On 08/07/13 02:21, Jeff Roberson wrote:
Author: jeff
Date: Wed Aug  7 06:21:20 2013
New Revision: 254025
URL: http://svnweb.freebsd.org/changeset/base/254025

Log:
   Replace kernel virtual address space allocation with vmem.  This provides
   transparent layering and better fragmentation.

    - Normalize functions that allocate memory to use kmem_*
    - Those that allocate address space are named kva_*
    - Those that operate on maps are named kmap_*
    - Implement recursive allocation handling for kmem_arena in vmem.

   Reviewed by: alc
   Tested by:   pho
   Sponsored by:        EMC / Isilon Storage Division

Modified:
   head/sys/amd64/amd64/mp_machdep.c
   head/sys/amd64/amd64/pmap.c
   head/sys/amd64/amd64/sys_machdep.c
   head/sys/amd64/amd64/vm_machdep.c
   head/sys/arm/arm/bus_space_generic.c
   head/sys/arm/arm/busdma_machdep-v6.c
   head/sys/arm/arm/busdma_machdep.c
   head/sys/arm/arm/mp_machdep.c
   head/sys/arm/arm/pmap-v6.c
   head/sys/arm/arm/pmap.c
   head/sys/arm/arm/vm_machdep.c
   head/sys/arm/at91/at91.c
   head/sys/arm/mv/armadaxp/armadaxp_mp.c
   head/sys/arm/s3c2xx0/s3c2xx0_space.c
   head/sys/arm/xscale/i80321/i80321_space.c
   head/sys/arm/xscale/i8134x/i81342_space.c
   head/sys/arm/xscale/ixp425/ixp425_pci_space.c
   head/sys/cddl/compat/opensolaris/kern/opensolaris_kmem.c
   head/sys/cddl/compat/opensolaris/sys/kmem.h
   head/sys/compat/linux/linux_misc.c
   head/sys/compat/ndis/subr_ntoskrnl.c
   head/sys/dev/bktr/bktr_core.c
   head/sys/dev/drm/drm_scatter.c
   head/sys/dev/drm2/drm_scatter.c
   head/sys/dev/drm2/i915/intel_ringbuffer.c
   head/sys/dev/drm2/ttm/ttm_bo_util.c
   head/sys/dev/xen/blkback/blkback.c
   head/sys/dev/xen/netback/netback.c
   head/sys/dev/xen/xenpci/xenpci.c
   head/sys/i386/i386/machdep.c
   head/sys/i386/i386/mp_machdep.c
   head/sys/i386/i386/pmap.c
   head/sys/i386/i386/sys_machdep.c
   head/sys/i386/i386/vm_machdep.c
   head/sys/i386/ibcs2/imgact_coff.c
   head/sys/i386/pci/pci_cfgreg.c
   head/sys/i386/xen/mp_machdep.c
   head/sys/i386/xen/pmap.c
   head/sys/ia64/ia64/mp_machdep.c
   head/sys/kern/imgact_gzip.c
   head/sys/kern/init_main.c
   head/sys/kern/kern_exec.c
   head/sys/kern/kern_malloc.c
   head/sys/kern/kern_mbuf.c
   head/sys/kern/kern_sharedpage.c
   head/sys/kern/subr_busdma_bufalloc.c
   head/sys/kern/subr_vmem.c
   head/sys/kern/vfs_bio.c
   head/sys/mips/mips/mp_machdep.c
   head/sys/mips/mips/pmap.c
   head/sys/mips/mips/vm_machdep.c
   head/sys/mips/sibyte/sb_zbpci.c
   head/sys/ofed/include/linux/dma-mapping.h
   head/sys/ofed/include/linux/gfp.h
   head/sys/ofed/include/linux/linux_compat.c
   head/sys/pc98/pc98/machdep.c
   head/sys/powerpc/aim/mmu_oea.c
   head/sys/powerpc/aim/mmu_oea64.c
   head/sys/powerpc/aim/vm_machdep.c
   head/sys/powerpc/booke/pmap.c
   head/sys/powerpc/booke/vm_machdep.c
   head/sys/powerpc/powerpc/busdma_machdep.c
   head/sys/powerpc/powerpc/mp_machdep.c
   head/sys/sparc64/sparc64/bus_machdep.c
   head/sys/sparc64/sparc64/mem.c
   head/sys/sparc64/sparc64/mp_machdep.c
   head/sys/sparc64/sparc64/pmap.c
   head/sys/sparc64/sparc64/vm_machdep.c
   head/sys/vm/memguard.c
   head/sys/vm/memguard.h
   head/sys/vm/pmap.h
   head/sys/vm/uma_core.c
   head/sys/vm/vm_extern.h
   head/sys/vm/vm_glue.c
   head/sys/vm/vm_init.c
   head/sys/vm/vm_kern.c
   head/sys/vm/vm_kern.h
   head/sys/vm/vm_map.c
   head/sys/vm/vm_map.h
   head/sys/vm/vm_object.c
   head/sys/x86/x86/busdma_machdep.c
   head/sys/xen/gnttab.c

Modified: head/sys/amd64/amd64/mp_machdep.c
==============================================================================
--- head/sys/amd64/amd64/mp_machdep.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/amd64/amd64/mp_machdep.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -938,10 +938,14 @@ start_all_aps(void)
                apic_id = cpu_apic_ids[cpu];

                /* allocate and set up an idle stack data page */
-               bootstacks[cpu] = (void *)kmem_alloc(kernel_map, KSTACK_PAGES * 
PAGE_SIZE);
-               doublefault_stack = (char *)kmem_alloc(kernel_map, PAGE_SIZE);
-               nmi_stack = (char *)kmem_alloc(kernel_map, PAGE_SIZE);
-               dpcpu = (void *)kmem_alloc(kernel_map, DPCPU_SIZE);
+               bootstacks[cpu] = (void *)kmem_malloc(kernel_arena,
+                   KSTACK_PAGES * PAGE_SIZE, M_WAITOK | M_ZERO);
+               doublefault_stack = (char *)kmem_malloc(kernel_arena,
+                   PAGE_SIZE, M_WAITOK | M_ZERO);
+               nmi_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE,
+                   M_WAITOK | M_ZERO);
+               dpcpu = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
+                   M_WAITOK | M_ZERO);

                bootSTK = (char *)bootstacks[cpu] + KSTACK_PAGES * PAGE_SIZE - 
8;
                bootAP = cpu;

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/amd64/amd64/pmap.c Wed Aug  7 06:21:20 2013        (r254025)
@@ -860,7 +860,8 @@ pmap_init(void)
         */
        s = (vm_size_t)(pv_npg * sizeof(struct md_page));
        s = round_page(s);
-       pv_table = (struct md_page *)kmem_alloc(kernel_map, s);
+       pv_table = (struct md_page *)kmem_malloc(kernel_arena, s,
+           M_WAITOK | M_ZERO);
        for (i = 0; i < pv_npg; i++)
                TAILQ_INIT(&pv_table[i].pv_list);
  }
@@ -5060,7 +5061,7 @@ pmap_mapdev_attr(vm_paddr_t pa, vm_size_
        }
        offset = pa & PAGE_MASK;
        size = round_page(offset + size);
-       va = kmem_alloc_nofault(kernel_map, size);
+       va = kva_alloc(size);
        if (!va)
                panic("pmap_mapdev: Couldn't alloc kernel virtual memory");
        pa = trunc_page(pa);
@@ -5096,7 +5097,7 @@ pmap_unmapdev(vm_offset_t va, vm_size_t
        base = trunc_page(va);
        offset = va & PAGE_MASK;
        size = round_page(offset + size);
-       kmem_free(kernel_map, base, size);
+       kva_free(base, size);
  }

