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nios2: remove unused statistic counters

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Removed some statistic counters to improve the performance of the handler.

Signed-off-by: Bernd Weiberg <bernd.weiberg@siemens.com>
Signed-off-by: Ley Foon Tan <lftan@altera.com>
This commit is contained in:
Bernd Weiberg 2015-09-04 16:59:45 +08:00 committed by Ley Foon Tan
parent db5a7e5546
commit 3fb39c482c
1 changed files with 0 additions and 18 deletions
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18
arch/nios2/kernel/misaligned.c
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@ -32,8 +32,6 @@
#define INST_STW 0x15
#define INST_LDW 0x17
static unsigned long ma_user, ma_kern, ma_skipped, ma_half, ma_word;
static unsigned int ma_usermode;
#define UM_WARN 0x01
#define UM_FIXUP 0x02
@ -53,7 +51,6 @@ static int reg_offsets[32];
static inline u32 get_reg_val(struct pt_regs *fp, int reg)
{
u8 *p = ((u8 *)fp) + reg_offsets[reg];
return *(u32 *)p;
}
@ -78,7 +75,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
fp->ea -= 4;
if (fixup_exception(fp)) {
ma_skipped++;
return;
}
@ -103,18 +99,11 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
fault |= __get_user(d1, (u8 *)(addr+1));
val = (d1 << 8) | d0;
put_reg_val(fp, b, val);
ma_half++;
break;
case INST_STH:
val = get_reg_val(fp, b);
d1 = val >> 8;
d0 = val >> 0;
pr_debug("sth: ra=%d (%08x) rb=%d (%08x), imm16 %04x addr %08x val %08x\n",
a, get_reg_val(fp, a),
b, get_reg_val(fp, b),
imm16, addr, val);
if (in_kernel) {
*(u8 *)(addr+0) = d0;
*(u8 *)(addr+1) = d1;
@ -122,14 +111,12 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
fault |= __put_user(d0, (u8 *)(addr+0));
fault |= __put_user(d1, (u8 *)(addr+1));
}
ma_half++;
break;
case INST_LDH:
fault |= __get_user(d0, (u8 *)(addr+0));
fault |= __get_user(d1, (u8 *)(addr+1));
val = (short)((d1 << 8) | d0);
put_reg_val(fp, b, val);
ma_half++;
break;
case INST_STW:
val = get_reg_val(fp, b);
@ -148,7 +135,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
fault |= __put_user(d2, (u8 *)(addr+2));
fault |= __put_user(d3, (u8 *)(addr+3));
}
ma_word++;
break;
case INST_LDW:
fault |= __get_user(d0, (u8 *)(addr+0));
@ -157,7 +143,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
fault |= __get_user(d3, (u8 *)(addr+3));
val = (d3 << 24) | (d2 << 16) | (d1 << 8) | d0;
put_reg_val(fp, b, val);
ma_word++;
break;
}
}
@ -186,7 +171,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
* note exception and skip bad instruction (return)
*/
if (in_kernel) {
ma_kern++;
fp->ea += 4;
if (ma_usermode & KM_WARN) {
@ -200,8 +184,6 @@ asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause)
return;
}
ma_user++;
/*
* user mode -
* possibly warn,