linux_dsm_epyc7002/arch/arm64
Mark Rutland f1b36dcb5c arm64: pmuv3: handle !PMUv3 when probing
When probing via ACPI, we won't know up-front whether a CPU has a PMUv3
compatible PMU. Thus we need to consult ID registers during probe time.

This patch updates our PMUv3 probing code to test for the presence of
PMUv3 functionality before touching an PMUv3-specific registers, and
before updating the struct arm_pmu with PMUv3 data.

When a PMUv3-compatible PMU is not present, probing will return -ENODEV.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-04-11 16:29:54 +01:00
..
boot Merge tag 'juno-fixes-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/late 2017-03-02 23:08:31 +01:00
configs ARM: SoC defconfig updates for v4.11 2017-02-23 15:39:32 -08:00
crypto crypto: arm64/aes - add NEON/Crypto Extensions CBCMAC/CMAC/XCBC driver 2017-02-11 17:50:45 +08:00
include arm64: add function to get a cpu's MADT GICC table 2017-04-11 16:29:54 +01:00
kernel arm64: pmuv3: handle !PMUv3 when probing 2017-04-11 16:29:54 +01:00
kvm arm64: KVM: Survive unknown traps from guests 2017-03-07 14:50:46 +00:00
lib scripts/spelling.txt: add "overwritting" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
mm arm64: kasan: avoid bad virt_to_pfn() 2017-03-10 17:41:41 +00:00
net bpf: fix unlocking of jited image when module ronx not set 2017-02-21 13:30:14 -05:00
xen xen/privcmd: Add IOCTL_PRIVCMD_DM_OP 2017-02-14 15:13:43 -05:00
Kconfig arm64 fixes/cleanups: 2017-03-16 11:47:28 -07:00
Kconfig.debug arm64 updates for 4.11: 2017-02-22 10:46:44 -08:00
Kconfig.platforms arm64: add THUNDER2 processor family 2017-02-09 16:25:26 +01:00
Makefile arm64: Add detection code for broken .inst support in binutils 2016-12-06 15:54:21 +00:00