diff options
Diffstat (limited to 'arch/sparc/kernel/unaligned_64.c')
-rw-r--r-- | arch/sparc/kernel/unaligned_64.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c index 379209982a07..378ca82b9ccc 100644 --- a/arch/sparc/kernel/unaligned_64.c +++ b/arch/sparc/kernel/unaligned_64.c | |||
@@ -20,10 +20,9 @@ | |||
20 | #include <asm/uaccess.h> | 20 | #include <asm/uaccess.h> |
21 | #include <linux/smp.h> | 21 | #include <linux/smp.h> |
22 | #include <linux/bitops.h> | 22 | #include <linux/bitops.h> |
23 | #include <linux/perf_event.h> | ||
23 | #include <asm/fpumacro.h> | 24 | #include <asm/fpumacro.h> |
24 | 25 | ||
25 | /* #define DEBUG_MNA */ | ||
26 | |||
27 | enum direction { | 26 | enum direction { |
28 | load, /* ld, ldd, ldh, ldsh */ | 27 | load, /* ld, ldd, ldh, ldsh */ |
29 | store, /* st, std, sth, stsh */ | 28 | store, /* st, std, sth, stsh */ |
@@ -33,12 +32,6 @@ enum direction { | |||
33 | invalid, | 32 | invalid, |
34 | }; | 33 | }; |
35 | 34 | ||
36 | #ifdef DEBUG_MNA | ||
37 | static char *dirstrings[] = { | ||
38 | "load", "store", "both", "fpload", "fpstore", "invalid" | ||
39 | }; | ||
40 | #endif | ||
41 | |||
42 | static inline enum direction decode_direction(unsigned int insn) | 35 | static inline enum direction decode_direction(unsigned int insn) |
43 | { | 36 | { |
44 | unsigned long tmp = (insn >> 21) & 1; | 37 | unsigned long tmp = (insn >> 21) & 1; |
@@ -327,12 +320,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) | |||
327 | 320 | ||
328 | addr = compute_effective_address(regs, insn, | 321 | addr = compute_effective_address(regs, insn, |
329 | ((insn >> 25) & 0x1f)); | 322 | ((insn >> 25) & 0x1f)); |
330 | #ifdef DEBUG_MNA | 323 | perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, addr); |
331 | printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] " | ||
332 | "retpc[%016lx]\n", | ||
333 | regs->tpc, dirstrings[dir], addr, size, | ||
334 | regs->u_regs[UREG_RETPC]); | ||
335 | #endif | ||
336 | switch (asi) { | 324 | switch (asi) { |
337 | case ASI_NL: | 325 | case ASI_NL: |
338 | case ASI_AIUPL: | 326 | case ASI_AIUPL: |
@@ -399,6 +387,7 @@ int handle_popc(u32 insn, struct pt_regs *regs) | |||
399 | int ret, i, rd = ((insn >> 25) & 0x1f); | 387 | int ret, i, rd = ((insn >> 25) & 0x1f); |
400 | int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; | 388 | int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; |
401 | 389 | ||
390 | perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); | ||
402 | if (insn & 0x2000) { | 391 | if (insn & 0x2000) { |
403 | maybe_flush_windows(0, 0, rd, from_kernel); | 392 | maybe_flush_windows(0, 0, rd, from_kernel); |
404 | value = sign_extend_imm13(insn); | 393 | value = sign_extend_imm13(insn); |
@@ -445,6 +434,8 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs) | |||
445 | int asi = decode_asi(insn, regs); | 434 | int asi = decode_asi(insn, regs); |
446 | int flag = (freg < 32) ? FPRS_DL : FPRS_DU; | 435 | int flag = (freg < 32) ? FPRS_DL : FPRS_DU; |
447 | 436 | ||
437 | perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); | ||
438 | |||
448 | save_and_clear_fpu(); | 439 | save_and_clear_fpu(); |
449 | current_thread_info()->xfsr[0] &= ~0x1c000; | 440 | current_thread_info()->xfsr[0] &= ~0x1c000; |
450 | if (freg & 3) { | 441 | if (freg & 3) { |
@@ -566,6 +557,8 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs) | |||
566 | int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; | 557 | int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; |
567 | unsigned long *reg; | 558 | unsigned long *reg; |
568 | 559 | ||
560 | perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0); | ||
561 | |||
569 | maybe_flush_windows(0, 0, rd, from_kernel); | 562 | maybe_flush_windows(0, 0, rd, from_kernel); |
570 | reg = fetch_reg_addr(rd, regs); | 563 | reg = fetch_reg_addr(rd, regs); |
571 | if (from_kernel || rd < 16) { | 564 | if (from_kernel || rd < 16) { |
@@ -596,6 +589,7 @@ void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr | |||
596 | 589 | ||
597 | if (tstate & TSTATE_PRIV) | 590 | if (tstate & TSTATE_PRIV) |
598 | die_if_kernel("lddfmna from kernel", regs); | 591 | die_if_kernel("lddfmna from kernel", regs); |
592 | perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar); | ||
599 | if (test_thread_flag(TIF_32BIT)) | 593 | if (test_thread_flag(TIF_32BIT)) |
600 | pc = (u32)pc; | 594 | pc = (u32)pc; |
601 | if (get_user(insn, (u32 __user *) pc) != -EFAULT) { | 595 | if (get_user(insn, (u32 __user *) pc) != -EFAULT) { |
@@ -657,6 +651,7 @@ void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr | |||
657 | 651 | ||
658 | if (tstate & TSTATE_PRIV) | 652 | if (tstate & TSTATE_PRIV) |
659 | die_if_kernel("stdfmna from kernel", regs); | 653 | die_if_kernel("stdfmna from kernel", regs); |
654 | perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar); | ||
660 | if (test_thread_flag(TIF_32BIT)) | 655 | if (test_thread_flag(TIF_32BIT)) |
661 | pc = (u32)pc; | 656 | pc = (u32)pc; |
662 | if (get_user(insn, (u32 __user *) pc) != -EFAULT) { | 657 | if (get_user(insn, (u32 __user *) pc) != -EFAULT) { |