linux-kernel - [PATCH 03/13] powerpc/powernv: update to new mmu

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Message-Id: <20170829235447.10050-4-jglisse@redhat.com>
Date:   Tue, 29 Aug 2017 19:54:37 -0400
From:   Jérôme Glisse <jglisse@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     Jérôme Glisse <jglisse@...hat.com>,
        linuxppc-dev@...ts.ozlabs.org,
        Alistair Popple <alistair@...ple.id.au>,
        Michael Ellerman <mpe@...erman.id.au>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrea Arcangeli <aarcange@...hat.com>
Subject: [PATCH 03/13] powerpc/powernv: update to new mmu_notifier semantic

Call to mmu_notifier_invalidate_page() are replaced by call to
mmu_notifier_invalidate_range() and thus call are bracketed by
call to mmu_notifier_invalidate_range_start()/end()

Remove now useless invalidate_page callback.

Signed-off-by: Jérôme Glisse <jglisse@...hat.com>
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: Alistair Popple <alistair@...ple.id.au>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Andrea Arcangeli <aarcange@...hat.com>
---
 arch/powerpc/platforms/powernv/npu-dma.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index b5d960d6db3d..4c7b8591f737 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -614,15 +614,6 @@ static void pnv_npu2_mn_change_pte(struct mmu_notifier *mn,
 	mmio_invalidate(npu_context, 1, address, true);
 }
 
-static void pnv_npu2_mn_invalidate_page(struct mmu_notifier *mn,
-					struct mm_struct *mm,
-					unsigned long address)
-{
-	struct npu_context *npu_context = mn_to_npu_context(mn);
-
-	mmio_invalidate(npu_context, 1, address, true);
-}
-
 static void pnv_npu2_mn_invalidate_range(struct mmu_notifier *mn,
 					struct mm_struct *mm,
 					unsigned long start, unsigned long end)
@@ -640,7 +631,6 @@ static void pnv_npu2_mn_invalidate_range(struct mmu_notifier *mn,
 static const struct mmu_notifier_ops nv_nmmu_notifier_ops = {
 	.release = pnv_npu2_mn_release,
 	.change_pte = pnv_npu2_mn_change_pte,
-	.invalidate_page = pnv_npu2_mn_invalidate_page,
 	.invalidate_range = pnv_npu2_mn_invalidate_range,
 };
 
-- 
2.13.5