- move internal function declarations from pmap_pvt.h to pmap.c itself
- make some local functions static inline - KNF a bit
This commit is contained in:
tsutsui
parent
c364d22b20
commit
c44c5152c9
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@ -1,4 +1,4 @@
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/* $NetBSD: pmap.c,v 1.91 2006/09/16 03:35:50 tsutsui Exp $ */
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/* $NetBSD: pmap.c,v 1.92 2006/09/20 09:35:57 tsutsui Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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@ -112,7 +112,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.91 2006/09/16 03:35:50 tsutsui Exp $");
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__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.92 2006/09/20 09:35:57 tsutsui Exp $");
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#include "opt_ddb.h"
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#include "opt_pmap_debug.h"
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@ -269,8 +269,10 @@ static TAILQ_HEAD(c_pool_head_struct, c_tmgr_struct) c_pool;
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* Flags used to mark the safety/availability of certain operations or
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* resources.
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*/
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static boolean_t bootstrap_alloc_enabled = FALSE; /*Safe to use pmap_bootstrap_alloc().*/
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int tmp_vpages_inuse; /* Temporary virtual pages are in use */
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/* Safe to use pmap_bootstrap_alloc(). */
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static boolean_t bootstrap_alloc_enabled = FALSE;
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/* Temporary virtual pages are in use */
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int tmp_vpages_inuse;
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/*
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* XXX: For now, retain the traditional variables that were
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@ -374,10 +376,10 @@ static INLINE void *mmu_ptov(paddr_t);
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static INLINE paddr_t mmu_vtop(void *);
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#if 0
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static INLINE a_tmgr_t * mmuA2tmgr(mmu_long_dte_t *);
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static INLINE a_tmgr_t *mmuA2tmgr(mmu_long_dte_t *);
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#endif /* 0 */
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static INLINE b_tmgr_t * mmuB2tmgr(mmu_short_dte_t *);
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static INLINE c_tmgr_t * mmuC2tmgr(mmu_short_pte_t *);
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static INLINE b_tmgr_t *mmuB2tmgr(mmu_short_dte_t *);
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static INLINE c_tmgr_t *mmuC2tmgr(mmu_short_pte_t *);
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static INLINE pv_t *pa2pv(paddr_t);
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static INLINE int pteidx(mmu_short_pte_t *);
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@ -399,7 +401,7 @@ mmu_ptov(paddr_t pa)
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if ((va < KERNBASE) || (va >= virtual_contig_end))
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panic("mmu_ptov");
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#endif
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return ((void*)va);
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return (void *)va;
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}
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static INLINE paddr_t
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@ -412,7 +414,7 @@ mmu_vtop(void *vva)
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if ((va < KERNBASE) || (va >= virtual_contig_end))
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panic("mmu_vtop");
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#endif
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return (va - KERNBASE);
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return va - KERNBASE;
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}
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/*
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@ -443,7 +445,7 @@ mmuA2tmgr(mmu_long_dte_t *mmuAtbl)
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if ((idx < 0) || (idx >= NUM_A_TABLES))
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panic("mmuA2tmgr");
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#endif
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return (&Atmgrbase[idx]);
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return &Atmgrbase[idx];
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}
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#endif /* 0 */
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@ -458,7 +460,7 @@ mmuB2tmgr(mmu_short_dte_t *mmuBtbl)
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if ((idx < 0) || (idx >= NUM_B_TABLES))
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panic("mmuB2tmgr");
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#endif
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return (&Btmgrbase[idx]);
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return &Btmgrbase[idx];
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}
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/* mmuC2tmgr INTERNAL
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@ -477,7 +479,7 @@ mmuC2tmgr(mmu_short_pte_t *mmuCtbl)
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if ((idx < 0) || (idx >= NUM_C_TABLES))
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panic("mmuC2tmgr");
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#endif
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return (&Ctmgrbase[idx]);
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return &Ctmgrbase[idx];
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}
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/* This is now a function call below.
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@ -519,7 +521,8 @@ pa2pv(paddr_t pa)
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static INLINE int
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pteidx(mmu_short_pte_t *pte)
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{
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return (pte - kernCbase);
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return pte - kernCbase;
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}
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/*
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@ -541,7 +544,7 @@ current_pmap(void)
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pmap = vm_map_pmap(map);
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}
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return (pmap);
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return pmap;
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}
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@ -550,18 +553,58 @@ current_pmap(void)
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* all function calls. *
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*************************************************************************/
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/** Internal functions
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** Most functions used only within this module are defined in
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** pmap_pvt.h (why not here if used only here?)
