Hi, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 47ef4ad2684d380dd6d596140fb79395115c3950 commit: 9da8320bb97768e35f2e64fa7642015271d672eb xtensa: add test_kc705_hifi variant date: 4 months ago config: xtensa-audio_kc705_defconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 4.9.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 9da8320bb97768e35f2e64fa7642015271d672eb # save the attached .config to linux build tree make.cross ARCH=xtensa All errors (new ones prefixed by >>): arch/xtensa/include/asm/initialize_mmu.h: Assembler messages: >> arch/xtensa/include/asm/initialize_mmu.h:55: Error: invalid register >> 'atomctl' for 'wsr' instruction -- arch/xtensa/kernel/coprocessor.S: Assembler messages: >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_ovf_sar' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_bithead' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_ts_fts_bu_bp' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_cw_sd_no' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_cbegin0' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'rur.ae_cend0' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' >> arch/xtensa/kernel/coprocessor.S:93: Error: unknown opcode or format name >> 'ae_s64.i' vim +55 arch/xtensa/include/asm/initialize_mmu.h 6cb97111 Baruch Siach 2013-12-29 39 c622b29d Max Filippov 2012-11-19 40 #ifdef __ASSEMBLY__ c622b29d Max Filippov 2012-11-19 41 c622b29d Max Filippov 2012-11-19 42 #define XTENSA_HWVERSION_RC_2009_0 230000 c622b29d Max Filippov 2012-11-19 43 c622b29d Max Filippov 2012-11-19 44 .macro initialize_mmu c622b29d Max Filippov 2012-11-19 45 c622b29d Max Filippov 2012-11-19 46 #if XCHAL_HAVE_S32C1I && (XCHAL_HW_MIN_VERSION >= XTENSA_HWVERSION_RC_2009_0) c622b29d Max Filippov 2012-11-19 47 /* c622b29d Max Filippov 2012-11-19 48 * We Have Atomic Operation Control (ATOMCTL) Register; Initialize it. c622b29d Max Filippov 2012-11-19 49 * For details see Documentation/xtensa/atomctl.txt c622b29d Max Filippov 2012-11-19 50 */ c622b29d Max Filippov 2012-11-19 51 #if XCHAL_DCACHE_IS_COHERENT c622b29d Max Filippov 2012-11-19 52 movi a3, 0x25 /* For SMP/MX -- internal for writeback, c622b29d Max Filippov 2012-11-19 53 * RCW otherwise c622b29d Max Filippov 2012-11-19 54 */ c622b29d Max Filippov 2012-11-19 @55 #else c622b29d Max Filippov 2012-11-19 56 movi a3, 0x29 /* non-MX -- Most cores use Std Memory c622b29d Max Filippov 2012-11-19 57 * Controlers which usually can't use RCW c622b29d Max Filippov 2012-11-19 58 */ c622b29d Max Filippov 2012-11-19 59 #endif c622b29d Max Filippov 2012-11-19 60 wsr a3, atomctl c622b29d Max Filippov 2012-11-19 61 #endif /* XCHAL_HAVE_S32C1I && c622b29d Max Filippov 2012-11-19 62 * (XCHAL_HW_MIN_VERSION >= XTENSA_HWVERSION_RC_2009_0) c622b29d Max Filippov 2012-11-19 63 */ :::::: The code at line 55 was first introduced by commit :::::: c622b29d1f38021411965b7e0170ab055551b257 xtensa: initialize atomctl SR :::::: TO: Max Filippov <jcmvb...@gmail.com> :::::: CC: Chris Zankel <ch...@zankel.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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