linux/Documentation/features/time/irq-time-acct/arch-support.txt

#
# Feature name:          irq-time-acct
#         Kconfig:       HAVE_IRQ_TIME_ACCOUNTING
#         description:   arch supports precise IRQ time accounting
#
    -----------------------
    |         arch |status|
    -----------------------
    |       alpha: |  ..  |
    |         arc: | TODO |
    |         arm: |  ok  |
    |       arm64: |  ok  |
    |    blackfin: | TODO |
    |         c6x: | TODO |
    |        cris: | TODO |
    |         frv: | TODO |
    |       h8300: | TODO |
    |     hexagon: | TODO |
    |        ia64: |  ..  |
    |        m32r: | TODO |
    |        m68k: | TODO |
    |       metag: | TODO |
    |  microblaze: | TODO |
    |        mips: |  ok  |
    |     mn10300: | TODO |
    |       nios2: | TODO |
    |    openrisc: | TODO |
    |      parisc: |  ..  |
    |     powerpc: |  ..  |
    |        s390: |  ..  |
    |       score: | TODO |
    |          sh: | TODO |
    |       sparc: |  ..  |
    |        tile: |  ..  |
    |          um: | TODO |
    |   unicore32: | TODO |
    |         x86: |  ok  |
    |      xtensa: |  ok  |
    -----------------------
Documentation/features/time: Add feature description and arch support status file for 'irq-time-acct' Cc: <linux-api@vger.kernel.org> Cc: <linux-arch@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> 2015-06-03 10:37:07 +00:00			`#`
			`# Feature name: irq-time-acct`
			`# Kconfig: HAVE_IRQ_TIME_ACCOUNTING`
			`# description: arch supports precise IRQ time accounting`
			`#`
			`-----------------------`
			`\| arch \|status\|`
			`-----------------------`
			`\| alpha: \| .. \|`
			`\| arc: \| TODO \|`
			`\| arm: \| ok \|`
arm64: enable HAVE_IRQ_TIME_ACCOUNTING arm64 relies on the arm_arch_timer for sched_clock, so we can select HAVE_IRQ_TIME_ACCOUNTING and have the core sched-clock code enable the feature at runtime based on the rate. Reported-by: Mario Smarduch <m.smarduch@samsung.com> Signed-off-by: Will Deacon <will.deacon@arm.com> 2015-11-23 15:12:59 +00:00			`\| arm64: \| ok \|`
Documentation/features/time: Add feature description and arch support status file for 'irq-time-acct' Cc: <linux-api@vger.kernel.org> Cc: <linux-arch@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> 2015-06-03 10:37:07 +00:00			`\| blackfin: \| TODO \|`
			`\| c6x: \| TODO \|`
			`\| cris: \| TODO \|`
			`\| frv: \| TODO \|`
			`\| h8300: \| TODO \|`
			`\| hexagon: \| TODO \|`
			`\| ia64: \| .. \|`
			`\| m32r: \| TODO \|`
			`\| m68k: \| TODO \|`
			`\| metag: \| TODO \|`
			`\| microblaze: \| TODO \|`
			`\| mips: \| ok \|`
			`\| mn10300: \| TODO \|`
			`\| nios2: \| TODO \|`
			`\| openrisc: \| TODO \|`
			`\| parisc: \| .. \|`
			`\| powerpc: \| .. \|`
			`\| s390: \| .. \|`
			`\| score: \| TODO \|`
			`\| sh: \| TODO \|`
			`\| sparc: \| .. \|`
			`\| tile: \| .. \|`
			`\| um: \| TODO \|`
			`\| unicore32: \| TODO \|`
			`\| x86: \| ok \|`
			`\| xtensa: \| ok \|`
			`-----------------------`