Hosts the 0x221E linux distro kernel. https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-6.0.y 2022-08-12T05:10:11Z 2022-08-12T05:10:11Z Qing Zhang 2022-08-06T08:10:04Z urn:sha1:93a4fa622eb061f75f87f0cf9609ab4e69c67d01 1. Use common arch_stack_walk() infrastructure to avoid duplicated code and avoid taking care of the stack storage and filtering. 2. Add sched_ra (means sched return address) and sched_cfa (means sched call frame address) to thread_info, and store them in switch_to(). 3. Add __get_wchan() implementation. Now we can print the process stack and wait channel by cat /proc/*/stack and /proc/*/wchan. Signed-off-by: Qing Zhang <zhangqing@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 2022-07-07T09:41:01Z Qi Hu 2022-07-06T11:29:37Z urn:sha1:112380996ac22e428264cd7186722e784db887e4 The `vcsr` only exists in the old hardware design, it isn't used in any shipped hardware from Loongson-3A5000 on. Both scalar FP and LSX/LASX instructions use the `fcsr` as their control and status registers now. For example, the RM control bit in fcsr0 is shared by FP, LSX and LASX instructions. Particularly, fcsr16 to fcsr31 are reserved for LSX/LASX now, access to these registers has no visible effect if LSX/LASX is enabled, and will cause SXD/ASXD exceptions if LSX/LASX is not enabled. So, mentions of vcsr are obsolete in the first place (it was just used for debugging), let's remove them. Reviewed-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Qi Hu <huqi@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 2022-06-03T12:09:28Z Huacai Chen 2022-05-31T10:04:11Z urn:sha1:803b0fc5c3f2baa6e54978cd576407896f789b08 Add process management support for LoongArch, including: thread info definition, context switch and process tracing. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>