From: "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com>
To: "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: [GIT PULL for-4.9 43/48] powerpc/perf: Add restrictions to PMC5 in power9 DD1
Date: Wed, 11 Oct 2017 00:45:29 +0000 [thread overview]
Message-ID: <20171011004512.7949-44-alexander.levin@verizon.com> (raw)
In-Reply-To: <20171011004512.7949-1-alexander.levin@verizon.com>
From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[ Upstream commit 8d911904f3ce412b20874a9c95f82009dcbb007c ]
PMC5 on POWER9 DD1 may not provide right counts in all
sampling scenarios, hence use PM_INST_DISP event instead
in PMC2 or PMC3 in preference.
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
arch/powerpc/perf/isa207-common.h | 4 ++++
arch/powerpc/perf/power9-pmu.c | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h
index 4d0a4e5017c2..8e6dd17fe603 100644
--- a/arch/powerpc/perf/isa207-common.h
+++ b/arch/powerpc/perf/isa207-common.h
@@ -201,6 +201,10 @@
CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \
CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL
+/*
+ * Lets restrict use of PMC5 for instruction counting.
+ */
+#define P9_DD1_TEST_ADDER (ISA207_TEST_ADDER | CNST_PMC_VAL(5))
/* Bits in MMCR1 for PowerISA v2.07 */
#define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1)))
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 8e9a81967ff8..9abcd8f65504 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -295,7 +295,7 @@ static struct power_pmu power9_pmu = {
.name = "POWER9",
.n_counter = MAX_PMU_COUNTERS,
.add_fields = ISA207_ADD_FIELDS,
- .test_adder = ISA207_TEST_ADDER,
+ .test_adder = P9_DD1_TEST_ADDER,
.compute_mmcr = isa207_compute_mmcr,
.config_bhrb = power9_config_bhrb,
.bhrb_filter_map = power9_bhrb_filter_map,
--
2.11.0
next prev parent reply other threads:[~2017-10-11 0:47 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-11 0:45 [GIT PULL for-4.9 00/48] Commits for v4.9 LTS Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 01/48] xen-netback: Use GFP_ATOMIC to allocate hash Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 02/48] locking/lockdep: Add nest_lock integrity test Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 03/48] watchdog: kempld: fix gcc-4.3 build Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 04/48] irqchip/crossbar: Fix incorrect type of local variables Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 06/48] mac80211_hwsim: check HWSIM_ATTR_RADIO_NAME length Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 05/48] initramfs: finish fput() before accessing any binary from initramfs Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 07/48] ALSA: hda: Add Geminilake HDMI codec ID Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 10/48] net/mlx4_en: fix overflow in mlx4_en_init_timestamp() Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 09/48] mac80211: fix power saving clients handling in iwlwifi Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 08/48] qed: Don't use attention PTT for configuring BW Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 11/48] staging: vchiq_2835_arm: Make cache-line-size a required DT property Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 12/48] netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 14/48] f2fs: do SSR for data when there is enough free space Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 15/48] sched/fair: Update rq clock before changing a task's CPU affinity Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 13/48] iio: adc: xilinx: Fix error handling Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 18/48] md/linear: shutup lockdep warnning Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 19/48] sparc64: Migrate hvcons irq to panicked cpu Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 17/48] f2fs: do not wait for writeback in write_begin Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 16/48] Btrfs: send, fix failure to rename top level inode due to name collision Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 22/48] mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 20/48] net/mlx4_core: Fix VF overwrite of module param which disables DMFS on new probed PFs Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 21/48] crypto: xts - Add ECB dependency Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 25/48] scsi: scsi_dh_emc: return success in clariion_std_inquiry() Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 26/48] ASoC: mediatek: add I2C dependency for CS42XX8 Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 23/48] ocfs2/dlmglue: prepare tracking logic to avoid recursive cluster lock Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 24/48] slub: do not merge cache if slub_debug contains a never-merge flag Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 30/48] qed: Reserve doorbell BAR space for present CPUs Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 29/48] qede: Prevent index problems in loopback test Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 28/48] net: mvpp2: release reference to txq_cpu[] entry after unmapping Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 27/48] drm/amdgpu: refuse to reserve io mem for split VRAM buffers Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 33/48] ceph: don't update_dentry_lease unless we actually got one Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 31/48] qed: Read queue state before releasing buffer Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 34/48] ceph: fix bogus endianness change in ceph_ioctl_set_layout Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 32/48] i2c: at91: ensure state is restored after suspending Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 36/48] uapi: fix linux/rds.h userspace compilation errors Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 35/48] ceph: clean up unsafe d_parent accesses in build_dentry_path Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 38/48] IB/hfi1: Use static CTLE with Preset 6 for integrated HFIs Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 37/48] uapi: fix linux/mroute6.h userspace compilation errors Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 41/48] hrtimer: Catch invalid clockids again Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` Levin, Alexander (Sasha Levin) [this message]
2017-10-11 0:45 ` [GIT PULL for-4.9 40/48] target/iscsi: Fix unsolicited data seq_end_offset calculation Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 42/48] nfsd/callback: Cleanup callback cred on shutdown Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 39/48] IB/hfi1: Allocate context data on memory node Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 47/48] EDAC, mce_amd: Print IPID and Syndrome on a separate line Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 44/48] drm/nouveau/gr/gf100-: fix ccache error logging Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 46/48] btmrvl: avoid double-disable_irq() race Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 45/48] regulator: core: Resolve supplies before disabling unused regulators Levin, Alexander (Sasha Levin)
2017-10-11 0:45 ` [GIT PULL for-4.9 48/48] cpufreq: CPPC: add ACPI_PROCESSOR dependency Levin, Alexander (Sasha Levin)
2017-10-19 13:13 ` [GIT PULL for-4.9 00/48] Commits for v4.9 LTS gregkh
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