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authorFrederic Weisbecker <frederic@kernel.org>2020-12-02 12:57:29 +0100
committerThomas Gleixner <tglx@linutronix.de>2020-12-02 20:20:04 +0100
commit2b91ec9f551b56751cde48792f1c0a1130358844 (patch)
treee43dcbee5218a9c9e72735b3000a95d04288d37b /arch/Kconfig
parent7197688b2006357da75a014e0a76be89ca9c2d46 (diff)
s390/vtime: Use the generic IRQ entry accounting
s390 has its own version of IRQ entry accounting because it doesn't account the idle time the same way the other architectures do. Only the actual idle sleep time is accounted as idle time, the rest of the idle task execution is accounted as system time. Make the generic IRQ entry accounting aware of architectures that have their own way of accounting idle time and convert s390 to use it. This prepares s390 to get involved in further consolidations of IRQ time accounting. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201202115732.27827-3-frederic@kernel.org
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 56b6ccc0e32d..0f151b49c7b7 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -627,6 +627,12 @@ config HAVE_TIF_NOHZ
config HAVE_VIRT_CPU_ACCOUNTING
bool
+config HAVE_VIRT_CPU_ACCOUNTING_IDLE
+ bool
+ help
+ Architecture has its own way to account idle CPU time and therefore
+ doesn't implement vtime_account_idle().
+
config ARCH_HAS_SCALED_CPUTIME
bool
@@ -641,7 +647,6 @@ config HAVE_VIRT_CPU_ACCOUNTING_GEN
some 32-bit arches may require multiple accesses, so proper
locking is needed to protect against concurrent accesses.
-
config HAVE_IRQ_TIME_ACCOUNTING
bool
help