lkml.org 
[lkml]   [2019]   [Oct]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 06/12] microblaze: use pgtable-nopmd instead of 4level-fixup
    On Fri, Oct 25, 2019 at 10:24:30AM +0200, Michal Simek wrote:
    > Hi Mike,
    >
    > On 23. 10. 19 11:28, Mike Rapoport wrote:
    > > From: Mike Rapoport <rppt@linux.ibm.com>
    > >
    > > 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.
    > >
    > > Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
    > > ---
    > > arch/microblaze/include/asm/page.h | 3 ---
    > > arch/microblaze/include/asm/pgalloc.h | 16 ----------------
    > > arch/microblaze/include/asm/pgtable.h | 32 ++------------------------------
    > > arch/microblaze/kernel/signal.c | 10 +++++++---
    > > arch/microblaze/mm/init.c | 7 +++++--
    > > arch/microblaze/mm/pgtable.c | 13 +++++++++++--
    > > 6 files changed, 25 insertions(+), 56 deletions(-)
    >
    > I have take a look at this and when this is applied on the top of
    > 5.4-rc2 there is not a problem.
    > But as was reported by 0-day there is compilation issue on the top of
    > mmotm/master tree and I am able to replicate it.
    > It means there are other changes in Andrew's tree which are causing it.

    0day is still using an old tree for mmotm:

    > url: https://github.com/0day-ci/linux/commits/Mike-Rapoport/mm-remove-__ARCH_HAS_4LEVEL_HACK/20191025-063009
    > base: git://git.cmpxchg.org/linux-mmotm.git master
    > config: microblaze-mmu_defconfig (attached as .config)

    A while ago Johannes moved the mmotm to github and the last commit in
    git.cmpxchg.org/linux-mmotm.git was in the end of August.

    [1] https://lore.kernel.org/linux-mm/20190916134327.GC29985@cmpxchg.org

    > Thanks,
    > Michal
    >
    > --
    > Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
    > w: www.monstr.eu p: +42-0-721842854
    > Maintainer of Linux kernel - Xilinx Microblaze
    > Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
    > U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs
    >

    --
    Sincerely yours,
    Mike.

    \
     
     \ /
      Last update: 2019-10-25 22:34    [W:6.292 / U:0.056 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site