[MIPS] math-emu minor cleanup
Declaring emulpc and contpc as "unsigned long" can get rid of some casts. This also get rid of some sparse warnings. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -205,7 +205,7 @@ static int isBranchInstr(mips_instruction * i)
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static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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{
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{
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mips_instruction ir;
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mips_instruction ir;
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void * emulpc, *contpc;
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unsigned long emulpc, contpc;
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unsigned int cond;
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unsigned int cond;
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if (get_user(ir, (mips_instruction __user *) xcp->cp0_epc)) {
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if (get_user(ir, (mips_instruction __user *) xcp->cp0_epc)) {
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@ -230,7 +230,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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* Linux MIPS branch emulator operates on context, updating the
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* Linux MIPS branch emulator operates on context, updating the
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* cp0_epc.
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* cp0_epc.
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*/
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*/
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emulpc = (void *) (xcp->cp0_epc + 4); /* Snapshot emulation target */
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emulpc = xcp->cp0_epc + 4; /* Snapshot emulation target */
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if (__compute_return_epc(xcp)) {
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if (__compute_return_epc(xcp)) {
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#ifdef CP1DBG
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#ifdef CP1DBG
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@ -244,12 +244,12 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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return SIGBUS;
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return SIGBUS;
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}
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}
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/* __compute_return_epc() will have updated cp0_epc */
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/* __compute_return_epc() will have updated cp0_epc */
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contpc = (void *) xcp->cp0_epc;
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contpc = xcp->cp0_epc;
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/* In order not to confuse ptrace() et al, tweak context */
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/* In order not to confuse ptrace() et al, tweak context */
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xcp->cp0_epc = (unsigned long) emulpc - 4;
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xcp->cp0_epc = emulpc - 4;
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} else {
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} else {
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emulpc = (void *) xcp->cp0_epc;
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emulpc = xcp->cp0_epc;
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contpc = (void *) (xcp->cp0_epc + 4);
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contpc = xcp->cp0_epc + 4;
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}
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}
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emul:
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emul:
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@ -427,8 +427,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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* instruction
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* instruction
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*/
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*/
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xcp->cp0_epc += 4;
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xcp->cp0_epc += 4;
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contpc = (void *)
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contpc = (xcp->cp0_epc +
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(xcp->cp0_epc +
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(MIPSInst_SIMM(ir) << 2));
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(MIPSInst_SIMM(ir) << 2));
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if (get_user(ir,
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if (get_user(ir,
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@ -462,7 +461,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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* Single step the non-cp1
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* Single step the non-cp1
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* instruction in the dslot
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* instruction in the dslot
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*/
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*/
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return mips_dsemul(xcp, ir, (unsigned long) contpc);
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return mips_dsemul(xcp, ir, contpc);
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}
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}
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else {
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else {
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/* branch not taken */
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/* branch not taken */
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@ -521,7 +520,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx)
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}
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}
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/* we did it !! */
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/* we did it !! */
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xcp->cp0_epc = (unsigned long) contpc;
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xcp->cp0_epc = contpc;
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xcp->cp0_cause &= ~CAUSEF_BD;
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xcp->cp0_cause &= ~CAUSEF_BD;
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return 0;
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return 0;
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