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OpenCloudOS-Kernel
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Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

This commit is contained in:
Ingo Molnar 2008-10-06 18:17:07 +02:00
parent b159d7a989 5bbd4c3724 175e438f7a 516cbf3730 af2d237bf5 9b1568458a 5b7e41ff37 1befdefcf4 a03352d2c1 7b22ff5344 2c7e9fd4c6 91030ca1e7 dd5523552c b3e15bdef6 20211e4d34 efd327a2d4 c7ffa6c262 e51a1ac2df 5df4551551 d99e90164e e621bd1895
commit e496e3d645
90 changed files with 1305 additions and 774 deletions
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2
Documentation/00-INDEX
View File

@ -251,8 +251,6 @@ mono.txt
- how to execute Mono-based .NET binaries with the help of BINFMT_MISC.
moxa-smartio
- file with info on installing/using Moxa multiport serial driver.
mtrr.txt
- how to use PPro Memory Type Range Registers to increase performance.
mutex-design.txt
- info on the generic mutex subsystem.
namespaces/

12
Documentation/kernel-parameters.txt
View File

@ -463,12 +463,6 @@ and is between 256 and 4096 characters. It is defined in the file
Range: 0 - 8192
Default: 64
disable_8254_timer
enable_8254_timer
[IA32/X86_64] Disable/Enable interrupt 0 timer routing
over the 8254 in addition to over the IO-APIC. The
kernel tries to set a sensible default.
hpet= [X86-32,HPET] option to control HPET usage
Format: { enable (default) | disable | force }
disable: disable HPET and use PIT instead
@ -1882,6 +1876,12 @@ and is between 256 and 4096 characters. It is defined in the file
shapers= [NET]
Maximal number of shapers.
show_msr= [x86] show boot-time MSR settings
Format: { <integer> }
Show boot-time (BIOS-initialized) MSR settings.
The parameter means the number of CPUs to show,
for example 1 means boot CPU only.
sim710= [SCSI,HW]
See header of drivers/scsi/sim710.c.

4
Documentation/x86/00-INDEX Normal file
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@ -0,0 +1,4 @@
00-INDEX
- this file
mtrr.txt
- how to use x86 Memory Type Range Registers to increase performance

2
Documentation/x86/i386/boot.txt → Documentation/x86/boot.txt
View File

@ -308,7 +308,7 @@ Protocol: 2.00+
Field name: start_sys
Type: read
Offset/size: 0x20c/4
Offset/size: 0x20c/2
Protocol: 2.00+
The load low segment (0x1000). Obsolete.

0
Documentation/mtrr.txt → Documentation/x86/mtrr.txt
View File

54
Documentation/x86/pat.txt
View File

@ -14,6 +14,10 @@ PAT allows for different types of memory attributes. The most commonly used
ones that will be supported at this time are Write-back, Uncached,
Write-combined and Uncached Minus.
PAT APIs
--------
There are many different APIs in the kernel that allows setting of memory
attributes at the page level. In order to avoid aliasing, these interfaces
should be used thoughtfully. Below is a table of interfaces available,
@ -26,38 +30,38 @@ address range to avoid any aliasing.
API | RAM | ACPI,... | Reserved/Holes |
-----------------------|----------|------------|------------------|
| | | |
ioremap | -- | UC | UC |
ioremap | -- | UC- | UC- |
| | | |
ioremap_cache | -- | WB | WB |
| | | |
ioremap_nocache | -- | UC | UC |
ioremap_nocache | -- | UC- | UC- |
| | | |
ioremap_wc | -- | -- | WC |
| | | |
set_memory_uc | UC | -- | -- |
set_memory_uc | UC- | -- | -- |
set_memory_wb | | | |
| | | |
set_memory_wc | WC | -- | -- |
set_memory_wb | | | |
| | | |
pci sysfs resource | -- | -- | UC |
pci sysfs resource | -- | -- | UC- |
| | | |
pci sysfs resource_wc | -- | -- | WC |
is IORESOURCE_PREFETCH| | | |
| | | |
pci proc | -- | -- | UC |
pci proc | -- | -- | UC- |
!PCIIOC_WRITE_COMBINE | | | |
| | | |
pci proc | -- | -- | WC |
PCIIOC_WRITE_COMBINE | | | |
| | | |
/dev/mem | -- | UC | UC |
/dev/mem | -- | WB/WC/UC- | WB/WC/UC- |
read-write | | | |
| | | |
/dev/mem | -- | UC | UC |
/dev/mem | -- | UC- | UC- |
mmap SYNC flag | | | |
| | | |
/dev/mem | -- | WB/WC/UC | WB/WC/UC |
/dev/mem | -- | WB/WC/UC- | WB/WC/UC- |
mmap !SYNC flag | |(from exist-| (from exist- |
and | | ing alias)| ing alias) |
any alias to this area| | | |
@ -68,7 +72,7 @@ pci proc | -- | -- | WC |
and | | | |
MTRR says WB | | | |
| | | |
/dev/mem | -- | -- | UC_MINUS |
/dev/mem | -- | -- | UC- |
mmap !SYNC flag | | | |
no alias to this area | | | |
and | | | |
@ -98,3 +102,35 @@ types.
Drivers should use set_memory_[uc|wc] to set access type for RAM ranges.
PAT debugging
-------------
With CONFIG_DEBUG_FS enabled, PAT memtype list can be examined by
# mount -t debugfs debugfs /sys/kernel/debug
# cat /sys/kernel/debug/x86/pat_memtype_list
PAT memtype list:
uncached-minus @ 0x7fadf000-0x7fae0000
uncached-minus @ 0x7fb19000-0x7fb1a000
uncached-minus @ 0x7fb1a000-0x7fb1b000
uncached-minus @ 0x7fb1b000-0x7fb1c000
uncached-minus @ 0x7fb1c000-0x7fb1d000
uncached-minus @ 0x7fb1d000-0x7fb1e000
uncached-minus @ 0x7fb1e000-0x7fb25000
uncached-minus @ 0x7fb25000-0x7fb26000
uncached-minus @ 0x7fb26000-0x7fb27000
uncached-minus @ 0x7fb27000-0x7fb28000
uncached-minus @ 0x7fb28000-0x7fb2e000
uncached-minus @ 0x7fb2e000-0x7fb2f000
uncached-minus @ 0x7fb2f000-0x7fb30000
uncached-minus @ 0x7fb31000-0x7fb32000
uncached-minus @ 0x80000000-0x90000000
This list shows physical address ranges and various PAT settings used to
access those physical address ranges.
Another, more verbose way of getting PAT related debug messages is with
"debugpat" boot parameter. With this parameter, various debug messages are
printed to dmesg log.

0
Documentation/x86/i386/usb-legacy-support.txt → Documentation/x86/usb-legacy-support.txt
View File

4
Documentation/x86/x86_64/boot-options.txt
View File

@ -54,10 +54,6 @@ APICs
apicmaintimer. Useful when your PIT timer is totally
broken.
disable_8254_timer / enable_8254_timer
Enable interrupt 0 timer routing over the 8254 in addition to over
the IO-APIC. The kernel tries to set a sensible default.
Early Console
syntax: earlyprintk=vga

0
Documentation/x86/i386/zero-page.txt → Documentation/x86/zero-page.txt
View File

74
arch/x86/Kconfig
View File

@ -1021,7 +1021,7 @@ config HAVE_ARCH_ALLOC_REMAP
config ARCH_FLATMEM_ENABLE
def_bool y
depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC && !NUMA
depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
@ -1037,7 +1037,7 @@ config ARCH_SPARSEMEM_DEFAULT
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC)
depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC) || X86_GENERICARCH
select SPARSEMEM_STATIC if X86_32
select SPARSEMEM_VMEMMAP_ENABLE if X86_64
@ -1118,10 +1118,10 @@ config MTRR
You can safely say Y even if your machine doesn't have MTRRs, you'll
just add about 9 KB to your kernel.
See <file:Documentation/mtrr.txt> for more information.
See <file:Documentation/x86/mtrr.txt> for more information.
config MTRR_SANITIZER
bool
def_bool y
prompt "MTRR cleanup support"
depends on MTRR
help
@ -1132,7 +1132,7 @@ config MTRR_SANITIZER
The largest mtrr entry size for a continous block can be set with
mtrr_chunk_size.
If unsure, say N.
If unsure, say Y.
config MTRR_SANITIZER_ENABLE_DEFAULT
int "MTRR cleanup enable value (0-1)"
@ -1192,7 +1192,6 @@ config IRQBALANCE
config SECCOMP
def_bool y
prompt "Enable seccomp to safely compute untrusted bytecode"
depends on PROC_FS
help
This kernel feature is useful for number crunching applications
that may need to compute untrusted bytecode during their
@ -1200,7 +1199,7 @@ config SECCOMP
the process as file descriptors supporting the read/write
syscalls, it's possible to isolate those applications in
their own address space using seccomp. Once seccomp is
enabled via /proc/<pid>/seccomp, it cannot be disabled
enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
and the task is only allowed to execute a few safe syscalls
defined by each seccomp mode.
@ -1357,14 +1356,14 @@ config PHYSICAL_ALIGN
Don't change this unless you know what you are doing.
config HOTPLUG_CPU
bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
bool "Support for hot-pluggable CPUs"
depends on SMP && HOTPLUG && !X86_VOYAGER
---help---
Say Y here to experiment with turning CPUs off and on, and to
enable suspend on SMP systems. CPUs can be controlled through
/sys/devices/system/cpu.
Say N if you want to disable CPU hotplug and don't need to
suspend.
Say Y here to allow turning CPUs off and on. CPUs can be
controlled through /sys/devices/system/cpu.
( Note: power management support will enable this option
automatically on SMP systems. )
Say N if you want to disable CPU hotplug.
config COMPAT_VDSO
def_bool y
@ -1379,6 +1378,51 @@ config COMPAT_VDSO
If unsure, say Y.
config CMDLINE_BOOL
bool "Built-in kernel command line"
default n
help
Allow for specifying boot arguments to the kernel at
build time. On some systems (e.g. embedded ones), it is
necessary or convenient to provide some or all of the
kernel boot arguments with the kernel itself (that is,
to not rely on the boot loader to provide them.)
To compile command line arguments into the kernel,
set this option to 'Y', then fill in the
the boot arguments in CONFIG_CMDLINE.
Systems with fully functional boot loaders (i.e. non-embedded)
should leave this option set to 'N'.
config CMDLINE
string "Built-in kernel command string"
depends on CMDLINE_BOOL
default ""
help
Enter arguments here that should be compiled into the kernel
image and used at boot time. If the boot loader provides a
command line at boot time, it is appended to this string to
form the full kernel command line, when the system boots.
However, you can use the CONFIG_CMDLINE_OVERRIDE option to
change this behavior.
In most cases, the command line (whether built-in or provided
by the boot loader) should specify the device for the root
file system.
config CMDLINE_OVERRIDE
bool "Built-in command line overrides boot loader arguments"
default n
depends on CMDLINE_BOOL
help
Set this option to 'Y' to have the kernel ignore the boot loader
command line, and use ONLY the built-in command line.
This is used to work around broken boot loaders. This should
be set to 'N' under normal conditions.
endmenu
config ARCH_ENABLE_MEMORY_HOTPLUG
@ -1774,7 +1818,7 @@ config COMPAT_FOR_U64_ALIGNMENT
config SYSVIPC_COMPAT
def_bool y
depends on X86_64 && COMPAT && SYSVIPC
depends on COMPAT && SYSVIPC
endmenu

5
arch/x86/boot/compressed/head_32.S
View File

@ -137,14 +137,15 @@ relocated:
*/
movl output_len(%ebx), %eax
pushl %eax
# push arguments for decompress_kernel:
pushl %ebp # output address
movl input_len(%ebx), %eax
pushl %eax # input_len
leal input_data(%ebx), %eax
pushl %eax # input_data
leal boot_heap(%ebx), %eax
pushl %eax # heap area as third argument
pushl %esi # real mode pointer as second arg
pushl %eax # heap area
pushl %esi # real mode pointer
call decompress_kernel
addl $20, %esp
popl %ecx

10
arch/x86/boot/compressed/misc.c
View File

@ -27,7 +27,7 @@
#include <linux/linkage.h>
#include <linux/screen_info.h>
#include <linux/elf.h>
#include <asm/io.h>
#include <linux/io.h>
#include <asm/page.h>
#include <asm/boot.h>
#include <asm/bootparam.h>
@ -251,7 +251,7 @@ static void __putstr(int error, const char *s)
y--;
}
} else {
vidmem [(x + cols * y) * 2] = c;
vidmem[(x + cols * y) * 2] = c;
if (++x >= cols) {
x = 0;
if (++y >= lines) {
@ -277,7 +277,8 @@ static void *memset(void *s, int c, unsigned n)
int i;
char *ss = s;
for (i = 0; i < n; i++) ss[i] = c;
for (i = 0; i < n; i++)
ss[i] = c;
return s;
}
@ -287,7 +288,8 @@ static void *memcpy(void *dest, const void *src, unsigned n)
const char *s = src;
char *d = dest;
for (i = 0; i < n; i++) d[i] = s[i];
for (i = 0; i < n; i++)
d[i] = s[i];
return dest;
}

1
arch/x86/boot/header.S
View File

@ -30,7 +30,6 @@ SYSSEG = DEF_SYSSEG /* system loaded at 0x10000 (65536) */
SYSSIZE = DEF_SYSSIZE /* system size: # of 16-byte clicks */
/* to be loaded */
ROOT_DEV = 0 /* ROOT_DEV is now written by "build" */
SWAP_DEV = 0 /* SWAP_DEV is now written by "build" */
#ifndef SVGA_MODE
#define SVGA_MODE ASK_VGA

19
arch/x86/configs/i386_defconfig
View File

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.27-rc4
# Mon Aug 25 15:04:00 2008
# Linux kernel version: 2.6.27-rc5
# Wed Sep 3 17:23:09 2008
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
@ -202,7 +202,7 @@ CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
CONFIG_M686=y
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
@ -221,13 +221,14 @@ CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
CONFIG_MCORE2=y
# CONFIG_MCORE2 is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_GENERIC=y
CONFIG_X86_CPU=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_XADD=y
# CONFIG_X86_PPRO_FENCE is not set
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
@ -235,14 +236,15 @@ CONFIG_X86_POPAD_OK=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=4
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_IOMMU_HELPER is not set
CONFIG_NR_CPUS=4
# CONFIG_SCHED_SMT is not set
CONFIG_NR_CPUS=64
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
@ -254,7 +256,8 @@ CONFIG_VM86=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
CONFIG_X86_REBOOTFIXUPS=y
# CONFIG_MICROCODE is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
# CONFIG_NOHIGHMEM is not set
@ -2115,7 +2118,7 @@ CONFIG_IO_DELAY_0X80=y
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
CONFIG_OPTIMIZE_INLINING=y
#
# Security options

29
arch/x86/configs/x86_64_defconfig
View File

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.27-rc4
# Mon Aug 25 14:40:46 2008
# Linux kernel version: 2.6.27-rc5
# Wed Sep 3 17:13:39 2008
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
@ -218,17 +218,14 @@ CONFIG_X86_PC=y
# CONFIG_MVIAC3_2 is not set
# CONFIG_MVIAC7 is not set
# CONFIG_MPSC is not set
CONFIG_MCORE2=y
# CONFIG_GENERIC_CPU is not set
# CONFIG_MCORE2 is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_CPU=y
CONFIG_X86_L1_CACHE_BYTES=64
CONFIG_X86_INTERNODE_CACHE_BYTES=64
CONFIG_X86_L1_CACHE_BYTES=128
CONFIG_X86_INTERNODE_CACHE_BYTES=128
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_P6_NOP=y
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
@ -243,9 +240,8 @@ CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_AMD_IOMMU=y
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=4
# CONFIG_SCHED_SMT is not set
CONFIG_NR_CPUS=64
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
@ -254,7 +250,8 @@ CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_MCE is not set
# CONFIG_I8K is not set
# CONFIG_MICROCODE is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_NUMA=y
@ -290,7 +287,7 @@ CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
# CONFIG_X86_PAT is not set
CONFIG_X86_PAT=y
CONFIG_EFI=y
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
@ -2089,7 +2086,7 @@ CONFIG_IO_DELAY_0X80=y
CONFIG_DEFAULT_IO_DELAY_TYPE=0
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
CONFIG_OPTIMIZE_INLINING=y
#
# Security options

11
arch/x86/ia32/ia32_aout.c
View File

@ -85,8 +85,10 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
dump->regs.ax = regs->ax;
dump->regs.ds = current->thread.ds;
dump->regs.es = current->thread.es;
asm("movl %%fs,%0" : "=r" (fs)); dump->regs.fs = fs;
asm("movl %%gs,%0" : "=r" (gs)); dump->regs.gs = gs;
savesegment(fs, fs);
dump->regs.fs = fs;
savesegment(gs, gs);
dump->regs.gs = gs;
dump->regs.orig_ax = regs->orig_ax;
dump->regs.ip = regs->ip;
dump->regs.cs = regs->cs;
@ -430,8 +432,9 @@ beyond_if:
current->mm->start_stack =
(unsigned long)create_aout_tables((char __user *)bprm->p, bprm);
/* start thread */
asm volatile("movl %0,%%fs" :: "r" (0)); \
asm volatile("movl %0,%%es; movl %0,%%ds": :"r" (__USER32_DS));
loadsegment(fs, 0);
loadsegment(ds, __USER32_DS);
loadsegment(es, __USER32_DS);
load_gs_index(0);
(regs)->ip = ex.a_entry;
(regs)->sp = current->mm->start_stack;

