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| author | Ravi Bangoria <ravi.bangoria@amd.com> | 2022-06-04 10:15:17 +0530 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-07-27 13:54:38 +0200 |
| commit | 326ecc15c61c349cd49d1700ff9e3e31c6fd1cd5 (patch) | |
| tree | 5b0113a30a6b9c54e46019c48d06ebe9335b9db4 | |
| parent | ccf170e9d8fdacfe435bbe3749c897c7d86d32f8 (diff) | |
| download | linux-326ecc15c61c349cd49d1700ff9e3e31c6fd1cd5.tar.bz2 | |
perf/x86/ibs: Add new IBS register bits into header
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 use these
features. Define these new bits into arch/x86/ header.
[ bp: Massage commit message. ]
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20220604044519.594-7-ravi.bangoria@amd.com
| -rw-r--r-- | arch/x86/include/asm/amd-ibs.h | 16 |
1 files 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 */ }; }; |