From: Robert Richter <robert.richter@amd.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
oprofile-list <oprofile-list@lists.sourceforge.net>,
Robert Richter <robert.richter@amd.com>
Subject: [PATCH 8/9] oprofile/x86: group IBS code
Date: Thu, 4 Mar 2010 16:22:10 +0100 [thread overview]
Message-ID: <1267716131-17908-9-git-send-email-robert.richter@amd.com> (raw)
In-Reply-To: <1267716131-17908-1-git-send-email-robert.richter@amd.com>
Moving code in preparation of the next patch. This groups all IBS code
together.
Signed-off-by: Robert Richter <robert.richter@amd.com>
---
arch/x86/oprofile/op_model_amd.c | 202 +++++++++++++++++++-------------------
1 files changed, 101 insertions(+), 101 deletions(-)
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 128d84c..9c0d978 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -105,107 +105,6 @@ static u32 get_ibs_caps(void)
return ibs_caps;
}
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-
-static void op_mux_switch_ctrl(struct op_x86_model_spec const *model,
- struct op_msrs const * const msrs)
-{
- u64 val;
- int i;
-
- /* enable active counters */
- for (i = 0; i < NUM_COUNTERS; ++i) {
- int virt = op_x86_phys_to_virt(i);
- if (!reset_value[virt])
- continue;
- rdmsrl(msrs->controls[i].addr, val);
- val &= model->reserved;
- val |= op_x86_get_ctrl(model, &counter_config[virt]);
- wrmsrl(msrs->controls[i].addr, val);
- }
-}
-
-#endif
-
-/* functions for op_amd_spec */
-
-static void op_amd_shutdown(struct op_msrs const * const msrs);
-
-static int op_amd_fill_in_addresses(struct op_msrs * const msrs)
-{
- int i;
-
- for (i = 0; i < NUM_COUNTERS; i++) {
- if (reserve_perfctr(i)) {
- msrs->counters[i].addr = MSR_K7_PERFCTR0 + i;
- msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i;
- } else if (counter_config[i].enabled) {
- op_x86_warn_reserved(i);
- op_amd_shutdown(msrs);
- return -EBUSY;
- }
- }
-
- return 0;
-}
-
-static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
- struct op_msrs const * const msrs)
-{
- u64 val;
- int i;
-
- /* setup reset_value */
- for (i = 0; i < NUM_VIRT_COUNTERS; ++i) {
- if (counter_config[i].enabled
- && msrs->counters[op_x86_virt_to_phys(i)].addr)
- reset_value[i] = counter_config[i].count;
- else
- reset_value[i] = 0;
- }
-
- /* clear all counters */
- for (i = 0; i < NUM_CONTROLS; ++i) {
- if (unlikely(!msrs->controls[i].addr)) {
- if (counter_config[i].enabled && !smp_processor_id())
- /*
- * counter is reserved, this is on all
- * cpus, so report only for cpu #0
- */
- op_x86_warn_reserved(i);
- continue;
- }
- rdmsrl(msrs->controls[i].addr, val);
- if (val & ARCH_PERFMON_EVENTSEL_ENABLE)
- op_x86_warn_in_use(i);
- val &= model->reserved;
- wrmsrl(msrs->controls[i].addr, val);
- }
-
- /* avoid a false detection of ctr overflows in NMI handler */
- for (i = 0; i < NUM_COUNTERS; ++i) {
- if (unlikely(!msrs->counters[i].addr))
- continue;
- wrmsrl(msrs->counters[i].addr, -1LL);
- }
-
- /* enable active counters */
- for (i = 0; i < NUM_COUNTERS; ++i) {
- int virt = op_x86_phys_to_virt(i);
- if (!reset_value[virt])
- continue;
-
- /* setup counter registers */
- wrmsrl(msrs->counters[i].addr, -(u64)reset_value[virt]);
-
- /* setup control registers */
- rdmsrl(msrs->controls[i].addr, val);
- val &= model->reserved;
- val |= op_x86_get_ctrl(model, &counter_config[virt]);
- wrmsrl(msrs->controls[i].addr, val);
- }
-}
-
/*
* 16-bit Linear Feedback Shift Register (LFSR)
*
@@ -370,6 +269,107 @@ static void op_amd_stop_ibs(void)
wrmsrl(MSR_AMD64_IBSOPCTL, 0);
}
+#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+
+static void op_mux_switch_ctrl(struct op_x86_model_spec const *model,
+ struct op_msrs const * const msrs)
+{
+ u64 val;
+ int i;
+
+ /* enable active counters */
+ for (i = 0; i < NUM_COUNTERS; ++i) {
