diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2005-02-28 12:55:57 -0500 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2005-10-29 14:30:46 -0400 |
commit | 333d1f6794b341df11f286f5dca123c6dc64a770 (patch) | |
tree | 65218399e74b00d17e1b86b2086d781866028d85 /arch/mips/math-emu/cp1emu.c | |
parent | 0bd5d2e9ec8cc04a0225c590d35dd097e6b3a3f6 (diff) |
Gross macro abuse. Get rid of gpreg_t, vaddr_t, REG_TO_VA and
VA_TO_REG. Who ever wrote this apparently did enjoy the C Puzzle Book.
ISBN 0201604612, a little old but still fun reading for the next
blackout ;)
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/math-emu/cp1emu.c')
-rw-r--r-- | arch/mips/math-emu/cp1emu.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 99c550632d44..c70f25f5889e 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c | |||
@@ -196,7 +196,7 @@ static int isBranchInstr(mips_instruction * i) | |||
196 | static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | 196 | static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) |
197 | { | 197 | { |
198 | mips_instruction ir; | 198 | mips_instruction ir; |
199 | vaddr_t emulpc, contpc; | 199 | void * emulpc, *contpc; |
200 | unsigned int cond; | 200 | unsigned int cond; |
201 | 201 | ||
202 | if (get_user(ir, (mips_instruction *) xcp->cp0_epc)) { | 202 | if (get_user(ir, (mips_instruction *) xcp->cp0_epc)) { |
@@ -221,12 +221,12 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
221 | * Linux MIPS branch emulator operates on context, updating the | 221 | * Linux MIPS branch emulator operates on context, updating the |
222 | * cp0_epc. | 222 | * cp0_epc. |
223 | */ | 223 | */ |
224 | emulpc = REG_TO_VA(xcp->cp0_epc + 4); /* Snapshot emulation target */ | 224 | emulpc = (void *) (xcp->cp0_epc + 4); /* Snapshot emulation target */ |
225 | 225 | ||
226 | if (__compute_return_epc(xcp)) { | 226 | if (__compute_return_epc(xcp)) { |
227 | #ifdef CP1DBG | 227 | #ifdef CP1DBG |
228 | printk("failed to emulate branch at %p\n", | 228 | printk("failed to emulate branch at %p\n", |
229 | REG_TO_VA(xcp->cp0_epc)); | 229 | (void *) (xcp->cp0_epc)); |
230 | #endif | 230 | #endif |
231 | return SIGILL; | 231 | return SIGILL; |
232 | } | 232 | } |
@@ -235,13 +235,12 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
235 | return SIGBUS; | 235 | return SIGBUS; |
236 | } | 236 | } |
237 | /* __compute_return_epc() will have updated cp0_epc */ | 237 | /* __compute_return_epc() will have updated cp0_epc */ |
238 | contpc = REG_TO_VA xcp->cp0_epc; | 238 | contpc = (void *) xcp->cp0_epc; |
239 | /* In order not to confuse ptrace() et al, tweak context */ | 239 | /* In order not to confuse ptrace() et al, tweak context */ |
240 | xcp->cp0_epc = VA_TO_REG emulpc - 4; | 240 | xcp->cp0_epc = (unsigned long) emulpc - 4; |
241 | } | 241 | } else { |
242 | else { | 242 | emulpc = (void *) xcp->cp0_epc; |
243 | emulpc = REG_TO_VA xcp->cp0_epc; | 243 | contpc = (void *) (xcp->cp0_epc + 4); |
244 | contpc = REG_TO_VA(xcp->cp0_epc + 4); | ||
245 | } | 244 | } |
246 | 245 | ||
247 | emul: | 246 | emul: |
@@ -249,7 +248,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
