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Merge branches 'x86/asm', 'x86/cleanups' and 'x86/headers' into x86/core

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This commit is contained in:
Ingo Molnar
2009-02-20 17:40:50 +01:00
parent 3b6f7b9beb cb425afd21 ecab22aa6d e9ce0c37c2
commit 609162850d
38 changed files with 87 additions and 158 deletions
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arch/x86/boot/compressed/head_32.S
+4 -4
View File
@@ -25,14 +25,12 @@
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/asm-offsets.h>
.section ".text.head","ax",@progbits
.globl startup_32
startup_32:
ENTRY(startup_32)
cld
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments */
@@ -113,6 +111,8 @@ startup_32:
*/
leal relocated(%ebx), %eax
jmp *%eax
ENDPROC(startup_32)
.section ".text"
relocated:
arch/x86/boot/compressed/head_64.S
+4 -6
View File
@@ -26,8 +26,8 @@
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/pgtable_types.h>
#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/msr.h>
#include <asm/processor-flags.h>
@@ -35,9 +35,7 @@
.section ".text.head"
.code32
.globl startup_32
startup_32:
ENTRY(startup_32)
cld
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
* us to not reload segments */
@@ -176,6 +174,7 @@ startup_32:
/* Jump from 32bit compatibility mode into 64bit mode. */
lret
ENDPROC(startup_32)
no_longmode:
/* This isn't an x86-64 CPU so hang */
@@ -295,7 +294,6 @@ relocated:
call decompress_kernel
popq %rsi
/*
* Jump to the decompressed kernel.
*/
arch/x86/boot/copy.S
+14 -26
View File
@@ -8,6 +8,8 @@
*
* ----------------------------------------------------------------------- */
#include <linux/linkage.h>
/*
* Memory copy routines
*/
@@ -15,9 +17,7 @@
.code16gcc
.text
.globl memcpy
.type memcpy, @function
memcpy:
GLOBAL(memcpy)
pushw %si
pushw %di
movw %ax, %di
@@ -31,11 +31,9 @@ memcpy:
popw %di
popw %si
ret
.size memcpy, .-memcpy
ENDPROC(memcpy)
.globl memset
.type memset, @function
memset:
GLOBAL(memset)
pushw %di
movw %ax, %di
movzbl %dl, %eax
@@ -48,52 +46,42 @@ memset:
rep; stosb
popw %di
ret
.size memset, .-memset
ENDPROC(memset)
.globl copy_from_fs
.type copy_from_fs, @function
copy_from_fs:
GLOBAL(copy_from_fs)
pushw %ds
pushw %fs
popw %ds
call memcpy
popw %ds
ret
.size copy_from_fs, .-copy_from_fs
ENDPROC(copy_from_fs)
.globl copy_to_fs
.type copy_to_fs, @function
copy_to_fs:
GLOBAL(copy_to_fs)
pushw %es
pushw %fs
popw %es
call memcpy
popw %es
ret
.size copy_to_fs, .-copy_to_fs
ENDPROC(copy_to_fs)
#if 0 /* Not currently used, but can be enabled as needed */
.globl copy_from_gs
.type copy_from_gs, @function
copy_from_gs:
GLOBAL(copy_from_gs)
pushw %ds
pushw %gs
popw %ds
call memcpy
popw %ds
ret
.size copy_from_gs, .-copy_from_gs
.globl copy_to_gs
ENDPROC(copy_from_gs)
.type copy_to_gs, @function
copy_to_gs:
GLOBAL(copy_to_gs)
pushw %es
pushw %gs
popw %es
call memcpy
popw %es
ret
.size copy_to_gs, .-copy_to_gs
ENDPROC(copy_to_gs)
#endif
arch/x86/boot/header.S
+1 -1
View File
@@ -19,7 +19,7 @@
#include <linux/utsrelease.h>
#include <asm/boot.h>
#include <asm/e820.h>
#include <asm/page.h>
#include <asm/page_types.h>
#include <asm/setup.h>
#include "boot.h"
#include "offsets.h"
arch/x86/boot/pmjump.S
+5 -11
View File
@@ -15,18 +15,15 @@
#include <asm/boot.h>
#include <asm/processor-flags.h>
#include <asm/segment.h>
#include <linux/linkage.h>
.text
.globl protected_mode_jump
.type protected_mode_jump, @function
.code16
/*
* void protected_mode_jump(u32 entrypoint, u32 bootparams);
*/
protected_mode_jump:
GLOBAL(protected_mode_jump)
movl %edx, %esi # Pointer to boot_params table
xorl %ebx, %ebx
@@ -47,12 +44,10 @@ protected_mode_jump:
.byte 0x66, 0xea # ljmpl opcode
2: .long in_pm32 # offset
.word __BOOT_CS # segment
.size protected_mode_jump, .-protected_mode_jump
ENDPROC(protected_mode_jump)
.code32
.type in_pm32, @function
in_pm32:
GLOBAL(in_pm32)
# Set up data segments for flat 32-bit mode
movl %ecx, %ds
movl %ecx, %es
@@ -78,5 +73,4 @@ in_pm32:
lldt %cx
jmpl *%eax # Jump to the 32-bit entrypoint
.size in_pm32, .-in_pm32
ENDPROC(in_pm32)
arch/x86/include/asm/io.h
+8 -3
View File
@@ -124,10 +124,15 @@ static inline void *phys_to_virt(phys_addr_t address)
/*
* ISA I/O bus memory addresses are 1:1 with the physical address.
