[GIT PULL] csky changes for v5.12-rc1

From: guoren
Date: Sat Feb 27 2021 - 23:00:19 EST


Hi Linus,

The following changes since commit 7c53f6b671f4aba70ff15e1b05148b10d58c2837:

Linux 5.11-rc3 (2021-01-10 14:34:50 -0800)

are available in the Git repository at:

https://github.com/c-sky/csky-linux.git tags/csky-for-linus-5.12-rc1

for you to fetch changes up to 6607aa6f6b68fc9b5955755f1b1be125cf2a9d03:

csky: Fixup compile error (2021-02-27 22:04:14 +0800)

----------------------------------------------------------------
arch/csky patches for 5.12-rc1

Features:
- Add new memory layout 2.5G(user):1.5G(kernel)
- Add kmemleak support
- Reconstruct VDSO framework
Add VDSO with GENERIC_GETTIMEOFDAY,
GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
- Add faulthandler_disabled() check
- Support(Fixup) swapon
- Add(Fixup) _PAGE_ACCESSED for default pgprot
- abort uaccess retries upon fatal signal (From arm)

Fixup & Optimization:
- Fixup perf probe failed
- Fixup show_regs doesn't contain regs->usp
- Remove custom asm/atomic.h implementation
- Fixup barrier design
- Fixup futex SMP implementation
- Fixup asm/cmpxchg.h with correct ordering barrier
- Cleanup asm/spinlock.h
- Fixup PTE global for 2.5:1.5 virtual memory
- Remove prologue of page fault handler in entry.S
- Fix TLB maintenance synchronization problem
- Add show_tlb for CPU_CK860 debug
- Fixup FAULT_FLAG_XXX param for handle_mm_fault
- Fixup update_mmu_cache called with user io mapping
- Fixup do_page_fault parent irq status
- Fix a size determination in gpr_get()
- pgtable.h: Coding convention
- kprobe: Fixup code in simulate without 'long'
- Fixup pfn_valid error with wrong max_mapnr
- use free_initmem_default() in free_initmem()
- Fixup compile error

----------------------------------------------------------------
David Hildenbrand (1):
csky: use free_initmem_default() in free_initmem()

Guo Ren (27):
csky: Add memory layout 2.5G(user):1.5G(kernel)
csky: Fixup perf probe failed
csky: Fixup show_regs doesn't contain regs->usp
csky: Remove custom asm/atomic.h implementation
csky: Fixup barrier design
csky: Fixup futex SMP implementation
csky: Fixup asm/cmpxchg.h with correct ordering barrier
csky: Cleanup asm/spinlock.h
csky: Fixup PTE global for 2.5:1.5 virtual memory
csky: Remove prologue of page fault handler in entry.S
csky: Add kmemleak support
csky: Fix TLB maintenance synchronization problem
csky: Add show_tlb for CPU_CK860 debug
csky: Fixup FAULT_FLAG_XXX param for handle_mm_fault
csky: Fixup update_mmu_cache called with user io mapping
csky: Add faulthandler_disabled() check
csky: Fixup do_page_fault parent irq status
csky: Sync riscv mm/fault.c for easy maintenance
csky: mm: abort uaccess retries upon fatal signal
csky: Reconstruct VDSO framework
csky: Fixup _PAGE_ACCESSED for default pgprot
csky: pgtable.h: Coding convention
csky: Fixup swapon
csky: kprobe: Fixup code in simulate without 'long'
csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO
csky: Fixup pfn_valid error with wrong max_mapnr
csky: Fixup compile error

Tian Tao (1):
csky: remove unused including <linux/version.h>

Zhenzhong Duan (1):
csky: Fix a size determination in gpr_get()

