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| author | Helge Deller <deller@gmx.de> | 2015-02-17 00:21:00 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2015-02-17 00:35:06 +0300 |
| commit | c78c2b7e0409feed41ba1b5e84bff5d901c9b65f (patch) | |
| tree | 66870948164f863cfc0c09e3c2de124ae94b71d7 /arch/parisc/mm | |
| parent | 863722e856e64dae0e252b6bb546737c6c5626ce (diff) | |
| download | linux-c78c2b7e0409feed41ba1b5e84bff5d901c9b65f.tar.xz | |
parisc: hpux - Remove hpux gateway page
Drop code to create HP-UX gateway page and syscall entry code.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/mm')
| -rw-r--r-- | arch/parisc/mm/init.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 0bef864264c0..15dbe81cf5f3 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -750,78 +750,6 @@ static void __init gateway_init(void) PAGE_SIZE, PAGE_GATEWAY, 1); } -#ifdef CONFIG_HPUX -void -map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm) -{ - pgd_t *pg_dir; - pmd_t *pmd; - pte_t *pg_table; - unsigned long start_pmd; - unsigned long start_pte; - unsigned long address; - unsigned long hpux_gw_page_addr; - /* FIXME: This is 'const' in order to trick the compiler - into not treating it as DP-relative data. */ - extern void * const hpux_gateway_page; - - hpux_gw_page_addr = HPUX_GATEWAY_ADDR & PAGE_MASK; - - /* - * Setup HP-UX Gateway page. - * - * The HP-UX gateway page resides in the user address space, - * so it needs to be aliased into each process. - */ - - pg_dir = pgd_offset(mm,hpux_gw_page_addr); - -#if PTRS_PER_PMD == 1 - start_pmd = 0; -#else - start_pmd = ((hpux_gw_page_addr >> PMD_SHIFT) & (PTRS_PER_PMD - 1)); -#endif - start_pte = ((hpux_gw_page_addr >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)); - - address = __pa(&hpux_gateway_page); -#if PTRS_PER_PMD == 1 - pmd = (pmd_t *)__pa(pg_dir); -#else - pmd = (pmd_t *) pgd_address(*pg_dir); - - /* - * pmd is physical at this point - */ - - if (!pmd) { - pmd = (pmd_t *) get_zeroed_page(GFP_KERNEL); - pmd = (pmd_t *) __pa(pmd); - } - - __pgd_val_set(*pg_dir, PxD_FLAG_PRESENT | PxD_FLAG_VALID | (unsigned long) pmd); -#endif - /* now change pmd to kernel virtual addresses */ - - pmd = (pmd_t *)__va(pmd) + start_pmd; - - /* - * pg_table is physical at this point - */ - - pg_table = (pte_t *) pmd_address(*pmd); - if (!pg_table) - pg_table = (pte_t *) __pa(get_zeroed_page(GFP_KERNEL)); - - __pmd_val_set(*pmd, PxD_FLAG_PRESENT | PxD_FLAG_VALID | (unsigned long) pg_table); - - /* now change pg_table to kernel virtual addresses */ - - pg_table = (pte_t *) __va(pg_table) + start_pte; - set_pte(pg_table, __mk_pte(address, PAGE_GATEWAY)); -} -EXPORT_SYMBOL(map_hpux_gateway_page); -#endif - void __init paging_init(void) { int i; |