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| author | Jason Yeh <jason.yeh@amd.com> | 2008-07-23 23:05:53 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-26 11:48:16 +0200 |
| commit | 1a960b402a51d80abf54e3f8e4972374ffe5f22d (patch) | |
| tree | 108222afe94df145e7a71f44bb077067c35f0131 /arch/x86/oprofile/op_model_p4.c | |
| parent | 6852fd9b86d05063c6ef49d2e12e061cc7f6a105 (diff) | |
| download | op-kernel-dev-1a960b402a51d80abf54e3f8e4972374ffe5f22d.zip op-kernel-dev-1a960b402a51d80abf54e3f8e4972374ffe5f22d.tar.gz | |
Oprofile Multiplexing Patch
This patch introduces multiplexing support for the Oprofile kernel
module. It basically adds a new function pointer in oprofile_operator
allowing each architecture to supply its callback to switch between
different sets of event when the timer expires. Userspace tools can
modify the time slice through /dev/oprofile/time_slice.
It also modifies the number of counters exposed to the userspace through
/dev/oprofile. For example, the number of counters for AMD CPUs are
changed to 32 and multiplexed in the sets of 4.
Signed-off-by: Jason Yeh <jason.yeh@amd.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/oprofile/op_model_p4.c')
| -rw-r--r-- | arch/x86/oprofile/op_model_p4.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/oprofile/op_model_p4.c b/arch/x86/oprofile/op_model_p4.c index 56b4757..e641545 100644 --- a/arch/x86/oprofile/op_model_p4.c +++ b/arch/x86/oprofile/op_model_p4.c @@ -701,6 +701,8 @@ static void p4_shutdown(struct op_msrs const * const msrs) struct op_x86_model_spec const op_p4_ht2_spec = { .num_counters = NUM_COUNTERS_HT2, .num_controls = NUM_CONTROLS_HT2, + .num_hardware_counters = NUM_COUNTERS_HT2, + .num_hardware_controls = NUM_CONTROLS_HT2, .fill_in_addresses = &p4_fill_in_addresses, .setup_ctrs = &p4_setup_ctrs, .check_ctrs = &p4_check_ctrs, @@ -713,6 +715,8 @@ struct op_x86_model_spec const op_p4_ht2_spec = { struct op_x86_model_spec const op_p4_spec = { .num_counters = NUM_COUNTERS_NON_HT, .num_controls = NUM_CONTROLS_NON_HT, + .num_hardware_counters = NUM_COUNTERS_NON_HT, + .num_hardware_controls = NUM_CONTROLS_NON_HT, .fill_in_addresses = &p4_fill_in_addresses, .setup_ctrs = &p4_setup_ctrs, .check_ctrs = &p4_check_ctrs, |
