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| Started by | Christophe Leroy <christophe.leroy@c-s.fr> |
|---|---|
| First post | 2015-09-22 19:00 +0200 |
| Last post | 2015-09-29 01:50 +0200 |
| Articles | 2 — 2 participants |
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[PATCH v2 06/25] powerpc32: iounmap() cannot vunmap() area mapped by TLBCAMs either Christophe Leroy <christophe.leroy@c-s.fr> - 2015-09-22 19:00 +0200
Re: [PATCH v2 06/25] powerpc32: iounmap() cannot vunmap() area mapped by TLBCAMs either Scott Wood <scottwood@freescale.com> - 2015-09-29 01:50 +0200
| From | Christophe Leroy <christophe.leroy@c-s.fr> |
|---|---|
| Date | 2015-09-22 19:00 +0200 |
| Subject | [PATCH v2 06/25] powerpc32: iounmap() cannot vunmap() area mapped by TLBCAMs either |
| Message-ID | <qbz5b-2KT-73@gated-at.bofh.it> |
iounmap() cannot vunmap() area mapped by TLBCAMs either Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- No change in v2 arch/powerpc/mm/pgtable_32.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index 7692d1b..03a073a 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -278,7 +278,9 @@ void iounmap(volatile void __iomem *addr) * If mapped by BATs then there is nothing to do. * Calling vfree() generates a benign warning. */ - if (v_mapped_by_bats((unsigned long)addr)) return; + if (v_mapped_by_bats((unsigned long)addr) || + v_mapped_by_tlbcam((unsigned long)addr)) + return; if (addr > high_memory && (unsigned long) addr < ioremap_bot) vunmap((void *) (PAGE_MASK & (unsigned long)addr)); -- 2.1.0 -- 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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| From | Scott Wood <scottwood@freescale.com> |
|---|---|
| Date | 2015-09-29 01:50 +0200 |
| Subject | Re: [PATCH v2 06/25] powerpc32: iounmap() cannot vunmap() area mapped by TLBCAMs either |
| Message-ID | <qdQlb-66J-3@gated-at.bofh.it> |
| In reply to | #1230489 |
On Tue, Sep 22, 2015 at 06:50:40PM +0200, Christophe Leroy wrote: > iounmap() cannot vunmap() area mapped by TLBCAMs either > > Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> > --- > No change in v2 > > arch/powerpc/mm/pgtable_32.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c > index 7692d1b..03a073a 100644 > --- a/arch/powerpc/mm/pgtable_32.c > +++ b/arch/powerpc/mm/pgtable_32.c > @@ -278,7 +278,9 @@ void iounmap(volatile void __iomem *addr) > * If mapped by BATs then there is nothing to do. > * Calling vfree() generates a benign warning. > */ > - if (v_mapped_by_bats((unsigned long)addr)) return; > + if (v_mapped_by_bats((unsigned long)addr) || > + v_mapped_by_tlbcam((unsigned long)addr)) > + return; This is pretty pointless given that the next patch replaces both with v_mapped_by_other(). -Scott -- 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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