OpenSolaris_b135/uts/sun4/vm/vm_dep.h
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* UNIX machine dependent virtual memory support.
*/
#ifndef _VM_DEP_H
#define _VM_DEP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <vm/hat_sfmmu.h>
#include <sys/archsystm.h>
#include <sys/memnode.h>
#define GETTICK() gettick()
/* #define for keeping code architecturally neutral */
#define randtick() gettick()
/*
* Per page size free lists. Allocated dynamically.
*/
#define MAX_MEM_TYPES 2 /* 0 = reloc, 1 = noreloc */
#define MTYPE_RELOC 0
#define MTYPE_NORELOC 1
#define PP_2_MTYPE(pp) (PP_ISNORELOC(pp) ? MTYPE_NORELOC : MTYPE_RELOC)
#define MTYPE_INIT(mtype, vp, vaddr, flags, pgsz) \
mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC;
/* mtype init for page_get_replacement_page */
#define MTYPE_PGR_INIT(mtype, flags, pp, mnode, pgcnt) \
mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC;
#define MNODETYPE_2_PFN(mnode, mtype, pfnlo, pfnhi) \
pfnlo = mem_node_config[mnode].physbase; \
pfnhi = mem_node_config[mnode].physmax;
/*
* candidate counters in vm_pagelist.c are indexed by color and range
*/
#define MAX_MNODE_MRANGES MAX_MEM_TYPES
#define MNODE_RANGE_CNT(mnode) MAX_MNODE_MRANGES
#define MNODE_MAX_MRANGE(mnode) (MAX_MEM_TYPES - 1)
#define MTYPE_2_MRANGE(mnode, mtype) (mtype)
/*
* Internal PG_ flags.
*/
#define PGI_RELOCONLY 0x10000 /* acts in the opposite sense to PG_NORELOC */
#define PGI_NOCAGE 0x20000 /* indicates Cage is disabled */
#define PGI_PGCPHIPRI 0x40000 /* page_get_contig_page priority allocation */
#define PGI_PGCPSZC0 0x80000 /* relocate base pagesize page */
/*
* PGI mtype flags - should not overlap PGI flags
*/
#define PGI_MT_RANGE 0x1000000 /* mtype range */
#define PGI_MT_NEXT 0x2000000 /* get next mtype */
extern page_t ***page_freelists[MMU_PAGE_SIZES][MAX_MEM_TYPES];
extern page_t ***page_cachelists[MAX_MEM_TYPES];
#define PAGE_FREELISTS(mnode, szc, color, mtype) \
(*(page_freelists[szc][mtype][mnode] + (color)))
#define PAGE_CACHELISTS(mnode, color, mtype) \
(*(page_cachelists[mtype][mnode] + (color)))
/*
* There are 'page_colors' colors/bins. Spread them out under a
* couple of locks. There are mutexes for both the page freelist
* and the page cachelist. We want enough locks to make contention
* reasonable, but not too many -- otherwise page_freelist_lock() gets
* so expensive that it becomes the bottleneck!
*/
#define NPC_MUTEX 16
extern kmutex_t *fpc_mutex[NPC_MUTEX];
extern kmutex_t *cpc_mutex[NPC_MUTEX];
/*
* Iterator provides the info needed to convert RA to PA.
* MEM_NODE_ITERATOR_INIT() should be called before
* PAGE_NEXT_PFN_FOR_COLOR() if pfn was not obtained via a previous
* PAGE_NEXT_PFN_FOR_COLOR() call. Iterator caches color 2 hash
* translations requiring initializer call if color or ceq_mask changes,
* even if pfn doesn't. MEM_NODE_ITERATOR_INIT() must also be called before
* PFN_2_COLOR() that uses a valid iterator argument.
*
* plat_mem_node_iterator_init() starts from last mblock in continuation
* case which may be invalid because memory DR. To detect this situation
* mi_genid is checked against mpo_genid which is incremented after a
* memory DR operation. See also plat_slice_add()/plat_slice_del().
