Date: Fri, 4 Jan 2008 18:12:28 GMT From: Rafal Jaworowski <raj@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 132500 for review Message-ID: <200801041812.m04ICScs032851@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=132500 Change 132500 by raj@raj_mimi on 2008/01/04 18:12:24 E500 pmap: initial conversion to the kobj-based pmap dispatcher scheme. Needs further work. Affected files ... .. //depot/projects/e500/sys/powerpc/booke/machdep.c#6 edit .. //depot/projects/e500/sys/powerpc/booke/pmap.c#6 edit .. //depot/projects/e500/sys/powerpc/include/mmuvar.h#2 edit Differences ... ==== //depot/projects/e500/sys/powerpc/booke/machdep.c#6 (text+ko) ==== @@ -125,6 +125,7 @@ #include <machine/psl.h> #include <machine/trap.h> #include <machine/md_var.h> +#include <machine/mmuvar.h> #include <machine/pmap.h> #include <machine/sigframe.h> #include <machine/metadata.h> @@ -394,8 +395,10 @@ if (boothowto & RB_KDB) kdb_enter("Boot flags requested debugger"); #endif + kobj_machdep_init(); /* Initialise virtual memory. */ + pmap_mmu_install(MMU_TYPE_BOOKE, 0); pmap_bootstrap(startkernel, end); debugf("MSR = 0x%08x\n", mfmsr()); //tlb1_print_entries(); ==== //depot/projects/e500/sys/powerpc/booke/pmap.c#6 (text+ko) ==== @@ -1,4 +1,5 @@ /*- + * Copyright (C) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> * Copyright (C) 2006 Semihalf, Marian Balakowicz <m8@semihalf.com> * All rights reserved. * @@ -29,22 +30,22 @@ * a few other pmap modules from the FreeBSD tree. */ /* - * E500 pmap implementation notes: + * VM layout notes: * * Kernel and user threads run within one common virtual address space * defined by AS=0. * * Virtual address space layout: * ----------------------------- - * 0x0000_0000 - 0xbfffefff : user process - * 0xc000_0000 - 0xc1ffffff : kerel reserved + * 0x0000_0000 - 0xbfff_efff : user process + * 0xc000_0000 - 0xc1ff_ffff : kerel reserved * 0xc000_0000 - kernelend : kernel code &data - * 0xc1ff_c000 - 0xc2000000 : kstack0 - * 0xc200_0000 - 0xffefffff : KVA + * 0xc1ff_c000 - 0xc200_0000 : kstack0 + * 0xc200_0000 - 0xffef_ffff : KVA * 0xc200_0000 - 0xc200_3fff : reserved for page zero/copy * 0xc200_4000 - ptbl buf end: reserved for ptbl bufs * ptbl buf end- 0xffef_ffff : actual free KVA space - * 0xfff0_0000 - 0xffffffff : CCSRBAR region + * 0xfff0_0000 - 0xffff_ffff : I/O devices region */ #include <sys/types.h> @@ -81,8 +82,14 @@ #include <machine/spr.h> #include <machine/vmparam.h> #include <machine/md_var.h> +#include <machine/mmuvar.h> #include <machine/pte.h> +#include "mmu_if.h" + +#define DEBUG +#undef DEBUG + #ifdef DEBUG #define debugf(fmt, args...) printf(fmt, ##args) #else @@ -101,53 +108,39 @@ /* Kernel physical load address. */ extern uint32_t kernload; -/* Message buffer. */ -struct msgbuf *msgbufp; - -/* Map of physical memory regions. */ -vm_offset_t phys_avail[128]; -u_int phys_avail_count; - #define MEM_REGIONS 8 struct mem_region availmem_regions[MEM_REGIONS]; int availmem_regions_sz; -/* First and last available kernel virtual addresses. */ -vm_offset_t virtual_avail; -vm_offset_t virtual_end; -vm_offset_t kernel_vm_end; +/* Reserved KVA space and mutex for mmu_booke_zero_page. */ +static vm_offset_t zero_page_va; +static struct mtx zero_page_mutex; -/* Reserved KVA space and mutex for pmap_zero_page. */ -vm_offset_t pmap_zero_page_va; -struct mtx pmap_zero_page_mutex; - /* - * Reserved KVA space for pmap_zero_page_idle. This is used - * by idle thred only, no mutex required. + * Reserved KVA space for mmu_booke_zero_page_idle. This is used + * by idle thred only, no lock required. */ -vm_offset_t pmap_zero_page_idle_va; +static vm_offset_t zero_page_idle_va; -/* Reserved KVA space and mutex for