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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-30 13:31:14 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:31:14 +0100
commit881c2975d02b6575c417a6eee40868d60a9ecba9 (patch)
tree402785bef46e3051aca5d006eaddbf0b99aff502 /include/asm-x86/desc_32.h
parent59fbed775aa5a6f352bfbde6b40508b541086b7e (diff)
x86: unify non-paravirt parts of desc.h
This patch unifies the non-paravirt part of desc_{32,64}.h into desc.h. Most of it, is simply common code, that is moved to the shared header. The only exception is the set_ldt_desc in desc_64.h, which is changed - included its name - to accomodate for the way the ldt is set up in i386. Also, constant definitions used in desc_32.h are moved to desc_defs.h 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>
Diffstat (limited to 'include/asm-x86/desc_32.h')
-rw-r--r--include/asm-x86/desc_32.h58
1 files changed, 0 insertions, 58 deletions
diff --git a/include/asm-x86/desc_32.h b/include/asm-x86/desc_32.h
index 14238df87c7..01415ad35fd 100644
--- a/include/asm-x86/desc_32.h
+++ b/include/asm-x86/desc_32.h
@@ -11,8 +11,6 @@
#include <linux/smp.h>
#include <linux/percpu.h>
-#include <asm/mmu.h>
-
struct gdt_page
{
struct desc_struct gdt[GDT_ENTRIES];
@@ -24,8 +22,6 @@ static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
return per_cpu(gdt_page, cpu).gdt;
}
-extern struct desc_ptr idt_descr;
-extern gate_desc idt_table[];
extern void set_intr_gate(unsigned int irq, void * addr);
static inline void pack_descriptor(struct desc_struct *desc,
@@ -172,36 +168,6 @@ static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const vo
#define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr)
-#define LDT_empty(info) (\
- (info)->base_addr == 0 && \
- (info)->limit == 0 && \
- (info)->contents == 0 && \
- (info)->read_exec_only == 1 && \
- (info)->seg_32bit == 0 && \
- (info)->limit_in_pages == 0 && \
- (info)->seg_not_present == 1 && \
- (info)->useable == 0 )
-
-static inline void clear_LDT(void)
-{
- set_ldt(NULL, 0);
-}
-
-/*
- * load one particular LDT into the current CPU
- */
-static inline void load_LDT_nolock(mm_context_t *pc)
-{
- set_ldt(pc->ldt, pc->size);
-}
-
-static inline void load_LDT(mm_context_t *pc)
-{
- preempt_disable();
- load_LDT_nolock(pc);
- preempt_enable();
-}
-
static inline unsigned long get_desc_base(unsigned long *desc)
{
unsigned long base;
@@ -210,30 +176,6 @@ static inline unsigned long get_desc_base(unsigned long *desc)
(desc[1] & 0xff000000);
return base;
}
-
-#else /* __ASSEMBLY__ */
-
-/*
- * GET_DESC_BASE reads the descriptor base of the specified segment.
- *
- * Args:
- * idx - descriptor index
- * gdt - GDT pointer
- * base - 32bit register to which the base will be written
- * lo_w - lo word of the "base" register
- * lo_b - lo byte of the "base" register
- * hi_b - hi byte of the low word of the "base" register
- *
- * Example:
- * GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah)
- * Will read the base address of GDT_ENTRY_ESPFIX_SS and put it into %eax.
- */
-#define GET_DESC_BASE(idx, gdt, base, lo_w, lo_b, hi_b) \
- movb idx*8+4(gdt), lo_b; \
- movb idx*8+7(gdt), hi_b; \
- shll $16, base; \
- movw idx*8+2(gdt), lo_w;
-
#endif /* !__ASSEMBLY__ */
#endif