  /*

Modified: head/sys/amd64/amd64/sys_machdep.c
==============================================================================
--- head/sys/amd64/amd64/sys_machdep.c  Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/amd64/amd64/sys_machdep.c  Wed Aug  7 06:21:20 2013        
(r254025)
@@ -356,7 +356,7 @@ amd64_set_ioperm(td, uap)
         */
        pcb = td->td_pcb;
        if (pcb->pcb_tssp == NULL) {
-               tssp = (struct amd64tss *)kmem_malloc(kernel_map,
+               tssp = (struct amd64tss *)kmem_malloc(kernel_arena,
                    ctob(IOPAGES+1), M_WAITOK);
                if (tssp == NULL)
                        return (ENOMEM);
@@ -463,7 +463,7 @@ user_ldt_alloc(struct proc *p, int force
                return (mdp->md_ldt);
        mtx_unlock(&dt_lock);
        new_ldt = malloc(sizeof(struct proc_ldt), M_SUBPROC, M_WAITOK);
-       new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_map,
+       new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena,
             max_ldt_segment * sizeof(struct user_segment_descriptor),
             M_WAITOK);
        if (new_ldt->ldt_base == NULL) {
@@ -484,7 +484,7 @@ user_ldt_alloc(struct proc *p, int force
        mtx_lock(&dt_lock);
        pldt = mdp->md_ldt;
        if (pldt != NULL && !force) {
-               kmem_free(kernel_map, (vm_offset_t)new_ldt->ldt_base,
+               kmem_free(kernel_arena, (vm_offset_t)new_ldt->ldt_base,
                    max_ldt_segment * sizeof(struct user_segment_descriptor));
                free(new_ldt, M_SUBPROC);
                return (pldt);
@@ -529,7 +529,7 @@ user_ldt_derefl(struct proc_ldt *pldt)
  {

        if (--pldt->ldt_refcnt == 0) {
-               kmem_free(kernel_map, (vm_offset_t)pldt->ldt_base,
+               kmem_free(kernel_arena, (vm_offset_t)pldt->ldt_base,
                    max_ldt_segment * sizeof(struct user_segment_descriptor));
                free(pldt, M_SUBPROC);
        }

Modified: head/sys/amd64/amd64/vm_machdep.c
==============================================================================
--- head/sys/amd64/amd64/vm_machdep.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/amd64/amd64/vm_machdep.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -342,7 +342,7 @@ cpu_thread_clean(struct thread *td)
         * Clean TSS/iomap
         */
        if (pcb->pcb_tssp != NULL) {
-               kmem_free(kernel_map, (vm_offset_t)pcb->pcb_tssp,
+               kva_free((vm_offset_t)pcb->pcb_tssp,
                    ctob(IOPAGES + 1));
                pcb->pcb_tssp = NULL;
        }

Modified: head/sys/arm/arm/bus_space_generic.c
==============================================================================
--- head/sys/arm/arm/bus_space_generic.c        Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/arm/bus_space_generic.c        Wed Aug  7 06:21:20 2013        
(r254025)
@@ -73,7 +73,7 @@ generic_bs_map(void *t, bus_addr_t bpa,
        offset = bpa & PAGE_MASK;
        startpa = trunc_page(bpa);

-       va = kmem_alloc_nofault(kernel_map, endpa - startpa);
+       va = kva_alloc(endpa - startpa);
        if (va == 0)
                return (ENOMEM);

@@ -118,7 +118,7 @@ generic_bs_unmap(void *t, bus_space_hand
                pmap_kremove(va);
                va += PAGE_SIZE;
        }
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  }

  void

Modified: head/sys/arm/arm/busdma_machdep-v6.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep-v6.c        Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/arm/busdma_machdep-v6.c        Wed Aug  7 06:21:20 2013        
(r254025)
@@ -696,10 +696,10 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, voi
                *vaddr = uma_zalloc(bufzone->umazone, mflags);
        } else if (dmat->nsegments >= btoc(dmat->maxsize) &&
            dmat->alignment <= PAGE_SIZE && dmat->boundary == 0) {
-               *vaddr = (void *)kmem_alloc_attr(kernel_map, dmat->maxsize,
+               *vaddr = (void *)kmem_alloc_attr(kernel_arena, dmat->maxsize,
                    mflags, 0, dmat->lowaddr, memattr);
        } else {
-               *vaddr = (void *)kmem_alloc_contig(kernel_map, dmat->maxsize,
+               *vaddr = (void *)kmem_alloc_contig(kernel_arena, dmat->maxsize,
                    mflags, 0, dmat->lowaddr, dmat->alignment, dmat->boundary,
                    memattr);
        }
@@ -744,7 +744,7 @@ bus_dmamem_free(bus_dma_tag_t dmat, void
            !_bus_dma_can_bounce(dmat->lowaddr, dmat->highaddr))
                uma_zfree(bufzone->umazone, vaddr);
        else
-               kmem_free(kernel_map, (vm_offset_t)vaddr, dmat->maxsize);
+               kmem_free(kernel_arena, (vm_offset_t)vaddr, dmat->maxsize);

        dmat->map_count--;
        free(map, M_DEVBUF);

Modified: head/sys/arm/arm/busdma_machdep.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/arm/busdma_machdep.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -752,10 +752,10 @@ bus_dmamem_alloc(bus_dma_tag_t dmat, voi
                vaddr = uma_zalloc(bufzone->umazone, mflags);
        } else if (dmat->nsegments >= btoc(dmat->maxsize) &&
            dmat->alignment <= PAGE_SIZE && dmat->boundary == 0) {
-               vaddr = (void *)kmem_alloc_attr(kernel_map, dmat->maxsize,
+               vaddr = (void *)kmem_alloc_attr(kernel_arena, dmat->maxsize,
                    mflags, 0, dmat->lowaddr, memattr);
        } else {
-               vaddr = (void *)kmem_alloc_contig(kernel_map, dmat->maxsize,
+               vaddr = (void *)kmem_alloc_contig(kernel_arena, dmat->maxsize,
                    mflags, 0, dmat->lowaddr, dmat->alignment, dmat->boundary,
                    memattr);
        }
@@ -798,7 +798,7 @@ bus_dmamem_free(bus_dma_tag_t dmat, void
            !_bus_dma_can_bounce(dmat->lowaddr, dmat->highaddr))
                uma_zfree(bufzone->umazone, vaddr);
        else
-               kmem_free(kernel_map, (vm_offset_t)vaddr, dmat->maxsize);
+               kmem_free(kernel_arena, (vm_offset_t)vaddr, dmat->maxsize);
  }

  static void

Modified: head/sys/arm/arm/mp_machdep.c
==============================================================================
--- head/sys/arm/arm/mp_machdep.c       Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/arm/mp_machdep.c       Wed Aug  7 06:21:20 2013        
(r254025)
@@ -112,7 +112,8 @@ cpu_mp_start(void)

        /* Reserve memory for application processors */
        for(i = 0; i < (mp_ncpus - 1); i++)
-               dpcpu[i] = (void *)kmem_alloc(kernel_map, DPCPU_SIZE);
+               dpcpu[i] = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
+                   M_WAITOK | M_ZERO);
        temp_pagetable_va = (vm_offset_t)contigmalloc(L1_TABLE_SIZE,
            M_TEMP, 0, 0x0, 0xffffffff, L1_TABLE_SIZE, 0);
        addr = KERNPHYSADDR;

