i386/x86_64: move headers to include/asm-x86

[~andy/linux] / include / asm-x86_64 / pda.h

diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h
deleted file mode 100644 (file)
index 5642634..0000000
--- a/include/asm-x86_64/pda.h
+++ /dev/null
@@ -1,125 +0,0 @@
-#ifndef X86_64_PDA_H
-#define X86_64_PDA_H
-
-#ifndef __ASSEMBLY__
-#include <linux/stddef.h>
-#include <linux/types.h>
-#include <linux/cache.h>
-#include <asm/page.h>
-
-/* Per processor datastructure. %gs points to it while the kernel runs */ 
-struct x8664_pda {
-       struct task_struct *pcurrent;   /* 0  Current process */
-       unsigned long data_offset;      /* 8 Per cpu data offset from linker
-                                          address */
-       unsigned long kernelstack;  /* 16 top of kernel stack for current */
-       unsigned long oldrsp;       /* 24 user rsp for system call */
-        int irqcount;              /* 32 Irq nesting counter. Starts with -1 */
-       int cpunumber;              /* 36 Logical CPU number */
-#ifdef CONFIG_CC_STACKPROTECTOR
-       unsigned long stack_canary;     /* 40 stack canary value */
-                                       /* gcc-ABI: this canary MUST be at
-                                          offset 40!!! */
-#endif
-       char *irqstackptr;
-       int nodenumber;             /* number of current node */
-       unsigned int __softirq_pending;
-       unsigned int __nmi_count;       /* number of NMI on this CPUs */
-       short mmu_state;
-       short isidle;
-       struct mm_struct *active_mm;
-       unsigned apic_timer_irqs;
-} ____cacheline_aligned_in_smp;
-
-extern struct x8664_pda *_cpu_pda[];
-extern struct x8664_pda boot_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
- * have to mention %fs/%gs.  So it needs to be done this Torvaldian way.
- */ 
-extern void __bad_pda_field(void) __attribute__((noreturn));
-
-/*
- * proxy_pda doesn't actually exist, but tell gcc it is accessed for
- * all PDA accesses so it gets read/write dependencies right.
- */
-extern struct x8664_pda _proxy_pda;
-
-#define pda_offset(field) offsetof(struct x8664_pda, field)
-
-#define pda_to_op(op,field,val) do {           \
-       typedef typeof(_proxy_pda.field) T__;   \
-       if (0) { T__ tmp__; tmp__ = (val); }    /* type checking */ \
-       switch (sizeof(_proxy_pda.field)) {     \
-       case 2:                                 \
-               asm(op "w %1,%%gs:%c2" :        \
-                   "+m" (_proxy_pda.field) :   \
-                   "ri" ((T__)val),            \
-                   "i"(pda_offset(field)));    \
-               break;                          \
-       case 4:                                 \
-               asm(op "l %1,%%gs:%c2" :        \
-                   "+m" (_proxy_pda.field) :   \
-                   "ri" ((T__)val),            \
-                   "i" (pda_offset(field)));   \
-               break;                          \
-       case 8:                                 \
-               asm(op "q %1,%%gs:%c2":         \
-                   "+m" (_proxy_pda.field) :   \
-                   "ri" ((T__)val),            \
-                   "i"(pda_offset(field)));    \
-               break;                          \
-       default:                                \
-               __bad_pda_field();              \
-       }                                       \
-       } while (0)
-
-#define pda_from_op(op,field) ({               \
-       typeof(_proxy_pda.field) ret__;         \
-       switch (sizeof(_proxy_pda.field)) {     \
-               case 2:                                 \
-               asm(op "w %%gs:%c1,%0" :        \
-                   "=r" (ret__) :              \
-                   "i" (pda_offset(field)),    \
-                   "m" (_proxy_pda.field));    \
-                break;                         \
-       case 4:                                 \
-               asm(op "l %%gs:%c1,%0":         \
-                   "=r" (ret__):               \
-                   "i" (pda_offset(field)),    \
-                   "m" (_proxy_pda.field));    \
-                break;                         \
-       case 8:                                 \
-               asm(op "q %%gs:%c1,%0":         \
-                   "=r" (ret__) :              \
-                   "i" (pda_offset(field)),    \
-                   "m" (_proxy_pda.field));    \
-                break;                         \
-       default:                                \
-               __bad_pda_field();              \
-       }                                       \
-       ret__; })
-
-#define read_pda(field) pda_from_op("mov",field)
-#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)
-
-/* This is not atomic against other CPUs -- CPU preemption needs to be off */
-#define test_and_clear_bit_pda(bit,field) ({           \
-       int old__;                                              \
-       asm volatile("btr %2,%%gs:%c3\n\tsbbl %0,%0"            \
-           : "=r" (old__), "+m" (_proxy_pda.field)             \
-           : "dIr" (bit), "i" (pda_offset(field)) : "memory"); \
-       old__;                                                  \
-})
-
-#endif
-
-#define PDA_STACKOFFSET (5*8)
-
-#endif