*/
#ifdef sun4v
typedef struct mem_node_iterator {
uint_t mi_mnode; /* mnode in which to iterate */
int mi_init; /* set to 1 when first init */
int mi_genid; /* set/checked against mpo_genid */
int mi_last_mblock; /* last mblock visited */
uint_t mi_hash_ceq_mask; /* cached copy of ceq_mask */
uint_t mi_hash_color; /* cached copy of color */
uint_t mi_mnode_mask; /* number of mask bits */
uint_t mi_mnode_pfn_shift; /* mnode position in pfn */
pfn_t mi_mblock_base; /* first valid pfn in current mblock */
pfn_t mi_mblock_end; /* last valid pfn in current mblock */
pfn_t mi_ra_to_pa; /* ra adjustment for current mblock */
pfn_t mi_mnode_pfn_mask; /* mask to obtain mnode id bits */
} mem_node_iterator_t;
#define MEM_NODE_ITERATOR_DECL(it) \
mem_node_iterator_t it
#define MEM_NODE_ITERATOR_INIT(pfn, mnode, szc, it) \
(pfn) = plat_mem_node_iterator_init((pfn), (mnode), (szc), (it), 1)
extern pfn_t plat_mem_node_iterator_init(pfn_t, int, uchar_t,
mem_node_iterator_t *, int);
extern pfn_t plat_rapfn_to_papfn(pfn_t);
extern int interleaved_mnodes;
#else /* sun4v */
#define MEM_NODE_ITERATOR_DECL(it) \
void *it = NULL
#define MEM_NODE_ITERATOR_INIT(pfn, mnode, szc, it)
#endif /* sun4v */
/*
* Return the mnode limits so that hpc_counters length and base
* index can be determined. When interleaved_mnodes is set, we
* create an array only for the first mnode that exists. All other
* mnodes will share the array in this case.
* If interleaved_mnodes is not set, simply return the limits for
* the given mnode.
*/
#define HPM_COUNTERS_LIMITS(mnode, physbase, physmax, first) \
if (!interleaved_mnodes) { \
(physbase) = mem_node_config[(mnode)].physbase; \
(physmax) = mem_node_config[(mnode)].physmax; \
(first) = (mnode); \
} else if ((first) < 0) { \
mem_node_max_range(&(physbase), &(physmax)); \
(first) = (mnode); \
}
#define PAGE_CTRS_WRITE_LOCK(mnode) \
if (!interleaved_mnodes) { \
rw_enter(&page_ctrs_rwlock[(mnode)], RW_WRITER); \
page_freelist_lock(mnode); \
} else { \
/* changing shared hpm_counters */ \
int _i; \
for (_i = 0; _i < max_mem_nodes; _i++) { \
rw_enter(&page_ctrs_rwlock[_i], RW_WRITER); \
page_freelist_lock(_i); \
} \
}
#define PAGE_CTRS_WRITE_UNLOCK(mnode) \
if (!interleaved_mnodes) { \
page_freelist_unlock(mnode); \
rw_exit(&page_ctrs_rwlock[(mnode)]); \
} else { \
int _i; \
for (_i = 0; _i < max_mem_nodes; _i++) { \
page_freelist_unlock(_i); \
rw_exit(&page_ctrs_rwlock[_i]); \
} \
}
/*
* cpu specific color conversion functions
*/
extern uint_t page_get_nsz_color_mask_cpu(uchar_t, uint_t);
#pragma weak page_get_nsz_color_mask_cpu
extern uint_t page_get_nsz_color_cpu(uchar_t, uint_t);
#pragma weak page_get_nsz_color_cpu
extern uint_t page_get_color_shift_cpu(uchar_t, uchar_t);
#pragma weak page_get_color_shift_cpu
extern uint_t page_convert_color_cpu(uint_t, uchar_t, uchar_t);
#pragma weak page_convert_color_cpu
extern pfn_t page_next_pfn_for_color_cpu(pfn_t,
uchar_t, uint_t, uint_t, uint_t, void *);
#pragma weak page_next_pfn_for_color_cpu
extern uint_t page_pfn_2_color_cpu(pfn_t, uchar_t, void *);
#pragma weak page_pfn_2_color_cpu
#define PAGE_GET_COLOR_SHIFT(szc, nszc) \
((&page_get_color_shift_cpu != NULL) ? \
page_get_color_shift_cpu(szc, nszc) : \
(hw_page_array[(nszc)].hp_shift - \
hw_page_array[(szc)].hp_shift))
#define PAGE_CONVERT_COLOR(ncolor, szc, nszc) \
((&page_convert_color_cpu != NULL) ? \
page_convert_color_cpu(ncolor, szc, nszc) : \
((ncolor) << PAGE_GET_COLOR_SHIFT((szc), (nszc))))