21
arch/x86/ia32/ia32_signal.c
View File

@ -206,7 +206,7 @@ struct rt_sigframe
{ unsigned int cur; \
unsigned short pre; \
err |= __get_user(pre, &sc->seg); \
asm volatile("movl %%" #seg ",%0" : "=r" (cur)); \
savesegment(seg, cur); \
pre |= mask; \
if (pre != cur) loadsegment(seg, pre); }
@ -235,7 +235,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
*/
err |= __get_user(gs, &sc->gs);
gs |= 3;
asm("movl %%gs,%0" : "=r" (oldgs));
savesegment(gs, oldgs);
if (gs != oldgs)
load_gs_index(gs);
@ -355,14 +355,13 @@ static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
{
int tmp, err = 0;
tmp = 0;
__asm__("movl %%gs,%0" : "=r"(tmp): "0"(tmp));
savesegment(gs, tmp);
err |= __put_user(tmp, (unsigned int __user *)&sc->gs);
__asm__("movl %%fs,%0" : "=r"(tmp): "0"(tmp));
savesegment(fs, tmp);
err |= __put_user(tmp, (unsigned int __user *)&sc->fs);
__asm__("movl %%ds,%0" : "=r"(tmp): "0"(tmp));
savesegment(ds, tmp);
err |= __put_user(tmp, (unsigned int __user *)&sc->ds);
__asm__("movl %%es,%0" : "=r"(tmp): "0"(tmp));
savesegment(es, tmp);
err |= __put_user(tmp, (unsigned int __user *)&sc->es);
err |= __put_user((u32)regs->di, &sc->di);
@ -498,8 +497,8 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
regs->dx = 0;
regs->cx = 0;
asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
loadsegment(ds, __USER32_DS);
loadsegment(es, __USER32_DS);
regs->cs = __USER32_CS;
regs->ss = __USER32_DS;
@ -591,8 +590,8 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->dx = (unsigned long) &frame->info;
regs->cx = (unsigned long) &frame->uc;
asm volatile("movl %0,%%ds" :: "r" (__USER32_DS));
asm volatile("movl %0,%%es" :: "r" (__USER32_DS));
loadsegment(ds, __USER32_DS);
loadsegment(es, __USER32_DS);
regs->cs = __USER32_CS;
regs->ss = __USER32_DS;

9
arch/x86/ia32/sys_ia32.c
View File

@ -556,15 +556,6 @@ asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
return ret;
}
/* These are here just in case some old ia32 binary calls it. */
asmlinkage long sys32_pause(void)
{
current->state = TASK_INTERRUPTIBLE;
schedule();
return -ERESTARTNOHAND;
}
#ifdef CONFIG_SYSCTL_SYSCALL
struct sysctl_ia32 {
unsigned int name;

5
arch/x86/kernel/acpi/boot.c
View File

@ -58,7 +58,6 @@ EXPORT_SYMBOL(acpi_disabled);
#ifdef CONFIG_X86_64
#include <asm/proto.h>
#include <asm/genapic.h>
#else /* X86 */
@ -97,8 +96,6 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
#warning ACPI uses CMPXCHG, i486 and later hardware
#endif
static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
/* --------------------------------------------------------------------------
Boot-time Configuration
-------------------------------------------------------------------------- */
@ -160,6 +157,8 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size)
struct acpi_mcfg_allocation *pci_mmcfg_config;
int pci_mmcfg_config_num;
static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg)
{
if (!strcmp(mcfg->header.oem_id, "SGI"))

8
arch/x86/kernel/alternative.c
View File

@ -231,25 +231,25 @@ static void alternatives_smp_lock(u8 **start, u8 **end, u8 *text, u8 *text_end)
continue;
if (*ptr > text_end)
continue;
text_poke(*ptr, ((unsigned char []){0xf0}), 1); /* add lock prefix */
/* turn DS segment override prefix into lock prefix */
text_poke(*ptr, ((unsigned char []){0xf0}), 1);
};
}
static void alternatives_smp_unlock(u8 **start, u8 **end, u8 *text, u8 *text_end)
{
u8 **ptr;
char insn[1];
if (noreplace_smp)
return;
add_nops(insn, 1);
for (ptr = start; ptr < end; ptr++) {
if (*ptr < text)
continue;
if (*ptr > text_end)
continue;
text_poke(*ptr, insn, 1);
/* turn lock prefix into DS segment override prefix */
text_poke(*ptr, ((unsigned char []){0x3E}), 1);
};
}

6
arch/x86/kernel/aperture_64.c
View File

@ -455,11 +455,11 @@ out:
force_iommu ||
valid_agp ||
fallback_aper_force) {
printk(KERN_ERR
printk(KERN_INFO
"Your BIOS doesn't leave a aperture memory hole\n");
printk(KERN_ERR
printk(KERN_INFO
"Please enable the IOMMU option in the BIOS setup\n");
printk(KERN_ERR
printk(KERN_INFO
"This costs you %d MB of RAM\n",
32 << fallback_aper_order);

1
arch/x86/kernel/apm_32.c
View File

@ -228,7 +228,6 @@
#include <linux/suspend.h>
#include <linux/kthread.h>
#include <linux/jiffies.h>
#include <linux/smp_lock.h>
#include <asm/system.h>
#include <asm/uaccess.h>

51
arch/x86/kernel/cpu/common_64.c
View File

@ -430,6 +430,49 @@ static __init int setup_noclflush(char *arg)
}
__setup("noclflush", setup_noclflush);
struct msr_range {
unsigned min;
unsigned max;
};
static struct msr_range msr_range_array[] __cpuinitdata = {
{ 0x00000000, 0x00000418},
{ 0xc0000000, 0xc000040b},
{ 0xc0010000, 0xc0010142},
{ 0xc0011000, 0xc001103b},
};
static void __cpuinit print_cpu_msr(void)
{
unsigned index;
u64 val;
int i;
unsigned index_min, index_max;
for (i = 0; i < ARRAY_SIZE(msr_range_array); i++) {
index_min = msr_range_array[i].min;
index_max = msr_range_array[i].max;
for (index = index_min; index < index_max; index++) {
if (rdmsrl_amd_safe(index, &val))
continue;
printk(KERN_INFO " MSR%08x: %016llx\n", index, val);
}
}
}
static int show_msr __cpuinitdata;
static __init int setup_show_msr(char *arg)
{
int num;
get_option(&arg, &num);
if (num > 0)
show_msr = num;
return 1;
}
__setup("show_msr=", setup_show_msr);
void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
{
if (c->x86_model_id[0])
@ -439,6 +482,14 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
printk(KERN_CONT " stepping %02x\n", c->x86_mask);
else
printk(KERN_CONT "\n");
#ifdef CONFIG_SMP
if (c->cpu_index < show_msr)
print_cpu_msr();
#else
if (show_msr)
print_cpu_msr();
#endif
}
static __init int setup_disablecpuid(char *arg)

7
arch/x86/kernel/cpu/mtrr/generic.c
View File

@ -401,12 +401,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
tmp |= ~((1<<(hi - 1)) - 1);
if (tmp != mask_lo) {
static int once = 1;
if (once) {
printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
once = 0;
}
WARN_ONCE(1, KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
mask_lo = tmp;
}
}

4
arch/x86/kernel/cpu/mtrr/if.c
View File

@ -405,9 +405,9 @@ static int mtrr_seq_show(struct seq_file *seq, void *offset)
}
/* RED-PEN: base can be > 32bit */
len += seq_printf(seq,
"reg%02i: base=0x%05lx000 (%4luMB), size=%4lu%cB: %s, count=%d\n",
"reg%02i: base=0x%06lx000 (%5luMB), size=%5lu%cB, count=%d: %s\n",
i, base, base >> (20 - PAGE_SHIFT), size, factor,
mtrr_attrib_to_str(type), mtrr_usage_table[i]);
mtrr_usage_table[i], mtrr_attrib_to_str(type));
}
}
return 0;

256
arch/x86/kernel/cpu/mtrr/main.c
View File

@ -759,7 +759,8 @@ x86_get_mtrr_mem_range(struct res_range *range, int nr_range,
/* take out UC ranges */
for (i = 0; i < num_var_ranges; i++) {
type = range_state[i].type;
if (type != MTRR_TYPE_UNCACHABLE)
if (type != MTRR_TYPE_UNCACHABLE &&
type != MTRR_TYPE_WRPROT)
continue;
size = range_state[i].size_pfn;
if (!size)
@ -836,6 +837,13 @@ static int __init enable_mtrr_cleanup_setup(char *str)
}
early_param("enable_mtrr_cleanup", enable_mtrr_cleanup_setup);
static int __init mtrr_cleanup_debug_setup(char *str)
{
debug_print = 1;
return 0;
}
early_param("mtrr_cleanup_debug", mtrr_cleanup_debug_setup);
struct var_mtrr_state {
unsigned long range_startk;
unsigned long range_sizek;
@ -898,6 +906,27 @@ set_var_mtrr_all(unsigned int address_bits)
}
}
static unsigned long to_size_factor(unsigned long sizek, char *factorp)
{
char factor;
unsigned long base = sizek;
if (base & ((1<<10) - 1)) {
/* not MB alignment */
factor = 'K';
} else if (base & ((1<<20) - 1)){
factor = 'M';
base >>= 10;
} else {
factor = 'G';
base >>= 20;
}
*factorp = factor;
return base;
}
static unsigned int __init
range_to_mtrr(unsigned int reg, unsigned long range_startk,
unsigned long range_sizek, unsigned char type)
@ -919,13 +948,21 @@ range_to_mtrr(unsigned int reg, unsigned long range_startk,
align = max_align;
sizek = 1 << align;
if (debug_print)
if (debug_print) {
char start_factor = 'K', size_factor = 'K';
unsigned long start_base, size_base;
start_base = to_size_factor(range_startk, &start_factor),
size_base = to_size_factor(sizek, &size_factor),
printk(KERN_DEBUG "Setting variable MTRR %d, "
"base: %ldMB, range: %ldMB, type %s\n",
reg, range_startk >> 10, sizek >> 10,
"base: %ld%cB, range: %ld%cB, type %s\n",
reg, start_base, start_factor,
size_base, size_factor,
(type == MTRR_TYPE_UNCACHABLE)?"UC":
((type == MTRR_TYPE_WRBACK)?"WB":"Other")
);
}
save_var_mtrr(reg++, range_startk, sizek, type);
range_startk += sizek;
range_sizek -= sizek;
@ -970,6 +1007,8 @@ range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
/* try to append some small hole */
range0_basek = state->range_startk;
range0_sizek = ALIGN(state->range_sizek, chunk_sizek);
/* no increase */
if (range0_sizek == state->range_sizek) {
if (debug_print)
printk(KERN_DEBUG "rangeX: %016lx - %016lx\n",
@ -980,15 +1019,42 @@ range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
return 0;
}
range0_sizek -= chunk_sizek;
if (range0_sizek && sizek) {
/* only cut back, when it is not the last */
if (sizek) {
while (range0_basek + range0_sizek > (basek + sizek)) {
if (range0_sizek >= chunk_sizek)
range0_sizek -= chunk_sizek;
else
range0_sizek = 0;
if (!range0_sizek)
break;
}
}
second_try:
range_basek = range0_basek + range0_sizek;
/* one hole in the middle */
if (range_basek > basek && range_basek <= (basek + sizek))
second_sizek = range_basek - basek;
if (range0_sizek > state->range_sizek) {
/* one hole in middle or at end */
hole_sizek = range0_sizek - state->range_sizek - second_sizek;
/* hole size should be less than half of range0 size */
if (hole_sizek >= (range0_sizek >> 1) &&
range0_sizek >= chunk_sizek) {
range0_sizek -= chunk_sizek;
second_sizek = 0;
hole_sizek = 0;
goto second_try;
}
}
if (range0_sizek) {
if (debug_print)
printk(KERN_DEBUG "range0: %016lx - %016lx\n",
@ -996,50 +1062,28 @@ range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
(range0_basek + range0_sizek)<<10);
state->reg = range_to_mtrr(state->reg, range0_basek,
range0_sizek, MTRR_TYPE_WRBACK);
}
range_basek = range0_basek + range0_sizek;
range_sizek = chunk_sizek;
if (range_basek + range_sizek > basek &&
range_basek + range_sizek <= (basek + sizek)) {
/* one hole */
second_basek = basek;
second_sizek = range_basek + range_sizek - basek;
}
/* if last piece, only could one hole near end */
if ((second_basek || !basek) &&
range_sizek - (state->range_sizek - range0_sizek) - second_sizek <
(chunk_sizek >> 1)) {
/*
* one hole in middle (second_sizek is 0) or at end
* (second_sizek is 0 )
*/
hole_sizek = range_sizek - (state->range_sizek - range0_sizek)
- second_sizek;
hole_basek = range_basek + range_sizek - hole_sizek
- second_sizek;
} else {
/* fallback for big hole, or several holes */
if (range0_sizek < state->range_sizek) {
/* need to handle left over */
range_sizek = state->range_sizek - range0_sizek;
second_basek = 0;
second_sizek = 0;
}
if (debug_print)
printk(KERN_DEBUG "range: %016lx - %016lx\n", range_basek<<10,
printk(KERN_DEBUG "range: %016lx - %016lx\n",
range_basek<<10,
(range_basek + range_sizek)<<10);
state->reg = range_to_mtrr(state->reg, range_basek, range_sizek,
MTRR_TYPE_WRBACK);
state->reg = range_to_mtrr(state->reg, range_basek,
range_sizek, MTRR_TYPE_WRBACK);
}
if (hole_sizek) {
hole_basek = range_basek - hole_sizek - second_sizek;
if (debug_print)
printk(KERN_DEBUG "hole: %016lx - %016lx\n",
hole_basek<<10, (hole_basek + hole_sizek)<<10);
state->reg = range_to_mtrr(state->reg, hole_basek, hole_sizek,
MTRR_TYPE_UNCACHABLE);
hole_basek<<10,
(hole_basek + hole_sizek)<<10);
state->reg = range_to_mtrr(state->reg, hole_basek,
hole_sizek, MTRR_TYPE_UNCACHABLE);
}
return second_sizek;
@ -1154,11 +1198,11 @@ struct mtrr_cleanup_result {
};
/*
* gran_size: 1M, 2M, ..., 2G
* chunk size: gran_size, ..., 4G
* so we need (2+13)*6
* gran_size: 64K, 128K, 256K, 512K, 1M, 2M, ..., 2G
* chunk size: gran_size, ..., 2G
* so we need (1+16)*8
*/
#define NUM_RESULT 90
#define NUM_RESULT 136
#define PSHIFT (PAGE_SHIFT - 10)
static struct mtrr_cleanup_result __initdata result[NUM_RESULT];
@ -1168,13 +1212,14 @@ static unsigned long __initdata min_loss_pfn[RANGE_NUM];
static int __init mtrr_cleanup(unsigned address_bits)
{
unsigned long extra_remove_base, extra_remove_size;
unsigned long i, base, size, def, dummy;
unsigned long base, size, def, dummy;
mtrr_type type;
int nr_range, nr_range_new;
u64 chunk_size, gran_size;
unsigned long range_sums, range_sums_new;
int index_good;
int num_reg_good;
int i;
/* extra one for all 0 */
int num[MTRR_NUM_TYPES + 1];
@ -1204,6 +1249,8 @@ static int __init mtrr_cleanup(unsigned address_bits)
continue;
if (!size)
type = MTRR_NUM_TYPES;
if (type == MTRR_TYPE_WRPROT)
type = MTRR_TYPE_UNCACHABLE;
num[type]++;
}
@ -1216,23 +1263,57 @@ static int __init mtrr_cleanup(unsigned address_bits)
num_var_ranges - num[MTRR_NUM_TYPES])
return 0;
/* print original var MTRRs at first, for debugging: */
printk(KERN_DEBUG "original variable MTRRs\n");
for (i = 0; i < num_var_ranges; i++) {
char start_factor = 'K', size_factor = 'K';
unsigned long start_base, size_base;
size_base = range_state[i].size_pfn << (PAGE_SHIFT - 10);
if (!size_base)
continue;
size_base = to_size_factor(size_base, &size_factor),
start_base = range_state[i].base_pfn << (PAGE_SHIFT - 10);
start_base = to_size_factor(start_base, &start_factor),
type = range_state[i].type;
printk(KERN_DEBUG "reg %d, base: %ld%cB, range: %ld%cB, type %s\n",
i, start_base, start_factor,
size_base, size_factor,
(type == MTRR_TYPE_UNCACHABLE) ? "UC" :
((type == MTRR_TYPE_WRPROT) ? "WP" :
((type == MTRR_TYPE_WRBACK) ? "WB" : "Other"))
);
}
memset(range, 0, sizeof(range));
extra_remove_size = 0;
if (mtrr_tom2) {
extra_remove_base = 1 << (32 - PAGE_SHIFT);
if (mtrr_tom2)
extra_remove_size =
(mtrr_tom2 >> PAGE_SHIFT) - extra_remove_base;
}
nr_range = x86_get_mtrr_mem_range(range, 0, extra_remove_base,
extra_remove_size);
/*
* [0, 1M) should always be coverred by var mtrr with WB
* and fixed mtrrs should take effective before var mtrr for it
*/
nr_range = add_range_with_merge(range, nr_range, 0,
(1ULL<<(20 - PAGE_SHIFT)) - 1);
/* sort the ranges */
sort(range, nr_range, sizeof(struct res_range), cmp_range, NULL);
range_sums = sum_ranges(range, nr_range);
printk(KERN_INFO "total RAM coverred: %ldM\n",
range_sums >> (20 - PAGE_SHIFT));
if (mtrr_chunk_size && mtrr_gran_size) {
int num_reg;
char gran_factor, chunk_factor, lose_factor;
unsigned long gran_base, chunk_base, lose_base;
debug_print = 1;
debug_print++;
/* convert ranges to var ranges state */
num_reg = x86_setup_var_mtrrs(range, nr_range, mtrr_chunk_size,
mtrr_gran_size);
@ -1256,34 +1337,48 @@ static int __init mtrr_cleanup(unsigned address_bits)
result[i].lose_cover_sizek =
(range_sums - range_sums_new) << PSHIFT;
printk(KERN_INFO "%sgran_size: %ldM \tchunk_size: %ldM \t",
result[i].bad?"*BAD*":" ", result[i].gran_sizek >> 10,
result[i].chunk_sizek >> 10);
printk(KERN_CONT "num_reg: %d \tlose cover RAM: %s%ldM \n",
gran_base = to_size_factor(result[i].gran_sizek, &gran_factor),
chunk_base = to_size_factor(result[i].chunk_sizek, &chunk_factor),
lose_base = to_size_factor(result[i].lose_cover_sizek, &lose_factor),
printk(KERN_INFO "%sgran_size: %ld%c \tchunk_size: %ld%c \t",
result[i].bad?"*BAD*":" ",
gran_base, gran_factor, chunk_base, chunk_factor);
printk(KERN_CONT "num_reg: %d \tlose cover RAM: %s%ld%c\n",
result[i].num_reg, result[i].bad?"-":"",
result[i].lose_cover_sizek >> 10);
lose_base, lose_factor);
if (!result[i].bad) {
set_var_mtrr_all(address_bits);
return 1;
}
printk(KERN_INFO "invalid mtrr_gran_size or mtrr_chunk_size, "
"will find optimal one\n");
debug_print = 0;
debug_print--;
memset(result, 0, sizeof(result[0]));
}
i = 0;
memset(min_loss_pfn, 0xff, sizeof(min_loss_pfn));
memset(result, 0, sizeof(result));
for (gran_size = (1ULL<<20); gran_size < (1ULL<<32); gran_size <<= 1) {
for (chunk_size = gran_size; chunk_size < (1ULL<<33);
for (gran_size = (1ULL<<16); gran_size < (1ULL<<32); gran_size <<= 1) {
char gran_factor;
unsigned long gran_base;
if (debug_print)
gran_base = to_size_factor(gran_size >> 10, &gran_factor);
for (chunk_size = gran_size; chunk_size < (1ULL<<32);
chunk_size <<= 1) {
int num_reg;
if (debug_print)
printk(KERN_INFO
"\ngran_size: %lldM chunk_size_size: %lldM\n",
gran_size >> 20, chunk_size >> 20);
if (debug_print) {
char chunk_factor;
unsigned long chunk_base;
chunk_base = to_size_factor(chunk_size>>10, &chunk_factor),
printk(KERN_INFO "\n");
printk(KERN_INFO "gran_size: %ld%c chunk_size: %ld%c \n",
gran_base, gran_factor, chunk_base, chunk_factor);
}
if (i >= NUM_RESULT)
continue;
@ -1326,12 +1421,18 @@ static int __init mtrr_cleanup(unsigned address_bits)
/* print out all */
for (i = 0; i < NUM_RESULT; i++) {
printk(KERN_INFO "%sgran_size: %ldM \tchunk_size: %ldM \t",
result[i].bad?"*BAD* ":" ", result[i].gran_sizek >> 10,
result[i].chunk_sizek >> 10);
printk(KERN_CONT "num_reg: %d \tlose RAM: %s%ldM\n",
char gran_factor, chunk_factor, lose_factor;
unsigned long gran_base, chunk_base, lose_base;
gran_base = to_size_factor(result[i].gran_sizek, &gran_factor),
chunk_base = to_size_factor(result[i].chunk_sizek, &chunk_factor),
lose_base = to_size_factor(result[i].lose_cover_sizek, &lose_factor),
printk(KERN_INFO "%sgran_size: %ld%c \tchunk_size: %ld%c \t",
result[i].bad?"*BAD*":" ",
gran_base, gran_factor, chunk_base, chunk_factor);
printk(KERN_CONT "num_reg: %d \tlose cover RAM: %s%ld%c\n",
result[i].num_reg, result[i].bad?"-":"",
result[i].lose_cover_sizek >> 10);
lose_base, lose_factor);
}
/* try to find the optimal index */
@ -1339,10 +1440,8 @@ static int __init mtrr_cleanup(unsigned address_bits)
nr_mtrr_spare_reg = num_var_ranges - 1;
num_reg_good = -1;
for (i = num_var_ranges - nr_mtrr_spare_reg; i > 0; i--) {
if (!min_loss_pfn[i]) {
if (!min_loss_pfn[i])
num_reg_good = i;
break;
}
}
index_good = -1;
@ -1358,21 +1457,26 @@ static int __init mtrr_cleanup(unsigned address_bits)
}
if (index_good != -1) {
char gran_factor, chunk_factor, lose_factor;
unsigned long gran_base, chunk_base, lose_base;
printk(KERN_INFO "Found optimal setting for mtrr clean up\n");
i = index_good;
printk(KERN_INFO "gran_size: %ldM \tchunk_size: %ldM \t",
result[i].gran_sizek >> 10,
result[i].chunk_sizek >> 10);
printk(KERN_CONT "num_reg: %d \tlose RAM: %ldM\n",
result[i].num_reg,
result[i].lose_cover_sizek >> 10);
gran_base = to_size_factor(result[i].gran_sizek, &gran_factor),
chunk_base = to_size_factor(result[i].chunk_sizek, &chunk_factor),
lose_base = to_size_factor(result[i].lose_cover_sizek, &lose_factor),
printk(KERN_INFO "gran_size: %ld%c \tchunk_size: %ld%c \t",
gran_base, gran_factor, chunk_base, chunk_factor);
printk(KERN_CONT "num_reg: %d \tlose RAM: %ld%c\n",
result[i].num_reg, lose_base, lose_factor);
/* convert ranges to var ranges state */
chunk_size = result[i].chunk_sizek;
chunk_size <<= 10;
gran_size = result[i].gran_sizek;
gran_size <<= 10;
debug_print = 1;
debug_print++;
x86_setup_var_mtrrs(range, nr_range, chunk_size, gran_size);
debug_print--;
set_var_mtrr_all(address_bits);
return 1;
}

