diff mbox series

[03/34,v3] powerpc: Use CONFIG_PREEMPTION

Message ID 20191024160458.vlnf3wlcyjl2ich7@linutronix.de (mailing list archive)
State Not Applicable
Headers show
Series None | expand

Commit Message

Sebastian Andrzej Siewior Oct. 24, 2019, 4:04 p.m. UTC 
From: Thomas Gleixner <tglx@linutronix.de>

CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today
depends on CONFIG_PREEMPT.

Switch the entry code over to use CONFIG_PREEMPTION.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bigeasy: +Kconfig]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
v2…v3: Don't mention die.c changes in the description.
v1…v2: Remove the changes to die.c.

 arch/powerpc/Kconfig           | 2 +-
 arch/powerpc/kernel/entry_32.S | 4 ++--
 arch/powerpc/kernel/entry_64.S | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

Comments

Michael Ellerman Nov. 12, 2019, 12:38 p.m. UTC | #1 
Sebastian Andrzej Siewior <bigeasy@linutronix.de> writes:
> From: Thomas Gleixner <tglx@linutronix.de>
>
> CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
> Both PREEMPT and PREEMPT_RT require the same functionality which today
> depends on CONFIG_PREEMPT.
>
> Switch the entry code over to use CONFIG_PREEMPTION.
>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> [bigeasy: +Kconfig]
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
> v2…v3: Don't mention die.c changes in the description.
> v1…v2: Remove the changes to die.c.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers
diff mbox series

Patch

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 3e56c9c2f16ee..8ead8d6e1cbc8 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -106,7 +106,7 @@  config LOCKDEP_SUPPORT
 config GENERIC_LOCKBREAK
 	bool
 	default y
-	depends on SMP && PREEMPT
+	depends on SMP && PREEMPTION
 
 config GENERIC_HWEIGHT
 	bool
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index d60908ea37fb9..e1a4c39b83b86 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -897,7 +897,7 @@  user_exc_return:		/* r10 contains MSR_KERNEL here */
 	bne-	0b
 1:
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 	/* check current_thread_info->preempt_count */
 	lwz	r0,TI_PREEMPT(r2)
 	cmpwi	0,r0,0		/* if non-zero, just restore regs and return */
@@ -921,7 +921,7 @@  user_exc_return:		/* r10 contains MSR_KERNEL here */
 	 */
 	bl	trace_hardirqs_on
 #endif
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
 restore_kuap:
 	kuap_restore r1, r2, r9, r10, r0
 
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 6467bdab8d405..83733376533e8 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -840,7 +840,7 @@  _GLOBAL(ret_from_except_lite)
 	bne-	0b
 1:
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 	/* Check if we need to preempt */
 	andi.	r0,r4,_TIF_NEED_RESCHED
 	beq+	restore
@@ -871,7 +871,7 @@  _GLOBAL(ret_from_except_lite)
 	li	r10,MSR_RI
 	mtmsrd	r10,1		  /* Update machine state */
 #endif /* CONFIG_PPC_BOOK3E */
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
 
 	.globl	fast_exc_return_irq
 fast_exc_return_irq: