mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 02:54:10 +07:00
7c0f6ba682
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
to do the replacement at the end of the merge window.
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
284 lines
6.7 KiB
C
284 lines
6.7 KiB
C
/* MN10300 Arch-specific initialisation
|
|
*
|
|
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
#include <linux/errno.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/unistd.h>
|
|
#include <linux/ptrace.h>
|
|
#include <linux/user.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/bootmem.h>
|
|
#include <linux/seq_file.h>
|
|
#include <linux/cpu.h>
|
|
#include <asm/processor.h>
|
|
#include <linux/console.h>
|
|
#include <linux/uaccess.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/io.h>
|
|
#include <asm/smp.h>
|
|
#include <proc/proc.h>
|
|
#include <asm/fpu.h>
|
|
#include <asm/sections.h>
|
|
|
|
struct mn10300_cpuinfo boot_cpu_data;
|
|
|
|
static char __initdata cmd_line[COMMAND_LINE_SIZE];
|
|
char redboot_command_line[COMMAND_LINE_SIZE] =
|
|
"console=ttyS0,115200 root=/dev/mtdblock3 rw";
|
|
|
|
char __initdata redboot_platform_name[COMMAND_LINE_SIZE];
|
|
|
|
static struct resource code_resource = {
|
|
.start = 0x100000,
|
|
.end = 0,
|
|
.name = "Kernel code",
|
|
};
|
|
|
|
static struct resource data_resource = {
|
|
.start = 0,
|
|
.end = 0,
|
|
.name = "Kernel data",
|
|
};
|
|
|
|
static unsigned long __initdata phys_memory_base;
|
|
static unsigned long __initdata phys_memory_end;
|
|
static unsigned long __initdata memory_end;
|
|
unsigned long memory_size;
|
|
|
|
struct thread_info *__current_ti = &init_thread_union.thread_info;
|
|
struct task_struct *__current = &init_task;
|
|
|
|
#define mn10300_known_cpus 5
|
|
static const char *const mn10300_cputypes[] = {
|
|
"am33-1",
|
|
"am33-2",
|
|
"am34-1",
|
|
"am33-3",
|
|
"am34-2",
|
|
"unknown"
|
|
};
|
|
|
|
/*
|
|
* Pick out the memory size. We look for mem=size,
|
|
* where size is "size[KkMm]"
|
|
*/
|
|
static int __init early_mem(char *p)
|
|
{
|
|
memory_size = memparse(p, &p);
|
|
|
|
if (memory_size == 0)
|
|
panic("Memory size not known\n");
|
|
|
|
return 0;
|
|
}
|
|
early_param("mem", early_mem);
|
|
|
|
/*
|
|
* architecture specific setup
|
|
*/
|
|
void __init setup_arch(char **cmdline_p)
|
|
{
|
|
unsigned long bootmap_size;
|
|
unsigned long kstart_pfn, start_pfn, free_pfn, end_pfn;
|
|
|
|
cpu_init();
|
|
unit_setup();
|
|
smp_init_cpus();
|
|
|
|
/* save unparsed command line copy for /proc/cmdline */
|
|
strlcpy(boot_command_line, redboot_command_line, COMMAND_LINE_SIZE);
|
|
|
|
/* populate cmd_line too for later use, preserving boot_command_line */
|
|
strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
|
|
*cmdline_p = cmd_line;
|
|
|
|
parse_early_param();
|
|
|
|
memory_end = (unsigned long) CONFIG_KERNEL_RAM_BASE_ADDRESS +
|
|
memory_size;
|
|
if (memory_end > phys_memory_end)
|
|
memory_end = phys_memory_end;
|
|
|
|
init_mm.start_code = (unsigned long)&_text;
|
|
init_mm.end_code = (unsigned long) &_etext;
|
|
init_mm.end_data = (unsigned long) &_edata;
|
|
init_mm.brk = (unsigned long) &_end;
|
|
|
|
code_resource.start = virt_to_bus(&_text);
|
|
code_resource.end = virt_to_bus(&_etext)-1;
|
|
data_resource.start = virt_to_bus(&_etext);
|
|
data_resource.end = virt_to_bus(&_edata)-1;
|
|
|
|
start_pfn = (CONFIG_KERNEL_RAM_BASE_ADDRESS >> PAGE_SHIFT);
|
|
kstart_pfn = PFN_UP(__pa(&_text));
|
|
free_pfn = PFN_UP(__pa(&_end));
|
|
end_pfn = PFN_DOWN(__pa(memory_end));
|
|
|
|
bootmap_size = init_bootmem_node(&contig_page_data,
|
|
free_pfn,
|
|
start_pfn,
|
|
end_pfn);
|
|
|
|
if (kstart_pfn > start_pfn)
|
|