Modified: head/sys/arm/arm/pmap-v6.c
==============================================================================
--- head/sys/arm/arm/pmap-v6.c  Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/arm/arm/pmap-v6.c  Wed Aug  7 06:21:20 2013        (r254025)
@@ -1255,8 +1255,7 @@ pmap_init(void)
        pv_entry_high_water = 9 * (pv_entry_max / 10);

        pv_maxchunks = MAX(pv_entry_max / _NPCPV, maxproc);
-       pv_chunkbase = (struct pv_chunk *)kmem_alloc_nofault(kernel_map,
-           PAGE_SIZE * pv_maxchunks);
+       pv_chunkbase = (struct pv_chunk *)kva_alloc(PAGE_SIZE * pv_maxchunks);

        if (pv_chunkbase == NULL)
                panic("pmap_init: not enough kvm for pv chunks");
@@ -4103,7 +4102,7 @@ pmap_mapdev(vm_offset_t pa, vm_size_t si

        GIANT_REQUIRED;

-       va = kmem_alloc_nofault(kernel_map, size);
+       va = kva_alloc(size);
        if (!va)
                panic("pmap_mapdev: Couldn't alloc kernel virtual memory");
        for (tmpva = va; size > 0;) {

Modified: head/sys/arm/arm/pmap.c
==============================================================================
--- head/sys/arm/arm/pmap.c     Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/arm/arm/pmap.c     Wed Aug  7 06:21:20 2013        (r254025)
@@ -4718,7 +4718,7 @@ pmap_mapdev(vm_offset_t pa, vm_size_t si
        
        GIANT_REQUIRED;
        
-       va = kmem_alloc_nofault(kernel_map, size);
+       va = kva_alloc(size);
        if (!va)
                panic("pmap_mapdev: Couldn't alloc kernel virtual memory");
        for (tmpva = va; size > 0;) {

Modified: head/sys/arm/arm/vm_machdep.c
==============================================================================
--- head/sys/arm/arm/vm_machdep.c       Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/arm/vm_machdep.c       Wed Aug  7 06:21:20 2013        
(r254025)
@@ -210,7 +210,7 @@ sf_buf_init(void *arg)
                
        sf_buf_active = hashinit(nsfbufs, M_TEMP, &sf_buf_hashmask);
        TAILQ_INIT(&sf_buf_freelist);
-       sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
+       sf_base = kva_alloc(nsfbufs * PAGE_SIZE);
        sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
            M_NOWAIT | M_ZERO);
        for (i = 0; i < nsfbufs; i++) {
@@ -667,7 +667,8 @@ uma_small_alloc(uma_zone_t zone, int byt
                if (zone == l2zone &&
                    pte_l1_s_cache_mode != pte_l1_s_cache_mode_pt) {
                        *flags = UMA_SLAB_KMEM;
-                       ret = ((void *)kmem_malloc(kmem_map, bytes, M_NOWAIT));
+                       ret = ((void *)kmem_malloc(kmem_arena, bytes,
+                           M_NOWAIT));
                        return (ret);
                }
                pflags = malloc2vm_flags(wait) | VM_ALLOC_WIRED;
@@ -701,7 +702,7 @@ uma_small_free(void *mem, int size, u_in
        pt_entry_t *pt;

        if (flags & UMA_SLAB_KMEM)
-               kmem_free(kmem_map, (vm_offset_t)mem, size);
+               kmem_free(kmem_arena, (vm_offset_t)mem, size);
        else {
                struct arm_small_page *sp;


Modified: head/sys/arm/at91/at91.c
==============================================================================
--- head/sys/arm/at91/at91.c    Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/arm/at91/at91.c    Wed Aug  7 06:21:20 2013        (r254025)
@@ -85,7 +85,7 @@ at91_bs_unmap(void *t, bus_space_handle_
        endva = va + round_page(size);

        /* Free the kernel virtual mapping. */
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  }

  static int

Modified: head/sys/arm/mv/armadaxp/armadaxp_mp.c
==============================================================================
--- head/sys/arm/mv/armadaxp/armadaxp_mp.c      Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/mv/armadaxp/armadaxp_mp.c      Wed Aug  7 06:21:20 2013        
(r254025)
@@ -113,7 +113,7 @@ platform_mp_start_ap(void)
        cputype = cpufunc_id();
        cputype &= CPU_ID_CPU_MASK;

-       smp_boot = kmem_alloc_nofault(kernel_map, PAGE_SIZE);
+       smp_boot = kva_alloc(PAGE_SIZE);
        pmap_kenter_nocache(smp_boot, 0xffff0000);
        dst = (uint32_t *) smp_boot;

@@ -121,7 +121,7 @@ platform_mp_start_ap(void)
            src++, dst++) {
                *dst = *src;
        }
-       kmem_free(kernel_map, smp_boot, PAGE_SIZE);
+       kva_free(smp_boot, PAGE_SIZE);

        if (cputype == CPU_ID_MV88SV584X_V7) {
                /* Core rev A0 */

Modified: head/sys/arm/s3c2xx0/s3c2xx0_space.c
==============================================================================
--- head/sys/arm/s3c2xx0/s3c2xx0_space.c        Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/s3c2xx0/s3c2xx0_space.c        Wed Aug  7 06:21:20 2013        
(r254025)
@@ -182,7 +182,7 @@ s3c2xx0_bs_map(void *t, bus_addr_t bpa,
        startpa = trunc_page(bpa);
        endpa = round_page(bpa + size);

-       va = kmem_alloc_nofault(kernel_map, endpa - startpa);
+       va = kva_alloc(endpa - startpa);
        if (!va)
                return (ENOMEM);

@@ -214,7 +214,7 @@ s3c2xx0_bs_unmap(void *t, bus_space_hand
                pmap_kremove(va);
                va += PAGE_SIZE;
        }
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  }

  int

Modified: head/sys/arm/xscale/i80321/i80321_space.c
==============================================================================
--- head/sys/arm/xscale/i80321/i80321_space.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/xscale/i80321/i80321_space.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -312,7 +312,7 @@ i80321_mem_bs_unmap(void *t, bus_space_h
        endva = va + round_page(size);

        /* Free the kernel virtual mapping. */
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  }

  int

Modified: head/sys/arm/xscale/i8134x/i81342_space.c
==============================================================================
--- head/sys/arm/xscale/i8134x/i81342_space.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/arm/xscale/i8134x/i81342_space.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -324,7 +324,7 @@ i81342_mem_bs_unmap(void *t, bus_space_h
        endva = va + round_page(size);

        /* Free the kernel virtual mapping. */
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  #endif
  }


Modified: head/sys/arm/xscale/ixp425/ixp425_pci_space.c
==============================================================================
--- head/sys/arm/xscale/ixp425/ixp425_pci_space.c       Wed Aug  7 06:05:57 
2013        (r254024)
+++ head/sys/arm/xscale/ixp425/ixp425_pci_space.c       Wed Aug  7 06:21:20 
2013        (r254025)
@@ -432,7 +432,7 @@ ixp425_pci_mem_bs_unmap(void *t, bus_spa
        endva = va + round_page(size);

