diff options
| author | Robert Richter <robert.richter@amd.com> | 2008-07-22 23:09:01 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 13:48:09 +0400 |
| commit | 270d3e1a10e6ef85d5a085377e01d91dbcbe3726 (patch) | |
| tree | 4844fe5a7f21748176f96e47dfaf0f56b8464ae8 /arch/x86/oprofile | |
| parent | fc2bd7345b4e006a34c2ea3711d8c6b83cba50f7 (diff) | |
| download | linux-270d3e1a10e6ef85d5a085377e01d91dbcbe3726.tar.xz | |
OProfile: enable IBS for AMD CPUs
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/oprofile')
| -rw-r--r-- | arch/x86/oprofile/nmi_int.c | 14 | ||||
| -rw-r--r-- | arch/x86/oprofile/op_model_athlon.c | 18 |
2 files changed, 25 insertions, 7 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index b29819313f2b..287513a09819 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -468,6 +468,14 @@ int __init op_nmi_init(struct oprofile_operations *ops) return -ENODEV; } + /* default values, can be overwritten by model */ + ops->create_files = nmi_create_files; + ops->setup = nmi_setup; + ops->shutdown = nmi_shutdown; + ops->start = nmi_start; + ops->stop = nmi_stop; + ops->cpu_type = cpu_type; + if (model->init) ret = model->init(ops); if (ret) @@ -475,12 +483,6 @@ int __init op_nmi_init(struct oprofile_operations *ops) init_sysfs(); using_nmi = 1; - ops->create_files = nmi_create_files; - ops->setup = nmi_setup; - ops->shutdown = nmi_shutdown; - ops->start = nmi_start; - ops->stop = nmi_stop; - ops->cpu_type = cpu_type; printk(KERN_INFO "oprofile: using NMI interrupt.\n"); return 0; } diff --git a/arch/x86/oprofile/op_model_athlon.c b/arch/x86/oprofile/op_model_athlon.c index 2650b12a0c56..0d8390319797 100644 --- a/arch/x86/oprofile/op_model_athlon.c +++ b/arch/x86/oprofile/op_model_athlon.c @@ -446,13 +446,25 @@ static void clear_ibs_nmi(void) on_each_cpu(apic_clear_ibs_nmi_per_cpu, NULL, 1); } +static int (*create_arch_files)(struct super_block * sb, struct dentry * root); + static int setup_ibs_files(struct super_block * sb, struct dentry * root) { char buf[12]; struct dentry *dir; + int ret = 0; + + /* architecture specific files */ + if (create_arch_files) + ret = create_arch_files(sb, root); + + if (ret) + return ret; if (!ibs_allowed) - return 0; + return ret; + + /* model specific files */ /* setup some reasonable defaults */ ibs_config.max_cnt_fetch = 250000; @@ -482,11 +494,15 @@ static int setup_ibs_files(struct super_block * sb, struct dentry * root) static int op_amd_init(struct oprofile_operations *ops) { + setup_ibs(); + create_arch_files = ops->create_files; + ops->create_files = setup_ibs_files; return 0; } static void op_amd_exit(void) { + clear_ibs_nmi(); } struct op_x86_model_spec const op_amd_spec = { |