AcoSail/kernel_optimize_test
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Merge branches 'x86/asm', 'x86/debug', 'x86/mm', 'x86/setup', 'x86/urgent' and 'linus' into x86/core

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This commit is contained in:
Ingo Molnar 2009-03-12 11:50:15 +01:00
commit a98fe7f342
35 changed files with 1204 additions and 268 deletions
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2
arch/powerpc/configs/40x/virtex_defconfig
View File

@ -686,7 +686,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_OF_PLATFORM is not set
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set

2
arch/powerpc/configs/44x/virtex5_defconfig
View File

@ -691,7 +691,7 @@ CONFIG_SERIAL_UARTLITE_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_OF_PLATFORM is not set
CONFIG_SERIAL_OF_PLATFORM=y
# CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set

36
arch/powerpc/configs/linkstation_defconfig
View File

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc2
# Mon Jan 26 15:35:29 2009
# Linux kernel version: 2.6.29-rc6
# Fri Mar 6 00:07:38 2009
#
# CONFIG_PPC64 is not set
@ -71,6 +71,15 @@ CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
@ -88,6 +97,7 @@ CONFIG_NAMESPACES=y
# CONFIG_IPC_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
@ -153,11 +163,6 @@ CONFIG_DEFAULT_AS=y
# CONFIG_DEFAULT_CFQ is not set
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="anticipatory"
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_FREEZER is not set
#
@ -294,7 +299,6 @@ CONFIG_NET=y
#
# Networking options
#
# CONFIG_NET_NS is not set
CONFIG_COMPAT_NET_DEV_OPS=y
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
@ -508,8 +512,8 @@ CONFIG_MTD_CONCAT=y
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_TESTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_OF_PARTS is not set
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_OF_PARTS=y
# CONFIG_MTD_AR7_PARTS is not set
#
@ -587,7 +591,6 @@ CONFIG_MTD_PHYSMAP=y
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
# CONFIG_MTD_QINFO_PROBE is not set
#
# UBI - Unsorted block images
@ -617,13 +620,19 @@ CONFIG_BLK_DEV_RAM_SIZE=8192
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_LEGACY=m
# CONFIG_EEPROM_93CX6 is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
@ -839,6 +848,7 @@ CONFIG_R8169=y
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
CONFIG_NETDEV_10000=y
# CONFIG_CHELSIO_T1 is not set
@ -1037,8 +1047,6 @@ CONFIG_I2C_MPC=y
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_EEPROM_AT24 is not set
CONFIG_EEPROM_LEGACY=m
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set

35
arch/powerpc/configs/storcenter_defconfig
View File

@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.29-rc2
# Mon Jan 26 15:35:46 2009
# Linux kernel version: 2.6.29-rc6
# Fri Mar 6 00:09:08 2009
#
# CONFIG_PPC64 is not set
@ -71,6 +71,15 @@ CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_AUDIT is not set
#
# RCU Subsystem
#
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_GROUP_SCHED=y
@ -144,11 +153,6 @@ CONFIG_IOSCHED_CFQ=y
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
CONFIG_CLASSIC_RCU=y
# CONFIG_TREE_RCU is not set
# CONFIG_PREEMPT_RCU is not set
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_PREEMPT_RCU_TRACE is not set
# CONFIG_FREEZER is not set
#
@ -377,8 +381,8 @@ CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_TESTS is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_OF_PARTS is not set
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_OF_PARTS=y
# CONFIG_MTD_AR7_PARTS is not set
#
@ -452,7 +456,6 @@ CONFIG_MTD_PHYSMAP=y
# LPDDR flash memory drivers
#
# CONFIG_MTD_LPDDR is not set
# CONFIG_MTD_QINFO_PROBE is not set
#
# UBI - Unsorted block images
@ -478,13 +481,19 @@ CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_HD is not set
CONFIG_MISC_DEVICES=y
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_93CX6 is not set
CONFIG_HAVE_IDE=y
CONFIG_IDE=y
@ -677,6 +686,7 @@ CONFIG_R8169=y
# CONFIG_QLA3XXX is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_JME is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_TR is not set
@ -818,8 +828,6 @@ CONFIG_I2C_MPC=y
# Miscellaneous I2C Chip support
#
# CONFIG_DS1682 is not set
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set
@ -1159,6 +1167,7 @@ CONFIG_JFFS2_RTIME=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_EXPORTFS=m
#
# Partition Types

38
arch/powerpc/platforms/embedded6xx/linkstation.c
View File

@ -12,7 +12,6 @@
#include <linux/kernel.h>
#include <linux/initrd.h>
#include <linux/mtd/physmap.h>
#include <linux/of_platform.h>
#include <asm/time.h>
@ -22,39 +21,6 @@
#include "mpc10x.h"
static struct mtd_partition linkstation_physmap_partitions[] = {
{
.name = "mtd_firmimg",
.offset = 0x000000,
.size = 0x300000,
},
{
.name = "mtd_bootcode",
.offset = 0x300000,
.size = 0x070000,
},
{
.name = "mtd_status",
.offset = 0x370000,
.size = 0x010000,
},
{
.name = "mtd_conf",
.offset = 0x380000,
.size = 0x080000,
},
{
.name = "mtd_allflash",
.offset = 0x000000,
.size = 0x400000,
},
{
.name = "mtd_data",
.offset = 0x310000,
.size = 0x0f0000,
},
};
static __initdata struct of_device_id of_bus_ids[] = {
{ .type = "soc", },
{ .compatible = "simple-bus", },
@ -99,10 +65,6 @@ static int __init linkstation_add_bridge(struct device_node *dev)
static void __init linkstation_setup_arch(void)
{
struct device_node *np;
#ifdef CONFIG_MTD_PHYSMAP
physmap_set_partitions(linkstation_physmap_partitions,
ARRAY_SIZE(linkstation_physmap_partitions));
#endif
/* Lookup PCI host bridges */
for_each_compatible_node(np, "pci", "mpc10x-pci")

32
arch/powerpc/platforms/embedded6xx/storcenter.c
View File

@ -14,7 +14,6 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/initrd.h>
#include <linux/mtd/physmap.h>
#include <linux/of_platform.h>
#include <asm/system.h>
@ -26,32 +25,6 @@
#include "mpc10x.h"
#ifdef CONFIG_MTD_PHYSMAP
static struct mtd_partition storcenter_physmap_partitions[] = {
{
.name = "kernel",
.offset = 0x000000,
.size = 0x170000,
},
{
.name = "rootfs",
.offset = 0x170000,
.size = 0x590000,
},
{
.name = "uboot",
.offset = 0x700000,
.size = 0x040000,
},
{
.name = "config",
.offset = 0x740000,
.size = 0x0c0000,
},
};
#endif
static __initdata struct of_device_id storcenter_of_bus[] = {
{ .name = "soc", },
{},
@ -96,11 +69,6 @@ static void __init storcenter_setup_arch(void)
{
struct device_node *np;
#ifdef CONFIG_MTD_PHYSMAP
physmap_set_partitions(storcenter_physmap_partitions,
ARRAY_SIZE(storcenter_physmap_partitions));
#endif
/* Lookup PCI host bridges */
for_each_compatible_node(np, "pci", "mpc10x-pci")
storcenter_add_bridge(np);

6
arch/x86/Kconfig
View File

@ -931,6 +931,12 @@ config X86_CPUID
with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
/dev/cpu/31/cpuid.
config X86_CPU_DEBUG
tristate "/sys/kernel/debug/x86/cpu/* - CPU Debug support"
---help---
If you select this option, this will provide various x86 CPUs
information through debugfs.
choice
prompt "High Memory Support"
default HIGHMEM4G if !X86_NUMAQ

23
arch/x86/boot/Makefile
View File

@ -6,26 +6,23 @@
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
# Changed by many, many contributors over the years.
#
# ROOT_DEV specifies the default root-device when making the image.
# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
# the default of FLOPPY is used by 'build'.
ROOT_DEV := CURRENT
ROOT_DEV := CURRENT
# If you want to preset the SVGA mode, uncomment the next line and
# set SVGA_MODE to whatever number you want.
# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
# The number is the same as you would ordinarily press at bootup.
SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
# If you want the RAM disk device, define this to be the size in blocks.
#RAMDISK := -DRAMDISK=512
targets := vmlinux.bin setup.bin setup.elf zImage bzImage
targets := vmlinux.bin setup.bin setup.elf bzImage
subdir- := compressed
setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o
@ -71,17 +68,13 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
KBUILD_CFLAGS += $(call cc-option,-m32)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
$(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
$(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
$(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
$(obj)/bzImage: BUILDFLAGS := -b
$(obj)/bzImage: asflags-y := $(SVGA_MODE)
quiet_cmd_image = BUILD $@
cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
$(obj)/vmlinux.bin $(ROOT_DEV) > $@
cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
$(ROOT_DEV) > $@
$(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
$(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'

