Commit 78502582 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Linus Torvalds
Browse files

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.

Link: https://lkml.kernel.org/r/20210112170411.281464308@linutronix.de


Fixes: 47da42b2 ("powerpc/mm/highmem: Switch to generic kmap atomic")
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8c0d5d78

arch/powerpc/include/asm/highmem.h

+2 −0
Original line number Diff line number Diff line
@@ -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)	\