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**/
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/*
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* Internal functions
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*/
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a_tmgr_t *get_a_table(void);
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b_tmgr_t *get_b_table(void);
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c_tmgr_t *get_c_table(void);
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int free_a_table(a_tmgr_t *, boolean_t);
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int free_b_table(b_tmgr_t *, boolean_t);
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int free_c_table(c_tmgr_t *, boolean_t);
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void pmap_bootstrap_aalign(int);
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void pmap_alloc_usermmu(void);
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void pmap_alloc_usertmgr(void);
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void pmap_alloc_pv(void);
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void pmap_init_a_tables(void);
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void pmap_init_b_tables(void);
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void pmap_init_c_tables(void);
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void pmap_init_pv(void);
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void pmap_clear_pv(paddr_t, int);
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static INLINE boolean_t is_managed(paddr_t);
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boolean_t pmap_remove_a(a_tmgr_t *, vaddr_t, vaddr_t);
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boolean_t pmap_remove_b(b_tmgr_t *, vaddr_t, vaddr_t);
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boolean_t pmap_remove_c(c_tmgr_t *, vaddr_t, vaddr_t);
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void pmap_remove_pte(mmu_short_pte_t *);
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void pmap_enter_kernel(vaddr_t, paddr_t, vm_prot_t);
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static INLINE void pmap_remove_kernel(vaddr_t, vaddr_t);
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static INLINE void pmap_protect_kernel(vaddr_t, vaddr_t, vm_prot_t);
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static INLINE boolean_t pmap_extract_kernel(vaddr_t, paddr_t *);
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vaddr_t pmap_get_pteinfo(u_int, pmap_t *, c_tmgr_t **);
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static INLINE int pmap_dereference(pmap_t);
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boolean_t pmap_stroll(pmap_t, vaddr_t, a_tmgr_t **, b_tmgr_t **, c_tmgr_t **,
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mmu_short_pte_t **, int *, int *, int *);
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void pmap_bootstrap_copyprom(void);
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void pmap_takeover_mmu(void);
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void pmap_bootstrap_setprom(void);
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static void pmap_page_upload(void);
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#ifdef PMAP_DEBUG
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/* Debugging function definitions */
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void pv_list(paddr_t, int);
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#endif /* PMAP_DEBUG */
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/** Interface functions
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** - functions required by the Mach VM Pmap interface, with MACHINE_CONTIG
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** defined.
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** The new UVM doesn't require them so now INTERNAL.
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**/
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void pmap_pinit(pmap_t);
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void pmap_release(pmap_t);
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static INLINE void pmap_pinit(pmap_t);
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static INLINE void pmap_release(pmap_t);
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/********************************** CODE ********************************
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* Functions that are called from other parts of the kernel are labeled *
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@ -740,12 +783,12 @@ pmap_bootstrap(vaddr_t nextva)
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*/
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for (i = MMU_TIA(KERNBASE); i < MMU_A_TBL_SIZE; i++) {
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kernAbase[i].attr.raw =
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MMU_LONG_DTE_LU | MMU_LONG_DTE_SUPV | MMU_DT_SHORT;
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MMU_LONG_DTE_LU | MMU_LONG_DTE_SUPV | MMU_DT_SHORT;
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kernAbase[i].addr.raw = mmu_vtop(&kernBbase[b]);
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for (j=0; j < MMU_B_TBL_SIZE; j++) {
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kernBbase[b + j].attr.raw = mmu_vtop(&kernCbase[c])
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| MMU_DT_SHORT;
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for (j = 0; j < MMU_B_TBL_SIZE; j++) {
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kernBbase[b + j].attr.raw =
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mmu_vtop(&kernCbase[c]) | MMU_DT_SHORT;
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c += MMU_C_TBL_SIZE;
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}
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b += MMU_B_TBL_SIZE;
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@ -830,11 +873,13 @@ pmap_bootstrap(vaddr_t nextva)
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* It is non-cached, mostly due to paranoia.
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*/
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pmap_enter_kernel(va, pa|PMAP_NC, VM_PROT_ALL);
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va += PAGE_SIZE; pa += PAGE_SIZE;
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va += PAGE_SIZE;
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pa += PAGE_SIZE;
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/* Next page is used as the temporary stack. */
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pmap_enter_kernel(va, pa, VM_PROT_ALL);
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va += PAGE_SIZE; pa += PAGE_SIZE;
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va += PAGE_SIZE;
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pa += PAGE_SIZE;
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/*
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* Map all of the kernel's text segment as read-only and cacheable.
