lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86: unify thread struct.

Browse Source 
The thread_struct is not fundamentally different between architectures, and
this patch puts it in the common header. What's really unique for each of
them is enclosed in ifdefs.

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber de Oliveira Costa
2008-01-30 13:31:31 +01:00
committed by Ingo Molnar
parent 7818a1e029
commit cb38d37733
3 changed files with 44 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
include/asm-x86/processor.h
View File

@@ -126,6 +126,50 @@ extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
extern unsigned short num_cache_leaves;
struct thread_struct {
/* cached TLS descriptors. */
struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
unsigned long sp0;
unsigned long sp;
#ifdef CONFIG_X86_32
unsigned long sysenter_cs;
#else
unsigned long usersp; /* Copy from PDA */
unsigned short es, ds, fsindex, gsindex;
#endif
unsigned long ip;
unsigned long fs;
unsigned long gs;
/* Hardware debugging registers */
unsigned long debugreg0;
unsigned long debugreg1;
unsigned long debugreg2;
unsigned long debugreg3;
unsigned long debugreg6;
unsigned long debugreg7;
/* fault info */
unsigned long cr2, trap_no, error_code;
/* floating point info */
union i387_union i387 __attribute__((aligned(16)));;
#ifdef CONFIG_X86_32
/* virtual 86 mode info */
struct vm86_struct __user *vm86_info;
unsigned long screen_bitmap;
unsigned long v86flags, v86mask, saved_sp0;
unsigned int saved_fs, saved_gs;
#endif
/* IO permissions */
unsigned long *io_bitmap_ptr;
unsigned long iopl;
/* max allowed port in the bitmap, in bytes: */
unsigned io_bitmap_max;
/* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set. */
unsigned long debugctlmsr;
/* Debug Store - if not 0 points to a DS Save Area configuration;
* goes into MSR_IA32_DS_AREA */
unsigned long ds_area_msr;
};
static inline unsigned long native_get_debugreg(int regno)
{
unsigned long val = 0; /* Damn you, gcc! */