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authorMike Rapoport <rppt@linux.ibm.com>2019-12-05 03:54:03 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-05 06:44:15 +0300
commited48e1f812b585e2af5dee6e08712c64d75978e2 (patch)
tree22f5fb5396583b3f5ba642703eb6af5c671118d7 /arch/microblaze/mm/init.c
parent60e50f34b13e9e40763be12aa55f2144d8da514c (diff)
downloadlinux-ed48e1f812b585e2af5dee6e08712c64d75978e2.tar.xz
microblaze: use pgtable-nopmd instead of 4level-fixup
microblaze has only two-level page tables and can use pgtable-nopmd and folding of the upper layers. Replace usage of include/asm-generic/4level-fixup.h and explicit definition of __PAGETABLE_PMD_FOLDED in microblaze with include/asm-generic/pgtable-nopmd.h and adjust page table manipulation macros and functions accordingly. Link: http://lkml.kernel.org/r/1572938135-31886-7-git-send-email-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Anatoly Pugachev <matorola@gmail.com> Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Mark Salter <msalter@redhat.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Peter Rosin <peda@axentia.se> Cc: Richard Weinberger <richard@nod.at> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Russell King <linux@armlinux.org.uk> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Sam Creasey <sammy@sammy.net> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/microblaze/mm/init.c')
-rw-r--r--arch/microblaze/mm/init.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index a015a951c8b7..050fc621c920 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -53,8 +53,11 @@ EXPORT_SYMBOL(kmap_prot);
static inline pte_t *virt_to_kpte(unsigned long vaddr)
{
- return pte_offset_kernel(pmd_offset(pgd_offset_k(vaddr),
- vaddr), vaddr);
+ pgd_t *pgd = pgd_offset_k(vaddr);
+ p4d_t *p4d = p4d_offset(pgd, vaddr);
+ pud_t *pud = pud_offset(p4d, vaddr);
+
+ return pte_offset_kernel(pmd_offset(pud, vaddr), vaddr);
}
static void __init highmem_init(void)