        /* Free the kernel virtual mapping. */
-       kmem_free(kernel_map, va, endva - va);
+       kva_free(va, endva - va);
  }

  int

Modified: head/sys/cddl/compat/opensolaris/kern/opensolaris_kmem.c
==============================================================================
--- head/sys/cddl/compat/opensolaris/kern/opensolaris_kmem.c    Wed Aug  7 
06:05:57 2013        (r254024)
+++ head/sys/cddl/compat/opensolaris/kern/opensolaris_kmem.c    Wed Aug  7 
06:21:20 2013        (r254025)
@@ -62,6 +62,8 @@ static struct mtx kmem_items_mtx;
  MTX_SYSINIT(kmem_items_mtx, &kmem_items_mtx, "kmem_items", MTX_DEF);
  #endif        /* KMEM_DEBUG */

+#include <sys/vmem.h>
+
  void *
  zfs_kmem_alloc(size_t size, int kmflags)
  {
@@ -135,7 +137,7 @@ uint64_t
  kmem_used(void)
  {

-       return (kmem_map->size);
+       return (vmem_size(kmem_arena, VMEM_ALLOC));
  }

  static int

Modified: head/sys/cddl/compat/opensolaris/sys/kmem.h
==============================================================================
--- head/sys/cddl/compat/opensolaris/sys/kmem.h Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/cddl/compat/opensolaris/sys/kmem.h Wed Aug  7 06:21:20 2013        
(r254025)
@@ -32,6 +32,7 @@
  #include <sys/param.h>
  #include <sys/proc.h>
  #include <sys/malloc.h>
+#include <sys/vmem.h>

  #include <vm/uma.h>
  #include <vm/vm.h>
@@ -61,8 +62,6 @@ typedef struct kmem_cache {
        void            *kc_private;
  } kmem_cache_t;

-#define vmem_t void
-
  void *zfs_kmem_alloc(size_t size, int kmflags);
  void zfs_kmem_free(void *buf, size_t size);
  uint64_t kmem_size(void);

Modified: head/sys/compat/linux/linux_misc.c
==============================================================================
--- head/sys/compat/linux/linux_misc.c  Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/compat/linux/linux_misc.c  Wed Aug  7 06:21:20 2013        
(r254025)
@@ -467,7 +467,7 @@ cleanup:

        /* Release the temporary mapping. */
        if (a_out)
-               kmem_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE);
+               kmap_free_wakeup(exec_map, (vm_offset_t)a_out, PAGE_SIZE);

        return (error);
  }

Modified: head/sys/compat/ndis/subr_ntoskrnl.c
==============================================================================
--- head/sys/compat/ndis/subr_ntoskrnl.c        Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/compat/ndis/subr_ntoskrnl.c        Wed Aug  7 06:21:20 2013        
(r254025)
@@ -2489,7 +2489,7 @@ MmAllocateContiguousMemorySpecifyCache(s
                break;
        }

-       ret = (void *)kmem_alloc_contig(kernel_map, size, M_ZERO | M_NOWAIT,
+       ret = (void *)kmem_alloc_contig(kernel_arena, size, M_ZERO | M_NOWAIT,
            lowest, highest, PAGE_SIZE, boundary, memattr);
        if (ret != NULL)
                malloc_type_allocated(M_DEVBUF, round_page(size));

Modified: head/sys/dev/bktr/bktr_core.c
==============================================================================
--- head/sys/dev/bktr/bktr_core.c       Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/bktr/bktr_core.c       Wed Aug  7 06:21:20 2013        
(r254025)
@@ -109,6 +109,7 @@ __FBSDID("$FreeBSD$");
  #include <sys/kernel.h>
  #include <sys/fcntl.h>
  #include <sys/lock.h>
+#include <sys/malloc.h>
  #include <sys/mutex.h>
  #include <sys/proc.h>
  #include <sys/signalvar.h>
@@ -1801,8 +1802,10 @@ video_ioctl( bktr_ptr_t bktr, int unit,
  #else
                                  buf = get_bktr_mem(unit, temp*PAGE_SIZE);
                                  if (buf != 0) {
-                                        kmem_free(kernel_map, bktr->bigbuf,
-                                          (bktr->alloc_pages * PAGE_SIZE));
+                                       contigfree(
+                                         (void *)(uintptr_t)bktr->bigbuf,
+                                          (bktr->alloc_pages * PAGE_SIZE),
+                                         M_DEVBUF);
  #endif

                                        bktr->bigbuf = buf;

Modified: head/sys/dev/drm/drm_scatter.c
==============================================================================
--- head/sys/dev/drm/drm_scatter.c      Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/drm/drm_scatter.c      Wed Aug  7 06:21:20 2013        
(r254025)
@@ -52,7 +52,7 @@ drm_sg_alloc(struct drm_device *dev, str
        entry->busaddr = malloc(entry->pages * sizeof(*entry->busaddr),
            DRM_MEM_SGLISTS, M_WAITOK | M_ZERO);

-       entry->vaddr = kmem_alloc_attr(kernel_map, size, M_WAITOK | M_ZERO,
+       entry->vaddr = kmem_alloc_attr(kernel_arena, size, M_WAITOK | M_ZERO,
            0, BUS_SPACE_MAXADDR_32BIT, VM_MEMATTR_WRITE_COMBINING);
        if (entry->vaddr == 0) {
                drm_sg_cleanup(entry);
@@ -99,7 +99,7 @@ drm_sg_cleanup(struct drm_sg_mem *entry)
                return;

        if (entry->vaddr != 0)
-               kmem_free(kernel_map, entry->vaddr, IDX_TO_OFF(entry->pages));
+               kmem_free(kernel_arena, entry->vaddr, IDX_TO_OFF(entry->pages));

        free(entry->busaddr, DRM_MEM_SGLISTS);
        free(entry, DRM_MEM_DRIVER);

Modified: head/sys/dev/drm2/drm_scatter.c
==============================================================================
--- head/sys/dev/drm2/drm_scatter.c     Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/drm2/drm_scatter.c     Wed Aug  7 06:21:20 2013        
(r254025)
@@ -52,7 +52,7 @@ drm_sg_alloc(struct drm_device *dev, str
        entry->busaddr = malloc(entry->pages * sizeof(*entry->busaddr),
            DRM_MEM_SGLISTS, M_WAITOK | M_ZERO);

-       entry->vaddr = kmem_alloc_attr(kernel_map, size, M_WAITOK | M_ZERO,
+       entry->vaddr = kmem_alloc_attr(kernel_arena, size, M_WAITOK | M_ZERO,
            0, BUS_SPACE_MAXADDR_32BIT, VM_MEMATTR_WRITE_COMBINING);
        if (entry->vaddr == 0) {
                drm_sg_cleanup(entry);
@@ -99,7 +99,7 @@ drm_sg_cleanup(struct drm_sg_mem *entry)
                return;

        if (entry->vaddr != 0)
-               kmem_free(kernel_map, entry->vaddr, IDX_TO_OFF(entry->pages));
+               kmem_free(kernel_arena, entry->vaddr, IDX_TO_OFF(entry->pages));

        free(entry->busaddr, DRM_MEM_SGLISTS);
        free(entry, DRM_MEM_DRIVER);

Modified: head/sys/dev/drm2/i915/intel_ringbuffer.c
==============================================================================
--- head/sys/dev/drm2/i915/intel_ringbuffer.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/drm2/i915/intel_ringbuffer.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -361,7 +361,7 @@ init_pipe_control(struct intel_ring_buff
                goto err_unref;

        pc->gtt_offset = obj->gtt_offset;
-       pc->cpu_page = (uint32_t *)kmem_alloc_nofault(kernel_map, PAGE_SIZE);
+       pc->cpu_page = (uint32_t *)kva_alloc(PAGE_SIZE);
        if (pc->cpu_page == NULL)
                goto err_unpin;
        pmap_qenter((uintptr_t)pc->cpu_page, &obj->pages[0], 1);
@@ -392,7 +392,7 @@ cleanup_pipe_control(struct intel_ring_b

        obj = pc->obj;
        pmap_qremove((vm_offset_t)pc->cpu_page, 1);
-       kmem_free(kernel_map, (uintptr_t)pc->cpu_page, PAGE_SIZE);
+       kva_free((uintptr_t)pc->cpu_page, PAGE_SIZE);
        i915_gem_object_unpin(obj);
        drm_gem_object_unreference(&obj->base);