29
arch/x86/boot/header.S
View File

@ -24,12 +24,8 @@
#include "boot.h"
#include "offsets.h"
SETUPSECTS = 4 /* default nr of setup-sectors */
BOOTSEG = 0x07C0 /* original address of boot-sector */
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" */
SYSSEG = 0x1000 /* historical load address >> 4 */
#ifndef SVGA_MODE
#define SVGA_MODE ASK_VGA
@ -97,12 +93,12 @@ bugger_off_msg:
.section ".header", "a"
.globl hdr
hdr:
setup_sects: .byte SETUPSECTS
setup_sects: .byte 0 /* Filled in by build.c */
root_flags: .word ROOT_RDONLY
syssize: .long SYSSIZE
ram_size: .word RAMDISK
syssize: .long 0 /* Filled in by build.c */
ram_size: .word 0 /* Obsolete */
vid_mode: .word SVGA_MODE
root_dev: .word ROOT_DEV
root_dev: .word 0 /* Filled in by build.c */
boot_flag: .word 0xAA55
# offset 512, entry point
@ -123,14 +119,15 @@ _start:
# or else old loadlin-1.5 will fail)
.globl realmode_swtch
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
start_sys_seg: .word SYSSEG
start_sys_seg: .word SYSSEG # obsolete and meaningless, but just
# in case something decided to "use" it
.word kernel_version-512 # pointing to kernel version string
# above section of header is compatible
# with loadlin-1.5 (header v1.5). Don't
# change it.
type_of_loader: .byte 0 # = 0, old one (LILO, Loadlin,
# Bootlin, SYSLX, bootsect...)
type_of_loader: .byte 0 # 0 means ancient bootloader, newer
# bootloaders know to change this.
# See Documentation/i386/boot.txt for
# assigned ids
@ -142,11 +139,7 @@ CAN_USE_HEAP = 0x80 # If set, the loader also has set
# space behind setup.S can be used for
# heap purposes.
# Only the loader knows what is free
#ifndef __BIG_KERNEL__
.byte 0
#else
.byte LOADED_HIGH
#endif
setup_move_size: .word 0x8000 # size to move, when setup is not
# loaded at 0x90000. We will move setup
@ -157,11 +150,7 @@ setup_move_size: .word 0x8000 # size to move, when setup is not
code32_start: # here loaders can put a different
# start address for 32-bit code.
#ifndef __BIG_KERNEL__
.long 0x1000 # 0x1000 = default for zImage
#else
.long 0x100000 # 0x100000 = default for big kernel
#endif
ramdisk_image: .long 0 # address of loaded ramdisk image
# Here the loader puts the 32-bit

44
arch/x86/boot/pm.c
View File

@ -32,47 +32,6 @@ static void realmode_switch_hook(void)
}
}
/*
* A zImage kernel is loaded at 0x10000 but wants to run at 0x1000.
* A bzImage kernel is loaded and runs at 0x100000.
*/
static void move_kernel_around(void)
{
/* Note: rely on the compile-time option here rather than
the LOADED_HIGH flag. The Qemu kernel loader unconditionally
sets the loadflags to zero. */
#ifndef __BIG_KERNEL__
u16 dst_seg, src_seg;
u32 syssize;
dst_seg = 0x1000 >> 4;
src_seg = 0x10000 >> 4;
syssize = boot_params.hdr.syssize; /* Size in 16-byte paragraphs */
while (syssize) {
int paras = (syssize >= 0x1000) ? 0x1000 : syssize;
int dwords = paras << 2;
asm volatile("pushw %%es ; "
"pushw %%ds ; "
"movw %1,%%es ; "
"movw %2,%%ds ; "
"xorw %%di,%%di ; "
"xorw %%si,%%si ; "
"rep;movsl ; "
"popw %%ds ; "
"popw %%es"
: "+c" (dwords)
: "r" (dst_seg), "r" (src_seg)
: "esi", "edi");
syssize -= paras;
dst_seg += paras;
src_seg += paras;
}
#endif
}
/*
* Disable all interrupts at the legacy PIC.
*/
@ -147,9 +106,6 @@ void go_to_protected_mode(void)
/* Hook before leaving real mode, also disables interrupts */
realmode_switch_hook();
/* Move the kernel/setup to their final resting places */
move_kernel_around();
/* Enable the A20 gate */
if (enable_a20()) {
puts("A20 gate not responding, unable to boot...\n");

9
arch/x86/boot/tools/build.c
View File

@ -130,7 +130,7 @@ static void die(const char * str, ...)
static void usage(void)
{
die("Usage: build [-b] setup system [rootdev] [> image]");
die("Usage: build setup system [rootdev] [> image]");
}
int main(int argc, char ** argv)
@ -145,11 +145,6 @@ int main(int argc, char ** argv)
void *kernel;
u32 crc = 0xffffffffUL;
if (argc > 2 && !strcmp(argv[1], "-b"))
{
is_big_kernel = 1;
argc--, argv++;
}
if ((argc < 3) || (argc > 4))
usage();
if (argc > 3) {
@ -216,8 +211,6 @@ int main(int argc, char ** argv)
die("Unable to mmap '%s': %m", argv[2]);
/* Number of 16-byte paragraphs, including space for a 4-byte CRC */
sys_size = (sz + 15 + 4) / 16;
if (!is_big_kernel && sys_size > DEF_SYSSIZE)
die("System is too big. Try using bzImage or modules.");
/* Patch the setup code with the appropriate size parameters */
buf[0x1f1] = setup_sectors-1;

4
arch/x86/include/asm/boot.h
View File

@ -1,10 +1,6 @@
#ifndef _ASM_X86_BOOT_H
#define _ASM_X86_BOOT_H
/* Don't touch these, unless you really know what you're doing. */
#define DEF_SYSSEG 0x1000
#define DEF_SYSSIZE 0x7F00
/* Internal svga startup constants */
#define NORMAL_VGA 0xffff /* 80x25 mode */
#define EXTENDED_VGA 0xfffe /* 80x50 mode */