86
arch/x86/kernel/cpu/perfctr-watchdog.c
View File

@ -295,13 +295,19 @@ static int setup_k7_watchdog(unsigned nmi_hz)
/* setup the timer */
wrmsr(evntsel_msr, evntsel, 0);
write_watchdog_counter(perfctr_msr, "K7_PERFCTR0",nmi_hz);
/* initialize the wd struct before enabling */
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = 0; /* unused */
/* ok, everything is initialized, announce that we're set */
cpu_nmi_set_wd_enabled();
apic_write(APIC_LVTPC, APIC_DM_NMI);
evntsel |= K7_EVNTSEL_ENABLE;
wrmsr(evntsel_msr, evntsel, 0);
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = 0; /* unused */
return 1;
}
@ -379,13 +385,19 @@ static int setup_p6_watchdog(unsigned nmi_hz)
wrmsr(evntsel_msr, evntsel, 0);
nmi_hz = adjust_for_32bit_ctr(nmi_hz);
write_watchdog_counter32(perfctr_msr, "P6_PERFCTR0",nmi_hz);
/* initialize the wd struct before enabling */
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = 0; /* unused */
/* ok, everything is initialized, announce that we're set */
cpu_nmi_set_wd_enabled();
apic_write(APIC_LVTPC, APIC_DM_NMI);
evntsel |= P6_EVNTSEL0_ENABLE;
wrmsr(evntsel_msr, evntsel, 0);
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = 0; /* unused */
return 1;
}
@ -432,6 +444,27 @@ static const struct wd_ops p6_wd_ops = {
#define P4_CCCR_ENABLE (1 << 12)
#define P4_CCCR_OVF (1 << 31)
#define P4_CONTROLS 18
static unsigned int p4_controls[18] = {
MSR_P4_BPU_CCCR0,
MSR_P4_BPU_CCCR1,
MSR_P4_BPU_CCCR2,
MSR_P4_BPU_CCCR3,
MSR_P4_MS_CCCR0,
MSR_P4_MS_CCCR1,
MSR_P4_MS_CCCR2,
MSR_P4_MS_CCCR3,
MSR_P4_FLAME_CCCR0,
MSR_P4_FLAME_CCCR1,
MSR_P4_FLAME_CCCR2,
MSR_P4_FLAME_CCCR3,
MSR_P4_IQ_CCCR0,
MSR_P4_IQ_CCCR1,
MSR_P4_IQ_CCCR2,
MSR_P4_IQ_CCCR3,
MSR_P4_IQ_CCCR4,
MSR_P4_IQ_CCCR5,
};
/*
* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter
* CRU_ESCR0 (with any non-null event selector) through a complemented
@ -473,6 +506,26 @@ static int setup_p4_watchdog(unsigned nmi_hz)
evntsel_msr = MSR_P4_CRU_ESCR0;
cccr_msr = MSR_P4_IQ_CCCR0;
cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4);
/*
* If we're on the kdump kernel or other situation, we may
* still have other performance counter registers set to
* interrupt and they'll keep interrupting forever because
* of the P4_CCCR_OVF quirk. So we need to ACK all the
* pending interrupts and disable all the registers here,
* before reenabling the NMI delivery. Refer to p4_rearm()
* about the P4_CCCR_OVF quirk.
*/
if (reset_devices) {
unsigned int low, high;
int i;
for (i = 0; i < P4_CONTROLS; i++) {
rdmsr(p4_controls[i], low, high);
low &= ~(P4_CCCR_ENABLE | P4_CCCR_OVF);
wrmsr(p4_controls[i], low, high);
}
}
} else {
/* logical cpu 1 */
perfctr_msr = MSR_P4_IQ_PERFCTR1;
@ -499,12 +552,17 @@ static int setup_p4_watchdog(unsigned nmi_hz)
wrmsr(evntsel_msr, evntsel, 0);
wrmsr(cccr_msr, cccr_val, 0);
write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0", nmi_hz);
apic_write(APIC_LVTPC, APIC_DM_NMI);
cccr_val |= P4_CCCR_ENABLE;
wrmsr(cccr_msr, cccr_val, 0);
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = cccr_msr;
/* ok, everything is initialized, announce that we're set */
cpu_nmi_set_wd_enabled();
apic_write(APIC_LVTPC, APIC_DM_NMI);
cccr_val |= P4_CCCR_ENABLE;
wrmsr(cccr_msr, cccr_val, 0);
return 1;
}
@ -620,13 +678,17 @@ static int setup_intel_arch_watchdog(unsigned nmi_hz)
wrmsr(evntsel_msr, evntsel, 0);
nmi_hz = adjust_for_32bit_ctr(nmi_hz);
write_watchdog_counter32(perfctr_msr, "INTEL_ARCH_PERFCTR0", nmi_hz);
apic_write(APIC_LVTPC, APIC_DM_NMI);
evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE;
wrmsr(evntsel_msr, evntsel, 0);
wd->perfctr_msr = perfctr_msr;
wd->evntsel_msr = evntsel_msr;
wd->cccr_msr = 0; /* unused */
/* ok, everything is initialized, announce that we're set */
cpu_nmi_set_wd_enabled();
apic_write(APIC_LVTPC, APIC_DM_NMI);
evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE;
wrmsr(evntsel_msr, evntsel, 0);
intel_arch_wd_ops.checkbit = 1ULL << (eax.split.bit_width - 1);
return 1;
}

1
arch/x86/kernel/cpuid.c
View File

@ -36,7 +36,6 @@
#include <linux/smp_lock.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/device.h>
#include <linux/cpu.h>
#include <linux/notifier.h>

11
arch/x86/kernel/crash_dump_64.c
View File

@ -7,9 +7,8 @@
#include <linux/errno.h>
#include <linux/crash_dump.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/uaccess.h>
#include <linux/io.h>
/**
* copy_oldmem_page - copy one page from "oldmem"
@ -33,14 +32,16 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
return 0;
vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE);
if (!vaddr)
return -ENOMEM;
if (userbuf) {
if (copy_to_user(buf, (vaddr + offset), csize)) {
if (copy_to_user(buf, vaddr + offset, csize)) {
iounmap(vaddr);
return -EFAULT;
}
} else
memcpy(buf, (vaddr + offset), csize);
memcpy(buf, vaddr + offset, csize);
iounmap(vaddr);
return csize;

6
arch/x86/kernel/efi.c
View File

@ -414,9 +414,11 @@ void __init efi_init(void)
if (memmap.map == NULL)
printk(KERN_ERR "Could not map the EFI memory map!\n");
memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size);
if (memmap.desc_size != sizeof(efi_memory_desc_t))
printk(KERN_WARNING "Kernel-defined memdesc"
"doesn't match the one from EFI!\n");
printk(KERN_WARNING
"Kernel-defined memdesc doesn't match the one from EFI!\n");
if (add_efi_memmap)
do_add_efi_memmap();

4
arch/x86/kernel/entry_64.S
View File

@ -275,9 +275,9 @@ ENTRY(native_usergs_sysret64)
ENTRY(ret_from_fork)
CFI_DEFAULT_STACK
push kernel_eflags(%rip)
CFI_ADJUST_CFA_OFFSET 4
CFI_ADJUST_CFA_OFFSET 8
popf # reset kernel eflags
CFI_ADJUST_CFA_OFFSET -4
CFI_ADJUST_CFA_OFFSET -8
call schedule_tail
GET_THREAD_INFO(%rcx)
testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),TI_flags(%rcx)

3
arch/x86/kernel/head64.c
View File

@ -108,12 +108,11 @@ void __init x86_64_start_kernel(char * real_mode_data)
}
load_idt((const struct desc_ptr *)&idt_descr);
if (console_loglevel == 10)
early_printk("Kernel alive\n");
x86_64_init_pda();
early_printk("Kernel really alive\n");
x86_64_start_reservations(real_mode_data);
}

2
arch/x86/kernel/irq_32.c
View File

@ -325,7 +325,7 @@ skip:
for_each_online_cpu(j)
seq_printf(p, "%10u ",
per_cpu(irq_stat,j).irq_call_count);
seq_printf(p, " function call interrupts\n");
seq_printf(p, " Function call interrupts\n");
seq_printf(p, "TLB: ");
for_each_online_cpu(j)
seq_printf(p, "%10u ",

2
arch/x86/kernel/irq_64.c
View File

@ -129,7 +129,7 @@ skip:
seq_printf(p, "CAL: ");
for_each_online_cpu(j)
seq_printf(p, "%10u ", cpu_pda(j)->irq_call_count);
seq_printf(p, " function call interrupts\n");
seq_printf(p, " Function call interrupts\n");
seq_printf(p, "TLB: ");
for_each_online_cpu(j)
seq_printf(p, "%10u ", cpu_pda(j)->irq_tlb_count);

2
arch/x86/kernel/kvm.c
View File

@ -178,7 +178,7 @@ static void kvm_flush_tlb(void)
kvm_deferred_mmu_op(&ftlb, sizeof ftlb);
}
static void kvm_release_pt(u32 pfn)
static void kvm_release_pt(unsigned long pfn)
{
struct kvm_mmu_op_release_pt rpt = {
.header.op = KVM_MMU_OP_RELEASE_PT,

11
arch/x86/kernel/nmi.c
View File

@ -299,6 +299,15 @@ void acpi_nmi_disable(void)
on_each_cpu(__acpi_nmi_disable, NULL, 1);
}
/*
* This function is called as soon the LAPIC NMI watchdog driver has everything
* in place and it's ready to check if the NMIs belong to the NMI watchdog
*/
void cpu_nmi_set_wd_enabled(void)
{
__get_cpu_var(wd_enabled) = 1;
}
void setup_apic_nmi_watchdog(void *unused)
{
if (__get_cpu_var(wd_enabled))
@ -311,8 +320,6 @@ void setup_apic_nmi_watchdog(void *unused)
switch (nmi_watchdog) {
case NMI_LOCAL_APIC:
/* enable it before to avoid race with handler */
__get_cpu_var(wd_enabled) = 1;
if (lapic_watchdog_init(nmi_hz) < 0) {
__get_cpu_var(wd_enabled) = 0;
return;

