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2018-10-26csky: Misc headersGuo Ren-0/+351
This patch adds csky registers' definition, bitops, byteorder, asm-offsets codes. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: SMP supportGuo Ren-0/+263
This patch adds boot, ipi, hotplug codes for SMP. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: Debug and Ptrace GDBGuo Ren-0/+510
This patch adds arch ptrace implementation, stack dump and bug.h. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: User accessGuo Ren-0/+678
The patch adds "user access from kernel" codes. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: Library functionsGuo Ren-0/+1420
This patch adds string optimize codes and some auxiliary codes. Signed-off-by: Chen Linfei <linfei_chen@c-sky.com> Signed-off-by: Mao Han <han_mao@c-sky.com> Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: ELF and module probeGuo Ren-0/+246
This patch adds ELF definition and module relocate codes. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: Atomic operationsGuo Ren-0/+665
This patch adds atomic, cmpxchg, spinlock files. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Andrea Parri <andrea.parri@amarulasolutions.com> Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Peter Zijlstra <peterz@infradead.org>
2018-10-26csky: IRQ handlingGuo Ren-0/+71
This patch adds IRQ handling files. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: VDSO and rt_sigreturnGuo Ren-0/+138
This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-26csky: Process management and SignalGuo Ren-0/+1231
This patch adds files related to task_switch, sigcontext, signal, fpu context switch. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Eric W. Biederman <ebiederm@xmission.com>
2018-10-25csky: MMU and page table managementGuo Ren-0/+1620
This patch adds files related to memory management and here is our memory-layout: Fixmap : 0xffc02000 – 0xfffff000 (4 MB - 12KB) Pkmap : 0xff800000 – 0xffc00000 (4 MB) Vmalloc : 0xf0200000 – 0xff000000 (238 MB) Lowmem : 0x80000000 – 0xc0000000 (1GB) abiv1 CPU (CK610) is VIPT cache and it doesn't support highmem. abiv2 CPUs are all PIPT cache and they could support highmem. Lowmem is directly mapped by msa0 & msa1 reg, and we needn't setup memory page table for it. Link:https://lore.kernel.org/lkml/20180518215548.GH17671@n2100.armlinux.org.uk/ Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Christoph Hellwig <hch@infradead.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: Cache and TLB routinesGuo Ren-0/+838
This patch adds cache and tlb sync codes for abiv1 & abiv2. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: System CallGuo Ren-0/+153
This patch adds files related to syscall. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: Exception handling and mm-faultGuo Ren-0/+1546
This patch adds exception handling code, cpuinfo and mm-fault code. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: Kernel bootingGuo Ren-0/+305
This patch add boot code. Thx boot params is all in dtb and it's the only way to let kernel get bootloader param information. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: defconfigGuo Ren-0/+61
This patch adds csky defconfig. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2018-10-25csky: Build infrastructureGuo Ren-0/+466
This patch adds Makefile, Kconfig for build infrastructure. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Acked-by: Arnd Bergmann <arnd@arndb.de>