#define PFN_2_COLOR(pfn, szc, it) \
((&page_pfn_2_color_cpu != NULL) ? \
page_pfn_2_color_cpu(pfn, szc, it) : \
((pfn & (hw_page_array[0].hp_colors - 1)) >> \
(hw_page_array[szc].hp_shift - \
hw_page_array[0].hp_shift)))
#define PNUM_SIZE(szc) \
(hw_page_array[(szc)].hp_pgcnt)
#define PNUM_SHIFT(szc) \
(hw_page_array[(szc)].hp_shift - hw_page_array[0].hp_shift)
#define PAGE_GET_SHIFT(szc) \
(hw_page_array[(szc)].hp_shift)
#define PAGE_GET_PAGECOLORS(szc) \
(hw_page_array[(szc)].hp_colors)
/*
* This macro calculates the next sequential pfn with the specified
* color using color equivalency mask
*/
#define PAGE_NEXT_PFN_FOR_COLOR(pfn, szc, color, ceq_mask, color_mask, it) \
{ \
ASSERT(((color) & ~(ceq_mask)) == 0); \
if (&page_next_pfn_for_color_cpu == NULL) { \
uint_t pfn_shift = PAGE_BSZS_SHIFT(szc); \
pfn_t spfn = pfn >> pfn_shift; \
pfn_t stride = (ceq_mask) + 1; \
ASSERT((((ceq_mask) + 1) & (ceq_mask)) == 0); \
if (((spfn ^ (color)) & (ceq_mask)) == 0) { \
pfn += stride << pfn_shift; \
} else { \
pfn = (spfn & ~(pfn_t)(ceq_mask)) | (color); \
pfn = (pfn > spfn ? pfn : pfn + stride) << \
pfn_shift; \
} \
} else { \
pfn = page_next_pfn_for_color_cpu(pfn, szc, color, \
ceq_mask, color_mask, it); \
} \
}
/* get the color equivalency mask for the next szc */
#define PAGE_GET_NSZ_MASK(szc, mask) \
((&page_get_nsz_color_mask_cpu == NULL) ? \
((mask) >> (PAGE_GET_SHIFT((szc) + 1) - PAGE_GET_SHIFT(szc))) : \
page_get_nsz_color_mask_cpu(szc, mask))
/* get the color of the next szc */
#define PAGE_GET_NSZ_COLOR(szc, color) \
((&page_get_nsz_color_cpu == NULL) ? \
((color) >> (PAGE_GET_SHIFT((szc) + 1) - PAGE_GET_SHIFT(szc))) : \
page_get_nsz_color_cpu(szc, color))
/* Find the bin for the given page if it was of size szc */
#define PP_2_BIN_SZC(pp, szc) (PFN_2_COLOR(pp->p_pagenum, szc, (void *)(-1)))
#define PP_2_BIN(pp) (PP_2_BIN_SZC(pp, pp->p_szc))
#define PP_2_MEM_NODE(pp) (PFN_2_MEM_NODE(pp->p_pagenum))
#define PC_BIN_MUTEX(mnode, bin, flags) ((flags & PG_FREE_LIST) ? \
&fpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode] : \
&cpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode])
#define FPC_MUTEX(mnode, i) (&fpc_mutex[i][mnode])
#define CPC_MUTEX(mnode, i) (&cpc_mutex[i][mnode])
#define PFN_BASE(pfnum, szc) (pfnum & ~((1 << PAGE_BSZS_SHIFT(szc)) - 1))
/*
* this structure is used for walking free page lists
* controls when to split large pages into smaller pages,
* and when to coalesce smaller pages into larger pages
*/
typedef struct page_list_walker {
uint_t plw_colors; /* num of colors for szc */
uint_t plw_color_mask; /* colors-1 */
uint_t plw_bin_step; /* next bin: 1 or 2 */
uint_t plw_count; /* loop count */
uint_t plw_bin0; /* starting bin */
uint_t plw_bin_marker; /* bin after initial jump */
uint_t plw_bin_split_prev; /* last bin we tried to split */
uint_t plw_do_split; /* set if OK to split */
uint_t plw_split_next; /* next bin to split */
uint_t plw_ceq_dif; /* number of different color groups */
/* to check */
uint_t plw_ceq_mask[MMU_PAGE_SIZES + 1]; /* color equiv mask */
uint_t plw_bins[MMU_PAGE_SIZES + 1]; /* num of bins */
} page_list_walker_t;
void page_list_walk_init(uchar_t szc, uint_t flags, uint_t bin,
int can_split, int use_ceq, page_list_walker_t *plw);
typedef char hpmctr_t;
#ifdef DEBUG
#define CHK_LPG(pp, szc) chk_lpg(pp, szc)
extern void chk_lpg(page_t *, uchar_t);
#else
#define CHK_LPG(pp, szc)
#endif
/*
* page list count per mnode and type.
