+ hexagon-remove-__arch_use_5level_hack.patch added to -mm tree

From: akpm@linux-foundation.org
To: arnd@arndb.de, bcain@codeaurora.org, benh@kernel.crashing.org,
	catalin.marinas@arm.com, christophe.leroy@c-s.fr,
	dalias@libc.org, fenghua.yu@intel.com, geert+renesas@glider.be,
	gxt@pku.edu.cn, james.morse@arm.com, jonas@southpole.se,
	julien.thierry.kdev@gmail.com, ley.foon.tan@intel.com,
	linux@armlinux.org.uk, maz@kernel.org,
	mm-commits@vger.kernel.org, mpe@ellerman.id.au, paulus@samba.org,
	rppt@linux.ibm.com, shorne@gmail.com,
	stefan.kristiansson@saunalahti.fi, suzuki.poulose@arm.com,
	tony.luck@intel.com, will@kernel.org, ysato@users.sourceforge.jp
Subject: + hexagon-remove-__arch_use_5level_hack.patch added to -mm tree
Date: Sat, 29 Feb 2020 20:37:53 -0800	[thread overview]
Message-ID: <20200301043753.c7tcitDil%akpm@linux-foundation.org> (raw)


The patch titled
     Subject: hexagon: remove __ARCH_USE_5LEVEL_HACK
has been added to the -mm tree.  Its filename is
     hexagon-remove-__arch_use_5level_hack.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/hexagon-remove-__arch_use_5level_hack.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/hexagon-remove-__arch_use_5level_hack.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Mike Rapoport <rppt@linux.ibm.com>
Subject: hexagon: remove __ARCH_USE_5LEVEL_HACK

The hexagon architecture has 2 level page tables and as such most of the
page table folding is already implemented in asm-generic/pgtable-nopmd.h.

Fixup the only place in arch/hexagon to unfold the p4d level and remove
__ARCH_USE_5LEVEL_HACK.

Link: http://lkml.kernel.org/r/20200227084608.18223-4-rppt@kernel.org
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/hexagon/include/asm/fixmap.h  |    4 ++--
 arch/hexagon/include/asm/pgtable.h |    1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

--- a/arch/hexagon/include/asm/fixmap.h~hexagon-remove-__arch_use_5level_hack
+++ a/arch/hexagon/include/asm/fixmap.h
@@ -16,7 +16,7 @@
 #include <asm-generic/fixmap.h>
 
 #define kmap_get_fixmap_pte(vaddr) \
-	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), \
-				(vaddr)), (vaddr)), (vaddr))
+	pte_offset_kernel(pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), \
+				(vaddr)), (vaddr)), (vaddr)), (vaddr))
 
 #endif
--- a/arch/hexagon/include/asm/pgtable.h~hexagon-remove-__arch_use_5level_hack
+++ a/arch/hexagon/include/asm/pgtable.h
@@ -12,7 +12,6 @@
  * Page table definitions for Qualcomm Hexagon processor.
  */
 #include <asm/page.h>
-#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 /* A handy thing to have if one has the RAM. Declared in head.S */
_

Patches currently in -mm which might be from rppt@linux.ibm.com are

arm-arm64-add-support-for-folded-p4d-page-tables.patch
h8300-remove-usage-of-__arch_use_5level_hack.patch
hexagon-remove-__arch_use_5level_hack.patch
ia64-add-support-for-folded-p4d-page-tables.patch
nios2-add-support-for-folded-p4d-page-tables.patch
openrisc-add-support-for-folded-p4d-page-tables.patch
powerpc-add-support-for-folded-p4d-page-tables.patch
sh-drop-__pxd_offset-macros-that-duplicate-pxd_index-ones.patch
sh-add-support-for-folded-p4d-page-tables.patch
unicore32-remove-__arch_use_5level_hack.patch
asm-generic-remove-pgtable-nop4d-hackh.patch
mm-remove-__arch_has_5level_hack-and-include-asm-generic-5level-fixuph.patch