6
arch/x86/kernel/olpc.c
View File

@ -190,12 +190,12 @@ EXPORT_SYMBOL_GPL(olpc_ec_cmd);
static void __init platform_detect(void)
{
size_t propsize;
u32 rev;
__be32 rev;
if (ofw("getprop", 4, 1, NULL, "board-revision-int", &rev, 4,
&propsize) || propsize != 4) {
printk(KERN_ERR "ofw: getprop call failed!\n");
rev = 0;
rev = cpu_to_be32(0);
}
olpc_platform_info.boardrev = be32_to_cpu(rev);
}
@ -203,7 +203,7 @@ static void __init platform_detect(void)
static void __init platform_detect(void)
{
/* stopgap until OFW support is added to the kernel */
olpc_platform_info.boardrev = be32_to_cpu(0xc2);
olpc_platform_info.boardrev = 0xc2;
}
#endif

1
arch/x86/kernel/paravirt.c
View File

@ -330,6 +330,7 @@ struct pv_cpu_ops pv_cpu_ops = {
#endif
.wbinvd = native_wbinvd,
.read_msr = native_read_msr_safe,
.read_msr_amd = native_read_msr_amd_safe,
.write_msr = native_write_msr_safe,
.read_tsc = native_read_tsc,
.read_pmc = native_read_pmc,

2
arch/x86/kernel/paravirt_patch_32.c
View File

@ -23,7 +23,7 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
start = start_##ops##_##x; \
end = end_##ops##_##x; \
goto patch_site
switch(type) {
switch (type) {
PATCH_SITE(pv_irq_ops, irq_disable);
PATCH_SITE(pv_irq_ops, irq_enable);
PATCH_SITE(pv_irq_ops, restore_fl);

2
arch/x86/kernel/pci-dma.c
View File

@ -82,7 +82,7 @@ void __init dma32_reserve_bootmem(void)
* using 512M as goal
*/
align = 64ULL<<20;
size = round_up(dma32_bootmem_size, align);
size = roundup(dma32_bootmem_size, align);
dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align,
512ULL<<20);
if (dma32_bootmem_ptr)

47
arch/x86/kernel/pci-gart_64.c
View File

@ -82,7 +82,8 @@ AGPEXTERN __u32 *agp_gatt_table;
static unsigned long next_bit; /* protected by iommu_bitmap_lock */
static int need_flush; /* global flush state. set for each gart wrap */
static unsigned long alloc_iommu(struct device *dev, int size)
static unsigned long alloc_iommu(struct device *dev, int size,
unsigned long align_mask)
{
unsigned long offset, flags;
unsigned long boundary_size;
@ -90,16 +91,17 @@ static unsigned long alloc_iommu(struct device *dev, int size)
base_index = ALIGN(iommu_bus_base & dma_get_seg_boundary(dev),
PAGE_SIZE) >> PAGE_SHIFT;
boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
boundary_size = ALIGN((unsigned long long)dma_get_seg_boundary(dev) + 1,
PAGE_SIZE) >> PAGE_SHIFT;
spin_lock_irqsave(&iommu_bitmap_lock, flags);
offset = iommu_area_alloc(iommu_gart_bitmap, iommu_pages, next_bit,
size, base_index, boundary_size, 0);
size, base_index, boundary_size, align_mask);
if (offset == -1) {
need_flush = 1;
offset = iommu_area_alloc(iommu_gart_bitmap, iommu_pages, 0,
size, base_index, boundary_size, 0);
size, base_index, boundary_size,
align_mask);
}
if (offset != -1) {
next_bit = offset+size;
@ -236,10 +238,10 @@ nonforced_iommu(struct device *dev, unsigned long addr, size_t size)
* Caller needs to check if the iommu is needed and flush.
*/
static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
size_t size, int dir)
size_t size, int dir, unsigned long align_mask)
{
unsigned long npages = iommu_num_pages(phys_mem, size);
unsigned long iommu_page = alloc_iommu(dev, npages);
unsigned long iommu_page = alloc_iommu(dev, npages, align_mask);
int i;
if (iommu_page == -1) {
@ -262,7 +264,11 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem,
static dma_addr_t
gart_map_simple(struct device *dev, phys_addr_t paddr, size_t size, int dir)
{
dma_addr_t map = dma_map_area(dev, paddr, size, dir);
dma_addr_t map;
unsigned long align_mask;
align_mask = (1UL << get_order(size)) - 1;
map = dma_map_area(dev, paddr, size, dir, align_mask);
flush_gart();
@ -281,7 +287,8 @@ gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir)
if (!need_iommu(dev, paddr, size))
return paddr;
bus = gart_map_simple(dev, paddr, size, dir);
bus = dma_map_area(dev, paddr, size, dir, 0);
flush_gart();
return bus;
}
@ -340,7 +347,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg,
unsigned long addr = sg_phys(s);
if (nonforced_iommu(dev, addr, s->length)) {
addr = dma_map_area(dev, addr, s->length, dir);
addr = dma_map_area(dev, addr, s->length, dir, 0);
if (addr == bad_dma_address) {
if (i > 0)
gart_unmap_sg(dev, sg, i, dir);
@ -362,7 +369,7 @@ static int __dma_map_cont(struct device *dev, struct scatterlist *start,
int nelems, struct scatterlist *sout,
unsigned long pages)
{
unsigned long iommu_start = alloc_iommu(dev, pages);
unsigned long iommu_start = alloc_iommu(dev, pages, 0);
unsigned long iommu_page = iommu_start;
struct scatterlist *s;
int i;
@ -626,7 +633,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
struct pci_dev *dev;
void *gatt;
int i, error;
unsigned long start_pfn, end_pfn;
printk(KERN_INFO "PCI-DMA: Disabling AGP.\n");
aper_size = aper_base = info->aper_size = 0;
@ -672,12 +678,6 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
printk(KERN_INFO "PCI-DMA: aperture base @ %x size %u KB\n",
aper_base, aper_size>>10);
/* need to map that range */
end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
if (end_pfn > max_low_pfn_mapped) {
start_pfn = (aper_base>>PAGE_SHIFT);
init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
}
return 0;
nommu:
@ -727,7 +727,8 @@ void __init gart_iommu_init(void)
{
struct agp_kern_info info;
unsigned long iommu_start;
unsigned long aper_size;
unsigned long aper_base, aper_size;
unsigned long start_pfn, end_pfn;
unsigned long scratch;
long i;
@ -765,8 +766,16 @@ void __init gart_iommu_init(void)
return;
}
/* need to map that range */
aper_size = info.aper_size << 20;
aper_base = info.aper_base;
end_pfn = (aper_base>>PAGE_SHIFT) + (aper_size>>PAGE_SHIFT);
if (end_pfn > max_low_pfn_mapped) {
start_pfn = (aper_base>>PAGE_SHIFT);
init_memory_mapping(start_pfn<<PAGE_SHIFT, end_pfn<<PAGE_SHIFT);
}
printk(KERN_INFO "PCI-DMA: using GART IOMMU.\n");
aper_size = info.aper_size * 1024 * 1024;
iommu_size = check_iommu_size(info.aper_base, aper_size);
iommu_pages = iommu_size >> PAGE_SHIFT;

13
arch/x86/kernel/pcspeaker.c
View File

@ -1,20 +1,13 @@
#include <linux/platform_device.h>
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/init.h>
static __init int add_pcspkr(void)
{
struct platform_device *pd;
int ret;
pd = platform_device_alloc("pcspkr", -1);
if (!pd)
return -ENOMEM;
pd = platform_device_register_simple("pcspkr", -1, NULL, 0);
ret = platform_device_add(pd);
if (ret)
platform_device_put(pd);
return ret;
return IS_ERR(pd) ? PTR_ERR(pd) : 0;
}
device_initcall(add_pcspkr);

1
arch/x86/kernel/process.c
View File

@ -185,6 +185,7 @@ static void mwait_idle(void)
static void poll_idle(void)
{
local_irq_enable();
while (!need_resched())
cpu_relax();
}

10
arch/x86/kernel/process_32.c
View File

@ -37,6 +37,7 @@
#include <linux/tick.h>
#include <linux/percpu.h>
#include <linux/prctl.h>
#include <linux/dmi.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@ -163,6 +164,7 @@ void __show_registers(struct pt_regs *regs, int all)
unsigned long d0, d1, d2, d3, d6, d7;
unsigned long sp;
unsigned short ss, gs;
const char *board;
if (user_mode_vm(regs)) {
sp = regs->sp;
@ -175,11 +177,15 @@ void __show_registers(struct pt_regs *regs, int all)
}
printk("\n");
printk("Pid: %d, comm: %s %s (%s %.*s)\n",
board = dmi_get_system_info(DMI_PRODUCT_NAME);
if (!board)
board = "";
printk("Pid: %d, comm: %s %s (%s %.*s) %s\n",
task_pid_nr(current), current->comm,
print_tainted(), init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
init_utsname()->version, board);
printk("EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
(u16)regs->cs, regs->ip, regs->flags,

57
arch/x86/kernel/process_64.c
View File

@ -37,11 +37,11 @@
#include <linux/kdebug.h>
#include <linux/tick.h>
#include <linux/prctl.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/i387.h>
#include <asm/mmu_context.h>
@ -89,7 +89,7 @@ void exit_idle(void)
#ifdef CONFIG_HOTPLUG_CPU
DECLARE_PER_CPU(int, cpu_state);
#include <asm/nmi.h>
#include <linux/nmi.h>
/* We halt the CPU with physical CPU hotplug */
static inline void play_dead(void)
{
@ -154,7 +154,7 @@ void cpu_idle(void)
}
/* Prints also some state that isn't saved in the pt_regs */
void __show_regs(struct pt_regs * regs)
void __show_regs(struct pt_regs *regs)
{
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs;
unsigned long d0, d1, d2, d3, d6, d7;
@ -163,24 +163,24 @@ void __show_regs(struct pt_regs * regs)
printk("\n");
print_modules();
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
printk(KERN_INFO "Pid: %d, comm: %.20s %s %s %.*s\n",
current->pid, current->comm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
printk(KERN_INFO "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
printk_address(regs->ip, 1);
printk("RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss, regs->sp,
regs->flags);
printk("RAX: %016lx RBX: %016lx RCX: %016lx\n",
printk(KERN_INFO "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss,
regs->sp, regs->flags);
printk(KERN_INFO "RAX: %016lx RBX: %016lx RCX: %016lx\n",
regs->ax, regs->bx, regs->cx);
printk("RDX: %016lx RSI: %016lx RDI: %016lx\n",
printk(KERN_INFO "RDX: %016lx RSI: %016lx RDI: %016lx\n",
regs->dx, regs->si, regs->di);
printk("RBP: %016lx R08: %016lx R09: %016lx\n",
printk(KERN_INFO "RBP: %016lx R08: %016lx R09: %016lx\n",
regs->bp, regs->r8, regs->r9);
printk("R10: %016lx R11: %016lx R12: %016lx\n",
printk(KERN_INFO "R10: %016lx R11: %016lx R12: %016lx\n",
regs->r10, regs->r11, regs->r12);
printk("R13: %016lx R14: %016lx R15: %016lx\n",
printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n",
regs->r13, regs->r14, regs->r15);
asm("movl %%ds,%0" : "=r" (ds));
@ -198,24 +198,26 @@ void __show_regs(struct pt_regs * regs)
cr3 = read_cr3();
cr4 = read_cr4();
printk("FS: %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
fs,fsindex,gs,gsindex,shadowgs);
printk("CS: %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds, es, cr0);
printk("CR2: %016lx CR3: %016lx CR4: %016lx\n", cr2, cr3, cr4);
printk(KERN_INFO "FS: %016lx(%04x) GS:%016lx(%04x) knlGS:%016lx\n",
fs, fsindex, gs, gsindex, shadowgs);
printk(KERN_INFO "CS: %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds,
es, cr0);
printk(KERN_INFO "CR2: %016lx CR3: %016lx CR4: %016lx\n", cr2, cr3,
cr4);
get_debugreg(d0, 0);
get_debugreg(d1, 1);
get_debugreg(d2, 2);
printk("DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2);
printk(KERN_INFO "DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2);
get_debugreg(d3, 3);
get_debugreg(d6, 6);
get_debugreg(d7, 7);
printk("DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7);
printk(KERN_INFO "DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7);
}
void show_regs(struct pt_regs *regs)
{
printk("CPU %d:", smp_processor_id());
printk(KERN_INFO "CPU %d:", smp_processor_id());
__show_regs(regs);
show_trace(NULL, regs, (void *)(regs + 1), regs->bp);
}
@ -324,10 +326,10 @@ void prepare_to_copy(struct task_struct *tsk)
int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
unsigned long unused,
struct task_struct * p, struct pt_regs * regs)
struct task_struct *p, struct pt_regs *regs)
{
int err;
struct pt_regs * childregs;
struct pt_regs *childregs;
struct task_struct *me = current;
childregs = ((struct pt_regs *)
@ -568,7 +570,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
unsigned fsindex, gsindex;
/* we're going to use this soon, after a few expensive things */
if (next_p->fpu_counter>5)
if (next_p->fpu_counter > 5)
prefetch(next->xstate);
/*
@ -688,7 +690,7 @@ long sys_execve(char __user *name, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs)
{
long error;
char * filename;
char *filename;
filename = getname(name);
error = PTR_ERR(filename);
@ -746,10 +748,10 @@ asmlinkage long sys_vfork(struct pt_regs *regs)
unsigned long get_wchan(struct task_struct *p)
{
unsigned long stack;
u64 fp,ip;
u64 fp, ip;
int count = 0;
if (!p || p == current || p->state==TASK_RUNNING)
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
stack = (unsigned long)task_stack_page(p);
if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE)
@ -848,8 +850,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr)
rdmsrl(MSR_KERNEL_GS_BASE, base);
else
base = task->thread.gs;
}
else
} else
base = task->thread.gs;
ret = put_user(base, (unsigned long __user *)addr);
break;

6
arch/x86/kernel/reboot.c
View File

@ -29,7 +29,11 @@ EXPORT_SYMBOL(pm_power_off);
static const struct desc_ptr no_idt = {};
static int reboot_mode;
enum reboot_type reboot_type = BOOT_KBD;
/*
* Keyboard reset and triple fault may result in INIT, not RESET, which
* doesn't work when we're in vmx root mode. Try ACPI first.
*/
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)

16
arch/x86/kernel/setup.c
View File

@ -223,6 +223,9 @@ unsigned long saved_video_mode;
#define RAMDISK_LOAD_FLAG 0x4000
static char __initdata command_line[COMMAND_LINE_SIZE];
#ifdef CONFIG_CMDLINE_BOOL
static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
#endif
#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
struct edd edd;
@ -665,6 +668,19 @@ void __init setup_arch(char **cmdline_p)
bss_resource.start = virt_to_phys(&__bss_start);
bss_resource.end = virt_to_phys(&__bss_stop)-1;
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
#else
if (builtin_cmdline[0]) {
/* append boot loader cmdline to builtin */
strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
#endif
#endif
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
*cmdline_p = command_line;

9
arch/x86/kernel/setup_percpu.c
View File

@ -162,9 +162,16 @@ void __init setup_per_cpu_areas(void)
printk(KERN_INFO
"cpu %d has no node %d or node-local memory\n",
cpu, node);
if (ptr)
printk(KERN_DEBUG "per cpu data for cpu%d at %016lx\n",
cpu, __pa(ptr));
}
else
else {
ptr = alloc_bootmem_pages_node(NODE_DATA(node), size);
if (ptr)
printk(KERN_DEBUG "per cpu data for cpu%d on node%d at %016lx\n",
cpu, node, __pa(ptr));
}
#endif
per_cpu_offset(cpu) = ptr - __per_cpu_start;
memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);

5
arch/x86/kernel/sigframe.h
View File

@ -24,4 +24,9 @@ struct rt_sigframe {
struct ucontext uc;
struct siginfo info;
};
int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs);
int ia32_setup_frame(int sig, struct k_sigaction *ka,
sigset_t *set, struct pt_regs *regs);
#endif

26
arch/x86/kernel/signal_64.c
View File

@ -20,9 +20,10 @@
#include <linux/stddef.h>
#include <linux/personality.h>
#include <linux/compiler.h>
#include <linux/uaccess.h>
#include <asm/processor.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/i387.h>
#include <asm/proto.h>
#include <asm/ia32_unistd.h>
@ -44,11 +45,6 @@
# define FIX_EFLAGS __FIX_EFLAGS
#endif
int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs * regs);
int ia32_setup_frame(int sig, struct k_sigaction *ka,
sigset_t *set, struct pt_regs * regs);
asmlinkage long
sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
struct pt_regs *regs)
@ -131,7 +127,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
/* Always make any pending restarted system calls return -EINTR */
current_thread_info()->restart_block.fn = do_no_restart_syscall;
#define COPY(x) err |= __get_user(regs->x, &sc->x)
#define COPY(x) (err |= __get_user(regs->x, &sc->x))
COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
COPY(dx); COPY(cx); COPY(ip);
@ -161,7 +157,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
}
{
struct _fpstate __user * buf;
struct _fpstate __user *buf;
err |= __get_user(buf, &sc->fpstate);
if (buf) {
@ -211,7 +207,7 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
return ax;
badframe:
signal_fault(regs,frame,"sigreturn");
signal_fault(regs, frame, "sigreturn");
return 0;
}
@ -220,7 +216,8 @@ badframe:
*/
static inline int
setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned long mask, struct task_struct *me)
setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
unsigned long mask, struct task_struct *me)
{
int err = 0;
@ -276,7 +273,7 @@ get_stack(struct k_sigaction *ka, struct pt_regs *regs, unsigned long size)
}
static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs * regs)
sigset_t *set, struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
struct _fpstate __user *fp = NULL;
@ -429,9 +426,9 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
regs->flags &= ~X86_EFLAGS_TF;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NODEFER))
sigaddset(&current->blocked,sig);
sigaddset(&current->blocked, sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
@ -545,7 +542,8 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
struct task_struct *me = current;
if (show_unhandled_signals && printk_ratelimit()) {
printk("%s[%d] bad frame in %s frame:%p ip:%lx sp:%lx orax:%lx",
me->comm,me->pid,where,frame,regs->ip,regs->sp,regs->orig_ax);
me->comm, me->pid, where, frame, regs->ip,
regs->sp, regs->orig_ax);
print_vma_addr(" in ", regs->ip);
printk("\n");
}

