[SPARC64]: Replace cheetah+ code patching with variables.

Instead of code patching to handle the page size fields in
the context registers, just use variables from which we get
the proper values.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 11 deletions

diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index 89f2fcfcd662..9478551cb020 100644
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -336,20 +336,13 @@ do_unlock:
         call            init_irqwork_curcpu
          nop
 
-        BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g2,g3,1f)
-        ba,pt   %xcc, 2f
-         nop
-
-1:      /* Start using proper page size encodings in ctx register.  */
-        sethi   %uhi(CTX_CHEETAH_PLUS_NUC), %g3
+        /* Start using proper page size encodings in ctx register.  */
+        sethi   %hi(sparc64_kern_pri_context), %g3
+        ldx     [%g3 + %lo(sparc64_kern_pri_context)], %g2
         mov     PRIMARY_CONTEXT, %g1
-        sllx    %g3, 32, %g3
-        sethi   %hi(CTX_CHEETAH_PLUS_CTX0), %g2
-        or      %g3, %g2, %g3
-        stxa    %g3, [%g1] ASI_DMMU
+        stxa    %g2, [%g1] ASI_DMMU
         membar  #Sync
 
-2:
         rdpr            %pstate, %o1
         or              %o1, PSTATE_IE, %o1
         wrpr            %o1, 0, %pstate