netbsd dirent.h, import sys/sys *.h, mfs cleanup

. add all sys/sys headers not already present to help compiling
	. take netbsd dirent.h and struct dirent; main result is
	  introducing d_type and d_namlen that have to be set by getdents()
	  in all FS code implementing it
	. d_off is gone
	. alignment of the struct has become 8 bytes instead of 4
	. remove _MAX_BLOCK_SIZE, _MIN_BLOCK_SIZE, _STATIC_BLOCK_SIZE
	. libminlib: cleanup unused yet duplicate code
	. mfs: throw out the long-broken v1, v2 support
	. new test for dirent contents filled by getdents()

Change-Id: I1459755c7ba5e5d1c9396d3a587ce6e63ddc283e
This commit is contained in:
Ben Gras
2014-03-01 09:04:59 +01:00
committed by sambuc
parent 664b726cd3
commit 6c8f7fc3ba
260 changed files with 37541 additions and 529 deletions
+271
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/* $NetBSD: pmap.h,v 1.1 2012/10/03 00:51:46 christos Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)pmap.h 8.1 (Berkeley) 6/10/93
*/
/*
* Copyright (c) 1987 Carnegie-Mellon University
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)pmap.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _COMMON_PMAP_H_
#define _COMMON_PMAP_H_
#include <uvm/uvm_stat.h>
#ifdef UVMHIST
UVMHIST_DECL(pmapexechist);
UVMHIST_DECL(pmaphist);
#endif
/*
* The user address space is mapped using a two level structure where
* virtual address bits 31..22 are used to index into a segment table which
* points to a page worth of PTEs (4096 page can hold 1024 PTEs).
* Bits 21..12 are then used to index a PTE which describes a page within
* a segment.
*/
#define pmap_trunc_seg(x) ((vaddr_t)(x) & ~SEGOFSET)
#define pmap_round_seg(x) (((vaddr_t)(x) + SEGOFSET) & ~SEGOFSET)
/*
* Each seg_tab point an array of pt_entry [NPTEPG]
*/
typedef union pmap_segtab {
union pmap_segtab * seg_seg[PMAP_SEGTABSIZE];
pt_entry_t * seg_tab[PMAP_SEGTABSIZE];
} pmap_segtab_t;
#ifdef _KERNEL
struct pmap;
typedef bool (*pte_callback_t)(struct pmap *, vaddr_t, vaddr_t,
pt_entry_t *, uintptr_t);
pt_entry_t *pmap_pte_lookup(struct pmap *, vaddr_t);
pt_entry_t *pmap_pte_reserve(struct pmap *, vaddr_t, int);
void pmap_pte_process(struct pmap *, vaddr_t, vaddr_t, pte_callback_t,
uintptr_t);
void pmap_segtab_activate(struct pmap *, struct lwp *);
void pmap_segtab_init(struct pmap *);
void pmap_segtab_destroy(struct pmap *, pte_callback_t, uintptr_t);
extern kmutex_t pmap_segtab_lock;
#endif /* _KERNEL */
/*
* Per TLB (normally same as CPU) asid info
*/
struct pmap_asid_info {
LIST_ENTRY(pmap_asid_info) pai_link;
uint32_t pai_asid; /* TLB address space tag */
};
#define TLBINFO_LOCK(ti) mutex_spin_enter((ti)->ti_lock)
#define TLBINFO_UNLOCK(ti) mutex_spin_exit((ti)->ti_lock)
#define PMAP_PAI_ASIDVALID_P(pai, ti) ((pai)->pai_asid != 0)
#define PMAP_PAI(pmap, ti) (&(pmap)->pm_pai[tlbinfo_index(ti)])
#define PAI_PMAP(pai, ti) \
((pmap_t)((intptr_t)(pai) \
- offsetof(struct pmap, pm_pai[tlbinfo_index(ti)])))
/*
* Machine dependent pmap structure.