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@ -880,6 +925,7 @@ pmap_bootstrap(vaddr_t nextva)
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void
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pmap_alloc_usermmu(void)
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{
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/* XXX: Moved into caller. */
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}
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@ -912,13 +958,12 @@ pmap_alloc_pv(void)
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total_mem = 0;
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for (i = 0; i < SUN3X_NPHYS_RAM_SEGS; i++) {
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avail_mem[i].pmem_pvbase = m68k_btop(total_mem);
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total_mem += avail_mem[i].pmem_end -
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avail_mem[i].pmem_start;
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total_mem += avail_mem[i].pmem_end - avail_mem[i].pmem_start;
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if (avail_mem[i].pmem_next == NULL)
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break;
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}
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pvbase = (pv_t *) pmap_bootstrap_alloc(sizeof(pv_t) *
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m68k_btop(total_phys_mem));
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pvbase = (pv_t *)pmap_bootstrap_alloc(sizeof(pv_t) *
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m68k_btop(total_phys_mem));
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}
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/* pmap_alloc_usertmgr INTERNAL
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@ -933,19 +978,19 @@ pmap_alloc_usertmgr(void)
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/* Allocate user MMU table managers */
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/* It would be a lot simpler to just make these BSS, but */
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/* we may want to change their size at boot time... -j */
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Atmgrbase = (a_tmgr_t *) pmap_bootstrap_alloc(sizeof(a_tmgr_t)
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* NUM_A_TABLES);
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Btmgrbase = (b_tmgr_t *) pmap_bootstrap_alloc(sizeof(b_tmgr_t)
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* NUM_B_TABLES);
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Ctmgrbase = (c_tmgr_t *) pmap_bootstrap_alloc(sizeof(c_tmgr_t)
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* NUM_C_TABLES);
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Atmgrbase =
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(a_tmgr_t *)pmap_bootstrap_alloc(sizeof(a_tmgr_t) * NUM_A_TABLES);
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Btmgrbase =
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(b_tmgr_t *)pmap_bootstrap_alloc(sizeof(b_tmgr_t) * NUM_B_TABLES);
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Ctmgrbase =
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(c_tmgr_t *)pmap_bootstrap_alloc(sizeof(c_tmgr_t) * NUM_C_TABLES);
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/*
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* Allocate PV list elements for the physical to virtual
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* mapping system.
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*/
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pvebase = (pv_elem_t *) pmap_bootstrap_alloc(
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sizeof(pv_elem_t) * (NUM_USER_PTES + NUM_KERN_PTES));
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pvebase = (pv_elem_t *)pmap_bootstrap_alloc(sizeof(pv_elem_t) *
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(NUM_USER_PTES + NUM_KERN_PTES));
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}
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/* pmap_bootstrap_copyprom() INTERNAL
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@ -990,7 +1035,7 @@ pmap_bootstrap_copyprom(void)
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i = m68k_btop(SUN3X_MON_DVMA_BASE - KERNBASE);
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kpte = &kernCbase[i];
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len = m68k_btop(SUN3X_MON_DVMA_SIZE);
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for (i = (len-1); i < len; i++) {
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for (i = (len - 1); i < len; i++) {
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kpte[i].attr.raw = mon_ctbl[i];
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}
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}
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@ -1022,7 +1067,7 @@ pmap_bootstrap_setprom(void)
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extern struct mmu_rootptr mon_crp;
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int i;
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mon_dte = (mmu_long_dte_t *) mon_crp.rp_addr;
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mon_dte = (mmu_long_dte_t *)mon_crp.rp_addr;
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for (i = MMU_TIA(KERNBASE); i < MMU_TIA(KERN_END); i++) {
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mon_dte[i].attr.raw = kernAbase[i].attr.raw;
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mon_dte[i].addr.raw = kernAbase[i].addr.raw;
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@ -1040,6 +1085,7 @@ pmap_bootstrap_setprom(void)
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void
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pmap_init(void)
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{
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/** Initialize the manager pools **/
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TAILQ_INIT(&a_pool);
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TAILQ_INIT(&b_pool);
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@ -1090,8 +1136,8 @@ pmap_init_a_tables(void)
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* or kernel, mapping. This ensures that every process has
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* the kernel mapped in the top part of its address space.
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*/
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memcpy(a_tbl->at_dtbl, kernAbase, MMU_A_TBL_SIZE *
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sizeof(mmu_long_dte_t));
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memcpy(a_tbl->at_dtbl, kernAbase,
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MMU_A_TBL_SIZE * sizeof(mmu_long_dte_t));
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/*
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* Finally, insert the manager into the A pool,
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@ -1125,7 +1171,7 @@ pmap_init_b_tables(void)
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b_tbl->bt_dtbl = &mmuBbase[i * MMU_B_TBL_SIZE];
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/* Invalidate every descriptor in the table */
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for (j=0; j < MMU_B_TBL_SIZE; j++)
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for (j = 0; j < MMU_B_TBL_SIZE; j++)
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b_tbl->bt_dtbl[j].attr.raw = MMU_DT_INVALID;
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/* Insert the manager into the B pool */
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@ -1158,7 +1204,7 @@ pmap_init_c_tables(void)
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/* Assign it the next available MMU C table from the pool */
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c_tbl->ct_dtbl = &mmuCbase[i * MMU_C_TBL_SIZE];
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for (j=0; j < MMU_C_TBL_SIZE; j++)
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for (j = 0; j < MMU_C_TBL_SIZE; j++)
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c_tbl->ct_dtbl[j].attr.raw = MMU_DT_INVALID;
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TAILQ_INSERT_TAIL(&c_pool, c_tbl, ct_link);
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@ -1181,6 +1227,30 @@ pmap_init_pv(void)
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}
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}
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/* is_managed INTERNAL
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**
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* Determine if the given physical address is managed by the PV system.
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* Note that this logic assumes that no one will ask for the status of
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* addresses which lie in-between the memory banks on the 3/80. If they
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* do so, it will falsely report that it is managed.
