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

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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>
This commit is contained in:
David S. Miller
2005-10-04 15:23:20 -07:00
parent dd7205ed0f
commit 0835ae0f27
8 changed files with 47 additions and 185 deletions
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23
arch/sparc64/kernel/rtrap.S
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@@ -256,9 +256,8 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1
brnz,pn %l3, kern_rtt
mov PRIMARY_CONTEXT, %l7
ldxa [%l7 + %l7] ASI_DMMU, %l0
cplus_rtrap_insn_1:
sethi %hi(0), %l1
sllx %l1, 32, %l1
sethi %hi(sparc64_kern_pri_nuc_bits), %l1
ldx [%l1 + %lo(sparc64_kern_pri_nuc_bits)], %l1
or %l0, %l1, %l0
stxa %l0, [%l7] ASI_DMMU
flush %g6
@@ -345,21 +344,3 @@ kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5
wr %g0, FPRS_DU, %fprs
ba,pt %xcc, rt_continue
stb %l5, [%g6 + TI_FPDEPTH]
cplus_rinsn_1:
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %l1
.globl cheetah_plus_patch_rtrap
cheetah_plus_patch_rtrap:
/* We configure the dTLB512_0 for 4MB pages and the
* dTLB512_1 for 8K pages when in context zero.
*/
sethi %hi(cplus_rinsn_1), %o0
sethi %hi(cplus_rtrap_insn_1), %o2
lduw [%o0 + %lo(cplus_rinsn_1)], %o1
or %o2, %lo(cplus_rtrap_insn_1), %o2
stw %o1, [%o2]
flush %o2
retl
nop