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x86/oprofile: cleanup IBS init/exit functions in op_model_amd.c

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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>
This commit is contained in:
Robert Richter 2008-11-24 14:58:03 +01:00
parent 9fa6812dba
commit fe615cbf34
1 changed files with 17 additions and 15 deletions
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32
arch/x86/oprofile/op_model_amd.c
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@ -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