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Subject[PULL 00/36] xtensa updates for v5.19
Date
Hi Linus,

please pull the following updates for the xtensa architecture.

The following changes since commit 672c0c5173427e6b3e2a9bbb7be51ceeec78093a:

Linux 5.18-rc5 (2022-05-01 13:57:58 -0700)

are available in the Git repository at:

https://github.com/jcmvbkbc/linux-xtensa.git tags/xtensa-20220523

for you to fetch changes up to dc60001e1a305ad8bba1ddaf09484e0e150aba60:

xtensa: Return true/false (not 1/0) from bool function (2022-05-23 00:33:05 -0700)

----------------------------------------------------------------
Xtensa updates for v5.19

- support coprocessors on SMP
- support KCSAN
- support handling protection faults in noMMU configurations
- support using coprocessors in the kernel mode
- support hibernation
- enable context tracking
- enable HAVE_VIRT_CPU_ACCOUNTING_GEN
- support division by 0 exception on cores without HW division option
- clean up locking in the ISS network driver
- clean up kernel entry assemly code
- various minor fixes

----------------------------------------------------------------
Jason Wang (1):
xtensa: no need to initialise statics to 0

Max Filippov (33):
xtensa: localize labels used in memmove
xtensa: iss: drop opened_list logic from the network driver
xtensa: iss: replace iss_net_set_mac with eth_mac_addr
xtensa: iss: clean up per-device locking in network driver
xtensa: iss: extract and constify network callbacks
xtensa: move asid_cache from fault.c to mmu.c
xtensa: extract vmalloc_fault code into a function
xtensa: noMMU: allow handling protection faults
xtensa: drop dead code from entry.S
xtensa: move trace_hardirqs_off call back to entry.S
xtensa: use abi_* register names in the kernel exit code
xtensa: enable context tracking
xtensa: enable HAVE_VIRT_CPU_ACCOUNTING_GEN
xtensa: enable KCSAN
xtensa: clean up function declarations in traps.c
xtensa: clean up exception handler prototypes
xtensa: clean up declarations in coprocessor.h
xtensa: clean up excsave1 initialization
xtensa: use callx0 opcode in fast_coprocessor
xtensa: handle coprocessor exceptions in kernel mode
xtensa: add xtensa_xsr macro
xtensa: merge SAVE_CP_REGS_TAB and LOAD_CP_REGS_TAB
xtensa: get rid of stack frame in coprocessor_flush
xtensa: support coprocessors on SMP
xtensa: add hibernation support
xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
irqchip: irq-xtensa-mx: fix initial IRQ affinity
xtensa: fix declaration of _SecondaryResetVector_text_*
xtensa: don't leave invalid TLB entry in fast_store_prohibited
xtensa: clean up labels in the kernel entry assembly
xtensa: add trap handler for division by zero
xtensa: support artificial division by 0 exception
xtensa: improve call0 ABI probing

Yang Li (1):
xtensa: Return true/false (not 1/0) from bool function

Yi Yang (1):
xtensa/simdisk: fix proc_read_simdisk()

.../debug/debug-vm-pgtable/arch-support.txt | 2 +-
.../time/context-tracking/arch-support.txt | 2 +-
.../features/time/virt-cpuacct/arch-support.txt | 2 +-
arch/xtensa/Kconfig | 18 ++
arch/xtensa/boot/lib/Makefile | 1 +
arch/xtensa/include/asm/barrier.h | 12 +-
arch/xtensa/include/asm/bitops.h | 10 +-
arch/xtensa/include/asm/coprocessor.h | 11 +-
arch/xtensa/include/asm/processor.h | 7 +
arch/xtensa/include/asm/sections.h | 2 +-
arch/xtensa/include/asm/thread_info.h | 11 +-
arch/xtensa/include/asm/traps.h | 40 ++-
arch/xtensa/kernel/Makefile | 1 +
arch/xtensa/kernel/asm-offsets.c | 19 +-
arch/xtensa/kernel/coprocessor.S | 230 ++++++++------
arch/xtensa/kernel/entry.S | 335 ++++++++++++++-------
arch/xtensa/kernel/hibernate.c | 25 ++
arch/xtensa/kernel/process.c | 112 +++++--
arch/xtensa/kernel/ptrace.c | 3 +-
arch/xtensa/kernel/s32c1i_selftest.c | 7 +-
arch/xtensa/kernel/signal.c | 3 +-
arch/xtensa/kernel/smp.c | 7 +
arch/xtensa/kernel/traps.c | 143 +++++----
arch/xtensa/lib/Makefile | 2 +
arch/xtensa/lib/kcsan-stubs.c | 54 ++++
arch/xtensa/lib/memcopy.S | 20 +-
arch/xtensa/mm/Makefile | 3 +-
arch/xtensa/mm/fault.c | 112 +++----
arch/xtensa/mm/mmu.c | 2 +
arch/xtensa/platforms/iss/network.c | 150 ++++-----
arch/xtensa/platforms/iss/simdisk.c | 18 +-
arch/xtensa/platforms/xt2000/setup.c | 2 +-
drivers/irqchip/irq-xtensa-mx.c | 18 +-
33 files changed, 896 insertions(+), 488 deletions(-)
create mode 100644 arch/xtensa/kernel/hibernate.c
create mode 100644 arch/xtensa/lib/kcsan-stubs.c

--
Thanks.
-- Max

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