*/
typedef struct {
pgcnt_t plc_mt_pgmax; /* max page cnt */
pgcnt_t plc_mt_clpgcnt; /* cache list cnt */
pgcnt_t plc_mt_flpgcnt; /* free list cnt - small pages */
pgcnt_t plc_mt_lgpgcnt; /* free list cnt - large pages */
#ifdef DEBUG
struct {
pgcnt_t plc_mts_pgcnt; /* per page size count */
int plc_mts_colors;
pgcnt_t *plc_mtsc_pgcnt; /* per color bin count */
} plc_mts[MMU_PAGE_SIZES];
#endif
} plcnt_t[MAX_MEM_NODES][MAX_MEM_TYPES];
#ifdef DEBUG
#define PLCNT_SZ(ctrs_sz) { \
int szc; \
for (szc = 0; szc < mmu_page_sizes; szc++) { \
int colors = page_get_pagecolors(szc); \
ctrs_sz += (max_mem_nodes * MAX_MEM_TYPES * \
colors * sizeof (pgcnt_t)); \
} \
}
#define PLCNT_INIT(base) { \
int mn, mt, szc, colors; \
for (szc = 0; szc < mmu_page_sizes; szc++) { \
colors = page_get_pagecolors(szc); \
for (mn = 0; mn < max_mem_nodes; mn++) { \
for (mt = 0; mt < MAX_MEM_TYPES; mt++) { \
plcnt[mn][mt].plc_mts[szc]. \
plc_mts_colors = colors; \
plcnt[mn][mt].plc_mts[szc]. \
plc_mtsc_pgcnt = (pgcnt_t *)base; \
base += (colors * sizeof (pgcnt_t)); \
} \
} \
} \
}
#define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \
int bin = PP_2_BIN(pp); \
if (flags & PG_CACHE_LIST) \
atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \
else if (szc) \
atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \
else \
atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \
atomic_add_long(&plcnt[mn][mtype].plc_mts[szc].plc_mts_pgcnt, \
cnt); \
atomic_add_long(&plcnt[mn][mtype].plc_mts[szc]. \
plc_mtsc_pgcnt[bin], cnt); \
}
#else
#define PLCNT_SZ(ctrs_sz)
#define PLCNT_INIT(base)
/* PG_FREE_LIST may not be explicitly set in flags for large pages */
#define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \
if (flags & PG_CACHE_LIST) \
atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \
else if (szc) \
atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \
else \
atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \
}
#endif
#define PLCNT_INCR(pp, mn, mtype, szc, flags) { \
long cnt = (1 << PAGE_BSZS_SHIFT(szc)); \
PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \
}
#define PLCNT_DECR(pp, mn, mtype, szc, flags) { \
long cnt = ((-1) << PAGE_BSZS_SHIFT(szc)); \
PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \
}
/*
* macros to update page list max counts - done when pages transferred
* from RELOC to NORELOC mtype (kcage_init or kcage_assimilate_page).
*/
#define PLCNT_XFER_NORELOC(pp) { \
long cnt = (1 << PAGE_BSZS_SHIFT((pp)->p_szc)); \
int mn = PP_2_MEM_NODE(pp); \
atomic_add_long(&plcnt[mn][MTYPE_NORELOC].plc_mt_pgmax, cnt); \
atomic_add_long(&plcnt[mn][MTYPE_RELOC].plc_mt_pgmax, -cnt); \
}
/*
* macro to modify the page list max counts when memory is added to
* the page lists during startup (add_physmem) or during a DR operation
* when memory is added (kphysm_add_memory_dynamic) or deleted
* (kphysm_del_cleanup).
*/
#define PLCNT_MODIFY_MAX(pfn, cnt) { \
spgcnt_t _cnt = (spgcnt_t)(cnt); \
pgcnt_t _acnt = ABS(_cnt); \
int _mn; \
pgcnt_t _np; \
if (&plat_mem_node_intersect_range != NULL) { \
for (_mn = 0; _mn < max_mem_nodes; _mn++) { \
plat_mem_node_intersect_range((pfn), _acnt, _mn, &_np);\
if (_np == 0) \
continue; \
atomic_add_long(&plcnt[_mn][MTYPE_RELOC].plc_mt_pgmax, \
(_cnt < 0) ? -_np : _np); \
} \
} else { \
pfn_t _pfn = (pfn); \
pfn_t _endpfn = _pfn + _acnt; \
while (_pfn < _endpfn) { \
_mn = PFN_2_MEM_NODE(_pfn); \
_np = MIN(_endpfn, mem_node_config[_mn].physmax + 1) - \
_pfn; \
_pfn += _np; \
atomic_add_long(&plcnt[_mn][MTYPE_RELOC].plc_mt_pgmax, \
(_cnt < 0) ? -_np : _np); \
} \
} \
}
/*
* macro to call page_ctrs_adjust() when memory is added
* during a DR operation.