193
arch/x86/include/asm/cpu_debug.h Executable file
View File

@ -0,0 +1,193 @@
#ifndef _ASM_X86_CPU_DEBUG_H
#define _ASM_X86_CPU_DEBUG_H
/*
* CPU x86 architecture debug
*
* Copyright(C) 2009 Jaswinder Singh Rajput
*/
/* Register flags */
enum cpu_debug_bit {
/* Model Specific Registers (MSRs) */
CPU_MC_BIT, /* Machine Check */
CPU_MONITOR_BIT, /* Monitor */
CPU_TIME_BIT, /* Time */
CPU_PMC_BIT, /* Performance Monitor */
CPU_PLATFORM_BIT, /* Platform */
CPU_APIC_BIT, /* APIC */
CPU_POWERON_BIT, /* Power-on */
CPU_CONTROL_BIT, /* Control */
CPU_FEATURES_BIT, /* Features control */
CPU_LBRANCH_BIT, /* Last Branch */
CPU_BIOS_BIT, /* BIOS */
CPU_FREQ_BIT, /* Frequency */
CPU_MTTR_BIT, /* MTRR */
CPU_PERF_BIT, /* Performance */
CPU_CACHE_BIT, /* Cache */
CPU_SYSENTER_BIT, /* Sysenter */
CPU_THERM_BIT, /* Thermal */
CPU_MISC_BIT, /* Miscellaneous */
CPU_DEBUG_BIT, /* Debug */
CPU_PAT_BIT, /* PAT */
CPU_VMX_BIT, /* VMX */
CPU_CALL_BIT, /* System Call */
CPU_BASE_BIT, /* BASE Address */
CPU_SMM_BIT, /* System mgmt mode */
CPU_SVM_BIT, /*Secure Virtual Machine*/
CPU_OSVM_BIT, /* OS-Visible Workaround*/
/* Standard Registers */
CPU_TSS_BIT, /* Task Stack Segment */
CPU_CR_BIT, /* Control Registers */
CPU_DT_BIT, /* Descriptor Table */
/* End of Registers flags */
CPU_REG_ALL_BIT, /* Select all Registers */
};
#define CPU_REG_ALL (~0) /* Select all Registers */
#define CPU_MC (1 << CPU_MC_BIT)
#define CPU_MONITOR (1 << CPU_MONITOR_BIT)
#define CPU_TIME (1 << CPU_TIME_BIT)
#define CPU_PMC (1 << CPU_PMC_BIT)
#define CPU_PLATFORM (1 << CPU_PLATFORM_BIT)
#define CPU_APIC (1 << CPU_APIC_BIT)
#define CPU_POWERON (1 << CPU_POWERON_BIT)
#define CPU_CONTROL (1 << CPU_CONTROL_BIT)
#define CPU_FEATURES (1 << CPU_FEATURES_BIT)
#define CPU_LBRANCH (1 << CPU_LBRANCH_BIT)
#define CPU_BIOS (1 << CPU_BIOS_BIT)
#define CPU_FREQ (1 << CPU_FREQ_BIT)
#define CPU_MTRR (1 << CPU_MTTR_BIT)
#define CPU_PERF (1 << CPU_PERF_BIT)
#define CPU_CACHE (1 << CPU_CACHE_BIT)
#define CPU_SYSENTER (1 << CPU_SYSENTER_BIT)
#define CPU_THERM (1 << CPU_THERM_BIT)
#define CPU_MISC (1 << CPU_MISC_BIT)
#define CPU_DEBUG (1 << CPU_DEBUG_BIT)
#define CPU_PAT (1 << CPU_PAT_BIT)
#define CPU_VMX (1 << CPU_VMX_BIT)
#define CPU_CALL (1 << CPU_CALL_BIT)
#define CPU_BASE (1 << CPU_BASE_BIT)
#define CPU_SMM (1 << CPU_SMM_BIT)
#define CPU_SVM (1 << CPU_SVM_BIT)
#define CPU_OSVM (1 << CPU_OSVM_BIT)
#define CPU_TSS (1 << CPU_TSS_BIT)
#define CPU_CR (1 << CPU_CR_BIT)
#define CPU_DT (1 << CPU_DT_BIT)
/* Register file flags */
enum cpu_file_bit {
CPU_INDEX_BIT, /* index */
CPU_VALUE_BIT, /* value */
};
#define CPU_FILE_VALUE (1 << CPU_VALUE_BIT)
/*
* DisplayFamily_DisplayModel Processor Families/Processor Number Series
* -------------------------- ------------------------------------------
* 05_01, 05_02, 05_04 Pentium, Pentium with MMX
*
* 06_01 Pentium Pro
* 06_03, 06_05 Pentium II Xeon, Pentium II
* 06_07, 06_08, 06_0A, 06_0B Pentium III Xeon, Pentum III
*
* 06_09, 060D Pentium M
*
* 06_0E Core Duo, Core Solo
*
* 06_0F Xeon 3000, 3200, 5100, 5300, 7300 series,
* Core 2 Quad, Core 2 Extreme, Core 2 Duo,
* Pentium dual-core
* 06_17 Xeon 5200, 5400 series, Core 2 Quad Q9650
*
* 06_1C Atom
*
* 0F_00, 0F_01, 0F_02 Xeon, Xeon MP, Pentium 4
* 0F_03, 0F_04 Xeon, Xeon MP, Pentium 4, Pentium D
*
* 0F_06 Xeon 7100, 5000 Series, Xeon MP,
* Pentium 4, Pentium D
*/
/* Register processors bits */
enum cpu_processor_bit {
CPU_NONE,
/* Intel */
CPU_INTEL_PENTIUM_BIT,
CPU_INTEL_P6_BIT,
CPU_INTEL_PENTIUM_M_BIT,
CPU_INTEL_CORE_BIT,
CPU_INTEL_CORE2_BIT,
CPU_INTEL_ATOM_BIT,
CPU_INTEL_XEON_P4_BIT,
CPU_INTEL_XEON_MP_BIT,
};
#define CPU_ALL (~0) /* Select all CPUs */
#define CPU_INTEL_PENTIUM (1 << CPU_INTEL_PENTIUM_BIT)
#define CPU_INTEL_P6 (1 << CPU_INTEL_P6_BIT)
#define CPU_INTEL_PENTIUM_M (1 << CPU_INTEL_PENTIUM_M_BIT)
#define CPU_INTEL_CORE (1 << CPU_INTEL_CORE_BIT)
#define CPU_INTEL_CORE2 (1 << CPU_INTEL_CORE2_BIT)
#define CPU_INTEL_ATOM (1 << CPU_INTEL_ATOM_BIT)
#define CPU_INTEL_XEON_P4 (1 << CPU_INTEL_XEON_P4_BIT)
#define CPU_INTEL_XEON_MP (1 << CPU_INTEL_XEON_MP_BIT)
#define CPU_INTEL_PX (CPU_INTEL_P6 | CPU_INTEL_PENTIUM_M)
#define CPU_INTEL_COREX (CPU_INTEL_CORE | CPU_INTEL_CORE2)
#define CPU_INTEL_XEON (CPU_INTEL_XEON_P4 | CPU_INTEL_XEON_MP)
#define CPU_CO_AT (CPU_INTEL_CORE | CPU_INTEL_ATOM)
#define CPU_C2_AT (CPU_INTEL_CORE2 | CPU_INTEL_ATOM)
#define CPU_CX_AT (CPU_INTEL_COREX | CPU_INTEL_ATOM)
#define CPU_CX_XE (CPU_INTEL_COREX | CPU_INTEL_XEON)
#define CPU_P6_XE (CPU_INTEL_P6 | CPU_INTEL_XEON)
#define CPU_PM_CO_AT (CPU_INTEL_PENTIUM_M | CPU_CO_AT)
#define CPU_C2_AT_XE (CPU_C2_AT | CPU_INTEL_XEON)
#define CPU_CX_AT_XE (CPU_CX_AT | CPU_INTEL_XEON)
#define CPU_P6_CX_AT (CPU_INTEL_P6 | CPU_CX_AT)
#define CPU_P6_CX_XE (CPU_P6_XE | CPU_INTEL_COREX)
#define CPU_P6_CX_AT_XE (CPU_INTEL_P6 | CPU_CX_AT_XE)
#define CPU_PM_CX_AT_XE (CPU_INTEL_PENTIUM_M | CPU_CX_AT_XE)
#define CPU_PM_CX_AT (CPU_INTEL_PENTIUM_M | CPU_CX_AT)
#define CPU_PM_CX_XE (CPU_INTEL_PENTIUM_M | CPU_CX_XE)
#define CPU_PX_CX_AT (CPU_INTEL_PX | CPU_CX_AT)
#define CPU_PX_CX_AT_XE (CPU_INTEL_PX | CPU_CX_AT_XE)
/* Select all Intel CPUs*/
#define CPU_INTEL_ALL (CPU_INTEL_PENTIUM | CPU_PX_CX_AT_XE)
#define MAX_CPU_FILES 512
struct cpu_private {
unsigned cpu;
unsigned type;
unsigned reg;
unsigned file;
};
struct cpu_debug_base {
char *name; /* Register name */
unsigned flag; /* Register flag */
};
struct cpu_cpuX_base {
struct dentry *dentry; /* Register dentry */
int init; /* Register index file */
};
struct cpu_file_base {
char *name; /* Register file name */
unsigned flag; /* Register file flag */
};
struct cpu_debug_range {
unsigned min; /* Register range min */
unsigned max; /* Register range max */
unsigned flag; /* Supported flags */
unsigned model; /* Supported models */
};
#endif /* _ASM_X86_CPU_DEBUG_H */

3
arch/x86/include/asm/desc.h
View File

@ -91,7 +91,6 @@ static inline int desc_empty(const void *ptr)
#define store_gdt(dtr) native_store_gdt(dtr)
#define store_idt(dtr) native_store_idt(dtr)
#define store_tr(tr) (tr = native_store_tr())
#define store_ldt(ldt) asm("sldt %0":"=m" (ldt))
#define load_TLS(t, cpu) native_load_tls(t, cpu)
#define set_ldt native_set_ldt
@ -112,6 +111,8 @@ static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
}
#endif /* CONFIG_PARAVIRT */
#define store_ldt(ldt) asm("sldt %0" : "=m"(ldt))
static inline void native_write_idt_entry(gate_desc *idt, int entry,
const gate_desc *gate)
{

1
arch/x86/include/asm/highmem.h
View File

@ -63,6 +63,7 @@ void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
void *kmap_atomic(struct page *page, enum km_type type);
void kunmap_atomic(void *kvaddr, enum km_type type);
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#ifndef CONFIG_PARAVIRT

2
arch/x86/kernel/cpu/Makefile
View File

@ -14,6 +14,8 @@ obj-y += vmware.o hypervisor.o
obj-$(CONFIG_X86_32) += bugs.o cmpxchg.o
obj-$(CONFIG_X86_64) += bugs_64.o
obj-$(CONFIG_X86_CPU_DEBUG) += cpu_debug.o
obj-$(CONFIG_CPU_SUP_INTEL) += intel.o
obj-$(CONFIG_CPU_SUP_AMD) += amd.o
obj-$(CONFIG_CPU_SUP_CYRIX_32) += cyrix.o

6
arch/x86/kernel/cpu/common.c
View File

@ -1078,8 +1078,7 @@ void __cpuinit cpu_init(void)
atomic_inc(&init_mm.mm_count);
me->active_mm = &init_mm;
if (me->mm)
BUG();
BUG_ON(me->mm);
enter_lazy_tlb(&init_mm, me);
load_sp0(t, &current->thread);
@ -1145,8 +1144,7 @@ void __cpuinit cpu_init(void)
*/
atomic_inc(&init_mm.mm_count);
curr->active_mm = &init_mm;
if (curr->mm)
BUG();
BUG_ON(curr->mm);
enter_lazy_tlb(&init_mm, curr);
load_sp0(t, thread);