249 | switch (MIPSInst_OPCODE(ir)) { | 248 | switch (MIPSInst_OPCODE(ir)) { |
250 | #ifndef SINGLE_ONLY_FPU | 249 | #ifndef SINGLE_ONLY_FPU |
251 | case ldc1_op:{ | 250 | case ldc1_op:{ |
252 | u64 *va = REG_TO_VA(xcp->regs[MIPSInst_RS(ir)] + | 251 | u64 *va = (void *) (xcp->regs[MIPSInst_RS(ir)] + |
253 | MIPSInst_SIMM(ir)); | 252 | MIPSInst_SIMM(ir)); |
254 | u64 val; | 253 | u64 val; |
255 | 254 | ||
@@ -263,7 +262,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
263 | } | 262 | } |
264 | 263 | ||
265 | case sdc1_op:{ | 264 | case sdc1_op:{ |
266 | u64 *va = REG_TO_VA(xcp->regs[MIPSInst_RS(ir)] + | 265 | u64 *va = (void *) (xcp->regs[MIPSInst_RS(ir)] + |
267 | MIPSInst_SIMM(ir)); | 266 | MIPSInst_SIMM(ir)); |
268 | u64 val; | 267 | u64 val; |
269 | 268 | ||
@@ -278,7 +277,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
278 | #endif | 277 | #endif |
279 | 278 | ||
280 | case lwc1_op:{ | 279 | case lwc1_op:{ |
281 | u32 *va = REG_TO_VA(xcp->regs[MIPSInst_RS(ir)] + | 280 | u32 *va = (void *) (xcp->regs[MIPSInst_RS(ir)] + |
282 | MIPSInst_SIMM(ir)); | 281 | MIPSInst_SIMM(ir)); |
283 | u32 val; | 282 | u32 val; |
284 | 283 | ||
@@ -298,7 +297,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
298 | } | 297 | } |
299 | 298 | ||
300 | case swc1_op:{ | 299 | case swc1_op:{ |
301 | u32 *va = REG_TO_VA(xcp->regs[MIPSInst_RS(ir)] + | 300 | u32 *va = (void *) (xcp->regs[MIPSInst_RS(ir)] + |
302 | MIPSInst_SIMM(ir)); | 301 | MIPSInst_SIMM(ir)); |
303 | u32 val; | 302 | u32 val; |
304 | 303 | ||
@@ -371,7 +370,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
371 | value = ctx->fcr31; | 370 | value = ctx->fcr31; |
372 | #ifdef CSRTRACE | 371 | #ifdef CSRTRACE |
373 | printk("%p gpr[%d]<-csr=%08x\n", | 372 | printk("%p gpr[%d]<-csr=%08x\n", |
374 | REG_TO_VA(xcp->cp0_epc), | 373 | (void *) (xcp->cp0_epc), |
375 | MIPSInst_RT(ir), value); | 374 | MIPSInst_RT(ir), value); |
376 | #endif | 375 | #endif |
377 | } | 376 | } |
@@ -398,7 +397,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
398 | if (MIPSInst_RD(ir) == FPCREG_CSR) { | 397 | if (MIPSInst_RD(ir) == FPCREG_CSR) { |
399 | #ifdef CSRTRACE | 398 | #ifdef CSRTRACE |
400 | printk("%p gpr[%d]->csr=%08x\n", | 399 | printk("%p gpr[%d]->csr=%08x\n", |
401 | REG_TO_VA(xcp->cp0_epc), | 400 | (void *) (xcp->cp0_epc), |
402 | MIPSInst_RT(ir), value); | 401 | MIPSInst_RT(ir), value); |
403 | #endif | 402 | #endif |
404 | ctx->fcr31 = value; | 403 | ctx->fcr31 = value; |
@@ -445,12 +444,12 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
445 | * instruction | 444 | * instruction |
446 | */ | 445 | */ |
447 | xcp->cp0_epc += 4; | 446 | xcp->cp0_epc += 4; |
448 | contpc = REG_TO_VA | 447 | contpc = (void *) |
449 | (xcp->cp0_epc + | 448 | (xcp->cp0_epc + |
450 | (MIPSInst_SIMM(ir) << 2)); | 449 | (MIPSInst_SIMM(ir) << 2)); |
451 | 450 | ||
452 | if (get_user(ir, (mips_instruction *) | 451 | if (get_user(ir, (mips_instruction *) |
453 | REG_TO_VA xcp->cp0_epc)) { | 452 | (void *) xcp->cp0_epc)) { |
454 | fpuemuprivate.stats.errors++; | 453 | fpuemuprivate.stats.errors++; |
455 | return SIGBUS; | 454 | return SIGBUS; |
456 | } | 455 | } |
@@ -480,7 +479,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
