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authorDavid S. Miller <davem@sunset.davemloft.net>2006-02-12 08:57:54 +0300
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 12:12:25 +0300
commitc4bce90ea2069e5a87beac806de3090ab32128d5 (patch)
tree3983a206c8060ef65ba17945d1c9f69e68d88b3d /arch/sparc64/lib/clear_page.S
parent490384e752a43aa281ed533e9de2da36df25c337 (diff)
downloadlinux-c4bce90ea2069e5a87beac806de3090ab32128d5.tar.xz
[SPARC64]: Deal with PTE layout differences in SUN4V.
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>
Diffstat (limited to 'arch/sparc64/lib/clear_page.S')
-rw-r--r--arch/sparc64/lib/clear_page.S8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/sparc64/lib/clear_page.S b/arch/sparc64/lib/clear_page.S
index cdc634bceba0..77e531f6c2a7 100644
--- a/arch/sparc64/lib/clear_page.S
+++ b/arch/sparc64/lib/clear_page.S
@@ -23,9 +23,6 @@
* disable preemption during the clear.
*/
-#define TTE_BITS_TOP (_PAGE_VALID | _PAGE_SZBITS)
-#define TTE_BITS_BOTTOM (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W)
-
.text
.globl _clear_page
@@ -44,12 +41,11 @@ clear_user_page: /* %o0=dest, %o1=vaddr */
sethi %hi(PAGE_SIZE), %o4
sllx %g2, 32, %g2
- sethi %uhi(TTE_BITS_TOP), %g3
+ sethi %hi(PAGE_KERNEL_LOCKED), %g3
- sllx %g3, 32, %g3
+ ldx [%g3 + %lo(PAGE_KERNEL_LOCKED)], %g3
sub %o0, %g2, %g1 ! paddr
- or %g3, TTE_BITS_BOTTOM, %g3
and %o1, %o4, %o0 ! vaddr D-cache alias bit
or %g1, %g3, %g1 ! TTE data