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MIPS: Undefine PMD_ORDER for 32-bit builds 

During an update long ago to conform to 4-level page code, PMD_ORDER was
changed from 0 to 1, despite the fact that a PMD table is not used at
all in a 32-bit MIPS build. PMD_ORDER does not seem to be used in these
builds. Now, it matches PUD_ORDER, a nonsense #define to give a build
failure with informative error.

The older commit that had redefined PMD_ORDER was
commit c6e8b58771 ("Update MIPS to use the 4-level pagetable code
thereby getting rid of the compacrapability headers.")

Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Daniel Silsby 2019-07-15 17:40:03 -04:00 committed by Paul Burton
parent b35d265301
commit 7176b6ac18
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1 changed files with 1 additions and 1 deletions
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2
arch/mips/include/asm/pgtable-32.h
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@ -83,7 +83,7 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
#define PGD_ORDER (__PGD_ORDER >= 0 ? __PGD_ORDER : 0)
#define PUD_ORDER aieeee_attempt_to_allocate_pud
#define PMD_ORDER 1
#define PMD_ORDER aieeee_attempt_to_allocate_pmd
#define PTE_ORDER 0
#define PTRS_PER_PGD (USER_PTRS_PER_PGD * 2)