pmap_copy_page. */ -vm_offset_t pmap_copy_page_src_va; -vm_offset_t pmap_copy_page_dst_va; -struct mtx pmap_copy_page_mutex; +/* Reserved KVA space and mutex for mmu_booke_copy_page. */ +static vm_offset_t copy_page_src_va; +static vm_offset_t copy_page_dst_va; +static struct mtx copy_page_mutex; /**************************************************************************/ /* PMAP */ /**************************************************************************/ -static void pmap_enter_locked(pmap_t, vm_offset_t, vm_page_t, vm_prot_t, boolean_t); - -/* Kernel pmap */ -struct pmap kernel_pmap_store; +static void mmu_booke_enter_locked(mmu_t, pmap_t, vm_offset_t, vm_page_t, + vm_prot_t, boolean_t); unsigned int kptbl_min; /* Index of the first kernel ptbl. */ unsigned int kernel_ptbls; /* Number of KVA ptbls. */ -int pmap_pagedaemon_waken; +static int pagedaemon_waken; /* - * If user pmap is processed with pmap_remove and the resident count + * If user pmap is processed with mmu_booke_remove and the resident count * drops to 0, there are no more pages to remove, so we need not continue. */ #define PMAP_REMOVE_DONE(pmap) \ @@ -160,7 +153,7 @@ /**************************************************************************/ /* Translation ID busy table */ -volatile pmap_t tidbusy[TID_MAX + 1]; +static volatile pmap_t tidbusy[TID_MAX + 1]; /* * Actual maximum number of TLB0 entries. @@ -174,14 +167,14 @@ #define TLB0_NWAYS (tlb0_nways) #define TLB0_ENTRIES_PER_WAY (tlb0_nentries_per_way) -/* Pointer to kernel tlb0 table, allocated in pmap_bootstrap() */ +/* Pointer to kernel tlb0 table, allocated in mmu_booke_bootstrap() */ tlb_entry_t *tlb0; /* * Spinlock to assure proper locking between threads and * between tlb miss handler and kernel. */ -struct mtx tlb0_mutex; +static struct mtx tlb0_mutex; #define TLB1_SIZE 16 @@ -233,23 +226,22 @@ #define PMAP_SHPGPERPROC 200 #endif -static vm_paddr_t pte_vatopa(pmap_t, vm_offset_t); - static void ptbl_init(void); static struct ptbl_buf *ptbl_buf_alloc(void); static void ptbl_buf_free(struct ptbl_buf *); static void ptbl_free_pmap_ptbl(pmap_t, pte_t *); -static void ptbl_alloc(pmap_t, unsigned int); -static void ptbl_free(pmap_t, unsigned int); -static void ptbl_hold(pmap_t, unsigned int); -static int ptbl_unhold(pmap_t, unsigned int); +static void ptbl_alloc(mmu_t, pmap_t, unsigned int); +static void ptbl_free(mmu_t, pmap_t, unsigned int); +static void ptbl_hold(mmu_t, pmap_t, unsigned int); +static int ptbl_unhold(mmu_t, pmap_t, unsigned int); -static pte_t *pte_find(pmap_t, vm_offset_t); -static void pte_enter(pmap_t, vm_page_t, vm_offset_t, u_int32_t); -static int pte_remove(pmap_t, vm_offset_t, u_int8_t); +static vm_paddr_t pte_vatopa(mmu_t, pmap_t, vm_offset_t); +static pte_t *pte_find(mmu_t, pmap_t, vm_offset_t); +void pte_enter(mmu_t, pmap_t, vm_page_t, vm_offset_t, u_int32_t); +static int pte_remove(mmu_t, pmap_t, vm_offset_t, u_int8_t); -static pv_entry_t pv_alloc(void); +pv_entry_t pv_alloc(void); static void pv_free(pv_entry_t); static void pv_insert(pmap_t, vm_offset_t, vm_page_t); static void pv_remove(pmap_t, vm_offset_t, vm_page_t); @@ -267,17 +259,122 @@ static struct mtx ptbl_buf_freelist_lock; /* Base address of kva space allocated fot ptbl bufs. */ -vm_offset_t ptbl_buf_pool_vabase; +static vm_offset_t ptbl_buf_pool_vabase; /* Pointer to ptbl_buf structures. */ -struct ptbl_buf *ptbl_bufs; +static struct ptbl_buf *ptbl_bufs; + +/* + * Kernel MMU interface + */ +vm_offset_t mmu_booke_addr_hint(mmu_t, vm_object_t, vm_offset_t, vm_size_t); +void mmu_booke_change_wiring(mmu_t, pmap_t, vm_offset_t, boolean_t); +void mmu_booke_clear_modify(mmu_t, vm_page_t); +void mmu_booke_clear_reference(mmu_t, vm_page_t); +void