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*
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* Note: A "managed" address is one that was reported to the VM system as
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* a "usable page" during system startup. As such, the VM system expects the
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* pmap module to keep an accurate track of the useage of those pages.
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* Any page not given to the VM system at startup does not exist (as far as
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* the VM system is concerned) and is therefore "unmanaged." Examples are
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* those pages which belong to the ROM monitor and the memory allocated before
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* the VM system was started.
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*/
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static INLINE boolean_t
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is_managed(paddr_t pa)
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{
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if (pa >= avail_start && pa < avail_end)
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return TRUE;
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else
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return FALSE;
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}
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/* get_a_table INTERNAL
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**
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* Retrieve and return a level A table for use in a user map.
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@ -1337,7 +1407,7 @@ free_a_table(a_tmgr_t *a_tbl, boolean_t relink)
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at_wired = a_tbl->at_wcnt;
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if (a_tbl->at_ecnt) {
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dte = a_tbl->at_dtbl;
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for (i=0; i < MMU_TIA(KERNBASE); i++) {
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for (i = 0; i < MMU_TIA(KERNBASE); i++) {
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/*
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* If a table entry points to a valid B table, free
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* it and its children.
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@ -1402,7 +1472,7 @@ free_b_table(b_tmgr_t *b_tbl, boolean_t relink)
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bt_wired = b_tbl->bt_wcnt;
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if (b_tbl->bt_ecnt) {
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dte = b_tbl->bt_dtbl;
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for (i=0; i < MMU_B_TBL_SIZE; i++) {
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for (i = 0; i < MMU_B_TBL_SIZE; i++) {
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if (MMU_VALID_DT(dte[i])) {
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dtbl = mmu_ptov(MMU_DTE_PA(dte[i]));
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c_tbl = mmuC2tmgr(dtbl);
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@ -1445,7 +1515,7 @@ free_c_table(c_tmgr_t *c_tbl, boolean_t relink)
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removed_cnt = 0;
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ct_wired = c_tbl->ct_wcnt;
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if (c_tbl->ct_ecnt) {
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for (i=0; i < MMU_C_TBL_SIZE; i++) {
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for (i = 0; i < MMU_C_TBL_SIZE; i++) {
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c_pte = &c_tbl->ct_dtbl[i];
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if (MMU_VALID_DT(*c_pte)) {
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if (c_pte->attr.raw & MMU_SHORT_PTE_WIRED)
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@ -1535,7 +1605,7 @@ pmap_remove_pte(mmu_short_pte_t *pte)
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* which is used on the MMU ptes.
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*/
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pv_not_found:
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pv_not_found:
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pv->pv_flags |= (u_short) pte->attr.raw;
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}
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pte->attr.raw = MMU_DT_INVALID;
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@ -1575,7 +1645,8 @@ pmap_stroll(pmap_t pmap, vaddr_t va, a_tmgr_t **a_tbl, b_tmgr_t **b_tbl,
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return FALSE; /* No. Return unknown. */
|
||||
/* Yes. Extract B table from the A table. */
|
||||
*b_tbl = mmuB2tmgr(mmu_ptov(a_dte->addr.raw));
|
||||
/* Does the B table have a valid C table
|
||||
/*
|
||||
* Does the B table have a valid C table
|
||||
* under the corresponding table entry?
|
||||
*/
|
||||
*b_idx = MMU_TIB(va);
|
||||
|
|
@ -1587,7 +1658,7 @@ pmap_stroll(pmap_t pmap, vaddr_t va, a_tmgr_t **a_tbl, b_tmgr_t **b_tbl,
|
|||
*pte_idx = MMU_TIC(va);
|
||||
*pte = &((*c_tbl)->ct_dtbl[*pte_idx]);
|
||||
|
||||
return TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* pmap_enter INTERFACE
|
||||
|
|
@ -1645,8 +1716,8 @@ pmap_enter(pmap_t pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, int flags)
|
|||
*
|
||||
* Extract sun3x specific flags from the physical address.
|
||||
*/
|
||||
mapflags = (pa & ~MMU_PAGE_MASK);
|
||||
pa &= MMU_PAGE_MASK;
|
||||
mapflags = (pa & ~MMU_PAGE_MASK);
|
||||
pa &= MMU_PAGE_MASK;
|
||||
|
||||
/*
|
||||
* Determine if the physical address being mapped is on-board RAM.
|
||||
|
|
@ -1890,7 +1961,7 @@ pmap_enter(pmap_t pmap, vaddr_t va, paddr_t pa, vm_prot_t prot, int flags)
|
|||
* bits on the PTE.
|
||||
*/
|
||||
c_pte->attr.raw &= (MMU_SHORT_PTE_M
|
||||
| MMU_SHORT_PTE_USED | MMU_SHORT_PTE_WIRED);
|
||||
| MMU_SHORT_PTE_USED | MMU_SHORT_PTE_WIRED);
|
||||
} else {
|
||||
/* No, remove the old entry */
|
||||
pmap_remove_pte(c_pte);
|
||||
|
|
@ -2034,7 +2105,7 @@ pmap_enter_kernel(vaddr_t va, paddr_t pa, vm_prot_t prot)
|
|||
/*
|
||||
* Calculate the index of the PTE being modified.
