linux-kernel - [tip:x86/urgent 2/2] arch/x86/kernel/cpu/amd.c:545:3: error: '__max_die_per

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Date:   Thu, 14 Jan 2021 09:18:00 +0800
From:   kernel test robot <lkp@...el.com>
To:     Yazen Ghannam <Yazen.Ghannam@....com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Borislav Petkov <bp@...e.de>
Subject: [tip:x86/urgent 2/2] arch/x86/kernel/cpu/amd.c:545:3: error:
 '__max_die_per_package' undeclared; did you mean

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/urgent
head:   76e2fc63ca40977af893b724b00cc2f8e9ce47a4
commit: 76e2fc63ca40977af893b724b00cc2f8e9ce47a4 [2/2] x86/cpu/amd: Set __max_die_per_package on AMD
config: i386-randconfig-r015-20210113 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=76e2fc63ca40977af893b724b00cc2f8e9ce47a4
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip x86/urgent
        git checkout 76e2fc63ca40977af893b724b00cc2f8e9ce47a4
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   arch/x86/kernel/cpu/amd.c: In function 'bsp_init_amd':
>> arch/x86/kernel/cpu/amd.c:545:3: error: '__max_die_per_package' undeclared (first use in this function); did you mean 'topology_max_die_per_package'?
     545 |   __max_die_per_package = nodes_per_socket = ((ecx >> 8) & 7) + 1;
         |   ^~~~~~~~~~~~~~~~~~~~~
         |   topology_max_die_per_package
   arch/x86/kernel/cpu/amd.c:545:3: note: each undeclared identifier is reported only once for each function it appears in


vim +545 arch/x86/kernel/cpu/amd.c

   508	
   509	static void bsp_init_amd(struct cpuinfo_x86 *c)
   510	{
   511		if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) {
   512	
   513			if (c->x86 > 0x10 ||
   514			    (c->x86 == 0x10 && c->x86_model >= 0x2)) {
   515				u64 val;
   516	
   517				rdmsrl(MSR_K7_HWCR, val);
   518				if (!(val & BIT(24)))
   519					pr_warn(FW_BUG "TSC doesn't count with P0 frequency!\n");
   520			}
   521		}
   522	
   523		if (c->x86 == 0x15) {
   524			unsigned long upperbit;
   525			u32 cpuid, assoc;
   526	
   527			cpuid	 = cpuid_edx(0x80000005);
   528			assoc	 = cpuid >> 16 & 0xff;
   529			upperbit = ((cpuid >> 24) << 10) / assoc;
   530	
   531			va_align.mask	  = (upperbit - 1) & PAGE_MASK;
   532			va_align.flags    = ALIGN_VA_32 | ALIGN_VA_64;
   533	
   534			/* A random value per boot for bit slice [12:upper_bit) */
   535			va_align.bits = get_random_int() & va_align.mask;
   536		}
   537	
   538		if (cpu_has(c, X86_FEATURE_MWAITX))
   539			use_mwaitx_delay();
   540	
   541		if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
   542			u32 ecx;
   543	
   544			ecx = cpuid_ecx(0x8000001e);
 > 545			__max_die_per_package = nodes_per_socket = ((ecx >> 8) & 7) + 1;
   546		} else if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) {
   547			u64 value;
   548	
   549			rdmsrl(MSR_FAM10H_NODE_ID, value);
   550			__max_die_per_package = nodes_per_socket = ((value >> 3) & 7) + 1;
   551		}
   552	
   553		if (!boot_cpu_has(X86_FEATURE_AMD_SSBD) &&
   554		    !boot_cpu_has(X86_FEATURE_VIRT_SSBD) &&
   555		    c->x86 >= 0x15 && c->x86 <= 0x17) {
   556			unsigned int bit;
   557	
   558			switch (c->x86) {
   559			case 0x15: bit = 54; break;
   560			case 0x16: bit = 33; break;
   561			case 0x17: bit = 10; break;
   562			default: return;
   563			}
   564			/*
   565			 * Try to cache the base value so further operations can
   566			 * avoid RMW. If that faults, do not enable SSBD.
   567			 */
   568			if (!rdmsrl_safe(MSR_AMD64_LS_CFG, &x86_amd_ls_cfg_base)) {
   569				setup_force_cpu_cap(X86_FEATURE_LS_CFG_SSBD);
   570				setup_force_cpu_cap(X86_FEATURE_SSBD);
   571				x86_amd_ls_cfg_ssbd_mask = 1ULL << bit;
   572			}
   573		}
   574	
   575		resctrl_cpu_detect(c);
   576	}
   577	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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