Merge branch 'upstream-fixes' of git://lost.foo-projects.org/~ahkok/git/netdev-2...

[pandora-kernel.git] / include / asm-i386 / paravirt.h

diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h
index 0811947..9f06265 100644 (file)
--- a/include/asm-i386/paravirt.h
+++ b/include/asm-i386/paravirt.h
@@ -4,6 +4,7 @@
  * para-virtualization: those hooks are defined here. */
 #include <linux/linkage.h>
 #include <linux/stringify.h>
+#include <asm/page.h>
 
 #ifdef CONFIG_PARAVIRT
 /* These are the most performance critical ops, so we want to be able to patch
@@ -27,6 +28,7 @@
 struct thread_struct;
 struct Xgt_desc_struct;
 struct tss_struct;
+struct mm_struct;
 struct paravirt_ops
 {
        unsigned int kernel_rpl;
@@ -115,11 +117,39 @@ struct paravirt_ops
        void (fastcall *io_delay)(void);
        void (*const_udelay)(unsigned long loops);
 
+#ifdef CONFIG_X86_LOCAL_APIC
+       void (fastcall *apic_write)(unsigned long reg, unsigned long v);
+       void (fastcall *apic_write_atomic)(unsigned long reg, unsigned long v);
+       unsigned long (fastcall *apic_read)(unsigned long reg);
+#endif
+
+       void (fastcall *flush_tlb_user)(void);
+       void (fastcall *flush_tlb_kernel)(void);
+       void (fastcall *flush_tlb_single)(u32 addr);
+
+       void (fastcall *set_pte)(pte_t *ptep, pte_t pteval);
+       void (fastcall *set_pte_at)(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pteval);
+       void (fastcall *set_pmd)(pmd_t *pmdp, pmd_t pmdval);
+       void (fastcall *pte_update)(struct mm_struct *mm, u32 addr, pte_t *ptep);
+       void (fastcall *pte_update_defer)(struct mm_struct *mm, u32 addr, pte_t *ptep);
+#ifdef CONFIG_X86_PAE
+       void (fastcall *set_pte_atomic)(pte_t *ptep, pte_t pteval);
+       void (fastcall *set_pte_present)(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte);
+       void (fastcall *set_pud)(pud_t *pudp, pud_t pudval);
+       void (fastcall *pte_clear)(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+       void (fastcall *pmd_clear)(pmd_t *pmdp);
+#endif
+
        /* These two are jmp to, not actually called. */
        void (fastcall *irq_enable_sysexit)(void);
        void (fastcall *iret)(void);
 };
 
+/* Mark a paravirt probe function. */
+#define paravirt_probe(fn)                                             \
+ static asmlinkage void (*__paravirtprobe_##fn)(void) __attribute_used__ \
+               __attribute__((__section__(".paravirtprobe"))) = fn
+
 extern struct paravirt_ops paravirt_ops;
 
 #define paravirt_enabled() (paravirt_ops.paravirt_enabled)
@@ -265,6 +295,83 @@ static inline void slow_down_io(void) {
 #endif
 }
 
+#ifdef CONFIG_X86_LOCAL_APIC
+/*
+ * Basic functions accessing APICs.
+ */
+static inline void apic_write(unsigned long reg, unsigned long v)
+{
+       paravirt_ops.apic_write(reg,v);
+}
+
+static inline void apic_write_atomic(unsigned long reg, unsigned long v)
+{
+       paravirt_ops.apic_write_atomic(reg,v);
+}
+
+static inline unsigned long apic_read(unsigned long reg)
+{
+       return paravirt_ops.apic_read(reg);
+}
+#endif
+
+
+#define __flush_tlb() paravirt_ops.flush_tlb_user()
+#define __flush_tlb_global() paravirt_ops.flush_tlb_kernel()
+#define __flush_tlb_single(addr) paravirt_ops.flush_tlb_single(addr)
+
+static inline void set_pte(pte_t *ptep, pte_t pteval)
+{
+       paravirt_ops.set_pte(ptep, pteval);
+}
+
+static inline void set_pte_at(struct mm_struct *mm, u32 addr, pte_t *ptep, pte_t pteval)
+{
+       paravirt_ops.set_pte_at(mm, addr, ptep, pteval);
+}
+
+static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
+{
+       paravirt_ops.set_pmd(pmdp, pmdval);
+}
+
+static inline void pte_update(struct mm_struct *mm, u32 addr, pte_t *ptep)
+{
+       paravirt_ops.pte_update(mm, addr, ptep);
+}
+
+static inline void pte_update_defer(struct mm_struct *mm, u32 addr, pte_t *ptep)
+{
+       paravirt_ops.pte_update_defer(mm, addr, ptep);
+}
+
+#ifdef CONFIG_X86_PAE
+static inline void set_pte_atomic(pte_t *ptep, pte_t pteval)
+{
+       paravirt_ops.set_pte_atomic(ptep, pteval);
+}
+
+static inline void set_pte_present(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte)
+{
+       paravirt_ops.set_pte_present(mm, addr, ptep, pte);
+}
+
+static inline void set_pud(pud_t *pudp, pud_t pudval)
+{
+       paravirt_ops.set_pud(pudp, pudval);
+}
+
+static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+       paravirt_ops.pte_clear(mm, addr, ptep);
+}
+
+static inline void pmd_clear(pmd_t *pmdp)
+{
+       paravirt_ops.pmd_clear(pmdp);
+}
+#endif
+
 /* These all sit in the .parainstructions section to tell us what to patch. */
 struct paravirt_patch {
        u8 *instr;              /* original instructions */