*/
#define PAGE_CTRS_ADJUST(pfn, cnt, rv) { \
spgcnt_t _cnt = (spgcnt_t)(cnt); \
int _mn; \
pgcnt_t _np; \
if (&plat_mem_node_intersect_range != NULL) { \
for (_mn = 0; _mn < max_mem_nodes; _mn++) { \
plat_mem_node_intersect_range((pfn), _cnt, _mn, &_np); \
if (_np == 0) \
continue; \
if ((rv = page_ctrs_adjust(_mn)) != 0) \
break; \
} \
} else { \
pfn_t _pfn = (pfn); \
pfn_t _endpfn = _pfn + _cnt; \
while (_pfn < _endpfn) { \
_mn = PFN_2_MEM_NODE(_pfn); \
_np = MIN(_endpfn, mem_node_config[_mn].physmax + 1) - \
_pfn; \
_pfn += _np; \
if ((rv = page_ctrs_adjust(_mn)) != 0) \
break; \
} \
} \
}
extern plcnt_t plcnt;
#define MNODE_PGCNT(mn) \
(plcnt[mn][MTYPE_RELOC].plc_mt_clpgcnt + \
plcnt[mn][MTYPE_NORELOC].plc_mt_clpgcnt + \
plcnt[mn][MTYPE_RELOC].plc_mt_flpgcnt + \
plcnt[mn][MTYPE_NORELOC].plc_mt_flpgcnt + \
plcnt[mn][MTYPE_RELOC].plc_mt_lgpgcnt + \
plcnt[mn][MTYPE_NORELOC].plc_mt_lgpgcnt)
#define MNODETYPE_PGCNT(mn, mtype) \
(plcnt[mn][mtype].plc_mt_clpgcnt + \
plcnt[mn][mtype].plc_mt_flpgcnt + \
plcnt[mn][mtype].plc_mt_lgpgcnt)
/*
* macros to loop through the mtype range - MTYPE_START returns -1 in
* mtype if no pages in mnode/mtype and possibly NEXT mtype.
*/
#define MTYPE_START(mnode, mtype, flags) { \
if (plcnt[mnode][mtype].plc_mt_pgmax == 0) { \
ASSERT(mtype == MTYPE_RELOC || \
MNODETYPE_PGCNT(mnode, mtype) == 0 || \
plcnt[mnode][mtype].plc_mt_pgmax != 0); \
MTYPE_NEXT(mnode, mtype, flags); \
} \
}
/*
* if allocation from the RELOC pool failed and there is sufficient cage
* memory, attempt to allocate from the NORELOC pool.
*/
#define MTYPE_NEXT(mnode, mtype, flags) { \
if (!(flags & (PG_NORELOC | PGI_NOCAGE | PGI_RELOCONLY)) && \
(kcage_freemem >= kcage_lotsfree)) { \
if (plcnt[mnode][MTYPE_NORELOC].plc_mt_pgmax == 0) { \
ASSERT(MNODETYPE_PGCNT(mnode, MTYPE_NORELOC) == 0 || \
plcnt[mnode][MTYPE_NORELOC].plc_mt_pgmax != 0); \
mtype = -1; \
} else { \
mtype = MTYPE_NORELOC; \
flags |= PG_NORELOC; \
} \
} else { \
mtype = -1; \
} \
}
/*
* get the ecache setsize for the current cpu.
*/
#define CPUSETSIZE() (cpunodes[CPU->cpu_id].ecache_setsize)
extern struct cpu cpu0;
#define CPU0 &cpu0
#define PAGE_BSZS_SHIFT(szc) TTE_BSZS_SHIFT(szc)
/*
* For sfmmu each larger page is 8 times the size of the previous
* size page.
*/
#define FULL_REGION_CNT(rg_szc) (8)
/*
* The counter base must be per page_counter element to prevent
* races when re-indexing, and the base page size element should
* be aligned on a boundary of the given region size.