mmu_booke_copy(pmap_t, pmap_t, vm_offset_t, vm_size_t, vm_offset_t); +void mmu_booke_copy_page(mmu_t, vm_page_t, vm_page_t); +void mmu_booke_enter(mmu_t, pmap_t, vm_offset_t, vm_page_t, vm_prot_t, boolean_t); +void mmu_booke_enter_object(mmu_t, pmap_t, vm_offset_t, vm_offset_t, + vm_page_t, vm_prot_t); +void mmu_booke_enter_quick(mmu_t, pmap_t, vm_offset_t, vm_page_t, vm_prot_t); +vm_paddr_t mmu_booke_extract(mmu_t, pmap_t, vm_offset_t); +vm_page_t mmu_booke_extract_and_hold(mmu_t, pmap_t, vm_offset_t, vm_prot_t); +void mmu_booke_init(mmu_t); +boolean_t mmu_booke_is_modified(mmu_t, vm_page_t); +boolean_t mmu_booke_is_prefaultable(mmu_t, pmap_t, vm_offset_t); +boolean_t mmu_booke_ts_referenced(mmu_t, vm_page_t); +vm_offset_t mmu_booke_map(mmu_t, vm_offset_t *, vm_offset_t, vm_offset_t, int); +int mmu_booke_mincore(mmu_t, pmap_t, vm_offset_t); +void mmu_booke_object_init_pt(mmu_t, pmap_t, vm_offset_t, vm_object_t, + vm_pindex_t, vm_size_t); +boolean_t mmu_booke_page_exists_quick(mmu_t, pmap_t, vm_page_t); +void mmu_booke_page_init(vm_page_t); +void mmu_booke_pinit(mmu_t, pmap_t); +void mmu_booke_pinit0(mmu_t, pmap_t); +void mmu_booke_protect(mmu_t, pmap_t, vm_offset_t, vm_offset_t, vm_prot_t); +void mmu_booke_qenter(mmu_t, vm_offset_t, vm_page_t *, int); +void mmu_booke_qremove(mmu_t, vm_offset_t, int); +void mmu_booke_release(mmu_t, pmap_t); +void mmu_booke_remove(mmu_t, pmap_t, vm_offset_t, vm_offset_t); +void mmu_booke_remove_all(mmu_t, vm_page_t); +void mmu_booke_remove_write(mmu_t, vm_page_t); +void mmu_booke_zero_page(mmu_t, vm_page_t); +void mmu_booke_zero_page_area(mmu_t, vm_page_t, int, int); +void mmu_booke_zero_page_idle(mmu_t, vm_page_t); +void mmu_booke_activate(mmu_t, struct thread *); +void mmu_booke_deactivate(mmu_t, struct thread *); +void mmu_booke_bootstrap(mmu_t, vm_offset_t, vm_offset_t); +void *mmu_booke_mapdev(mmu_t, vm_offset_t, vm_size_t); +void mmu_booke_unmapdev(mmu_t, vm_offset_t, vm_size_t); +vm_offset_t mmu_booke_kextract(mmu_t, vm_offset_t); +void mmu_booke_kenter(mmu_t, vm_offset_t, vm_offset_t); +void mmu_booke_kremove(mmu_t, vm_offset_t); +boolean_t mmu_booke_dev_direct_mapped(mmu_t, vm_offset_t, vm_size_t); +boolean_t mmu_booke_page_executable(mmu_t, vm_page_t); + +static mmu_method_t mmu_booke_methods[] = { + /* pmap dispatcher interface */ + MMUMETHOD(mmu_addr_hint, mmu_booke_addr_hint), + MMUMETHOD(mmu_change_wiring, mmu_booke_change_wiring), + MMUMETHOD(mmu_clear_modify, mmu_booke_clear_modify), + MMUMETHOD(mmu_clear_reference, mmu_booke_clear_reference), + MMUMETHOD(mmu_copy, mmu_booke_copy), + MMUMETHOD(mmu_copy_page, mmu_booke_copy_page), + MMUMETHOD(mmu_enter, mmu_booke_enter), + MMUMETHOD(mmu_enter_object, mmu_booke_enter_object), + MMUMETHOD(mmu_enter_quick, mmu_booke_enter_quick), + MMUMETHOD(mmu_extract, mmu_booke_extract), + MMUMETHOD(mmu_extract_and_hold, mmu_booke_extract_and_hold), + MMUMETHOD(mmu_init, mmu_booke_init), + MMUMETHOD(mmu_is_modified, mmu_booke_is_modified), + MMUMETHOD(mmu_is_prefaultable, mmu_booke_is_prefaultable), + MMUMETHOD(mmu_ts_referenced, mmu_booke_ts_referenced), + MMUMETHOD(mmu_map, mmu_booke_map), + MMUMETHOD(mmu_mincore, mmu_booke_mincore), + MMUMETHOD(mmu_object_init_pt, mmu_booke_object_init_pt), + MMUMETHOD(mmu_page_exists_quick,mmu_booke_page_exists_quick), + MMUMETHOD(mmu_page_init, mmu_booke_page_init), + MMUMETHOD(mmu_pinit, mmu_booke_pinit), + MMUMETHOD(mmu_pinit0, mmu_booke_pinit0), + MMUMETHOD(mmu_protect, mmu_booke_protect), + MMUMETHOD(mmu_qenter, mmu_booke_qenter), + MMUMETHOD(mmu_qremove, mmu_booke_qremove), + MMUMETHOD(mmu_release, mmu_booke_release), + MMUMETHOD(mmu_remove, mmu_booke_remove), + MMUMETHOD(mmu_remove_all, mmu_booke_remove_all), + MMUMETHOD(mmu_remove_write, mmu_booke_remove_write), + MMUMETHOD(mmu_zero_page, mmu_booke_zero_page), + MMUMETHOD(mmu_zero_page_area, mmu_booke_zero_page_area), + MMUMETHOD(mmu_zero_page_idle, mmu_booke_zero_page_idle), + MMUMETHOD(mmu_activate, mmu_booke_activate), + MMUMETHOD(mmu_deactivate, mmu_booke_deactivate), + + /* Internal