* However, we truncate the address to unsigned int to avoid undesirable
* promitions in legacy drivers.
*/
#define isa_virt_to_bus (unsigned long)virt_to_phys
#define isa_page_to_bus page_to_phys
#define isa_bus_to_virt phys_to_virt
static inline unsigned int isa_virt_to_bus(volatile void *address)
{
return (unsigned int)virt_to_phys(address);
}
#define isa_page_to_bus(page) ((unsigned int)page_to_phys(page))
#define isa_bus_to_virt phys_to_virt
/*
* However PCI ones are not necessarily 1:1 and therefore these interfaces
arch/x86/include/asm/linkage.h
+4 -60
View File
@@ -52,70 +52,14 @@
#endif
#define GLOBAL(name) \
.globl name; \
name:
#ifdef CONFIG_X86_ALIGNMENT_16
#define __ALIGN .align 16,0x90
#define __ALIGN_STR ".align 16,0x90"
#endif
/*
* to check ENTRY_X86/END_X86 and
* KPROBE_ENTRY_X86/KPROBE_END_X86
* unbalanced-missed-mixed appearance
*/
#define __set_entry_x86 .set ENTRY_X86_IN, 0
#define __unset_entry_x86 .set ENTRY_X86_IN, 1
#define __set_kprobe_x86 .set KPROBE_X86_IN, 0
#define __unset_kprobe_x86 .set KPROBE_X86_IN, 1
#define __macro_err_x86 .error "ENTRY_X86/KPROBE_X86 unbalanced,missed,mixed"
#define __check_entry_x86 \
.ifdef ENTRY_X86_IN; \
.ifeq ENTRY_X86_IN; \
__macro_err_x86; \
.abort; \
.endif; \
.endif
#define __check_kprobe_x86 \
.ifdef KPROBE_X86_IN; \
.ifeq KPROBE_X86_IN; \
__macro_err_x86; \
.abort; \
.endif; \
.endif
#define __check_entry_kprobe_x86 \
__check_entry_x86; \
__check_kprobe_x86
#define ENTRY_KPROBE_FINAL_X86 __check_entry_kprobe_x86
#define ENTRY_X86(name) \
__check_entry_kprobe_x86; \
__set_entry_x86; \
.globl name; \
__ALIGN; \
name:
#define END_X86(name) \
__unset_entry_x86; \
__check_entry_kprobe_x86; \
.size name, .-name
#define KPROBE_ENTRY_X86(name) \
__check_entry_kprobe_x86; \
__set_kprobe_x86; \
.pushsection .kprobes.text, "ax"; \
.globl name; \
__ALIGN; \
name:
#define KPROBE_END_X86(name) \
__unset_kprobe_x86; \
__check_entry_kprobe_x86; \
.size name, .-name; \
.popsection
#endif /* _ASM_X86_LINKAGE_H */
arch/x86/include/asm/page_32_types.h
-2
View File
@@ -33,12 +33,10 @@
/* 44=32+12, the limit we can fit into an unsigned long pfn */
#define __PHYSICAL_MASK_SHIFT 44
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 3
#else /* !CONFIG_X86_PAE */
#define __PHYSICAL_MASK_SHIFT 32
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 2
#endif /* CONFIG_X86_PAE */
#ifndef __ASSEMBLY__
arch/x86/include/asm/page_64_types.h
-2
View File
@@ -1,8 +1,6 @@
#ifndef _ASM_X86_PAGE_64_DEFS_H
#define _ASM_X86_PAGE_64_DEFS_H
#define PAGETABLE_LEVELS 4
#define THREAD_ORDER 1
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define CURRENT_MASK (~(THREAD_SIZE - 1))
arch/x86/include/asm/page_types.h
-6
View File
@@ -16,12 +16,6 @@
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
arch/x86/include/asm/pgtable-2level_types.h
+2
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@@ -17,6 +17,7 @@ typedef union {
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
#define PAGETABLE_LEVELS 2
/*
* traditional i386 two-level paging structure:
@@ -25,6 +26,7 @@ typedef union {
#define PGDIR_SHIFT 22
#define PTRS_PER_PGD 1024
/*
* the i386 is two-level, so we don't really have any
* PMD directory physically.