@@ -968,7 +968,7 @@ static void cleanup_status_page(struct i
                return;

        pmap_qremove((vm_offset_t)ring->status_page.page_addr, 1);
-       kmem_free(kernel_map, (vm_offset_t)ring->status_page.page_addr,
+       kva_free((vm_offset_t)ring->status_page.page_addr,
            PAGE_SIZE);
        i915_gem_object_unpin(obj);
        drm_gem_object_unreference(&obj->base);
@@ -999,8 +999,7 @@ static int init_status_page(struct intel
        }

        ring->status_page.gfx_addr = obj->gtt_offset;
-       ring->status_page.page_addr = (void *)kmem_alloc_nofault(kernel_map,
-           PAGE_SIZE);
+       ring->status_page.page_addr = (void *)kva_alloc(PAGE_SIZE);
        if (ring->status_page.page_addr == NULL) {
                memset(&dev_priv->hws_map, 0, sizeof(dev_priv->hws_map));
                goto err_unpin;

Modified: head/sys/dev/drm2/ttm/ttm_bo_util.c
==============================================================================
--- head/sys/dev/drm2/ttm/ttm_bo_util.c Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/drm2/ttm/ttm_bo_util.c Wed Aug  7 06:21:20 2013        
(r254025)
@@ -498,8 +498,7 @@ static int ttm_bo_kmap_ttm(struct ttm_bu
                        ttm_io_prot(mem->placement);
                map->bo_kmap_type = ttm_bo_map_vmap;
                map->num_pages = num_pages;
-               map->virtual = (void *)kmem_alloc_nofault(kernel_map,
-                   num_pages * PAGE_SIZE);
+               map->virtual = (void *)kva_alloc(num_pages * PAGE_SIZE);
                if (map->virtual != NULL) {
                        for (i = 0; i < num_pages; i++) {
                                /* XXXKIB hack */
@@ -561,7 +560,7 @@ void ttm_bo_kunmap(struct ttm_bo_kmap_ob
                break;
        case ttm_bo_map_vmap:
                pmap_qremove((vm_offset_t)(map->virtual), map->num_pages);
-               kmem_free(kernel_map, (vm_offset_t)map->virtual,
+               kva_free((vm_offset_t)map->virtual,
                    map->num_pages * PAGE_SIZE);
                break;
        case ttm_bo_map_kmap:

Modified: head/sys/dev/xen/blkback/blkback.c
==============================================================================
--- head/sys/dev/xen/blkback/blkback.c  Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/xen/blkback/blkback.c  Wed Aug  7 06:21:20 2013        
(r254025)
@@ -2775,7 +2775,7 @@ xbb_free_communication_mem(struct xbb_so
  {
        if (xbb->kva != 0) {
  #ifndef XENHVM
-               kmem_free(kernel_map, xbb->kva, xbb->kva_size);
+               kva_free(xbb->kva, xbb->kva_size);
  #else
                if (xbb->pseudo_phys_res != NULL) {
                        bus_release_resource(xbb->dev, SYS_RES_MEMORY,
@@ -3014,7 +3014,7 @@ xbb_alloc_communication_mem(struct xbb_s
                device_get_nameunit(xbb->dev), xbb->kva_size,
                xbb->reqlist_kva_size);
  #ifndef XENHVM
-       xbb->kva = kmem_alloc_nofault(kernel_map, xbb->kva_size);
+       xbb->kva = kva_alloc(xbb->kva_size);
        if (xbb->kva == 0)
                return (ENOMEM);
        xbb->gnt_base_addr = xbb->kva;

Modified: head/sys/dev/xen/netback/netback.c
==============================================================================
--- head/sys/dev/xen/netback/netback.c  Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/xen/netback/netback.c  Wed Aug  7 06:21:20 2013        
(r254025)
@@ -621,7 +621,7 @@ xnb_free_communication_mem(struct xnb_so
  {
        if (xnb->kva != 0) {
  #ifndef XENHVM
-               kmem_free(kernel_map, xnb->kva, xnb->kva_size);
+               kva_free(xnb->kva, xnb->kva_size);
  #else
                if (xnb->pseudo_phys_res != NULL) {
                        bus_release_resource(xnb->dev, SYS_RES_MEMORY,
@@ -811,7 +811,7 @@ xnb_alloc_communication_mem(struct xnb_s
                xnb->kva_size += xnb->ring_configs[i].ring_pages * PAGE_SIZE;
        }
  #ifndef XENHVM
-       xnb->kva = kmem_alloc_nofault(kernel_map, xnb->kva_size);
+       xnb->kva = kva_alloc(xnb->kva_size);
        if (xnb->kva == 0)
                return (ENOMEM);
        xnb->gnt_base_addr = xnb->kva;

Modified: head/sys/dev/xen/xenpci/xenpci.c
==============================================================================
--- head/sys/dev/xen/xenpci/xenpci.c    Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/dev/xen/xenpci/xenpci.c    Wed Aug  7 06:21:20 2013        
(r254025)
@@ -383,7 +383,7 @@ xenpci_attach(device_t dev)
        if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp))
                panic("HYPERVISOR_memory_op failed");

-       shared_va = kmem_alloc_nofault(kernel_map, PAGE_SIZE);
+       shared_va = kva_alloc(PAGE_SIZE);
        pmap_kenter(shared_va, shared_info_pa);
        HYPERVISOR_shared_info = (void *) shared_va;


Modified: head/sys/i386/i386/machdep.c
==============================================================================
--- head/sys/i386/i386/machdep.c        Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/i386/machdep.c        Wed Aug  7 06:21:20 2013        
(r254025)
@@ -3178,9 +3178,9 @@ f00f_hack(void *unused)

        printf("Intel Pentium detected, installing workaround for F00F bug\n");

-       tmp = kmem_alloc(kernel_map, PAGE_SIZE * 2);
+       tmp = kmem_malloc(kernel_arena, PAGE_SIZE * 2, M_WAITOK | M_ZERO);
        if (tmp == 0)
-               panic("kmem_alloc returned 0");
+               panic("kmem_malloc returned 0");

        /* Put the problematic entry (#6) at the end of the lower page. */
        new_idt = (struct gate_descriptor*)
@@ -3189,9 +3189,7 @@ f00f_hack(void *unused)
        r_idt.rd_base = (u_int)new_idt;
        lidt(&r_idt);
        idt = new_idt;
-       if (vm_map_protect(kernel_map, tmp, tmp + PAGE_SIZE,
-                          VM_PROT_READ, FALSE) != KERN_SUCCESS)
-               panic("vm_map_protect failed");
+       pmap_protect(kernel_pmap, tmp, tmp + PAGE_SIZE, VM_PROT_READ);
  }
  #endif /* defined(I586_CPU) && !NO_F00F_HACK */


Modified: head/sys/i386/i386/mp_machdep.c
==============================================================================
--- head/sys/i386/i386/mp_machdep.c     Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/i386/mp_machdep.c     Wed Aug  7 06:21:20 2013        
(r254025)
@@ -959,8 +959,10 @@ start_all_aps(void)

