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[MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.

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The struct mips_fpu_soft_struct and mips_fpu_hard_struct are
completely same now and the kernel fpu emulator assumes that.  This
patch unifies them to mips_fpu_struct and get rid of mips_fpu_union.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto
2006-05-16 01:26:03 +09:00
committed by Ralf Baechle
parent 5deee2dbf4
commit eae89076e6
12 changed files with 76 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/mips/math-emu/cp1emu.c
View File

@ -60,15 +60,15 @@
/* Function which emulates a floating point instruction. */
static int fpu_emu(struct pt_regs *, struct mips_fpu_soft_struct *,
static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
mips_instruction);
#if __mips >= 4 && __mips != 32
static int fpux_emu(struct pt_regs *,
struct mips_fpu_soft_struct *, mips_instruction);
struct mips_fpu_struct *, mips_instruction);
#endif
/* Further private data for which no space exists in mips_fpu_soft_struct */
/* Further private data for which no space exists in mips_fpu_struct */
struct mips_fpu_emulator_stats fpuemustats;
@ -203,7 +203,7 @@ static int isBranchInstr(mips_instruction * i)
* Two instructions if the instruction is in a branch delay slot.
*/
static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx)
static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
{
mips_instruction ir;
void * emulpc, *contpc;
@ -595,7 +595,7 @@ DEF3OP(msub, dp, ieee754dp_mul, ieee754dp_sub,);
DEF3OP(nmadd, dp, ieee754dp_mul, ieee754dp_add, ieee754dp_neg);
DEF3OP(nmsub, dp, ieee754dp_mul, ieee754dp_sub, ieee754dp_neg);
static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx,
static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
mips_instruction ir)
{
unsigned rcsr = 0; /* resulting csr */
@ -759,7 +759,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx,
/*
* Emulate a single COP1 arithmetic instruction.
*/
static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx,
static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
mips_instruction ir)
{
int rfmt; /* resulting format */
@ -1233,8 +1233,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx,
return 0;
}
int fpu_emulator_cop1Handler(struct pt_regs *xcp,
struct mips_fpu_soft_struct *ctx)
int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
{
unsigned long oldepc, prevepc;
mips_instruction insn;

2
arch/mips/math-emu/ieee754.h
View File

@ -329,7 +329,7 @@ struct _ieee754_csr {
unsigned pad0:7;
#endif
};
#define ieee754_csr (*(struct _ieee754_csr *)(&current->thread.fpu.soft.fcr31))
#define ieee754_csr (*(struct _ieee754_csr *)(&current->thread.fpu.fcr31))
static inline unsigned ieee754_getrm(void)
{

24
arch/mips/math-emu/kernel_linkage.c
View File

@ -39,9 +39,9 @@ void fpu_emulator_init_fpu(void)
printk("Algorithmics/MIPS FPU Emulator v1.5\n");
}
current->thread.fpu.soft.fcr31 = 0;
current->thread.fpu.fcr31 = 0;
for (i = 0; i < 32; i++) {
current->thread.fpu.soft.fpr[i] = SIGNALLING_NAN;
current->thread.fpu.fpr[i] = SIGNALLING_NAN;
}
}
@ -59,10 +59,9 @@ int fpu_emulator_save_context(struct sigcontext *sc)
for (i = 0; i < 32; i++) {
err |=
__put_user(current->thread.fpu.soft.fpr[i],
&sc->sc_fpregs[i]);
__put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
}
err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
return err;
}
@ -74,10 +73,9 @@ int fpu_emulator_restore_context(struct sigcontext *sc)
for (i = 0; i < 32; i++) {
err |=
__get_user(current->thread.fpu.soft.fpr[i],
&sc->sc_fpregs[i]);
__get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
}
err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
return err;
}
@ -94,10 +92,9 @@ int fpu_emulator_save_context32(struct sigcontext32 *sc)
for (i = 0; i < 32; i+=2) {
err |=
__put_user(current->thread.fpu.soft.fpr[i],
&sc->sc_fpregs[i]);
__put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
}
err |= __put_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
return err;
}
@ -109,10 +106,9 @@ int fpu_emulator_restore_context32(struct sigcontext32 *sc)
for (i = 0; i < 32; i+=2) {
err |=
__get_user(current->thread.fpu.soft.fpr[i],
&sc->sc_fpregs[i]);
__get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
}
err |= __get_user(current->thread.fpu.soft.fcr31, &sc->sc_fpc_csr);
err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
return err;
}