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Commit 2bd40827 authored by RongQing.Li's avatar RongQing.Li Committed by Ralf Baechle
Browse files

MIPS: CMP/SMTC: Fix tc_id calculation 



Currently the tc_id code is:

  (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;

After processing this becomes:

  (read_c0_tcbind() >> 21) & ((0xff) << 21)

But it should be:

  (read_c0_tcbind() & ((0xff)<< 21)) >> 21

Signed-off-by: default avatarRongQing.Li <roy.qing.li@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4077/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent fea7a08a

arch/mips/kernel/smp-cmp.c

+1 −1
Original line number Diff line number Diff line
@@ -102,7 +102,7 @@ static void cmp_init_secondary(void) 
	c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE;

#endif

#ifdef CONFIG_MIPS_MT_SMTC

	c->tc_id  = (read_c0_tcbind() >> TCBIND_CURTC_SHIFT) & TCBIND_CURTC;

	c->tc_id  = (read_c0_tcbind() & TCBIND_CURTC) >> TCBIND_CURTC_SHIFT;

#endif

}