sparc: Add alignment and emulation fault perf events.

[safe/jmp/linux-2.6] / arch / sparc / kernel / unaligned_64.c

diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index 3792099..378ca82 100644 (file)
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -20,10 +20,9 @@
 #include <asm/uaccess.h>
 #include <linux/smp.h>
 #include <linux/bitops.h>
+#include <linux/perf_event.h>
 #include <asm/fpumacro.h>
 
-/* #define DEBUG_MNA */
-
 enum direction {
        load,    /* ld, ldd, ldh, ldsh */
        store,   /* st, std, sth, stsh */
@@ -33,12 +32,6 @@ enum direction {
        invalid,
 };
 
-#ifdef DEBUG_MNA
-static char *dirstrings[] = {
-  "load", "store", "both", "fpload", "fpstore", "invalid"
-};
-#endif
-
 static inline enum direction decode_direction(unsigned int insn)
 {
        unsigned long tmp = (insn >> 21) & 1;
@@ -327,12 +320,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 
                addr = compute_effective_address(regs, insn,
                                                 ((insn >> 25) & 0x1f));
-#ifdef DEBUG_MNA
-               printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] "
-                      "retpc[%016lx]\n",
-                      regs->tpc, dirstrings[dir], addr, size,
-                      regs->u_regs[UREG_RETPC]);
-#endif
+               perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, addr);
                switch (asi) {
                case ASI_NL:
                case ASI_AIUPL:
@@ -399,6 +387,7 @@ int handle_popc(u32 insn, struct pt_regs *regs)
        int ret, i, rd = ((insn >> 25) & 0x1f);
        int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
                                
+       perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0);
        if (insn & 0x2000) {
                maybe_flush_windows(0, 0, rd, from_kernel);
                value = sign_extend_imm13(insn);
@@ -445,6 +434,8 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs)
        int asi = decode_asi(insn, regs);
        int flag = (freg < 32) ? FPRS_DL : FPRS_DU;
 
+       perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0);
+
        save_and_clear_fpu();
        current_thread_info()->xfsr[0] &= ~0x1c000;
        if (freg & 3) {
@@ -566,6 +557,8 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs)
        int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
        unsigned long *reg;
                                
+       perf_sw_event(PERF_COUNT_SW_EMULATION_FAULTS, 1, 0, regs, 0);
+
        maybe_flush_windows(0, 0, rd, from_kernel);
        reg = fetch_reg_addr(rd, regs);
        if (from_kernel || rd < 16) {
@@ -596,6 +589,7 @@ void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr
 
        if (tstate & TSTATE_PRIV)
                die_if_kernel("lddfmna from kernel", regs);
+       perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar);
        if (test_thread_flag(TIF_32BIT))
                pc = (u32)pc;
        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
 
        if (tstate & TSTATE_PRIV)
                die_if_kernel("stdfmna from kernel", regs);
+       perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, 0, regs, sfar);
        if (test_thread_flag(TIF_32BIT))
                pc = (u32)pc;
        if (get_user(insn, (u32 __user *) pc) != -EFAULT) {