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Message-Id: <20210112170411.281464308@linutronix.de>
Date: Tue, 12 Jan 2021 18:01:40 +0100
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
Peter Zijlstra <peterz@...radead.org>,
Michael Ellerman <mpe@...erman.id.au>,
linuxppc-dev@...ts.ozlabs.org,
Andreas Larsson <andreas@...sler.com>,
"David S. Miller" <davem@...emloft.net>,
sparclinux@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Subject: [patch 4/4] powerpc/mm/highmem: Use __set_pte_at() for kmap_local()
The original PowerPC highmem mapping function used __set_pte_at() to denote
that the mapping is per CPU. This got lost with the conversion to the
generic implementation.
Override the default map function.
Fixes: 47da42b27a56 ("powerpc/mm/highmem: Switch to generic kmap atomic")
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: linuxppc-dev@...ts.ozlabs.org
---
arch/powerpc/include/asm/highmem.h | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -58,6 +58,8 @@ extern pte_t *pkmap_page_table;
#define flush_cache_kmaps() flush_cache_all()
+#define arch_kmap_local_set_pte(mm, vaddr, ptep, ptev) \
+ __set_pte_at(mm, vaddr, ptep, ptev, 1)
#define arch_kmap_local_post_map(vaddr, pteval) \
local_flush_tlb_page(NULL, vaddr)
#define arch_kmap_local_post_unmap(vaddr) \
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