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Commit b68b1d74 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/64s/radix: Do not allocate SLB shadow structures 



These are unused in radix mode.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent d5507190

arch/powerpc/kernel/paca.c

+11 −2
Original line number Diff line number Diff line
@@ -99,18 +99,27 @@ static inline void free_lppacas(void) { } 
 * If you make the number of persistent SLB entries dynamic, please also

 * update PR KVM to flush and restore them accordingly.

 */

static struct slb_shadow *slb_shadow;

static struct slb_shadow * __initdata slb_shadow;



static void __init allocate_slb_shadows(int nr_cpus, int limit)

{

	int size = PAGE_ALIGN(sizeof(struct slb_shadow) * nr_cpus);



	if (early_radix_enabled())

		return;



	slb_shadow = __va(memblock_alloc_base(size, PAGE_SIZE, limit));

	memset(slb_shadow, 0, size);

}



static struct slb_shadow * __init init_slb_shadow(int cpu)

{

	struct slb_shadow *s = &slb_shadow[cpu];

	struct slb_shadow *s;



	if (early_radix_enabled())

		return NULL;



	s = &slb_shadow[cpu];



	/*

	 * When we come through here to initialise boot_paca, the slb_shadow