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x86/oprofile: introduce model specific init/exit functions
This patch implements model specific OProfile init/exit functions for x86 CPUs. Though there is more rework needed at the initialization code, this new introduced functions allow it to keep model specific code in the corresponding op_model_*.c files. The function interface is the same as for oprofile_arch_init/exit(). Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: oprofile-list <oprofile-list@lists.sourceforge.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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3 changed files with 27 additions and 4 deletions
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@ -1,10 +1,11 @@
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/**
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/**
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* @file nmi_int.c
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* @file nmi_int.c
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*
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*
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* @remark Copyright 2002 OProfile authors
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* @remark Copyright 2002-2008 OProfile authors
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* @remark Read the file COPYING
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* @remark Read the file COPYING
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*
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*
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* @author John Levon <levon@movementarian.org>
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* @author John Levon <levon@movementarian.org>
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* @author Robert Richter <robert.richter@amd.com>
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*/
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*/
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#include <linux/init.h>
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#include <linux/init.h>
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@ -411,6 +412,7 @@ int __init op_nmi_init(struct oprofile_operations *ops)
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__u8 vendor = boot_cpu_data.x86_vendor;
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__u8 vendor = boot_cpu_data.x86_vendor;
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__u8 family = boot_cpu_data.x86;
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__u8 family = boot_cpu_data.x86;
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char *cpu_type;
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char *cpu_type;
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int ret = 0;
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if (!cpu_has_apic)
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if (!cpu_has_apic)
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return -ENODEV;
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return -ENODEV;
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@ -466,6 +468,11 @@ int __init op_nmi_init(struct oprofile_operations *ops)
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return -ENODEV;
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return -ENODEV;
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}
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}
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if (model->init)
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ret = model->init(ops);
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if (ret)
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return ret;
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init_sysfs();
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init_sysfs();
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using_nmi = 1;
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using_nmi = 1;
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ops->create_files = nmi_create_files;
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ops->create_files = nmi_create_files;
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@ -482,4 +489,6 @@ void op_nmi_exit(void)
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{
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{
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if (using_nmi)
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if (using_nmi)
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exit_sysfs();
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exit_sysfs();
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if (model->exit)
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model->exit();
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}
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}
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@ -1,14 +1,15 @@
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/*
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/*
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* @file op_model_athlon.h
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* @file op_model_athlon.c
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* athlon / K7 / K8 / Family 10h model-specific MSR operations
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* athlon / K7 / K8 / Family 10h model-specific MSR operations
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*
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*
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* @remark Copyright 2002 OProfile authors
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* @remark Copyright 2002-2008 OProfile authors
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* @remark Read the file COPYING
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* @remark Read the file COPYING
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*
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*
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* @author John Levon
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* @author John Levon
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* @author Philippe Elie
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* @author Philippe Elie
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* @author Graydon Hoare
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* @author Graydon Hoare
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*/
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* @author Robert Richter <robert.richter@amd.com>
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*/
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#include <linux/oprofile.h>
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#include <linux/oprofile.h>
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#include <asm/ptrace.h>
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#include <asm/ptrace.h>
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@ -178,7 +179,18 @@ static void athlon_shutdown(struct op_msrs const * const msrs)
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}
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}
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}
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}
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static int op_amd_init(struct oprofile_operations *ops)
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{
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return 0;
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}
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static void op_amd_exit(void)
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{
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}
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struct op_x86_model_spec const op_athlon_spec = {
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struct op_x86_model_spec const op_athlon_spec = {
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.init = op_amd_init,
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.exit = op_amd_exit,
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.num_counters = NUM_COUNTERS,
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.num_counters = NUM_COUNTERS,
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.num_controls = NUM_CONTROLS,
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.num_controls = NUM_CONTROLS,
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.fill_in_addresses = &athlon_fill_in_addresses,
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.fill_in_addresses = &athlon_fill_in_addresses,
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@ -32,6 +32,8 @@ struct pt_regs;
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* various x86 CPU models' perfctr support.
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* various x86 CPU models' perfctr support.
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*/
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*/
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struct op_x86_model_spec {
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struct op_x86_model_spec {
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int (*init)(struct oprofile_operations *ops);
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void (*exit)(void);
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unsigned int const num_counters;
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unsigned int const num_counters;
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unsigned int const num_controls;
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unsigned int const num_controls;
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void (*fill_in_addresses)(struct op_msrs * const msrs);
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void (*fill_in_addresses)(struct op_msrs * const msrs);
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