Include vm/pmap.h for pmap_kextract.

Merge from HEAD

Use pmap_mapdev()/unmapdev() to temporarily map on-chip sram while copying
the startup trampoline code. The old code allocated a kva page, mapped it
using using pmap_kenter_nocache(), then freed the

Use pmap_mapdev()/unmapdev() to temporarily map on-chip sram while copying
the startup trampoline code. The old code allocated a kva page, mapped it
using using pmap_kenter_nocache(), then freed the kva without destroying
the mapping. This is the only use of pmap_kenter_nocache() in the system,
so redoing this one use of allows it to be garbage collected in the
near future.

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IFC @r269962

Submitted by: Anish Gupta (akgupt3@gmail.com)

Merge head from 7/28

Avoid using hard-coded SoC's register address in mptramp code for Armada XP

SoC's registers base address may differ between boards
(0xf1000000 or 0xd0000000). Therefore, in order to use
the proper C

Avoid using hard-coded SoC's register address in mptramp code for Armada XP

SoC's registers base address may differ between boards
(0xf1000000 or 0xd0000000). Therefore, in order to use
the proper CPU Boot Address Redirect register during SMP
initialization in mptramp the real, physical address has
to be passed to mptramp based on the value from DT.

Reviewed by: gber

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Fix broken SMP startup on Armada XP after r265694

During Armada's platform_mp_start_ap(), mptramp code
is being copied to the specific physical location (0xffff0000).
Before r265694 the address to w

Fix broken SMP startup on Armada XP after r265694

During Armada's platform_mp_start_ap(), mptramp code
is being copied to the specific physical location (0xffff0000).
Before r265694 the address to which the code should be copied
was equal to the address of mpentry routine that followed the
mptramp in locore.S. Now the mptramp end address should be
exported and used as a copy limit.

Reviewed by: gber

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MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

Merge from head up to r262415.

Move the declaration for mpentry() into a header file instead of pasting
it into a bunch of different .c files. Remove declarations for the unused
mptramp() function from everywhere except AramadaXP

Move the declaration for mpentry() into a header file instead of pasting
it into a bunch of different .c files. Remove declarations for the unused
mptramp() function from everywhere except AramadaXP (and I think it's
really not used there either, because the code that references it appears
to be insanely does-nothing in nature).

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Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Merge from head

IFC @ r255209

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 alloc

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

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IFC @ r254014

IFC @253398

Merge fresh head.

Properly initialize Armada XP MP subsystem.

- correct setting of Auxiliary Control Register for MP mode
- correct setting of Auxiliarty Debug registers
- cleanup management of memory contains bootup

Properly initialize Armada XP MP subsystem.

- correct setting of Auxiliary Control Register for MP mode
- correct setting of Auxiliarty Debug registers
- cleanup management of memory contains bootup code
- early initialization of Coherency Fabric (MP and not-MP mode)
- enable Snoop Filtering

Obtained from: Semihalf

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MFC

MFC @ r241285