OpenCloudOS-Kernel/Documentation
Wu Hao 724142f8c4 fpga: dfl: fme: add performance reporting support
This patch adds support for performance reporting private feature
for FPGA Management Engine (FME). Now it supports several different
performance counters, including 'basic', 'cache', 'fabric', 'vtd'
and 'vtd_sip'. It allows user to use standard linux tools to access
these performance counters.

e.g. List all events by "perf list"

  perf list | grep fme

  dfl_fme0/cache_read_hit/                     [Kernel PMU event]
  dfl_fme0/cache_read_miss/                    [Kernel PMU event]
  ...

  dfl_fme0/fab_mmio_read/                      [Kernel PMU event]
  dfl_fme0/fab_mmio_write/                     [Kernel PMU event]
  ...

  dfl_fme0/fab_port_mmio_read,portid=?/        [Kernel PMU event]
  dfl_fme0/fab_port_mmio_write,portid=?/       [Kernel PMU event]
  ...

  dfl_fme0/vtd_port_devtlb_1g_fill,portid=?/   [Kernel PMU event]
  dfl_fme0/vtd_port_devtlb_2m_fill,portid=?/   [Kernel PMU event]
  ...

  dfl_fme0/vtd_sip_iotlb_1g_hit/               [Kernel PMU event]
  dfl_fme0/vtd_sip_iotlb_1g_miss/              [Kernel PMU event]
  ...

  dfl_fme0/clock                               [Kernel PMU event]
  ...

e.g. check increased counter value after run one application using
"perf stat" command.

 perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_mmio_write/ ./test

 Performance counter stats for './test':

                 1      dfl_fme0/fab_mmio_read/
                 2      dfl_fme0/fab_mmio_write/

       1.009496520 seconds time elapsed

Please note that fabric counters support both fab_* and fab_port_*, but
actually they are sharing one set of performance counters in hardware.
If user wants to monitor overall data events on fab_* then fab_port_*
can't be supported at the same time, see example below:

perf stat -e dfl_fme0/fab_mmio_read/,dfl_fme0/fab_port_mmio_write,portid=0/

 Performance counter stats for 'system wide':

                 0      dfl_fme0/fab_mmio_read/
   <not supported>      dfl_fme0/fab_port_mmio_write,portid=0/

       2.141064085 seconds time elapsed

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Link: https://lore.kernel.org/r/1587949583-12058-3-git-send-email-hao.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:49:28 +02:00
..
ABI fpga: dfl: fme: add performance reporting support 2020-04-28 15:49:28 +02:00
PCI pci-v5.7-changes 2020-04-03 14:25:02 -07:00
RCU doc: Add rcutorture scripting to torture.txt 2020-02-27 07:03:14 -08:00
accounting doc: cgroup: improve formatting of references 2020-03-02 12:57:03 -07:00
admin-guide USB fixes for 5.7-rc3 2020-04-26 11:22:01 -07:00
arm docs: arm: tcm: Fix a few typos 2020-02-19 02:42:21 -07:00
arm64 Documentation: arm64: fix amu.rst doc warnings 2020-04-23 17:05:22 +01:00
block block: Document genhd capability flags 2020-03-12 07:47:22 -06:00
bpf bpf: lsm: Add Documentation 2020-03-30 01:35:12 +02:00
cdrom docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
core-api docs: timekeeping: Use correct prototype for deprecated functions 2020-04-15 14:48:26 -06:00
cpu-freq docs: cpu-freq: convert cpufreq-stats.txt to ReST 2020-03-06 00:01:02 +01:00
crypto crypto: algapi - make unregistration functions return void 2019-12-20 14:58:35 +08:00
dev-tools linux-kselftest-kunit-5.7-rc1 2020-04-01 16:11:40 -07:00
devicetree USB fixes for 5.7-rc3 2020-04-26 11:22:01 -07:00
doc-guide Documentation: build warnings related to missing blank lines after explicit markups has been fixed 2020-02-05 10:30:03 -07:00
driver-api A handful of late-arriving fixes for the documentation tree. 2020-04-10 17:53:43 -07:00
fault-injection docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
fb fbdev: fbmem: allow overriding the number of bootup logos 2020-01-03 14:27:40 +01:00
features documentation: vm: Advertise support for pte_special in riscv 2020-02-19 02:41:01 -07:00
filesystems debugfs: remove return value of debugfs_create_u32() 2020-04-17 17:08:50 +02:00
firmware-guide Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst 2020-04-08 14:27:48 +02:00
firmware_class
fpga Documentation: fpga: dfl: add description for performance reporting support 2020-04-28 15:49:28 +02:00
gpu UAPI Changes: 2020-03-19 10:40:27 +10:00
hid docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
hwmon hwmon: (pmbus/isl68137) Fix up chip IDs 2020-04-12 15:12:51 -07:00
i2c i2c: convert SMBus alert setup function to return an ERRPTR 2020-03-10 12:19:52 +01:00
ia64 docs: add SPDX tags to new index files 2019-07-15 11:03:03 -03:00
ide docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
iio docs: add some documentation dirs to the driver-api book 2019-07-15 11:03:02 -03:00
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input Input: docs: fix spelling mistake "potocol" -> "protocol" 2019-08-06 11:24:49 -06:00
isdn isdn: capi: dead code removal 2019-12-11 09:12:38 +01:00
kbuild Documentation: kbuild: fix the section title format 2020-04-23 10:53:19 +09:00
kernel-hacking docs: locking: Drop :c:func: throughout 2020-03-20 17:16:24 -06:00
leds leds: core: Add support for composing LED class device names 2019-07-25 20:07:52 +02:00
livepatch livepatch: Documentation of the new API for tracking system state changes 2019-11-01 13:08:24 +01:00
locking Documentation/locking/locktypes: Minor copy editor fixes 2020-03-28 12:47:34 +01:00
m68k docs: README.buddha: convert to ReST and add to m68k book 2019-07-31 13:30:10 -06:00
maintainer Add a maintainer entry profile for documentation 2020-01-24 09:48:39 -07:00
media media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
mhi docs: Add documentation for MHI bus 2020-03-19 07:41:04 +01:00
mips docs: mips: remove no longer needed au1xxx_ide.rst documentation 2020-03-24 15:53:48 +01:00
misc-devices Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-04-01 14:47:40 -07:00
netlabel docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
networking Documentation: add documentation of ping_group_range 2020-04-22 19:29:26 -07:00
nios2 docs: nios2: add it to the main Documentation body 2019-07-31 13:31:51 -06:00
nvdimm docs: nvdimm: use ReST notation for subsection 2020-01-24 09:54:42 -07:00
openrisc openrisc: configs: Cleanup CONFIG_CROSS_COMPILE 2020-01-31 22:10:58 +09:00
parisc docs: parisc: convert to ReST and add to documentation body 2019-07-31 13:30:15 -06:00
