Messages in this thread Patch in this message | | | Date | Thu, 12 Feb 2004 22:41:52 +0000 | From | Philippe Elie <> | Subject | [PATCH] oprofile add Pentium Mobile support |
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Hi Andrew, all
apply cleanly to 2.6.3-rc2
From: Will Cohen <wcohen@redhat.com>
Add oprofile support for Pentium Mobile (P6 core). Pentium Mobile needs to unmask LVPTC vector, since it doesn't hurt other P6 core based cpus we do it unconditionally for all these.
This patch require userspace tools >= 0.8 (only in sourceforge cvs currently)
regards, Phil
diff -uprN -X /home/phe/dontdiff-2.6.0 linux-temp/arch/i386/oprofile/nmi_int.c linux-2.5/arch/i386/oprofile/nmi_int.c --- linux-temp/arch/i386/oprofile/nmi_int.c 2004-02-12 22:00:59.000000000 +0000 +++ linux-2.5/arch/i386/oprofile/nmi_int.c 2004-02-12 22:27:31.000000000 +0000 @@ -335,7 +335,9 @@ static int __init ppro_init(void) if (cpu_model > 0xd) return 0; - if (cpu_model > 5) { + if (cpu_model == 9) { + nmi_ops.cpu_type = "i386/p6_mobile"; + } else if (cpu_model > 5) { nmi_ops.cpu_type = "i386/piii"; } else if (cpu_model > 2) { nmi_ops.cpu_type = "i386/pii"; diff -uprN -X /home/phe/dontdiff-2.6.0 linux-temp/arch/i386/oprofile/op_model_ppro.c linux-2.5/arch/i386/oprofile/op_model_ppro.c --- linux-temp/arch/i386/oprofile/op_model_ppro.c 2004-02-12 22:00:59.000000000 +0000 +++ linux-2.5/arch/i386/oprofile/op_model_ppro.c 2004-02-12 22:27:31.000000000 +0000 @@ -13,6 +13,7 @@ #include <linux/oprofile.h> #include <asm/ptrace.h> #include <asm/msr.h> +#include <asm/apic.h> #include "op_x86_model.h" #include "op_counter.h" @@ -101,6 +102,10 @@ static int ppro_check_ctrs(unsigned int } } + /* Only P6 based Pentium M need to re-unmask the apic vector but it + * doesn't hurt other P6 variant */ + apic_write(APIC_LVTPC, apic_read(APIC_LVTPC) & ~APIC_LVT_MASKED); + /* We can't work out if we really handled an interrupt. We * might have caught a *second* counter just after overflowing * the interrupt for this counter then arrives - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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