diff options
Diffstat (limited to 'include/asm-sparc64/mmu_context.h')
| -rw-r--r-- | include/asm-sparc64/mmu_context.h | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/include/asm-sparc64/mmu_context.h b/include/asm-sparc64/mmu_context.h index 34640a370ab..0dffb4ce8a1 100644 --- a/include/asm-sparc64/mmu_context.h +++ b/include/asm-sparc64/mmu_context.h @@ -19,36 +19,8 @@ extern unsigned long tlb_context_cache; extern unsigned long mmu_context_bmap[]; extern void get_new_mmu_context(struct mm_struct *mm); - -/* Initialize a new mmu context. This is invoked when a new - * address space instance (unique or shared) is instantiated. - * This just needs to set mm->context to an invalid context. - */ -#define init_new_context(__tsk, __mm) \ -({ unsigned long __pg = get_zeroed_page(GFP_KERNEL); \ - (__mm)->context.sparc64_ctx_val = 0UL; \ - (__mm)->context.sparc64_tsb = \ - (unsigned long *) __pg; \ - (__pg ? 0 : -ENOMEM); \ -}) - - -/* 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, and in the sparc64 - * case this just means freeing up the mmu context ID held by - * this task if valid. - */ -#define destroy_context(__mm) \ -do { free_page((unsigned long)(__mm)->context.sparc64_tsb); \ - spin_lock(&ctx_alloc_lock); \ - if (CTX_VALID((__mm)->context)) { \ - unsigned long nr = CTX_NRBITS((__mm)->context); \ - mmu_context_bmap[nr>>6] &= ~(1UL << (nr & 63)); \ - } \ - spin_unlock(&ctx_alloc_lock); \ -} while(0) +extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); +extern void destroy_context(struct mm_struct *mm); extern unsigned long tsb_context_switch(unsigned long pgd_pa, unsigned long *tsb); |