interfaces */ + MMUMETHOD(mmu_bootstrap, mmu_booke_bootstrap), + MMUMETHOD(mmu_dev_direct_mapped,mmu_booke_dev_direct_mapped), + MMUMETHOD(mmu_mapdev, mmu_booke_mapdev), + MMUMETHOD(mmu_kenter, mmu_booke_kenter), + MMUMETHOD(mmu_kextract, mmu_booke_kextract), +/* MMUMETHOD(mmu_kremove, mmu_booke_kremove), */ + MMUMETHOD(mmu_page_executable, mmu_booke_page_executable), + MMUMETHOD(mmu_unmapdev, mmu_booke_unmapdev), + + { 0, 0 } +}; + +static mmu_def_t booke_mmu = { + MMU_TYPE_BOOKE, + mmu_booke_methods, + 0 +}; +MMU_DEF(booke_mmu); /* * This routine defines the region(s) of memory that should * not be tested for the modified bit. */ static __inline int -pmap_track_modified(pmap_t pmap, vm_offset_t va) +mmu_booke_track_modified(pmap_t pmap, vm_offset_t va) { if (pmap == kernel_pmap) return ((va < kmi.clean_sva) || (va >= kmi.clean_eva)); @@ -379,7 +476,7 @@ /* Allocate page table. */ static void -ptbl_alloc(pmap_t pmap, unsigned int pdir_idx) +ptbl_alloc(mmu_t mmu, pmap_t pmap, unsigned int pdir_idx) { vm_page_t mtbl[PTBL_PAGES]; vm_page_t m; @@ -414,8 +511,9 @@ mtbl[i] = m; } - /* Mapin allocated pages into kernel_pmap. */ - pmap_qenter((vm_offset_t)pmap->pm_pdir[pdir_idx], mtbl, PTBL_PAGES); + /* Map in allocated pages into kernel_pmap. */ + mmu_booke_qenter(mmu, (vm_offset_t)pmap->pm_pdir[pdir_idx], mtbl, + PTBL_PAGES); /* Zero whole ptbl. */ bzero((caddr_t)pmap->pm_pdir[pdir_idx], PTBL_PAGES * PAGE_SIZE); @@ -428,7 +526,7 @@ /* Free ptbl pages and invalidate pdir entry. */ static void -ptbl_free(pmap_t pmap, unsigned int pdir_idx) +ptbl_free(mmu_t mmu, pmap_t pmap, unsigned int pdir_idx) { pte_t *ptbl; vm_paddr_t pa; @@ -449,11 +547,11 @@ for (i = 0; i < PTBL_PAGES; i++) { va = ((vm_offset_t)ptbl + (i * PAGE_SIZE)); - pa = pte_vatopa(kernel_pmap, va); + pa = pte_vatopa(mmu, kernel_pmap, va); m = PHYS_TO_VM_PAGE(pa); vm_page_free_zero(m); atomic_subtract_int(&cnt.v_wire_count, 1); - pmap_kremove(va); + mmu_booke_kremove(mmu, va); } ptbl_free_pmap_ptbl(pmap, ptbl); @@ -469,7 +567,7 @@ * Return 1 if ptbl pages were freed. */ static int -ptbl_unhold(pmap_t pmap, unsigned int pdir_idx) +ptbl_unhold(mmu_t mmu, pmap_t pmap, unsigned int pdir_idx) { pte_t *ptbl; vm_paddr_t pa; @@ -492,7 +590,7 @@ /* decrement hold count */ for (i = 0; i < PTBL_PAGES; i++) { - pa = pte_vatopa(kernel_pmap, (vm_offset_t)ptbl + (i * PAGE_SIZE)); + pa = pte_vatopa(mmu, kernel_pmap, (vm_offset_t)ptbl + (i * PAGE_SIZE)); m = PHYS_TO_VM_PAGE(pa); m->wire_count--; } @@ -503,7 +601,7 @@ * the last page. */ if (m->wire_count == 0) { - ptbl_free(pmap, pdir_idx); + ptbl_free(mmu, pmap, pdir_idx); //debugf("ptbl_unhold: e (freed ptbl)\n"); return (1); @@ -518,7 +616,7 @@ * new pte entry is being inserted into ptbl. */ static void -ptbl_hold(pmap_t pmap, unsigned int pdir_idx) +ptbl_hold(mmu_t mmu, pmap_t pmap, unsigned int pdir_idx) { vm_paddr_t pa; pte_t *ptbl; @@ -537,7 +635,7 @@ KASSERT((ptbl != NULL), ("ptbl_hold: null ptbl")); for (i = 0; i < PTBL_PAGES; i++) { - pa = pte_vatopa(kernel_pmap, (vm_offset_t)ptbl + (i * PAGE_SIZE)); + pa = pte_vatopa(mmu, kernel_pmap, (vm_offset_t)ptbl + (i * PAGE_SIZE)); m = PHYS_TO_VM_PAGE(pa); m->wire_count++; } @@ -546,22 +644,22 @@ } /* Allocate pv_entry structure. */ -static __inline pv_entry_t +pv_entry_t pv_alloc(void) { pv_entry_t pv; - //debugf("pv_alloc: s\n"); + debugf("pv_alloc: s\n"); pv_entry_count++; if ((pv_entry_count > pv_entry_high_water) && - (pmap_pagedaemon_waken == 0)) { - pmap_pagedaemon_waken = 1; + (pagedaemon_waken == 0)) { + pagedaemon_waken = 1; wakeup (&vm_pages_needed); } pv = uma_zalloc(pvzone, M_NOWAIT); - //debugf("pv_alloc: s\n"); + debugf("pv_alloc: e\n"); return (pv); } @@ -585,7 +683,8 @@ pv_entry_t pve; //int su = (pmap == kernel_pmap); - //debugf("pv_insert: s (su = %d pmap = 0x%08x va = 0x%08x)\n", su, (u_int32_t)pmap, va); + //debugf("pv_insert: s (su = %d pmap = 0x%08x va = 0x%08x m = 0x%08x)\n", su, + // (u_int32_t)pmap, va, (u_int32_t)m); pve = pv_alloc(); if (pve == NULL) @@ -597,6 +696,7 @@ /* add to pv_list */ PMAP_LOCK_ASSERT(pmap, MA_OWNED); mtx_assert(&vm_page_queue_mtx, MA_OWNED); + TAILQ_INSERT_TAIL(&m->md.pv_list, pve, pv_link); //debugf("pv_insert: e\n"); @@ -638,7 +738,7 @@ * Return 1 if ptbl pages were freed, otherwise return 0. */ static int -pte_remove(pmap_t pmap, vm_offset_t va, u_int8_t flags) +pte_remove(mmu_t mmu, pmap_t pmap, vm_offset_t va, u_int8_t flags) { unsigned int pdir_idx = PDIR_IDX(va); unsigned int ptbl_idx = PTBL_IDX(va); @@ -670,7 +770,7 @@ /* Handle modified pages. */ if (PTE_ISMODIFIED(pte)) { - if (pmap_track_modified(pmap, va)) + if (mmu_booke_track_modified(pmap, va)) vm_page_dirty(m); } @@ -689,7 +789,7 @@ if (flags & PTBL_UNHOLD) { //debugf("pte_remove: e (unhold)\n"); - return (ptbl_unhold(pmap, pdir_idx)); + return (ptbl_unhold(mmu, pmap, pdir_idx)); } //debugf("pte_remove: e\n"); @@ -699,8 +799,8 @@ /* * Insert PTE for a given page and virtual address. */ -static void -pte_enter(pmap_t pmap, vm_page_t m, vm_offset_t va, u_int32_t flags) +void +pte_enter(mmu_t mmu, pmap_t pmap, vm_page_t m, vm_offset_t va, u_int32_t flags) { unsigned int pdir_idx = PDIR_IDX(va); unsigned int ptbl_idx = PTBL_IDX(va); @@ -720,18 +820,18 @@ */ pte = &pmap->pm_pdir[pdir_idx][ptbl_idx]; if (PTE_ISVALID(pte)) { - pte_remove(pmap, va, PTBL_HOLD); + pte_remove(mmu, pmap, va, PTBL_HOLD); } else { /* * pte is not used, increment hold count * for ptbl pages. */ if (pmap != kernel_pmap) - ptbl_hold(pmap, pdir_idx); + ptbl_hold(mmu, pmap, pdir_idx); } } else { /* Allocate page table pages. */ - ptbl_alloc(pmap, pdir_idx); + ptbl_alloc(mmu, pmap, pdir_idx); } /* Flush entry from TLB. */ @@ -763,12 +863,12 @@ /* Return the pa for the given pmap/va. */ static vm_paddr_t -pte_vatopa(pmap_t pmap, vm_offset_t va) +pte_vatopa(mmu_t mmu, pmap_t pmap, vm_offset_t va) { vm_paddr_t pa = 0; pte_t *pte; - pte = pte_find(pmap, va); + pte = pte_find(mmu, pmap, va); if ((pte != NULL) && PTE_ISVALID(pte)) pa = (PTE_PA(pte) | (va & PTE_PA_MASK)); return (pa); @@ -776,7 +876,7 @@ /* Get a pointer to a PTE in a page table. */ static pte_t * -pte_find(pmap_t pmap, vm_offset_t va) +pte_find(mmu_t mmu, pmap_t pmap, vm_offset_t va) { unsigned int pdir_idx = PDIR_IDX(va); unsigned int ptbl_idx = PTBL_IDX(va); @@ -797,16 +897,17 @@ * This is called during e500_init, before the system is really initialized. */ void -pmap_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend) +mmu_booke_bootstrap(mmu_t mmu, vm_offset_t kernelstart, vm_offset_t kernelend) { vm_offset_t phys_kernelend; struct mem_region *mp, *mp1; int cnt, i, j; u_int s, e, sz; + u_int phys_avail_count; vm_size_t physsz, hwphyssz; vm_offset_t kernel_pdir; - debugf("pmap_bootstrap: entered\n"); + debugf("mmu_booke_bootstrap: entered\n"); /* Align kernel start and end address (kernel image). */ kernelstart = trunc_page(kernelstart); @@ -861,18 +962,18 @@ virtual_end = VM_MAX_KERNEL_ADDRESS; /* Allocate KVA space for page zero/copy operations. */ - pmap_zero_page_va = virtual_avail; + zero_page_va = virtual_avail; virtual_avail += PAGE_SIZE; - pmap_zero_page_idle_va = virtual_avail; + zero_page_idle_va = virtual_avail; virtual_avail += PAGE_SIZE; - pmap_copy_page_src_va = virtual_avail; + copy_page_src_va = virtual_avail; virtual_avail += PAGE_SIZE; - pmap_copy_page_dst_va = virtual_avail; + copy_page_dst_va = virtual_avail; virtual_avail += PAGE_SIZE; /* Initialize page zero/copy mutexes. */ - mtx_init(&pmap_zero_page_mutex, "pmap_zero_page", NULL, MTX_DEF); - mtx_init(&pmap_copy_page_mutex, "pmap_copy_page", NULL, MTX_DEF); + mtx_init(&zero_page_mutex, "mmu_booke_zero_page", NULL, MTX_DEF); + mtx_init(©_page_mutex, "mmu_booke_copy_page", NULL, MTX_DEF); /* Initialize tlb0 table mutex. */ mtx_init(&tlb0_mutex, "tlb0", NULL, MTX_SPIN | MTX_RECURSE); @@ -894,8 +995,8 @@ debugf(" kernelend = 0x%08x\n", kernelend); debugf(" kernel size = 0x%08x\n", kernelend - kernelstart); - if (sizeof(phys_avail)/sizeof(phys_avail[0]) < availmem_regions_sz) - panic("pmap_bootstrap: phys_avail too small"); + if (sizeof(phys_avail) / sizeof(phys_avail[0]) < availmem_regions_sz) + panic("mmu_booke_bootstrap: phys_avail too small"); /* * Removed kernel physical address range from avail @@ -1032,19 +1133,19 @@ /* Initialize TLB0 handling. */ tlb0_init(); - debugf("pmap_bootstrap: exit\n"); + debugf("mmu_booke_bootstrap: exit\n"); } /* * Get the physical page address for the given pmap/virtual address. */ vm_paddr_t -pmap_extract(pmap_t pmap, vm_offset_t va) +mmu_booke_extract(mmu_t mmu, pmap_t pmap, vm_offset_t va) { vm_paddr_t pa; PMAP_LOCK(pmap); - pa = pte_vatopa(pmap, va); + pa = pte_vatopa(mmu, pmap, va); PMAP_UNLOCK(pmap); return (pa); @@ -1055,9 +1156,9 @@ * kernel virtual address. */ vm_paddr_t -pmap_kextract(vm_offset_t va) +mmu_booke_kextract(mmu_t mmu, vm_offset_t va) { - return pte_vatopa(kernel_pmap, va); + return pte_vatopa(mmu, kernel_pmap, va); } /* @@ -1066,11 +1167,11 @@ * system needs to map virtual memory. */ void -pmap_init(void) +mmu_booke_init(mmu_t mmu) { int shpgperproc = PMAP_SHPGPERPROC; - //debugf("pmap_init: s\n"); + //debugf("mmu_booke_init: s\n"); /* * Initialize the address space (zone) for the pv entries. Set a @@ -1094,7 +1195,7 @@ /* Initialize ptbl allocation. */ ptbl_init(); - //debugf("pmap_init: e\n"); + //debugf("mmu_booke_init: e\n"); } /* @@ -1103,58 +1204,58 @@ * references recorded. Existing mappings in the region are overwritten. */ void -pmap_qenter(vm_offset_t sva, vm_page_t *m, int count) +mmu_booke_qenter(mmu_t mmu, vm_offset_t sva, vm_page_t *m, int count) { vm_offset_t va; - //debugf("pmap_qenter: s (sva = 0x%08x count = %d)\n", sva, count); + //debugf("mmu_booke_qenter: s (sva = 0x%08x count = %d)\n", sva, count); va = sva; while (count-- > 0) { - pmap_kenter(va, VM_PAGE_TO_PHYS(*m)); + mmu_booke_kenter(mmu, va, VM_PAGE_TO_PHYS(*m)); va += PAGE_SIZE; m++; } - //debugf("pmap_qenter: e\n"); + //debugf("mmu_booke_qenter: e\n"); } /* * Remove page mappings from kernel virtual address space. Intended for - * temporary mappings entered by pmap_qenter. + * temporary mappings entered by mmu_booke_qenter. */ void -pmap_qremove(vm_offset_t sva, int count) +mmu_booke_qremove(mmu_t mmu, vm_offset_t sva, int count) { vm_offset_t va; - //debugf("pmap_qremove: s (sva = 0x%08x count = %d)\n", sva, count); + //debugf("mmu_booke_qremove: s (sva = 0x%08x count = %d)\n", sva, count); va = sva; while (count-- > 0) { - pmap_kremove(va); + mmu_booke_kremove(mmu, va); va += PAGE_SIZE; } - //debugf("pmap_qremove: e\n"); + //debugf("mmu_booke_qremove: e\n"); } /* * Map a wired page into kernel virtual address space. */ void -pmap_kenter(vm_offset_t va, vm_offset_t pa) +mmu_booke_kenter(mmu_t mmu, vm_offset_t va, vm_offset_t pa) { unsigned int pdir_idx = PDIR_IDX(va); unsigned int