785
arch/x86/kernel/cpu/cpu_debug.c Executable file
View File

@ -0,0 +1,785 @@
/*
* CPU x86 architecture debug code
*
* Copyright(C) 2009 Jaswinder Singh Rajput
*
* For licencing details see kernel-base/COPYING
*/
#include <linux/interrupt.h>
#include <linux/compiler.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/kprobes.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/percpu.h>
#include <linux/signal.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/smp.h>
#include <asm/cpu_debug.h>
#include <asm/paravirt.h>
#include <asm/system.h>
#include <asm/traps.h>
#include <asm/apic.h>
#include <asm/desc.h>
static DEFINE_PER_CPU(struct cpu_cpuX_base, cpu_arr[CPU_REG_ALL_BIT]);
static DEFINE_PER_CPU(struct cpu_private *, priv_arr[MAX_CPU_FILES]);
static DEFINE_PER_CPU(unsigned, cpu_modelflag);
static DEFINE_PER_CPU(int, cpu_priv_count);
static DEFINE_PER_CPU(unsigned, cpu_model);
static DEFINE_MUTEX(cpu_debug_lock);
static struct dentry *cpu_debugfs_dir;
static struct cpu_debug_base cpu_base[] = {
{ "mc", CPU_MC }, /* Machine Check */
{ "monitor", CPU_MONITOR }, /* Monitor */
{ "time", CPU_TIME }, /* Time */
{ "pmc", CPU_PMC }, /* Performance Monitor */
{ "platform", CPU_PLATFORM }, /* Platform */
{ "apic", CPU_APIC }, /* APIC */
{ "poweron", CPU_POWERON }, /* Power-on */
{ "control", CPU_CONTROL }, /* Control */
{ "features", CPU_FEATURES }, /* Features control */
{ "lastbranch", CPU_LBRANCH }, /* Last Branch */
{ "bios", CPU_BIOS }, /* BIOS */
{ "freq", CPU_FREQ }, /* Frequency */
{ "mtrr", CPU_MTRR }, /* MTRR */
{ "perf", CPU_PERF }, /* Performance */
{ "cache", CPU_CACHE }, /* Cache */
{ "sysenter", CPU_SYSENTER }, /* Sysenter */
{ "therm", CPU_THERM }, /* Thermal */
{ "misc", CPU_MISC }, /* Miscellaneous */
{ "debug", CPU_DEBUG }, /* Debug */
{ "pat", CPU_PAT }, /* PAT */
{ "vmx", CPU_VMX }, /* VMX */
{ "call", CPU_CALL }, /* System Call */
{ "base", CPU_BASE }, /* BASE Address */
{ "smm", CPU_SMM }, /* System mgmt mode */
{ "svm", CPU_SVM }, /*Secure Virtial Machine*/
{ "osvm", CPU_OSVM }, /* OS-Visible Workaround*/
{ "tss", CPU_TSS }, /* Task Stack Segment */
{ "cr", CPU_CR }, /* Control Registers */
{ "dt", CPU_DT }, /* Descriptor Table */
{ "registers", CPU_REG_ALL }, /* Select all Registers */
};
static struct cpu_file_base cpu_file[] = {
{ "index", CPU_REG_ALL }, /* index */
{ "value", CPU_REG_ALL }, /* value */
};
/* Intel Registers Range */
static struct cpu_debug_range cpu_intel_range[] = {
{ 0x00000000, 0x00000001, CPU_MC, CPU_INTEL_ALL },
{ 0x00000006, 0x00000007, CPU_MONITOR, CPU_CX_AT_XE },
{ 0x00000010, 0x00000010, CPU_TIME, CPU_INTEL_ALL },
{ 0x00000011, 0x00000013, CPU_PMC, CPU_INTEL_PENTIUM },
{ 0x00000017, 0x00000017, CPU_PLATFORM, CPU_PX_CX_AT_XE },
{ 0x0000001B, 0x0000001B, CPU_APIC, CPU_P6_CX_AT_XE },
{ 0x0000002A, 0x0000002A, CPU_POWERON, CPU_PX_CX_AT_XE },
{ 0x0000002B, 0x0000002B, CPU_POWERON, CPU_INTEL_XEON },
{ 0x0000002C, 0x0000002C, CPU_FREQ, CPU_INTEL_XEON },
{ 0x0000003A, 0x0000003A, CPU_CONTROL, CPU_CX_AT_XE },
{ 0x00000040, 0x00000043, CPU_LBRANCH, CPU_PM_CX_AT_XE },
{ 0x00000044, 0x00000047, CPU_LBRANCH, CPU_PM_CO_AT },
{ 0x00000060, 0x00000063, CPU_LBRANCH, CPU_C2_AT },
{ 0x00000064, 0x00000067, CPU_LBRANCH, CPU_INTEL_ATOM },
{ 0x00000079, 0x00000079, CPU_BIOS, CPU_P6_CX_AT_XE },
{ 0x00000088, 0x0000008A, CPU_CACHE, CPU_INTEL_P6 },
{ 0x0000008B, 0x0000008B, CPU_BIOS, CPU_P6_CX_AT_XE },
{ 0x0000009B, 0x0000009B, CPU_MONITOR, CPU_INTEL_XEON },
{ 0x000000C1, 0x000000C2, CPU_PMC, CPU_P6_CX_AT },
{ 0x000000CD, 0x000000CD, CPU_FREQ, CPU_CX_AT },
{ 0x000000E7, 0x000000E8, CPU_PERF, CPU_CX_AT },
{ 0x000000FE, 0x000000FE, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000116, 0x00000116, CPU_CACHE, CPU_INTEL_P6 },
{ 0x00000118, 0x00000118, CPU_CACHE, CPU_INTEL_P6 },
{ 0x00000119, 0x00000119, CPU_CACHE, CPU_INTEL_PX },
{ 0x0000011A, 0x0000011B, CPU_CACHE, CPU_INTEL_P6 },
{ 0x0000011E, 0x0000011E, CPU_CACHE, CPU_PX_CX_AT },
{ 0x00000174, 0x00000176, CPU_SYSENTER, CPU_P6_CX_AT_XE },
{ 0x00000179, 0x0000017A, CPU_MC, CPU_PX_CX_AT_XE },
{ 0x0000017B, 0x0000017B, CPU_MC, CPU_P6_XE },
{ 0x00000186, 0x00000187, CPU_PMC, CPU_P6_CX_AT },
{ 0x00000198, 0x00000199, CPU_PERF, CPU_PM_CX_AT_XE },
{ 0x0000019A, 0x0000019A, CPU_TIME, CPU_PM_CX_AT_XE },
{ 0x0000019B, 0x0000019D, CPU_THERM, CPU_PM_CX_AT_XE },
{ 0x000001A0, 0x000001A0, CPU_MISC, CPU_PM_CX_AT_XE },
{ 0x000001C9, 0x000001C9, CPU_LBRANCH, CPU_PM_CX_AT },
{ 0x000001D7, 0x000001D8, CPU_LBRANCH, CPU_INTEL_XEON },
{ 0x000001D9, 0x000001D9, CPU_DEBUG, CPU_CX_AT_XE },
{ 0x000001DA, 0x000001DA, CPU_LBRANCH, CPU_INTEL_XEON },
{ 0x000001DB, 0x000001DB, CPU_LBRANCH, CPU_P6_XE },
{ 0x000001DC, 0x000001DC, CPU_LBRANCH, CPU_INTEL_P6 },
{ 0x000001DD, 0x000001DE, CPU_LBRANCH, CPU_PX_CX_AT_XE },
{ 0x000001E0, 0x000001E0, CPU_LBRANCH, CPU_INTEL_P6 },
{ 0x00000200, 0x0000020F, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000250, 0x00000250, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000258, 0x00000259, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000268, 0x0000026F, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000277, 0x00000277, CPU_PAT, CPU_C2_AT_XE },
{ 0x000002FF, 0x000002FF, CPU_MTRR, CPU_P6_CX_XE },
{ 0x00000300, 0x00000308, CPU_PMC, CPU_INTEL_XEON },
{ 0x00000309, 0x0000030B, CPU_PMC, CPU_C2_AT_XE },
{ 0x0000030C, 0x00000311, CPU_PMC, CPU_INTEL_XEON },
{ 0x00000345, 0x00000345, CPU_PMC, CPU_C2_AT },
{ 0x00000360, 0x00000371, CPU_PMC, CPU_INTEL_XEON },
{ 0x0000038D, 0x00000390, CPU_PMC, CPU_C2_AT },
{ 0x000003A0, 0x000003BE, CPU_PMC, CPU_INTEL_XEON },
{ 0x000003C0, 0x000003CD, CPU_PMC, CPU_INTEL_XEON },
{ 0x000003E0, 0x000003E1, CPU_PMC, CPU_INTEL_XEON },
{ 0x000003F0, 0x000003F0, CPU_PMC, CPU_INTEL_XEON },
{ 0x000003F1, 0x000003F1, CPU_PMC, CPU_C2_AT_XE },
{ 0x000003F2, 0x000003F2, CPU_PMC, CPU_INTEL_XEON },
{ 0x00000400, 0x00000402, CPU_MC, CPU_PM_CX_AT_XE },
{ 0x00000403, 0x00000403, CPU_MC, CPU_INTEL_XEON },
{ 0x00000404, 0x00000406, CPU_MC, CPU_PM_CX_AT_XE },
{ 0x00000407, 0x00000407, CPU_MC, CPU_INTEL_XEON },
{ 0x00000408, 0x0000040A, CPU_MC, CPU_PM_CX_AT_XE },
{ 0x0000040B, 0x0000040B, CPU_MC, CPU_INTEL_XEON },
{ 0x0000040C, 0x0000040E, CPU_MC, CPU_PM_CX_XE },
{ 0x0000040F, 0x0000040F, CPU_MC, CPU_INTEL_XEON },
{ 0x00000410, 0x00000412, CPU_MC, CPU_PM_CX_AT_XE },
{ 0x00000413, 0x00000417, CPU_MC, CPU_CX_AT_XE },
{ 0x00000480, 0x0000048B, CPU_VMX, CPU_CX_AT_XE },
{ 0x00000600, 0x00000600, CPU_DEBUG, CPU_PM_CX_AT_XE },
{ 0x00000680, 0x0000068F, CPU_LBRANCH, CPU_INTEL_XEON },
{ 0x000006C0, 0x000006CF, CPU_LBRANCH, CPU_INTEL_XEON },
{ 0x000107CC, 0x000107D3, CPU_PMC, CPU_INTEL_XEON_MP },
{ 0xC0000080, 0xC0000080, CPU_FEATURES, CPU_INTEL_XEON },
{ 0xC0000081, 0xC0000082, CPU_CALL, CPU_INTEL_XEON },
{ 0xC0000084, 0xC0000084, CPU_CALL, CPU_INTEL_XEON },
{ 0xC0000100, 0xC0000102, CPU_BASE, CPU_INTEL_XEON },
};
/* AMD Registers Range */
static struct cpu_debug_range cpu_amd_range[] = {
{ 0x00000010, 0x00000010, CPU_TIME, CPU_ALL, },
{ 0x0000001B, 0x0000001B, CPU_APIC, CPU_ALL, },