*/
struct pmap {
#ifdef MULTIPROCESSOR
__cpuset_t pm_active; /* pmap was active on ... */
__cpuset_t pm_onproc; /* pmap is active on ... */
volatile u_int pm_shootdown_pending;
#endif
pmap_segtab_t * pm_segtab; /* pointers to pages of PTEs */
u_int pm_count; /* pmap reference count */
u_int pm_flags;
#define PMAP_DEFERRED_ACTIVATE 0x0001
struct pmap_statistics pm_stats; /* pmap statistics */
vaddr_t pm_minaddr;
vaddr_t pm_maxaddr;
struct pmap_asid_info pm_pai[1];
};
enum tlb_invalidate_op {
TLBINV_NOBODY=0,
TLBINV_ONE=1,
TLBINV_ALLUSER=2,
TLBINV_ALLKERNEL=3,
TLBINV_ALL=4
};
struct pmap_tlb_info {
char ti_name[8];
uint32_t ti_asid_hint; /* probable next ASID to use */
uint32_t ti_asids_free; /* # of ASIDs free */
#define tlbinfo_noasids_p(ti) ((ti)->ti_asids_free == 0)
kmutex_t *ti_lock;
u_int ti_wired; /* # of wired TLB entries */
uint32_t ti_asid_max;
LIST_HEAD(, pmap_asid_info) ti_pais; /* list of active ASIDs */
#ifdef MULTIPROCESSOR
pmap_t ti_victim;
uint32_t ti_synci_page_bitmap; /* page indices needing a syncicache */
__cpuset_t ti_cpu_mask; /* bitmask of CPUs sharing this TLB */
enum tlb_invalidate_op ti_tlbinvop;
u_int ti_index;
#define tlbinfo_index(ti) ((ti)->ti_index)
struct evcnt ti_evcnt_synci_asts;
struct evcnt ti_evcnt_synci_all;
struct evcnt ti_evcnt_synci_pages;
struct evcnt ti_evcnt_synci_deferred;
struct evcnt ti_evcnt_synci_desired;
struct evcnt ti_evcnt_synci_duplicate;
#else
#define tlbinfo_index(ti) (0)
#endif
struct evcnt ti_evcnt_asid_reinits;
u_long ti_asid_bitmap[256 / (sizeof(u_long) * 8)];
};
#ifdef _KERNEL
struct pmap_kernel {
struct pmap kernel_pmap;
#ifdef MULTIPROCESSOR
struct pmap_asid_info kernel_pai[MAXCPUS-1];
#endif
};
struct pmap_limits {
paddr_t avail_start;
paddr_t avail_end;
vaddr_t virtual_end;
};
/*
* The pools from which pmap structures and sub-structures are allocated.
*/
extern struct pool pmap_pmap_pool;
extern struct pool pmap_pv_pool;
extern struct pool_allocator pmap_pv_page_allocator;
extern struct pmap_kernel kernel_pmap_store;
extern struct pmap_tlb_info pmap_tlb0_info;
#ifdef MULTIPROCESSOR
extern struct pmap_tlb_info *pmap_tlbs[MAXCPUS];
extern u_int pmap_ntlbs;
#endif
extern struct pmap_limits pmap_limits;
#define pmap_wired_count(pmap) ((pmap)->pm_stats.wired_count)
#define pmap_resident_count(pmap) ((pmap)->pm_stats.resident_count)
/*
* Bootstrap the system enough to run with virtual memory.
