xiaomi-sm8450/android_kernel_xiaomi_sm8450
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120 Commits

Author SHA1 Message Date
Guo Ren
8f4f1639a1 csky: optimize kernel panic print. 
Use STACKTRACE to optimize panic print more pretty and align registers
printing.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
 2018-12-31 23:15:38 +08:00
Guo Ren
0ea2dc7cd6 csky: stacktrace supported. 
The gcc option "-mbacktrace" will push fp(r8),lr into stack and we could
unwind the stack with:
	fp = *fp
	lr = (unsigned int *)fp[1]

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
 2018-12-31 23:12:22 +08:00
Guo Ren
859e5f45cb csky: CPU-hotplug supported for SMP 
This is a simple implement of CPU-hotplug for power saving. CPU use
wait instruction to enter power saving mode and waiting for IPI wakeup
signal.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
 2018-12-31 23:03:53 +08:00
Guo Ren
789154c2ad csky: fixup save hi,lo,dspcr regs in switch_stack. 
HI, LO, DSPCR registers are 807/810 related regs and no need for 610/860.
All of the regs must be saved in pt_regs and switch_stack. This patch
fixup saving dspcr reg in switch_stack and pt_regs.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
 2018-12-31 22:57:27 +08:00
Guo Ren
31295a72b5 csky: remove syscall_exit_work 
Remove syscall_exit_work and union all to ret_from_exception.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
 2018-12-31 22:57:27 +08:00
Yangtao Li
398539dd69 csky: Don't leak device tree node reference 
of_find_node_by_type() acquires a reference to the node returned by it
and that reference needs to be dropped by its caller. setup_smp()
doesn't do that, so fix it by converting to for_each_of_cpu_node().

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
 2018-12-30 20:25:39 +08:00
Mike Rapoport
aca52c3983 mm: remove CONFIG_HAVE_MEMBLOCK 
All architecures use memblock for early memory management. There is no need
for the CONFIG_HAVE_MEMBLOCK configuration option.

[rppt@linux.vnet.ibm.com: of/fdt: fixup #ifdefs]
  Link: http://lkml.kernel.org/r/20180919103457.GA20545@rapoport-lnx
[rppt@linux.vnet.ibm.com: csky: fixups after bootmem removal]
  Link: http://lkml.kernel.org/r/20180926112744.GC4628@rapoport-lnx
[rppt@linux.vnet.ibm.com: remove stale #else and the code it protects]
  Link: http://lkml.kernel.org/r/1538067825-24835-1-git-send-email-rppt@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1536927045-23536-4-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Tested-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2018-10-31 08:54:15 -07:00
Guo Ren
735ee005c3 csky: Misc headers 
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>
 2018-10-26 00:54:26 +08:00
Guo Ren
9910698657 csky: SMP support 
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>
 2018-10-26 00:54:26 +08:00
Guo Ren
2ce36bfa6a csky: Debug and Ptrace GDB 
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>
 2018-10-26 00:54:25 +08:00
Guo Ren
c5af58b769 csky: Library functions 
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>
 2018-10-26 00:54:24 +08:00
Guo Ren
9d056df092 csky: ELF and module probe 
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>
 2018-10-26 00:54:23 +08:00
Guo Ren
a0ae62806f csky: Atomic operations 
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>
 2018-10-26 00:54:23 +08:00
Guo Ren
e38a5272ba csky: IRQ handling 
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>
 2018-10-26 00:54:22 +08:00
Guo Ren
dd3ef10ea2 csky: VDSO and rt_sigreturn 
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>
 2018-10-26 00:54:22 +08:00
Guo Ren
e9564df753 csky: Process management and Signal 
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>
 2018-10-26 00:54:13 +08:00
Guo Ren
4859bfca11 csky: System Call 
This patch adds files related to syscall.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
 2018-10-25 23:36:19 +08:00
Guo Ren
081860b970 csky: Exception handling and mm-fault 
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>
 2018-10-25 23:36:19 +08:00
Guo Ren
9143a9359d csky: Kernel booting 
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>
 2018-10-25 23:36:19 +08:00
Guo Ren
c32e64e852 csky: Build infrastructure 
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>
 2018-10-25 23:36:19 +08:00