Hi Jiaxun, First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 commit: b13812ddea615b6507beef24f76540c0c1143c5c MIPS: Loongson2ef: Disable Loongson MMI instructions date: 4 months ago config: mips-randconfig-r013-20210125 (attached as .config) compiler: mips64el-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b13812ddea615b6507beef24f76540c0c1143c5c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b13812ddea615b6507beef24f76540c0c1143c5c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): arch/mips/pci/ops-loongson2.c: In function 'loongson_pcibios_config_access': >> arch/mips/pci/ops-loongson2.c:39:6: warning: variable 'dummy' set but not >> used [-Wunused-but-set-variable] 39 | u32 dummy; | ^~~~~ -- >> arch/mips/loongson2ef/common/mem.c:54:5: warning: no previous prototype for >> '__uncached_access' [-Wmissing-prototypes] 54 | int __uncached_access(struct file *file, unsigned long addr) | ^~~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/machtype.c:34:20: warning: no previous >> prototype for 'mach_prom_init_machtype' [-Wmissing-prototypes] 34 | void __weak __init mach_prom_init_machtype(void) | ^~~~~~~~~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/lemote-2f/machtype.c:10:13: warning: no previous >> prototype for 'mach_prom_init_machtype' [-Wmissing-prototypes] 10 | void __init mach_prom_init_machtype(void) | ^~~~~~~~~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/cs5536/cs5536_ide.c:15:6: warning: no previous >> prototype for 'pci_ide_write_reg' [-Wmissing-prototypes] 15 | void pci_ide_write_reg(int reg, u32 value) | ^~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_ide.c:96:5: warning: no previous >> prototype for 'pci_ide_read_reg' [-Wmissing-prototypes] 96 | u32 pci_ide_read_reg(int reg) | ^~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/cs5536/cs5536_acc.c:15:6: warning: no previous >> prototype for 'pci_acc_write_reg' [-Wmissing-prototypes] 15 | void pci_acc_write_reg(int reg, u32 value) | ^~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_acc.c:62:5: warning: no previous >> prototype for 'pci_acc_read_reg' [-Wmissing-prototypes] 62 | u32 pci_acc_read_reg(int reg) | ^~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/cs5536/cs5536_ohci.c:15:6: warning: no previous >> prototype for 'pci_ohci_write_reg' [-Wmissing-prototypes] 15 | void pci_ohci_write_reg(int reg, u32 value) | ^~~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_ohci.c:70:5: warning: no previous >> prototype for 'pci_ohci_read_reg' [-Wmissing-prototypes] 70 | u32 pci_ohci_read_reg(int reg) | ^~~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/cs5536/cs5536_isa.c:84:6: warning: no previous >> prototype for 'pci_isa_write_bar' [-Wmissing-prototypes] 84 | void pci_isa_write_bar(int n, u32 value) | ^~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_isa.c:110:5: warning: no previous >> prototype for 'pci_isa_read_bar' [-Wmissing-prototypes] 110 | u32 pci_isa_read_bar(int n) | ^~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_isa.c:134:6: warning: no previous >> prototype for 'pci_isa_write_reg' [-Wmissing-prototypes] 134 | void pci_isa_write_reg(int reg, u32 value) | ^~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_isa.c:228:5: warning: no previous >> prototype for 'pci_isa_read_reg' [-Wmissing-prototypes] 228 | u32 pci_isa_read_reg(int reg) | ^~~~~~~~~~~~~~~~ -- >> arch/mips/loongson2ef/common/cs5536/cs5536_ehci.c:15:6: warning: no previous >> prototype for 'pci_ehci_write_reg' [-Wmissing-prototypes] 15 | void pci_ehci_write_reg(int reg, u32 value) | ^~~~~~~~~~~~~~~~~~ >> arch/mips/loongson2ef/common/cs5536/cs5536_ehci.c:75:5: warning: no previous >> prototype for 'pci_ehci_read_reg' [-Wmissing-prototypes] 75 | u32 pci_ehci_read_reg(int reg) | ^~~~~~~~~~~~~~~~~ vim +/dummy +39 arch/mips/pci/ops-loongson2.c e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 30 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 31 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 32 static int loongson_pcibios_config_access(unsigned char access_type, e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 33 struct pci_bus *bus, e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 34 unsigned int devfn, int where, e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 35 u32 *data) e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 36 { e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 37 u32 busnum = bus->number; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 38 u32 addr, type; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 @39 u32 dummy; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 40 void *addrp; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 41 int device = PCI_SLOT(devfn); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 42 int function = PCI_FUNC(devfn); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 43 int reg = where & ~3; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 44 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 45 if (busnum == 0) { 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 46 /* board-specific part,currently,only fuloong2f,yeeloong2f 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 47 * use CS5536, fuloong2e use via686b, gdium has no 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 48 * south bridge 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 49 */ 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 50 #ifdef CONFIG_CS5536 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 51 /* cs5536_pci_conf_read4/write4() will call _rdmsr/_wrmsr() to 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 52 * access the regsters PCI_MSR_ADDR, PCI_MSR_DATA_LO, 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 53 * PCI_MSR_DATA_HI, which is bigger than PCI_MSR_CTRL, so, it 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 54 * will not go this branch, but the others. so, no calling dead 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 55 * loop here. 