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-rw-r--r--arch/sparc64/kernel/entry.S84
1 files changed, 5 insertions, 79 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 563fa4e..b3511ff 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -1628,84 +1628,10 @@ __flushw_user:
2: retl
nop
- /* Read cpu ID from hardware, return in %g6.
- * (callers_pc - 4) is in %g1. Patched at boot time.
- *
- * Default is spitfire implementation.
- *
- * The instruction sequence needs to be 5 instructions
- * in order to fit the longest implementation, which is
- * currently starfire.
- */
- .align 32
- .globl __get_cpu_id
-__get_cpu_id:
- ldxa [%g0] ASI_UPA_CONFIG, %g6
- srlx %g6, 17, %g6
- jmpl %g1 + 0x4, %g0
- and %g6, 0x1f, %g6
- nop
-
-__get_cpu_id_cheetah_safari:
- ldxa [%g0] ASI_SAFARI_CONFIG, %g6
- srlx %g6, 17, %g6
- jmpl %g1 + 0x4, %g0
- and %g6, 0x3ff, %g6
- nop
-
-__get_cpu_id_cheetah_jbus:
- ldxa [%g0] ASI_JBUS_CONFIG, %g6
- srlx %g6, 17, %g6
- jmpl %g1 + 0x4, %g0
- and %g6, 0x1f, %g6
- nop
-
-__get_cpu_id_starfire:
- sethi %hi(0x1fff40000d0 >> 9), %g6
- sllx %g6, 9, %g6
- or %g6, 0xd0, %g6
- jmpl %g1 + 0x4, %g0
- lduwa [%g6] ASI_PHYS_BYPASS_EC_E, %g6
-
- .globl per_cpu_patch
-per_cpu_patch:
- sethi %hi(this_is_starfire), %o0
- lduw [%o0 + %lo(this_is_starfire)], %o1
- sethi %hi(__get_cpu_id_starfire), %o0
- brnz,pn %o1, 10f
- or %o0, %lo(__get_cpu_id_starfire), %o0
- sethi %hi(tlb_type), %o0
- lduw [%o0 + %lo(tlb_type)], %o1
- brz,pt %o1, 11f
- nop
- rdpr %ver, %o0
- srlx %o0, 32, %o0
- sethi %hi(0x003e0016), %o1
- or %o1, %lo(0x003e0016), %o1
- cmp %o0, %o1
- sethi %hi(__get_cpu_id_cheetah_jbus), %o0
- be,pn %icc, 10f
- or %o0, %lo(__get_cpu_id_cheetah_jbus), %o0
- sethi %hi(__get_cpu_id_cheetah_safari), %o0
- or %o0, %lo(__get_cpu_id_cheetah_safari), %o0
-10:
- sethi %hi(__get_cpu_id), %o1
- or %o1, %lo(__get_cpu_id), %o1
- lduw [%o0 + 0x00], %o2
- stw %o2, [%o1 + 0x00]
- flush %o1 + 0x00
- lduw [%o0 + 0x04], %o2
- stw %o2, [%o1 + 0x04]
- flush %o1 + 0x04
- lduw [%o0 + 0x08], %o2
- stw %o2, [%o1 + 0x08]
- flush %o1 + 0x08
- lduw [%o0 + 0x0c], %o2
- stw %o2, [%o1 + 0x0c]
- flush %o1 + 0x0c
- lduw [%o0 + 0x10], %o2
- stw %o2, [%o1 + 0x10]
- flush %o1 + 0x10
-11:
+#ifdef CONFIG_SMP
+ .globl hard_smp_processor_id
+hard_smp_processor_id:
+ __GET_CPUID(%o0)
retl
nop
+#endif
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