* Re: [PATCH v5 05/12] x86/mm: add INVLPGB support code
[not found] <20250116023127.1531583-6-riel@surriel.com>
@ 2025-01-17 3:37 ` kernel test robot
2025-01-17 14:20 ` Rik van Riel
0 siblings, 1 reply; 3+ messages in thread
From: kernel test robot @ 2025-01-17 3:37 UTC (permalink / raw)
To: Rik van Riel; +Cc: llvm, oe-kbuild-all
Hi Rik,
kernel test robot noticed the following build errors:
[auto build test ERROR on tip/x86/mm]
[also build test ERROR on tip/master linus/master tip/x86/core v6.13-rc7]
[cannot apply to tip/auto-latest next-20250116]
[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/Rik-van-Riel/x86-mm-make-MMU_GATHER_RCU_TABLE_FREE-unconditional/20250116-103657
base: tip/x86/mm
patch link: https://lore.kernel.org/r/20250116023127.1531583-6-riel%40surriel.com
patch subject: [PATCH v5 05/12] x86/mm: add INVLPGB support code
config: i386-buildonly-randconfig-001-20250117 (https://download.01.org/0day-ci/archive/20250117/202501171121.nQcwVI41-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250117/202501171121.nQcwVI41-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501171121.nQcwVI41-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from arch/x86/kernel/asm-offsets.c:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:9:
In file included from include/linux/sched/task.h:13:
In file included from include/linux/uaccess.h:12:
In file included from arch/x86/include/asm/uaccess.h:17:
In file included from arch/x86/include/asm/tlbflush.h:13:
>> arch/x86/include/asm/invlpgb.h:26:49: error: invalid input size for constraint 'a'
26 | asm volatile(".byte 0x0f, 0x01, 0xfe" : : "a" (rax), "c" (ecx), "d" (edx));
| ^
In file included from arch/x86/kernel/asm-offsets.c:14:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2223:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
1 warning and 1 error generated.
make[3]: *** [scripts/Makefile.build:102: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=3995685176
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1263: prepare0] Error 2 shuffle=3995685176
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:251: __sub-make] Error 2 shuffle=3995685176
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:251: __sub-make] Error 2 shuffle=3995685176
make: Target 'prepare' not remade because of errors.
vim +/a +26 arch/x86/include/asm/invlpgb.h
7
8 /*
9 * INVLPGB does broadcast TLB invalidation across all the CPUs in the system.
10 *
11 * The INVLPGB instruction is weakly ordered, and a batch of invalidations can
12 * be done in a parallel fashion.
13 *
14 * TLBSYNC is used to ensure that pending INVLPGB invalidations initiated from
15 * this CPU have completed.
16 */
17 static inline void __invlpgb(unsigned long asid, unsigned long pcid,
18 unsigned long addr, u16 extra_count,
19 bool pmd_stride, unsigned long flags)
20 {
21 u32 edx = (pcid << 16) | asid;
22 u32 ecx = (pmd_stride << 31) | extra_count;
23 u64 rax = addr | flags;
24
25 /* INVLPGB; supported in binutils >= 2.36. */
> 26 asm volatile(".byte 0x0f, 0x01, 0xfe" : : "a" (rax), "c" (ecx), "d" (edx));
27 }
28
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread