Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[PATCH] x86-64: Use X86_EFLAGS_IF in x86-64/irqflags.h.

Browse source 
As per i386 patch: move X86_EFLAGS_IF et al out to a new header:
processor-flags.h, so we can include it from irqflags.h and use it in
raw_irqs_disabled_flags().

As a side-effect, we could now use these flags in .S files.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen 2007-05-02 19:27:11 +02:00 committed by Andi Kleen
parent b92e9fac40
commit 5d02d7ae73
3 changed files with 32 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
include/asm-x86_64/irqflags.h
View file

@ -9,6 +9,7 @@
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
#include <asm/processor-flags.h>
#ifndef __ASSEMBLY__
/*
@ -53,19 +54,19 @@ static inline void raw_local_irq_disable(void)
{
unsigned long flags = __raw_local_save_flags();
raw_local_irq_restore((flags & ~(1 << 9)) | (1 << 18));
raw_local_irq_restore((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC);
}
static inline void raw_local_irq_enable(void)
{
unsigned long flags = __raw_local_save_flags();
raw_local_irq_restore((flags | (1 << 9)) & ~(1 << 18));
raw_local_irq_restore((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC));
}
static inline int raw_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (1<<9)) || (flags & (1 << 18));
return !(flags & X86_EFLAGS_IF) || (flags & X86_EFLAGS_AC);
}
#else /* CONFIG_X86_VSMP */
@ -82,7 +83,7 @@ static inline void raw_local_irq_enable(void)
static inline int raw_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (1 << 9));
return !(flags & X86_EFLAGS_IF);
}
#endif

26
include/asm-x86_64/processor-flags.h Normal file
View file

@ -0,0 +1,26 @@
#ifndef __ASM_X86_64_PROCESSOR_FLAGS_H
#define __ASM_X86_64_PROCESSOR_FLAGS_H
/* Various flags defined: can be included from assembler. */
/*
* EFLAGS bits
*/
#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
#define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
#define X86_EFLAGS_AF 0x00000010 /* Auxillary carry Flag */
#define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
#define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
#define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
#define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
#define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
#define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
#define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
#define X86_EFLAGS_NT 0x00004000 /* Nested Task */
#define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
#define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
#define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
#define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
#define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
#endif /* __ASM_X86_64_PROCESSOR_FLAGS_H */

22
include/asm-x86_64/processor.h
View file

@ -20,6 +20,7 @@
#include <asm/percpu.h>
#include <linux/personality.h>
#include <linux/cpumask.h>
#include <asm/processor-flags.h>
#define TF_MASK 0x00000100
#define IF_MASK 0x00000200
@ -102,27 +103,6 @@ extern void print_cpu_info(struct cpuinfo_x86 *);
extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
extern unsigned short num_cache_leaves;
/*
* EFLAGS bits
*/
#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
#define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
#define X86_EFLAGS_AF 0x00000010 /* Auxillary carry Flag */
#define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
#define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
#define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
#define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
#define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
#define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
#define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
#define X86_EFLAGS_NT 0x00004000 /* Nested Task */
#define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
#define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
#define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
#define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
#define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
/*
* Intel CPU features in CR4
*/