Re: [PATCH 03/34 v3] powerpc: Use CONFIG_PREEMPTION

2019-11-12 Thread Michael Ellerman
Sebastian Andrzej Siewior  writes:
> From: Thomas Gleixner 
>
> 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 
> Cc: Paul Mackerras 
> Cc: Michael Ellerman 
> Cc: linuxppc-dev@lists.ozlabs.org
> Signed-off-by: Thomas Gleixner 
> [bigeasy: +Kconfig]
> Signed-off-by: Sebastian Andrzej Siewior 
> ---
> v2…v3: Don't mention die.c changes in the description.
> v1…v2: Remove the changes to die.c.

Acked-by: Michael Ellerman 

cheers


[PATCH 03/34 v3] powerpc: Use CONFIG_PREEMPTION

2019-10-24 Thread Sebastian Andrzej Siewior
From: Thomas Gleixner 

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 
Cc: Paul Mackerras 
Cc: Michael Ellerman 
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Thomas Gleixner 
[bigeasy: +Kconfig]
Signed-off-by: Sebastian Andrzej Siewior 
---
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(-)

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:
-- 
2.23.0