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linux/arch/mips
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Paul Burton e4acfbc18f
MIPS: Check Loongson3 LL/SC errata workaround correctness 
When Loongson3 LL/SC errata workarounds are enabled (ie.
CONFIG_CPU_LOONGSON3_WORKAROUNDS=y) run a tool to scan through the
compiled kernel & ensure that the workaround is applied correctly. That
is, ensure that:

  - Every LL or LLD instruction is preceded by a sync instruction.

  - Any branches from within an LL/SC loop to outside of that loop
    target a sync instruction.

Reasoning for these conditions can be found by reading the comment above
the definition of __SYNC_loongson3_war in arch/mips/include/asm/sync.h.

This tool will help ensure that we don't inadvertently introduce code
paths that miss the required workarounds.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-kernel@vger.kernel.org
2019-10-07 09:43:13 -07:00
..
alchemy treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
ar7 The main MIPS changes for a pretty light v5.3 cycle, including: 2019-07-17 09:42:03 -07:00
ath25
ath79 The main MIPS changes for a pretty light v5.3 cycle, including: 2019-07-17 09:42:03 -07:00
bcm47xx MIPS: BCM47XX: Add support for Netgear R6200 V1 2019-07-25 22:10:05 -07:00
bcm63xx MIPS: fix some more fall through errors in arch/mips 2019-07-16 12:40:16 +01:00
bmips docs: arm: convert docs to ReST and rename to *.rst 2019-07-15 09:20:24 -03:00
boot MIPS: ralink: Add GARDENA smart Gateway MT7688 board 2019-10-07 09:41:35 -07:00
cavium-octeon Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
cobalt treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
configs Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
crypto
dec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
emma treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
fw MIPS: fw/arc: Remove unused addr variable 2019-10-04 11:46:22 -07:00
generic treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
include MIPS: barrier: Make __smp_mb__before_atomic() a no-op for Loongson3 2019-10-07 09:43:08 -07:00
jazz dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
jz4740 Merge branch 'ingenic-tcu-v5.4' into mips-next 2019-08-08 15:33:16 -07:00
kernel MIPS: genex: Don't reload address unnecessarily 2019-10-07 09:43:10 -07:00
kvm Bugfixes (arm and x86) and cleanups. 2019-08-09 15:46:29 -07:00
lantiq MIPS: lantiq: update the clock alias' for the mainline PCIe PHY driver 2019-08-24 15:13:22 +01:00
lasat treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
lib MIPS: bitops: Use BIT_WORD() & BITS_PER_LONG 2019-10-07 09:42:55 -07:00
loongson32 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
loongson64 MIPS: barrier: Remove loongson_llsc_mb() 2019-10-07 09:43:06 -07:00
math-emu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 454 2019-06-19 17:09:09 +02:00
mm mips: use generic mmap top-down layout and brk randomization 2019-09-24 15:54:12 -07:00
mti-malta MIPS: malta: Drop prom_free_prom_memory 2019-08-23 14:47:13 +01:00
net treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
netlogic MIPS: xlp: Drop boot_mem_map 2019-08-23 14:47:21 +01:00
oprofile MIPS: OProfile: Mark expected switch fall-throughs 2019-07-30 09:40:17 -07:00
paravirt
pci MIPS: SGI-IP27: get rid of compact node ids 2019-10-07 09:37:59 -07:00
pic32 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 2019-06-05 17:37:18 +02:00
pistachio A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
pmcs-msp71xx MIPS: pmcs-msp71xx: Remove unused addr variable 2019-10-03 15:47:17 -07:00
pnx833x A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
power treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 2019-06-05 17:37:04 +02:00
ralink MIPS: ralink: deactivate PCI support for SOC_MT7621 2019-09-06 08:45:03 -07:00
rb532 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
sgi-ip22 MIPS: ip22: Drop addr_is_ram 2019-08-23 14:47:18 +01:00
sgi-ip27 MIPS: SGI-IP27: get rid of compact node ids 2019-10-07 09:37:59 -07:00
sgi-ip32 Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
sibyte treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
sni treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 210 2019-05-30 11:29:53 -07:00
tools MIPS: Check Loongson3 LL/SC errata workaround correctness 2019-10-07 09:43:13 -07:00
txx9 A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
vdso MIPS: VDSO: Fix build for binutils < 2.25 2019-10-02 14:07:32 -07:00
vr41xx treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kbuild.platforms treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kconfig MIPS: r4k-bugs64: Limit R4k bug checks to affected systems 2019-10-07 09:38:53 -07:00
Kconfig.debug
Makefile MIPS: Check Loongson3 LL/SC errata workaround correctness 2019-10-07 09:43:13 -07:00
Makefile.postlink MIPS: Check Loongson3 LL/SC errata workaround correctness 2019-10-07 09:43:13 -07:00