Merge branches 'tracing/doc', 'tracing/ftrace', 'tracing/printk' and 'linus' into...

[linux-2.6-omap-h63xx.git] / arch / x86 / math-emu / get_address.c

diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index d701e2b39e4438aacb8fc22ff000e79083f3bcec..6ef5e99380f92134ba86a6a693b5ac6d3434e6d4 100644 (file)
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -29,46 +29,43 @@
 #define FPU_WRITE_BIT 0x10
 
 static int reg_offset[] = {
-       offsetof(struct info, ___eax),
-       offsetof(struct info, ___ecx),
-       offsetof(struct info, ___edx),
-       offsetof(struct info, ___ebx),
-       offsetof(struct info, ___esp),
-       offsetof(struct info, ___ebp),
-       offsetof(struct info, ___esi),
-       offsetof(struct info, ___edi)
+       offsetof(struct pt_regs, ax),
+       offsetof(struct pt_regs, cx),
+       offsetof(struct pt_regs, dx),
+       offsetof(struct pt_regs, bx),
+       offsetof(struct pt_regs, sp),
+       offsetof(struct pt_regs, bp),
+       offsetof(struct pt_regs, si),
+       offsetof(struct pt_regs, di)
 };
 
-#define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
+#define REG_(x) (*(long *)(reg_offset[(x)] + (u_char *)FPU_info->regs))
 
 static int reg_offset_vm86[] = {
-       offsetof(struct info, ___cs),
-       offsetof(struct info, ___vm86_ds),
-       offsetof(struct info, ___vm86_es),
-       offsetof(struct info, ___vm86_fs),
-       offsetof(struct info, ___vm86_gs),
-       offsetof(struct info, ___ss),
-       offsetof(struct info, ___vm86_ds)
+       offsetof(struct pt_regs, cs),
+       offsetof(struct kernel_vm86_regs, ds),
+       offsetof(struct kernel_vm86_regs, es),
+       offsetof(struct kernel_vm86_regs, fs),
+       offsetof(struct kernel_vm86_regs, gs),
+       offsetof(struct pt_regs, ss),
+       offsetof(struct kernel_vm86_regs, ds)
 };
 
 #define VM86_REG_(x) (*(unsigned short *) \
-                     (reg_offset_vm86[((unsigned)x)]+(u_char *) FPU_info))
-
-/* This dummy, gs is not saved on the stack. */
-#define ___GS ___ds
+               (reg_offset_vm86[((unsigned)x)] + (u_char *)FPU_info->regs))
 
 static int reg_offset_pm[] = {
-       offsetof(struct info, ___cs),
-       offsetof(struct info, ___ds),
-       offsetof(struct info, ___es),
-       offsetof(struct info, ___fs),
-       offsetof(struct info, ___GS),
-       offsetof(struct info, ___ss),
-       offsetof(struct info, ___ds)
+       offsetof(struct pt_regs, cs),
+       offsetof(struct pt_regs, ds),
+       offsetof(struct pt_regs, es),
+       offsetof(struct pt_regs, fs),
+       offsetof(struct pt_regs, ds),   /* dummy, not saved on stack */
+       offsetof(struct pt_regs, ss),
+       offsetof(struct pt_regs, ds)
 };
 
 #define PM_REG_(x) (*(unsigned short *) \
-                     (reg_offset_pm[((unsigned)x)]+(u_char *) FPU_info))
+               (reg_offset_pm[((unsigned)x)] + (u_char *)FPU_info->regs))
 
 /* Decode the SIB byte. This function assumes mod != 0 */
 static int sib(int mod, unsigned long *fpu_eip)
@@ -153,11 +150,9 @@ static long pm_address(u_char FPU_modrm, u_char segment,
 #endif /* PARANOID */
 
        switch (segment) {
-               /* gs isn't used by the kernel, so it still has its
-                  user-space value. */
        case PREFIX_GS_ - 1:
-               /* N.B. - movl %seg, mem is a 2 byte write regardless of prefix */
-               savesegment(gs, addr->selector);
+               /* user gs handling can be lazy, use special accessors */
+               addr->selector = get_user_gs(FPU_info->regs);
                break;
        default:
                addr->selector = PM_REG_(segment);
@@ -349,34 +344,34 @@ void __user *FPU_get_address_16(u_char FPU_modrm, unsigned long *fpu_eip,
        }
        switch (rm) {
        case 0:
-               address += FPU_info->___ebx + FPU_info->___esi;
+               address += FPU_info->regs->bx + FPU_info->regs->si;
                break;
        case 1:
-               address += FPU_info->___ebx + FPU_info->___edi;
+               address += FPU_info->regs->bx + FPU_info->regs->di;
                break;
        case 2:
-               address += FPU_info->___ebp + FPU_info->___esi;
+               address += FPU_info->regs->bp + FPU_info->regs->si;
                if (addr_modes.override.segment == PREFIX_DEFAULT)
                        addr_modes.override.segment = PREFIX_SS_;
                break;
        case 3:
-               address += FPU_info->___ebp + FPU_info->___edi;
+               address += FPU_info->regs->bp + FPU_info->regs->di;
                if (addr_modes.override.segment == PREFIX_DEFAULT)
                        addr_modes.override.segment = PREFIX_SS_;
                break;
        case 4:
-               address += FPU_info->___esi;
+               address += FPU_info->regs->si;
                break;
        case 5:
-               address += FPU_info->___edi;
+               address += FPU_info->regs->di;
                break;
        case 6:
-               address += FPU_info->___ebp;
+               address += FPU_info->regs->bp;
                if (addr_modes.override.segment == PREFIX_DEFAULT)
                        addr_modes.override.segment = PREFIX_SS_;
                break;
        case 7:
-               address += FPU_info->___ebx;
+               address += FPU_info->regs->bx;
                break;
        }