arch/x86/include/asm/pgtable-3level_types.h
+2
View File
@@ -24,6 +24,8 @@ typedef union {
#define SHARED_KERNEL_PMD 1
#endif
#define PAGETABLE_LEVELS 3
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
arch/x86/include/asm/pgtable_64_types.h
+1
View File
@@ -18,6 +18,7 @@ typedef struct { pteval_t pte; } pte_t;
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
#define PAGETABLE_LEVELS 4
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
arch/x86/include/asm/pgtable_types.h
+6
View File
@@ -173,6 +173,12 @@
#include <linux/types.h>
/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)
typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
typedef struct { pgdval_t pgd; } pgd_t;
arch/x86/include/asm/processor.h
-1
View File
@@ -403,7 +403,6 @@ DECLARE_PER_CPU(unsigned long, stack_canary);
#endif
#endif /* X86_64 */
extern void print_cpu_info(struct cpuinfo_x86 *);
extern unsigned int xstate_size;
extern void free_thread_xstate(struct task_struct *);
extern struct kmem_cache *task_xstate_cachep;
arch/x86/include/asm/syscalls.h
+1 -1
View File
@@ -82,7 +82,7 @@ asmlinkage long sys_iopl(unsigned int, struct pt_regs *);
/* kernel/signal_64.c */
asmlinkage long sys_sigaltstack(const stack_t __user *, stack_t __user *,
struct pt_regs *);
asmlinkage long sys_rt_sigreturn(struct pt_regs *);
long sys_rt_sigreturn(struct pt_regs *);
/* kernel/sys_x86_64.c */
asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
arch/x86/kernel/acpi/realmode/wakeup.S
+2 -2
View File
@@ -3,8 +3,8 @@
*/
#include <asm/segment.h>
#include <asm/msr-index.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/page_types.h>
#include <asm/pgtable_types.h>
#include <asm/processor-flags.h>
.code16
arch/x86/kernel/acpi/wakeup_32.S
+1 -1
View File
@@ -1,7 +1,7 @@
.section .text.page_aligned
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/page_types.h>
# Copyright 2003, 2008 Pavel Machek <pavel@suse.cz>, distribute under GPLv2
arch/x86/kernel/acpi/wakeup_64.S
+2 -2
View File
@@ -1,8 +1,8 @@
.text
#include <linux/linkage.h>
#include <asm/segment.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/pgtable_types.h>
#include <asm/page_types.h>
#include <asm/msr.h>
#include <asm/asm-offsets.h>
arch/x86/kernel/cpu/cpufreq/e_powersaver.c
+3 -3
View File
@@ -204,12 +204,12 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
}
/* Enable Enhanced PowerSaver */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
if (!(val & 1 << 16)) {
val |= 1 << 16;
if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
val |= MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP;
wrmsrl(MSR_IA32_MISC_ENABLE, val);
/* Can be locked at 0 */
rdmsrl(MSR_IA32_MISC_ENABLE, val);
if (!(val & 1 << 16)) {
if (!(val & MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP)) {
printk(KERN_INFO "eps: Can't enable Enhanced PowerSaver\n");
return -ENODEV;
}

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