ptbl_idx = PTBL_IDX(va); u_int32_t flags; pte_t *pte; - //debugf("pmap_kenter: s (pdir_idx = %d ptbl_idx = %d va=0x%08x pa=0x%08x)\n", + //debugf("mmu_booke_kenter: s (pdir_idx = %d ptbl_idx = %d va=0x%08x pa=0x%08x)\n", // pdir_idx, ptbl_idx, va, pa); KASSERT(((va >= VM_MIN_KERNEL_ADDRESS) && (va <= VM_MAX_KERNEL_ADDRESS)), - ("pmap_kenter: invalid va")); + ("mmu_booke_kenter: invalid va")); #if 0 /* assume IO mapping, set I, G bits */ @@ -1178,7 +1279,7 @@ pte = &(kernel_pmap->pm_pdir[pdir_idx][ptbl_idx]); if (PTE_ISVALID(pte)) { - //debugf("pmap_kenter: replacing entry!\n"); + //debugf("mmu_booke_kenter: replacing entry!\n"); /* Flush entry from TLB0 */ tlb0_flush_entry(kernel_pmap, va); @@ -1187,7 +1288,7 @@ pte->rpn = pa & ~PTE_PA_MASK; pte->flags = flags; - //debugf("pmap_kenter: pdir_idx = %d ptbl_idx = %d va=0x%08x " + //debugf("mmu_booke_kenter: pdir_idx = %d ptbl_idx = %d va=0x%08x " // "pa=0x%08x rpn=0x%08x flags=0x%08x\n", // pdir_idx, ptbl_idx, va, pa, pte->rpn, pte->flags); @@ -1196,28 +1297,28 @@ __syncicache((void *)va, PAGE_SIZE); } - //debugf("pmap_kenter: e\n"); + //debugf("mmu_booke_kenter: e\n"); } /* * Remove a page from kernel page table. */ void -pmap_kremove(vm_offset_t va) +mmu_booke_kremove(mmu_t mmu, vm_offset_t va) { unsigned int pdir_idx = PDIR_IDX(va); unsigned int ptbl_idx = PTBL_IDX(va); pte_t *pte; - //debugf("pmap_kremove: s (va = 0x%08x)\n", va); + //debugf("mmu_booke_kremove: s (va = 0x%08x)\n", va); KASSERT(((va >= VM_MIN_KERNEL_ADDRESS) && (va <= VM_MAX_KERNEL_ADDRESS)), - ("pmap_kremove: invalid va")); + ("mmu_booke_kremove: invalid va")); pte = &(kernel_pmap->pm_pdir[pdir_idx][ptbl_idx]); if (!PTE_ISVALID(pte)) { - //debugf("pmap_kremove: e (invalid pte)\n"); + //debugf("mmu_booke_kremove: e (invalid pte)\n"); return; } @@ -1227,37 +1328,37 @@ pte->flags = 0; pte->rpn = 0; - //debugf("pmap_kremove: e\n"); + //debugf("mmu_booke_kremove: e\n"); } /* * Initialize the pmap associated with process 0. */ void -pmap_pinit0(pmap_t pmap) +mmu_booke_pinit0(mmu_t mmu, pmap_t pmap) { - //debugf("pmap_pinit0: s (pmap = 0x%08x)\n", (u_int32_t)pmap); - pmap_pinit(pmap); + //debugf("mmu_booke_pinit0: s (pmap = 0x%08x)\n", (u_int32_t)pmap); + mmu_booke_pinit(mmu, pmap); PCPU_SET(curpmap, pmap); - //debugf("pmap_pinit0: e\n"); + //debugf("mmu_booke_pinit0: e\n"); } /* * Initialize a preallocated and zeroed pmap structure, * such as one in a vmspace structure. */ -int -pmap_pinit(pmap_t pmap) +void +mmu_booke_pinit(mmu_t mmu, pmap_t pmap) { //struct thread *td; //struct proc *p; //td = PCPU_GET(curthread); //p = td->td_proc; - //debugf("pmap_pinit: s (pmap = 0x%08x)\n", (u_int32_t)pmap); - //printf("pmap_pinit: proc %d '%s'\n", p->p_pid, p->p_comm); + //debugf("mmu_booke_pinit: s (pmap = 0x%08x)\n", (u_int32_t)pmap); + //printf("mmu_booke_pinit: proc %d '%s'\n", p->p_pid, p->p_comm); - KASSERT((pmap != kernel_pmap), ("pmap_pinit: initializing kernel_pmap")); + KASSERT((pmap != kernel_pmap), ("mmu_booke_pinit: initializing kernel_pmap")); PMAP_LOCK_INIT(pmap); pmap->pm_tid = 0; @@ -1267,30 +1368,31 @@ TAILQ_INIT(&pmap->ptbl_list); - //debugf("pmap_pinit: e\n"); - return (1); + //debugf("mmu_booke_pinit: e\n"); } /* * Release any resources held by the given physical map. - * Called when a pmap initialized by pmap_pinit is being released. + * Called when a pmap initialized by mmu_booke_pinit is being released. * Should only be called if the map contains no valid mappings. */ void -pmap_release(pmap_t pmap) +mmu_booke_release(mmu_t mmu, pmap_t pmap) { - //debugf("pmap_release: s\n"); + //debugf("mmu_booke_release: s\n"); PMAP_LOCK_DESTROY(pmap); - //debugf("pmap_release: e\n"); + //debugf("mmu_booke_release: e\n"); } +#if 