obp/obp/arch/sun4v/niagara/tlbsetup.fth

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\ Hypervisor Software File: tlbsetup.fth
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id: @(#)tlbsetup.fth 1.1 06/02/16
purpose: Implements low level tlb code for sun4v class CPUs
copyright: Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headers
\ %o0 = Memory base addr
\ %o1 = Memory size
label  setup-i/d-tlbs

   %g0 0        %g0   save

   %i0                  %o0     move    \ %o0: VA = membase
   %i0                  %o1     move    \ %o1: PA = membase
   %g0  3               %o2     add     \ %o2: size = 4M
   setup-itlb-entry             call
   %g0  0               %o3     add     \ %o3: Mode = none

   %i0                  %o0     move    \ %o0: VA = membase
   %i0                  %o1     move    \ %o1: PA = membase
   %g0  3               %o2     add     \ %o2: size = 4M
   setup-dtlb-entry             call
   %g0  0               %o3     add     \ %o3: Mode = none

   monvirtbase          %o0     set     \ %o0: VA = f000.0000
   %i0                  %o1     move    \ %o1: PA = membase
   %g0  3               %o2     add     \ %o2: size = 4M
   setup-itlb-entry             call
   %g0  0               %o3     add     \ %o3: Mode = none

   RAMbase              %o0     set     \ %o0: VA = RAMbase
   2meg RAMsize-start - %o1     set
   %i0  %o1             %o1     add     \ %o1: PA = membase + 2M - 64K
   %g0  1               %o2     add     \ %o2: Size = 64K
   setup-dtlb-entry             call
   %g0  0               %o3     add     \ %o3: Mode = none

   monvirtbase          %o0     set     \ %o0: VA = f000.0000
   %i0                  %o1     move    \ %o1: PA = membase
   %g0  3               %o2     add     \ %o2: size = 4M
   setup-dtlb-entry             call
   %g0  0               %o3     add     \ %o3: Mode = none

   ret
   %g0 %g0 %g0 restore

end-code