Messages in this thread | | | From | "Aneesh Kumar K.V" <> | Subject | Re: [PATCH v4 03/16] powerpc/cell: Make spu_flush_all_slbs() generic | Date | Thu, 09 Oct 2014 20:34:44 +0530 |
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Michael Neuling <mikey@neuling.org> writes:
> From: Ian Munsie <imunsie@au1.ibm.com> > > This moves spu_flush_all_slbs() into a generic call copro_flush_all_slbs(). > > This will be useful when we add cxl which also needs a similar SLB flush call. >
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> > Signed-off-by: Michael Neuling <mikey@neuling.org> > --- > arch/powerpc/include/asm/copro.h | 6 ++++++ > arch/powerpc/mm/copro_fault.c | 9 +++++++++ > arch/powerpc/mm/hash_utils_64.c | 10 +++------- > arch/powerpc/mm/slice.c | 10 +++------- > 4 files changed, 21 insertions(+), 14 deletions(-) > > diff --git a/arch/powerpc/include/asm/copro.h b/arch/powerpc/include/asm/copro.h > index b0e6a18..ce216df 100644 > --- a/arch/powerpc/include/asm/copro.h > +++ b/arch/powerpc/include/asm/copro.h > @@ -20,4 +20,10 @@ int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea, > > int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb); > > + > +#ifdef CONFIG_PPC_COPRO_BASE > +void copro_flush_all_slbs(struct mm_struct *mm); > +#else > +static inline void copro_flush_all_slbs(struct mm_struct *mm) {} > +#endif > #endif /* _ASM_POWERPC_COPRO_H */ > diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c > index a15a23e..f2aa5a8 100644 > --- a/arch/powerpc/mm/copro_fault.c > +++ b/arch/powerpc/mm/copro_fault.c > @@ -25,6 +25,7 @@ > #include <linux/export.h> > #include <asm/reg.h> > #include <asm/copro.h> > +#include <asm/spu.h> > > /* > * This ought to be kept in sync with the powerpc specific do_page_fault > @@ -136,3 +137,11 @@ int copro_calculate_slb(struct mm_struct *mm, u64 ea, struct copro_slb *slb) > return 0; > } > EXPORT_SYMBOL_GPL(copro_calculate_slb); > + > +void copro_flush_all_slbs(struct mm_struct *mm) > +{ > +#ifdef CONFIG_SPU_BASE > + spu_flush_all_slbs(mm); > +#endif > +} > +EXPORT_SYMBOL_GPL(copro_flush_all_slbs); > diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c > index daee7f4..5c0738d 100644 > --- a/arch/powerpc/mm/hash_utils_64.c > +++ b/arch/powerpc/mm/hash_utils_64.c > @@ -51,7 +51,7 @@ > #include <asm/cacheflush.h> > #include <asm/cputable.h> > #include <asm/sections.h> > -#include <asm/spu.h> > +#include <asm/copro.h> > #include <asm/udbg.h> > #include <asm/code-patching.h> > #include <asm/fadump.h> > @@ -901,9 +901,7 @@ void demote_segment_4k(struct mm_struct *mm, unsigned long addr) > if (get_slice_psize(mm, addr) == MMU_PAGE_4K) > return; > slice_set_range_psize(mm, addr, 1, MMU_PAGE_4K); > -#ifdef CONFIG_SPU_BASE > - spu_flush_all_slbs(mm); > -#endif > + copro_flush_all_slbs(mm); > if (get_paca_psize(addr) != MMU_PAGE_4K) { > get_paca()->context = mm->context; > slb_flush_and_rebolt(); > @@ -1141,9 +1139,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap) > "to 4kB pages because of " > "non-cacheable mapping\n"); > psize = mmu_vmalloc_psize = MMU_PAGE_4K; > -#ifdef CONFIG_SPU_BASE > - spu_flush_all_slbs(mm); > -#endif > + copro_flush_all_slbs(mm); > } > } > > diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c > index b0c75cc..a81791c 100644 > --- a/arch/powerpc/mm/slice.c > +++ b/arch/powerpc/mm/slice.c > @@ -32,7 +32,7 @@ > #include <linux/export.h> > #include <asm/mman.h> > #include <asm/mmu.h> > -#include <asm/spu.h> > +#include <asm/copro.h> > > /* some sanity checks */ > #if (PGTABLE_RANGE >> 43) > SLICE_MASK_SIZE > @@ -232,9 +232,7 @@ static void slice_convert(struct mm_struct *mm, struct slice_mask mask, int psiz > > spin_unlock_irqrestore(&slice_convert_lock, flags); > > -#ifdef CONFIG_SPU_BASE > - spu_flush_all_slbs(mm); > -#endif > + copro_flush_all_slbs(mm); > } > > /* > @@ -671,9 +669,7 @@ void slice_set_psize(struct mm_struct *mm, unsigned long address, > > spin_unlock_irqrestore(&slice_convert_lock, flags); > > -#ifdef CONFIG_SPU_BASE > - spu_flush_all_slbs(mm); > -#endif > + copro_flush_all_slbs(mm); > } > > void slice_set_range_psize(struct mm_struct *mm, unsigned long start, > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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