Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-03 17:41:22 +00:00
Code Issues Packages Projects Releases Wiki Activity
80081b3391
linux/arch/sparc/kernel/setup_64.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

716 lines
17 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/sparc64/kernel/setup.c
*
* Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#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 <asm/smp.h>
#include <linux/user.h>
#include <linux/screen_info.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/syscalls.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/inet.h>
#include <linux/console.h>
#include <linux/root_dev.h>
#include <linux/interrupt.h>
#include <linux/cpu.h>
#include <linux/initrd.h>
#include <linux/module.h>
#include <linux/start_kernel.h>
#include <linux/bootmem.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/oplib.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/idprom.h>
#include <asm/head.h>
#include <asm/starfire.h>
#include <asm/mmu_context.h>
#include <asm/timer.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/mmu.h>
#include <asm/ns87303.h>
#include <asm/btext.h>
#include <asm/elf.h>
#include <asm/mdesc.h>
#include <asm/cacheflush.h>
#include <asm/dma.h>
#include <asm/irq.h>
#ifdef CONFIG_IP_PNP
#include <net/ipconfig.h>
#endif
#include "entry.h"
#include "kernel.h"
/* Used to synchronize accesses to NatSemi SUPER I/O chip configure
* operations in asm/ns87303.h
*/
DEFINE_SPINLOCK(ns87303_lock);
EXPORT_SYMBOL(ns87303_lock);
struct screen_info screen_info = {
0, 0, /* orig-x, orig-y */
0, /* unused */
0, /* orig-video-page */
0, /* orig-video-mode */
128, /* orig-video-cols */
0, 0, 0, /* unused, ega_bx, unused */
54, /* orig-video-lines */
0, /* orig-video-isVGA */
16 /* orig-video-points */
};
static void
prom_console_write(struct console *con, const char *s, unsigned int n)
{
prom_write(s, n);
}
/* Exported for mm/init.c:paging_init. */
unsigned long cmdline_memory_size = 0;
static struct console prom_early_console = {
.name = "earlyprom",
.write = prom_console_write,
.flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
.index = -1,
};
/*
* Process kernel command line switches that are specific to the
* SPARC or that require special low-level processing.
*/
static void __init process_switch(char c)
{
switch (c) {
case 'd':
case 's':
break;
case 'h':
prom_printf("boot_flags_init: Halt!\n");
prom_halt();
break;
case 'p':
prom_early_console.flags &= ~CON_BOOT;
break;
case 'P':
/* Force UltraSPARC-III P-Cache on. */
if (tlb_type != cheetah) {
printk("BOOT: Ignoring P-Cache force option.\n");
break;
}
cheetah_pcache_forced_on = 1;
add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);
cheetah_enable_pcache();
break;
default:
printk("Unknown boot switch (-%c)\n", c);
break;
}
}
static void __init boot_flags_init(char *commands)
{
while (*commands) {
/* Move to the start of the next "argument". */
while (*commands == ' ')
commands++;
/* Process any command switches, otherwise skip it. */
if (*commands == '\0')
break;
if (*commands == '-') {
commands++;
while (*commands && *commands != ' ')
process_switch(*commands++);
continue;
}
if (!strncmp(commands, "mem=", 4))
cmdline_memory_size = memparse(commands + 4, &commands);
while (*commands && *commands != ' ')
commands++;
}
}
extern unsigned short root_flags;
extern unsigned short root_dev;
extern unsigned short ram_flags;
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
extern int root_mountflags;
char reboot_command[COMMAND_LINE_SIZE];
static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
static void __init per_cpu_patch(void)
{
struct cpuid_patch_entry *p;
unsigned long ver;
int is_jbus;
if (tlb_type == spitfire && !this_is_starfire)
return;
is_jbus = 0;
if (tlb_type != hypervisor) {
__asm__ ("rdpr %%ver, %0" : "=r" (ver));
is_jbus = ((ver >> 32UL) == __JALAPENO_ID ||
(ver >> 32UL) == __SERRANO_ID);
}
p = &__cpuid_patch;
while (p < &__cpuid_patch_end) {
unsigned long addr = p->addr;
unsigned int *insns;
switch (tlb_type) {
