uvm/pmap/pmap_segtab.c

281 	pmap_pdetab_t *ptb = pmap->pm_pdetab;
283 //	UVMHIST_LOG(pmaphist, "pm_pdetab %#jx", ptb, 0, 0, 0);
294 		ptb = pmap_pde_to_pdetab(ptb->pde_pde[(va >> segshift) & pdetab_mask]);
295 		if (ptb == NULL)
299 	return pmap_pde_to_ptpage(ptb->pde_pde[(va >> SEGSHIFT) & pdetab_mask]);
562 	pmap_pdetab_t *ptb;
571 	if (__predict_true((ptb = pmap_segtab_info.pdealloc.free_pdetab) != NULL)) {
572 		pmap_segtab_info.pdealloc.free_pdetab = ptb->pde_next;
574 		UVMHIST_LOG(pmapxtabhist, "freelist ptb=%#jx",
575 		    (uintptr_t)ptb, 0, 0, 0);
578 		ptb->pde_next = NULL;
586 	if (__predict_false(ptb == NULL)) {
604 		ptb = (pmap_pdetab_t *)PMAP_MAP_PDETABPAGE(ptb_pa);
605 		UVMHIST_LOG(pmapxtabhist, "new ptb=%#jx", (uintptr_t)ptb, 0,
610 				ptb->pde_pde[i] = pte_invalid_pde();
616 	pmap_page_attach(pmap, (vaddr_t)ptb, ptb_pg, &pmap->pm_pdetab_list, 0);
618 	UVMHIST_LOG(pmapxtabhist, "... ptb %#jx found on freelist %d",
619 	    (uintptr_t)ptb, found_on_freelist, 0, 0);
621 	return ptb;
713 pmap_pdetab_free(pmap_pdetab_t *ptb)
716 	UVMHIST_CALLARGS(pmaphist, "ptb %#jx", (uintptr_t)ptb, 0, 0, 0);
721 	ptb->pde_next = pmap_segtab_info.pdealloc.free_pdetab;
722 	pmap_segtab_info.pdealloc.free_pdetab = ptb;
757 	pmap_pdetab_t *ptb = *ptb_p;
760 	UVMHIST_CALLARGS(pmapxtabhist, "pm %#jx ptb_p %#jx ptb %#jx free %jd",
761 	    (uintptr_t)pmap, (uintptr_t)ptb_p, (uintptr_t)ptb, free_ptb);
770 			if (pte_pde_valid_p(ptb->pde_pde[i])) {
772 				    pmap_pde_to_pdetab(ptb->pde_pde[i]);
775 				    "recursing", va, i, &ptb->pde_pde[i],
776 				    ptb->pde_pde[i]);
779 				ptb->pde_pde[i] = pte_invalid_pde();
788 		pmap_ptpage_t *ppg = pmap_pde_to_ptpage(ptb->pde_pde[i]);
790 		    "   va %#jx ptb->pde_pde[%jd] (*%#jx) = %#jx", va, i,
791 		    (uintptr_t)&ptb->pde_pde[i], ptb->pde_pde[i]);
796 		    (uintptr_t)ptb->pde_pde, i, (uintptr_t)&ptb->pde_pde[i], 0);
798 		ptb->pde_pde[i] = pte_invalid_pde();
804 		UVMHIST_LOG(pmapxtabhist, " ptbp %#jx ptb %#jx",
805 		    (uintptr_t)ptb_p, (uintptr_t)ptb, 0, 0);
806 		const vaddr_t kva = (vaddr_t)ptb;
809 		pmap_pdetab_free(ptb);
1034 	pmap_pdetab_t *ptb = pmap->pm_pdetab;
1035 	UVMHIST_LOG(pmaphist, "pm_pdetab %#jx", (uintptr_t)ptb, 0, 0, 0);
1044 		    &ptb->pde_pde[(va >> segshift) & segtab_mask];
1048 		    "ptb %#jx segshift %jd pde_p %#jx opde %#jx",
1049 		    ptb, segshift, pde_p, opde);
1052 			ptb = pmap_pdetab_alloc(pmap);
1054 			    pmap_md_direct_mapped_vaddr_to_paddr((vaddr_t)ptb),
1058 				const vaddr_t kva = (vaddr_t)ptb;
1063 				pmap_pdetab_free(ptb);
1068 		ptb = pmap_pde_to_pdetab(opde);
1069 		UVMHIST_LOG(pmaphist, "opde %#jx ptb %#jx", opde, ptb, 0, 0);
1074 	pd_entry_t opde = ptb->pde_pde[(va >> segshift) & segtab_mask];
1076 	ptb = pmap_pde_to_pdetab(opde);
1081 	UVMHIST_LOG(pmaphist, "... returning %#jx (idx %jd)", (uintptr_t)&ptb->pde_pde[idx], idx, 0, 0);
1083 	return &ptb->pde_pde[idx];
1094 		pmap_pdetab_t ** const ptb_p = &ptb->pde_pde[idx];
1115 	pmap_segtab_t opde = ptb->pde_pde[(va >> segshift) & segtab_mask];
1117 	ptb = pmap_pde_to_pdetab(opde);
1126 	*pde_p = &ptb->pde_pde[idx];