From f6eb7d7ffef3e2fa40b0161c30486cb87203758d Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 5 Dec 2007 13:49:31 +1100 Subject: [PATCH] [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: Jeremy Kerr Signed-off-by: Arnd Bergmann --- arch/powerpc/platforms/cell/spu_base.c | 6 ++++++ arch/powerpc/platforms/cell/spufs/lscsa_alloc.c | 2 +- include/asm-powerpc/spu.h | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 8398af6..95001cd 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -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__); diff --git a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c index f4b3c05..d606e57 100644 --- a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c +++ b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c @@ -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; diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h index 844c7cd..3308ed4 100644 --- a/include/asm-powerpc/spu.h +++ b/include/asm-powerpc/spu.h @@ -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; -- 2.7.4