Re: [PATCH 5/6] arm64: errata: Add QCOM_KRYO_5XX_GOLD to the spectre_bhb_k24_list

From: kernel test robot
Date: Tue Dec 10 2024 - 09:45:57 EST


Hi Douglas,

kernel test robot noticed the following build errors:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on arm-perf/for-next/perf kvmarm/next soc/for-next arm/for-next arm/fixes linus/master v6.13-rc2 next-20241210]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Douglas-Anderson/arm64-errata-Add-QCOM_KRYO_4XX_GOLD-to-the-spectre_bhb_k24_list/20241210-014833
base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link: https://lore.kernel.org/r/20241209094310.5.I41e227ed809ea607114027209b57d02dc0e98384%40changeid
patch subject: [PATCH 5/6] arm64: errata: Add QCOM_KRYO_5XX_GOLD to the spectre_bhb_k24_list
config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20241210/202412102250.hPlsx2c8-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241210/202412102250.hPlsx2c8-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412102250.hPlsx2c8-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from arch/arm64/include/asm/cache.h:43,
from include/linux/cache.h:6,
from include/linux/jiffies.h:5,
from include/linux/ktime.h:25,
from include/linux/timer.h:6,
from include/linux/workqueue.h:9,
from include/linux/bpf.h:10,
from arch/arm64/kernel/proton-pack.c:21:
arch/arm64/kernel/proton-pack.c: In function 'spectre_bhb_loop_affected':
>> arch/arm64/kernel/proton-pack.c:870:43: error: 'MIDR_QCOM_KRYO_5XX_GOLD' undeclared (first use in this function); did you mean 'MIDR_QCOM_KRYO_4XX_GOLD'?
870 | MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/cputype.h:251:26: note: in definition of macro 'MIDR_RANGE'
251 | .model = m, \
| ^
arch/arm64/kernel/proton-pack.c:870:25: note: in expansion of macro 'MIDR_ALL_VERSIONS'
870 | MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
| ^~~~~~~~~~~~~~~~~
arch/arm64/kernel/proton-pack.c:870:43: note: each undeclared identifier is reported only once for each function it appears in
870 | MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/include/asm/cputype.h:251:26: note: in definition of macro 'MIDR_RANGE'
251 | .model = m, \
| ^
arch/arm64/kernel/proton-pack.c:870:25: note: in expansion of macro 'MIDR_ALL_VERSIONS'
870 | MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
| ^~~~~~~~~~~~~~~~~


vim +870 arch/arm64/kernel/proton-pack.c

843
844 /*
845 * This must be called with SCOPE_LOCAL_CPU for each type of CPU, before any
846 * SCOPE_SYSTEM call will give the right answer.
847 */
848 u8 spectre_bhb_loop_affected(int scope)
849 {
850 u8 k = 0;
851 static u8 max_bhb_k;
852
853 if (scope == SCOPE_LOCAL_CPU) {
854 static const struct midr_range spectre_bhb_k32_list[] = {
855 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
856 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78AE),
857 MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
858 MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
859 MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
860 MIDR_ALL_VERSIONS(MIDR_CORTEX_X2),
861 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
862 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
863 {},
864 };
865 static const struct midr_range spectre_bhb_k24_list[] = {
866 MIDR_ALL_VERSIONS(MIDR_CORTEX_A76),
867 MIDR_ALL_VERSIONS(MIDR_CORTEX_A77),
868 MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
869 MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_GOLD),
> 870 MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_5XX_GOLD),
871 {},
872 };
873 static const struct midr_range spectre_bhb_k11_list[] = {
874 MIDR_ALL_VERSIONS(MIDR_AMPERE1),
875 {},
876 };
877 static const struct midr_range spectre_bhb_k8_list[] = {
878 MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
879 MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
880 {},
881 };
882
883 if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k32_list))
884 k = 32;
885 else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k24_list))
886 k = 24;
887 else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k11_list))
888 k = 11;
889 else if (is_midr_in_range_list(read_cpuid_id(), spectre_bhb_k8_list))
890 k = 8;
891
892 max_bhb_k = max(max_bhb_k, k);
893 } else {
894 k = max_bhb_k;
895 }
896
897 return k;
898 }
899

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