From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicholas Piggin Subject: [PATCH 09/24] m68k: use asm-generic/mmu_context.h for no-op implementations Date: Tue, 28 Jul 2020 13:33:50 +1000 Message-ID: <20200728033405.78469-10-npiggin@gmail.com> References: <20200728033405.78469-1-npiggin@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727801AbgG1Dey (ORCPT ); Mon, 27 Jul 2020 23:34:54 -0400 In-Reply-To: <20200728033405.78469-1-npiggin@gmail.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arch@vger.kernel.org Cc: Nicholas Piggin , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Arnd Bergmann , Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org Cc: Geert Uytterhoeven Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Nicholas Piggin --- 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 cac9f289d1f6..56ae27322178 100644 --- a/arch/m68k/include/asm/mmu_context.h +++ b/arch/m68k/include/asm/mmu_context.h @@ -5,10 +5,6 @@ #include #include -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 #include +#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 -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 #endif /* CONFIG_MMU */ #endif /* __M68K_MMU_CONTEXT_H */ -- 2.23.0