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powerpc: Remove STAB code

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Old cpus didn't have a Segment Lookaside Buffer (SLB), instead they had
a Segment Table (STAB). Now that we've dropped support for those cpus,
we can remove the STAB support entirely.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman
2014-07-10 12:29:19 +10:00
committed by Benjamin Herrenschmidt
parent 468a33028e
commit 376af5947c
12 changed files with 11 additions and 522 deletions
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8
arch/powerpc/kernel/head_64.S
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@@ -618,7 +618,7 @@ __secondary_start:
addi r14,r14,THREAD_SIZE-STACK_FRAME_OVERHEAD
std r14,PACAKSAVE(r13)
/* Do early setup for that CPU (stab, slb, hash table pointer) */
/* Do early setup for that CPU (SLB and hash table pointer) */
bl early_setup_secondary
/*
@@ -771,8 +771,10 @@ start_here_multiplatform:
li r0,0
stdu r0,-STACK_FRAME_OVERHEAD(r1)
/* Do very early kernel initializations, including initial hash table,
* stab and slb setup before we turn on relocation. */
/*
* Do very early kernel initializations, including initial hash table
* and SLB setup before we turn on relocation.
*/
/* Restore parameters passed from prom_init/kexec */
mr r3,r31