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[SPARC64]: Deal with PTE layout differences in SUN4V.

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Yes, you heard it right, they changed the PTE layout for
SUN4V.  Ho hum...

This is the simple and inefficient way to support this.
It'll get optimized, don't worry.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-02-11 21:57:54 -08:00
parent 490384e752
commit c4bce90ea2
12 changed files with 716 additions and 622 deletions
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12
arch/sparc64/kernel/ktlb.S
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@@ -131,16 +131,8 @@ kvmap_dtlb_4v:
brgez,pn %g4, kvmap_dtlb_nonlinear
nop
#define KERN_HIGHBITS ((_PAGE_VALID|_PAGE_SZ4MB)^0xfffff80000000000)
#define KERN_LOWBITS (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W)
sethi %uhi(KERN_HIGHBITS), %g2
or %g2, %ulo(KERN_HIGHBITS), %g2
sllx %g2, 32, %g2
or %g2, KERN_LOWBITS, %g2
#undef KERN_HIGHBITS
#undef KERN_LOWBITS
sethi %hi(kern_linear_pte_xor), %g2
ldx [%g2 + %lo(kern_linear_pte_xor)], %g2
.globl kvmap_linear_patch
kvmap_linear_patch: