linux-toradex.git/drivers/perf/hisilicon, branch v6.3-rc3

drivers/perf: hisi: Extract initialization of "cpa_pmu->pmu"

2023-01-19T18:30:21+00:00

Use hisi_pmu_init() function to simplify initialization of "cpa_pmu->pmu".

Signed-off-by: Junhao He 
Link: https://lore.kernel.org/r/20230119100307.3660-4-hejunhao3@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Simplify the parameters of hisi_pmu_init()

2023-01-19T18:30:21+00:00

Use "hisi_pmu" to simplify the parameter list for the hisi_pmu_init()
function.

Signed-off-by: Junhao He 
Link: https://lore.kernel.org/r/20230119100307.3660-3-hejunhao3@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Advertise the PERF_PMU_CAP_NO_EXCLUDE capability

2023-01-19T18:30:20+00:00

Missed initialization the variable of pmu::capabilities when extract
the initialization code of hisi_pmu->pmu into a function.

HISI UNCORE PMU drivers counters that not support context exclusion.
So we have to advertise the PERF_PMU_CAP_NO_EXCLUDE capability.
This ensures that perf will prevent us from handling events where
any exclusion flags are set.

Signed-off-by: Junhao He 
Link: https://lore.kernel.org/r/20230119100307.3660-2-hejunhao3@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Add TLP filter support

2022-11-29T14:30:55+00:00

The PMU support to filter the TLP when counting the bandwidth with below
options:

- only count the TLP headers
- only count the TLP payloads
- count both TLP headers and payloads

In the current driver it's default to count the TLP payloads only, which
will have an implicity side effects that on the traffic only have header
only TLPs, we'll get no data.

Make this user configuration through "len_mode" parameter and make it
default to count both TLP headers and payloads when user not specified.
Also update the documentation for it.

Reviewed-by: Jonathan Cameron 
Signed-off-by: Yicong Yang 
Link: https://lore.kernel.org/r/20221117084136.53572-5-yangyicong@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Fix some event id for hisi-pcie-pmu

2022-11-29T14:30:54+00:00

Some event id of hisi-pcie-pmu is incorrect, fix them.

Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU")
Reviewed-by: Jonathan Cameron 
Signed-off-by: Yicong Yang 
Link: https://lore.kernel.org/r/20221117084136.53572-2-yangyicong@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: add driver for HNS3 PMU

2022-07-06T10:25:53+00:00

HNS3(HiSilicon Network System 3) PMU is RCiEP device in HiSilicon SoC NIC,
supports collection of performance statistics such as bandwidth, latency,
packet rate and interrupt rate.

NIC of each SICL has one PMU device for it. Driver registers each PMU
device to perf, and exports information of supported events, filter mode of
each event, bdf range, hardware clock frequency, identifier and so on via
sysfs.

Each PMU device has its own registers of control, counters and interrupt,
and it supports 8 hardware events, each hardward event has its own
registers for configuration, counters and interrupt.

Filter options contains:
config       - select event
port         - select physical port of nic
tc           - select tc(must be used with port)
func         - select PF/VF
queue        - select queue of PF/VF(must be used with func)
intr         - select interrupt number(must be used with func)
global       - select all functions of IO DIE

Signed-off-by: Guangbin Huang 
Reviewed-by: John Garry 
Reviewed-by: Shaokun Zhang 
Link: https://lore.kernel.org/r/20220628063419.38514-3-huangguangbin2@huawei.com
Signed-off-by: Will Deacon

perf: hisi: Extract hisi_pmu_init

2022-06-27T10:14:54+00:00

Extract the initialization code of hisi_pmu->pmu into a function

Signed-off-by: Chen Jun 
Link: https://lore.kernel.org/r/20220516131601.48383-1-chenjun102@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Add Support for CPA PMU

2022-05-06T14:14:31+00:00

On HiSilicon Hip09 platform, there is a CPA (Coherency Protocol Agent) on
each SICL (Super IO Cluster) which implements packet format translation,
route parsing and traffic statistics.

CPA PMU has 8 PMU counters and interrupt is supported to handle counter
overflow. Let's support its driver under the framework of HiSilicon PMU
driver.

Signed-off-by: Qi Liu 
Reviewed-by: John Garry 
Reviewed-by: Shaokun Zhang 
Link: https://lore.kernel.org/r/20220415102352.6665-3-liuqi115@huawei.com
Signed-off-by: Will Deacon

drivers/perf: hisi: Associate PMUs in SICL with CPUs online

2022-05-06T14:14:31+00:00

If a PMU is in a SICL (Super IO cluster), it is not appropriate to
associate this PMU with a CPU die. So we associate it with all CPUs
online, rather than CPUs in the nearest SCCL.

As the firmware of Hip09 platform hasn't been published yet, change
of PMU driver will not influence backwards compatibility between
driver and firmware.

Signed-off-by: Qi Liu 
Reviewed-by: John Garry 
Link: https://lore.kernel.org/r/20220415102352.6665-2-liuqi115@huawei.com
Signed-off-by: Will Deacon

perf: replace bitmap_weight with bitmap_empty where appropriate

2022-02-15T14:38:57+00:00

In some places, drivers/perf code calls bitmap_weight() to check if any
bit of a given bitmap is set. It's better to use bitmap_empty() in that
case because bitmap_empty() stops traversing the bitmap as soon as it
finds first set bit, while bitmap_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov 
Acked-by: Mark Rutland 
Link: https://lore.kernel.org/r/20220210224933.379149-13-yury.norov@gmail.com
Signed-off-by: Will Deacon