Song Liu 856c02dbce bpf: Introduce helper bpf_get_branch_snapshot ... Introduce bpf_get_branch_snapshot(), which allows tracing pogram to get branch trace from hardware (e.g. Intel LBR). To use the feature, the user need to create perf_event with proper branch_record filtering on each cpu, and then calls bpf_get_branch_snapshot in the bpf function. On Intel CPUs, VLBR event (raw event 0x1b00) can be use for this. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210910183352.3151445-3-songliubraving@fb.com		2021-09-13 10:53:50 -07:00
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asm-generic	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
drm	drm/tegra: Changes for v5.15-rc1	2021-08-26 13:05:19 +10:00
linux	bpf: Introduce helper bpf_get_branch_snapshot	2021-09-13 10:53:50 -07:00
misc	habanalabs: added open_stats info ioctl	2021-06-18 15:23:42 +03:00
mtd	mtd: add OTP (one-time-programmable) erase ioctl	2021-03-28 19:24:54 +02:00
rdma	Merge branch 'sg_nents' into rdma.git for-next	2021-08-30 09:49:59 -03:00
scsi	scsi: fc: Add EDC ELS definition	2021-08-24 22:56:33 -04:00
sound	ASoC: Updates for v5.15	2021-08-30 14:57:03 +02:00
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