arch/csky/Kconfig | 24 +-
arch/csky/abiv1/inc/abi/cacheflush.h | 1 -
arch/csky/abiv1/inc/abi/ckmmu.h | 10 +-
arch/csky/abiv1/inc/abi/entry.h | 1 -
arch/csky/abiv1/inc/abi/page.h | 1 -
arch/csky/abiv1/inc/abi/pgtable-bits.h | 40 +--
arch/csky/abiv1/inc/abi/reg_ops.h | 1 -
arch/csky/abiv1/inc/abi/regdef.h | 6 +-
arch/csky/abiv1/inc/abi/string.h | 1 -
arch/csky/abiv1/inc/abi/switch_context.h | 1 -
arch/csky/abiv1/inc/abi/vdso.h | 18 +-
arch/csky/abiv2/cacheflush.c | 3 +
arch/csky/abiv2/inc/abi/ckmmu.h | 44 +++-
arch/csky/abiv2/inc/abi/entry.h | 20 +-
arch/csky/abiv2/inc/abi/fpu.h | 1 -
arch/csky/abiv2/inc/abi/page.h | 1 -
arch/csky/abiv2/inc/abi/pgtable-bits.h | 37 ++-
arch/csky/abiv2/inc/abi/reg_ops.h | 1 -
arch/csky/abiv2/inc/abi/regdef.h | 6 +-
arch/csky/abiv2/inc/abi/switch_context.h | 1 -
arch/csky/abiv2/inc/abi/vdso.h | 20 +-
arch/csky/abiv2/sysdep.h | 1 -
arch/csky/include/asm/addrspace.h | 1 -
arch/csky/include/asm/atomic.h | 212 ----------------
arch/csky/include/asm/barrier.h | 83 +++++--
arch/csky/include/asm/bitops.h | 1 -
arch/csky/include/asm/bug.h | 3 +-
arch/csky/include/asm/cacheflush.h | 1 -
arch/csky/include/asm/checksum.h | 1 -
arch/csky/include/asm/clocksource.h | 8 +
arch/csky/include/asm/cmpxchg.h | 27 ++-
arch/csky/include/asm/elf.h | 1 -
arch/csky/include/asm/fixmap.h | 1 -
arch/csky/include/asm/ftrace.h | 1 -
arch/csky/include/asm/futex.h | 121 ++++++++++
arch/csky/include/asm/highmem.h | 1 -
arch/csky/include/asm/io.h | 1 -
arch/csky/include/asm/memory.h | 2 +-
arch/csky/include/asm/mmu.h | 1 -
arch/csky/include/asm/mmu_context.h | 10 +-
arch/csky/include/asm/page.h | 2 +-
arch/csky/include/asm/perf_event.h | 1 -
arch/csky/include/asm/pgalloc.h | 3 +-
arch/csky/include/asm/pgtable.h | 80 +++---
arch/csky/include/asm/processor.h | 3 +-
arch/csky/include/asm/ptrace.h | 1 -
arch/csky/include/asm/segment.h | 3 +-
arch/csky/include/asm/shmparam.h | 1 -
arch/csky/include/asm/spinlock.h | 167 -------------
arch/csky/include/asm/spinlock_types.h | 10 -
arch/csky/include/asm/string.h | 1 -
arch/csky/include/asm/switch_to.h | 1 -
arch/csky/include/asm/syscalls.h | 1 -
arch/csky/include/asm/thread_info.h | 2 -
arch/csky/include/asm/tlb.h | 1 -
arch/csky/include/asm/tlbflush.h | 1 -
arch/csky/include/asm/traps.h | 1 -
arch/csky/include/asm/uaccess.h | 1 -
arch/csky/include/asm/unistd.h | 1 -
arch/csky/include/asm/vdso.h | 21 +-
arch/csky/include/asm/vdso/clocksource.h | 9 +
arch/csky/include/asm/vdso/gettimeofday.h | 114 +++++++++
arch/csky/include/asm/vdso/processor.h | 12 +
arch/csky/include/asm/vdso/vsyscall.h | 22 ++
arch/csky/include/uapi/asm/byteorder.h | 1 -
arch/csky/include/uapi/asm/perf_regs.h | 1 -
arch/csky/include/uapi/asm/ptrace.h | 1 -
arch/csky/include/uapi/asm/sigcontext.h | 1 -
arch/csky/include/uapi/asm/unistd.h | 1 -
arch/csky/kernel/Makefile | 2 +-
arch/csky/kernel/atomic.S | 24 +-
arch/csky/kernel/entry.S | 106 +-------
arch/csky/kernel/head.S | 10 +-
arch/csky/kernel/perf_event.c | 4 +-
arch/csky/kernel/probes/simulate-insn.c | 22 +-
arch/csky/kernel/ptrace.c | 128 +++++++++-
arch/csky/kernel/setup.c | 18 +-
arch/csky/kernel/signal.c | 4 +-
arch/csky/kernel/smp.c | 7 +-
arch/csky/kernel/traps.c | 10 +-
arch/csky/kernel/vdso.c | 127 ++++++----
arch/csky/kernel/vdso/.gitignore | 4 +
arch/csky/kernel/vdso/Makefile | 72 ++++++
arch/csky/kernel/vdso/note.S | 12 +
arch/csky/kernel/vdso/rt_sigreturn.S | 14 ++
arch/csky/kernel/vdso/so2s.sh | 5 +
arch/csky/kernel/vdso/vdso.S | 16 ++
arch/csky/kernel/vdso/vdso.lds.S | 58 +++++
arch/csky/kernel/vdso/vgettimeofday.c | 28 +++
arch/csky/kernel/vmlinux.lds.S | 2 +-
arch/csky/mm/fault.c | 388 ++++++++++++++++++------------
arch/csky/mm/init.c | 56 +++--
arch/csky/mm/tlb.c | 42 +++-
include/linux/cpuhotplug.h | 1 +
94 files changed, 1347 insertions(+), 992 deletions(-)
delete mode 100644 arch/csky/include/asm/atomic.h
create mode 100644 arch/csky/include/asm/clocksource.h
create mode 100644 arch/csky/include/asm/futex.h
create mode 100644 arch/csky/include/asm/vdso/clocksource.h
create mode 100644 arch/csky/include/asm/vdso/gettimeofday.h
create mode 100644 arch/csky/include/asm/vdso/processor.h
create mode 100644 arch/csky/include/asm/vdso/vsyscall.h
create mode 100644 arch/csky/kernel/vdso/.gitignore
create mode 100644 arch/csky/kernel/vdso/Makefile
create mode 100644 arch/csky/kernel/vdso/note.S
create mode 100644 arch/csky/kernel/vdso/rt_sigreturn.S
create mode 100755 arch/csky/kernel/vdso/so2s.sh
create mode 100644 arch/csky/kernel/vdso/vdso.S
create mode 100644 arch/csky/kernel/vdso/vdso.lds.S
create mode 100644 arch/csky/kernel/vdso/vgettimeofday.c