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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v3 5/6] powerpc/nohash: Remove DEBUG_CLAMP_LAST_CONTEXT
Date: Thu,  3 Jun 2021 09:29:06 +0000 (UTC)	[thread overview]
Message-ID: <da81837b452e8b9f1657b529b9c3050dc10b9770.1622712515.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <4c54997edd3548fa54717915e7c6ebaf60f208c0.1622712515.git.christophe.leroy@csgroup.eu>

DEBUG_CLAMP_LAST_CONTEXT was there in the old days to reduce
number of contexts in order to ease debugging implementation
of context switching, but that's been quite stable during
years now.

As it is not user selectable, remove it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 arch/powerpc/mm/nohash/mmu_context.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/powerpc/mm/nohash/mmu_context.c b/arch/powerpc/mm/nohash/mmu_context.c
index 78369580b9ff..d9f590b9e636 100644
--- a/arch/powerpc/mm/nohash/mmu_context.c
+++ b/arch/powerpc/mm/nohash/mmu_context.c
@@ -21,7 +21,6 @@
  *     also clear mm->cpu_vm_mask bits when processes are migrated
  */
 
-//#define DEBUG_CLAMP_LAST_CONTEXT   31
 //#define DEBUG_HARDER
 
 /* We don't use DEBUG because it tends to be compiled in always nowadays
@@ -74,9 +73,7 @@ void *abatron_pteptrs[2];
  * -- BenH
  */
 #define FIRST_CONTEXT 1
-#ifdef DEBUG_CLAMP_LAST_CONTEXT
-#define LAST_CONTEXT DEBUG_CLAMP_LAST_CONTEXT
-#elif defined(CONFIG_PPC_8xx)
+#if defined(CONFIG_PPC_8xx)
 #define LAST_CONTEXT 16
 #elif defined(CONFIG_PPC_47x)
 #define LAST_CONTEXT 65535
-- 
2.25.0


WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 5/6] powerpc/nohash: Remove DEBUG_CLAMP_LAST_CONTEXT
Date: Thu,  3 Jun 2021 09:29:06 +0000 (UTC)	[thread overview]
Message-ID: <da81837b452e8b9f1657b529b9c3050dc10b9770.1622712515.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <4c54997edd3548fa54717915e7c6ebaf60f208c0.1622712515.git.christophe.leroy@csgroup.eu>

DEBUG_CLAMP_LAST_CONTEXT was there in the old days to reduce
number of contexts in order to ease debugging implementation
of context switching, but that's been quite stable during
years now.

As it is not user selectable, remove it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
 arch/powerpc/mm/nohash/mmu_context.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/powerpc/mm/nohash/mmu_context.c b/arch/powerpc/mm/nohash/mmu_context.c
index 78369580b9ff..d9f590b9e636 100644
--- a/arch/powerpc/mm/nohash/mmu_context.c
+++ b/arch/powerpc/mm/nohash/mmu_context.c
@@ -21,7 +21,6 @@
  *     also clear mm->cpu_vm_mask bits when processes are migrated
  */
 
-//#define DEBUG_CLAMP_LAST_CONTEXT   31
 //#define DEBUG_HARDER
 
 /* We don't use DEBUG because it tends to be compiled in always nowadays
@@ -74,9 +73,7 @@ void *abatron_pteptrs[2];
  * -- BenH
  */
 #define FIRST_CONTEXT 1
-#ifdef DEBUG_CLAMP_LAST_CONTEXT
-#define LAST_CONTEXT DEBUG_CLAMP_LAST_CONTEXT
-#elif defined(CONFIG_PPC_8xx)
+#if defined(CONFIG_PPC_8xx)
 #define LAST_CONTEXT 16
 #elif defined(CONFIG_PPC_47x)
 #define LAST_CONTEXT 65535
-- 
2.25.0


  parent reply	other threads:[~2021-06-03  9:29 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03  9:29 [PATCH v3 1/6] powerpc/nohash: Refactor update of BDI2000 pointers in switch_mmu_context() Christophe Leroy
2021-06-03  9:29 ` Christophe Leroy
2021-06-03  9:29 ` [PATCH v3 2/6] powerpc/nohash: Convert set_context() to C Christophe Leroy
2021-06-03  9:29   ` Christophe Leroy
2021-06-03  9:29 ` [PATCH v3 3/6] powerpc/nohash: Remove CONFIG_SMP #ifdefery in mmu_context.h Christophe Leroy
2021-06-03  9:29   ` Christophe Leroy
2021-06-03  9:29 ` [PATCH v3 4/6] powerpc/nohash: Remove DEBUG_MAP_CONSISTENCY Christophe Leroy
2021-06-03  9:29   ` Christophe Leroy
2021-06-03  9:29 ` Christophe Leroy [this message]
2021-06-03  9:29   ` [PATCH v3 5/6] powerpc/nohash: Remove DEBUG_CLAMP_LAST_CONTEXT Christophe Leroy
2021-06-03  9:29 ` [PATCH v3 6/6] powerpc/nohash: Remove DEBUG_HARDER Christophe Leroy
2021-06-03  9:29   ` Christophe Leroy
2021-06-18  3:51 ` [PATCH v3 1/6] powerpc/nohash: Refactor update of BDI2000 pointers in switch_mmu_context() Michael Ellerman

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