From fe615cbf34fc6a1c53c359417da4696328a488ed Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Mon, 24 Nov 2008 14:58:03 +0100 Subject: [PATCH] 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 --- arch/x86/oprofile/op_model_amd.c | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-) diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c index 8ff657b3ff8..98658f25f54 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 -- 2.41.1