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 56 */ 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 57 if ((PCI_IDSEL_CS5536 == device) && (reg < PCI_MSR_CTRL)) { 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 58 switch (access_type) { 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 59 case PCI_ACCESS_READ: 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 60 *data = cs5536_pci_conf_read4(function, reg); 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 61 break; 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 62 case PCI_ACCESS_WRITE: 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 63 cs5536_pci_conf_write4(function, reg, *data); 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 64 break; 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 65 } 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 66 return 0; 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 67 } 1032bce3ef81cb31 arch/mips/pci/ops-loongson2.c Wu Zhangjin 2009-11-10 68 #endif e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 69 /* Type 0 configuration for onboard PCI bus */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 70 if (device > MAX_DEV_NUM) e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 71 return -1; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 72 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 73 addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 74 type = 0; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 75 } else { e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 76 /* Type 1 configuration for offboard PCI bus */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 77 addr = (busnum << 16) | (device << 11) | (function << 8) | reg; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 78 type = 0x10000; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 79 } e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 80 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 81 /* Clear aborts */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 82 LOONGSON_PCICMD |= LOONGSON_PCICMD_MABORT_CLR | \ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 83 LOONGSON_PCICMD_MTABORT_CLR; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 84 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 85 LOONGSON_PCIMAP_CFG = (addr >> 16) | type; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 86 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 87 /* Flush Bonito register block */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 88 dummy = LOONGSON_PCIMAP_CFG; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 89 mmiowb(); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 90 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 91 addrp = CFG_SPACE_REG(addr & 0xffff); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 92 if (access_type == PCI_ACCESS_WRITE) e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 93 writel(cpu_to_le32(*data), addrp); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 94 else e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 95 *data = le32_to_cpu(readl(addrp)); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 96 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 97 /* Detect Master/Target abort */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 98 if (LOONGSON_PCICMD & (LOONGSON_PCICMD_MABORT_CLR | e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 99 LOONGSON_PCICMD_MTABORT_CLR)) { e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 100 /* Error occurred */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 101 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 102 /* Clear bits */ e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 103 LOONGSON_PCICMD |= (LOONGSON_PCICMD_MABORT_CLR | e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 104 LOONGSON_PCICMD_MTABORT_CLR); e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 105 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 106 return -1; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 107 } e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 108 e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 109 return 0; e2fee5723bbda4a0 arch/mips/pci/ops-fuloong2e.c Wu Zhangjin 2009-10-16 110 :::::: The code at line 39 was first introduced by commit :::::: e2fee5723bbda4a05c86f16a9d0f889a2c4ecede MIPS: Bonito64: Make Loongson independent from Bonito64 code. :::::: TO: Wu Zhangjin <[email protected]> :::::: CC: Ralf Baechle <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
