Re: [PATCH 32/33] arm_mpam: Add kunit test for bitmap reset
From: James Morse <james.morse@arm.com>
Date: 2025-09-10 19:31:04
Also in:
linux-acpi, linux-arm-kernel, lkml
Hi Ben, On 29/08/2025 17:56, Ben Horgan wrote:
On 8/22/25 16:30, James Morse wrote:quoted
The bitmap reset code has been a source of bugs. Add a unit test. This currently has to be built in, as the rest of the driver is builtin.
quoted
diff --git a/drivers/resctrl/Kconfig b/drivers/resctrl/Kconfig index dff7b87280ab..f5e0609975e4 100644 --- a/drivers/resctrl/Kconfig +++ b/drivers/resctrl/Kconfig@@ -4,8 +4,21 @@ config ARM64_MPAM_DRIVER bool "MPAM driver for System IP, e,g. caches and memory controllers" depends on ARM64_MPAM && EXPERT +menu "ARM64 MPAM driver options" + config ARM64_MPAM_DRIVER_DEBUG bool "Enable debug messages from the MPAM driver." depends on ARM64_MPAM_DRIVER help Say yes here to enable debug messages from the MPAM driver. + +config MPAM_KUNIT_TEST + bool "KUnit tests for MPAM driver " if !KUNIT_ALL_TESTS + depends on KUNIT=y
It depends on ARM64_MPAM_DRIVER as well.
Yeah, the kbuild robot had some fun with all this. Turns out ARM64_MPAM is undefined on non-ARM64, which means its dependencies disappear. All this is now under an 'if ARM64_MPAM_DRIVER' and the driver symbol depends on ARM64 && ARM64_MPAM... Thanks, James