5
arch/x86/kernel/smpboot.c
View File

@ -1313,16 +1313,13 @@ __init void prefill_possible_map(void)
if (!num_processors)
num_processors = 1;
#ifdef CONFIG_HOTPLUG_CPU
if (additional_cpus == -1) {
if (disabled_cpus > 0)
additional_cpus = disabled_cpus;
else
additional_cpus = 0;
}
#else
additional_cpus = 0;
#endif
possible = num_processors + additional_cpus;
if (possible > NR_CPUS)
possible = NR_CPUS;

15
arch/x86/kernel/sys_x86_64.c
View File

@ -13,16 +13,17 @@
#include <linux/utsname.h>
#include <linux/personality.h>
#include <linux/random.h>
#include <linux/uaccess.h>
#include <asm/uaccess.h>
#include <asm/ia32.h>
#include <asm/syscalls.h>
asmlinkage long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags,
asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long off)
{
long error;
struct file * file;
struct file *file;
error = -EINVAL;
if (off & ~PAGE_MASK)
@ -178,7 +179,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
vma = find_vma(mm, addr-len);
if (!vma || addr <= vma->vm_start)
/* remember the address as a hint for next time */
return (mm->free_area_cache = addr-len);
return mm->free_area_cache = addr-len;
}
if (mm->mmap_base < len)
@ -195,7 +196,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
vma = find_vma(mm, addr);
if (!vma || addr+len <= vma->vm_start)
/* remember the address as a hint for next time */
return (mm->free_area_cache = addr);
return mm->free_area_cache = addr;
/* remember the largest hole we saw so far */
if (addr + mm->cached_hole_size < vma->vm_start)
@ -225,11 +226,11 @@ bottomup:
}
asmlinkage long sys_uname(struct new_utsname __user * name)
asmlinkage long sys_uname(struct new_utsname __user *name)
{
int err;
down_read(&uts_sem);
err = copy_to_user(name, utsname(), sizeof (*name));
err = copy_to_user(name, utsname(), sizeof(*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);

56
arch/x86/kernel/traps_64.c
View File

@ -32,6 +32,8 @@
#include <linux/bug.h>
#include <linux/nmi.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/io.h>
#if defined(CONFIG_EDAC)
#include <linux/edac.h>
@ -45,9 +47,6 @@
#include <asm/unwind.h>
#include <asm/desc.h>
#include <asm/i387.h>
#include <asm/nmi.h>
#include <asm/smp.h>
#include <asm/io.h>
#include <asm/pgalloc.h>
#include <asm/proto.h>
#include <asm/pda.h>
@ -85,7 +84,8 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
void printk_address(unsigned long address, int reliable)
{
printk(" [<%016lx>] %s%pS\n", address, reliable ? "": "? ", (void *) address);
printk(" [<%016lx>] %s%pS\n",
address, reliable ? "" : "? ", (void *) address);
}
static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
@ -98,7 +98,8 @@ static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
[STACKFAULT_STACK - 1] = "#SS",
[MCE_STACK - 1] = "#MC",
#if DEBUG_STKSZ > EXCEPTION_STKSZ
[N_EXCEPTION_STACKS ... N_EXCEPTION_STACKS + DEBUG_STKSZ / EXCEPTION_STKSZ - 2] = "#DB[?]"
[N_EXCEPTION_STACKS ...
N_EXCEPTION_STACKS + DEBUG_STKSZ / EXCEPTION_STKSZ - 2] = "#DB[?]"
#endif
};
unsigned k;
@ -219,7 +220,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
const struct stacktrace_ops *ops, void *data)
{
const unsigned cpu = get_cpu();
unsigned long *irqstack_end = (unsigned long*)cpu_pda(cpu)->irqstackptr;
unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr;
unsigned used = 0;
struct thread_info *tinfo;
@ -237,7 +238,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
if (!bp) {
if (task == current) {
/* Grab bp right from our regs */
asm("movq %%rbp, %0" : "=r" (bp) :);
asm("movq %%rbp, %0" : "=r" (bp) : );
} else {
/* bp is the last reg pushed by switch_to */
bp = *(unsigned long *) task->thread.sp;
@ -339,9 +340,8 @@ static void
show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack, unsigned long bp, char *log_lvl)
{
printk("\nCall Trace:\n");
printk("Call Trace:\n");
dump_trace(task, regs, stack, bp, &print_trace_ops, log_lvl);
printk("\n");
}
void show_trace(struct task_struct *task, struct pt_regs *regs,
@ -357,11 +357,15 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack;
int i;
const int cpu = smp_processor_id();
unsigned long *irqstack_end = (unsigned long *) (cpu_pda(cpu)->irqstackptr);
unsigned long *irqstack = (unsigned long *) (cpu_pda(cpu)->irqstackptr - IRQSTACKSIZE);
unsigned long *irqstack_end =
(unsigned long *) (cpu_pda(cpu)->irqstackptr);
unsigned long *irqstack =
(unsigned long *) (cpu_pda(cpu)->irqstackptr - IRQSTACKSIZE);
// debugging aid: "show_stack(NULL, NULL);" prints the
// back trace for this cpu.
/*
* debugging aid: "show_stack(NULL, NULL);" prints the
* back trace for this cpu.
*/
if (sp == NULL) {
if (task)
@ -386,6 +390,7 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
printk(" %016lx", *stack++);
touch_nmi_watchdog();
}
printk("\n");
show_trace_log_lvl(task, regs, sp, bp, log_lvl);
}
@ -404,7 +409,7 @@ void dump_stack(void)
#ifdef CONFIG_FRAME_POINTER
if (!bp)
asm("movq %%rbp, %0" : "=r" (bp):);
asm("movq %%rbp, %0" : "=r" (bp) : );
#endif
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
@ -414,7 +419,6 @@ void dump_stack(void)
init_utsname()->version);
show_trace(NULL, NULL, &stack, bp);
}
EXPORT_SYMBOL(dump_stack);
void show_registers(struct pt_regs *regs)
@ -443,7 +447,6 @@ void show_registers(struct pt_regs *regs)
printk("Stack: ");
show_stack_log_lvl(NULL, regs, (unsigned long *)sp,
regs->bp, "");
printk("\n");
printk(KERN_EMERG "Code: ");
@ -638,7 +641,7 @@ kernel_trap:
}
#define DO_ERROR(trapnr, signr, str, name) \
asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
asmlinkage void do_##name(struct pt_regs *regs, long error_code) \
{ \
if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) \
== NOTIFY_STOP) \
@ -648,7 +651,7 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
}
#define DO_ERROR_INFO(trapnr, signr, str, name, sicode, siaddr) \
asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
asmlinkage void do_##name(struct pt_regs *regs, long error_code) \
{ \
siginfo_t info; \
info.si_signo = signr; \
@ -683,7 +686,7 @@ asmlinkage void do_stack_segment(struct pt_regs *regs, long error_code)
preempt_conditional_cli(regs);
}
asmlinkage void do_double_fault(struct pt_regs * regs, long error_code)
asmlinkage void do_double_fault(struct pt_regs *regs, long error_code)
{
static const char str[] = "double fault";
struct task_struct *tsk = current;
@ -778,9 +781,10 @@ io_check_error(unsigned char reason, struct pt_regs *regs)
}
static notrace __kprobes void
unknown_nmi_error(unsigned char reason, struct pt_regs * regs)
unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
{
if (notify_die(DIE_NMIUNKNOWN, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP)
if (notify_die(DIE_NMIUNKNOWN, "nmi", regs, reason, 2, SIGINT) ==
NOTIFY_STOP)
return;
printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x.\n",
reason);
@ -891,7 +895,7 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
}
/* runs on IST stack. */
asmlinkage void __kprobes do_debug(struct pt_regs * regs,
asmlinkage void __kprobes do_debug(struct pt_regs *regs,
unsigned long error_code)
{
struct task_struct *tsk = current;
@ -1092,7 +1096,7 @@ asmlinkage void do_simd_coprocessor_error(struct pt_regs *regs)
force_sig_info(SIGFPE, &info, task);
}
asmlinkage void do_spurious_interrupt_bug(struct pt_regs * regs)
asmlinkage void do_spurious_interrupt_bug(struct pt_regs *regs)
{
}
@ -1149,8 +1153,10 @@ void __init trap_init(void)
set_intr_gate(0, &divide_error);
set_intr_gate_ist(1, &debug, DEBUG_STACK);
set_intr_gate_ist(2, &nmi, NMI_STACK);
set_system_gate_ist(3, &int3, DEBUG_STACK); /* int3 can be called from all */
set_system_gate(4, &overflow); /* int4 can be called from all */
/* int3 can be called from all */
set_system_gate_ist(3, &int3, DEBUG_STACK);
/* int4 can be called from all */
set_system_gate(4, &overflow);
set_intr_gate(5, &bounds);
set_intr_gate(6, &invalid_op);
set_intr_gate(7, &device_not_available);

290
arch/x86/kernel/tsc.c
View File

@ -104,7 +104,7 @@ __setup("notsc", notsc_setup);
/*
* Read TSC and the reference counters. Take care of SMI disturbance
*/
static u64 tsc_read_refs(u64 *pm, u64 *hpet)
static u64 tsc_read_refs(u64 *p, int hpet)
{
u64 t1, t2;
int i;
@ -112,9 +112,9 @@ static u64 tsc_read_refs(u64 *pm, u64 *hpet)
for (i = 0; i < MAX_RETRIES; i++) {
t1 = get_cycles();
if (hpet)
*hpet = hpet_readl(HPET_COUNTER) & 0xFFFFFFFF;
*p = hpet_readl(HPET_COUNTER) & 0xFFFFFFFF;
else
*pm = acpi_pm_read_early();
*p = acpi_pm_read_early();
t2 = get_cycles();
if ((t2 - t1) < SMI_TRESHOLD)
return t2;
@ -122,6 +122,52 @@ static u64 tsc_read_refs(u64 *pm, u64 *hpet)
return ULLONG_MAX;
}
/*
* Calculate the TSC frequency from HPET reference
*/
static unsigned long calc_hpet_ref(u64 deltatsc, u64 hpet1, u64 hpet2)
{
u64 tmp;
if (hpet2 < hpet1)
hpet2 += 0x100000000ULL;
hpet2 -= hpet1;
tmp = ((u64)hpet2 * hpet_readl(HPET_PERIOD));
do_div(tmp, 1000000);
do_div(deltatsc, tmp);
return (unsigned long) deltatsc;
}
/*
* Calculate the TSC frequency from PMTimer reference
*/
static unsigned long calc_pmtimer_ref(u64 deltatsc, u64 pm1, u64 pm2)
{
u64 tmp;
if (!pm1 && !pm2)
return ULONG_MAX;
if (pm2 < pm1)
pm2 += (u64)ACPI_PM_OVRRUN;
pm2 -= pm1;
tmp = pm2 * 1000000000LL;
do_div(tmp, PMTMR_TICKS_PER_SEC);
do_div(deltatsc, tmp);
return (unsigned long) deltatsc;
}
#define CAL_MS 10
#define CAL_LATCH (CLOCK_TICK_RATE / (1000 / CAL_MS))
#define CAL_PIT_LOOPS 1000
#define CAL2_MS 50
#define CAL2_LATCH (CLOCK_TICK_RATE / (1000 / CAL2_MS))
#define CAL2_PIT_LOOPS 5000
/*
* Try to calibrate the TSC against the Programmable
* Interrupt Timer and return the frequency of the TSC
@ -129,7 +175,7 @@ static u64 tsc_read_refs(u64 *pm, u64 *hpet)
*
* Return ULONG_MAX on failure to calibrate.
*/
static unsigned long pit_calibrate_tsc(void)
static unsigned long pit_calibrate_tsc(u32 latch, unsigned long ms, int loopmin)
{
u64 tsc, t1, t2, delta;
unsigned long tscmin, tscmax;
@ -144,8 +190,8 @@ static unsigned long pit_calibrate_tsc(void)
* (LSB then MSB) to begin countdown.
*/
outb(0xb0, 0x43);
outb((CLOCK_TICK_RATE / (1000 / 50)) & 0xff, 0x42);
outb((CLOCK_TICK_RATE / (1000 / 50)) >> 8, 0x42);
outb(latch & 0xff, 0x42);
outb(latch >> 8, 0x42);
tsc = t1 = t2 = get_cycles();
@ -166,31 +212,154 @@ static unsigned long pit_calibrate_tsc(void)
/*
* Sanity checks:
*
* If we were not able to read the PIT more than 5000
* If we were not able to read the PIT more than loopmin
* times, then we have been hit by a massive SMI
*
* If the maximum is 10 times larger than the minimum,
* then we got hit by an SMI as well.
*/
if (pitcnt < 5000 || tscmax > 10 * tscmin)
if (pitcnt < loopmin || tscmax > 10 * tscmin)
return ULONG_MAX;
/* Calculate the PIT value */
delta = t2 - t1;
do_div(delta, 50);
do_div(delta, ms);
return delta;
}
/*
* This reads the current MSB of the PIT counter, and
* checks if we are running on sufficiently fast and
* non-virtualized hardware.
*
* Our expectations are:
*
* - the PIT is running at roughly 1.19MHz
*
* - each IO is going to take about 1us on real hardware,
* but we allow it to be much faster (by a factor of 10) or
* _slightly_ slower (ie we allow up to a 2us read+counter
* update - anything else implies a unacceptably slow CPU
* or PIT for the fast calibration to work.
*
* - with 256 PIT ticks to read the value, we have 214us to
* see the same MSB (and overhead like doing a single TSC
* read per MSB value etc).
*
* - We're doing 2 reads per loop (LSB, MSB), and we expect
* them each to take about a microsecond on real hardware.
* So we expect a count value of around 100. But we'll be
* generous, and accept anything over 50.
*
* - if the PIT is stuck, and we see *many* more reads, we
* return early (and the next caller of pit_expect_msb()
* then consider it a failure when they don't see the
* next expected value).
*
* These expectations mean that we know that we have seen the
* transition from one expected value to another with a fairly
* high accuracy, and we didn't miss any events. We can thus
* use the TSC value at the transitions to calculate a pretty
* good value for the TSC frequencty.
*/
static inline int pit_expect_msb(unsigned char val)
{
int count = 0;
for (count = 0; count < 50000; count++) {
/* Ignore LSB */
inb(0x42);
if (inb(0x42) != val)
break;
}
return count > 50;
}
/*
* How many MSB values do we want to see? We aim for a
* 15ms calibration, which assuming a 2us counter read
* error should give us roughly 150 ppm precision for
* the calibration.
*/
#define QUICK_PIT_MS 15
#define QUICK_PIT_ITERATIONS (QUICK_PIT_MS * PIT_TICK_RATE / 1000 / 256)
static unsigned long quick_pit_calibrate(void)
{
/* Set the Gate high, disable speaker */
outb((inb(0x61) & ~0x02) | 0x01, 0x61);
/*
* Counter 2, mode 0 (one-shot), binary count
*
* NOTE! Mode 2 decrements by two (and then the
* output is flipped each time, giving the same
* final output frequency as a decrement-by-one),
* so mode 0 is much better when looking at the
* individual counts.
*/
outb(0xb0, 0x43);
/* Start at 0xffff */
outb(0xff, 0x42);
outb(0xff, 0x42);
if (pit_expect_msb(0xff)) {
int i;
u64 t1, t2, delta;
unsigned char expect = 0xfe;
t1 = get_cycles();
for (i = 0; i < QUICK_PIT_ITERATIONS; i++, expect--) {
if (!pit_expect_msb(expect))
goto failed;
}
t2 = get_cycles();
/*
* Make sure we can rely on the second TSC timestamp:
*/
if (!pit_expect_msb(expect))
goto failed;
/*
* Ok, if we get here, then we've seen the
* MSB of the PIT decrement QUICK_PIT_ITERATIONS
* times, and each MSB had many hits, so we never
* had any sudden jumps.
*
* As a result, we can depend on there not being
* any odd delays anywhere, and the TSC reads are
* reliable.
*
* kHz = ticks / time-in-seconds / 1000;
* kHz = (t2 - t1) / (QPI * 256 / PIT_TICK_RATE) / 1000
* kHz = ((t2 - t1) * PIT_TICK_RATE) / (QPI * 256 * 1000)
*/
delta = (t2 - t1)*PIT_TICK_RATE;
do_div(delta, QUICK_PIT_ITERATIONS*256*1000);
printk("Fast TSC calibration using PIT\n");
return delta;
}
failed:
return 0;
}
/**
* native_calibrate_tsc - calibrate the tsc on boot
*/
unsigned long native_calibrate_tsc(void)
{
u64 tsc1, tsc2, delta, pm1, pm2, hpet1, hpet2;
u64 tsc1, tsc2, delta, ref1, ref2;
unsigned long tsc_pit_min = ULONG_MAX, tsc_ref_min = ULONG_MAX;
unsigned long flags;
int hpet = is_hpet_enabled(), i;
unsigned long flags, latch, ms, fast_calibrate;
int hpet = is_hpet_enabled(), i, loopmin;
local_irq_save(flags);
fast_calibrate = quick_pit_calibrate();
local_irq_restore(flags);
if (fast_calibrate)
return fast_calibrate;
/*
* Run 5 calibration loops to get the lowest frequency value
@ -216,7 +385,13 @@ unsigned long native_calibrate_tsc(void)
* calibration delay loop as we have to wait for a certain
* amount of time anyway.
*/
for (i = 0; i < 5; i++) {
/* Preset PIT loop values */
latch = CAL_LATCH;
ms = CAL_MS;
loopmin = CAL_PIT_LOOPS;
for (i = 0; i < 3; i++) {
unsigned long tsc_pit_khz;
/*
@ -226,16 +401,16 @@ unsigned long native_calibrate_tsc(void)
* read the end value.
*/
local_irq_save(flags);
tsc1 = tsc_read_refs(&pm1, hpet ? &hpet1 : NULL);
tsc_pit_khz = pit_calibrate_tsc();
tsc2 = tsc_read_refs(&pm2, hpet ? &hpet2 : NULL);
tsc1 = tsc_read_refs(&ref1, hpet);
tsc_pit_khz = pit_calibrate_tsc(latch, ms, loopmin);
tsc2 = tsc_read_refs(&ref2, hpet);
local_irq_restore(flags);
/* Pick the lowest PIT TSC calibration so far */
tsc_pit_min = min(tsc_pit_min, tsc_pit_khz);
/* hpet or pmtimer available ? */
if (!hpet && !pm1 && !pm2)
if (!hpet && !ref1 && !ref2)
continue;
/* Check, whether the sampling was disturbed by an SMI */
@ -243,23 +418,41 @@ unsigned long native_calibrate_tsc(void)
continue;
tsc2 = (tsc2 - tsc1) * 1000000LL;
if (hpet)
tsc2 = calc_hpet_ref(tsc2, ref1, ref2);
else
tsc2 = calc_pmtimer_ref(tsc2, ref1, ref2);
if (hpet) {
if (hpet2 < hpet1)
hpet2 += 0x100000000ULL;
hpet2 -= hpet1;
tsc1 = ((u64)hpet2 * hpet_readl(HPET_PERIOD));
do_div(tsc1, 1000000);
} else {
if (pm2 < pm1)
pm2 += (u64)ACPI_PM_OVRRUN;
pm2 -= pm1;
tsc1 = pm2 * 1000000000LL;
do_div(tsc1, PMTMR_TICKS_PER_SEC);
tsc_ref_min = min(tsc_ref_min, (unsigned long) tsc2);
/* Check the reference deviation */
delta = ((u64) tsc_pit_min) * 100;
do_div(delta, tsc_ref_min);
/*
* If both calibration results are inside a 10% window
* then we can be sure, that the calibration
* succeeded. We break out of the loop right away. We
* use the reference value, as it is more precise.
*/
if (delta >= 90 && delta <= 110) {
printk(KERN_INFO
"TSC: PIT calibration matches %s. %d loops\n",
hpet ? "HPET" : "PMTIMER", i + 1);
return tsc_ref_min;
}
do_div(tsc2, tsc1);
tsc_ref_min = min(tsc_ref_min, (unsigned long) tsc2);
/*
* Check whether PIT failed more than once. This
* happens in virtualized environments. We need to
* give the virtual PC a slightly longer timeframe for
* the HPET/PMTIMER to make the result precise.
*/
if (i == 1 && tsc_pit_min == ULONG_MAX) {
latch = CAL2_LATCH;
ms = CAL2_MS;
loopmin = CAL2_PIT_LOOPS;
}
}
/*
@ -270,7 +463,7 @@ unsigned long native_calibrate_tsc(void)
printk(KERN_WARNING "TSC: Unable to calibrate against PIT\n");
/* We don't have an alternative source, disable TSC */
if (!hpet && !pm1 && !pm2) {
if (!hpet && !ref1 && !ref2) {
printk("TSC: No reference (HPET/PMTIMER) available\n");
return 0;
}
@ -278,7 +471,7 @@ unsigned long native_calibrate_tsc(void)
/* The alternative source failed as well, disable TSC */
if (tsc_ref_min == ULONG_MAX) {
printk(KERN_WARNING "TSC: HPET/PMTIMER calibration "
"failed due to SMI disturbance.\n");
"failed.\n");
return 0;
}
@ -290,44 +483,25 @@ unsigned long native_calibrate_tsc(void)
}
/* We don't have an alternative source, use the PIT calibration value */
if (!hpet && !pm1 && !pm2) {
if (!hpet && !ref1 && !ref2) {
printk(KERN_INFO "TSC: Using PIT calibration value\n");
return tsc_pit_min;
}
/* The alternative source failed, use the PIT calibration value */
if (tsc_ref_min == ULONG_MAX) {
printk(KERN_WARNING "TSC: HPET/PMTIMER calibration failed due "
"to SMI disturbance. Using PIT calibration\n");
printk(KERN_WARNING "TSC: HPET/PMTIMER calibration failed. "
"Using PIT calibration\n");
return tsc_pit_min;
}
/* Check the reference deviation */
delta = ((u64) tsc_pit_min) * 100;
do_div(delta, tsc_ref_min);
/*
* If both calibration results are inside a 5% window, the we
* use the lower frequency of those as it is probably the
* closest estimate.
*/
if (delta >= 95 && delta <= 105) {
printk(KERN_INFO "TSC: PIT calibration confirmed by %s.\n",
hpet ? "HPET" : "PMTIMER");
printk(KERN_INFO "TSC: using %s calibration value\n",
tsc_pit_min <= tsc_ref_min ? "PIT" :
hpet ? "HPET" : "PMTIMER");
return tsc_pit_min <= tsc_ref_min ? tsc_pit_min : tsc_ref_min;
}
printk(KERN_WARNING "TSC: PIT calibration deviates from %s: %lu %lu.\n",
hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
/*
* The calibration values differ too much. In doubt, we use
* the PIT value as we know that there are PMTIMERs around
* running at double speed.
* running at double speed. At least we let the user know:
*/
printk(KERN_WARNING "TSC: PIT calibration deviates from %s: %lu %lu.\n",
hpet ? "HPET" : "PMTIMER", tsc_pit_min, tsc_ref_min);
printk(KERN_INFO "TSC: Using PIT calibration value\n");
return tsc_pit_min;
}