*/
void pmap_remove_all(pmap_t);
void pmap_set_modified(paddr_t);
bool pmap_page_clear_attributes(struct vm_page_md *, u_int);
void pmap_page_set_attributes(struct vm_page_md *, u_int);
void pmap_pvlist_lock_init(size_t);
#define PMAP_WB 0
#define PMAP_WBINV 1
#define PMAP_INV 2
#ifdef MULTIPROCESSOR
void pmap_tlb_shootdown_process(void);
bool pmap_tlb_shootdown_bystanders(pmap_t pmap);
void pmap_tlb_info_attach(struct pmap_tlb_info *, struct cpu_info *);
void pmap_md_tlb_info_attach(struct pmap_tlb_info *, struct cpu_info *);
void pmap_syncicache_ast(struct cpu_info *);
void pmap_syncicache_wanted(struct cpu_info *);
void pmap_syncicache(vaddr_t, uint32_t);
#endif
void pmap_tlb_info_init(struct pmap_tlb_info *);
void pmap_tlb_info_evcnt_attach(struct pmap_tlb_info *);
void pmap_tlb_asid_acquire(pmap_t, struct lwp *l);
void pmap_tlb_asid_deactivate(pmap_t);
void pmap_tlb_asid_release_all(pmap_t);
int pmap_tlb_update_addr(pmap_t, vaddr_t, uint32_t, u_int);
#define PMAP_TLB_NEED_IPI 0x01
#define PMAP_TLB_INSERT 0x02
void pmap_tlb_invalidate_addr(pmap_t, vaddr_t);
void pmap_tlb_check(pmap_t, bool (*)(void *, vaddr_t, tlb_asid_t, pt_entry_t));
void pmap_tlb_asid_check(void);
uint16_t pmap_pvlist_lock(struct vm_page_md *, bool);
#define PMAP_STEAL_MEMORY /* enable pmap_steal_memory() */
#define PMAP_GROWKERNEL /* enable pmap_growkernel() */
/*
* Alternate mapping hooks for pool pages. Avoids thrashing the TLB.
*/
vaddr_t pmap_map_poolpage(paddr_t);
paddr_t pmap_unmap_poolpage(vaddr_t);
struct vm_page *pmap_md_alloc_poolpage(int);
#define PMAP_ALLOC_POOLPAGE(flags) pmap_md_alloc_poolpage(flags)
#define PMAP_MAP_POOLPAGE(pa) pmap_map_poolpage(pa)
#define PMAP_UNMAP_POOLPAGE(va) pmap_unmap_poolpage(va)
#endif /* _KERNEL */
#endif /* _COMMON_PMAP_H_ */
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/* $NetBSD: tlb.h,v 1.1 2012/10/03 00:51:47 christos Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _COMMON_PMAP_TLB_TLB_H_
#define _COMMON_PMAP_TLB_TLB_H_
#if defined(_KERNEL) || defined(_KMEMUSER)
struct tlbmask;
struct tlb_md_ops {
void (*md_tlb_set_asid)(tlb_asid_t);
tlb_asid_t
(*md_tlb_get_asid)(void);
void (*md_tlb_invalidate_all)(void);
void (*md_tlb_invalidate_globals)(void);
void (*md_tlb_invalidate_asids)(tlb_asid_t, tlb_asid_t);
void (*md_tlb_invalidate_addr)(vaddr_t, tlb_asid_t);
bool (*md_tlb_update_addr)(vaddr_t, tlb_asid_t, pt_entry_t, bool);
void (*md_tlb_read_entry)(size_t, struct tlbmask *);
void (*md_tlb_write_entry)(size_t, const struct tlbmask *);
u_int (*md_tlb_record_asids)(u_long *);
void (*md_tlb_dump)(void (*)(const char *, ...));
void (*md_tlb_walk)(void *, bool (*)(void *, vaddr_t, tlb_asid_t,
pt_entry_t));
};
tlb_asid_t
tlb_get_asid(void);
void tlb_set_asid(tlb_asid_t);
void tlb_invalidate_all(void);
void tlb_invalidate_globals(void);
void tlb_invalidate_asids(tlb_asid_t, tlb_asid_t);
void tlb_invalidate_addr(vaddr_t, tlb_asid_t);
bool tlb_update_addr(vaddr_t, tlb_asid_t, pt_entry_t, bool);
u_int tlb_record_asids(u_long *);
void tlb_enter_addr(size_t, const struct tlbmask *);
void tlb_read_entry(size_t, struct tlbmask *);
void tlb_write_entry(size_t, const struct tlbmask *);
void tlb_walk(void *, bool (*)(void *, vaddr_t, tlb_asid_t, pt_entry_t));
void tlb_dump(void (*)(const char *, ...));
#endif /* _KERNEL || _KMEMUSER */
#endif /* !_COMMON_PMAP_TLB_TLB_H_ */
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/* $NetBSD: vmpagemd.h,v 1.1 2012/10/03 00:51:47 christos Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Raytheon BBN Technologies Corp and Defense Advanced Research Projects
* Agency and which was developed by Matt Thomas of 3am Software Foundry.