+ int virt = op_x86_phys_to_virt(i);
+ if (!reset_value[virt])
+ continue;
+ rdmsrl(msrs->controls[i].addr, val);
+ val &= model->reserved;
+ val |= op_x86_get_ctrl(model, &counter_config[virt]);
+ wrmsrl(msrs->controls[i].addr, val);
+ }
+}
+
+#endif
+
+/* functions for op_amd_spec */
+
+static void op_amd_shutdown(struct op_msrs const * const msrs);
+
+static int op_amd_fill_in_addresses(struct op_msrs * const msrs)
+{
+ int i;
+
+ for (i = 0; i < NUM_COUNTERS; i++) {
+ if (reserve_perfctr(i)) {
+ msrs->counters[i].addr = MSR_K7_PERFCTR0 + i;
+ msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i;
+ } else if (counter_config[i].enabled) {
+ op_x86_warn_reserved(i);
+ op_amd_shutdown(msrs);
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+
+static void op_amd_setup_ctrs(struct op_x86_model_spec const *model,
+ struct op_msrs const * const msrs)
+{
+ u64 val;
+ int i;
+
+ /* setup reset_value */
+ for (i = 0; i < NUM_VIRT_COUNTERS; ++i) {
+ if (counter_config[i].enabled
+ && msrs->counters[op_x86_virt_to_phys(i)].addr)
+ reset_value[i] = counter_config[i].count;
+ else
+ reset_value[i] = 0;
+ }
+
+ /* clear all counters */
+ for (i = 0; i < NUM_CONTROLS; ++i) {
+ if (unlikely(!msrs->controls[i].addr)) {
+ if (counter_config[i].enabled && !smp_processor_id())
+ /*
+ * counter is reserved, this is on all
+ * cpus, so report only for cpu #0
+ */
+ op_x86_warn_reserved(i);
+ continue;
+ }
+ rdmsrl(msrs->controls[i].addr, val);
+ if (val & ARCH_PERFMON_EVENTSEL_ENABLE)
+ op_x86_warn_in_use(i);
+ val &= model->reserved;
+ wrmsrl(msrs->controls[i].addr, val);
+ }
+
+ /* avoid a false detection of ctr overflows in NMI handler */
+ for (i = 0; i < NUM_COUNTERS; ++i) {
+ if (unlikely(!msrs->counters[i].addr))
+ continue;
+ wrmsrl(msrs->counters[i].addr, -1LL);
+ }
+
+ /* enable active counters */
+ for (i = 0; i < NUM_COUNTERS; ++i) {
+ int virt = op_x86_phys_to_virt(i);
+ if (!reset_value[virt])
+ continue;
+
+ /* setup counter registers */
+ wrmsrl(msrs->counters[i].addr, -(u64)reset_value[virt]);
+
+ /* setup control registers */
+ rdmsrl(msrs->controls[i].addr, val);
+ val &= model->reserved;
+ val |= op_x86_get_ctrl(model, &counter_config[virt]);
+ wrmsrl(msrs->controls[i].addr, val);
+ }
+}
+
static int op_amd_check_ctrs(struct pt_regs * const regs,
struct op_msrs const * const msrs)
{
--
1.7.0
next prev parent reply other threads:[~2010-03-04 16:49 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-04 15:22 [PATCH 0/9] oprofile, perf, x86: introduce new functions to reserve perfctrs Robert Richter
2010-03-04 15:22 ` [PATCH 1/9] perf, x86: reduce number of CONFIG_X86_LOCAL_APIC macros Robert Richter
2010-03-04 15:22 ` [PATCH 2/9] oprofile, perf, x86: do not allocate evntsel counter msr Robert Richter
2010-03-04 15:22 ` [PATCH 3/9] oprofile, perf, x86: introduce new functions to reserve perfctrs by index Robert Richter
2010-03-20 5:45 ` Andi Kleen
2010-03-25 15:52 ` Robert Richter
2010-03-25 19:33 ` Andi Kleen
2010-03-04 15:22 ` [PATCH 4/9] tsc, x86: use new perfctr reservation functions in tsc code Robert Richter
2010-03-04 15:22 ` [PATCH 5/9] perf, x86: use new perfctr reservation functions in perf code Robert Richter
2010-03-04 15:22 ` [PATCH 6/9] oprofile/x86: rework error handler in nmi_setup() Robert Richter
2010-03-04 15:22 ` [PATCH 7/9] oprofile/x86: return -EBUSY if counters are already reserved Robert Richter
2010-03-04 15:22 ` Robert Richter [this message]
2010-03-04 15:22 ` [PATCH 9/9] oprofile/x86: implement perfctr reservation for IBS Robert Richter
2010-03-04 17:59 ` [PATCH 0/9] oprofile, perf, x86: introduce new functions to reserve perfctrs Peter Zijlstra
2010-03-11 11:48 ` Peter Zijlstra
2010-03-11 12:47 ` Ingo Molnar
2010-03-11 15:45 ` Robert Richter
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