github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-10 15:42:19 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
ea56536c35
linux/arch/powerpc/perf
History
Athira Rajeev b5d363ff17 powerpc/perf: Don't use perf_hw_context for trace IMC PMU 
[ Upstream commit 0198322379 ]

Trace IMC (In-Memory collection counters) in powerpc is useful for
application level profiling.

For trace_imc, presently task context (task_ctx_nr) is set to
perf_hw_context. But perf_hw_context should only be used for CPU PMU.
See commit 2665784850 ("perf/core: Verify we have a single
perf_hw_context PMU").

So for trace_imc, even though it is per thread PMU, it is preferred to
use sw_context in order to be able to do application level monitoring.
Hence change the task_ctx_nr to use perf_sw_context.

Fixes: 012ae24484 ("powerpc/perf: Trace imc PMU functions")
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Update subject & incorporate notes into change log, reflow comment]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220202041837.65968-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:40:14 +02:00
..
req-gen powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
8xx-pmu.c powerpc/8xx: Remove now unused TLB miss functions 2020-05-26 22:22:22 +10:00
bhrb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
callchain_32.c powerpc/perf: Consolidate perf_callchain_user_[64|32]() 2020-07-30 22:53:49 +10:00
callchain_64.c powerpc/perf: Consolidate perf_callchain_user_[64|32]() 2020-07-30 22:53:49 +10:00
callchain.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
callchain.h powerpc/perf: Consolidate perf_callchain_user_[64|32]() 2020-07-30 22:53:49 +10:00
core-book3s.c powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending 2022-02-01 17:25:46 +01:00
core-fsl-emb.c powerpc/perf: move perf irq/nmi handling details into traps.c 2022-01-27 10:54:05 +01:00
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/perf: Update Power PMU cache_events to u64 type 2020-07-22 21:56:40 +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: Move cpumask file to top folder of hv-24x7 driver 2020-08-21 23:35:27 +10:00
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/perf/hv-gpci: Fix starting index value 2020-10-07 22:34:48 +11:00
hv-gpci.c powerpc/perf/hv-gpci: Fix counter value parsing 2021-09-18 13:40:06 +02:00
hv-gpci.h powerpc/perf: consolidate GPCI hcall structs into asm/hvcall.h 2020-09-02 11:00:20 +10:00
imc-pmu.c powerpc/perf: Don't use perf_hw_context for trace IMC PMU 2022-04-08 14:40:14 +02:00
internal.h powerpc/perf: power10 Performance Monitoring support 2020-07-22 21:56:41 +10:00
isa207-common.c powerpc/perf: MMCR0 control for PMU registers under PMCC=00 2022-01-27 10:54:05 +01:00
isa207-common.h powerpc/perf: Fix Threshold Event Counter Multiplier width for P10 2020-12-30 11:53:53 +01:00
Makefile powerpc/perf: power10 Performance Monitoring support 2020-07-22 21:56:41 +10:00
mpc7450-pmu.c powerpc/perf: Update Power PMU cache_events to u64 type 2020-07-22 21:56:40 +10:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
power5-pmu.c powerpc/perf: Add declarations to fix sparse warnings 2020-09-18 19:59:43 +10:00
power5+-pmu.c powerpc/perf: Add declarations to fix sparse warnings 2020-09-18 19:59:43 +10:00
power6-pmu.c powerpc/perf: Add declarations to fix sparse warnings 2020-09-18 19:59:43 +10:00
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: Add declarations to fix sparse warnings 2020-09-18 19:59:43 +10:00
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: Add support for outputting extended regs in perf intr_regs 2020-08-17 13:11:22 +10:00
power10-events-list.h powerpc/perf: Fix the threshold event selection for memory events in power10 2021-05-14 09:50:42 +02:00
power10-pmu.c powerpc/perf: Fix to update radix_scope_qual in power10 2020-12-30 11:53:32 +01:00
ppc970-pmu.c powerpc/perf: Add declarations to fix sparse warnings 2020-09-18 19:59:43 +10:00