPC64. Judging by the comments it might be better named machine_kexec_non_of,
or something, but at the moment it's the only implementation for PPC32 so it's
the "default".
Kexec requires machine_shutdown(), which is in machine_kexec.c on PPC32, but we
already have in setup-common.c on powerpc. All this does is call
ppc_md.nvram_sync, which only powermac implements, so instead make
machine_shutdown a ppc_md member and have it call core99_nvram_sync directly
on powermac.
I've also stuck relocate_kernel.S into misc_32.S for powerpc.
Built for ARCH=ppc, and 32 & 64 bit ARCH=powerpc, with KEXEC=y/n. Booted on
P5 LPAR and successfully kexec'ed.
Should apply on top of 493f25ef4087395891c99fcfe2c72e62e293e89f.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-14 12:35:00 +00:00
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#ifdef CONFIG_KEXEC
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.machine_kexec = default_machine_kexec,
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.machine_kexec_prepare = default_machine_kexec_prepare,
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2005-12-04 07:39:43 +00:00
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.machine_crash_shutdown = default_machine_crash_shutdown,
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[PATCH] powerpc: Merge kexec
This patch merges, to some extent, the PPC32 and PPC64 kexec implementations.
We adopt the PPC32 approach of having ppc_md callbacks for the kexec functions.
The current PPC64 implementation becomes the "default" implementation for PPC64
which platforms can select if they need no special treatment.
I've added these default callbacks to pseries/maple/cell/powermac, this means
iSeries no longer supports kexec - but it never worked anyway.
I've renamed PPC32's machine_kexec_simple to default_machine_kexec, inline with
PPC64. Judging by the comments it might be better named machine_kexec_non_of,
or something, but at the moment it's the only implementation for PPC32 so it's
the "default".
Kexec requires machine_shutdown(), which is in machine_kexec.c on PPC32, but we
already have in setup-common.c on powerpc. All this does is call
ppc_md.nvram_sync, which only powermac implements, so instead make
machine_shutdown a ppc_md member and have it call core99_nvram_sync directly
on powermac.
I've also stuck relocate_kernel.S into misc_32.S for powerpc.
Built for ARCH=ppc, and 32 & 64 bit ARCH=powerpc, with KEXEC=y/n. Booted on
P5 LPAR and successfully kexec'ed.
Should apply on top of 493f25ef4087395891c99fcfe2c72e62e293e89f.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-14 12:35:00 +00:00
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#endif
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2005-06-22 23:43:37 +00:00
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};
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