X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-x86_64%2Fpda.h;h=b47c3df9ed1dd72d792ceca2e6f8f5d6338b7556;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=36b766cfc4d5630992c14e374d3a550fab7a54eb;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 36b766cfc..b47c3df9e 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h @@ -5,30 +5,32 @@ #include #include #include +#include /* Per processor datastructure. %gs points to it while the kernel runs */ struct x8664_pda { struct task_struct *pcurrent; /* Current process */ unsigned long data_offset; /* Per cpu data offset from linker address */ - struct x8664_pda *me; /* Pointer to itself */ unsigned long kernelstack; /* top of kernel stack for current */ unsigned long oldrsp; /* user rsp for system call */ - unsigned long irqrsp; /* Old rsp for interrupts. */ +#if DEBUG_STKSZ > EXCEPTION_STKSZ + unsigned long debugstack; /* #DB/#BP stack. */ +#endif int irqcount; /* Irq nesting counter. Starts with -1 */ int cpunumber; /* Logical CPU number */ char *irqstackptr; /* top of irqstack */ + int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ - struct mm_struct *active_mm; int mmu_state; + struct mm_struct *active_mm; unsigned apic_timer_irqs; -} ____cacheline_aligned; - +} ____cacheline_aligned_in_smp; -#define IRQSTACK_ORDER 2 -#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER) +extern struct x8664_pda *_cpu_pda[]; +extern struct x8664_pda boot_cpu_pda[]; -extern struct x8664_pda cpu_pda[]; +#define cpu_pda(i) (_cpu_pda[i]) /* * There is no fast way to get the base address of the PDA, all the accesses @@ -42,13 +44,14 @@ extern void __bad_pda_field(void); #define pda_offset(field) offsetof(struct x8664_pda, field) #define pda_to_op(op,field,val) do { \ + typedef typeof_field(struct x8664_pda, field) T__; \ switch (sizeof_field(struct x8664_pda, field)) { \ case 2: \ -asm volatile(op "w %0,%%gs:%P1"::"r" (val),"i"(pda_offset(field)):"memory"); break; \ +asm volatile(op "w %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ case 4: \ -asm volatile(op "l %0,%%gs:%P1"::"r" (val),"i"(pda_offset(field)):"memory"); break; \ +asm volatile(op "l %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ case 8: \ -asm volatile(op "q %0,%%gs:%P1"::"r" (val),"i"(pda_offset(field)):"memory"); break; \ +asm volatile(op "q %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ default: __bad_pda_field(); \ } \ } while (0) @@ -58,7 +61,7 @@ asm volatile(op "q %0,%%gs:%P1"::"r" (val),"i"(pda_offset(field)):"memory"); bre * Unfortunately removing them causes all hell to break lose currently. */ #define pda_from_op(op,field) ({ \ - typedef typeof_field(struct x8664_pda, field) T__; T__ ret__; \ + typeof_field(struct x8664_pda, field) ret__; \ switch (sizeof_field(struct x8664_pda, field)) { \ case 2: \ asm volatile(op "w %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ @@ -75,6 +78,7 @@ asm volatile(op "q %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); b #define write_pda(field,val) pda_to_op("mov",field,val) #define add_pda(field,val) pda_to_op("add",field,val) #define sub_pda(field,val) pda_to_op("sub",field,val) +#define or_pda(field,val) pda_to_op("or",field,val) #endif