16
arch/x86/kernel/visws_quirks.c
View File

@ -25,45 +25,31 @@
#include <asm/visws/cobalt.h>
#include <asm/visws/piix4.h>
#include <asm/arch_hooks.h>
#include <asm/io_apic.h>
#include <asm/fixmap.h>
#include <asm/reboot.h>
#include <asm/setup.h>
#include <asm/e820.h>
#include <asm/smp.h>
#include <asm/io.h>
#include <mach_ipi.h>
#include "mach_apic.h"
#include <linux/init.h>
#include <linux/smp.h>
#include <linux/kernel_stat.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/apic.h>
#include <asm/i8259.h>
#include <asm/irq_vectors.h>
#include <asm/visws/cobalt.h>
#include <asm/visws/lithium.h>
#include <asm/visws/piix4.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
extern int no_broadcast;
#include <asm/io.h>
#include <asm/apic.h>
#include <asm/arch_hooks.h>
#include <asm/visws/cobalt.h>
#include <asm/visws/lithium.h>
char visws_board_type = -1;
char visws_board_rev = -1;

10
arch/x86/kernel/vmi_32.c
View File

@ -393,13 +393,13 @@ static void *vmi_kmap_atomic_pte(struct page *page, enum km_type type)
}
#endif
static void vmi_allocate_pte(struct mm_struct *mm, u32 pfn)
static void vmi_allocate_pte(struct mm_struct *mm, unsigned long pfn)
{
vmi_set_page_type(pfn, VMI_PAGE_L1);
vmi_ops.allocate_page(pfn, VMI_PAGE_L1, 0, 0, 0);
}
static void vmi_allocate_pmd(struct mm_struct *mm, u32 pfn)
static void vmi_allocate_pmd(struct mm_struct *mm, unsigned long pfn)
{
/*
* This call comes in very early, before mem_map is setup.
@ -410,20 +410,20 @@ static void vmi_allocate_pmd(struct mm_struct *mm, u32 pfn)
vmi_ops.allocate_page(pfn, VMI_PAGE_L2, 0, 0, 0);
}
static void vmi_allocate_pmd_clone(u32 pfn, u32 clonepfn, u32 start, u32 count)
static void vmi_allocate_pmd_clone(unsigned long pfn, unsigned long clonepfn, unsigned long start, unsigned long count)
{
vmi_set_page_type(pfn, VMI_PAGE_L2 | VMI_PAGE_CLONE);
vmi_check_page_type(clonepfn, VMI_PAGE_L2);
vmi_ops.allocate_page(pfn, VMI_PAGE_L2 | VMI_PAGE_CLONE, clonepfn, start, count);
}
static void vmi_release_pte(u32 pfn)
static void vmi_release_pte(unsigned long pfn)
{
vmi_ops.release_page(pfn, VMI_PAGE_L1);
vmi_set_page_type(pfn, VMI_PAGE_NORMAL);
}
static void vmi_release_pmd(u32 pfn)
static void vmi_release_pmd(unsigned long pfn)
{
vmi_ops.release_page(pfn, VMI_PAGE_L2);
vmi_set_page_type(pfn, VMI_PAGE_NORMAL);

82
arch/x86/lib/msr-on-cpu.c
View File

@ -16,37 +16,46 @@ static void __rdmsr_on_cpu(void *info)
rdmsr(rv->msr_no, rv->l, rv->h);
}
static void __rdmsr_safe_on_cpu(void *info)
static void __wrmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = rdmsr_safe(rv->msr_no, &rv->l, &rv->h);
wrmsr(rv->msr_no, rv->l, rv->h);
}
static int _rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h, int safe)
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err = 0;
int err;
struct msr_info rv;
rv.msr_no = msr_no;
if (safe) {
err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu,
&rv, 1);
err = err ? err : rv.err;
} else {
err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
}
*l = rv.l;
*h = rv.h;
return err;
}
static void __wrmsr_on_cpu(void *info)
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
rv.msr_no = msr_no;
rv.l = l;
rv.h = h;
err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
return err;
}
/* These "safe" variants are slower and should be used when the target MSR
may not actually exist. */
static void __rdmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
wrmsr(rv->msr_no, rv->l, rv->h);
rv->err = rdmsr_safe(rv->msr_no, &rv->l, &rv->h);
}
static void __wrmsr_safe_on_cpu(void *info)
@ -56,45 +65,30 @@ static void __wrmsr_safe_on_cpu(void *info)
rv->err = wrmsr_safe(rv->msr_no, rv->l, rv->h);
}
static int _wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h, int safe)
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err = 0;
int err;
struct msr_info rv;
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
*l = rv.l;
*h = rv.h;
return err ? err : rv.err;
}
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
rv.msr_no = msr_no;
rv.l = l;
rv.h = h;
if (safe) {
err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu,
&rv, 1);
err = err ? err : rv.err;
} else {
err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
}
err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
return err;
}
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
return _wrmsr_on_cpu(cpu, msr_no, l, h, 0);
}
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
return _rdmsr_on_cpu(cpu, msr_no, l, h, 0);
}
/* These "safe" variants are slower and should be used when the target MSR
may not actually exist. */
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
return _wrmsr_on_cpu(cpu, msr_no, l, h, 1);
}
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
return _rdmsr_on_cpu(cpu, msr_no, l, h, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_on_cpu);

42
arch/x86/lib/string_32.c
View File

@ -22,7 +22,7 @@ char *strcpy(char *dest, const char *src)
"testb %%al,%%al\n\t"
"jne 1b"
: "=&S" (d0), "=&D" (d1), "=&a" (d2)
:"0" (src), "1" (dest) : "memory");
: "0" (src), "1" (dest) : "memory");
return dest;
}
EXPORT_SYMBOL(strcpy);
@ -42,7 +42,7 @@ char *strncpy(char *dest, const char *src, size_t count)
"stosb\n"
"2:"
: "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
:"0" (src), "1" (dest), "2" (count) : "memory");
: "0" (src), "1" (dest), "2" (count) : "memory");
return dest;
}
EXPORT_SYMBOL(strncpy);
@ -60,7 +60,7 @@ char *strcat(char *dest, const char *src)
"testb %%al,%%al\n\t"
"jne 1b"
: "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
: "0" (src), "1" (dest), "2" (0), "3" (0xffffffffu): "memory");
: "0" (src), "1" (dest), "2" (0), "3" (0xffffffffu) : "memory");
return dest;
}
EXPORT_SYMBOL(strcat);
@ -105,9 +105,9 @@ int strcmp(const char *cs, const char *ct)
"2:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"3:"
:"=a" (res), "=&S" (d0), "=&D" (d1)
:"1" (cs), "2" (ct)
:"memory");
: "=a" (res), "=&S" (d0), "=&D" (d1)
: "1" (cs), "2" (ct)
: "memory");
return res;
}
EXPORT_SYMBOL(strcmp);
@ -130,9 +130,9 @@ int strncmp(const char *cs, const char *ct, size_t count)
"3:\tsbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
:"=a" (res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
:"1" (cs), "2" (ct), "3" (count)
:"memory");
: "=a" (res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
: "1" (cs), "2" (ct), "3" (count)
: "memory");
return res;
}
EXPORT_SYMBOL(strncmp);
@ -152,9 +152,9 @@ char *strchr(const char *s, int c)
"movl $1,%1\n"
"2:\tmovl %1,%0\n\t"
"decl %0"
:"=a" (res), "=&S" (d0)
:"1" (s), "0" (c)
:"memory");
: "=a" (res), "=&S" (d0)
: "1" (s), "0" (c)
: "memory");
return res;
}
EXPORT_SYMBOL(strchr);
@ -169,9 +169,9 @@ size_t strlen(const char *s)
"scasb\n\t"
"notl %0\n\t"
"decl %0"
:"=c" (res), "=&D" (d0)
:"1" (s), "a" (0), "0" (0xffffffffu)
:"memory");
: "=c" (res), "=&D" (d0)
: "1" (s), "a" (0), "0" (0xffffffffu)
: "memory");
return res;
}
EXPORT_SYMBOL(strlen);
@ -189,9 +189,9 @@ void *memchr(const void *cs, int c, size_t count)
"je 1f\n\t"
"movl $1,%0\n"
"1:\tdecl %0"
:"=D" (res), "=&c" (d0)
:"a" (c), "0" (cs), "1" (count)
:"memory");
: "=D" (res), "=&c" (d0)
: "a" (c), "0" (cs), "1" (count)
: "memory");
return res;
}
EXPORT_SYMBOL(memchr);
@ -228,9 +228,9 @@ size_t strnlen(const char *s, size_t count)
"cmpl $-1,%1\n\t"
"jne 1b\n"
"3:\tsubl %2,%0"
:"=a" (res), "=&d" (d0)
:"c" (s), "1" (count)
:"memory");
: "=a" (res), "=&d" (d0)
: "c" (s), "1" (count)
: "memory");
return res;
}
EXPORT_SYMBOL(strnlen);

6
arch/x86/lib/strstr_32.c
View File

@ -23,9 +23,9 @@ __asm__ __volatile__(
"jne 1b\n\t"
"xorl %%eax,%%eax\n\t"
"2:"
:"=a" (__res), "=&c" (d0), "=&S" (d1)
:"0" (0), "1" (0xffffffff), "2" (cs), "g" (ct)
:"dx", "di");
: "=a" (__res), "=&c" (d0), "=&S" (d1)
: "0" (0), "1" (0xffffffff), "2" (cs), "g" (ct)
: "dx", "di");
return __res;
}

2
arch/x86/mm/discontig_32.c
View File

@ -328,7 +328,7 @@ void __init initmem_init(unsigned long start_pfn,
get_memcfg_numa();
kva_pages = round_up(calculate_numa_remap_pages(), PTRS_PER_PTE);
kva_pages = roundup(calculate_numa_remap_pages(), PTRS_PER_PTE);
kva_target_pfn = round_down(max_low_pfn - kva_pages, PTRS_PER_PTE);
do {

