/*- * Copyright (C) 2006 Semihalf, Marian Balakowicz * All rights reserved. * * Adapted for Freescale's e500 core CPUs. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ /*- * Copyright (C) 1995, 1996 Wolfgang Solfrank. * Copyright (C) 1995, 1996 TooLs GmbH. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by TooLs GmbH. * 4. The name of TooLs GmbH may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * from: $NetBSD: pmap.h,v 1.17 2000/03/30 16:18:24 jdolecek Exp $ */ #ifndef _MACHINE_PMAP_H_ #define _MACHINE_PMAP_H_ #include #include #include #include #include #include #include #include struct pmap_md { u_int md_index; vm_paddr_t md_paddr; vm_offset_t md_vaddr; vm_size_t md_size; }; #if defined(AIM) #if !defined(NPMAPS) #define NPMAPS 32768 #endif /* !defined(NPMAPS) */ struct slbcontainer; SPLAY_HEAD(slb_tree, slbcontainer); struct pmap { struct mtx pm_mtx; #ifdef __powerpc64__ struct slb_tree pm_slbtree; struct slb *pm_slb; #else register_t pm_sr[16]; #endif cpumask_t pm_active; uint32_t pm_gen_count; /* generation count (pmap lock dropped) */ u_int pm_retries; struct pmap *pmap_phys; struct pmap_statistics pm_stats; }; typedef struct pmap *pmap_t; struct pvo_entry { LIST_ENTRY(pvo_entry) pvo_vlink; /* Link to common virt page */ LIST_ENTRY(pvo_entry) pvo_olink; /* Link to overflow entry */ union { struct pte pte; /* 32 bit PTE */ struct lpte lpte; /* 64 bit PTE */ } pvo_pte; pmap_t pvo_pmap; /* Owning pmap */ vm_offset_t pvo_vaddr; /* VA of entry */ uint64_t pvo_vpn; /* Virtual page number */ }; LIST_HEAD(pvo_head, pvo_entry); struct md_page { u_int64_t mdpg_attrs; struct pvo_head mdpg_pvoh; }; #define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT #define pmap_page_is_mapped(m) (!LIST_EMPTY(&(m)->md.mdpg_pvoh)) #define pmap_page_set_memattr(m, ma) (void)0 /* * Return the VSID corresponding to a given virtual address. * If no VSID is currently defined, it will allocate one, and add * it to a free slot if available. * * NB: The PMAP MUST be locked already. */ uint64_t va_to_vsid(pmap_t pm, vm_offset_t va); int va_to_slb_entry(pmap_t pm, vm_offset_t va, struct slb *); uint64_t allocate_vsid(pmap_t pm, uint64_t esid, int large); void slb_insert(pmap_t pm, struct slb *dst, struct slb *); int vsid_to_esid(pmap_t pm, uint64_t vsid, uint64_t *esid); void free_vsids(pmap_t pm); struct slb *slb_alloc_user_cache(void); void slb_free_user_cache(struct slb *); #else struct pmap { struct mtx pm_mtx; /* pmap mutex */ tlbtid_t pm_tid[MAXCPU]; /* TID to identify this pmap entries in TLB */ cpumask_t pm_active; /* active on cpus */ int pm_refs; /* ref count */ struct pmap_statistics pm_stats; /* pmap statistics */ /* Page table directory, array of pointers to page tables. */ pte_t *pm_pdir[PDIR_NENTRIES]; /* generation count (pmap lock dropped) */ uint32_t pm_gen_count; u_int pm_retries; /* List of allocated ptbl bufs (ptbl kva regions). */ TAILQ_HEAD(, ptbl_buf) pm_ptbl_list; }; typedef struct pmap *pmap_t; struct pv_entry { pmap_t pv_pmap; vm_offset_t pv_va; TAILQ_ENTRY(pv_entry) pv_link; }; typedef struct pv_entry *pv_entry_t; struct md_page { TAILQ_HEAD(, pv_entry) pv_list; }; #define pmap_page_get_memattr(m) VM_MEMATTR_DEFAULT #define pmap_page_is_mapped(m) (!TAILQ_EMPTY(&(m)->md.pv_list)) #define pmap_page_set_memattr(m, ma) (void)0 #endif /* AIM */ extern struct pmap kernel_pmap_store; #define kernel_pmap (&kernel_pmap_store) #ifdef _KERNEL #define PMAP_LOCK(pmap) mtx_lock(&(pmap)->pm_mtx) #define PMAP_LOCK_ASSERT(pmap, type) \ mtx_assert(&(pmap)->pm_mtx, (type)) #define PMAP_LOCK_DESTROY(pmap) mtx_destroy(&(pmap)->pm_mtx) #define PMAP_LOCK_INIT(pmap) mtx_init(&(pmap)->pm_mtx, "pmap", \ NULL, MTX_DEF) #define PMAP_LOCKED(pmap) mtx_owned(&(pmap)->pm_mtx) #define PMAP_MTX(pmap) (&(pmap)->pm_mtx) #define PMAP_TRYLOCK(pmap) mtx_trylock(&(pmap)->pm_mtx) #define PMAP_UNLOCK(pmap) mtx_unlock(&(pmap)->pm_mtx) void pmap_bootstrap(vm_offset_t, vm_offset_t); void pmap_kenter(vm_offset_t va, vm_offset_t pa); void pmap_kremove(vm_offset_t); void *pmap_mapdev(vm_offset_t, vm_size_t); void pmap_unmapdev(vm_offset_t, vm_size_t); void pmap_deactivate(struct thread *); vm_offset_t pmap_kextract(vm_offset_t); int pmap_dev_direct_mapped(vm_offset_t, vm_size_t); boolean_t pmap_mmu_install(char *name, int prio); #define vtophys(va) pmap_kextract((vm_offset_t)(va)) #define PHYS_AVAIL_SZ 128 extern vm_offset_t phys_avail[PHYS_AVAIL_SZ]; extern vm_offset_t virtual_avail; extern vm_offset_t virtual_end; extern vm_offset_t msgbuf_phys; extern int pmap_bootstrapped; extern vm_offset_t pmap_dumpsys_map(struct pmap_md *, vm_size_t, vm_size_t *); extern void pmap_dumpsys_unmap(struct pmap_md *, vm_size_t, vm_offset_t); extern struct pmap_md *pmap_scan_md(struct pmap_md *); #endif #endif /* !_MACHINE_PMAP_H_ */