linux_dsm_epyc7002/arch/x86
Andi Kleen d3617b98b0 perf/x86/lbr: Avoid reading the LBRs when adaptive PEBS handles them
With adaptive PEBS the CPU can directly supply the LBR information,
so we don't need to read it again. But the LBRs still need to be
enabled. Add a special count to the cpuc that distinguishes these
two cases, and avoid reading the LBRs unnecessarily when PEBS is
active.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: acme@kernel.org
Cc: jolsa@kernel.org
Link: https://lkml.kernel.org/r/20190402194509.2832-7-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-04-16 12:26:17 +02:00
..
boot x86/boot: Fix incorrect ifdeffery scope 2019-03-27 14:00:51 +01:00
configs Merge branch 'akpm' (patches from Andrew) 2019-03-07 19:25:37 -08:00
crypto crypto: x86/poly1305 - Clear key material from stack in SSE2 variant 2019-02-28 14:17:59 +08:00
entry pidfd patches for v5.1-rc1 2019-03-16 13:47:14 -07:00
events perf/x86/lbr: Avoid reading the LBRs when adaptive PEBS handles them 2019-04-16 12:26:17 +02:00
hyperv x86/hyperv: Prevent potential NULL pointer dereference 2019-03-21 12:24:39 +01:00
ia32 a.out: remove core dumping support 2019-03-05 10:00:35 -08:00
include perf/x86/intel: Support adaptive PEBS v4 2019-04-16 12:25:47 +02:00
kernel perf/x86: Support outputting XMM registers 2019-04-16 12:19:36 +02:00
kvm KVM: x86: nVMX: fix x2APIC VTPR read intercept 2019-04-05 21:08:30 +02:00
lib x86/lib: Fix indentation issue, remove extra tab 2019-03-21 12:24:38 +01:00
math-emu Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
mm x86/mm: Don't exceed the valid physical address space 2019-03-28 14:13:51 +01:00
net x32: bpf: implement jitting of JMP32 2019-01-26 13:33:02 -08:00
oprofile
pci x86/PCI: Fixup RTIT_BAR of Intel Denverton Trace Hub 2019-02-07 08:43:58 -06:00
platform x86/realmode: Make set_real_mode_mem() static inline 2019-03-29 10:16:27 +01:00
power mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
purgatory kbuild: move bin2c back to scripts/ from scripts/basic/ 2018-07-18 01:18:05 +09:00
ras
realmode x86/realmode: Make set_real_mode_mem() static inline 2019-03-29 10:16:27 +01:00
tools x86: Clean up 'sizeof x' => 'sizeof(x)' 2018-10-29 07:13:28 +01:00
um Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
video
xen Merge branch 'akpm' (patches from Andrew) 2019-03-12 10:39:53 -07:00
.gitignore
Kbuild KVM: x86: Allow Qemu/KVM to use PVH entry point 2018-12-13 13:41:49 -05:00
Kconfig x86/smp: Enforce CONFIG_HOTPLUG_CPU when SMP=y 2019-03-28 13:34:58 +01:00
Kconfig.cpu x86/cpu: Create Hygon Dhyana architecture support file 2018-09-27 16:14:05 +02:00
Kconfig.debug efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation 2019-02-04 08:27:30 +01:00
Makefile x86/retpolines: Disable switch jump tables when retpolines are enabled 2019-03-28 13:39:48 +01:00
Makefile_32.cpu
Makefile.um x86, powerpc: Remove -funit-at-a-time compiler option entirely 2018-12-09 11:55:32 +01:00