From: Christophe Leroy <christophe.le...@csgroup.eu>

[ Upstream commit fdc6edbb31fba76fd25d7bd016b675a92908d81e ]

Commit ("03fd42d458fb powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when
page size is 256k") reworked the setup of the early debug area and
mistakenly replaced 128 * 1024 by SZ_128.

Change to SZ_128K to restore the original 128 kbytes size of the area.

Fixes: 03fd42d458fb ("powerpc/fixmap: Fix FIX_EARLY_DEBUG_BASE when page size 
is 256k")
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Link: 
https://lore.kernel.org/r/996184974d674ff984643778cf1cdd7fe58cc065.1597644194.git.christophe.le...@csgroup.eu
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 arch/powerpc/include/asm/fixmap.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/fixmap.h 
b/arch/powerpc/include/asm/fixmap.h
index 925cf89cbf4ba..6bfc87915d5db 100644
--- a/arch/powerpc/include/asm/fixmap.h
+++ b/arch/powerpc/include/asm/fixmap.h
@@ -52,7 +52,7 @@ enum fixed_addresses {
        FIX_HOLE,
        /* reserve the top 128K for early debugging purposes */
        FIX_EARLY_DEBUG_TOP = FIX_HOLE,
-       FIX_EARLY_DEBUG_BASE = FIX_EARLY_DEBUG_TOP+(ALIGN(SZ_128, 
PAGE_SIZE)/PAGE_SIZE)-1,
+       FIX_EARLY_DEBUG_BASE = FIX_EARLY_DEBUG_TOP+(ALIGN(SZ_128K, 
PAGE_SIZE)/PAGE_SIZE)-1,
 #ifdef CONFIG_HIGHMEM
        FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
        FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
-- 
2.25.1



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