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Commit a67c543a authored by Madhavan Srinivasan's avatar Madhavan Srinivasan Committed by Michael Ellerman
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powerpc/64: Implement and use soft_enabled_set_return API 



Add a new wrapper function, soft_enabled_set_return(), added to do the
paca->soft_enabled updates requiring a set-return.

Signed-off-by: default avatarMadhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent e0b5687b

arch/powerpc/include/asm/hw_irq.h

+15 −10
Original line number Diff line number Diff line
@@ -76,6 +76,20 @@ static inline notrace void soft_enabled_set(unsigned long enable) 
		: "memory");

}



static inline notrace unsigned long soft_enabled_set_return(unsigned long enable)

{

	unsigned long flags;



	asm volatile(

		"lbz %0,%1(13); stb %2,%1(13)"

		: "=&r" (flags)

		: "i" (offsetof(struct paca_struct, soft_enabled)),

		  "r" (enable)

		: "memory");



	return flags;

}



static inline unsigned long arch_local_save_flags(void)

{

	return soft_enabled_return();
@@ -95,16 +109,7 @@ static inline void arch_local_irq_enable(void) 


static inline unsigned long arch_local_irq_save(void)

{

	unsigned long flags;



	asm volatile(

		"lbz %0,%1(13); stb %2,%1(13)"

		: "=&r" (flags)

		: "i" (offsetof(struct paca_struct, soft_enabled)),

		  "r" (IRQS_DISABLED)

		: "memory");



	return flags;

	return soft_enabled_set_return(IRQS_DISABLED);

}



static inline bool arch_irqs_disabled_flags(unsigned long flags)