4
arch/x86/mm/dump_pagetables.c
View File

@ -148,8 +148,8 @@ static void note_page(struct seq_file *m, struct pg_state *st,
* we have now. "break" is either changing perms, levels or
* address space marker.
*/
prot = pgprot_val(new_prot) & ~(PTE_PFN_MASK);
cur = pgprot_val(st->current_prot) & ~(PTE_PFN_MASK);
prot = pgprot_val(new_prot) & PTE_FLAGS_MASK;
cur = pgprot_val(st->current_prot) & PTE_FLAGS_MASK;
if (!st->level) {
/* First entry */

8
arch/x86/mm/init_64.c
View File

@ -225,7 +225,7 @@ void __init init_extra_mapping_uc(unsigned long phys, unsigned long size)
void __init cleanup_highmap(void)
{
unsigned long vaddr = __START_KERNEL_map;
unsigned long end = round_up((unsigned long)_end, PMD_SIZE) - 1;
unsigned long end = roundup((unsigned long)_end, PMD_SIZE) - 1;
pmd_t *pmd = level2_kernel_pgt;
pmd_t *last_pmd = pmd + PTRS_PER_PMD;
@ -451,14 +451,14 @@ static void __init find_early_table_space(unsigned long end)
unsigned long puds, pmds, ptes, tables, start;
puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
tables = round_up(puds * sizeof(pud_t), PAGE_SIZE);
tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
if (direct_gbpages) {
unsigned long extra;
extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT);
pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT;
} else
pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
tables += round_up(pmds * sizeof(pmd_t), PAGE_SIZE);
tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
if (cpu_has_pse) {
unsigned long extra;
@ -466,7 +466,7 @@ static void __init find_early_table_space(unsigned long end)
ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
} else
ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
tables += round_up(ptes * sizeof(pte_t), PAGE_SIZE);
tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE);
/*
* RED-PEN putting page tables only on node 0 could

10
arch/x86/mm/numa_64.c
View File

@ -79,7 +79,7 @@ static int __init allocate_cachealigned_memnodemap(void)
return 0;
addr = 0x8000;
nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
nodemap_size = roundup(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
nodemap_addr = find_e820_area(addr, max_pfn<<PAGE_SHIFT,
nodemap_size, L1_CACHE_BYTES);
if (nodemap_addr == -1UL) {
@ -176,10 +176,10 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
unsigned long start_pfn, last_pfn, bootmap_pages, bootmap_size;
unsigned long bootmap_start, nodedata_phys;
void *bootmap;
const int pgdat_size = round_up(sizeof(pg_data_t), PAGE_SIZE);
const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
int nid;
start = round_up(start, ZONE_ALIGN);
start = roundup(start, ZONE_ALIGN);
printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,
start, end);
@ -210,9 +210,9 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
bootmap_pages = bootmem_bootmap_pages(last_pfn - start_pfn);
nid = phys_to_nid(nodedata_phys);
if (nid == nodeid)
bootmap_start = round_up(nodedata_phys + pgdat_size, PAGE_SIZE);
bootmap_start = roundup(nodedata_phys + pgdat_size, PAGE_SIZE);
else
bootmap_start = round_up(start, PAGE_SIZE);
bootmap_start = roundup(start, PAGE_SIZE);
/*
* SMP_CACHE_BYTES could be enough, but init_bootmem_node like
* to use that to align to PAGE_SIZE

4
arch/x86/mm/pageattr.c
View File

@ -84,7 +84,7 @@ static inline unsigned long highmap_start_pfn(void)
static inline unsigned long highmap_end_pfn(void)
{
return __pa(round_up((unsigned long)_end, PMD_SIZE)) >> PAGE_SHIFT;
return __pa(roundup((unsigned long)_end, PMD_SIZE)) >> PAGE_SHIFT;
}
#endif
@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages)
{
return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
}
EXPORT_SYMBOL_GPL(set_memory_ro);
int set_memory_rw(unsigned long addr, int numpages)
{
return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
}
EXPORT_SYMBOL_GPL(set_memory_rw);
int set_memory_np(unsigned long addr, int numpages)
{

6
arch/x86/mm/pgtable.c
View File

@ -63,10 +63,8 @@ static inline void pgd_list_del(pgd_t *pgd)
#define UNSHARED_PTRS_PER_PGD \
(SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD)
static void pgd_ctor(void *p)
static void pgd_ctor(pgd_t *pgd)
{
pgd_t *pgd = p;
/* If the pgd points to a shared pagetable level (either the
ptes in non-PAE, or shared PMD in PAE), then just copy the
references from swapper_pg_dir. */
@ -87,7 +85,7 @@ static void pgd_ctor(void *p)
pgd_list_add(pgd);
}
static void pgd_dtor(void *pgd)
static void pgd_dtor(pgd_t *pgd)
{
unsigned long flags; /* can be called from interrupt context */

3
arch/x86/mm/pgtable_32.c
View File

@ -123,7 +123,8 @@ static int __init parse_vmalloc(char *arg)
if (!arg)
return -EINVAL;
__VMALLOC_RESERVE = memparse(arg, &arg);
/* Add VMALLOC_OFFSET to the parsed value due to vm area guard hole*/
__VMALLOC_RESERVE = memparse(arg, &arg) + VMALLOC_OFFSET;
return 0;
}
early_param("vmalloc", parse_vmalloc);

55
arch/x86/oprofile/op_model_p4.c
View File

@ -10,11 +10,12 @@
#include <linux/oprofile.h>
#include <linux/smp.h>
#include <linux/ptrace.h>
#include <linux/nmi.h>
#include <asm/msr.h>
#include <asm/ptrace.h>
#include <asm/fixmap.h>
#include <asm/apic.h>
#include <asm/nmi.h>
#include "op_x86_model.h"
#include "op_counter.h"
@ -40,7 +41,7 @@ static unsigned int num_controls = NUM_CONTROLS_NON_HT;
static inline void setup_num_counters(void)
{
#ifdef CONFIG_SMP
if (smp_num_siblings == 2){
if (smp_num_siblings == 2) {
num_counters = NUM_COUNTERS_HT2;
num_controls = NUM_CONTROLS_HT2;
}
@ -86,7 +87,7 @@ struct p4_event_binding {
#define CTR_FLAME_2 (1 << 6)
#define CTR_IQ_5 (1 << 7)
static struct p4_counter_binding p4_counters [NUM_COUNTERS_NON_HT] = {
static struct p4_counter_binding p4_counters[NUM_COUNTERS_NON_HT] = {
{ CTR_BPU_0, MSR_P4_BPU_PERFCTR0, MSR_P4_BPU_CCCR0 },
{ CTR_MS_0, MSR_P4_MS_PERFCTR0, MSR_P4_MS_CCCR0 },
{ CTR_FLAME_0, MSR_P4_FLAME_PERFCTR0, MSR_P4_FLAME_CCCR0 },
@ -97,7 +98,7 @@ static struct p4_counter_binding p4_counters [NUM_COUNTERS_NON_HT] = {
{ CTR_IQ_5, MSR_P4_IQ_PERFCTR5, MSR_P4_IQ_CCCR5 }
};
#define NUM_UNUSED_CCCRS NUM_CCCRS_NON_HT - NUM_COUNTERS_NON_HT
#define NUM_UNUSED_CCCRS (NUM_CCCRS_NON_HT - NUM_COUNTERS_NON_HT)
/* p4 event codes in libop/op_event.h are indices into this table. */
@ -349,8 +350,8 @@ static struct p4_event_binding p4_events[NUM_EVENTS] = {
#define ESCR_SET_OS_1(escr, os) ((escr) |= (((os) & 1) << 1))
#define ESCR_SET_EVENT_SELECT(escr, sel) ((escr) |= (((sel) & 0x3f) << 25))
#define ESCR_SET_EVENT_MASK(escr, mask) ((escr) |= (((mask) & 0xffff) << 9))
#define ESCR_READ(escr,high,ev,i) do {rdmsr(ev->bindings[(i)].escr_address, (escr), (high));} while (0)
#define ESCR_WRITE(escr,high,ev,i) do {wrmsr(ev->bindings[(i)].escr_address, (escr), (high));} while (0)
#define ESCR_READ(escr, high, ev, i) do {rdmsr(ev->bindings[(i)].escr_address, (escr), (high)); } while (0)
#define ESCR_WRITE(escr, high, ev, i) do {wrmsr(ev->bindings[(i)].escr_address, (escr), (high)); } while (0)
#define CCCR_RESERVED_BITS 0x38030FFF
#define CCCR_CLEAR(cccr) ((cccr) &= CCCR_RESERVED_BITS)
@ -360,15 +361,15 @@ static struct p4_event_binding p4_events[NUM_EVENTS] = {
#define CCCR_SET_PMI_OVF_1(cccr) ((cccr) |= (1<<27))
#define CCCR_SET_ENABLE(cccr) ((cccr) |= (1<<12))
#define CCCR_SET_DISABLE(cccr) ((cccr) &= ~(1<<12))
#define CCCR_READ(low, high, i) do {rdmsr(p4_counters[(i)].cccr_address, (low), (high));} while (0)
#define CCCR_WRITE(low, high, i) do {wrmsr(p4_counters[(i)].cccr_address, (low), (high));} while (0)
#define CCCR_READ(low, high, i) do {rdmsr(p4_counters[(i)].cccr_address, (low), (high)); } while (0)
#define CCCR_WRITE(low, high, i) do {wrmsr(p4_counters[(i)].cccr_address, (low), (high)); } while (0)
#define CCCR_OVF_P(cccr) ((cccr) & (1U<<31))
#define CCCR_CLEAR_OVF(cccr) ((cccr) &= (~(1U<<31)))
#define CTRL_IS_RESERVED(msrs,c) (msrs->controls[(c)].addr ? 1 : 0)
#define CTR_IS_RESERVED(msrs,c) (msrs->counters[(c)].addr ? 1 : 0)
#define CTR_READ(l,h,i) do {rdmsr(p4_counters[(i)].counter_address, (l), (h));} while (0)
#define CTR_WRITE(l,i) do {wrmsr(p4_counters[(i)].counter_address, -(u32)(l), -1);} while (0)
#define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0)
#define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0)
#define CTR_READ(l, h, i) do {rdmsr(p4_counters[(i)].counter_address, (l), (h)); } while (0)
#define CTR_WRITE(l, i) do {wrmsr(p4_counters[(i)].counter_address, -(u32)(l), -1); } while (0)
#define CTR_OVERFLOW_P(ctr) (!((ctr) & 0x80000000))
@ -402,18 +403,16 @@ static void p4_fill_in_addresses(struct op_msrs * const msrs)
stag = get_stagger();
/* initialize some registers */
for (i = 0; i < num_counters; ++i) {
for (i = 0; i < num_counters; ++i)
msrs->counters[i].addr = 0;
}
for (i = 0; i < num_controls; ++i) {
for (i = 0; i < num_controls; ++i)
msrs->controls[i].addr = 0;
}
/* the counter & cccr registers we pay attention to */
for (i = 0; i < num_counters; ++i) {
addr = p4_counters[VIRT_CTR(stag, i)].counter_address;
cccraddr = p4_counters[VIRT_CTR(stag, i)].cccr_address;
if (reserve_perfctr_nmi(addr)){
if (reserve_perfctr_nmi(addr)) {
msrs->counters[i].addr = addr;
msrs->controls[i].addr = cccraddr;
}
@ -534,11 +533,10 @@ static void pmc_setup_one_p4_counter(unsigned int ctr)
CCCR_CLEAR(cccr);
CCCR_SET_REQUIRED_BITS(cccr);
CCCR_SET_ESCR_SELECT(cccr, ev->escr_select);
if (stag == 0) {
if (stag == 0)
CCCR_SET_PMI_OVF_0(cccr);
} else {
else
CCCR_SET_PMI_OVF_1(cccr);
}
CCCR_WRITE(cccr, high, VIRT_CTR(stag, ctr));
return;
}
@ -559,14 +557,14 @@ static void p4_setup_ctrs(struct op_msrs const * const msrs)
stag = get_stagger();
rdmsr(MSR_IA32_MISC_ENABLE, low, high);
if (! MISC_PMC_ENABLED_P(low)) {
if (!MISC_PMC_ENABLED_P(low)) {
printk(KERN_ERR "oprofile: P4 PMC not available\n");
return;
}
/* clear the cccrs we will use */
for (i = 0 ; i < num_counters ; i++) {
if (unlikely(!CTRL_IS_RESERVED(msrs,i)))
if (unlikely(!CTRL_IS_RESERVED(msrs, i)))
continue;
rdmsr(p4_counters[VIRT_CTR(stag, i)].cccr_address, low, high);
CCCR_CLEAR(low);
@ -576,14 +574,14 @@ static void p4_setup_ctrs(struct op_msrs const * const msrs)
/* clear all escrs (including those outside our concern) */
for (i = num_counters; i < num_controls; i++) {
if (unlikely(!CTRL_IS_RESERVED(msrs,i)))
if (unlikely(!CTRL_IS_RESERVED(msrs, i)))
continue;
wrmsr(msrs->controls[i].addr, 0, 0);
}
/* setup all counters */
for (i = 0 ; i < num_counters ; ++i) {
if ((counter_config[i].enabled) && (CTRL_IS_RESERVED(msrs,i))) {
if ((counter_config[i].enabled) && (CTRL_IS_RESERVED(msrs, i))) {
reset_value[i] = counter_config[i].count;
pmc_setup_one_p4_counter(i);
CTR_WRITE(counter_config[i].count, VIRT_CTR(stag, i));
@ -683,15 +681,16 @@ static void p4_shutdown(struct op_msrs const * const msrs)
int i;
for (i = 0 ; i < num_counters ; ++i) {
if (CTR_IS_RESERVED(msrs,i))
if (CTR_IS_RESERVED(msrs, i))
release_perfctr_nmi(msrs->counters[i].addr);
}
/* some of the control registers are specially reserved in
/*
* some of the control registers are specially reserved in
* conjunction with the counter registers (hence the starting offset).
* This saves a few bits.
*/
for (i = num_counters ; i < num_controls ; ++i) {
if (CTRL_IS_RESERVED(msrs,i))
if (CTRL_IS_RESERVED(msrs, i))
release_evntsel_nmi(msrs->controls[i].addr);
}
}

2
arch/x86/pci/amd_bus.c
View File

@ -580,7 +580,7 @@ static int __cpuinit amd_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
int cpu = (long)hcpu;
switch(action) {
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
smp_call_function_single(cpu, enable_pci_io_ecs, NULL, 0);

33
arch/x86/pci/irq.c
View File

@ -1043,37 +1043,46 @@ static void __init pcibios_fixup_irqs(void)
if (io_apic_assign_pci_irqs) {
int irq;
if (pin) {
if (!pin)
continue;
/*
* interrupt pins are numbered starting
* from 1
* interrupt pins are numbered starting from 1
*/
pin--;
irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
PCI_SLOT(dev->devfn), pin);
/*
* Busses behind bridges are typically not listed in the MP-table.
* In this case we have to look up the IRQ based on the parent bus,
* parent slot, and pin number. The SMP code detects such bridged
* busses itself so we should get into this branch reliably.
* Busses behind bridges are typically not listed in the
* MP-table. In this case we have to look up the IRQ
* based on the parent bus, parent slot, and pin number.
* The SMP code detects such bridged busses itself so we
* should get into this branch reliably.
*/
if (irq < 0 && dev->bus->parent) { /* go back to the bridge */
if (irq < 0 && dev->bus->parent) {
/* go back to the bridge */
struct pci_dev *bridge = dev->bus->self;
int bus;
pin = (pin + PCI_SLOT(dev->devfn)) % 4;
irq = IO_APIC_get_PCI_irq_vector(bridge->bus->number,
bus = bridge->bus->number;
irq = IO_APIC_get_PCI_irq_vector(bus,
PCI_SLOT(bridge->devfn), pin);
if (irq >= 0)
dev_warn(&dev->dev, "using bridge %s INT %c to get IRQ %d\n",
dev_warn(&dev->dev,
"using bridge %s INT %c to "
"get IRQ %d\n",
pci_name(bridge),
'A' + pin, irq);
}
if (irq >= 0) {
dev_info(&dev->dev, "PCI->APIC IRQ transform: INT %c -> IRQ %d\n", 'A' + pin, irq);
dev_info(&dev->dev,
"PCI->APIC IRQ transform: INT %c "
"-> IRQ %d\n",
'A' + pin, irq);
dev->irq = irq;
}
}
}
#endif
/*
* Still no IRQ? Try to lookup one...

