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authorMike Rapoport <rppt@linux.ibm.com>2020-06-05 02:46:35 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-05 05:06:21 +0300
commit9f4e70379f609d3bcc9d67eafecda75a495ffb4b (patch)
tree292076ed439dc197a0129bcae8d9d0bde64533ee /arch/nios2/include
parentc03ab9e32a2c4fadbb65a07e88fbb4a25f9ab9d6 (diff)
downloadlinux-9f4e70379f609d3bcc9d67eafecda75a495ffb4b.tar.xz
nios2: add support for folded p4d page tables
Implement primitives necessary for the 4th level folding, add walks of p4d level where appropriate and remove usage of __ARCH_USE_5LEVEL_HACK. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: James Morse <james.morse@arm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: Julien Thierry <julien.thierry.kdev@gmail.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200414153455.21744-7-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/nios2/include')
-rw-r--r--arch/nios2/include/asm/pgtable.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h
index f98b7f4519ba..47a1a3ea5734 100644
--- a/arch/nios2/include/asm/pgtable.h
+++ b/arch/nios2/include/asm/pgtable.h
@@ -22,7 +22,6 @@
#include <asm/tlbflush.h>
#include <asm/pgtable-bits.h>
-#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#define FIRST_USER_ADDRESS 0UL
@@ -100,7 +99,7 @@ extern pte_t invalid_pte_table[PAGE_SIZE/sizeof(pte_t)];
*/
static inline void set_pmd(pmd_t *pmdptr, pmd_t pmdval)
{
- pmdptr->pud.pgd.pgd = pmdval.pud.pgd.pgd;
+ *pmdptr = pmdval;
}
/* to find an entry in a page-table-directory */