*
* We also round up the number of pages spanned by the counters
* for a given region to PC_BASE_ALIGN in certain situations to simplify
* the coding for some non-performance critical routines.
*/
#define PC_BASE_ALIGN ((pfn_t)1 << PAGE_BSZS_SHIFT(mmu_page_sizes-1))
#define PC_BASE_ALIGN_MASK (PC_BASE_ALIGN - 1)
extern int ecache_alignsize;
#define L2CACHE_ALIGN ecache_alignsize
#define L2CACHE_ALIGN_MAX 512
extern int update_proc_pgcolorbase_after_fork;
extern int consistent_coloring;
extern uint_t vac_colors_mask;
extern int vac_size;
extern int vac_shift;
/*
* Kernel mem segment in 64-bit space
*/
extern caddr_t kmem64_base, kmem64_end, kmem64_aligned_end;
extern int kmem64_alignsize, kmem64_szc;
extern uint64_t kmem64_pabase;
extern int max_bootlp_tteszc;
/*
* Maximum and default values for user heap, stack, private and shared
* anonymous memory, and user text and initialized data.
*
* Initial values are defined in architecture specific mach_vm_dep.c file.
* Used by map_pgsz*() routines.
*/
extern size_t max_uheap_lpsize;
extern size_t default_uheap_lpsize;
extern size_t max_ustack_lpsize;
extern size_t default_ustack_lpsize;
extern size_t max_privmap_lpsize;
extern size_t max_uidata_lpsize;
extern size_t max_utext_lpsize;
extern size_t max_shm_lpsize;
/*
* For adjusting the default lpsize, for DTLB-limited page sizes.
*/
extern void adjust_data_maxlpsize(size_t ismpagesize);
/*
* Sanity control. Don't use large pages regardless of user
* settings if there's less than priv or shm_lpg_min_physmem memory installed.
* The units for this variable are 8K pages.
*/
extern pgcnt_t privm_lpg_min_physmem;
extern pgcnt_t shm_lpg_min_physmem;
/*
* AS_2_BIN macro controls the page coloring policy.
* 0 (default) uses various vaddr bits
* 1 virtual=paddr
* 2 bin hopping
*/
#define AS_2_BIN(as, seg, vp, addr, bin, szc) \
switch (consistent_coloring) { \
default: \
cmn_err(CE_WARN, \
"AS_2_BIN: bad consistent coloring value"); \
/* assume default algorithm -> continue */ \
case 0: { \
uint32_t ndx, new; \
int slew = 0; \
pfn_t pfn; \
\
if (vp != NULL && IS_SWAPVP(vp) && \
seg->s_ops == &segvn_ops) \
slew = as_color_bin(as); \
\
pfn = ((uintptr_t)addr >> MMU_PAGESHIFT) + \
(((uintptr_t)addr >> page_coloring_shift) << \
(vac_shift - MMU_PAGESHIFT)); \
if ((szc) == 0 || &page_pfn_2_color_cpu == NULL) { \
pfn += slew; \
bin = PFN_2_COLOR(pfn, szc, NULL); \
} else { \
bin = PFN_2_COLOR(pfn, szc, NULL); \
bin += slew >> (vac_shift - MMU_PAGESHIFT); \
bin &= hw_page_array[(szc)].hp_colors - 1; \
} \
break; \
} \
case 1: \
bin = PFN_2_COLOR(((uintptr_t)addr >> MMU_PAGESHIFT), \
szc, NULL); \
break; \
case 2: { \
int cnt = as_color_bin(as); \
uint_t color_mask = page_get_pagecolors(0) - 1; \
\
/* make sure physical color aligns with vac color */ \
while ((cnt & vac_colors_mask) != \
addr_to_vcolor(addr)) { \
cnt++; \
} \
bin = cnt = cnt & color_mask; \
bin >>= PAGE_GET_COLOR_SHIFT(0, szc); \
/* update per as page coloring fields */ \
cnt = (cnt + 1) & color_mask; \
if (cnt == (as_color_start(as) & color_mask)) { \
cnt = as_color_start(as) = as_color_start(as) + \
PGCLR_LOOPFACTOR; \
} \
as_color_bin(as) = cnt & color_mask; \
break; \
} \
} \
ASSERT(bin < page_get_pagecolors(szc));
/*
* cpu private vm data - accessed thru CPU->cpu_vm_data
* vc_pnum_memseg: tracks last memseg visited in page_numtopp_nolock()
* vc_pnext_memseg: tracks last memseg visited in page_nextn()
* vc_kmptr: unaligned kmem pointer for this vm_cpu_data_t
* vc_kmsize: orignal kmem size for this vm_cpu_data_t
*/
typedef struct {
struct memseg *vc_pnum_memseg;
struct memseg *vc_pnext_memseg;
void *vc_kmptr;
size_t vc_kmsize;
} vm_cpu_data_t;
/* allocation size to ensure vm_cpu_data_t resides in its own cache line */
#define VM_CPU_DATA_PADSIZE \
(P2ROUNDUP(sizeof (vm_cpu_data_t), L2CACHE_ALIGN_MAX))
/* for boot cpu before kmem is initialized */
extern char vm_cpu_data0[];
/*
* Function to get an ecache color bin: F(as, cnt, vcolor).
