xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

perf: Register PMU implementations

Browse Source 
Simple registration interface for struct pmu, this provides the
infrastructure for removing all the weak functions.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus <paulus@samba.org>
Cc: stephane eranian <eranian@googlemail.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Michael Cree <mcree@orcon.net.nz>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2010-06-11 13:35:08 +02:00
committed by Ingo Molnar
parent 51b0fe3954
commit b0a873ebbf
10 changed files with 506 additions and 430 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
kernel/hw_breakpoint.c
View File

@@ -565,6 +565,34 @@ static struct notifier_block hw_breakpoint_exceptions_nb = {
.priority = 0x7fffffff
};
static void bp_perf_event_destroy(struct perf_event *event)
{
release_bp_slot(event);
}
static int hw_breakpoint_event_init(struct perf_event *bp)
{
int err;
if (bp->attr.type != PERF_TYPE_BREAKPOINT)
return -ENOENT;
err = register_perf_hw_breakpoint(bp);
if (err)
return err;
bp->destroy = bp_perf_event_destroy;
return 0;
}
static struct pmu perf_breakpoint = {
.event_init = hw_breakpoint_event_init,
.enable = arch_install_hw_breakpoint,
.disable = arch_uninstall_hw_breakpoint,
.read = hw_breakpoint_pmu_read,
};
static int __init init_hw_breakpoint(void)
{
unsigned int **task_bp_pinned;
@@ -586,6 +614,8 @@ static int __init init_hw_breakpoint(void)
constraints_initialized = 1;
perf_pmu_register(&perf_breakpoint);
return register_die_notifier(&hw_breakpoint_exceptions_nb);
err_alloc:
@@ -601,8 +631,3 @@ static int __init init_hw_breakpoint(void)
core_initcall(init_hw_breakpoint);
struct pmu perf_ops_bp = {
.enable = arch_install_hw_breakpoint,
.disable = arch_uninstall_hw_breakpoint,
.read = hw_breakpoint_pmu_read,
};