x86/oprofile: Modify initialization of num_virt_counters

Models that do not yet support counter multiplexing have to setup
num_virt_counters. This patch implements the setup from num_counters
if num_virt_counters is not set. Thus, num_virt_counters must be setup
only for multiplexing support.

Signed-off-by: Robert Richter <robert.richter@amd.com>

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 826f391..82ee295 100644 (file)
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -674,6 +674,9 @@ int __init op_nmi_init(struct oprofile_operations *ops)
        if (ret)
                return ret;
 
+       if (!model->num_virt_counters)
+               model->num_virt_counters = model->num_counters;
+
        init_sysfs();
        using_nmi = 1;
        printk(KERN_INFO "oprofile: using NMI interrupt.\n");

diff --git a/arch/x86/oprofile/op_model_p4.c b/arch/x86/oprofile/op_model_p4.c
index 0a4f2de..ac6b354 100644 (file)
--- a/arch/x86/oprofile/op_model_p4.c
+++ b/arch/x86/oprofile/op_model_p4.c
@@ -698,7 +698,6 @@ static void p4_shutdown(struct op_msrs const * const msrs)
 struct op_x86_model_spec op_p4_ht2_spec = {
        .num_counters           = NUM_COUNTERS_HT2,
        .num_controls           = NUM_CONTROLS_HT2,
-       .num_virt_counters      = NUM_COUNTERS_HT2,
        .fill_in_addresses      = &p4_fill_in_addresses,
        .setup_ctrs             = &p4_setup_ctrs,
        .check_ctrs             = &p4_check_ctrs,
@@ -711,7 +710,6 @@ struct op_x86_model_spec op_p4_ht2_spec = {
 struct op_x86_model_spec op_p4_spec = {
        .num_counters           = NUM_COUNTERS_NON_HT,
        .num_controls           = NUM_CONTROLS_NON_HT,
-       .num_virt_counters      = NUM_COUNTERS_NON_HT,
        .fill_in_addresses      = &p4_fill_in_addresses,
        .setup_ctrs             = &p4_setup_ctrs,
        .check_ctrs             = &p4_check_ctrs,

diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 753a02a..4899215 100644 (file)
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -206,7 +206,6 @@ static void ppro_shutdown(struct op_msrs const * const msrs)
 struct op_x86_model_spec op_ppro_spec = {
        .num_counters           = 2,
        .num_controls           = 2,
-       .num_virt_counters      = 2,
        .reserved               = MSR_PPRO_EVENTSEL_RESERVED,
        .fill_in_addresses      = &ppro_fill_in_addresses,
        .setup_ctrs             = &ppro_setup_ctrs,