Nathan Lynch 3212606148 powerpc/perf/hv-24x7: add missing RTAS retry status handling ...

[ Upstream commit cc4b26eab1 ]

The ibm,get-system-parameter RTAS function may return -2 or 990x,
which indicate that the caller should try again. read_24x7_sys_info()
ignores this, allowing transient failures in reporting processor
module information.

Move the RTAS call into a coventional rtas_busy_delay()-based loop,
along with the parsing of results on success.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Fixes: 8ba2142673 ("powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-2-26929c8cce78@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-03-01 13:21:51 +01:00

..

req-gen

powerpc/hv-gpci: Fix hv_gpci event list

2022-12-31 13:14:35 +01:00

8xx-pmu.c

powerpc/ppc-opcode: Add PPC_RAW_MFSPR()

2020-12-09 23:48:13 +11:00

bhrb.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

callchain_32.c

powerpc/vdso: Retrieve sigtramp offsets at buildtime

2020-12-04 01:01:17 +11:00

callchain_64.c

powerpc/64s/hash: Make hash faults work in NMI context

2022-04-13 20:59:07 +02:00

callchain.c

powerpc/perf: callchain validate kernel stack pointer bounds

2022-12-31 13:14:35 +01:00

callchain.h

powerpc/64s/hash: Make hash faults work in NMI context

2022-04-13 20:59:07 +02:00

core-book3s.c

powerpc/perf: Fix disabling BHRB and instruction sampling

2023-11-28 16:56:26 +00:00

core-fsl-emb.c

powerpc/perf: Convert fsl_emb notifier to state machine callbacks

2023-09-19 12:22:41 +02:00

e500-pmu.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

e6500-pmu.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

generic-compat-pmu.c

powerpc/pmu: Make the generic compat PMU use the architected events

2021-06-25 14:47:20 +10:00

hv-24x7-catalog.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hv-24x7-domains.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hv-24x7.c

powerpc/perf/hv-24x7: add missing RTAS retry status handling

2024-03-01 13:21:51 +01:00

hv-24x7.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hv-common.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hv-common.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

hv-gpci-requests.h

powerpc/hv-gpci: Fix hv_gpci event list

2022-12-31 13:14:35 +01:00

hv-gpci.c

powerpc/hv-gpci: Fix hv_gpci event list

2022-12-31 13:14:35 +01:00

hv-gpci.h

powerpc/hv-gpci: Fix hv_gpci event list

2022-12-31 13:14:35 +01:00

imc-pmu.c

powerpc/imc-pmu: Add a null pointer check in update_events_in_group()

2024-01-25 14:52:33 -08:00

internal.h

powerpc/perf: power10 Performance Monitoring support

2020-07-22 21:56:41 +10:00

isa207-common.c

powerpc/perf: Fix the threshold compare group constraint for power9

2022-06-09 10:23:12 +02:00

isa207-common.h

powerpc/perf: Fix sampled instruction type for larx/stcx

2021-04-23 01:38:02 +10:00

Makefile

powerpc/perf: Fix 32bit compile

2022-05-09 09:14:40 +02:00

mpc7450-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00

perf_regs.c

powerpc/perf: Expose Performance Monitor Counter SPR's as part of extended regs

2021-02-09 01:09:44 +11:00

power5-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00

power5+-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00

power6-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00

power7-events-list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

power7-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00

power8-events-list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

power8-pmu.c

powerpc/perf: Update Power PMU cache_events to u64 type

2020-07-22 21:56:40 +10:00

power9-events-list.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

power9-pmu.c

powerpc/perf: Fix power9 event alternatives

2022-04-27 14:38:59 +02:00

power10-events-list.h

powerpc/perf: Fix cycles/instructions as PM_CYC/PM_INST_CMPL in power10

2021-11-18 19:16:52 +01:00

power10-pmu.c

powerpc/perf: Fix power10 event alternatives

2022-04-27 14:38:59 +02:00

ppc970-pmu.c

powerpc/perf: Adds support for programming of Thresholding in P10

2021-02-11 23:35:36 +11:00