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irq_work is triggered via an IPI, but the IPI infrastructure is not
included in uniprocessor kernels. As a result, irq_work never runs.
Fall back to the tick-based irq_work implementation on uniprocessor
configurations.
Fixes: 298447928b ("riscv: Support irq_work via self IPIs")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220430030025.58405-1-samuel@sholland.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
11 lines
263 B
C
11 lines
263 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_RISCV_IRQ_WORK_H
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#define _ASM_RISCV_IRQ_WORK_H
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static inline bool arch_irq_work_has_interrupt(void)
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{
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return IS_ENABLED(CONFIG_SMP);
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}
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extern void arch_irq_work_raise(void);
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#endif /* _ASM_RISCV_IRQ_WORK_H */
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