14
arch/x86/power/hibernate_asm_32.S
View File

@ -1,5 +1,3 @@
.text
/*
* This may not use any stack, nor any variable that is not "NoSave":
*
@ -12,17 +10,18 @@
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/asm-offsets.h>
#include <asm/processor-flags.h>
.text
.text
ENTRY(swsusp_arch_suspend)
movl %esp, saved_context_esp
movl %ebx, saved_context_ebx
movl %ebp, saved_context_ebp
movl %esi, saved_context_esi
movl %edi, saved_context_edi
pushfl ; popl saved_context_eflags
pushfl
popl saved_context_eflags
call swsusp_save
ret
@ -59,7 +58,7 @@ done:
movl mmu_cr4_features, %ecx
jecxz 1f # cr4 Pentium and higher, skip if zero
movl %ecx, %edx
andl $~(1<<7), %edx; # PGE
andl $~(X86_CR4_PGE), %edx
movl %edx, %cr4; # turn off PGE
1:
movl %cr3, %eax; # flush TLB
@ -74,7 +73,8 @@ done:
movl saved_context_esi, %esi
movl saved_context_edi, %edi
pushl saved_context_eflags ; popfl
pushl saved_context_eflags
popfl
xorl %eax, %eax

20
arch/x86/xen/enlighten.c
View File

@ -812,7 +812,7 @@ static int xen_write_msr_safe(unsigned int msr, unsigned low, unsigned high)
/* Early in boot, while setting up the initial pagetable, assume
everything is pinned. */
static __init void xen_alloc_pte_init(struct mm_struct *mm, u32 pfn)
static __init void xen_alloc_pte_init(struct mm_struct *mm, unsigned long pfn)
{
#ifdef CONFIG_FLATMEM
BUG_ON(mem_map); /* should only be used early */
@ -822,7 +822,7 @@ static __init void xen_alloc_pte_init(struct mm_struct *mm, u32 pfn)
/* Early release_pte assumes that all pts are pinned, since there's
only init_mm and anything attached to that is pinned. */
static void xen_release_pte_init(u32 pfn)
static void xen_release_pte_init(unsigned long pfn)
{
make_lowmem_page_readwrite(__va(PFN_PHYS(pfn)));
}
@ -838,7 +838,7 @@ static void pin_pagetable_pfn(unsigned cmd, unsigned long pfn)
/* This needs to make sure the new pte page is pinned iff its being
attached to a pinned pagetable. */
static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level)
static void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn, unsigned level)
{
struct page *page = pfn_to_page(pfn);
@ -856,12 +856,12 @@ static void xen_alloc_ptpage(struct mm_struct *mm, u32 pfn, unsigned level)
}
}
static void xen_alloc_pte(struct mm_struct *mm, u32 pfn)
static void xen_alloc_pte(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PTE);
}
static void xen_alloc_pmd(struct mm_struct *mm, u32 pfn)
static void xen_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PMD);
}
@ -909,7 +909,7 @@ static void xen_pgd_free(struct mm_struct *mm, pgd_t *pgd)
}
/* This should never happen until we're OK to use struct page */
static void xen_release_ptpage(u32 pfn, unsigned level)
static void xen_release_ptpage(unsigned long pfn, unsigned level)
{
struct page *page = pfn_to_page(pfn);
@ -923,23 +923,23 @@ static void xen_release_ptpage(u32 pfn, unsigned level)
}
}
static void xen_release_pte(u32 pfn)
static void xen_release_pte(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PTE);
}
static void xen_release_pmd(u32 pfn)
static void xen_release_pmd(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PMD);
}
#if PAGETABLE_LEVELS == 4
static void xen_alloc_pud(struct mm_struct *mm, u32 pfn)
static void xen_alloc_pud(struct mm_struct *mm, unsigned long pfn)
{
xen_alloc_ptpage(mm, pfn, PT_PUD);
}
static void xen_release_pud(u32 pfn)
static void xen_release_pud(unsigned long pfn)
{
xen_release_ptpage(pfn, PT_PUD);
}

4
include/asm-x86/apic.h
View File

@ -81,9 +81,7 @@ extern int get_physical_broadcast(void);
static inline void ack_APIC_irq(void)
{
/*
* ack_APIC_irq() actually gets compiled as a single instruction:
* - a single rmw on Pentium/82489DX
* - a single write on P6+ cores (CONFIG_X86_GOOD_APIC)
* ack_APIC_irq() actually gets compiled as a single instruction
* ... yummie.
*/

7
include/asm-x86/asm.h
View File

@ -20,17 +20,22 @@
#define _ASM_PTR __ASM_SEL(.long, .quad)
#define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
#define _ASM_MOV_UL __ASM_SIZE(mov)
#define _ASM_MOV __ASM_SIZE(mov)
#define _ASM_INC __ASM_SIZE(inc)
#define _ASM_DEC __ASM_SIZE(dec)
#define _ASM_ADD __ASM_SIZE(add)
#define _ASM_SUB __ASM_SIZE(sub)
#define _ASM_XADD __ASM_SIZE(xadd)
#define _ASM_AX __ASM_REG(ax)
#define _ASM_BX __ASM_REG(bx)
#define _ASM_CX __ASM_REG(cx)
#define _ASM_DX __ASM_REG(dx)
#define _ASM_SP __ASM_REG(sp)
#define _ASM_BP __ASM_REG(bp)
#define _ASM_SI __ASM_REG(si)
#define _ASM_DI __ASM_REG(di)
/* Exception table entry */
# define _ASM_EXTABLE(from,to) \

5
include/asm-x86/elf.h
View File

@ -148,8 +148,9 @@ do { \
static inline void start_ia32_thread(struct pt_regs *regs, u32 ip, u32 sp)
{
asm volatile("movl %0,%%fs" :: "r" (0));
asm volatile("movl %0,%%es; movl %0,%%ds" : : "r" (__USER32_DS));
loadsegment(fs, 0);
loadsegment(ds, __USER32_DS);
loadsegment(es, __USER32_DS);
load_gs_index(0);
regs->ip = ip;
regs->sp = sp;

6
include/asm-x86/futex.h
View File

@ -25,7 +25,7 @@
asm volatile("1:\tmovl %2, %0\n" \
"\tmovl\t%0, %3\n" \
"\t" insn "\n" \
"2:\tlock; cmpxchgl %3, %2\n" \
"2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
"\tjnz\t1b\n" \
"3:\t.section .fixup,\"ax\"\n" \
"4:\tmov\t%5, %1\n" \
@ -64,7 +64,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr)
__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
break;
case FUTEX_OP_ADD:
__futex_atomic_op1("lock; xaddl %0, %2", ret, oldval,
__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
uaddr, oparg);
break;
case FUTEX_OP_OR:
@ -122,7 +122,7 @@ static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval,
if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
return -EFAULT;
asm volatile("1:\tlock; cmpxchgl %3, %1\n"
asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n"
"2:\t.section .fixup, \"ax\"\n"
"3:\tmov %2, %0\n"
"\tjmp 2b\n"

6
include/asm-x86/gart.h
View File

@ -52,15 +52,15 @@ static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size)
return 0;
if (aper_base + aper_size > 0x100000000ULL) {
printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n");
printk(KERN_INFO "Aperture beyond 4GB. Ignoring.\n");
return 0;
}
if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n");
printk(KERN_INFO "Aperture pointing to e820 RAM. Ignoring.\n");
return 0;
}
if (aper_size < min_size) {
printk(KERN_ERR "Aperture too small (%d MB) than (%d MB)\n",
printk(KERN_INFO "Aperture too small (%d MB) than (%d MB)\n",
aper_size>>20, min_size>>20);
return 0;
}

3
include/asm-x86/mach-rdc321x/gpio.h
View File

@ -1,6 +1,8 @@
#ifndef ASM_X86__MACH_RDC321X__GPIO_H
#define ASM_X86__MACH_RDC321X__GPIO_H
#include <linux/kernel.h>
extern int rdc_gpio_get_value(unsigned gpio);
extern void rdc_gpio_set_value(unsigned gpio, int value);
extern int rdc_gpio_direction_input(unsigned gpio);
@ -18,6 +20,7 @@ static inline int gpio_request(unsigned gpio, const char *label)
static inline void gpio_free(unsigned gpio)
{
might_sleep();
rdc_gpio_free(gpio);
}

5
include/asm-x86/mmu.h
View File

@ -7,14 +7,9 @@
/*
* The x86 doesn't have a mmu context, but
* we put the segment information here.
*
* cpu_vm_mask is used to optimize ldt flushing.
*/
typedef struct {
void *ldt;
#ifdef CONFIG_X86_64
rwlock_t ldtlock;
#endif
int size;
struct mutex lock;
void *vdso;

23
include/asm-x86/msr.h
View File

@ -63,6 +63,22 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr,
return EAX_EDX_VAL(val, low, high);
}
static inline unsigned long long native_read_msr_amd_safe(unsigned int msr,
int *err)
{
DECLARE_ARGS(val, low, high);
asm volatile("2: rdmsr ; xor %0,%0\n"
"1:\n\t"
".section .fixup,\"ax\"\n\t"
"3: mov %3,%0 ; jmp 1b\n\t"
".previous\n\t"
_ASM_EXTABLE(2b, 3b)
: "=r" (*err), EAX_EDX_RET(val, low, high)
: "c" (msr), "D" (0x9c5a203a), "i" (-EFAULT));
return EAX_EDX_VAL(val, low, high);
}
static inline void native_write_msr(unsigned int msr,
unsigned low, unsigned high)
{
@ -158,6 +174,13 @@ static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
*p = native_read_msr_safe(msr, &err);
return err;
}
static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
{
int err;
*p = native_read_msr_amd_safe(msr, &err);
return err;
}
#define rdtscl(low) \
((low) = (u32)native_read_tsc())

1
include/asm-x86/nmi.h
View File

@ -34,6 +34,7 @@ extern void stop_apic_nmi_watchdog(void *);
extern void disable_timer_nmi_watchdog(void);
extern void enable_timer_nmi_watchdog(void);
extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason);
extern void cpu_nmi_set_wd_enabled(void);
extern atomic_t nmi_active;
extern unsigned int nmi_watchdog;

3
include/asm-x86/page_32.h
View File

@ -89,9 +89,6 @@ extern int nx_enabled;
extern unsigned int __VMALLOC_RESERVE;
extern int sysctl_legacy_va_layout;
#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)
#define MAXMEM (-__PAGE_OFFSET - __VMALLOC_RESERVE)
extern void find_low_pfn_range(void);
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);

42
include/asm-x86/paravirt.h
View File

@ -137,6 +137,7 @@ struct pv_cpu_ops {
/* MSR, PMC and TSR operations.
err = 0/-EFAULT. wrmsr returns 0/-EFAULT. */
u64 (*read_msr_amd)(unsigned int msr, int *err);
u64 (*read_msr)(unsigned int msr, int *err);
int (*write_msr)(unsigned int msr, unsigned low, unsigned high);
@ -257,13 +258,13 @@ struct pv_mmu_ops {
* Hooks for allocating/releasing pagetable pages when they're
* attached to a pagetable
*/
void (*alloc_pte)(struct mm_struct *mm, u32 pfn);
void (*alloc_pmd)(struct mm_struct *mm, u32 pfn);
void (*alloc_pmd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count);
void (*alloc_pud)(struct mm_struct *mm, u32 pfn);
void (*release_pte)(u32 pfn);
void (*release_pmd)(u32 pfn);
void (*release_pud)(u32 pfn);
void (*alloc_pte)(struct mm_struct *mm, unsigned long pfn);
void (*alloc_pmd)(struct mm_struct *mm, unsigned long pfn);
void (*alloc_pmd_clone)(unsigned long pfn, unsigned long clonepfn, unsigned long start, unsigned long count);
void (*alloc_pud)(struct mm_struct *mm, unsigned long pfn);
void (*release_pte)(unsigned long pfn);
void (*release_pmd)(unsigned long pfn);
void (*release_pud)(unsigned long pfn);
/* Pagetable manipulation functions */
void (*set_pte)(pte_t *ptep, pte_t pteval);
@ -726,6 +727,10 @@ static inline u64 paravirt_read_msr(unsigned msr, int *err)
{
return PVOP_CALL2(u64, pv_cpu_ops.read_msr, msr, err);
}
static inline u64 paravirt_read_msr_amd(unsigned msr, int *err)
{
return PVOP_CALL2(u64, pv_cpu_ops.read_msr_amd, msr, err);
}
static inline int paravirt_write_msr(unsigned msr, unsigned low, unsigned high)
{
return PVOP_CALL3(int, pv_cpu_ops.write_msr, msr, low, high);
@ -771,6 +776,13 @@ static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
*p = paravirt_read_msr(msr, &err);
return err;
}
static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
{
int err;
*p = paravirt_read_msr_amd(msr, &err);
return err;
}
static inline u64 paravirt_read_tsc(void)
{
@ -993,35 +1005,35 @@ static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd)
PVOP_VCALL2(pv_mmu_ops.pgd_free, mm, pgd);
}
static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned pfn)
static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn)
{
PVOP_VCALL2(pv_mmu_ops.alloc_pte, mm, pfn);
}
static inline void paravirt_release_pte(unsigned pfn)
static inline void paravirt_release_pte(unsigned long pfn)
{
PVOP_VCALL1(pv_mmu_ops.release_pte, pfn);
}
static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned pfn)
static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
{
PVOP_VCALL2(pv_mmu_ops.alloc_pmd, mm, pfn);
}
static inline void paravirt_alloc_pmd_clone(unsigned pfn, unsigned clonepfn,
unsigned start, unsigned count)
static inline void paravirt_alloc_pmd_clone(unsigned long pfn, unsigned long clonepfn,
unsigned long start, unsigned long count)
{
PVOP_VCALL4(pv_mmu_ops.alloc_pmd_clone, pfn, clonepfn, start, count);
}
static inline void paravirt_release_pmd(unsigned pfn)
static inline void paravirt_release_pmd(unsigned long pfn)
{
PVOP_VCALL1(pv_mmu_ops.release_pmd, pfn);
}
static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned pfn)
static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn)
{
PVOP_VCALL2(pv_mmu_ops.alloc_pud, mm, pfn);
}
static inline void paravirt_release_pud(unsigned pfn)
static inline void paravirt_release_pud(unsigned long pfn)
{
PVOP_VCALL1(pv_mmu_ops.release_pud, pfn);
}

2
include/asm-x86/pgtable-2level.h
View File

@ -53,9 +53,7 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
#endif
#define pte_page(x) pfn_to_page(pte_pfn(x))
#define pte_none(x) (!(x).pte_low)
#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
/*
* Bits 0, 6 and 7 are taken, split up the 29 bits of offset

7
include/asm-x86/pgtable-3level.h
View File

@ -151,18 +151,11 @@ static inline int pte_same(pte_t a, pte_t b)
return a.pte_low == b.pte_low && a.pte_high == b.pte_high;
}
#define pte_page(x) pfn_to_page(pte_pfn(x))
static inline int pte_none(pte_t pte)
{
return !pte.pte_low && !pte.pte_high;
}
static inline unsigned long pte_pfn(pte_t pte)
{
return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
}
/*
* Bits 0, 6 and 7 are taken in the low part of the pte,
* put the 32 bits of offset into the high part.

7
include/asm-x86/pgtable.h
View File

@ -186,6 +186,13 @@ static inline int pte_special(pte_t pte)
return pte_val(pte) & _PAGE_SPECIAL;
}
static inline unsigned long pte_pfn(pte_t pte)
{
return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
}
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
static inline int pmd_large(pmd_t pte)
{
return (pmd_val(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==

5
include/asm-x86/pgtable_32.h
View File

@ -57,8 +57,7 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
* area for the same reason. ;)
*/
#define VMALLOC_OFFSET (8 * 1024 * 1024)
#define VMALLOC_START (((unsigned long)high_memory + 2 * VMALLOC_OFFSET - 1) \
& ~(VMALLOC_OFFSET - 1))
#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
#ifdef CONFIG_X86_PAE
#define LAST_PKMAP 512
#else
@ -74,6 +73,8 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
#endif
#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
/*
* Define this if things work differently on an i386 and an i486:
* it will (on an i486) warn about kernel memory accesses that are

2
include/asm-x86/pgtable_64.h
View File

@ -175,8 +175,6 @@ static inline int pmd_bad(pmd_t pmd)
#define pte_present(x) (pte_val((x)) & (_PAGE_PRESENT | _PAGE_PROTNONE))
#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT)) /* FIXME: is this right? */
#define pte_page(x) pfn_to_page(pte_pfn((x)))
#define pte_pfn(x) ((pte_val((x)) & __PHYSICAL_MASK) >> PAGE_SHIFT)
/*
* Macro to mark a page protection value as "uncacheable".

2
include/asm-x86/resume-trace.h
View File

@ -7,7 +7,7 @@
do { \
if (pm_trace_enabled) { \
const void *tracedata; \
asm volatile(_ASM_MOV_UL " $1f,%0\n" \
asm volatile(_ASM_MOV " $1f,%0\n" \
".section .tracedata,\"a\"\n" \
"1:\t.word %c1\n\t" \
_ASM_PTR " %c2\n" \

6
include/asm-x86/spinlock.h
View File

@ -97,7 +97,7 @@ static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock)
"jne 1f\n\t"
"movw %w0,%w1\n\t"
"incb %h1\n\t"
"lock ; cmpxchgw %w1,%2\n\t"
LOCK_PREFIX "cmpxchgw %w1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"
@ -135,7 +135,7 @@ static __always_inline void __ticket_spin_lock(raw_spinlock_t *lock)
int inc = 0x00010000;
int tmp;
asm volatile("lock ; xaddl %0, %1\n"
asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
"movzwl %w0, %2\n\t"
"shrl $16, %0\n\t"
"1:\t"
@ -162,7 +162,7 @@ static __always_inline int __ticket_spin_trylock(raw_spinlock_t *lock)
"cmpl %0,%1\n\t"
"jne 1f\n\t"
"addl $0x00010000, %1\n\t"
"lock ; cmpxchgl %1,%2\n\t"
LOCK_PREFIX "cmpxchgl %1,%2\n\t"
"1:"
"sete %b1\n\t"
"movzbl %b1,%0\n\t"