|
||||
*/
|
||||
pte_idx = (u_long) m68k_btop(va - KERNBASE);
|
||||
pte_idx = (u_long)m68k_btop(va - KERNBASE);
|
||||
|
||||
/* This array is traditionally named "Sysmap" */
|
||||
pte = &kernCbase[pte_idx];
|
||||
|
|
@ -2143,7 +2214,44 @@ pmap_map(vaddr_t va, paddr_t pa, paddr_t endpa, int prot)
|
|||
sz -= PAGE_SIZE;
|
||||
} while (sz > 0);
|
||||
pmap_update(pmap_kernel());
|
||||
return(va);
|
||||
return va;
|
||||
}
|
||||
|
||||
/* pmap_protect_kernel INTERNAL
|
||||
**
|
||||
* Apply the given protection code to a kernel address range.
|
||||
*/
|
||||
static INLINE void
|
||||
pmap_protect_kernel(vaddr_t startva, vaddr_t endva, vm_prot_t prot)
|
||||
{
|
||||
vaddr_t va;
|
||||
mmu_short_pte_t *pte;
|
||||
|
||||
pte = &kernCbase[(unsigned long) m68k_btop(startva - KERNBASE)];
|
||||
for (va = startva; va < endva; va += PAGE_SIZE, pte++) {
|
||||
if (MMU_VALID_DT(*pte)) {
|
||||
switch (prot) {
|
||||
case VM_PROT_ALL:
|
||||
break;
|
||||
case VM_PROT_EXECUTE:
|
||||
case VM_PROT_READ:
|
||||
case VM_PROT_READ|VM_PROT_EXECUTE:
|
||||
pte->attr.raw |= MMU_SHORT_PTE_WP;
|
||||
break;
|
||||
case VM_PROT_NONE:
|
||||
/* this is an alias for 'pmap_remove_kernel' */
|
||||
pmap_remove_pte(pte);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
/*
|
||||
* since this is the kernel, immediately flush any cached
|
||||
* descriptors for this address.
|
||||
*/
|
||||
TBIS(va);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* pmap_protect INTERFACE
|
||||
|
|
@ -2274,43 +2382,6 @@ pmap_protect(pmap_t pmap, vaddr_t startva, vaddr_t endva, vm_prot_t prot)
|
|||
}
|
||||
}
|
||||
|
||||
/* pmap_protect_kernel INTERNAL
|
||||
**
|
||||
* Apply the given protection code to a kernel address range.
|
||||
*/
|
||||
void
|
||||
pmap_protect_kernel(vaddr_t startva, vaddr_t endva, vm_prot_t prot)
|
||||
{
|
||||
vaddr_t va;
|
||||
mmu_short_pte_t *pte;
|
||||
|
||||
pte = &kernCbase[(unsigned long) m68k_btop(startva - KERNBASE)];
|
||||
for (va = startva; va < endva; va += PAGE_SIZE, pte++) {
|
||||
if (MMU_VALID_DT(*pte)) {
|
||||
switch (prot) {
|
||||
case VM_PROT_ALL:
|
||||
break;
|
||||
case VM_PROT_EXECUTE:
|
||||
case VM_PROT_READ:
|
||||
case VM_PROT_READ|VM_PROT_EXECUTE:
|
||||
pte->attr.raw |= MMU_SHORT_PTE_WP;
|
||||
break;
|
||||
case VM_PROT_NONE:
|
||||
/* this is an alias for 'pmap_remove_kernel' */
|
||||
pmap_remove_pte(pte);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
/*
|
||||
* since this is the kernel, immediately flush any cached
|
||||
* descriptors for this address.
|
||||
*/
|
||||
TBIS(va);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* pmap_unwire INTERFACE
|
||||
**
|
||||
* Clear the wired attribute of the specified page.
