linux_dsm_epyc7002/arch/arm64
Suzuki K Poulose c132079053 arm64: perf: Add support for chaining event counters
Add support for 64bit event by using chained event counters
and 64bit cycle counters.

PMUv3 allows chaining a pair of adjacent 32-bit counters, effectively
forming a 64-bit counter. The low/even counter is programmed to count
the event of interest, and the high/odd counter is programmed to count
the CHAIN event, taken when the low/even counter overflows.

For CPU cycles, when 64bit mode is requested, the cycle counter
is used in 64bit mode. If the cycle counter is not available,
falls back to chaining.

Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-07-10 18:19:30 +01:00
..
boot ARM: SoC: late updates 2018-06-11 18:19:45 -07:00
configs ARM: SoC platform updates 2018-06-11 17:49:09 -07:00
crypto crypto: clarify licensing of OpenSSL asm code 2018-05-31 00:13:44 +08:00
include docs: Fix some broken references 2018-06-15 18:10:01 -03:00
kernel arm64: perf: Add support for chaining event counters 2018-07-10 18:19:30 +01:00
kvm Small update for KVM. 2018-06-12 11:34:04 -07:00
lib arm64: export tishift functions to modules 2018-05-21 19:00:48 +01:00
mm treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX 2018-06-15 07:55:25 +09:00
net bpf, arm64: save 4 bytes in prologue when ebpf insns came from cbpf 2018-05-14 19:11:45 -07:00
xen arm64: mm: Add additional parameter to uaccess_ttbr0_disable 2018-01-17 13:57:49 +01:00
Kconfig Kbuild: rename HAVE_CC_STACKPROTECTOR config variable 2018-06-15 07:15:28 +09:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms arm64: dts: renesas: Add Renesas R8A77990 Kconfig support 2018-05-16 10:44:01 +02:00
Makefile arm64: move GCC version check for ARCH_SUPPORTS_INT128 to Kconfig 2018-06-08 18:56:02 +09:00