case spitfire:
insns = &p->starfire[0];
break;
case cheetah:
case cheetah_plus:
if (is_jbus)
insns = &p->cheetah_jbus[0];
else
insns = &p->cheetah_safari[0];
break;
case hypervisor:
insns = &p->sun4v[0];
break;
default:
prom_printf("Unknown cpu type, halting.\n");
prom_halt();
}
*(unsigned int *) (addr + 0) = insns[0];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 0));
*(unsigned int *) (addr + 4) = insns[1];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 4));
*(unsigned int *) (addr + 8) = insns[2];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 8));
*(unsigned int *) (addr + 12) = insns[3];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 12));
p++;
}
}
void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *start,
struct sun4v_1insn_patch_entry *end)
{
while (start < end) {
unsigned long addr = start->addr;
*(unsigned int *) (addr + 0) = start->insn;
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 0));
start++;
}
}
void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *start,
struct sun4v_2insn_patch_entry *end)
{
while (start < end) {
unsigned long addr = start->addr;
*(unsigned int *) (addr + 0) = start->insns[0];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 0));
*(unsigned int *) (addr + 4) = start->insns[1];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 4));
start++;
}
}
void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *start,
struct sun4v_2insn_patch_entry *end)
{
while (start < end) {
unsigned long addr = start->addr;
*(unsigned int *) (addr + 0) = start->insns[0];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 0));
*(unsigned int *) (addr + 4) = start->insns[1];
wmb();
__asm__ __volatile__("flush %0" : : "r" (addr + 4));
start++;
}
}
static void __init sun4v_patch(void)
{
extern void sun4v_hvapi_init(void);
if (tlb_type != hypervisor)
return;
sun4v_patch_1insn_range(&__sun4v_1insn_patch,
&__sun4v_1insn_patch_end);
sun4v_patch_2insn_range(&__sun4v_2insn_patch,
&__sun4v_2insn_patch_end);
switch (sun4v_chip_type) {
case SUN4V_CHIP_SPARC_M7:
case SUN4V_CHIP_SPARC_M8:
case SUN4V_CHIP_SPARC_SN:
sun_m7_patch_2insn_range(&__sun_m7_2insn_patch,
&__sun_m7_2insn_patch_end);
break;
default:
break;
}
if (sun4v_chip_type != SUN4V_CHIP_NIAGARA1) {
sun4v_patch_1insn_range(&__fast_win_ctrl_1insn_patch,
&__fast_win_ctrl_1insn_patch_end);
}
sun4v_hvapi_init();
}
static void __init popc_patch(void)
{
struct popc_3insn_patch_entry *p3;
struct popc_6insn_patch_entry *p6;
p3 = &__popc_3insn_patch;
while (p3 < &__popc_3insn_patch_end) {
unsigned long i, addr = p3->addr;
for (i = 0; i < 3; i++) {
*(unsigned int *) (addr + (i * 4)) = p3->insns[i];
wmb();
__asm__ __volatile__("flush %0"
: : "r" (addr + (i * 4)));
}
p3++;
}
p6 = &__popc_6insn_patch;
while (p6 < &__popc_6insn_patch_end) {
unsigned long i, addr = p6->addr;
for (i = 0; i < 6; i++) {
*(unsigned int *) (addr + (i * 4)) = p6->insns[i];
wmb();
__asm__ __volatile__("flush %0"
: : "r" (addr + (i * 4)));
}
p6++;
}
}
static void __init pause_patch(void)
{
struct pause_patch_entry *p;
p = &__pause_3insn_patch;
while (p < &__pause_3insn_patch_end) {
unsigned long i, addr = p->addr;
for (i = 0; i < 3; i++) {
*(unsigned int *) (addr + (i * 4)) = p->insns[i];
wmb();
__asm__ __volatile__("flush %0"
: : "r" (addr + (i * 4)));
}
p++;
}
}
void __init start_early_boot(void)
{
int cpu;
check_if_starfire();
per_cpu_patch();
sun4v_patch();
smp_init_cpu_poke();
cpu = hard_smp_processor_id();
if (cpu >= NR_CPUS) {
prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n",
cpu, NR_CPUS);
prom_halt();
}
current_thread_info()->cpu = cpu;
time_init_early();
prom_init_report();
start_kernel();
}
/* On Ultra, we support all of the v8 capabilities. */
unsigned long sparc64_elf_hwcap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
HWCAP_SPARC_V9);
EXPORT_SYMBOL(sparc64_elf_hwcap);
static const char *hwcaps[] = {
"flush", "stbar", "swap", "muldiv", "v9",
"ultra3", "blkinit", "n2",
/* These strings are as they appear in the machine description
* 'hwcap-list' property for cpu nodes.
