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Filename Latest commit message Latest commit date
Kim Phillips ebc3ddc1a2 perf/x86/amd: Add missing L2 misses event spec to AMD Family 17h's event map 
commit 25d387287cf0330abf2aad761ce6eee67326a355 upstream.

Commit 3fe3331bb2 ("perf/x86/amd: Add event map for AMD Family 17h"),
claimed L2 misses were unsupported, due to them not being found in its
referenced documentation, whose link has now moved [1].

That old documentation listed PMCx064 unit mask bit 3 as:

    "LsRdBlkC: LS Read Block C S L X Change to X Miss."

and bit 0 as:

    "IcFillMiss: IC Fill Miss"

We now have new public documentation [2] with improved descriptions, that
clearly indicate what events those unit mask bits represent:

Bit 3 now clearly states:

    "LsRdBlkC: Data Cache Req Miss in L2 (all types)"

and bit 0 is:

    "IcFillMiss: Instruction Cache Req Miss in L2."

So we can now add support for L2 misses in perf's genericised events as
PMCx064 with both the above unit masks.

[1] The commit's original documentation reference, "Processor Programming
    Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors",
    originally available here:

        https://www.amd.com/system/files/TechDocs/54945_PPR_Family_17h_Models_00h-0Fh.pdf

    is now available here:

        https://developer.amd.com/wordpress/media/2017/11/54945_PPR_Family_17h_Models_00h-0Fh.pdf

[2] "Processor Programming Reference (PPR) for Family 17h Model 31h,
    Revision B0 Processors", available here:

	https://developer.amd.com/wp-content/resources/55803_0.54-PUB.pdf

Fixes: 3fe3331bb2 ("perf/x86/amd: Add event map for AMD Family 17h")
Reported-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Babu Moger <babu.moger@amd.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200121171232.28839-1-kim.phillips@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-19 19:53:04 +01:00
arch perf/x86/amd: Add missing L2 misses event spec to AMD Family 17h's event map 2020-02-19 19:53:04 +01:00
block block: fix memleak of bio integrity data 2020-01-26 10:01:09 +01:00
certs
crypto crypto: testmgr - don't try to decrypt uninitialized buffers 2020-02-14 16:34:18 -05:00
Documentation dt-bindings: iio: adc: ad7606: Fix wrong maxItems value 2020-02-14 16:34:19 -05:00
drivers EDAC/mc: Fix use-after-free and memleaks during device removal 2020-02-19 19:53:03 +01:00
fs cifs: make sure we do not overflow the max EA buffer size 2020-02-19 19:53:03 +01:00
include ACPICA: Introduce acpi_any_gpe_status_set() 2020-02-19 19:52:57 +01:00
init Revert "um: Enable CONFIG_CONSTRUCTORS" 2020-02-01 09:34:53 +00:00
ipc ipc/msg.c: consolidate all xxxctl_down() functions 2020-02-11 04:35:07 -08:00
kernel ACPI: PM: s2idle: Avoid possible race related to the EC GPE 2020-02-19 19:52:56 +01:00
lib lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more() 2020-02-11 04:35:14 -08:00
LICENSES
mm mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush 2020-02-11 04:35:42 -08:00
net xprtrdma: Fix DMA scatter-gather list mapping imbalance 2020-02-19 19:53:02 +01:00
samples samples/bpf: Xdp_redirect_cpu fix missing tracepoint attach 2020-02-11 04:35:29 -08:00
scripts scripts/find-unused-docs: Fix massive false positives 2020-02-11 04:35:23 -08:00
security selinux: fall back to ref-walk if audit is required 2020-02-14 16:34:20 -05:00
sound ALSA: usb-audio: Add clock validity quirk for Denon MC7000/MCX8000 2020-02-19 19:52:57 +01:00
tools tools/power/acpi: fix compilation error 2020-02-14 16:34:15 -05:00
usr gen_initramfs_list.sh: fix 'bad variable name' error 2020-01-09 10:20:00 +01:00
virt KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer 2020-02-14 16:34:18 -05:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: correct entries for ISDN/mISDN section 2020-02-11 04:35:06 -08:00
Makefile Linux 5.4.20 2020-02-14 16:34:20 -05:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.