*
* This material is based upon work supported by the Defense Advanced Research
* Projects Agency and Space and Naval Warfare Systems Center, Pacific, under
* Contract No. N66001-09-C-2073.
* Approved for Public Release, Distribution Unlimited
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _COMMON_PMAP_TLB_VMPAGEMD_H_
#define _COMMON_PMAP_TLB_VMPAGEMD_H_
#ifdef _LOCORE
#error use assym.h instead
#endif
#ifdef _MODULE
#error this file should not be included by loadable kernel modules
#endif
#include "opt_modular.h"
#include "opt_multiprocessor.h"
#include <sys/mutex.h>
#define __HAVE_VM_PAGE_MD
typedef struct pv_entry {
struct pv_entry *pv_next;
struct pmap *pv_pmap;
vaddr_t pv_va;
} *pv_entry_t;
#define VM_PAGEMD_REFERENCED 0x0001 /* page has been recently referenced */
#define VM_PAGEMD_MODIFIED 0x0002 /* page has been modified */
#define VM_PAGEMD_POOLPAGE 0x0004 /* page is used as a poolpage */
#define VM_PAGEMD_EXECPAGE 0x0008 /* page is exec mapped */
#ifdef __PMAP_VIRTUAL_CACHE_ALIASES
#define VM_PAGEMD_UNCACHED 0x0010 /* page is mapped uncached */
#endif
#ifdef __PMAP_VIRTUAL_CACHE_ALIASES
#define VM_PAGEMD_CACHED_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_UNCACHED) == 0)
#define VM_PAGEMD_UNCACHED_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_UNCACHED) != 0)
#endif
#define VM_PAGEMD_MODIFIED_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_MODIFIED) != 0)
#define VM_PAGEMD_REFERENCED_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_REFERENCED) != 0)
#define VM_PAGEMD_POOLPAGE_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_POOLPAGE) != 0)
#define VM_PAGEMD_EXECPAGE_P(mdpg) (((mdpg)->mdpg_attrs & VM_PAGEMD_EXECPAGE) != 0)
struct vm_page_md {
volatile u_int mdpg_attrs; /* page attributes */
struct pv_entry mdpg_first; /* pv_entry first */
#if defined(MULTIPROCESSOR) || defined(MODULAR)
kmutex_t *mdpg_lock; /* pv list lock */
#define VM_PAGEMD_PVLIST_LOCK_INIT(mdpg) \
(mdpg)->mdpg_lock = NULL
#define VM_PAGEMD_PVLIST_LOCK(pg, list_change) \
pmap_pvlist_lock(mdpg, list_change)
#define VM_PAGEMD_PVLIST_UNLOCK(mdpg) \
mutex_spin_exit((mdpg)->mdpg_lock)
#define VM_PAGEMD_PVLIST_LOCKED_P(mdpg) \
mutex_owner((mdpg)->mdpg_lock)
#define VM_PAGEMD_PVLIST_GEN(mdpg) \
((uint16_t)((mdpg)->mdpg_attrs >> 16))
#else
#define VM_PAGEMD_PVLIST_LOCK_INIT(mdpg) do { } while (/*CONSTCOND*/ 0)
#define VM_PAGEMD_PVLIST_LOCK(mdpg, lc) (mutex_spin_enter(&pmap_pvlist_mutex), 0)
#define VM_PAGEMD_PVLIST_UNLOCK(mdpg) mutex_spin_exit(&pmap_pvlist_mutex)
#define VM_PAGEMD_PVLIST_LOCKED_P(mdpg) true
#define VM_PAGEMD_PVLIST_GEN(mdpg) (0)
#endif /* MULTIPROCESSOR || MODULAR */
};
#define VM_MDPAGE_INIT(pg) \
do { \
(pg)->mdpage.mdpg_first.pv_next = NULL; \
(pg)->mdpage.mdpg_first.pv_pmap = NULL; \
(pg)->mdpage.mdpg_first.pv_va = (pg)->phys_addr; \
(pg)->mdpage.mdpg_attrs = 0; \
VM_PAGEMD_PVLIST_LOCK_INIT(&(pg)->mdpage); \
} while (/* CONSTCOND */ 0)
#endif /* __COMMON_PMAP_TLB_VMPAGEMD_H_ */