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  1. 12 3月, 2021 3 次提交
    • S
      park: Reserve park mem before kexec reserved · 1b059882
      由 Sang Yan 提交于 
      hulk inclusion
category: feature
bugzilla: 48159
CVE: N/A

------------------------------

reserve_crashkernel or reserve_quick_kexec may find one sutiable
memory region and reserves it, which address of the region is
not fixed.

As a result, cpu park reserves memory could be failed while
specified address used by crashkernel or quickkexec.

So, move reserve_park_mem before reserve_crashkernel and
reserve_quick_kexec.

Signed-off-by: Sang Yan <sangyan(a)huawei.com>
Reviewed-by: Jing Xiangfeng <jingxiangfeng(a)huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
      1b059882
    • Z
      pmem: Enable legacy pmem on openEuler · 22d02cc6
      由 ZhuLing 提交于 
      hulk inclusion
category: feature
bugzilla: 48159
CVE: NA

------------------------------

Enable legacy pmem on openEuler defconfig both
arm64 and x86

Signed-off-by: ZhuLing <zhuling8(a)huawei.com>
Signed-off-by: Sang Yan <sangyan(a)huawei.com>
Acked-by: Hanjun Guo <guohanjun(a)huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
      22d02cc6
    • Z
      arm64: Add memmap parameter and register pmem · 0b88c13e
      由 ZhuLing 提交于 
      hulk inclusion
category: feature
bugzilla: 48159
CVE: NA

------------------------------

Register pmem in arm64:
Use memmap(memmap=nn[KMG]!ss[KMG]) reserve memory and
e820(driver/nvdimm/e820.c) function to register persistent
memory in arm64. when the kernel restart or update, the data
in PMEM will not be lost and can be loaded faster. this is a
general features.

driver/nvdimm/e820.c:
The function of this file is scan "iomem_resource" and take
advantage of nvdimm resource discovery mechanism by registering
a resource named "Persistent Memory (legacy)", this function
doesn't depend on architecture.

We will push the feature to linux kernel community and discuss to
modify the file name. because people have a mistaken notion that
the e820.c is depend on x86.

If you want use this features, you need do as follows:
1.Reserve memory: add memmap to reserve memory in grub.cfg
  memmap=nn[KMG]!ss[KMG] exp:memmap=100K!0x1a0000000.
2.Insmod nd_e820.ko: modprobe nd_e820.
3.Check pmem device in /dev exp: /dev/pmem0

Signed-off-by: ZhuLing <zhuling8(a)huawei.com>
Signed-off-by: Sang Yan <sangyan(a)huawei.com>
Acked-by: Hanjun Guo <guohanjun(a)huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
      0b88c13e
  3. 11 3月, 2021 2 次提交
  5. 08 3月, 2021 2 次提交
    • X
      arm64: ipi_nmi: fix compile error when CONFIG_KGDB is disabled · 227d5adb
      由 Xiongfeng Wang 提交于 
      hulk inclusion
category: bugfix
bugzilla: 50485
CVE: NA

-------------------------------------------------------------------------

Fix the following compile error.

arch/arm64/kernel/ipi_nmi.c: In function ‘ipi_nmi_handler’:
arch/arm64/kernel/ipi_nmi.c:54:7: error: implicit declaration of function ‘kgdb_nmicallback’ [-Werror=implicit-function-declaration]
  if (!kgdb_nmicallback(cpu, get_irq_regs()))
       ^~~~~~~~~~~~~~~~
Signed-off-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
      227d5adb
    • F
      kbuild: fix compile error in Makefile.lib · c7245434
      由 Fang Yafen 提交于 
      raspberrypi inclusion
category: feature
bugzilla: 50432

------------------------------

Fix the following compile error when using bcm2711_defconfig (for RPi).

/bin/sh: -c: line 0: syntax error near unexpected token `('
/bin/sh: -c: line 0: `set -e;
echo '  DTCO    arch/arm64/boot/dts/overlays/act-led.dtbo';
mkdir -p arch/arm64/boot/dts/overlays/ ;
gcc -E -Wp,-MMD,arch/arm64/boot/dts/overlays/.act-led.dtbo.d.pre.tmp
-nostdinc -I./scripts/dtc/include-prefixes -undef -D__DTS__
-x assembler-with-cpp
-o arch/arm64/boot/dts/overlays/.act-led.dtbo.dts.tmp
arch/arm64/boot/dts/overlays/act-led-overlay.dts ;
./scripts/dtc/dtc -@ -H epapr -O dtb
-o arch/arm64/boot/dts/overlays/act-led.dtbo -b 0
-i arch/arm64/boot/dts/overlays/ -Wno-interrupt_provider
-Wno-unit_address_vs_reg -Wno-unit_address_format -Wno-gpios_property
-Wno-avoid_unnecessary_addr_size -Wno-alias_paths
-Wno-graph_child_address -Wno-simple_bus_reg
-Wno-unique_unit_address -Wno-pci_device_reg
-Wno-interrupts_property ifeq (y,y) -Wno-label_is_string
-Wno-reg_format -Wno-pci_device_bus_num -Wno-i2c_bus_reg
-Wno-spi_bus_reg -Wno-avoid_default_addr_size endif
-d arch/arm64/boot/dts/overlays/.act-led.dtbo.d.dtc.tmp
arch/arm64/boot/dts/overlays/.act-led.dtbo.dts.tmp ;
cat ...; rm -f arch/arm64/boot/dts/overlays/.act-led.dtbo.d'
make[2]: *** [scripts/Makefile.lib;363:
arch/arm64/boot/dts/overlays/act-led.dtbo] Error 1
make[2]: *** Waiting for unfinished jobs....

Related patches:

ffa2d13c BCM2708: Add core Device Tree support
4894352e kbuild: Silence unavoidable dtc overlay warnings
a4a4d07f kbuild: keep the original function for non-RPi

Signed-off-by: Fang Yafen <yafen(a)iscas.ac.cn>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
      c7245434
  7. 05 3月, 2021 10 次提交
  9. 04 3月, 2021 23 次提交