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powerpc/smp: Use code patching to restore reset vector 

Instead of hardcoding reset vector restore, use patch_instruction()

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2018-11-09 17:33:32 +00:00 committed by Michael Ellerman
parent 6c16816b91
commit 8a01960fb5
2 changed files with 2 additions and 4 deletions
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3
arch/powerpc/platforms/86xx/mpc86xx_smp.c
View File

@ -86,8 +86,7 @@ smp_86xx_kick_cpu(int nr)
mdelay(1);
/* Restore the exception vector */
*vector = save_vector;
flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
patch_instruction(vector, save_vector);
local_irq_restore(flags);

3
arch/powerpc/platforms/powermac/smp.c
View File

@ -832,8 +832,7 @@ static int smp_core99_kick_cpu(int nr)
mdelay(1);
/* Restore our exception vector */
*vector = save_vector;
flush_icache_range((unsigned long) vector, (unsigned long) vector + 4);
patch_instruction(vector, save_vector);
local_irq_restore(flags);
if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu done", 0x347);