From: Ravi Bangoria <ravi.bangoria@amd.com>
To: <acme@kernel.org>
Cc: <ravi.bangoria@amd.com>, <peterz@infradead.org>,
<rrichter@amd.com>, <mingo@redhat.com>, <mark.rutland@arm.com>,
<jolsa@kernel.org>, <namhyung@kernel.org>, <tglx@linutronix.de>,
<bp@alien8.de>, <irogers@google.com>, <james.clark@arm.com>,
<leo.yan@linaro.org>, <kan.liang@linux.intel.com>,
<ak@linux.intel.com>, <eranian@google.com>,
<like.xu.linux@gmail.com>, <x86@kernel.org>,
<linux-perf-users@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <sandipan.das@amd.com>,
<ananth.narayan@amd.com>, <kim.phillips@amd.com>,
<santosh.shukla@amd.com>
Subject: [PATCH v3 3/5] perf/x86/ibs: Add new IBS register bits into header
Date: Thu, 19 May 2022 11:13:53 +0530 [thread overview]
Message-ID: <20220519054355.477-4-ravi.bangoria@amd.com> (raw)
In-Reply-To: <20220519054355.477-1-ravi.bangoria@amd.com>
IBS support has been enhanced with two new features in upcoming uarch:
1. DataSrc extension and 2. L3 miss filtering. Additional set of bits
has been introduced in IBS registers to exploit these features. Define
these new bits into arch/x86/ header.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
---
arch/x86/include/asm/amd-ibs.h | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/amd-ibs.h b/arch/x86/include/asm/amd-ibs.h
index aabdbb5ab920..f3eb098d63d4 100644
--- a/arch/x86/include/asm/amd-ibs.h
+++ b/arch/x86/include/asm/amd-ibs.h
@@ -29,7 +29,10 @@ union ibs_fetch_ctl {
rand_en:1, /* 57: random tagging enable */
fetch_l2_miss:1,/* 58: L2 miss for sampled fetch
* (needs IbsFetchComp) */
- reserved:5; /* 59-63: reserved */
+ l3_miss_only:1, /* 59: Collect L3 miss samples only */
+ fetch_oc_miss:1,/* 60: Op cache miss for the sampled fetch */
+ fetch_l3_miss:1,/* 61: L3 cache miss for the sampled fetch */
+ reserved:2; /* 62-63: reserved */
};
};
@@ -38,14 +41,14 @@ union ibs_op_ctl {
__u64 val;
struct {
__u64 opmaxcnt:16, /* 0-15: periodic op max. count */
- reserved0:1, /* 16: reserved */
+ l3_miss_only:1, /* 16: Collect L3 miss samples only */
op_en:1, /* 17: op sampling enable */
op_val:1, /* 18: op sample valid */
cnt_ctl:1, /* 19: periodic op counter control */
opmaxcnt_ext:7, /* 20-26: upper 7 bits of periodic op maximum count */
- reserved1:5, /* 27-31: reserved */
+ reserved0:5, /* 27-31: reserved */
opcurcnt:27, /* 32-58: periodic op counter current count */
- reserved2:5; /* 59-63: reserved */
+ reserved1:5; /* 59-63: reserved */
};
};
@@ -71,11 +74,12 @@ union ibs_op_data {
union ibs_op_data2 {
__u64 val;
struct {
- __u64 data_src:3, /* 0-2: data source */
+ __u64 data_src_lo:3, /* 0-2: data source low */
reserved0:1, /* 3: reserved */
rmt_node:1, /* 4: destination node */
cache_hit_st:1, /* 5: cache hit state */
- reserved1:57; /* 5-63: reserved */
+ data_src_hi:2, /* 6-7: data source high */
+ reserved1:56; /* 8-63: reserved */
};
};
--
2.27.0
next prev parent reply other threads:[~2022-05-19 5:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 5:43 [PATCH v3 0/5] perf/amd: Zen4 IBS extensions support (tool changes) Ravi Bangoria
2022-05-19 5:43 ` [PATCH v3 1/5] perf record ibs: Warn about sampling period skew Ravi Bangoria
2022-05-19 22:14 ` Ian Rogers
2022-05-19 5:43 ` [PATCH v3 2/5] perf header: Parse non-cpu pmu capabilities Ravi Bangoria
2022-05-19 22:27 ` Ian Rogers
2022-05-20 3:49 ` Ravi Bangoria
2022-05-20 4:31 ` Ian Rogers
2022-05-20 5:20 ` Ravi Bangoria
2022-05-19 5:43 ` Ravi Bangoria [this message]
2022-05-19 23:47 ` [PATCH v3 3/5] perf/x86/ibs: Add new IBS register bits into header Ian Rogers
2022-05-19 5:43 ` [PATCH v3 4/5] perf tool ibs: Sync amd ibs header file Ravi Bangoria
2022-05-19 23:48 ` Ian Rogers
2022-05-20 3:55 ` Ravi Bangoria
2022-05-20 4:32 ` Ian Rogers
2022-05-19 5:43 ` [PATCH v3 5/5] perf script ibs: Support new IBS bits in raw trace dump Ravi Bangoria
2022-05-19 23:50 ` Ian Rogers
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