Buildresult: powerpc-fixes/40x/walnut_defconfig/powerpc-gcc5 built on Feb 9 2020, 21:12

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Status:	OK
Date/Time:	Feb 9 2020, 21:12
Duration:	0:00:40.692585
Builder:	ka3
Revision:	powerpc/hugetlb: Fix 8M hugepages on 8xx (`5b82a04d57b60f48dc7f73763941a6542ad1cf16)`
Target:	powerpc-fixes/40x/walnut_defconfig/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	40x/walnut_defconfig (download)
Log:	Download original Possible warnings (1) arch/powerpc/kernel/head_40x.S:804: Warning: invalid register expression Full Log # git rev-parse -q --verify 5b82a04d57b60f48dc7f73763941a6542ad1cf16^{commit} 5b82a04d57b60f48dc7f73763941a6542ad1cf16 already have revision, skipping fetch # git checkout -q -f -B kisskb 5b82a04d57b60f48dc7f73763941a6542ad1cf16 # git clean -qxdf # < git log -1 # commit 5b82a04d57b60f48dc7f73763941a6542ad1cf16 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Thu Feb 6 13:50:29 2020 +0000 # # powerpc/hugetlb: Fix 8M hugepages on 8xx # # Commit 55c8fc3f4930 ("powerpc/8xx: reintroduce 16K pages with HW # assistance") redefined pte_t as a struct of 4 pte_basic_t, because # in 16K pages mode there are four identical entries in the page table. # But hugepd entries for 8k pages require only one entrie of size # pte_basic_t. So there is no point in creating a cache for 4 entries # page tables. # # Also, with HW assistance the entries must be 4k aligned, the 8xx # drops the last 12 bits. Redefine HUGEPD_SHIFT_MASK to mask them out. # # Calculate PTE_T_ORDER using the size of pte_basic_t instead of pte_t. # # In 16k mode, define a specific set_huge_pte_at() function which writes # the pte in a single entry instead of using set_pte_at() which writes # 4 identical entries. Define set_pte_filter() inline otherwise GCC # doesn't inline it anymore because it is now used twice, and that gives # a pretty suboptimal code because of pte_t being a struct of 4 entries. # This function is also used for 512k pages which only require one entry # as well allthough replicating it four times is harmless as 512k pages # entries are spread every 128 bytes in the table. # # Fixes: 22569b881d37 ("powerpc/8xx: Enable 8M hugepage support with HW assistance") # Cc: stable@vger.kernel.org # v5.0+ # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/e744db1529271d11a3fdcdf641617846907b6ffd.1580997012.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 5b82a04d57b60f48dc7f73763941a6542ad1cf16 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 40x/walnut_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages: /kisskb/src/arch/powerpc/kernel/head_40x.S:804: Warning: invalid register expression INFO: Uncompressed kernel (size 0x50869c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Completed OK # rm -rf /kisskb/build/powerpc-fixes_40x_walnut_defconfig_powerpc-gcc5 # Build took: 0:00:40.692585

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