free_bootmem(PFN_PHYS(start_pfn),
|
|
PFN_PHYS(kstart_pfn - start_pfn));
|
|
|
|
free_bootmem(PFN_PHYS(free_pfn),
|
|
PFN_PHYS(end_pfn - free_pfn));
|
|
|
|
/* If interrupt vector table is in main ram, then we need to
|
|
reserve the page it is occupying. */
|
|
if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS &&
|
|
CONFIG_INTERRUPT_VECTOR_BASE < memory_end)
|
|
reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE,
|
|
BOOTMEM_DEFAULT);
|
|
|
|
reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size,
|
|
BOOTMEM_DEFAULT);
|
|
|
|
#ifdef CONFIG_VT
|
|
#if defined(CONFIG_VGA_CONSOLE)
|
|
conswitchp = &vga_con;
|
|
#elif defined(CONFIG_DUMMY_CONSOLE)
|
|
conswitchp = &dummy_con;
|
|
#endif
|
|
#endif
|
|
|
|
paging_init();
|
|
}
|
|
|
|
/*
|
|
* perform CPU initialisation
|
|
*/
|
|
void __init cpu_init(void)
|
|
{
|
|
unsigned long cpurev = CPUREV, type;
|
|
|
|
type = (CPUREV & CPUREV_TYPE) >> CPUREV_TYPE_S;
|
|
if (type > mn10300_known_cpus)
|
|
type = mn10300_known_cpus;
|
|
|
|
printk(KERN_INFO "Panasonic %s, rev %ld\n",
|
|
mn10300_cputypes[type],
|
|
(cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S);
|
|
|
|
get_mem_info(&phys_memory_base, &memory_size);
|
|
phys_memory_end = phys_memory_base + memory_size;
|
|
|
|
fpu_init_state();
|
|
}
|
|
|
|
static struct cpu cpu_devices[NR_CPUS];
|
|
|
|
static int __init topology_init(void)
|
|
{
|
|
int i;
|
|
|
|
for_each_present_cpu(i)
|
|
register_cpu(&cpu_devices[i], i);
|
|
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(topology_init);
|
|
|
|
/*
|
|
* Get CPU information for use by the procfs.
|
|
*/
|
|
static int show_cpuinfo(struct seq_file *m, void *v)
|
|
{
|
|
#ifdef CONFIG_SMP
|
|
struct mn10300_cpuinfo *c = v;
|
|
unsigned long cpu_id = c - cpu_data;
|
|
unsigned long cpurev = c->type, type, icachesz, dcachesz;
|
|
#else /* CONFIG_SMP */
|
|
unsigned long cpu_id = 0;
|
|
unsigned long cpurev = CPUREV, type, icachesz, dcachesz;
|
|
#endif /* CONFIG_SMP */
|
|
|
|
#ifdef CONFIG_SMP
|
|
if (!cpu_online(cpu_id))
|
|
return 0;
|
|
#endif
|
|
|
|
type = (cpurev & CPUREV_TYPE) >> CPUREV_TYPE_S;
|
|
if (type > mn10300_known_cpus)
|
|
type = mn10300_known_cpus;
|
|
|
|
icachesz =
|
|
((cpurev & CPUREV_ICWAY ) >> CPUREV_ICWAY_S) *
|
|
((cpurev & CPUREV_ICSIZE) >> CPUREV_ICSIZE_S) *
|
|
1024;
|
|
|
|
dcachesz =
|
|
((cpurev & CPUREV_DCWAY ) >> CPUREV_DCWAY_S) *
|
|
((cpurev & CPUREV_DCSIZE) >> CPUREV_DCSIZE_S) *
|
|
1024;
|
|
|
|
seq_printf(m,
|
|
"processor : %ld\n"
|
|
"vendor_id : " PROCESSOR_VENDOR_NAME "\n"
|
|
"cpu core : %s\n"
|
|
"cpu rev : %lu\n"
|
|
"model name : " PROCESSOR_MODEL_NAME "\n"
|
|
"icache size: %lu\n"
|
|
"dcache size: %lu\n",
|
|
cpu_id,
|
|
mn10300_cputypes[type],
|
|
(cpurev & CPUREV_REVISION) >> CPUREV_REVISION_S,
|
|
icachesz,
|
|
dcachesz
|
|
);
|
|
|
|
seq_printf(m,
|
|
"ioclk speed: %lu.%02luMHz\n"
|
|
"bogomips : %lu.%02lu\n\n",
|
|
MN10300_IOCLK / 1000000,
|
|
(MN10300_IOCLK / 10000) % 100,
|
|
#ifdef CONFIG_SMP
|
|
c->loops_per_jiffy / (500000 / HZ),
|
|
(c->loops_per_jiffy / (5000 / HZ)) % 100
|
|
#else /* CONFIG_SMP */
|
|
loops_per_jiffy / (500000 / HZ),
|
|
(loops_per_jiffy / (5000 / HZ)) % 100
|
|
#endif /* CONFIG_SMP */
|
|
);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void *c_start(struct seq_file *m, loff_t *pos)
|
|
{
|
|
return *pos < NR_CPUS ? cpu_data + *pos : NULL;
|
|
}
|
|
|
|
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
|
|
{
|
|
++*pos;
|
|
return c_start(m, pos);
|
|
}
|
|
|
|
static void c_stop(struct seq_file *m, void *v)
|
|
{
|
|
}
|
|
|
|
const struct seq_operations cpuinfo_op = {
|
|
.start = c_start,
|
|
.next = c_next,
|
|
.stop = c_stop,
|
|
.show = show_cpuinfo,
|
|
};
|