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authorDavid S. Miller <davem@davemloft.net>2019-09-02 11:20:17 -0700
committerDavid S. Miller <davem@davemloft.net>2019-09-02 11:20:17 -0700
commit765b7590c92d849806e9a27ab3a5a17cfc6a47a9 (patch)
tree4387f5034f870accfd2bb56997c535159da45f06 /arch/x86/include/asm/perf_event.h
parentMerge branch 'net-dsa-mv88e6xxx-centralize-SERDES-IRQ-handling' (diff)
parentLinux 5.3-rc7 (diff)
downloadlinux-dev-765b7590c92d849806e9a27ab3a5a17cfc6a47a9.tar.xz
linux-dev-765b7590c92d849806e9a27ab3a5a17cfc6a47a9.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
r8152 conflicts are the NAPI fixes in 'net' overlapping with some tasklet stuff in net-next Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/include/asm/perf_event.h')
-rw-r--r--arch/x86/include/asm/perf_event.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index 1392d5e6e8d6..ee26e9215f18 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -252,16 +252,20 @@ struct pebs_lbr {
#define IBSCTL_LVT_OFFSET_VALID (1ULL<<8)
#define IBSCTL_LVT_OFFSET_MASK 0x0F
-/* ibs fetch bits/masks */
+/* IBS fetch bits/masks */
#define IBS_FETCH_RAND_EN (1ULL<<57)
#define IBS_FETCH_VAL (1ULL<<49)
#define IBS_FETCH_ENABLE (1ULL<<48)
#define IBS_FETCH_CNT 0xFFFF0000ULL
#define IBS_FETCH_MAX_CNT 0x0000FFFFULL
-/* ibs op bits/masks */
-/* lower 4 bits of the current count are ignored: */
-#define IBS_OP_CUR_CNT (0xFFFF0ULL<<32)
+/*
+ * IBS op bits/masks
+ * The lower 7 bits of the current count are random bits
+ * preloaded by hardware and ignored in software
+ */
+#define IBS_OP_CUR_CNT (0xFFF80ULL<<32)
+#define IBS_OP_CUR_CNT_RAND (0x0007FULL<<32)
#define IBS_OP_CNT_CTL (1ULL<<19)
#define IBS_OP_VAL (1ULL<<18)
#define IBS_OP_ENABLE (1ULL<<17)