Drop code to create HP-UX gateway page and syscall entry code.
Signed-off-by: Helge Deller <deller@xxxxxx>
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 689a8ad..54adb60 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -330,8 +330,6 @@ struct mm_struct;
/* Free all resources held by a thread. */
extern void release_thread(struct task_struct *);
-extern void map_hpux_gateway_page(struct task_struct *tsk, struct mm_struct *mm);
-
extern unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.regs.iaoq[0])
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index e8f07dd..2ab16bb 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -1774,10 +1774,6 @@ ENTRY(sys_rt_sigreturn_wrapper)
ENDPROC(sys_rt_sigreturn_wrapper)
ENTRY(syscall_exit)
- /* NOTE: HP-UX syscalls also come through here
- * after hpux_syscall_exit fixes up return
- * values. */
-
/* NOTE: Not all syscalls exit this way. rt_sigreturn will exit
* via syscall_exit_rfi if the signal was received while the process
* was running.
@@ -1789,22 +1785,6 @@ ENTRY(syscall_exit)
LDREG TI_TASK(%r1),%r1
STREG %r28,TASK_PT_GR28(%r1)
-#ifdef CONFIG_HPUX
-/* <linux/personality.h> cannot be easily included */
-#define PER_HPUX 0x10
- ldw TASK_PERSONALITY(%r1),%r19
-
- /* We can't use "CMPIB<> PER_HPUX" since "im5" field is sign extended */
- ldo -PER_HPUX(%r19), %r19
- cmpib,COND(<>),n 0,%r19,1f
-
- /* Save other hpux returns if personality is PER_HPUX */
- STREG %r22,TASK_PT_GR22(%r1)
- STREG %r29,TASK_PT_GR29(%r1)
-1:
-
-#endif /* CONFIG_HPUX */
-
/* Seems to me that dp could be wrong here, if the syscall involved
* calling a module, and nothing got round to restoring dp on return.
*/
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..8a488c2 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -193,9 +193,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
* Make them const so the compiler knows they live in .text */
extern void * const ret_from_kernel_thread;
extern void * const child_return;
-#ifdef CONFIG_HPUX
- extern void * const hpux_child_return;
-#endif
+
if (unlikely(p->flags & PF_KTHREAD)) {
memset(cregs, 0, sizeof(struct pt_regs));
if (!usp) /* idle thread */
@@ -229,15 +227,8 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
cregs->gr[30] = usp;
}
cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE;
- if (personality(p->personality) == PER_HPUX) {
-#ifdef CONFIG_HPUX
- cregs->kpc = (unsigned long) &hpux_child_return;
-#else
- BUG();
-#endif
- } else {
- cregs->kpc = (unsigned long) &child_return;
- }
+ cregs->kpc = (unsigned long) &child_return;
+
/* Setup thread TLS area from the 4th parameter in clone */
if (clone_flags & CLONE_SETTLS)
cregs->cr27 = cregs->gr[23];
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 9b910a0..81e749f 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -9,8 +9,7 @@
*
* Like the IA-64, we are a recent enough port (we are *starting*
* with glibc2.2) that we do not need to support the old non-realtime
- * Linux signals. Therefore we don't. HP/UX signals will go in
- * arch/parisc/hpux/signal.c when we figure out how to do them.
+ * Linux signals. Therefore we don't.
*/
#include <linux/sched.h>
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 0bef864..15dbe81 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;
--
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