forked from Minki/linux
79db795833
%g4 and %g5 are fixed registers used by the kernel for the thread
pointer and the per-cpu offset. Use %o4 and %g7 instead.
Diagnosis by Anthony Yznaga.
Fixes: 1b4af13ff2 ("sparc64: Add __multi3 for gcc 7.x and later.")
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
36 lines
678 B
ArmAsm
36 lines
678 B
ArmAsm
#include <linux/linkage.h>
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#include <asm/export.h>
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.text
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.align 4
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ENTRY(__multi3) /* %o0 = u, %o1 = v */
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mov %o1, %g1
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srl %o3, 0, %o4
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mulx %o4, %g1, %o1
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srlx %g1, 0x20, %g3
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mulx %g3, %o4, %g7
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sllx %g7, 0x20, %o5
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srl %g1, 0, %o4
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sub %o1, %o5, %o5
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srlx %o5, 0x20, %o5
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addcc %g7, %o5, %g7
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srlx %o3, 0x20, %o5
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mulx %o4, %o5, %o4
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mulx %g3, %o5, %o5
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sethi %hi(0x80000000), %g3
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addcc %g7, %o4, %g7
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srlx %g7, 0x20, %g7
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add %g3, %g3, %g3
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movcc %xcc, %g0, %g3
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addcc %o5, %g7, %o5
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sllx %o4, 0x20, %o4
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add %o1, %o4, %o1
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add %o5, %g3, %g2
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mulx %g1, %o2, %g1
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add %g1, %g2, %g1
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mulx %o0, %o3, %o0
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retl
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add %g1, %o0, %o0
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ENDPROC(__multi3)
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EXPORT_SYMBOL(__multi3)
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