diff options
Diffstat (limited to 'sys/powerpc/include/pmap.h')
| -rw-r--r-- | sys/powerpc/include/pmap.h | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/sys/powerpc/include/pmap.h b/sys/powerpc/include/pmap.h index e0b3dc0..3b0949c 100644 --- a/sys/powerpc/include/pmap.h +++ b/sys/powerpc/include/pmap.h @@ -65,10 +65,12 @@ #define _MACHINE_PMAP_H_ #include <sys/queue.h> +#include <sys/tree.h> #include <sys/_lock.h> #include <sys/_mutex.h> #include <machine/sr.h> #include <machine/pte.h> +#include <machine/slb.h> #include <machine/tlb.h> struct pmap_md { @@ -84,13 +86,22 @@ struct pmap_md { #define NPMAPS 32768 #endif /* !defined(NPMAPS) */ +struct slbcontainer; + +SPLAY_HEAD(slb_tree, slbcontainer); + struct pmap { struct mtx pm_mtx; - u_int pm_sr[16]; + + #ifdef __powerpc64__ + struct slb_tree pm_slbtree; + struct slb *pm_slb; + #else + register_t pm_sr[16]; + #endif u_int pm_active; uint32_t pm_gen_count; /* generation count (pmap lock dropped) */ u_int pm_retries; - u_int pm_context; struct pmap *pmap_phys; struct pmap_statistics pm_stats; @@ -107,6 +118,7 @@ struct pvo_entry { } 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); @@ -119,20 +131,39 @@ struct md_page { #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 */ u_int pm_active; /* active on cpus */ - uint32_t pm_gen_count; /* generation count (pmap lock dropped) */ - u_int pm_retries; 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; }; |
