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authorRobert Richter <robert.richter@amd.com>2008-11-24 14:58:03 +0100
committerRobert Richter <robert.richter@amd.com>2008-12-10 14:20:08 +0100
commitfe615cbf34fc6a1c53c359417da4696328a488ed (patch)
tree1e2bd7720e5be3568a6934bf53a430b6a14bc9b8 /arch/x86/oprofile
parent9fa6812dbab9207f7af52c3d0417f1f9eb89c386 (diff)
downloadop-kernel-dev-fe615cbf34fc6a1c53c359417da4696328a488ed.zip
op-kernel-dev-fe615cbf34fc6a1c53c359417da4696328a488ed.tar.gz
x86/oprofile: cleanup IBS init/exit functions in op_model_amd.c
Implementation of pairwise init/exit funcions for IBS and IBS NMI setup. There are also some function renames and the removal of forward function declarations. Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'arch/x86/oprofile')
-rw-r--r--arch/x86/oprofile/op_model_amd.c32
1 files changed, 17 insertions, 15 deletions
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 8ff657b..98658f2 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -106,11 +106,6 @@ struct ibs_op_sample {
unsigned int ibs_dc_phys_high;
};
-/*
- * unitialize the APIC for the IBS interrupts if needed on AMD Family10h+
- */
-static void clear_ibs_nmi(void);
-
static int ibs_allowed; /* AMD Family10h and later */
struct op_ibs_config {
@@ -390,7 +385,7 @@ static inline void apic_clear_ibs_nmi_per_cpu(void *arg)
setup_APIC_eilvt_ibs(0, APIC_EILVT_MSG_FIX, 1);
}
-static int pfm_amd64_setup_eilvt(void)
+static int init_ibs_nmi(void)
{
#define IBSCTL_LVTOFFSETVAL (1 << 8)
#define IBSCTL 0x1cc
@@ -438,15 +433,22 @@ static int pfm_amd64_setup_eilvt(void)
return 0;
}
+/* uninitialize the APIC for the IBS interrupts if needed */
+static void clear_ibs_nmi(void)
+{
+ if (ibs_allowed)
+ on_each_cpu(apic_clear_ibs_nmi_per_cpu, NULL, 1);
+}
+
/* initialize the APIC for the IBS interrupts if available */
-static void setup_ibs(void)
+static void ibs_init(void)
{
ibs_allowed = boot_cpu_has(X86_FEATURE_IBS);
if (!ibs_allowed)
return;
- if (pfm_amd64_setup_eilvt()) {
+ if (init_ibs_nmi()) {
ibs_allowed = 0;
return;
}
@@ -454,12 +456,12 @@ static void setup_ibs(void)
printk(KERN_INFO "oprofile: AMD IBS detected\n");
}
-
-/* uninitialize the APIC for the IBS interrupts if needed */
-static void clear_ibs_nmi(void)
+static void ibs_exit(void)
{
- if (ibs_allowed)
- on_each_cpu(apic_clear_ibs_nmi_per_cpu, NULL, 1);
+ if (!ibs_allowed)
+ return;
+
+ clear_ibs_nmi();
}
static int (*create_arch_files)(struct super_block *sb, struct dentry *root);
@@ -509,7 +511,7 @@ static int setup_ibs_files(struct super_block *sb, struct dentry *root)
static int op_amd_init(struct oprofile_operations *ops)
{
- setup_ibs();
+ ibs_init();
create_arch_files = ops->create_files;
ops->create_files = setup_ibs_files;
return 0;
@@ -517,7 +519,7 @@ static int op_amd_init(struct oprofile_operations *ops)
static void op_amd_exit(void)
{
- clear_ibs_nmi();
+ ibs_exit();
}
#else
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