Re: [PATCH v9 09/26] arm64: Unmask PMR before going idle
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2019-01-22 15:25:32
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On Mon, Jan 21, 2019 at 03:33:28PM +0000, Julien Thierry wrote:
CPU does not received signals for interrupts with a priority masked by ICC_PMR_EL1. This means the CPU might not come back from a WFI instruction. Make sure ICC_PMR_EL1 does not mask interrupts when doing a WFI. Since the logic of cpu_do_idle is becoming a bit more complex than just two instructions, lets turn it from ASM to C. Signed-off-by: Julien Thierry <redacted> Suggested-by: Daniel Thompson <redacted> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <redacted>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel