[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, 5 insertions, 28 deletions

diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index 89406f9649a9..24340496cdd3 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -325,23 +325,7 @@ cheetah_tlb_fixup:
 1:      sethi   %hi(tlb_type), %g1
         stw     %g2, [%g1 + %lo(tlb_type)]
 
-        BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f)
-        ba,pt   %xcc, 2f
-         nop
-
-1:      /* Patch context register writes to support nucleus page
-         * size correctly.
-         */
-        call    cheetah_plus_patch_etrap
-         nop
-        call    cheetah_plus_patch_rtrap
-         nop
-        call    cheetah_plus_patch_fpdis
-         nop
-        call    cheetah_plus_patch_winfixup
-         nop
-
-2:      /* Patch copy/page operations to cheetah optimized versions. */
+        /* Patch copy/page operations to cheetah optimized versions. */
         call    cheetah_patch_copyops
          nop
         call    cheetah_patch_copy_page
@@ -484,20 +468,13 @@ spitfire_vpte_base:
         call    prom_set_trap_table
          sethi  %hi(sparc64_ttable_tl0), %o0
 
-        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