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3 commits

Author SHA1 Message Date
Will Deacon
1830902eb8 perf: arm_cspmu: Fix modular builds due to missing MODULE_LICENSE()s 
Building an arm64 allmodconfig target results in the following failure
from modpost:

  | ERROR: modpost: missing MODULE_LICENSE() in drivers/perf/arm_cspmu/arm_cspmu.o
  | ERROR: modpost: missing MODULE_LICENSE() in drivers/perf/arm_cspmu/nvidia_cspmu.o
  | make[1]: *** [scripts/Makefile.modpost:126: Module.symvers] Error 1
  | make: *** [Makefile:1944: modpost] Error 2

Add the missing MODULE_LICENSE() macros, following the license of the
source files and symbol exports.

Signed-off-by: Will Deacon <will@kernel.org>
 2022-11-15 18:24:03 +00:00
Besar Wicaksono
84481be716 perf: arm_cspmu: Add support for NVIDIA SCF and MCF attribute 
Add support for NVIDIA System Cache Fabric (SCF) and Memory Control
Fabric (MCF) PMU attributes for CoreSight PMU implementation in
NVIDIA devices.

Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>
Link: https://lore.kernel.org/r/20221111222330.48602-3-bwicaksono@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
 2022-11-15 13:48:08 +00:00
Besar Wicaksono
e37dfd6573 perf: arm_cspmu: Add support for ARM CoreSight PMU driver 
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>
 2022-11-15 13:48:08 +00:00