|
||||
|
|
@ -2381,6 +2452,7 @@ pmap_unwire(pmap_t pmap, vaddr_t va)
|
|||
void
|
||||
pmap_copy(pmap_t pmap_a, pmap_t pmap_b, vaddr_t dst, vsize_t len, vaddr_t src)
|
||||
{
|
||||
|
||||
/* not implemented. */
|
||||
}
|
||||
|
||||
|
|
@ -2411,10 +2483,10 @@ pmap_copy_page(paddr_t srcpa, paddr_t dstpa)
|
|||
|
||||
/* Map pages as non-cacheable to avoid cache polution? */
|
||||
pmap_kenter_pa(srcva, srcpa, VM_PROT_READ);
|
||||
pmap_kenter_pa(dstva, dstpa, VM_PROT_READ|VM_PROT_WRITE);
|
||||
pmap_kenter_pa(dstva, dstpa, VM_PROT_READ | VM_PROT_WRITE);
|
||||
|
||||
/* Hand-optimized version of bcopy(src, dst, PAGE_SIZE) */
|
||||
copypage((char *) srcva, (char *) dstva);
|
||||
copypage((char *)srcva, (char *)dstva);
|
||||
|
||||
pmap_kremove(srcva, PAGE_SIZE);
|
||||
pmap_kremove(dstva, PAGE_SIZE);
|
||||
|
|
@ -2446,10 +2518,10 @@ pmap_zero_page(paddr_t dstpa)
|
|||
#endif
|
||||
|
||||
/* The comments in pmap_copy_page() above apply here also. */
|
||||
pmap_kenter_pa(dstva, dstpa, VM_PROT_READ|VM_PROT_WRITE);
|
||||
pmap_kenter_pa(dstva, dstpa, VM_PROT_READ | VM_PROT_WRITE);
|
||||
|
||||
/* Hand-optimized version of bzero(ptr, PAGE_SIZE) */
|
||||
zeropage((char *) dstva);
|
||||
zeropage((char *)dstva);
|
||||
|
||||
pmap_kremove(dstva, PAGE_SIZE);
|
||||
#ifdef DIAGNOSTIC
|
||||
|
|
@ -2467,9 +2539,25 @@ pmap_zero_page(paddr_t dstpa)
|
|||
void
|
||||
pmap_collect(pmap_t pmap)
|
||||
{
|
||||
|
||||
/* XXX - todo... */
|
||||
}
|
||||
|
||||
/* pmap_pinit INTERNAL
|
||||
**
|
||||
* Initialize a pmap structure.
|
||||
*/
|
||||
static INLINE void
|
||||
pmap_pinit(pmap_t pmap)
|
||||
{
|
||||
|
||||
memset(pmap, 0, sizeof(struct pmap));
|
||||
pmap->pm_a_tmgr = NULL;
|
||||
pmap->pm_a_phys = kernAphys;
|
||||
pmap->pm_refcount = 1;
|
||||
simple_lock_init(&pmap->pm_lock);
|
||||
}
|
||||
|
||||
/* pmap_create INTERFACE
|
||||
**
|
||||
* Create and return a pmap structure.
|
||||
|
|
@ -2484,21 +2572,7 @@ pmap_create(void)
|
|||
return pmap;
|
||||
}
|
||||
|
||||
/* pmap_pinit INTERNAL
|
||||
**
|
||||
* Initialize a pmap structure.
|
||||
*/
|
||||
void
|
||||
pmap_pinit(pmap_t pmap)
|
||||
{
|
||||
memset(pmap, 0, sizeof(struct pmap));
|
||||
pmap->pm_a_tmgr = NULL;
|
||||
pmap->pm_a_phys = kernAphys;
|
||||
pmap->pm_refcount = 1;
|
||||
simple_lock_init(&pmap->pm_lock);
|
||||
}
|
||||
|
||||
/* pmap_release INTERFACE
|
||||
/* pmap_release INTERNAL
|
||||
**
|
||||
* Release any resources held by the given pmap.
|
||||
*
|
||||
|
|
@ -2506,9 +2580,10 @@ pmap_pinit(pmap_t pmap)
|
|||
* necessarily mean for the pmap structure to be deallocated,
|
||||
* as in pmap_destroy.
|
||||
*/
|
||||
void
|
||||
static INLINE void
|
||||
pmap_release(pmap_t pmap)
|
||||
{
|
||||
|
||||
/*
|
||||
* As long as the pmap contains no mappings,
|
||||
* which always should be the case whenever
|
||||
|
|
@ -2561,7 +2636,7 @@ pmap_reference(pmap_t pmap)
|
|||
* Decrease the reference count on the given pmap
|
||||
* by one and return the current count.
|
||||
*/
|
||||
int
|
||||
static INLINE int
|
||||
pmap_dereference(pmap_t pmap)
|
||||
{
|
||||
int rtn;
|
||||
|
|
@ -2582,6 +2657,7 @@ pmap_dereference(pmap_t pmap)
|
|||
void
|
||||
pmap_destroy(pmap_t pmap)
|
||||
{
|
||||
|
||||
if (pmap_dereference(pmap) == 0) {
|
||||
pmap_release(pmap);
|
||||
pool_put(&pmap_pmap_pool, pmap);
|
||||
|
|
@ -2763,7 +2839,7 @@ pmap_get_pteinfo(u_int idx, pmap_t *pmap, c_tmgr_t **tbl)
|
|||
* in ct_va. We then increment this address by a page for
|
||||
* every slot skipped until we reach the PTE.
|
||||
*/
|
||||
va = (*tbl)->ct_va;
|
||||
va = (*tbl)->ct_va;
|
||||
va += m68k_ptob(idx % MMU_C_TBL_SIZE);
|
||||
} else {
|
||||
/*
|
||||
|
|
@ -2861,6 +2937,23 @@ pmap_clear_pv(paddr_t pa, int flag)
|
|||
}
|
||||
}
|
||||
|
||||
/* pmap_extract_kernel INTERNAL
|
||||
**
|
||||
* Extract a translation from the kernel address space.
