https://github.com/torvalds/linux
Revision 3688b0db5c331f4ec3fa5eb9f670a4b04f530700 authored by Grygorii Strashko on 08 April 2020, 19:15:32 UTC, committed by Marc Zyngier on 17 April 2020, 07:59:28 UTC
The ti_sci_inta_irq_handler() does not take into account INTA IRQs state
(masked/unmasked) as it uses INTA_STATUS_CLEAR_j register to get INTA IRQs
status, which provides raw status value.
This causes hard IRQ handlers to be called or threaded handlers to be
scheduled many times even if corresponding INTA IRQ is masked.
Above, first of all, affects the LEVEL interrupts processing and causes
unexpected behavior up the system stack or crash.
Fix it by using the Interrupt Masked Status INTA_STATUSM_j register which
provides masked INTA IRQs status.
Fixes: 9f1463b86c13 ("irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20200408191532.31252-1-grygorii.strashko@ti.com
Cc: stable@vger.kernel.org
1 parent edfc23f
Tip revision: 3688b0db5c331f4ec3fa5eb9f670a4b04f530700 authored by Grygorii Strashko on 08 April 2020, 19:15:32 UTC
irqchip/ti-sci-inta: Fix processing of masked irqs
irqchip/ti-sci-inta: Fix processing of masked irqs
Tip revision: 3688b0d
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| Makefile | -rw-r--r-- | 59.9 KB |
| README | -rw-r--r-- | 727 bytes |
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