From b585e8551b352cee95cf060b7eddc76d16e6120a Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Thu, 26 Jul 2012 11:02:24 +0000 Subject: sparc32: centralize all mmu context handling in srmmu.c Signed-off-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc/include/asm/mmu_context_32.h | 8 +++----- arch/sparc/include/asm/pgtable_32.h | 32 -------------------------------- 2 files changed, 3 insertions(+), 37 deletions(-) (limited to 'arch/sparc/include/asm') diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h index 01456c900720..2df2a9be8f6d 100644 --- a/arch/sparc/include/asm/mmu_context_32.h +++ b/arch/sparc/include/asm/mmu_context_32.h @@ -9,14 +9,12 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { } -/* - * Initialize a new mmu context. This is invoked when a new +/* Initialize a new mmu context. This is invoked when a new * address space instance (unique or shared) is instantiated. */ -#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0) +int init_new_context(struct task_struct *tsk, struct mm_struct *mm); -/* - * Destroy a dead context. This occurs when mmput drops the +/* Destroy a dead context. This occurs when mmput drops the * mm_users count to zero, the mmaps have been released, and * all the page tables have been flushed. Our job is to destroy * any remaining processor-specific state. diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h index c704f949b7ef..97a48807361e 100644 --- a/arch/sparc/include/asm/pgtable_32.h +++ b/arch/sparc/include/asm/pgtable_32.h @@ -79,8 +79,6 @@ extern unsigned long ptr_in_current_pgd; #define __S110 PAGE_SHARED #define __S111 PAGE_SHARED -extern int num_contexts; - /* First physical page can be anywhere, the following is needed so that * va-->pa and vice versa conversions work properly without performance * hit for all __pa()/__va() operations. @@ -399,36 +397,6 @@ static inline pte_t pgoff_to_pte(unsigned long pgoff) */ #define PTE_FILE_MAX_BITS 24 -/* - */ -struct ctx_list { - struct ctx_list *next; - struct ctx_list *prev; - unsigned int ctx_number; - struct mm_struct *ctx_mm; -}; - -extern struct ctx_list *ctx_list_pool; /* Dynamically allocated */ -extern struct ctx_list ctx_free; /* Head of free list */ -extern struct ctx_list ctx_used; /* Head of used contexts list */ - -#define NO_CONTEXT -1 - -static inline void remove_from_ctx_list(struct ctx_list *entry) -{ - entry->next->prev = entry->prev; - entry->prev->next = entry->next; -} - -static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry) -{ - entry->next = head; - (entry->prev = head->prev)->next = entry; - head->prev = entry; -} -#define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry) -#define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry) - static inline unsigned long __get_phys (unsigned long addr) { -- cgit v1.2.3