+ fix a crash when write-back cache is used, by calling PTE_SYNC()
after tweaking page table entry. + 4th argument of bus_space_map() is not only for BUS_SPACE_MAP_CACHEABLE.
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@ -1,4 +1,4 @@
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/* $NetBSD: pxa2x0_space.c,v 1.1 2002/10/19 19:31:40 bsh Exp $ */
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/* $NetBSD: pxa2x0_space.c,v 1.2 2003/03/24 04:15:49 bsh Exp $ */
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/*
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* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
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@ -167,7 +167,7 @@ struct bus_space pxa2x0_bs_tag = {
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int
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pxa2x0_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
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int cacheable, bus_space_handle_t *bshp)
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int flag, bus_space_handle_t *bshp)
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{
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u_long startpa, endpa, pa;
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vaddr_t va;
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@ -192,11 +192,16 @@ pxa2x0_bs_map(void *t, bus_addr_t bpa, bus_size_t size,
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*bshp = (bus_space_handle_t)(va + (bpa - startpa));
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for(pa = startpa; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) {
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for (pa = startpa; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) {
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pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE);
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pte = vtopte(va);
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if (cacheable == 0)
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if ((flag & BUS_SPACE_MAP_CACHEABLE) == 0) {
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pte = vtopte(va);
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*pte &= ~L2_S_CACHE_MASK;
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PTE_SYNC(pte);
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/* XXX: pmap_kenter_pa() also does PTE_SYNC(). a bit of
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* waste.
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*/
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}
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}
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pmap_update(pmap_kernel());
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