                /* allocate and set up a boot stack data page */
                bootstacks[cpu] =
-                   (char *)kmem_alloc(kernel_map, KSTACK_PAGES * PAGE_SIZE);
-               dpcpu = (void *)kmem_alloc(kernel_map, DPCPU_SIZE);
+                   (char *)kmem_malloc(kernel_arena, KSTACK_PAGES * PAGE_SIZE,
+                   M_WAITOK | M_ZERO);
+               dpcpu = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
+                   M_WAITOK | M_ZERO);
                /* setup a vector to our boot code */
                *((volatile u_short *) WARMBOOT_OFF) = WARMBOOT_TARGET;
                *((volatile u_short *) WARMBOOT_SEG) = (boot_address >> 4);

Modified: head/sys/i386/i386/pmap.c
==============================================================================
--- head/sys/i386/i386/pmap.c   Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/i386/i386/pmap.c   Wed Aug  7 06:21:20 2013        (r254025)
@@ -655,7 +655,7 @@ pmap_pdpt_allocf(uma_zone_t zone, int by

        /* Inform UMA that this allocator uses kernel_map/object. */
        *flags = UMA_SLAB_KERNEL;
-       return ((void *)kmem_alloc_contig(kernel_map, bytes, wait, 0x0ULL,
+       return ((void *)kmem_alloc_contig(kernel_arena, bytes, wait, 0x0ULL,
            0xffffffffULL, 1, 0, VM_MEMATTR_DEFAULT));
  }
  #endif
@@ -783,13 +783,13 @@ pmap_init(void)
         */
        s = (vm_size_t)(pv_npg * sizeof(struct md_page));
        s = round_page(s);
-       pv_table = (struct md_page *)kmem_alloc(kernel_map, s);
+       pv_table = (struct md_page *)kmem_malloc(kernel_arena, s,
+           M_WAITOK | M_ZERO);
        for (i = 0; i < pv_npg; i++)
                TAILQ_INIT(&pv_table[i].pv_list);

        pv_maxchunks = MAX(pv_entry_max / _NPCPV, maxproc);
-       pv_chunkbase = (struct pv_chunk *)kmem_alloc_nofault(kernel_map,
-           PAGE_SIZE * pv_maxchunks);
+       pv_chunkbase = (struct pv_chunk *)kva_alloc(PAGE_SIZE * pv_maxchunks);
        if (pv_chunkbase == NULL)
                panic("pmap_init: not enough kvm for pv chunks");
        pmap_ptelist_init(&pv_vafree, pv_chunkbase, pv_maxchunks);
@@ -1747,8 +1747,7 @@ pmap_pinit(pmap_t pmap)
         * page directory table.
         */
        if (pmap->pm_pdir == NULL) {
-               pmap->pm_pdir = (pd_entry_t *)kmem_alloc_nofault(kernel_map,
-                   NBPTD);
+               pmap->pm_pdir = (pd_entry_t *)kva_alloc(NBPTD);
                if (pmap->pm_pdir == NULL) {
                        PMAP_LOCK_DESTROY(pmap);
                        return (0);
@@ -5044,7 +5043,7 @@ pmap_mapdev_attr(vm_paddr_t pa, vm_size_
        if (pa < KERNLOAD && pa + size <= KERNLOAD)
                va = KERNBASE + pa;
        else
-               va = kmem_alloc_nofault(kernel_map, size);
+               va = kva_alloc(size);
        if (!va)
                panic("pmap_mapdev: Couldn't alloc kernel virtual memory");

@@ -5079,7 +5078,7 @@ pmap_unmapdev(vm_offset_t va, vm_size_t
        base = trunc_page(va);
        offset = va & PAGE_MASK;
        size = round_page(offset + size);
-       kmem_free(kernel_map, base, size);
+       kva_free(base, size);
  }

  /*

Modified: head/sys/i386/i386/sys_machdep.c
==============================================================================
--- head/sys/i386/i386/sys_machdep.c    Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/i386/sys_machdep.c    Wed Aug  7 06:21:20 2013        
(r254025)
@@ -164,7 +164,7 @@ sysarch(td, uap)
                break;
        case I386_SET_LDT:
                if (kargs.largs.descs != NULL) {
-                       lp = (union descriptor *)kmem_malloc(kernel_map,
+                       lp = (union descriptor *)kmem_malloc(kernel_arena,
                            kargs.largs.num * sizeof(union descriptor),
                            M_WAITOK);
                        if (lp == NULL) {
@@ -175,7 +175,7 @@ sysarch(td, uap)
                            kargs.largs.num * sizeof(union descriptor));
                        if (error == 0)
                                error = i386_set_ldt(td, &kargs.largs, lp);
-                       kmem_free(kernel_map, (vm_offset_t)lp,
+                       kmem_free(kernel_arena, (vm_offset_t)lp,
                            kargs.largs.num * sizeof(union descriptor));
                } else {
                        error = i386_set_ldt(td, &kargs.largs, NULL);
@@ -299,7 +299,7 @@ i386_extend_pcb(struct thread *td)
                0                       /* granularity */
        };

-       ext = (struct pcb_ext *)kmem_malloc(kernel_map, ctob(IOPAGES+1),
+       ext = (struct pcb_ext *)kmem_malloc(kernel_arena, ctob(IOPAGES+1),
            M_WAITOK);
        if (ext == 0)
                return (ENOMEM);
@@ -473,7 +473,7 @@ user_ldt_alloc(struct mdproc *mdp, int l
                  M_SUBPROC, M_WAITOK);

          new_ldt->ldt_len = len = NEW_MAX_LD(len);
-        new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_map,
+        new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena,
                  round_page(len * sizeof(union descriptor)), M_WAITOK);
          if (new_ldt->ldt_base == NULL) {
                  free(new_ldt, M_SUBPROC);
@@ -513,7 +513,7 @@ user_ldt_alloc(struct mdproc *mdp, int l
                M_SUBPROC, M_WAITOK);

        new_ldt->ldt_len = len = NEW_MAX_LD(len);
-       new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_map,
+       new_ldt->ldt_base = (caddr_t)kmem_malloc(kernel_arena,
                len * sizeof(union descriptor), M_WAITOK);
        if (new_ldt->ldt_base == NULL) {
                free(new_ldt, M_SUBPROC);
@@ -576,7 +576,7 @@ user_ldt_deref(struct proc_ldt *pldt)
        mtx_assert(&dt_lock, MA_OWNED);
        if (--pldt->ldt_refcnt == 0) {
                mtx_unlock_spin(&dt_lock);
-               kmem_free(kernel_map, (vm_offset_t)pldt->ldt_base,
+               kmem_free(kernel_arena, (vm_offset_t)pldt->ldt_base,
                        pldt->ldt_len * sizeof(union descriptor));
                free(pldt, M_SUBPROC);
        } else
@@ -855,7 +855,7 @@ i386_ldt_grow(struct thread *td, int len
                                 * free the new object and return.
                                 */
                                mtx_unlock_spin(&dt_lock);
-                               kmem_free(kernel_map,
+                               kmem_free(kernel_arena,
                                   (vm_offset_t)new_ldt->ldt_base,
                                   new_ldt->ldt_len * sizeof(union descriptor));
                                free(new_ldt, M_SUBPROC);
@@ -889,7 +889,7 @@ i386_ldt_grow(struct thread *td, int len
                mtx_unlock_spin(&dt_lock);
  #endif
                if (old_ldt_base != NULL_LDT_BASE) {
-                       kmem_free(kernel_map, (vm_offset_t)old_ldt_base,
+                       kmem_free(kernel_arena, (vm_offset_t)old_ldt_base,
                            old_ldt_len * sizeof(union descriptor));
                        free(new_ldt, M_SUBPROC);
                }

