From: Nicholas Piggin <npiggin@gmail.com>
To: linux-arch@vger.kernel.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Arnd Bergmann <arnd@arndb.de>,
Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@lists.linux-m68k.org
Subject: [PATCH v2 09/23] m68k: use asm-generic/mmu_context.h for no-op implementations
Date: Thu, 27 Aug 2020 00:52:35 +1000 [thread overview]
Message-ID: <20200826145249.745432-10-npiggin@gmail.com> (raw)
In-Reply-To: <20200826145249.745432-1-npiggin@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/m68k/include/asm/mmu_context.h | 47 +++++------------------------
1 file changed, 8 insertions(+), 39 deletions(-)
diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
index 993fd7e37069..012e92204c1b 100644
--- a/arch/m68k/include/asm/mmu_context.h
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -5,10 +5,6 @@
#include <asm-generic/mm_hooks.h>
#include <linux/mm_types.h>
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
-
#ifdef CONFIG_MMU
#if defined(CONFIG_COLDFIRE)
@@ -58,6 +54,7 @@ static inline void get_mmu_context(struct mm_struct *mm)
/*
* We're finished using the context for an address space.
*/
+#define destroy_context destroy_context
static inline void destroy_context(struct mm_struct *mm)
{
if (mm->context != NO_CONTEXT) {
@@ -79,19 +76,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
set_context(tsk->mm->context, next->pgd);
}
-/*
- * After we have set current->mm to a new value, this activates
- * the context for the new mm so we see the new mappings.
- */
-static inline void activate_mm(struct mm_struct *active_mm,
- struct mm_struct *mm)
-{
- get_mmu_context(mm);
- set_context(mm->context, mm->pgd);
-}
-
-#define deactivate_mm(tsk, mm) do { } while (0)
-
#define prepare_arch_switch(next) load_ksp_mmu(next)
static inline void load_ksp_mmu(struct task_struct *task)
@@ -176,6 +160,7 @@ extern unsigned long get_free_context(struct mm_struct *mm);
extern void clear_context(unsigned long context);
/* set the context for a new task to unmapped */
+#define init_new_context init_new_context
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
@@ -210,8 +195,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
activate_context(tsk->mm);
}
-#define deactivate_mm(tsk, mm) do { } while (0)
-
+#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *prev_mm,
struct mm_struct *next_mm)
{
@@ -224,6 +208,7 @@ static inline void activate_mm(struct mm_struct *prev_mm,
#include <asm/page.h>
#include <asm/cacheflush.h>
+#define init_new_context init_new_context
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
@@ -231,8 +216,6 @@ static inline int init_new_context(struct task_struct *tsk,
return 0;
}
-#define destroy_context(mm) do { } while(0)
-
static inline void switch_mm_0230(struct mm_struct *mm)
{
unsigned long crp[2] = {
@@ -300,8 +283,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, str
}
}
-#define deactivate_mm(tsk,mm) do { } while (0)
-
+#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *prev_mm,
struct mm_struct *next_mm)
{
@@ -315,24 +297,11 @@ static inline void activate_mm(struct mm_struct *prev_mm,
#endif
-#else /* !CONFIG_MMU */
+#include <asm-generic/mmu_context.h>
-static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
- return 0;
-}
-
-
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
-{
-}
-
-#define destroy_context(mm) do { } while (0)
-#define deactivate_mm(tsk,mm) do { } while (0)
+#else /* !CONFIG_MMU */
-static inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
-{
-}
+#include <asm-generic/nommu_context.h>
#endif /* CONFIG_MMU */
#endif /* __M68K_MMU_CONTEXT_H */
--
2.23.0
next prev parent reply other threads:[~2020-08-26 14:53 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-26 14:52 [PATCH v2 00/23] Use asm-generic for mmu_context no-op functions Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 01/23] asm-generic: add generic MMU versions of mmu context functions Nicholas Piggin
2020-08-26 18:13 ` kernel test robot
2020-09-01 6:49 ` Mike Rapoport
2020-09-01 7:14 ` Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 02/23] alpha: use asm-generic/mmu_context.h for no-op implementations Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 03/23] arc: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 04/23] arm: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 05/23] arm64: " Nicholas Piggin
2020-08-26 15:25 ` Catalin Marinas
2020-08-26 16:20 ` Nicholas Piggin
2020-10-27 9:59 ` Naresh Kamboju
2020-10-27 15:08 ` Arnd Bergmann
2020-08-26 18:42 ` kernel test robot
2020-08-26 18:57 ` kernel test robot
2020-08-26 23:55 ` kernel test robot
2020-08-26 14:52 ` [PATCH v2 06/23] csky: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 07/23] hexagon: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 08/23] ia64: " Nicholas Piggin
2020-08-26 14:52 ` Nicholas Piggin [this message]
2020-08-27 9:33 ` [PATCH v2 09/23] m68k: " Geert Uytterhoeven
2020-09-01 6:23 ` Nicholas Piggin
2020-09-01 7:03 ` Geert Uytterhoeven
2020-09-01 7:50 ` Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 10/23] microblaze: " Nicholas Piggin
2020-08-31 14:15 ` Michal Simek
2020-09-01 6:15 ` Nicholas Piggin
2020-09-01 6:41 ` Michal Simek
2020-09-01 7:09 ` Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 11/23] mips: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 12/23] nds32: " Nicholas Piggin
2020-08-28 10:09 ` Greentime Hu
2020-08-26 14:52 ` [PATCH v2 13/23] nios2: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 14/23] openrisc: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 15/23] parisc: " Nicholas Piggin
2020-08-29 9:09 ` Helge Deller
2020-08-26 14:52 ` [PATCH v2 16/23] powerpc: " Nicholas Piggin
2020-09-01 7:30 ` Michael Ellerman
2020-08-26 14:52 ` [PATCH v2 17/23] riscv: " Nicholas Piggin
2020-08-26 16:42 ` Pekka Enberg
2020-08-26 14:52 ` [PATCH v2 18/23] s390: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 19/23] sh: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 20/23] sparc: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 21/23] um: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 22/23] x86: " Nicholas Piggin
2020-08-26 14:52 ` [PATCH v2 23/23] xtensa: " Nicholas Piggin
2020-08-26 20:12 ` [PATCH v2 00/23] Use asm-generic for mmu_context no-op functions Arnd Bergmann
2020-08-30 10:18 ` Mike Rapoport
2020-09-01 6:17 ` Nicholas Piggin
2020-09-01 6:54 ` Mike Rapoport
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