|
||||
*/
|
||||
static INLINE boolean_t
|
||||
pmap_extract_kernel(vaddr_t va, paddr_t *pap)
|
||||
{
|
||||
mmu_short_pte_t *pte;
|
||||
|
||||
pte = &kernCbase[(u_int)m68k_btop(va - KERNBASE)];
|
||||
if (!MMU_VALID_DT(*pte))
|
||||
return FALSE;
|
||||
if (pap != NULL)
|
||||
*pap = MMU_PTE_PA(*pte);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* pmap_extract INTERFACE
|
||||
**
|
||||
* Return the physical address mapped by the virtual address
|
||||
|
|
@ -2890,24 +2983,7 @@ pmap_extract(pmap_t pmap, vaddr_t va, paddr_t *pap)
|
|||
|
||||
if (pap != NULL)
|
||||
*pap = MMU_PTE_PA(*c_pte);
|
||||
return (TRUE);
|
||||
}
|
||||
|
||||
/* pmap_extract_kernel INTERNAL
|
||||
**
|
||||
* Extract a translation from the kernel address space.
|
||||
*/
|
||||
boolean_t
|
||||
pmap_extract_kernel(vaddr_t va, paddr_t *pap)
|
||||
{
|
||||
mmu_short_pte_t *pte;
|
||||
|
||||
pte = &kernCbase[(u_int) m68k_btop(va - KERNBASE)];
|
||||
if (!MMU_VALID_DT(*pte))
|
||||
return (FALSE);
|
||||
if (pap != NULL)
|
||||
*pap = MMU_PTE_PA(*pte);
|
||||
return (TRUE);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* pmap_remove_kernel INTERNAL
|
||||
|
|
@ -2915,7 +2991,7 @@ pmap_extract_kernel(vaddr_t va, paddr_t *pap)
|
|||
* Remove the mapping of a range of virtual addresses from the kernel map.
|
||||
* The arguments are already page-aligned.
|
||||
*/
|
||||
void
|
||||
static INLINE void
|
||||
pmap_remove_kernel(vaddr_t sva, vaddr_t eva)
|
||||
{
|
||||
int idx, eidx;
|
||||
|
|
@ -3352,7 +3428,7 @@ pmap_remove_c(c_tmgr_t *c_tbl, vaddr_t sva, vaddr_t eva)
|
|||
|
||||
idx = MMU_TIC(sva);
|
||||
c_pte = &c_tbl->ct_dtbl[idx];
|
||||
for (;sva < eva; sva += MMU_PAGE_SIZE, c_pte++) {
|
||||
for (; sva < eva; sva += MMU_PAGE_SIZE, c_pte++) {
|
||||
if (MMU_VALID_DT(*c_pte)) {
|
||||
if (c_pte->attr.raw & MMU_SHORT_PTE_WIRED)
|
||||
c_tbl->ct_wcnt--;
|
||||
|
|
@ -3382,30 +3458,6 @@ pmap_remove_c(c_tmgr_t *c_tbl, vaddr_t sva, vaddr_t eva)
|
|||
return empty;
|
||||
}
|
||||
|
||||
/* is_managed INTERNAL
|
||||
**
|
||||
* Determine if the given physical address is managed by the PV system.
|
||||
* Note that this logic assumes that no one will ask for the status of
|
||||
* addresses which lie in-between the memory banks on the 3/80. If they
|
||||
* do so, it will falsely report that it is managed.
|
||||
*
|
||||
* Note: A "managed" address is one that was reported to the VM system as
|
||||
* a "usable page" during system startup. As such, the VM system expects the
|
||||
* pmap module to keep an accurate track of the useage of those pages.
|
||||
* Any page not given to the VM system at startup does not exist (as far as
|
||||
* the VM system is concerned) and is therefore "unmanaged." Examples are
|
||||
* those pages which belong to the ROM monitor and the memory allocated before
|
||||
* the VM system was started.