Modified: head/sys/i386/i386/vm_machdep.c
==============================================================================
--- head/sys/i386/i386/vm_machdep.c     Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/i386/vm_machdep.c     Wed Aug  7 06:21:20 2013        
(r254025)
@@ -355,7 +355,7 @@ cpu_thread_clean(struct thread *td)
                 * XXX do we need to move the TSS off the allocated pages
                 * before freeing them?  (not done here)
                 */
-               kmem_free(kernel_map, (vm_offset_t)pcb->pcb_ext,
+               kva_free((vm_offset_t)pcb->pcb_ext,
                    ctob(IOPAGES + 1));
                pcb->pcb_ext = NULL;
        }
@@ -751,7 +751,7 @@ sf_buf_init(void *arg)

        sf_buf_active = hashinit(nsfbufs, M_TEMP, &sf_buf_hashmask);
        TAILQ_INIT(&sf_buf_freelist);
-       sf_base = kmem_alloc_nofault(kernel_map, nsfbufs * PAGE_SIZE);
+       sf_base = kva_alloc(nsfbufs * PAGE_SIZE);
        sf_bufs = malloc(nsfbufs * sizeof(struct sf_buf), M_TEMP,
            M_NOWAIT | M_ZERO);
        for (i = 0; i < nsfbufs; i++) {

Modified: head/sys/i386/ibcs2/imgact_coff.c
==============================================================================
--- head/sys/i386/ibcs2/imgact_coff.c   Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/ibcs2/imgact_coff.c   Wed Aug  7 06:21:20 2013        
(r254025)
@@ -146,7 +146,7 @@ load_coff_section(struct vmspace *vmspac

        error = copyout(data_buf, (caddr_t) map_addr, copy_len);

-       kmem_free_wakeup(exec_map, (vm_offset_t)data_buf, PAGE_SIZE);
+       kmap_free_wakeup(exec_map, (vm_offset_t)data_buf, PAGE_SIZE);

        return error;
  }
@@ -280,7 +280,7 @@ coff_load_file(struct thread *td, char *
        error = 0;

   dealloc_and_fail:
-       kmem_free_wakeup(exec_map, (vm_offset_t)ptr,  PAGE_SIZE);
+       kmap_free_wakeup(exec_map, (vm_offset_t)ptr,  PAGE_SIZE);
   fail:
        VOP_UNLOCK(vp, 0);
   unlocked_fail:
@@ -417,7 +417,7 @@ exec_coff_imgact(imgp)
                        }
                        free(libbuf, M_TEMP);
                }
-               kmem_free_wakeup(exec_map, (vm_offset_t)buf, len);
+               kmap_free_wakeup(exec_map, (vm_offset_t)buf, len);
                if (error)
                        goto fail;
                }

Modified: head/sys/i386/pci/pci_cfgreg.c
==============================================================================
--- head/sys/i386/pci/pci_cfgreg.c      Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/pci/pci_cfgreg.c      Wed Aug  7 06:21:20 2013        
(r254025)
@@ -562,7 +562,7 @@ pcie_cfgregopen(uint64_t base, uint8_t m
                if (pcie_array == NULL)
                        return (0);

-               va = kmem_alloc_nofault(kernel_map, PCIE_CACHE * PAGE_SIZE);
+               va = kva_alloc(PCIE_CACHE * PAGE_SIZE);
                if (va == 0) {
                        free(pcie_array, M_DEVBUF);
                        return (0);

Modified: head/sys/i386/xen/mp_machdep.c
==============================================================================
--- head/sys/i386/xen/mp_machdep.c      Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/i386/xen/mp_machdep.c      Wed Aug  7 06:21:20 2013        
(r254025)
@@ -746,7 +746,8 @@ start_all_aps(void)
                /* Get per-cpu data */
                pc = &__pcpu[bootAP];
                pcpu_init(pc, bootAP, sizeof(struct pcpu));
-               dpcpu_init((void *)kmem_alloc(kernel_map, DPCPU_SIZE), bootAP);
+               dpcpu_init((void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
+                   M_WAITOK | M_ZERO), bootAP);
                pc->pc_apic_id = cpu_apic_ids[bootAP];
                pc->pc_prvspace = pc;
                pc->pc_curthread = 0;
@@ -833,8 +834,8 @@ cpu_initialize_context(unsigned int cpu)
                pmap_zero_page(m[i]);

        }
-       boot_stack = kmem_alloc_nofault(kernel_map, PAGE_SIZE);
-       newPTD = kmem_alloc_nofault(kernel_map, NPGPTD * PAGE_SIZE);
+       boot_stack = kva_alloc(PAGE_SIZE);
+       newPTD = kva_alloc(NPGPTD * PAGE_SIZE);
        ma[0] = VM_PAGE_TO_MACH(m[0])|PG_V;

  #ifdef PAE    
@@ -856,7 +857,7 @@ cpu_initialize_context(unsigned int cpu)
            nkpt*sizeof(vm_paddr_t));

        pmap_qremove(newPTD, 4);
-       kmem_free(kernel_map, newPTD, 4 * PAGE_SIZE);
+       kva_free(newPTD, 4 * PAGE_SIZE);
        /*
         * map actual idle stack to boot_stack
         */

Modified: head/sys/i386/xen/pmap.c
==============================================================================
--- head/sys/i386/xen/pmap.c    Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/i386/xen/pmap.c    Wed Aug  7 06:21:20 2013        (r254025)
@@ -620,8 +620,7 @@ pmap_init(void)
        pv_entry_high_water = 9 * (pv_entry_max / 10);

        pv_maxchunks = MAX(pv_entry_max / _NPCPV, maxproc);
-       pv_chunkbase = (struct pv_chunk *)kmem_alloc_nofault(kernel_map,
-           PAGE_SIZE * pv_maxchunks);
+       pv_chunkbase = (struct pv_chunk *)kva_alloc(PAGE_SIZE * pv_maxchunks);
        if (pv_chunkbase == NULL)
                panic("pmap_init: not enough kvm for pv chunks");
        pmap_ptelist_init(&pv_vafree, pv_chunkbase, pv_maxchunks);
@@ -1460,8 +1459,7 @@ pmap_pinit(pmap_t pmap)
         * page directory table.
         */
        if (pmap->pm_pdir == NULL) {
-               pmap->pm_pdir = (pd_entry_t *)kmem_alloc_nofault(kernel_map,
-                   NBPTD);
+               pmap->pm_pdir = (pd_entry_t *)kva_alloc(NBPTD);
                if (pmap->pm_pdir == NULL) {
                        PMAP_LOCK_DESTROY(pmap);
  #ifdef HAMFISTED_LOCKING
@@ -1470,7 +1468,7 @@ pmap_pinit(pmap_t pmap)
                        return (0);
                }
  #ifdef PAE
-               pmap->pm_pdpt = (pd_entry_t *)kmem_alloc_nofault(kernel_map, 1);
+               pmap->pm_pdpt = (pd_entry_t *)kva_alloc(1);
  #endif
        }

@@ -4022,7 +4020,7 @@ pmap_mapdev_attr(vm_paddr_t pa, vm_size_
        if (pa < KERNLOAD && pa + size <= KERNLOAD)
                va = KERNBASE + pa;
        else
-               va = kmem_alloc_nofault(kernel_map, size);
+               va = kva_alloc(size);
        if (!va)
                panic("pmap_mapdev: Couldn't alloc kernel virtual memory");