{ 0x000000FE, 0x000000FE, CPU_MTRR, CPU_ALL, },
{ 0x00000174, 0x00000176, CPU_SYSENTER, CPU_ALL, },
{ 0x00000179, 0x0000017A, CPU_MC, CPU_ALL, },
{ 0x0000017B, 0x0000017B, CPU_MC, CPU_ALL, },
{ 0x000001D9, 0x000001D9, CPU_DEBUG, CPU_ALL, },
{ 0x000001DB, 0x000001DE, CPU_LBRANCH, CPU_ALL, },
{ 0x00000200, 0x0000020F, CPU_MTRR, CPU_ALL, },
{ 0x00000250, 0x00000250, CPU_MTRR, CPU_ALL, },
{ 0x00000258, 0x00000259, CPU_MTRR, CPU_ALL, },
{ 0x00000268, 0x0000026F, CPU_MTRR, CPU_ALL, },
{ 0x00000277, 0x00000277, CPU_PAT, CPU_ALL, },
{ 0x000002FF, 0x000002FF, CPU_MTRR, CPU_ALL, },
{ 0x00000400, 0x00000417, CPU_MC, CPU_ALL, },
{ 0xC0000080, 0xC0000080, CPU_FEATURES, CPU_ALL, },
{ 0xC0000081, 0xC0000084, CPU_CALL, CPU_ALL, },
{ 0xC0000100, 0xC0000102, CPU_BASE, CPU_ALL, },
{ 0xC0000103, 0xC0000103, CPU_TIME, CPU_ALL, },
{ 0xC0000408, 0xC000040A, CPU_MC, CPU_ALL, },
{ 0xc0010000, 0xc0010007, CPU_PMC, CPU_ALL, },
{ 0xc0010010, 0xc0010010, CPU_MTRR, CPU_ALL, },
{ 0xc0010016, 0xc001001A, CPU_MTRR, CPU_ALL, },
{ 0xc001001D, 0xc001001D, CPU_MTRR, CPU_ALL, },
{ 0xc0010030, 0xc0010035, CPU_BIOS, CPU_ALL, },
{ 0xc0010056, 0xc0010056, CPU_SMM, CPU_ALL, },
{ 0xc0010061, 0xc0010063, CPU_SMM, CPU_ALL, },
{ 0xc0010074, 0xc0010074, CPU_MC, CPU_ALL, },
{ 0xc0010111, 0xc0010113, CPU_SMM, CPU_ALL, },
{ 0xc0010114, 0xc0010118, CPU_SVM, CPU_ALL, },
{ 0xc0010119, 0xc001011A, CPU_SMM, CPU_ALL, },
{ 0xc0010140, 0xc0010141, CPU_OSVM, CPU_ALL, },
{ 0xc0010156, 0xc0010156, CPU_SMM, CPU_ALL, },
};
static int get_cpu_modelflag(unsigned cpu)
{
int flag;
switch (per_cpu(cpu_model, cpu)) {
/* Intel */
case 0x0501:
case 0x0502:
case 0x0504:
flag = CPU_INTEL_PENTIUM;
break;
case 0x0601:
case 0x0603:
case 0x0605:
case 0x0607:
case 0x0608:
case 0x060A:
case 0x060B:
flag = CPU_INTEL_P6;
break;
case 0x0609:
case 0x060D:
flag = CPU_INTEL_PENTIUM_M;
break;
case 0x060E:
flag = CPU_INTEL_CORE;
break;
case 0x060F:
case 0x0617:
flag = CPU_INTEL_CORE2;
break;
case 0x061C:
flag = CPU_INTEL_ATOM;
break;
case 0x0F00:
case 0x0F01:
case 0x0F02:
case 0x0F03:
case 0x0F04:
flag = CPU_INTEL_XEON_P4;
break;
case 0x0F06:
flag = CPU_INTEL_XEON_MP;
break;
default:
flag = CPU_NONE;
break;
}
return flag;
}
static int get_cpu_range_count(unsigned cpu)
{
int index;
switch (per_cpu(cpu_model, cpu) >> 16) {
case X86_VENDOR_INTEL:
index = ARRAY_SIZE(cpu_intel_range);
break;
case X86_VENDOR_AMD:
index = ARRAY_SIZE(cpu_amd_range);
break;
default:
index = 0;
break;
}
return index;
}
static int is_typeflag_valid(unsigned cpu, unsigned flag)
{
unsigned vendor, modelflag;
int i, index;
/* Standard Registers should be always valid */
if (flag >= CPU_TSS)
return 1;
modelflag = per_cpu(cpu_modelflag, cpu);
vendor = per_cpu(cpu_model, cpu) >> 16;
index = get_cpu_range_count(cpu);
for (i = 0; i < index; i++) {
switch (vendor) {
case X86_VENDOR_INTEL:
if ((cpu_intel_range[i].model & modelflag) &&
(cpu_intel_range[i].flag & flag))
return 1;
break;
case X86_VENDOR_AMD:
if (cpu_amd_range[i].flag & flag)
return 1;
break;
}
}
/* Invalid */
return 0;
}
static unsigned get_cpu_range(unsigned cpu, unsigned *min, unsigned *max,
int index, unsigned flag)
{
unsigned modelflag;
modelflag = per_cpu(cpu_modelflag, cpu);
*max = 0;
switch (per_cpu(cpu_model, cpu) >> 16) {
case X86_VENDOR_INTEL:
if ((cpu_intel_range[index].model & modelflag) &&
(cpu_intel_range[index].flag & flag)) {
*min = cpu_intel_range[index].min;
*max = cpu_intel_range[index].max;
}
break;
case X86_VENDOR_AMD:
if (cpu_amd_range[index].flag & flag) {
*min = cpu_amd_range[index].min;
*max = cpu_amd_range[index].max;
}
break;
}
return *max;
}
/* This function can also be called with seq = NULL for printk */
static void print_cpu_data(struct seq_file *seq, unsigned type,
u32 low, u32 high)
{
struct cpu_private *priv;
u64 val = high;
if (seq) {
priv = seq->private;
if (priv->file) {
val = (val << 32) | low;
seq_printf(seq, "0x%llx\n", val);
} else
seq_printf(seq, " %08x: %08x_%08x\n",
type, high, low);
} else
printk(KERN_INFO " %08x: %08x_%08x\n", type, high, low);
}
/* This function can also be called with seq = NULL for printk */
static void print_msr(struct seq_file *seq, unsigned cpu, unsigned flag)
{
unsigned msr, msr_min, msr_max;
struct cpu_private *priv;
u32 low, high;
int i, range;
if (seq) {
priv = seq->private;
if (priv->file) {
if (!rdmsr_safe_on_cpu(priv->cpu, priv->reg,
&low, &high))
print_cpu_data(seq, priv->reg, low, high);
return;
}
}
range = get_cpu_range_count(cpu);
for (i = 0; i < range; i++) {
if (!get_cpu_range(cpu, &msr_min, &msr_max, i, flag))
continue;
for (msr = msr_min; msr <= msr_max; msr++) {
if (rdmsr_safe_on_cpu(cpu, msr, &low, &high))
continue;
print_cpu_data(seq, msr, low, high);
}
}
}
static void print_tss(void *arg)
{
struct pt_regs *regs = task_pt_regs(current);
struct seq_file *seq = arg;
unsigned int seg;
seq_printf(seq, " RAX\t: %016lx\n", regs->ax);
seq_printf(seq, " RBX\t: %016lx\n", regs->bx);
seq_printf(seq, " RCX\t: %016lx\n", regs->cx);
seq_printf(seq, " RDX\t: %016lx\n", regs->dx);
seq_printf(seq, " RSI\t: %016lx\n", regs->si);
seq_printf(seq, " RDI\t: %016lx\n", regs->di);
seq_printf(seq, " RBP\t: %016lx\n", regs->bp);
seq_printf(seq, " ESP\t: %016lx\n", regs->sp);
#ifdef CONFIG_X86_64
seq_printf(seq, " R08\t: %016lx\n", regs->r8);
seq_printf(seq, " R09\t: %016lx\n", regs->r9);
seq_printf(seq, " R10\t: %016lx\n", regs->r10);
seq_printf(seq, " R11\t: %016lx\n", regs->r11);
seq_printf(seq, " R12\t: %016lx\n", regs->r12);
seq_printf(seq, " R13\t: %016lx\n", regs->r13);
seq_printf(seq, " R14\t: %016lx\n", regs->r14);
seq_printf(seq, " R15\t: %016lx\n", regs->r15);
#endif
asm("movl %%cs,%0" : "=r" (seg));
seq_printf(seq, " CS\t: %04x\n", seg);
asm("movl %%ds,%0" : "=r" (seg));
seq_printf(seq, " DS\t: %04x\n", seg);
seq_printf(seq, " SS\t: %04lx\n", regs->ss & 0xffff);
asm("movl %%es,%0" : "=r" (seg));
seq_printf(seq, " ES\t: %04x\n", seg);
asm("movl %%fs,%0" : "=r" (seg));
seq_printf(seq, " FS\t: %04x\n", seg);
asm("movl %%gs,%0" : "=r" (seg));
seq_printf(seq, " GS\t: %04x\n", seg);
seq_printf(seq, " EFLAGS\t: %016lx\n", regs->flags);
seq_printf(seq, " EIP\t: %016lx\n", regs->ip);
}
static void print_cr(void *arg)
{
struct seq_file *seq = arg;
seq_printf(seq, " cr0\t: %016lx\n", read_cr0());
seq_printf(seq, " cr2\t: %016lx\n", read_cr2());
seq_printf(seq, " cr3\t: %016lx\n", read_cr3());
seq_printf(seq, " cr4\t: %016lx\n", read_cr4_safe());
#ifdef CONFIG_X86_64
seq_printf(seq, " cr8\t: %016lx\n", read_cr8());
#endif
}
static void print_desc_ptr(char *str, struct seq_file *seq, struct desc_ptr dt)
{
seq_printf(seq, " %s\t: %016llx\n", str, (u64)(dt.address | dt.size));
}
static void print_dt(void *seq)
{
struct desc_ptr dt;
unsigned long ldt;
/* IDT */
store_idt((struct desc_ptr *)&dt);
print_desc_ptr("IDT", seq, dt);
/* GDT */
store_gdt((struct desc_ptr *)&dt);
print_desc_ptr("GDT", seq, dt);
/* LDT */
store_ldt(ldt);
seq_printf(seq, " LDT\t: %016lx\n", ldt);
/* TR */
store_tr(ldt);
seq_printf(seq, " TR\t: %016lx\n", ldt);
}