480 | * Single step the non-cp1 | 479 | * Single step the non-cp1 |
481 | * instruction in the dslot | 480 | * instruction in the dslot |
482 | */ | 481 | */ |
483 | return mips_dsemul(xcp, ir, VA_TO_REG contpc); | 482 | return mips_dsemul(xcp, ir, (unsigned long) contpc); |
484 | } | 483 | } |
485 | else { | 484 | else { |
486 | /* branch not taken */ | 485 | /* branch not taken */ |
@@ -539,8 +538,9 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx) | |||
539 | } | 538 | } |
540 | 539 | ||
541 | /* we did it !! */ | 540 | /* we did it !! */ |
542 | xcp->cp0_epc = VA_TO_REG(contpc); | 541 | xcp->cp0_epc = (unsigned long) contpc; |
543 | xcp->cp0_cause &= ~CAUSEF_BD; | 542 | xcp->cp0_cause &= ~CAUSEF_BD; |
543 | |||
544 | return 0; | 544 | return 0; |
545 | } | 545 | } |
546 | 546 | ||
@@ -628,7 +628,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx, | |||
628 | 628 | ||
629 | switch (MIPSInst_FUNC(ir)) { | 629 | switch (MIPSInst_FUNC(ir)) { |
630 | case lwxc1_op: | 630 | case lwxc1_op: |
631 | va = REG_TO_VA(xcp->regs[MIPSInst_FR(ir)] + | 631 | va = (void *) (xcp->regs[MIPSInst_FR(ir)] + |
632 | xcp->regs[MIPSInst_FT(ir)]); | 632 | xcp->regs[MIPSInst_FT(ir)]); |
633 | 633 | ||
634 | fpuemuprivate.stats.loads++; | 634 | fpuemuprivate.stats.loads++; |
@@ -648,7 +648,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx, | |||
648 | break; | 648 | break; |
649 | 649 | ||
650 | case swxc1_op: | 650 | case swxc1_op: |
651 | va = REG_TO_VA(xcp->regs[MIPSInst_FR(ir)] + | 651 | va = (void *) (xcp->regs[MIPSInst_FR(ir)] + |
652 | xcp->regs[MIPSInst_FT(ir)]); | 652 | xcp->regs[MIPSInst_FT(ir)]); |
653 | 653 | ||
654 | fpuemuprivate.stats.stores++; | 654 | fpuemuprivate.stats.stores++; |
@@ -724,7 +724,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx, | |||
724 | 724 | ||
725 | switch (MIPSInst_FUNC(ir)) { | 725 | switch (MIPSInst_FUNC(ir)) { |
726 | case ldxc1_op: | 726 | case ldxc1_op: |
727 | va = REG_TO_VA(xcp->regs[MIPSInst_FR(ir)] + | 727 | va = (void *) (xcp->regs[MIPSInst_FR(ir)] + |
728 | xcp->regs[MIPSInst_FT(ir)]); | 728 | xcp->regs[MIPSInst_FT(ir)]); |
729 | 729 | ||
730 | fpuemuprivate.stats.loads++; | 730 | fpuemuprivate.stats.loads++; |
@@ -736,7 +736,7 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx, | |||
736 | break; | 736 | break; |
737 | 737 | ||
738 | case sdxc1_op: | 738 | case sdxc1_op: |
739 | va = REG_TO_VA(xcp->regs[MIPSInst_FR(ir)] + | 739 | va = (void *) (xcp->regs[MIPSInst_FR(ir)] + |
740 | xcp->regs[MIPSInst_FT(ir)]); | 740 | xcp->regs[MIPSInst_FT(ir)]); |
741 | 741 | ||
742 | fpuemuprivate.stats.stores++; | 742 | fpuemuprivate.stats.stores++; |
@@ -1282,7 +1282,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_soft_struct *ctx, | |||
1282 | int fpu_emulator_cop1Handler(int xcptno, struct pt_regs *xcp, | 1282 | int fpu_emulator_cop1Handler(int xcptno, struct pt_regs *xcp, |
1283 | struct mips_fpu_soft_struct *ctx) | 1283 | struct mips_fpu_soft_struct *ctx) |
1284 | { | 1284 | { |
1285 | gpreg_t oldepc, prevepc; | 1285 | unsigned long oldepc, prevepc; |
1286 | mips_instruction insn; | 1286 | mips_instruction insn; |
1287 | int sig = 0; | 1287 | int sig = 0; |
1288 | 1288 | ||