|
||||
*/
|
||||
boolean_t
|
||||
is_managed(paddr_t pa)
|
||||
{
|
||||
if (pa >= avail_start && pa < avail_end)
|
||||
return TRUE;
|
||||
else
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* pmap_bootstrap_alloc INTERNAL
|
||||
**
|
||||
* Used internally for memory allocation at startup when malloc is not
|
||||
|
|
@ -3453,7 +3505,7 @@ pmap_bootstrap_aalign(int size)
|
|||
|
||||
off = virtual_avail & (size - 1);
|
||||
if (off) {
|
||||
(void) pmap_bootstrap_alloc(size - off);
|
||||
(void)pmap_bootstrap_alloc(size - off);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -3470,11 +3522,11 @@ pmap_pa_exists(paddr_t pa)
|
|||
for (i = 0; i < SUN3X_NPHYS_RAM_SEGS; i++) {
|
||||
if ((pa >= avail_mem[i].pmem_start) &&
|
||||
(pa < avail_mem[i].pmem_end))
|
||||
return (1);
|
||||
return 1;
|
||||
if (avail_mem[i].pmem_next == NULL)
|
||||
break;
|
||||
}
|
||||
return (0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Called only from locore.s and pmap.c */
|
||||
|
|
@ -3521,6 +3573,7 @@ _pmap_switch(pmap_t pmap)
|
|||
void
|
||||
pmap_activate(struct lwp *l)
|
||||
{
|
||||
|
||||
if (l->l_proc == curproc) {
|
||||
_pmap_switch(l->l_proc->p_vmspace->vm_map.pmap);
|
||||
}
|
||||
|
|
@ -3534,6 +3587,7 @@ pmap_activate(struct lwp *l)
|
|||
void
|
||||
pmap_deactivate(struct lwp *l)
|
||||
{
|
||||
|
||||
/* Nothing to do. */
|
||||
}
|
||||
|
||||
|
|
@ -3570,6 +3624,7 @@ pmap_kcore_hdr(struct sun3x_kcore_hdr *sh)
|
|||
void
|
||||
pmap_virtual_space(vaddr_t *vstart, vaddr_t *vend)
|
||||
{
|
||||
|
||||
*vstart = virtual_avail;
|
||||
*vend = virtual_end;
|
||||
}
|
||||
|
|
@ -3714,6 +3769,7 @@ set_pte(vaddr_t va, u_int pte)
|
|||
void
|
||||
pmap_procwr(struct proc *p, vaddr_t va, size_t len)
|
||||
{
|
||||
|
||||
(void)cachectl1(0x80000004, va, len, p);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: pmap_pvt.h,v 1.13 2005/12/11 12:19:27 christos Exp $ */
|
||||
/* $NetBSD: pmap_pvt.h,v 1.14 2006/09/20 09:35:57 tsutsui Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1996 The NetBSD Foundation, Inc.
|
||||
|
|
@ -166,46 +166,7 @@ struct pmap_physmem_struct {
|
|||
struct pmap_physmem_struct *pmem_next; /* Next block of memory */
|
||||
};
|
||||
|
||||
/* Internal function definitions. */
|
||||
a_tmgr_t *get_a_table(void);
|
||||
b_tmgr_t *get_b_table(void);
|
||||
c_tmgr_t *get_c_table(void);
|
||||
int free_a_table(a_tmgr_t *, boolean_t);
|
||||
int free_b_table(b_tmgr_t *, boolean_t);
|
||||
int free_c_table(c_tmgr_t *, boolean_t);
|
||||
void pmap_bootstrap_aalign(int);
|
||||
void pmap_alloc_usermmu(void);
|
||||
void pmap_alloc_usertmgr(void);
|
||||
void pmap_alloc_pv(void);
|
||||
void pmap_init_a_tables(void);
|
||||
void pmap_init_b_tables(void);
|
||||
void pmap_init_c_tables(void);
|
||||
void pmap_init_pv(void);
|
||||
void pmap_clear_pv(paddr_t, int);
|
||||
boolean_t pmap_remove_a(a_tmgr_t *, vaddr_t, vaddr_t);
|
||||
boolean_t pmap_remove_b(b_tmgr_t *, vaddr_t, vaddr_t);
|
||||
boolean_t pmap_remove_c(c_tmgr_t *, vaddr_t, vaddr_t);
|
||||
void pmap_remove_pte(mmu_short_pte_t *);
|
||||
void pmap_enter_kernel(vaddr_t, paddr_t, vm_prot_t);
|
||||
void pmap_remove_kernel(vaddr_t, vaddr_t);
|
||||
void pmap_protect_kernel(vaddr_t, vaddr_t, vm_prot_t);
|
||||
boolean_t pmap_extract_kernel(vaddr_t, paddr_t *);
|
||||
vaddr_t pmap_get_pteinfo(u_int, pmap_t *, c_tmgr_t **);
|
||||
void pmap_pinit(pmap_t);
|
||||
int pmap_dereference(pmap_t);
|
||||
boolean_t is_managed(paddr_t);
|
||||
boolean_t pmap_stroll(pmap_t, vaddr_t, a_tmgr_t **, b_tmgr_t **, c_tmgr_t **,
|
||||
mmu_short_pte_t **, int *, int *, int *);
|
||||
void pmap_bootstrap_copyprom(void);
|
||||
void pmap_takeover_mmu(void);
|
||||
void pmap_bootstrap_setprom(void);
|
||||
|
||||
#ifdef PMAP_DEBUG
|
||||
/* Debugging function definitions */
|
||||
void pv_list(paddr_t, int);
|
||||
#endif /* PMAP_DEBUG */
|
||||
|
||||
/* These are defined in pmap.c */
|
||||
extern struct pmap_physmem_struct avail_mem[];
|
||||
|
||||
#endif /* _SUN3X_MYPMAP_H */
|
||||
#endif /* _SUN3X_PMAPPVT_H */
|
||||
|
|
|
|||
Loading…
Reference in New Issue