0 /* Not needed, kernel page tables are statically allocated. */ void -pmap_growkernel(vm_offset_t maxkvaddr) +mmu_booke_growkernel(vm_offset_t maxkvaddr) { } +#endif /* * Insert the given physical page at the specified virtual address in the @@ -1298,19 +1400,19 @@ * will be wired down. */ void -pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot, - boolean_t wired) +mmu_booke_enter(mmu_t mmu, pmap_t pmap, vm_offset_t va, vm_page_t m, + vm_prot_t prot, boolean_t wired) { vm_page_lock_queues(); PMAP_LOCK(pmap); - pmap_enter_locked(pmap, va, m, prot, wired); + mmu_booke_enter_locked(mmu, pmap, va, m, prot, wired); vm_page_unlock_queues(); PMAP_UNLOCK(pmap); } static void -pmap_enter_locked(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot, - boolean_t wired) +mmu_booke_enter_locked(mmu_t mmu, pmap_t pmap, vm_offset_t va, vm_page_t m, + vm_prot_t prot, boolean_t wired) { pte_t *pte; vm_paddr_t pa; @@ -1321,17 +1423,17 @@ su = (pmap == kernel_pmap); sync = 0; - //debugf("pmap_enter_locked: s (pmap=0x%08x su=%d tid=%d m=0x%08x va=0x%08x " + //debugf("mmu_booke_enter_locked: s (pmap=0x%08x su=%d tid=%d m=0x%08x va=0x%08x " // "pa=0x%08x prot=0x%08x wired=%d)\n", // (u_int32_t)pmap, su, pmap->pm_tid, // (u_int32_t)m, va, pa, prot, wired); if (su) { KASSERT(((va >= virtual_avail) && (va <= VM_MAX_KERNEL_ADDRESS)), - ("pmap_enter_locked: kernel pmap, non kernel va")); + ("mmu_booke_enter_locked: kernel pmap, non kernel va")); } else { KASSERT((va <= VM_MAXUSER_ADDRESS), - ("pmap_enter_locked: user pmap, non user va")); + ("mmu_booke_enter_locked: user pmap, non user va")); } PMAP_LOCK_ASSERT(pmap, MA_OWNED); @@ -1340,10 +1442,10 @@ * If there is an existing mapping, and the physical address has not * changed, must be protection or wiring change. */ - if (((pte = pte_find(pmap, va)) != NULL) && + if (((pte = pte_find(mmu, pmap, va)) != NULL) && (PTE_ISVALID(pte)) && (PTE_PA(pte) == pa)) { - //debugf("pmap_enter_locked: update\n"); + //debugf("mmu_booke_enter_locked: update\n"); /* Wiring change, just update stats. */ if (wired) { @@ -1371,7 +1473,7 @@ } else { /* Handle modified pages, sense modify status. */ if (PTE_ISMODIFIED(pte)) { - if (pmap_track_modified(pmap, va)) + if (mmu_booke_track_modified(pmap, va)) vm_page_dirty(m); } } @@ -1395,9 +1497,9 @@ * physical address, pte_enter() will delete the old mapping. */ //if ((pte != NULL) && PTE_ISVALID(pte)) - // debugf("pmap_enter_locked: replace\n"); + // debugf("mmu_booke_enter_locked: replace\n"); //else - // debugf("pmap_enter_locked: new\n"); + // debugf("mmu_booke_enter_locked: new\n"); /* Now set up the flags and install the new mapping. */ flags = (PTE_SR | PTE_VALID); @@ -1423,7 +1525,7 @@ flags |= PTE_WIRED; } - pte_enter(pmap, m, va, flags); + pte_enter(mmu, pmap, m, va, flags); /* Flush the real memory from the instruction cache. */ if (prot & VM_PROT_EXECUTE) @@ -1440,16 +1542,16 @@ pmap = PCPU_GET(curpmap); va = 0; - pte = pte_find(pmap, va); + pte = pte_find(mmu, pmap, va); KASSERT(pte == NULL, ("%s:%d", __func__, __LINE__)); flags = PTE_SR | PTE_VALID | PTE_UR; - pte_enter(pmap, m, va, flags); + pte_enter(mmu, pmap, m, va, flags); __syncicache((void *)va, PAGE_SIZE); - pte_remove(pmap, va, PTBL_UNHOLD); + pte_remove(mmu, pmap, va, PTBL_UNHOLD); } - //debugf("pmap_enter_locked: e\n"); + //debugf("mmu_booke_enter_locked: e\n"); } /* @@ -1465,8 +1567,8 @@ * corresponding offset from m_start are mapped. */ void -pmap_enter_object(pmap_t pmap, vm_offset_t start, vm_offset_t end, vm_page_t m_start, - vm_prot_t prot) +mmu_booke_enter_object(mmu_t mmu, pmap_t pmap, vm_offset_t start, >>> TRUNCATED FOR MAIL (1000 lines) <<<
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