Hi Nicholas, Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next] [also build test ERROR on v4.16-rc2 next-20180221] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/powerpc-cpu-feature-and-kernel-build-stuff/20180221-132025 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-ppc64e_defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All errors (new ones prefixed by >>): arch/powerpc/lib/copypage_power7.S: Assembler messages: >> arch/powerpc/lib/copypage_power7.S:46: Error: junk at end of line: `0b01000' >> arch/powerpc/lib/copypage_power7.S:47: Error: junk at end of line: `0b01010' arch/powerpc/lib/copypage_power7.S:49: Error: junk at end of line: `0b01000' arch/powerpc/lib/copypage_power7.S:50: Error: junk at end of line: `0b01010' arch/powerpc/lib/copypage_power7.S:52: Error: junk at end of line: `0b01010' vim +46 arch/powerpc/lib/copypage_power7.S fde69282 Anton Blanchard 2012-05-29 22 fde69282 Anton Blanchard 2012-05-29 23 _GLOBAL(copypage_power7) fde69282 Anton Blanchard 2012-05-29 24 /* fde69282 Anton Blanchard 2012-05-29 25 * We prefetch both the source and destination using enhanced touch fde69282 Anton Blanchard 2012-05-29 26 * instructions. We use a stream ID of 0 for the load side and fde69282 Anton Blanchard 2012-05-29 27 * 1 for the store side. Since source and destination are page fde69282 Anton Blanchard 2012-05-29 28 * aligned we don't need to clear the bottom 7 bits of either fde69282 Anton Blanchard 2012-05-29 29 * address. fde69282 Anton Blanchard 2012-05-29 30 */ 280a5ba2 Michael Neuling 2013-05-29 31 ori r9,r3,1 /* stream=1 => to */ fde69282 Anton Blanchard 2012-05-29 32 fde69282 Anton Blanchard 2012-05-29 33 #ifdef CONFIG_PPC_64K_PAGES 280a5ba2 Michael Neuling 2013-05-29 34 lis r7,0x0E01 /* depth=7 280a5ba2 Michael Neuling 2013-05-29 35 * units/cachelines=512 */ fde69282 Anton Blanchard 2012-05-29 36 #else fde69282 Anton Blanchard 2012-05-29 37 lis r7,0x0E00 /* depth=7 */ 280a5ba2 Michael Neuling 2013-05-29 38 ori r7,r7,0x1000 /* units/cachelines=32 */ fde69282 Anton Blanchard 2012-05-29 39 #endif fde69282 Anton Blanchard 2012-05-29 40 ori r10,r7,1 /* stream=1 */ fde69282 Anton Blanchard 2012-05-29 41 fde69282 Anton Blanchard 2012-05-29 42 lis r8,0x8000 /* GO=1 */ fde69282 Anton Blanchard 2012-05-29 43 clrldi r8,r8,32 fde69282 Anton Blanchard 2012-05-29 44 280a5ba2 Michael Neuling 2013-05-29 45 /* setup read stream 0 */ 8a583c0a Andreas Schwab 2017-08-05 @46 dcbt 0,r4,0b01000 /* addr from */ 8a583c0a Andreas Schwab 2017-08-05 @47 dcbt 0,r7,0b01010 /* length and depth from */ 280a5ba2 Michael Neuling 2013-05-29 48 /* setup write stream 1 */ 8a583c0a Andreas Schwab 2017-08-05 49 dcbtst 0,r9,0b01000 /* addr to */ 8a583c0a Andreas Schwab 2017-08-05 50 dcbtst 0,r10,0b01010 /* length and depth to */ fde69282 Anton Blanchard 2012-05-29 51 eieio 8a583c0a Andreas Schwab 2017-08-05 52 dcbt 0,r8,0b01010 /* all streams GO */ fde69282 Anton Blanchard 2012-05-29 53 :::::: The code at line 46 was first introduced by commit :::::: 8a583c0a8d316d8ea52ea78491174ab1a3e9ef9d powerpc: Fix invalid use of register expressions :::::: TO: Andreas Schwab <sch...@linux-m68k.org> :::::: CC: Michael Ellerman <m...@ellerman.id.au> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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