*/
"mul32", "div32", "fsmuld", "v8plus", "popc", "vis", "vis2",
"ASIBlkInit", "fmaf", "vis3", "hpc", "random", "trans", "fjfmau",
"ima", "cspare", "pause", "cbcond", NULL /*reserved for crypto */,
"adp",
};
static const char *crypto_hwcaps[] = {
"aes", "des", "kasumi", "camellia", "md5", "sha1", "sha256",
"sha512", "mpmul", "montmul", "montsqr", "crc32c",
};
void cpucap_info(struct seq_file *m)
{
unsigned long caps = sparc64_elf_hwcap;
int i, printed = 0;
seq_puts(m, "cpucaps\t\t: ");
for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {
unsigned long bit = 1UL << i;
if (hwcaps[i] && (caps & bit)) {
seq_printf(m, "%s%s",
printed ? "," : "", hwcaps[i]);
printed++;
}
}
if (caps & HWCAP_SPARC_CRYPTO) {
unsigned long cfr;
__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
for (i = 0; i < ARRAY_SIZE(crypto_hwcaps); i++) {
unsigned long bit = 1UL << i;
if (cfr & bit) {
seq_printf(m, "%s%s",
printed ? "," : "", crypto_hwcaps[i]);
printed++;
}
}
}
seq_putc(m, '\n');
}
static void __init report_one_hwcap(int *printed, const char *name)
{
if ((*printed) == 0)
printk(KERN_INFO "CPU CAPS: [");
printk(KERN_CONT "%s%s",
(*printed) ? "," : "", name);
if (++(*printed) == 8) {
printk(KERN_CONT "]\n");
*printed = 0;
}
}
static void __init report_crypto_hwcaps(int *printed)
{
unsigned long cfr;
int i;
__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
for (i = 0; i < ARRAY_SIZE(crypto_hwcaps); i++) {
unsigned long bit = 1UL << i;
if (cfr & bit)
report_one_hwcap(printed, crypto_hwcaps[i]);
}
}
static void __init report_hwcaps(unsigned long caps)
{
int i, printed = 0;
for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {
unsigned long bit = 1UL << i;
if (hwcaps[i] && (caps & bit))
report_one_hwcap(&printed, hwcaps[i]);
}
if (caps & HWCAP_SPARC_CRYPTO)
report_crypto_hwcaps(&printed);
if (printed != 0)
printk(KERN_CONT "]\n");
}
static unsigned long __init mdesc_cpu_hwcap_list(void)
{
struct mdesc_handle *hp;
unsigned long caps = 0;
const char *prop;
int len;
u64 pn;
hp = mdesc_grab();
if (!hp)
return 0;
pn = mdesc_node_by_name(hp, MDESC_NODE_NULL, "cpu");
if (pn == MDESC_NODE_NULL)
goto out;
prop = mdesc_get_property(hp, pn, "hwcap-list", &len);
if (!prop)
goto out;
while (len) {
int i, plen;
for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {
unsigned long bit = 1UL << i;
if (hwcaps[i] && !strcmp(prop, hwcaps[i])) {
caps |= bit;
break;
}
}
for (i = 0; i < ARRAY_SIZE(crypto_hwcaps); i++) {
if (!strcmp(prop, crypto_hwcaps[i]))
caps |= HWCAP_SPARC_CRYPTO;
}
plen = strlen(prop) + 1;
prop += plen;
len -= plen;
}
out:
mdesc_release(hp);
return caps;
}
/* This yields a mask that user programs can use to figure out what
* instruction set this cpu supports.