static void print_dr(void *arg)
{
struct seq_file *seq = arg;
unsigned long dr;
int i;
for (i = 0; i < 8; i++) {
/* Ignore db4, db5 */
if ((i == 4) || (i == 5))
continue;
get_debugreg(dr, i);
seq_printf(seq, " dr%d\t: %016lx\n", i, dr);
}
seq_printf(seq, "\n MSR\t:\n");
}
static void print_apic(void *arg)
{
struct seq_file *seq = arg;
#ifdef CONFIG_X86_LOCAL_APIC
seq_printf(seq, " LAPIC\t:\n");
seq_printf(seq, " ID\t\t: %08x\n", apic_read(APIC_ID) >> 24);
seq_printf(seq, " LVR\t\t: %08x\n", apic_read(APIC_LVR));
seq_printf(seq, " TASKPRI\t: %08x\n", apic_read(APIC_TASKPRI));
seq_printf(seq, " ARBPRI\t\t: %08x\n", apic_read(APIC_ARBPRI));
seq_printf(seq, " PROCPRI\t: %08x\n", apic_read(APIC_PROCPRI));
seq_printf(seq, " LDR\t\t: %08x\n", apic_read(APIC_LDR));
seq_printf(seq, " DFR\t\t: %08x\n", apic_read(APIC_DFR));
seq_printf(seq, " SPIV\t\t: %08x\n", apic_read(APIC_SPIV));
seq_printf(seq, " ISR\t\t: %08x\n", apic_read(APIC_ISR));
seq_printf(seq, " ESR\t\t: %08x\n", apic_read(APIC_ESR));
seq_printf(seq, " ICR\t\t: %08x\n", apic_read(APIC_ICR));
seq_printf(seq, " ICR2\t\t: %08x\n", apic_read(APIC_ICR2));
seq_printf(seq, " LVTT\t\t: %08x\n", apic_read(APIC_LVTT));
seq_printf(seq, " LVTTHMR\t: %08x\n", apic_read(APIC_LVTTHMR));
seq_printf(seq, " LVTPC\t\t: %08x\n", apic_read(APIC_LVTPC));
seq_printf(seq, " LVT0\t\t: %08x\n", apic_read(APIC_LVT0));
seq_printf(seq, " LVT1\t\t: %08x\n", apic_read(APIC_LVT1));
seq_printf(seq, " LVTERR\t\t: %08x\n", apic_read(APIC_LVTERR));
seq_printf(seq, " TMICT\t\t: %08x\n", apic_read(APIC_TMICT));
seq_printf(seq, " TMCCT\t\t: %08x\n", apic_read(APIC_TMCCT));
seq_printf(seq, " TDCR\t\t: %08x\n", apic_read(APIC_TDCR));
#endif /* CONFIG_X86_LOCAL_APIC */
seq_printf(seq, "\n MSR\t:\n");
}
static int cpu_seq_show(struct seq_file *seq, void *v)
{
struct cpu_private *priv = seq->private;
if (priv == NULL)
return -EINVAL;
switch (cpu_base[priv->type].flag) {
case CPU_TSS:
smp_call_function_single(priv->cpu, print_tss, seq, 1);
break;
case CPU_CR:
smp_call_function_single(priv->cpu, print_cr, seq, 1);
break;
case CPU_DT:
smp_call_function_single(priv->cpu, print_dt, seq, 1);
break;
case CPU_DEBUG:
if (priv->file == CPU_INDEX_BIT)
smp_call_function_single(priv->cpu, print_dr, seq, 1);
print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
break;
case CPU_APIC:
if (priv->file == CPU_INDEX_BIT)
smp_call_function_single(priv->cpu, print_apic, seq, 1);
print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
break;
default:
print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
break;
}
seq_printf(seq, "\n");
return 0;
}
static void *cpu_seq_start(struct seq_file *seq, loff_t *pos)
{
if (*pos == 0) /* One time is enough ;-) */
return seq;
return NULL;
}
static void *cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
(*pos)++;
return cpu_seq_start(seq, pos);
}
static void cpu_seq_stop(struct seq_file *seq, void *v)
{
}
static const struct seq_operations cpu_seq_ops = {
.start = cpu_seq_start,
.next = cpu_seq_next,
.stop = cpu_seq_stop,
.show = cpu_seq_show,
};
static int cpu_seq_open(struct inode *inode, struct file *file)
{
struct cpu_private *priv = inode->i_private;
struct seq_file *seq;
int err;
err = seq_open(file, &cpu_seq_ops);
if (!err) {
seq = file->private_data;
seq->private = priv;
}
return err;
}
static const struct file_operations cpu_fops = {
.open = cpu_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg,
unsigned file, struct dentry *dentry)
{
struct cpu_private *priv = NULL;
/* Already intialized */
if (file == CPU_INDEX_BIT)
if (per_cpu(cpu_arr[type].init, cpu))
return 0;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
priv->cpu = cpu;
priv->type = type;
priv->reg = reg;
priv->file = file;
mutex_lock(&cpu_debug_lock);
per_cpu(priv_arr[type], cpu) = priv;
per_cpu(cpu_priv_count, cpu)++;
mutex_unlock(&cpu_debug_lock);
if (file)
debugfs_create_file(cpu_file[file].name, S_IRUGO,
dentry, (void *)priv, &cpu_fops);
else {
debugfs_create_file(cpu_base[type].name, S_IRUGO,
per_cpu(cpu_arr[type].dentry, cpu),
(void *)priv, &cpu_fops);
mutex_lock(&cpu_debug_lock);
per_cpu(cpu_arr[type].init, cpu) = 1;
mutex_unlock(&cpu_debug_lock);
}
return 0;
}
static int cpu_init_regfiles(unsigned cpu, unsigned int type, unsigned reg,
struct dentry *dentry)
{
unsigned file;
int err = 0;
for (file = 0; file < ARRAY_SIZE(cpu_file); file++) {
err = cpu_create_file(cpu, type, reg, file, dentry);
if (err)
return err;
}
return err;
}
static int cpu_init_msr(unsigned cpu, unsigned type, struct dentry *dentry)
{
struct dentry *cpu_dentry = NULL;
unsigned reg, reg_min, reg_max;
int i, range, err = 0;
char reg_dir[12];
u32 low, high;
range = get_cpu_range_count(cpu);
for (i = 0; i < range; i++) {
if (!get_cpu_range(cpu, &reg_min, &reg_max, i,
cpu_base[type].flag))
continue;
for (reg = reg_min; reg <= reg_max; reg++) {
if (rdmsr_safe_on_cpu(cpu, reg, &low, &high))
continue;
sprintf(reg_dir, "0x%x", reg);
cpu_dentry = debugfs_create_dir(reg_dir, dentry);
err = cpu_init_regfiles(cpu, type, reg, cpu_dentry);
if (err)
return err;
}
}
return err;
}
static int cpu_init_allreg(unsigned cpu, struct dentry *dentry)
{
struct dentry *cpu_dentry = NULL;
unsigned type;
int err = 0;
for (type = 0; type < ARRAY_SIZE(cpu_base) - 1; type++) {
if (!is_typeflag_valid(cpu, cpu_base[type].flag))
continue;
cpu_dentry = debugfs_create_dir(cpu_base[type].name, dentry);
per_cpu(cpu_arr[type].dentry, cpu) = cpu_dentry;
if (type < CPU_TSS_BIT)
err = cpu_init_msr(cpu, type, cpu_dentry);
else
err = cpu_create_file(cpu, type, 0, CPU_INDEX_BIT,
cpu_dentry);
if (err)
return err;
}
return err;
}
static int cpu_init_cpu(void)
{
struct dentry *cpu_dentry = NULL;
struct cpuinfo_x86 *cpui;
char cpu_dir[12];
unsigned cpu;
int err = 0;
for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
cpui = &cpu_data(cpu);
if (!cpu_has(cpui, X86_FEATURE_MSR))
continue;
per_cpu(cpu_model, cpu) = ((cpui->x86_vendor << 16) |
(cpui->x86 << 8) |
(cpui->x86_model));
per_cpu(cpu_modelflag, cpu) = get_cpu_modelflag(cpu);
sprintf(cpu_dir, "cpu%d", cpu);
cpu_dentry = debugfs_create_dir(cpu_dir, cpu_debugfs_dir);
err = cpu_init_allreg(cpu, cpu_dentry);
pr_info("cpu%d(%d) debug files %d\n",
cpu, nr_cpu_ids, per_cpu(cpu_priv_count, cpu));
if (per_cpu(cpu_priv_count, cpu) > MAX_CPU_FILES) {
pr_err("Register files count %d exceeds limit %d\n",
per_cpu(cpu_priv_count, cpu), MAX_CPU_FILES);
per_cpu(cpu_priv_count, cpu) = MAX_CPU_FILES;
err = -ENFILE;
}
if (err)
return err;
}
return err;
}
static int __init cpu_debug_init(void)
{
cpu_debugfs_dir = debugfs_create_dir("cpu", arch_debugfs_dir);
return cpu_init_cpu();
}
static void __exit cpu_debug_exit(void)
{
int i, cpu;
if (cpu_debugfs_dir)
debugfs_remove_recursive(cpu_debugfs_dir);
for (cpu = 0; cpu < nr_cpu_ids; cpu++)
for (i = 0; i < per_cpu(cpu_priv_count, cpu); i++)
kfree(per_cpu(priv_arr[i], cpu));
}
module_init(cpu_debug_init);
module_exit(cpu_debug_exit);
MODULE_AUTHOR("Jaswinder Singh Rajput");
MODULE_DESCRIPTION("CPU Debug module");
MODULE_LICENSE("GPL");

