[src/trunk]: src/sys/arch/arm/arm32 Add support for PMAP_PTE to pmap_kenter_pa

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/62bb2f27ecee
branches:  trunk
changeset: 327034:62bb2f27ecee
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Feb 26 01:41:40 2014 +0000

description:
Add support for PMAP_PTE to pmap_kenter_pa

diffstat:

 sys/arch/arm/arm32/pmap.c |  28 ++++++++--------------------
 1 files changed, 8 insertions(+), 20 deletions(-)

diffs (74 lines):

diff -r b83a57cf9b60 -r 62bb2f27ecee sys/arch/arm/arm32/pmap.c
--- a/sys/arch/arm/arm32/pmap.c Wed Feb 26 01:05:52 2014 +0000
+++ b/sys/arch/arm/arm32/pmap.c Wed Feb 26 01:41:40 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.264 2013/09/12 14:45:18 kiyohara Exp $      */
+/*     $NetBSD: pmap.c,v 1.265 2014/02/26 01:41:40 matt Exp $  */
 
 /*
  * Copyright 2003 Wasabi Systems, Inc.
@@ -209,7 +209,7 @@
 #include <arm/locore.h>
 #include <arm/arm32/katelib.h>
 
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.264 2013/09/12 14:45:18 kiyohara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.265 2014/02/26 01:41:40 matt Exp $");
 
 #ifdef PMAP_DEBUG
 
@@ -3371,7 +3371,10 @@
        }
 
        const pt_entry_t npte = L2_S_PROTO | pa | L2_S_PROT(PTE_KERNEL, prot)
-           | ((flags & PMAP_NOCACHE) ? 0 : pte_l2_s_cache_mode);
+           | ((flags & PMAP_NOCACHE)
+               ? 0
+               : ((flags & PMAP_PTE)
+                   ? pte_l2_s_cache_mode_pt : pte_l2_s_cache_mode));
        l2pte_set(ptep, npte, opte);
        PTE_SYNC(ptep);
 
@@ -4887,7 +4890,7 @@
                 */
                KASSERT(SLIST_EMPTY(&md->pvh_list));
                pmap_kenter_pa(va, pa,
-                   VM_PROT_READ|VM_PROT_WRITE, PMAP_KMPAGE);
+                   VM_PROT_READ|VM_PROT_WRITE, PMAP_KMPAGE|PMAP_PTE);
 #endif
        }
 
@@ -5552,12 +5555,10 @@
 pmap_postinit(void)
 {
        extern paddr_t physical_start, physical_end;
-       struct l2_bucket *l2b;
        struct l1_ttable *l1;
        struct pglist plist;
        struct vm_page *m;
        pd_entry_t *pl1pt;
-       pt_entry_t *ptep, pte;
        vaddr_t va, eva;
        u_int loop, needed;
        int error;
@@ -5591,20 +5592,7 @@
                        paddr_t pa = VM_PAGE_TO_PHYS(m);
 
                        pmap_kenter_pa(va, pa,
-                           VM_PROT_READ|VM_PROT_WRITE, PMAP_KMPAGE);
-
-                       /*
-                        * Make sure the L1 descriptor table is mapped
-                        * with the cache-mode set to write-through.
-                        */
-                       l2b = pmap_get_l2_bucket(pmap_kernel(), va);
-                       KDASSERT(l2b != NULL);
-                       ptep = &l2b->l2b_kva[l2pte_index(va)];
-                       pte = *ptep;
-                       pte = (pte & ~L2_S_CACHE_MASK) | pte_l2_s_cache_mode_pt;
-                       *ptep = pte;
-                       PTE_SYNC(ptep);
-                       cpu_tlb_flushD_SE(va);
+                           VM_PROT_READ|VM_PROT_WRITE, PMAP_KMPAGE|PMAP_PTE);
 
                        va += PAGE_SIZE;
                        m = TAILQ_NEXT(m, pageq.queue);