pcmcia docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
power Merge branches 'pm-core', 'pm-sleep', 'pm-acpi' and 'pm-domains' 2020-03-30 14:46:58 +02:00
powerpc powerpc updates for 5.7 2020-04-05 11:12:59 -07:00
process Documentation/changes: Raise minimum supported binutils version to 2.23 2020-04-09 00:02:00 +09:00
riscv It has been a relatively quiet cycle for documentation, but there's still a 2020-01-29 15:27:31 -08:00
s390 Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
scheduler Documentation/scheduler: fix links in sched-stats 2019-10-29 04:35:41 -06:00
scsi SCSI misc on 20200402 2020-04-02 17:03:53 -07:00
security docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
sh docs: remove extra conf.py files 2019-07-17 06:57:52 -03:00
sound ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups 2020-03-31 10:54:06 +02:00
sparc docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
sphinx docs: Fix empty parallelism argument 2020-02-25 03:11:04 -07:00
sphinx-static doc-rst: Reduce CSS padding around Field 2019-10-02 10:03:06 -06:00
spi spi: docs: convert to ReST and add it to the kABI bookset 2019-07-31 14:13:13 -06:00
target docs: prevent warnings due to autosectionlabel 2020-03-20 17:01:29 -06:00
timers docs: add some directories to the main documentation index 2019-07-15 11:03:03 -03:00
trace New tracing features: 2020-04-05 10:36:18 -07:00
translations media updates for v5.7-rc1 2020-03-30 13:42:05 -07:00
usb usb: gadget: add raw-gadget interface 2020-03-15 11:34:48 +02:00
userspace-api docs: userspace: ioctl-number: remove mc146818rtc conflict 2020-02-13 11:42:02 -07:00
virt ARM: 2020-04-02 15:13:15 -07:00
vm mm/zswap: allow setting default status, compressor and allocator in Kconfig 2020-04-07 10:43:41 -07:00
w1 docs: w1: Fix a typo in omap-hdq.rst 2019-12-30 11:58:02 -07:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 Documentation/x86, efi/x86: Clarify EFI handover protocol and its requirements 2020-04-14 08:32:15 +02:00
xtensa docs: add arch doc directories to the index 2019-07-15 11:03:01 -03:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
COPYING-logo docs: logo.txt: rename it to COPYING-logo 2019-07-15 09:20:27 -03:00
Changes
CodingStyle
DMA-API-HOWTO.txt docs: DMA-API-HOWTO.txt: fix an unmarked code block 2019-07-15 09:20:24 -03:00
DMA-API.txt dma-mapping: remove dma_release_declared_memory 2019-09-04 11:13:19 +02:00
DMA-ISA-LPC.txt
DMA-attributes.txt dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag 2019-11-14 12:01:54 -04:00
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
Kconfig
Makefile Kbuild updates for v5.7 2020-03-31 16:03:39 -07:00
SubmittingPatches
asm-annotations.rst Documentation: Call out example SYM_FUNC_* usage as x86-specific 2020-01-16 12:53:16 -07:00
atomic_bitops.txt
atomic_t.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 16:12:03 -07:00
bus-virt-phys-mapping.txt
conf.py docs: conf.py: avoid thousands of duplicate label warning on Sphinx 2020-03-20 17:01:34 -06:00
crc32.txt
debugging-via-ohci1394.txt
digsig.txt
docutils.conf
dontdiff modpost: dump missing namespaces into a single modules.nsdeps file 2019-11-11 20:10:01 +09:00
futex-requeue-pi.txt
hwspinlock.txt hwspinlock: add the 'in_atomic' API 2019-06-29 21:08:14 -07:00
index.rst Char/Misc driver patches for 5.7-rc1 2020-04-03 13:22:40 -07:00
irqflags-tracing.txt
kprobes.txt
kref.txt docs: kref: Clarify the use of two kref_put() in example code 2020-02-25 03:39:10 -07:00
logo.gif
lzo.txt
mailbox.txt
memory-barriers.txt Documentation/memory-barriers: Fix typos 2020-02-27 07:03:14 -08:00
nommu-mmap.txt
percpu-rw-semaphore.txt
pi-futex.txt docs: locking: convert docs to ReST and rename to *.rst 2019-07-15 08:53:27 -03:00
preempt-locking.txt
rbtree.txt docs: rbtree.txt: fix Sphinx build warnings 2019-07-15 09:20:24 -03:00
remoteproc.txt remoteproc: Add elf64 support in elf loader 2020-03-25 22:29:40 -07:00
robust-futex-ABI.txt threads: Update PID limit comment according to futex UAPI change 2020-03-21 17:48:13 +01:00
robust-futexes.txt
rpmsg.txt
speculation.txt
static-keys.txt
tee.txt Documentation: tee: add AMD-TEE driver details 2020-01-04 13:49:51 +08:00
this_cpu_ops.txt
unaligned-memory-access.txt
xz.txt