*/
static void __init init_sparc64_elf_hwcap(void)
{
unsigned long cap = sparc64_elf_hwcap;
unsigned long mdesc_caps;
if (tlb_type == cheetah || tlb_type == cheetah_plus)
cap |= HWCAP_SPARC_ULTRA3;
else if (tlb_type == hypervisor) {
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA2 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA3 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA4 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_BLKINIT;
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA3 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA4 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= HWCAP_SPARC_N2;
}
cap |= (AV_SPARC_MUL32 | AV_SPARC_DIV32 | AV_SPARC_V8PLUS);
mdesc_caps = mdesc_cpu_hwcap_list();
if (!mdesc_caps) {
if (tlb_type == spitfire)
cap |= AV_SPARC_VIS;
if (tlb_type == cheetah || tlb_type == cheetah_plus)
cap |= AV_SPARC_VIS | AV_SPARC_VIS2;
if (tlb_type == cheetah_plus) {
unsigned long impl, ver;
__asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver));
impl = ((ver >> 32) & 0xffff);
if (impl == PANTHER_IMPL)
cap |= AV_SPARC_POPC;
}
if (tlb_type == hypervisor) {
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1)
cap |= AV_SPARC_ASI_BLK_INIT;
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA3 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA4 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 |
AV_SPARC_ASI_BLK_INIT |
AV_SPARC_POPC);
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA3 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA4 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA5 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M6 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M7 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_M8 ||
sun4v_chip_type == SUN4V_CHIP_SPARC_SN ||
sun4v_chip_type == SUN4V_CHIP_SPARC64X)
cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC |
AV_SPARC_FMAF);
}
}
sparc64_elf_hwcap = cap | mdesc_caps;
report_hwcaps(sparc64_elf_hwcap);
if (sparc64_elf_hwcap & AV_SPARC_POPC)
popc_patch();
if (sparc64_elf_hwcap & AV_SPARC_PAUSE)
pause_patch();
}
void __init alloc_irqstack_bootmem(void)
{
unsigned int i, node;
for_each_possible_cpu(i) {
node = cpu_to_node(i);
softirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node),
THREAD_SIZE,
THREAD_SIZE, 0);
hardirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node),
THREAD_SIZE,
THREAD_SIZE, 0);
}
}
void __init setup_arch(char **cmdline_p)
{
/* Initialize PROM console and command line. */
*cmdline_p = prom_getbootargs();
strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
parse_early_param();
boot_flags_init(*cmdline_p);
#ifdef CONFIG_EARLYFB
if (btext_find_display())
#endif
register_console(&prom_early_console);
if (tlb_type == hypervisor)
printk("ARCH: SUN4V\n");
else
printk("ARCH: SUN4U\n");
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
idprom_init();
if (!root_flags)
root_mountflags &= ~MS_RDONLY;
ROOT_DEV = old_decode_dev(root_dev);
#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
#endif
task_thread_info(&init_task)->kregs = &fake_swapper_regs;
#ifdef CONFIG_IP_PNP
if (!ic_set_manually) {
phandle chosen = prom_finddevice("/chosen");
u32 cl, sv, gw;
cl = prom_getintdefault (chosen, "client-ip", 0);
sv = prom_getintdefault (chosen, "server-ip", 0);
gw = prom_getintdefault (chosen, "gateway-ip", 0);
if (cl && sv) {
ic_myaddr = cl;
ic_servaddr = sv;
if (gw)
ic_gateway = gw;
#if defined(CONFIG_IP_PNP_BOOTP) || defined(CONFIG_IP_PNP_RARP)
ic_proto_enabled = 0;
#endif
}
}
#endif
/* Get boot processor trap_block[] setup. */
init_cur_cpu_trap(current_thread_info());
paging_init();
init_sparc64_elf_hwcap();
smp_fill_in_cpu_possible_map();
/*
* Once the OF device tree and MDESC have been setup and nr_cpus has
* been parsed, we know the list of possible cpus. Therefore we can
* allocate the IRQ stacks.
*/
alloc_irqstack_bootmem();
}
extern int stop_a_enabled;
void sun_do_break(void)
{
if (!stop_a_enabled)
return;
prom_printf("\n");
flush_user_windows();
prom_cmdline();
}
EXPORT_SYMBOL(sun_do_break);
int stop_a_enabled = 1;
EXPORT_SYMBOL(stop_a_enabled);
Reference in New Issue View Git Blame Copy Permalink