@@ -4057,7 +4055,7 @@ pmap_unmapdev(vm_offset_t va, vm_size_t
        base = trunc_page(va);
        offset = va & PAGE_MASK;
        size = round_page(offset + size);
-       kmem_free(kernel_map, base, size);
+       kva_free(base, size);
  }

  /*

Modified: head/sys/ia64/ia64/mp_machdep.c
==============================================================================
--- head/sys/ia64/ia64/mp_machdep.c     Wed Aug  7 06:05:57 2013        
(r254024)
+++ head/sys/ia64/ia64/mp_machdep.c     Wed Aug  7 06:21:20 2013        
(r254025)
@@ -304,7 +304,8 @@ cpu_mp_add(u_int acpi_id, u_int id, u_in
        if (cpuid != 0) {
                pc = (struct pcpu *)malloc(sizeof(*pc), M_SMP, M_WAITOK);
                pcpu_init(pc, cpuid, sizeof(*pc));
-               dpcpu = (void *)kmem_alloc(kernel_map, DPCPU_SIZE);
+               dpcpu = (void *)kmem_malloc(kernel_arena, DPCPU_SIZE,
+                   M_WAITOK | M_ZERO);
                dpcpu_init(dpcpu, cpuid);
        } else
                pc = pcpup;

Modified: head/sys/kern/imgact_gzip.c
==============================================================================
--- head/sys/kern/imgact_gzip.c Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/kern/imgact_gzip.c Wed Aug  7 06:21:20 2013        (r254025)
@@ -137,7 +137,7 @@ exec_gzip_imgact(imgp)
        }

        if (igz.inbuf)
-               kmem_free_wakeup(exec_map, (vm_offset_t)igz.inbuf, PAGE_SIZE);
+               kmap_free_wakeup(exec_map, (vm_offset_t)igz.inbuf, PAGE_SIZE);
        if (igz.error || error) {
                printf("Output=%lu ", igz.output);
                printf("Inflate_error=%d igz.error=%d where=%d\n",
@@ -310,7 +310,7 @@ NextByte(void *vp)
                return igz->inbuf[(igz->idx++) - igz->offset];
        }
        if (igz->inbuf)
-               kmem_free_wakeup(exec_map, (vm_offset_t)igz->inbuf, PAGE_SIZE);
+               kmap_free_wakeup(exec_map, (vm_offset_t)igz->inbuf, PAGE_SIZE);
        igz->offset = igz->idx & ~PAGE_MASK;

        error = vm_mmap(exec_map,       /* map */

Modified: head/sys/kern/init_main.c
==============================================================================
--- head/sys/kern/init_main.c   Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/kern/init_main.c   Wed Aug  7 06:21:20 2013        (r254025)
@@ -461,11 +461,6 @@ proc0_init(void *dummy __unused)
        sleepinit();

        /*
-        * additional VM structures
-        */
-       vm_init2();
-
-       /*
         * Create process 0 (the swapper).
         */
        LIST_INSERT_HEAD(&allproc, p, p_list);

Modified: head/sys/kern/kern_exec.c
==============================================================================
--- head/sys/kern/kern_exec.c   Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/kern/kern_exec.c   Wed Aug  7 06:21:20 2013        (r254025)
@@ -1192,7 +1192,7 @@ int
  exec_alloc_args(struct image_args *args)
  {

-       args->buf = (char *)kmem_alloc_wait(exec_map, PATH_MAX + ARG_MAX);
+       args->buf = (char *)kmap_alloc_wait(exec_map, PATH_MAX + ARG_MAX);
        return (args->buf != NULL ? 0 : ENOMEM);
  }

@@ -1201,7 +1201,7 @@ exec_free_args(struct image_args *args)
  {

        if (args->buf != NULL) {
-               kmem_free_wakeup(exec_map, (vm_offset_t)args->buf,
+               kmap_free_wakeup(exec_map, (vm_offset_t)args->buf,
                    PATH_MAX + ARG_MAX);
                args->buf = NULL;
        }

Modified: head/sys/kern/kern_malloc.c
==============================================================================
--- head/sys/kern/kern_malloc.c Wed Aug  7 06:05:57 2013        (r254024)
+++ head/sys/kern/kern_malloc.c Wed Aug  7 06:21:20 2013        (r254025)
@@ -62,9 +62,11 @@ __FBSDID("$FreeBSD$");
  #include <sys/sbuf.h>
  #include <sys/sysctl.h>
  #include <sys/time.h>
+#include <sys/vmem.h>

  #include <vm/vm.h>
  #include <vm/pmap.h>
+#include <vm/vm_pageout.h>
  #include <vm/vm_param.h>
  #include <vm/vm_kern.h>
  #include <vm/vm_extern.h>
@@ -113,12 +115,7 @@ MALLOC_DEFINE(M_TEMP, "temp", "misc temp
  MALLOC_DEFINE(M_IP6OPT, "ip6opt", "IPv6 options");
  MALLOC_DEFINE(M_IP6NDP, "ip6ndp", "IPv6 Neighbor Discovery");

-static void kmeminit(void *);
-SYSINIT(kmem, SI_SUB_KMEM, SI_ORDER_FIRST, kmeminit, NULL);
-
  static struct malloc_type *kmemstatistics;
-static vm_offset_t kmembase;
-static vm_offset_t kmemlimit;
  static int kmemcount;

  #define KMEM_ZSHIFT   4
@@ -203,12 +200,12 @@ SYSCTL_UINT(_vm, OID_AUTO, kmem_size_sca
  static int sysctl_kmem_map_size(SYSCTL_HANDLER_ARGS);
  SYSCTL_PROC(_vm, OID_AUTO, kmem_map_size,
      CTLFLAG_RD | CTLTYPE_ULONG | CTLFLAG_MPSAFE, NULL, 0,
-    sysctl_kmem_map_size, "LU", "Current kmem_map allocation size");
+    sysctl_kmem_map_size, "LU", "Current kmem allocation size");

  static int sysctl_kmem_map_free(SYSCTL_HANDLER_ARGS);
  SYSCTL_PROC(_vm, OID_AUTO, kmem_map_free,
      CTLFLAG_RD | CTLTYPE_ULONG | CTLFLAG_MPSAFE, NULL, 0,
-    sysctl_kmem_map_free, "LU", "Largest contiguous free range in kmem_map");
+    sysctl_kmem_map_free, "LU", "Free space in kmem");

  /*
   * The malloc_mtx protects the kmemstatistics linked list.
@@ -253,7 +250,7 @@ sysctl_kmem_map_size(SYSCTL_HANDLER_ARGS
  {
        u_long size;

-       size = kmem_map->size;
+       size = vmem_size(kmem_arena, VMEM_ALLOC);
        return (sysctl_handle_long(oidp, &size, 0, req));
  }

@@ -262,10 +259,7 @@ sysctl_kmem_map_free(SYSCTL_HANDLER_ARGS
  {
        u_long size;

-       vm_map_lock_read(kmem_map);
-       size = kmem_map->root != NULL ? kmem_map->root->max_free :
-           kmem_map->max_offset - kmem_map->min_offset;
-       vm_map_unlock_read(kmem_map);
+       size = vmem_size(kmem_arena, VMEM_FREE);
        return (sysctl_handle_long(oidp, &size, 0, req));
  }

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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Does this need a param.h bump?
At least x11/nvidia-driver is sensitive to this.

- Nikolai Lifanov

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