lkml.org 
[lkml]   [2021]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
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@linutronix.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.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) \
\
 
 \ /
  Last update: 2021-01-12 18:07    [W:1.711 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site