Merge "drivers: GICv3: Add isb() before mb() per GICv3 requirement" (0fb411ab) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/irqchip/irq-gic-v3.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -123,6 +123,7 @@ static u64 __maybe_unused gic_read_iar(void)

		asm volatile("mrs_s %0, " __stringify(ICC_IAR1_EL1) : "=r" (irqstat));
		/* As per the architecture specification */
		isb();
		mb();
		return irqstat;
		}
		@@ -131,6 +132,7 @@ static void __maybe_unused gic_write_pmr(u64 val)
		{
		asm volatile("msr_s " __stringify(ICC_PMR_EL1) ", %0" : : "r" (val));
		/* As per the architecture specification */
		isb();
		mb();
		}

		@@ -150,6 +152,7 @@ static void __maybe_unused gic_write_sgi1r(u64 val)
		{
		asm volatile("msr_s " __stringify(ICC_SGI1R_EL1) ", %0" : : "r" (val));
		/* As per the architecture specification */
		isb();
		mb();
		}