linux/linux-stable.git - Linux kernel stable tree

Age	Commit message (Collapse)	Author
2023-06-09	perf/arm_cspmu: Decouple APMT dependency	Robin Murphy
	The functional paths of the driver need not care about ACPI, so abstract the property of atomic doubleword access as its own flag (repacking the structure for a better fit). We also do not need to go poking directly at the APMT for standard resources which the ACPI layer has already dealt with, so deal with the optional MMIO page and interrupt in the normal firmware-agnostic manner. The few remaining portions of probing that are APMT-specific can still easily retrieve the APMT pointer as needed without us having to carry a duplicate copy around everywhere. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-and-tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Link: https://lore.kernel.org/r/88f97268603e1aa6016d178982a1dc2861f6770d.1685983270.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2022-11-15	perf: arm_cspmu: Add support for ARM CoreSight PMU driver	Besar Wicaksono
	Add support for ARM CoreSight PMU driver framework and interfaces. The driver provides generic implementation to operate uncore PMU based on ARM CoreSight PMU architecture. The driver also provides interface to get vendor/implementation specific information, for example event attributes and formating. The specification used in this implementation can be found below: * ACPI Arm Performance Monitoring Unit table: https://developer.arm.com/documentation/den0117/latest * ARM Coresight PMU architecture: https://developer.arm.com/documentation/ihi0091/latest Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Link: https://lore.kernel.org/r/20221111222330.48602-2-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>