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Commit f6eb7d7f authored by Jeremy Kerr's avatar Jeremy Kerr Committed by Arnd Bergmann
Browse files

[POWERPC] cell: add spu_64k_pages_available() check 



Add a function spu_64k_pages_available(), so that we can abstract the
explicity use of mmu_psize_defs() in lssca_alloc.c

Signed-off-by: default avatarJeremy Kerr <jk@ozlabs.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 4d43466d

arch/powerpc/platforms/cell/spu_base.c

+6 −0
Original line number Diff line number Diff line
@@ -126,6 +126,12 @@ void spu_associate_mm(struct spu *spu, struct mm_struct *mm) 
}

EXPORT_SYMBOL_GPL(spu_associate_mm);



int spu_64k_pages_available(void)

{

	return mmu_psize_defs[MMU_PAGE_64K].shift != 0;

}

EXPORT_SYMBOL_GPL(spu_64k_pages_available);



static int __spu_trap_invalid_dma(struct spu *spu)

{

	pr_debug("%s\n", __FUNCTION__);

arch/powerpc/platforms/cell/spufs/lscsa_alloc.c

+1 −1
Original line number Diff line number Diff line
@@ -73,7 +73,7 @@ int spu_alloc_lscsa(struct spu_state *csa) 
	int		i, j, n_4k;



	/* Check availability of 64K pages */

	if (mmu_psize_defs[MMU_PAGE_64K].shift == 0)

	if (!spu_64k_pages_available())

		goto fail;



	csa->use_big_pages = 1;

include/asm-powerpc/spu.h

+1 −0
Original line number Diff line number Diff line
@@ -214,6 +214,7 @@ static inline void crash_register_spus(struct list_head *list) 


extern void spu_invalidate_slbs(struct spu *spu);

extern void spu_associate_mm(struct spu *spu, struct mm_struct *mm);

int spu_64k_pages_available(void);



/* Calls from the memory management to the SPU */

struct mm_struct;