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powerpc/64e: Simplify address calculation in secondary hold loop

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As the earlier comment explains, __secondary_hold_spinloop does not have
to be accessed at its virtual address, slightly simplifying code.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230203113858.1152093-4-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin
2023-02-03 21:38:58 +10:00
committed by Michael Ellerman
parent 58f24eea52
commit ffc8e90dec
1 changed files with 1 additions and 5 deletions
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arch/powerpc/kernel/head_64.S
+1 -5
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@@ -160,12 +160,8 @@ __secondary_hold:
std r24,(ABS_ADDR(__secondary_hold_acknowledge, first_256B))(0)
sync
li r26,0
#ifdef CONFIG_PPC_BOOK3E_64
tovirt(r26,r26)
#endif
/* All secondary cpus wait here until told to start. */
100: ld r12,(ABS_ADDR(__secondary_hold_spinloop, first_256B))(r26)
100: ld r12,(ABS_ADDR(__secondary_hold_spinloop, first_256B))(0)
cmpdi 0,r12,0
beq 100b