* the goal of this function is to:
* - to spread a processes' physical pages across the entire ecache to
* maximize its use.
* - to minimize vac flushes caused when we reuse a physical page on a
* different vac color than it was previously used.
* - to prevent all processes to use the same exact colors and trash each
* other.
*
* cnt is a bin ptr kept on a per as basis. As we page_create we increment
* the ptr so we spread out the physical pages to cover the entire ecache.
* The virtual color is made a subset of the physical color in order to
* in minimize virtual cache flushing.
* We add in the as to spread out different as. This happens when we
* initialize the start count value.
* sizeof(struct as) is 60 so we shift by 3 to get into the bit range
* that will tend to change. For example, on spitfire based machines
* (vcshft == 1) contigous as are spread bu ~6 bins.
* vcshft provides for proper virtual color alignment.
* In theory cnt should be updated using cas only but if we are off by one
* or 2 it is no big deal.
* We also keep a start value which is used to randomize on what bin we
* start counting when it is time to start another loop. This avoids
* contigous allocations of ecache size to point to the same bin.
* Why 3? Seems work ok. Better than 7 or anything larger.
*/
#define PGCLR_LOOPFACTOR 3
/*
* When a bin is empty, and we can't satisfy a color request correctly,
* we scan. If we assume that the programs have reasonable spatial
* behavior, then it will not be a good idea to use the adjacent color.
* Using the adjacent color would result in virtually adjacent addresses
* mapping into the same spot in the cache. So, if we stumble across
* an empty bin, skip a bunch before looking. After the first skip,
* then just look one bin at a time so we don't miss our cache on
* every look. Be sure to check every bin. Page_create() will panic
* if we miss a page.
*
* This also explains the `<=' in the for loops in both page_get_freelist()
* and page_get_cachelist(). Since we checked the target bin, skipped
* a bunch, then continued one a time, we wind up checking the target bin
* twice to make sure we get all of them bins.
*/
#define BIN_STEP 20
#ifdef VM_STATS
struct vmm_vmstats_str {
ulong_t pgf_alloc[MMU_PAGE_SIZES]; /* page_get_freelist */
ulong_t pgf_allocok[MMU_PAGE_SIZES];
ulong_t pgf_allocokrem[MMU_PAGE_SIZES];
ulong_t pgf_allocfailed[MMU_PAGE_SIZES];
ulong_t pgf_allocdeferred;
ulong_t pgf_allocretry[MMU_PAGE_SIZES];
ulong_t pgc_alloc; /* page_get_cachelist */
ulong_t pgc_allocok;
ulong_t pgc_allocokrem;
ulong_t pgc_allocokdeferred;
ulong_t pgc_allocfailed;
ulong_t pgcp_alloc[MMU_PAGE_SIZES]; /* page_get_contig_pages */
ulong_t pgcp_allocfailed[MMU_PAGE_SIZES];
ulong_t pgcp_allocempty[MMU_PAGE_SIZES];
ulong_t pgcp_allocok[MMU_PAGE_SIZES];
ulong_t ptcp[MMU_PAGE_SIZES]; /* page_trylock_contig_pages */
ulong_t ptcpfreethresh[MMU_PAGE_SIZES];
ulong_t ptcpfailexcl[MMU_PAGE_SIZES];
ulong_t ptcpfailszc[MMU_PAGE_SIZES];
ulong_t ptcpfailcage[MMU_PAGE_SIZES];
ulong_t ptcpok[MMU_PAGE_SIZES];
ulong_t pgmf_alloc[MMU_PAGE_SIZES]; /* page_get_mnode_freelist */
