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From: Alexander Shishkin <alexander.shishkin@linux.intel.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, vince@deater.net,
	eranian@google.com, Arnaldo Carvalho de Melo <acme@infradead.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>
Subject: [PATCH v1 2/5] perf/x86/intel/pt: IP filtering register/cpuid bits
Date: Thu, 21 Apr 2016 18:17:00 +0300	[thread overview]
Message-ID: <1461251823-12416-3-git-send-email-alexander.shishkin@linux.intel.com> (raw)
In-Reply-To: <1461251823-12416-1-git-send-email-alexander.shishkin@linux.intel.com>

New versions of Intel PT support address range-based filtering. These
are the registers, bit definitions and relevant CPUID bits.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
---
 arch/x86/events/intel/pt.c       |  2 ++
 arch/x86/events/intel/pt.h       |  2 ++
 arch/x86/include/asm/msr-index.h | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+)

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index 127f58c179..891447dd61 100644
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -67,11 +67,13 @@ static struct pt_cap_desc {
 	PT_CAP(max_subleaf,		0, CR_EAX, 0xffffffff),
 	PT_CAP(cr3_filtering,		0, CR_EBX, BIT(0)),
 	PT_CAP(psb_cyc,			0, CR_EBX, BIT(1)),
+	PT_CAP(ip_filtering,		0, CR_EBX, BIT(2)),
 	PT_CAP(mtc,			0, CR_EBX, BIT(3)),
 	PT_CAP(topa_output,		0, CR_ECX, BIT(0)),
 	PT_CAP(topa_multiple_entries,	0, CR_ECX, BIT(1)),
 	PT_CAP(single_range_output,	0, CR_ECX, BIT(2)),
 	PT_CAP(payloads_lip,		0, CR_ECX, BIT(31)),
+	PT_CAP(num_address_ranges,	1, CR_EAX, 0x3),
 	PT_CAP(mtc_periods,		1, CR_EAX, 0xffff0000),
 	PT_CAP(cycle_thresholds,	1, CR_EBX, 0xffff),
 	PT_CAP(psb_periods,		1, CR_EBX, 0xffff0000),
diff --git a/arch/x86/events/intel/pt.h b/arch/x86/events/intel/pt.h
index 336878a5d2..6ce8cd20b9 100644
--- a/arch/x86/events/intel/pt.h
+++ b/arch/x86/events/intel/pt.h
@@ -52,11 +52,13 @@ enum pt_capabilities {
 	PT_CAP_max_subleaf = 0,
 	PT_CAP_cr3_filtering,
 	PT_CAP_psb_cyc,
+	PT_CAP_ip_filtering,
 	PT_CAP_mtc,
 	PT_CAP_topa_output,
 	PT_CAP_topa_multiple_entries,
 	PT_CAP_single_range_output,
 	PT_CAP_payloads_lip,
+	PT_CAP_num_address_ranges,
 	PT_CAP_mtc_periods,
 	PT_CAP_cycle_thresholds,
 	PT_CAP_psb_periods,
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index e0e2f7dfbd..964d7e17a6 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -105,11 +105,29 @@
 #define RTIT_CTL_CYC_THRESH		(0x0full << RTIT_CTL_CYC_THRESH_OFFSET)
 #define RTIT_CTL_PSB_FREQ_OFFSET	24
 #define RTIT_CTL_PSB_FREQ      		(0x0full << RTIT_CTL_PSB_FREQ_OFFSET)
+#define RTIT_CTL_ADDR0_OFFSET		32
+#define RTIT_CTL_ADDR0      		(0x0full << RTIT_CTL_ADDR0_OFFSET)
+#define RTIT_CTL_ADDR1_OFFSET		36
+#define RTIT_CTL_ADDR1      		(0x0full << RTIT_CTL_ADDR1_OFFSET)
+#define RTIT_CTL_ADDR2_OFFSET		40
+#define RTIT_CTL_ADDR2      		(0x0full << RTIT_CTL_ADDR2_OFFSET)
+#define RTIT_CTL_ADDR3_OFFSET		44
+#define RTIT_CTL_ADDR3      		(0x0full << RTIT_CTL_ADDR3_OFFSET)
 #define MSR_IA32_RTIT_STATUS		0x00000571
+#define RTIT_STATUS_FILTEREN		BIT(0)
 #define RTIT_STATUS_CONTEXTEN		BIT(1)
 #define RTIT_STATUS_TRIGGEREN		BIT(2)
+#define RTIT_STATUS_BUFFOVF		BIT(3)
 #define RTIT_STATUS_ERROR		BIT(4)
 #define RTIT_STATUS_STOPPED		BIT(5)
+#define MSR_IA32_RTIT_ADDR0_A		0x00000580
+#define MSR_IA32_RTIT_ADDR0_B		0x00000581
+#define MSR_IA32_RTIT_ADDR1_A		0x00000582
+#define MSR_IA32_RTIT_ADDR1_B		0x00000583
+#define MSR_IA32_RTIT_ADDR2_A		0x00000584
+#define MSR_IA32_RTIT_ADDR2_B		0x00000585
+#define MSR_IA32_RTIT_ADDR3_A		0x00000586
+#define MSR_IA32_RTIT_ADDR3_B		0x00000587
 #define MSR_IA32_RTIT_CR3_MATCH		0x00000572
 #define MSR_IA32_RTIT_OUTPUT_BASE	0x00000560
 #define MSR_IA32_RTIT_OUTPUT_MASK	0x00000561
-- 
2.8.0.rc3

  parent reply	other threads:[~2016-04-21 15:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-21 15:16 [PATCH v1 0/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-21 15:16 ` [PATCH v1 1/5] perf: Move set_filter() from behind EVENT_TRACING Alexander Shishkin
2016-04-21 15:17 ` Alexander Shishkin [this message]
2016-04-21 17:48   ` [PATCH v1 2/5] perf/x86/intel/pt: IP filtering register/cpuid bits Borislav Petkov
2016-04-21 18:55     ` Thomas Gleixner
2016-04-21 19:17       ` Peter Zijlstra
2016-04-21 20:39         ` Borislav Petkov
2016-04-21 20:37       ` Borislav Petkov
2016-04-22  7:58         ` Thomas Gleixner
2016-04-22  9:34           ` Borislav Petkov
2016-04-21 15:17 ` [PATCH v1 3/5] perf: Extend perf_event_aux_ctx() to optionally iterate through more events Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 4/5] perf: Introduce address range filtering Alexander Shishkin
2016-04-22  7:45   ` Peter Zijlstra
2016-04-22 16:19     ` Alexander Shishkin
2016-04-25 12:57       ` Peter Zijlstra
2016-04-25 15:41         ` Alexander Shishkin
2016-04-25 13:10       ` Peter Zijlstra
2016-04-25 13:36         ` Peter Zijlstra
2016-04-25 16:02         ` Alexander Shishkin
2016-04-25 13:19       ` Peter Zijlstra
2016-04-25 16:03         ` Alexander Shishkin
2016-04-25 14:14       ` Peter Zijlstra
2016-04-25 16:07         ` Alexander Shishkin
2016-04-25 14:25       ` Peter Zijlstra
2016-04-25 16:14         ` Alexander Shishkin
2016-04-26 14:35         ` Alexander Shishkin
2016-04-21 15:17 ` [PATCH v1 5/5] perf/x86/intel/pt: Add support for address range filtering in PT Alexander Shishkin

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