add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

 kernel/arch/arm64/kernel/entry.S
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@@ -646,11 +646,16 @@
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 #ifdef CONFIG_PREEMPT
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 	ldr	w24, [tsk, #TSK_TI_PREEMPT]	// get preempt count
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-	cbnz	w24, 1f				// preempt count != 0
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+	cbnz	w24, 2f				// preempt count != 0
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 	ldr	x0, [tsk, #TSK_TI_FLAGS]	// get flags
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-	tbz	x0, #TIF_NEED_RESCHED, 1f	// needs rescheduling?
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-	bl	el1_preempt
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+	tbnz	x0, #TIF_NEED_RESCHED, 1f	// needs rescheduling?
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+
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+	ldr	w24, [tsk, #TSK_TI_PREEMPT_LAZY] // get preempt lazy count
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+	cbnz	w24, 2f				// preempt lazy count != 0
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+	tbz	x0, #TIF_NEED_RESCHED_LAZY, 2f	// needs rescheduling?
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 1:
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+	bl	el1_preempt
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+2:
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 #endif
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 #ifdef CONFIG_TRACE_IRQFLAGS
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 	bl	trace_hardirqs_on
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@@ -664,6 +669,7 @@
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 1:	bl	preempt_schedule_irq		// irq en/disable is done inside
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 	ldr	x0, [tsk, #TSK_TI_FLAGS]	// get new tasks TI_FLAGS
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 	tbnz	x0, #TIF_NEED_RESCHED, 1b	// needs rescheduling?
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+	tbnz	x0, #TIF_NEED_RESCHED_LAZY, 1b	// needs rescheduling?
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 	ret	x24
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 #endif
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