Attachment 314216 Details for Bug 458824 – Make oprofile enable all perf counters on intel family 6

[patch] Make oprofile enable all perf counters on intel family 6

linux-2.6-oprofile-intel-family-6.patch (text/plain), 1.33 KB, created by Markus Armbruster on 2008-08-13 15:39:36 UTC

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Creator: Markus Armbruster

Created: 2008-08-13 15:39:36 UTC

Size: 1.33 KB

patch

obsolete

>diff -up linux-2.6.18.noarch/arch/i386/oprofile/op_model_ppro.c~ linux-2.6.18.noarch/arch/i386/oprofile/op_model_ppro.c
>--- linux-2.6.18.noarch/arch/i386/oprofile/op_model_ppro.c~	2008-08-12 13:32:56.000000000 -0400
>+++ linux-2.6.18.noarch/arch/i386/oprofile/op_model_ppro.c	2008-08-12 13:53:16.000000000 -0400
>@@ -93,6 +93,8 @@ static int ppro_check_ctrs(struct pt_reg
> 	int i;
>  
> 	for (i = 0 ; i < NUM_COUNTERS; ++i) {
>+		if (!reset_value[i])
>+			continue;
> 		CTR_READ(low, high, msrs, i);
> 		if (CTR_OVERFLOWED(low)) {
> 			oprofile_add_sample(regs, i);
>@@ -118,18 +120,30 @@ static int ppro_check_ctrs(struct pt_reg
> static void ppro_start(struct op_msrs const * const msrs)
> {
> 	unsigned int low,high;
>-	CTRL_READ(low, high, msrs, 0);
>-	CTRL_SET_ACTIVE(low);
>-	CTRL_WRITE(low, high, msrs, 0);
>+	int i;
>+
>+	for (i = 0; i < NUM_COUNTERS; ++i) {
>+		if (reset_value[i]) {
>+			CTRL_READ(low, high, msrs, i);
>+			CTRL_SET_ACTIVE(low);
>+			CTRL_WRITE(low, high, msrs, i);
>+		}
>+	}
> }
> 
> 
> static void ppro_stop(struct op_msrs const * const msrs)
> {
> 	unsigned int low,high;
>-	CTRL_READ(low, high, msrs, 0);
>-	CTRL_SET_INACTIVE(low);
>-	CTRL_WRITE(low, high, msrs, 0);
>+	int i;
>+
>+	for (i = 0; i < NUM_COUNTERS; ++i) {
>+		if (!reset_value[i])
>+			continue;
>+		CTRL_READ(low, high, msrs, i);
>+		CTRL_SET_INACTIVE(low);
>+		CTRL_WRITE(low, high, msrs, i);
>+	}
> }
> 
>

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Attachments on bug 458824: 314216