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

@ -74,8 +74,7 @@ static void ich_force_hpet_resume(void)
if (!force_hpet_address)
return;
if (rcba_base == NULL)
BUG();
BUG_ON(rcba_base == NULL);
/* read the Function Disable register, dword mode only */
val = readl(rcba_base + 0x3404);

19
arch/x86/mm/highmem_32.c
View File

@ -121,23 +121,30 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
pagefault_enable();
}
/* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
pagefault_disable();
idx = type + KM_TYPE_NR*smp_processor_id();
debug_kmap_atomic_prot(type);
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
arch_flush_lazy_mmu_mode();
return (void*) vaddr;
}
/* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
{
return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
}
EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
struct page *kmap_atomic_to_page(void *ptr)

13
arch/x86/mm/iomap_32.c
View File

@ -18,6 +18,7 @@
#include <asm/iomap.h>
#include <asm/pat.h>
#include <asm/highmem.h>
#include <linux/module.h>
int is_io_mapping_possible(resource_size_t base, unsigned long size)
@ -36,11 +37,6 @@ EXPORT_SYMBOL_GPL(is_io_mapping_possible);
void *
iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
pagefault_disable();
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
* PAGE_KERNEL_WC maps to PWT, which translates to uncached if the
@ -50,12 +46,7 @@ iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, prot));
arch_flush_lazy_mmu_mode();
return (void*) vaddr;
return kmap_atomic_prot_pfn(pfn, type, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);

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

@ -310,7 +310,7 @@ static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
struct kmmio_context *ctx = &get_cpu_var(kmmio_ctx);
if (!ctx->active) {
pr_warning("kmmio: spurious debug trap on CPU %d.\n",
pr_debug("kmmio: spurious debug trap on CPU %d.\n",
smp_processor_id());
goto out;
}

11
arch/x86/mm/pageattr.c
View File

@ -522,6 +522,17 @@ static int split_large_page(pte_t *kpte, unsigned long address)
* primary protection behavior:
*/
__set_pmd_pte(kpte, address, mk_pte(base, __pgprot(_KERNPG_TABLE)));
/*
* Intel Atom errata AAH41 workaround.
*
* The real fix should be in hw or in a microcode update, but
* we also probabilistically try to reduce the window of having
* a large TLB mixed with 4K TLBs while instruction fetches are
* going on.
*/
__flush_tlb_all();
base = NULL;
out_unlock:

9
drivers/char/hvcs.c
View File

@ -1139,15 +1139,6 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
hvcsd->tty = tty;
tty->driver_data = hvcsd;
/*
* Set this driver to low latency so that we actually have a chance at
* catching a throttled TTY after we flip_buffer_push. Otherwise the
* flush_to_async may not execute until after the kernel_thread has
* yielded and resumed the next flip_buffer_push resulting in data
* loss.
*/
tty->low_latency = 1;
memset(&hvcsd->buffer[0], 0x00, HVCS_BUFF_LEN);
/*

1
drivers/char/hvsi.c
View File

@ -810,7 +810,6 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
hp = &hvsi_ports[line];
tty->driver_data = hp;
tty->low_latency = 1; /* avoid throttle/tty_flip_buffer_push race */
mb();
if (hp->state == HVSI_FSP_DIED)

2
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1105,7 +1105,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
1024 * 1024,
MTRR_TYPE_WRCOMB, 1);
if (dev_priv->mm.gtt_mtrr < 0) {
DRM_INFO("MTRR allocation failed\n. Graphics "
DRM_INFO("MTRR allocation failed. Graphics "
"performance may suffer.\n");
}

7
drivers/gpu/drm/i915/i915_drv.h
View File

@ -279,7 +279,6 @@ typedef struct drm_i915_private {
u8 saveAR_INDEX;
u8 saveAR[21];
u8 saveDACMASK;
u8 saveDACDATA[256*3]; /* 256 3-byte colors */
u8 saveCR[37];
struct {
@ -457,6 +456,12 @@ struct drm_i915_gem_object {
/** for phy allocated objects */
struct drm_i915_gem_phys_object *phys_obj;
/**
* Used for checking the object doesn't appear more than once
* in an execbuffer object list.
*/
int in_execbuffer;
};
/**