ulong_t pgmf_allocfailed[MMU_PAGE_SIZES];
ulong_t pgmf_allocempty[MMU_PAGE_SIZES];
ulong_t pgmf_allocok[MMU_PAGE_SIZES];
ulong_t pgmc_alloc; /* page_get_mnode_cachelist */
ulong_t pgmc_allocfailed;
ulong_t pgmc_allocempty;
ulong_t pgmc_allocok;
ulong_t pladd_free[MMU_PAGE_SIZES]; /* page_list_add/sub */
ulong_t plsub_free[MMU_PAGE_SIZES];
ulong_t pladd_cache;
ulong_t plsub_cache;
ulong_t plsubpages_szcbig;
ulong_t plsubpages_szc0;
ulong_t pfs_req[MMU_PAGE_SIZES]; /* page_freelist_split */
ulong_t pfs_demote[MMU_PAGE_SIZES];
ulong_t pfc_coalok[MMU_PAGE_SIZES][MAX_MNODE_MRANGES];
ulong_t ppr_reloc[MMU_PAGE_SIZES]; /* page_relocate */
ulong_t ppr_relocok[MMU_PAGE_SIZES];
ulong_t ppr_relocnoroot[MMU_PAGE_SIZES];
ulong_t ppr_reloc_replnoroot[MMU_PAGE_SIZES];
ulong_t ppr_relocnolock[MMU_PAGE_SIZES];
ulong_t ppr_relocnomem[MMU_PAGE_SIZES];
ulong_t ppr_krelocfail[MMU_PAGE_SIZES];
ulong_t ppr_copyfail;
/* page coalesce counter */
ulong_t page_ctrs_coalesce[MMU_PAGE_SIZES][MAX_MNODE_MRANGES];
/* candidates useful */
ulong_t page_ctrs_cands_skip[MMU_PAGE_SIZES][MAX_MNODE_MRANGES];
/* ctrs changed after locking */
ulong_t page_ctrs_changed[MMU_PAGE_SIZES][MAX_MNODE_MRANGES];
/* page_freelist_coalesce failed */
ulong_t page_ctrs_failed[MMU_PAGE_SIZES][MAX_MNODE_MRANGES];
ulong_t page_ctrs_coalesce_all; /* page coalesce all counter */
ulong_t page_ctrs_cands_skip_all; /* candidates useful for all func */
};
extern struct vmm_vmstats_str vmm_vmstats;
#endif /* VM_STATS */
/*
* Used to hold off page relocations into the cage until OBP has completed
* its boot-time handoff of its resources to the kernel.
*/
extern int page_relocate_ready;
/*
* cpu/mmu-dependent vm variables may be reset at bootup.
*/
extern uint_t mmu_page_sizes;
extern uint_t max_mmu_page_sizes;
extern uint_t mmu_hashcnt;
extern uint_t max_mmu_hashcnt;
extern size_t mmu_ism_pagesize;
extern int mmu_exported_pagesize_mask;
extern uint_t mmu_exported_page_sizes;
extern uint_t szc_2_userszc[];
extern uint_t userszc_2_szc[];
#define mmu_legacy_page_sizes mmu_exported_page_sizes
#define USERSZC_2_SZC(userszc) (userszc_2_szc[userszc])
#define SZC_2_USERSZC(szc) (szc_2_userszc[szc])
/*
* Platform specific page routines
*/
extern void mach_page_add(page_t **, page_t *);
extern void mach_page_sub(page_t **, page_t *);
extern uint_t page_get_pagecolors(uint_t);
extern void ppcopy_kernel__relocatable(page_t *, page_t *);
#define ppcopy_kernel(p1, p2) ppcopy_kernel__relocatable(p1, p2)
/*
* platform specific large pages for kernel heap support
*/
extern size_t get_segkmem_lpsize(size_t lpsize);
extern size_t mmu_get_kernel_lpsize(size_t lpsize);
extern void mmu_init_kernel_pgsz(struct hat *hat);
extern void mmu_init_kcontext();
extern uint64_t kcontextreg;
/*
* Nucleus data page allocator routines
*/
extern void ndata_alloc_init(struct memlist *, uintptr_t, uintptr_t);
extern void *ndata_alloc(struct memlist *, size_t, size_t);
extern void *ndata_extra_base(struct memlist *, size_t, caddr_t);
extern size_t ndata_maxsize(struct memlist *);
extern size_t ndata_spare(struct memlist *, size_t, size_t);
#ifdef __cplusplus
}
#endif
#endif /* _VM_DEP_H */