linux/arch/powerpc/perf
Sukadev Bhattiprolu e4f226b158 powerpc/perf/hv-gpci: Increase request buffer size
The GPCI hcall allows for a 4K buffer but we limit the buffer to 1K.
The problem with a 1K buffer is if a request results in returning
more values than can be accomodated in the 1K buffer the request will
fail.

The buffer we are using is currently allocated on the stack and hence
limited in size. Instead use a per-CPU 4K buffer like we do with 24x7
counters (hv-24x7.c).

While here, rename the macro GPCI_MAX_DATA_BYTES to HGPCI_MAX_DATA_BYTES
for consistency with 24x7 counters.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-02-10 14:30:56 +11:00
..
req-gen powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated 2015-02-02 17:56:39 +11:00
bhrb.S powerpc/perf: Add basic assembly code to read BHRB entries on POWER8 2013-04-26 16:11:11 +10:00
callchain.c powerpc/mm: Differentiate between hugetlb and THP during page walk 2015-10-12 15:30:09 +11:00
core-book3s.c perf/core: Drop PERF_EVENT_TXN 2015-09-13 11:27:30 +02:00
core-fsl-emb.c perf/powerpc: reset event hw state when adding it to the PMU 2015-01-29 23:44:18 -06:00
e500-pmu.c powerpc/perf: Add stalled-cycles events 2013-01-10 17:00:56 +11:00
e6500-pmu.c powerpc/perf: Add e6500 PMU driver 2013-08-07 18:38:04 -05:00
hv-24x7-catalog.h powerpc/perf/hv-24x7: parse catalog and populate sysfs with events 2015-02-02 17:56:38 +11:00
hv-24x7-domains.h powerpc/perf/hv-24x7: parse catalog and populate sysfs with events 2015-02-02 17:56:38 +11:00
hv-24x7.c powerpc, perf/powerpc/hv-24x7: Use PMU_TXN_READ interface 2015-09-13 11:27:29 +02:00
hv-24x7.h powerpc/perf/hv-24x7: Modify definition of request and result buffers 2015-04-11 20:49:21 +10:00
hv-common.c powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated 2015-02-02 17:56:39 +11:00
hv-common.h perf: define EVENT_DEFINE_RANGE_FORMAT_LITE helper 2015-02-02 17:56:38 +11:00
hv-gpci-requests.h powerpc/perf/hv-gpci: add the remaining gpci requests 2015-02-02 17:56:39 +11:00
hv-gpci.c powerpc/perf/hv-gpci: Increase request buffer size 2016-02-10 14:30:56 +11:00
hv-gpci.h powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated 2015-02-02 17:56:39 +11:00
Makefile powerpc/perf: Add kconfig option for hypervisor provided counters 2014-03-24 09:48:32 +11:00
mpc7450-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power4-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power5-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power5+-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power6-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power7-events-list.h powerpc/perf: Make some new raw event codes available in sysfs 2014-03-24 09:48:23 +11:00
power7-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00
power8-pmu.c powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8 2016-01-28 23:48:35 +11:00
ppc970-pmu.c powerpc/perf: Pass the struct perf_events down to compute_mmcr() 2014-07-28 14:30:47 +10:00