115
drivers/gpu/drm/i915/i915_gem.c
View File

@ -1476,7 +1476,7 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
struct drm_i915_gem_object *obj_priv = obj->driver_private;
int regnum = obj_priv->fence_reg;
int tile_width;
uint32_t val;
uint32_t fence_reg, val;
uint32_t pitch_val;
if ((obj_priv->gtt_offset & ~I915_FENCE_START_MASK) ||
@ -1503,7 +1503,11 @@ static void i915_write_fence_reg(struct drm_i915_fence_reg *reg)
val |= pitch_val << I830_FENCE_PITCH_SHIFT;
val |= I830_FENCE_REG_VALID;
I915_WRITE(FENCE_REG_830_0 + (regnum * 4), val);
if (regnum < 8)
fence_reg = FENCE_REG_830_0 + (regnum * 4);
else
fence_reg = FENCE_REG_945_8 + ((regnum - 8) * 4);
I915_WRITE(fence_reg, val);
}
static void i830_write_fence_reg(struct drm_i915_fence_reg *reg)
@ -1557,7 +1561,8 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj_priv = obj->driver_private;
struct drm_i915_fence_reg *reg = NULL;
int i, ret;
struct drm_i915_gem_object *old_obj_priv = NULL;
int i, ret, avail;
switch (obj_priv->tiling_mode) {
case I915_TILING_NONE:
@ -1580,25 +1585,46 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
}
/* First try to find a free reg */
try_again:
avail = 0;
for (i = dev_priv->fence_reg_start; i < dev_priv->num_fence_regs; i++) {
reg = &dev_priv->fence_regs[i];
if (!reg->obj)
break;
old_obj_priv = reg->obj->driver_private;
if (!old_obj_priv->pin_count)
avail++;
}
/* None available, try to steal one or wait for a user to finish */
if (i == dev_priv->num_fence_regs) {
struct drm_i915_gem_object *old_obj_priv = NULL;
uint32_t seqno = dev_priv->mm.next_gem_seqno;
loff_t offset;
try_again:
/* Could try to use LRU here instead... */
if (avail == 0)
return -ENOMEM;
for (i = dev_priv->fence_reg_start;
i < dev_priv->num_fence_regs; i++) {
uint32_t this_seqno;
reg = &dev_priv->fence_regs[i];
old_obj_priv = reg->obj->driver_private;
if (!old_obj_priv->pin_count)
if (old_obj_priv->pin_count)
continue;
/* i915 uses fences for GPU access to tiled buffers */
if (IS_I965G(dev) || !old_obj_priv->active)
break;
/* find the seqno of the first available fence */
this_seqno = old_obj_priv->last_rendering_seqno;
if (this_seqno != 0 &&
reg->obj->write_domain == 0 &&
i915_seqno_passed(seqno, this_seqno))
seqno = this_seqno;
}
/*
@ -1606,15 +1632,25 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj, bool write)
* objects to finish before trying again.
*/
if (i == dev_priv->num_fence_regs) {
ret = i915_gem_object_set_to_gtt_domain(reg->obj, 0);
if (ret) {
WARN(ret != -ERESTARTSYS,
"switch to GTT domain failed: %d\n", ret);
return ret;
if (seqno == dev_priv->mm.next_gem_seqno) {
i915_gem_flush(dev,
I915_GEM_GPU_DOMAINS,
I915_GEM_GPU_DOMAINS);
seqno = i915_add_request(dev,
I915_GEM_GPU_DOMAINS);
if (seqno == 0)
return -ENOMEM;
}
ret = i915_wait_request(dev, seqno);
if (ret)
return ret;
goto try_again;
}
BUG_ON(old_obj_priv->active ||
(reg->obj->write_domain & I915_GEM_GPU_DOMAINS));
/*
* Zap this virtual mapping so we can set up a fence again
* for this object next time we need it.
@ -1655,8 +1691,17 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
if (IS_I965G(dev))
I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
else
I915_WRITE(FENCE_REG_830_0 + (obj_priv->fence_reg * 4), 0);
else {
uint32_t fence_reg;
if (obj_priv->fence_reg < 8)
fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
else
fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
8) * 4;
I915_WRITE(fence_reg, 0);
}
dev_priv->fence_regs[obj_priv->fence_reg].obj = NULL;
obj_priv->fence_reg = I915_FENCE_REG_NONE;
@ -2469,6 +2514,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_i915_gem_exec_object *exec_list = NULL;
struct drm_gem_object **object_list = NULL;
struct drm_gem_object *batch_obj;
struct drm_i915_gem_object *obj_priv;
int ret, i, pinned = 0;
uint64_t exec_offset;
uint32_t seqno, flush_domains;
@ -2533,6 +2579,15 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
ret = -EBADF;
goto err;
}
obj_priv = object_list[i]->driver_private;
if (obj_priv->in_execbuffer) {
DRM_ERROR("Object %p appears more than once in object list\n",
object_list[i]);
ret = -EBADF;
goto err;
}
obj_priv->in_execbuffer = true;
}
/* Pin and relocate */
@ -2674,8 +2729,13 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
for (i = 0; i < pinned; i++)
i915_gem_object_unpin(object_list[i]);
for (i = 0; i < args->buffer_count; i++)
for (i = 0; i < args->buffer_count; i++) {
if (object_list[i]) {
obj_priv = object_list[i]->driver_private;
obj_priv->in_execbuffer = false;
}
drm_gem_object_unreference(object_list[i]);
}
mutex_unlock(&dev->struct_mutex);
@ -2712,17 +2772,24 @@ i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment)
ret = i915_gem_object_bind_to_gtt(obj, alignment);
if (ret != 0) {
if (ret != -EBUSY && ret != -ERESTARTSYS)
DRM_ERROR("Failure to bind: %d", ret);
DRM_ERROR("Failure to bind: %d\n", ret);
return ret;
}
}
/*
* Pre-965 chips need a fence register set up in order to
* properly handle tiled surfaces.
*/
if (!IS_I965G(dev) &&
obj_priv->fence_reg == I915_FENCE_REG_NONE &&
obj_priv->tiling_mode != I915_TILING_NONE) {
ret = i915_gem_object_get_fence_reg(obj, true);
if (ret != 0) {
if (ret != -EBUSY && ret != -ERESTARTSYS)
DRM_ERROR("Failure to install fence: %d\n",
ret);
return ret;
}
/*
* Pre-965 chips need a fence register set up in order to
* properly handle tiled surfaces.
*/
if (!IS_I965G(dev) &&
obj_priv->fence_reg == I915_FENCE_REG_NONE &&
obj_priv->tiling_mode != I915_TILING_NONE)
i915_gem_object_get_fence_reg(obj, true);
}
obj_priv->pin_count++;

1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -184,6 +184,7 @@
* Fence registers
*/
#define FENCE_REG_830_0 0x2000
#define FENCE_REG_945_8 0x3000
#define I830_FENCE_START_MASK 0x07f80000
#define I830_FENCE_TILING_Y_SHIFT 12
#define I830_FENCE_SIZE_BITS(size) ((ffs((size) >> 19) - 1) << 8)

11
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -119,11 +119,6 @@ static void i915_save_vga(struct drm_device *dev)
/* VGA color palette registers */
dev_priv->saveDACMASK = I915_READ8(VGA_DACMASK);
/* DACCRX automatically increments during read */
I915_WRITE8(VGA_DACRX, 0);
/* Read 3 bytes of color data from each index */
for (i = 0; i < 256 * 3; i++)
dev_priv->saveDACDATA[i] = I915_READ8(VGA_DACDATA);
/* MSR bits */
dev_priv->saveMSR = I915_READ8(VGA_MSR_READ);
@ -225,12 +220,6 @@ static void i915_restore_vga(struct drm_device *dev)
/* VGA color palette registers */
I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK);
/* DACCRX automatically increments during read */
I915_WRITE8(VGA_DACWX, 0);
/* Read 3 bytes of color data from each index */
for (i = 0; i < 256 * 3; i++)
I915_WRITE8(VGA_DACDATA, dev_priv->saveDACDATA[i]);
}
int i915_save_state(struct drm_device *dev)

10
drivers/video/aty/aty128fb.c
View File

@ -1853,13 +1853,14 @@ static void aty128_bl_exit(struct backlight_device *bd)
* Initialisation
*/
#ifdef CONFIG_PPC_PMAC
#ifdef CONFIG_PPC_PMAC__disabled
static void aty128_early_resume(void *data)
{
struct aty128fb_par *par = data;
if (try_acquire_console_sem())
return;
pci_restore_state(par->pdev);
aty128_do_resume(par->pdev);
release_console_sem();
}
@ -1907,7 +1908,14 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i
/* Indicate sleep capability */
if (par->chip_gen == rage_M3) {
pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1);
#if 0 /* Disable the early video resume hack for now as it's causing problems, among
* others we now rely on the PCI core restoring the config space for us, which
* isn't the case with that hack, and that code path causes various things to
* be called with interrupts off while they shouldn't. I'm leaving the code in
* as it can be useful for debugging purposes
*/
pmac_set_early_video_resume(aty128_early_resume, par);
#endif
}
/* Find default mode */

10
drivers/video/aty/radeon_pm.c
View File

@ -2762,12 +2762,13 @@ int radeonfb_pci_resume(struct pci_dev *pdev)
return rc;
}
#ifdef CONFIG_PPC_OF
#ifdef CONFIG_PPC_OF__disabled
static void radeonfb_early_resume(void *data)
{
struct radeonfb_info *rinfo = data;
rinfo->no_schedule = 1;
pci_restore_state(rinfo->pdev);
radeonfb_pci_resume(rinfo->pdev);
rinfo->no_schedule = 0;
}
@ -2834,7 +2835,14 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
*/
if (rinfo->pm_mode != radeon_pm_none) {
pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, rinfo->of_node, 0, 1);
#if 0 /* Disable the early video resume hack for now as it's causing problems, among
* others we now rely on the PCI core restoring the config space for us, which
* isn't the case with that hack, and that code path causes various things to
* be called with interrupts off while they shouldn't. I'm leaving the code in
* as it can be useful for debugging purposes
*/
pmac_set_early_video_resume(radeonfb_early_resume, rinfo);
#endif
}
#if 0

4
fs/fat/inode.c
View File

@ -202,9 +202,9 @@ static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
sector_t blocknr;
/* fat_get_cluster() assumes the requested blocknr isn't truncated. */
mutex_lock(&mapping->host->i_mutex);
down_read(&mapping->host->i_alloc_sem);
blocknr = generic_block_bmap(mapping, block, fat_get_block);
mutex_unlock(&mapping->host->i_mutex);
up_read(&mapping->host->i_alloc_sem);
return blocknr;
}

2
fs/proc/page.c
View File

@ -80,7 +80,7 @@ static const struct file_operations proc_kpagecount_operations = {
#define KPF_RECLAIM 9
#define KPF_BUDDY 10
#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
#define kpf_copy_bit(flags, dstpos, srcpos) (((flags >> srcpos) & 1) << dstpos)
static ssize_t kpageflags_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)

2
include/drm/drm_edid.h
View File

@ -69,8 +69,8 @@ struct detailed_pixel_timing {
u8 hborder;
u8 vborder;
u8 unknown0:1;
u8 vsync_positive:1;
u8 hsync_positive:1;
u8 vsync_positive:1;
u8 separate_sync:2;
u8 stereo:1;
u8 unknown6:1;