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65fddcfca8
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include of the latter in the middle of asm includes. Fix this up with the aid of the below script and manual adjustments here and there. import sys import re if len(sys.argv) is not 3: print "USAGE: %s <file> <header>" % (sys.argv[0]) sys.exit(1) hdr_to_move="#include <linux/%s>" % sys.argv[2] moved = False in_hdrs = False with open(sys.argv[1], "r") as f: lines = f.readlines() for _line in lines: line = _line.rstrip(' ') if line == hdr_to_move: continue if line.startswith("#include <linux/"): in_hdrs = True elif not moved and in_hdrs: moved = True print hdr_to_move print line Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-4-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
229 lines
5.3 KiB
C
229 lines
5.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Common prep/pmac/chrp boot and setup code.
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/sched.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/reboot.h>
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#include <linux/delay.h>
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#include <linux/initrd.h>
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#include <linux/tty.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/cpu.h>
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#include <linux/console.h>
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#include <linux/memblock.h>
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#include <linux/export.h>
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#include <linux/nvram.h>
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#include <linux/pgtable.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/processor.h>
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#include <asm/setup.h>
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#include <asm/smp.h>
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#include <asm/elf.h>
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#include <asm/cputable.h>
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#include <asm/bootx.h>
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#include <asm/btext.h>
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#include <asm/machdep.h>
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#include <linux/uaccess.h>
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#include <asm/pmac_feature.h>
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#include <asm/sections.h>
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#include <asm/nvram.h>
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#include <asm/xmon.h>
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#include <asm/time.h>
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#include <asm/serial.h>
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#include <asm/udbg.h>
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#include <asm/code-patching.h>
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#include <asm/cpu_has_feature.h>
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#include <asm/asm-prototypes.h>
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#include <asm/kdump.h>
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#include <asm/feature-fixups.h>
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#include <asm/early_ioremap.h>
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#include "setup.h"
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#define DBG(fmt...)
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extern void bootx_init(unsigned long r4, unsigned long phys);
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int boot_cpuid_phys;
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EXPORT_SYMBOL_GPL(boot_cpuid_phys);
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int smp_hw_index[NR_CPUS];
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EXPORT_SYMBOL(smp_hw_index);
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unsigned int DMA_MODE_READ;
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unsigned int DMA_MODE_WRITE;
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EXPORT_SYMBOL(DMA_MODE_READ);
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EXPORT_SYMBOL(DMA_MODE_WRITE);
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/*
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* This is run before start_kernel(), the kernel has been relocated
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* and we are running with enough of the MMU enabled to have our
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* proper kernel virtual addresses
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*
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* We do the initial parsing of the flat device-tree and prepares
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* for the MMU to be fully initialized.
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*/
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notrace void __init machine_init(u64 dt_ptr)
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{
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struct ppc_inst *addr = (struct ppc_inst *)patch_site_addr(&patch__memset_nocache);
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struct ppc_inst insn;
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/* Configure static keys first, now that we're relocated. */
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setup_feature_keys();
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early_ioremap_init();
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/* Enable early debugging if any specified (see udbg.h) */
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udbg_early_init();
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patch_instruction_site(&patch__memcpy_nocache, ppc_inst(PPC_INST_NOP));
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create_cond_branch(&insn, addr, branch_target(addr), 0x820000);
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patch_instruction(addr, insn); /* replace b by bne cr0 */
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/* Do some early initialization based on the flat device tree */
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early_init_devtree(__va(dt_ptr));
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early_init_mmu();
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setup_kdump_trampoline();
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}
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/* Checks "l2cr=xxxx" command-line option */
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static int __init ppc_setup_l2cr(char *str)
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{
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if (cpu_has_feature(CPU_FTR_L2CR)) {
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unsigned long val = simple_strtoul(str, NULL, 0);
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printk(KERN_INFO "l2cr set to %lx\n", val);
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_set_L2CR(0); /* force invalidate by disable cache */
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_set_L2CR(val); /* and enable it */
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}
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return 1;
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}
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__setup("l2cr=", ppc_setup_l2cr);
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/* Checks "l3cr=xxxx" command-line option */
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static int __init ppc_setup_l3cr(char *str)
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{
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if (cpu_has_feature(CPU_FTR_L3CR)) {
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unsigned long val = simple_strtoul(str, NULL, 0);
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printk(KERN_INFO "l3cr set to %lx\n", val);
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_set_L3CR(val); /* and enable it */
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}
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return 1;
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}
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__setup("l3cr=", ppc_setup_l3cr);
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static int __init ppc_init(void)
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{
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/* clear the progress line */
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if (ppc_md.progress)
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ppc_md.progress(" ", 0xffff);
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/* call platform init */
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if (ppc_md.init != NULL) {
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ppc_md.init();
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}
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return 0;
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}
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arch_initcall(ppc_init);
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static void *__init alloc_stack(void)
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{
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void *ptr = memblock_alloc(THREAD_SIZE, THREAD_ALIGN);
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if (!ptr)
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panic("cannot allocate %d bytes for stack at %pS\n",
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THREAD_SIZE, (void *)_RET_IP_);
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return ptr;
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}
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void __init irqstack_early_init(void)
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{
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unsigned int i;
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if (IS_ENABLED(CONFIG_VMAP_STACK))
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return;
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/* interrupt stacks must be in lowmem, we get that for free on ppc32
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* as the memblock is limited to lowmem by default */
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for_each_possible_cpu(i) {
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softirq_ctx[i] = alloc_stack();
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hardirq_ctx[i] = alloc_stack();
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}
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}
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#ifdef CONFIG_VMAP_STACK
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void *emergency_ctx[NR_CPUS] __ro_after_init;
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void __init emergency_stack_init(void)
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{
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unsigned int i;
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for_each_possible_cpu(i)
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emergency_ctx[i] = alloc_stack();
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}
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#endif
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#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
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void __init exc_lvl_early_init(void)
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{
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unsigned int i, hw_cpu;
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/* interrupt stacks must be in lowmem, we get that for free on ppc32
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* as the memblock is limited to lowmem by MEMBLOCK_REAL_LIMIT */
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for_each_possible_cpu(i) {
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#ifdef CONFIG_SMP
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hw_cpu = get_hard_smp_processor_id(i);
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#else
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hw_cpu = 0;
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#endif
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critirq_ctx[hw_cpu] = alloc_stack();
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#ifdef CONFIG_BOOKE
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dbgirq_ctx[hw_cpu] = alloc_stack();
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mcheckirq_ctx[hw_cpu] = alloc_stack();
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#endif
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}
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}
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#endif
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void __init setup_power_save(void)
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{
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#ifdef CONFIG_PPC_BOOK3S_32
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if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
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cpu_has_feature(CPU_FTR_CAN_NAP))
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ppc_md.power_save = ppc6xx_idle;
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#endif
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#ifdef CONFIG_E500
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if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
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cpu_has_feature(CPU_FTR_CAN_NAP))
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ppc_md.power_save = e500_idle;
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#endif
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}
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__init void initialize_cache_info(void)
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{
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/*
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* Set cache line size based on type of cpu as a default.
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* Systems with OF can look in the properties on the cpu node(s)
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* for a possibly more accurate value.
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*/
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dcache_bsize = cur_cpu_spec->dcache_bsize;
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icache_bsize = cur_cpu_spec->icache_bsize;
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ucache_bsize = 0;
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if (IS_ENABLED(CONFIG_PPC_BOOK3S_601) || IS_ENABLED(CONFIG_E200))
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ucache_bsize = icache_bsize = dcache_bsize;
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}
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