Re: [PATCH v1 1/3] arm: npcm: add basic support for Nuvoton BMCs

From: kbuild test robot
Date: Wed Aug 23 2017 - 22:55:11 EST


Hi Brendan,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc6 next-20170823]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Brendan-Higgins/arm-npcm-add-basic-support-for-Nuvoton-BMCs/20170824-031106
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm

All errors (new ones prefixed by >>):

arch/arm/mach-npcm/headsmp.S: Assembler messages:
>> arch/arm/mach-npcm/headsmp.S:73: Error: selected processor does not support `dsb' in ARM mode
>> arch/arm/mach-npcm/headsmp.S:74: Error: selected processor does not support `isb' in ARM mode

vim +73 arch/arm/mach-npcm/headsmp.S

42
43 ENTRY(v7_invalidate_l1_npcmX50)
44 mov r0, #0
45 mcr p15, 0, r0, c7, c5, 0 /* invalidate I cache */
46 mcr p15, 2, r0, c0, c0, 0
47 mrc p15, 1, r0, c0, c0, 0
48
49 ldr r1, =0x7fff
50 and r2, r1, r0, lsr #13
51
52 ldr r1, =0x3ff
53
54 and r3, r1, r0, lsr #3 /* NumWays - 1 */
55 add r2, r2, #1 /* NumSets */
56
57 and r0, r0, #0x7
58 add r0, r0, #4 /* SetShift */
59
60 clz r1, r3 /* WayShift */
61 add r4, r3, #1 /* NumWays */
62 1: sub r2, r2, #1 /* NumSets-- */
63 mov r3, r4 /* Temp = NumWays */
64 2: subs r3, r3, #1 /* Temp-- */
65 mov r5, r3, lsl r1
66 mov r6, r2, lsl r0
67 /* Reg = (Temp << WayShift) | (NumSets << SetShift) */
68 orr r5, r5, r6
69 mcr p15, 0, r5, c7, c6, 2
70 bgt 2b
71 cmp r2, #0
72 bgt 1b
> 73 dsb
> 74 isb
75 mov pc, lr
76 ENDPROC(v7_invalidate_l1_npcmX50)
77

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