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authorTejun Heo <tj@kernel.org>2009-02-09 16:17:39 +0300
committerIngo Molnar <mingo@elte.hu>2009-02-09 16:56:39 +0300
commitae6af41f5a4841f06eb92bc86ad020ad44ae2a30 (patch)
tree767d325dba40e954b277fd23db5842d6090ac540 /arch/x86/math-emu/get_address.c
parent914c3d630b29b07d04908eab1b246812dadd5bd6 (diff)
downloadlinux-ae6af41f5a4841f06eb92bc86ad020ad44ae2a30.tar.xz
x86: math_emu info cleanup
Impact: cleanup * Come on, struct info? s/struct info/struct math_emu_info/ * Use struct pt_regs and kernel_vm86_regs instead of defining its own register frame structure. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/math-emu/get_address.c')
-rw-r--r--arch/x86/math-emu/get_address.c63
1 files changed, 30 insertions, 33 deletions
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index d701e2b39e44..62daa7fcc44c 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -29,42 +29,39 @@
#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 math_emu_info, regs.ax),
+ offsetof(struct math_emu_info, regs.cx),
+ offsetof(struct math_emu_info, regs.dx),
+ offsetof(struct math_emu_info, regs.bx),
+ offsetof(struct math_emu_info, regs.sp),
+ offsetof(struct math_emu_info, regs.bp),
+ offsetof(struct math_emu_info, regs.si),
+ offsetof(struct math_emu_info, regs.di)
};
#define REG_(x) (*(long *)(reg_offset[(x)]+(u_char *) FPU_info))
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 math_emu_info, regs.cs),
+ offsetof(struct math_emu_info, vm86.ds),
+ offsetof(struct math_emu_info, vm86.es),
+ offsetof(struct math_emu_info, vm86.fs),
+ offsetof(struct math_emu_info, vm86.gs),
+ offsetof(struct math_emu_info, regs.ss),
+ offsetof(struct math_emu_info, vm86.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
-
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 math_emu_info, regs.cs),
+ offsetof(struct math_emu_info, regs.ds),
+ offsetof(struct math_emu_info, regs.es),
+ offsetof(struct math_emu_info, regs.fs),
+ offsetof(struct math_emu_info, regs.ds), /* dummy, not saved on stack */
+ offsetof(struct math_emu_info, regs.ss),
+ offsetof(struct math_emu_info, regs.ds)
};
#define PM_REG_(x) (*(unsigned short *) \
@@ -349,34 +346,34 @@ 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;
}