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Add definitions for dcache color bits, which may move to cache.h.

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Add fields to md_page for tracking virtual page color, and pv entry
lists.
Fix pmap_track_modified to work for non-kernel pmaps.  This is due to
kernel virtual addresses potentially overlapping with userland addresses.
This commit is contained in:
Jake Burkholder 2001-12-29 08:19:24 +00:00
parent e3d6851148
commit a4e1e6e5de
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=88651
1 changed files with 36 additions and 6 deletions
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42
sys/sparc64/include/pmap.h
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@ -45,44 +45,74 @@
#include <machine/tte.h>
#define DCACHE_COLOR_BITS (1)
#define DCACHE_COLORS (1 << DCACHE_COLOR_BITS)
#define DCACHE_COLOR_MASK (DCACHE_COLORS - 1)
#define DCACHE_COLOR(va) (((va) >> PAGE_SHIFT) & DCACHE_COLOR_MASK)
#define PMAP_CONTEXT_MAX 8192
#define pmap_resident_count(pm) (pm->pm_stats.resident_count)
struct pv_entry;
typedef struct pmap *pmap_t;
typedef struct pv_entry *pv_entry_t;
struct md_page {
TAILQ_HEAD(, pv_entry) pv_list;
int pv_list_count;
int colors[DCACHE_COLORS];
};
struct pmap {
struct stte pm_stte;
vm_object_t pm_object;
TAILQ_HEAD(,pv_entry) pm_pvlist;
struct tte *pm_tsb;
struct tte *pm_tsb_tte;
vm_object_t pm_tsb_obj;
u_int pm_active;
u_int pm_context;
u_int pm_count;
u_int pm_pages;
struct pmap_statistics pm_stats;
};
struct pv_entry {
TAILQ_ENTRY(pv_entry) pv_list;
TAILQ_ENTRY(pv_entry) pv_plist;
pmap_t pv_pmap;
vm_offset_t pv_va;
vm_page_t pv_m;
};
void pmap_bootstrap(vm_offset_t ekva);
vm_offset_t pmap_kextract(vm_offset_t va);
void pmap_kenter_flags(vm_offset_t va, vm_offset_t pa, u_long flags);
int pmap_cache_enter(vm_page_t m, vm_offset_t va);
void pmap_cache_remove(vm_page_t m, vm_offset_t va);
#define vtophys(va) pmap_kextract(((vm_offset_t) (va)))
extern vm_offset_t avail_start;
extern vm_offset_t avail_end;
extern struct pmap *kernel_pmap;
extern struct pmap kernel_pmap_store;
#define kernel_pmap (&kernel_pmap_store)
extern vm_offset_t phys_avail[];
extern vm_offset_t virtual_avail;
extern vm_offset_t virtual_end;
extern vm_offset_t kernel_page;
extern int pmap_pagedaemon_waken;
extern vm_offset_t msgbuf_phys;
static __inline int
pmap_track_modified(vm_offset_t va)
pmap_track_modified(pmap_t pm, vm_offset_t va)
{
return ((va < kmi.clean_sva) || (va >= kmi.clean_eva));
if (pm == kernel_pmap)
return ((va < kmi.clean_sva) || (va >= kmi.clean_eva));
else
return (1);
}
#endif /* !_MACHINE_PMAP_H_ */