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[PULL 00/68] nios2 patch queue


From: Richard Henderson
Subject: [PULL 00/68] nios2 patch queue
Date: Tue, 26 Apr 2022 11:17:59 -0700

The following changes since commit a1755db71e34df016ffc10aa0727360aae2c6036:

  Merge tag 'pull-block-2022-04-25' of https://gitlab.com/hreitz/qemu into 
staging (2022-04-25 13:35:41 -0700)

are available in the Git repository at:

  https://gitlab.com/rth7680/qemu.git tags/pull-nios2-20220426

for you to fetch changes up to 7f176c5a0bcb70492f3b158a36311e75f1eb87d7:

  tests/tcg/nios2: Add test-shadow-1 (2022-04-26 08:17:10 -0700)

----------------------------------------------------------------
Fix nios2-linux-user syscalls.
Fix nios2-linux-user sigreturn.
Enable tests for nios2-linux-user.
Remove special handling of SIGSEGV.
Check supervisor for eret, bret.
Split special registers out of env->regs[].
Clean up interrupt processing.
Raise unaligned data and destination exceptions.
Set TLBMISC fields correctly on exceptions.
Prevent writes to read-only or reserved control fields.
Use tcg_constant_tl().
Implement shadow register sets.
Implement external interrupt controller interface.
Implement vectored interrupt controller.
Enable semihosting tests for nios2-softmmu.

----------------------------------------------------------------
Amir Gonnen (5):
      target/nios2: Check supervisor on eret
      target/nios2: Add NUM_GP_REGS and NUM_CP_REGS
      target/nios2: Split out helper for eret instruction
      hw/intc: Vectored Interrupt Controller (VIC)
      hw/nios2: Machine with a Vectored Interrupt Controller

Richard Henderson (63):
      linux-user/nios2: Hoist pc advance to the top of EXCP_TRAP
      linux-user/nios2: Fix clone child return
      linux-user/nios2: Drop syscall 0 "workaround"
      linux-user/nios2: Adjust error return
      linux-user/nios2: Handle special qemu syscall return values
      linux-user/nios2: Remove do_sigreturn
      linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturn
      tests/tcg/nios2: Re-enable linux-user tests
      target/nios2: Remove user-only nios2_cpu_do_interrupt
      target/nios2: Remove nios2_cpu_record_sigsegv
      target/nios2: Build helper.c for system only
      linux-user/nios2: Use force_sig_fault for EXCP_DEBUG
      target/nios2: Stop generating code if gen_check_supervisor fails
      target/nios2: Split PC out of env->regs[]
      target/nios2: Fix BRET instruction
      target/nios2: Do not create TCGv for control registers
      linux-user/nios2: Only initialize SP and PC in target_cpu_copy_regs
      target/nios2: Remove cpu_interrupts_enabled
      target/nios2: Split control registers away from general registers
      target/nios2: Clean up nios2_cpu_dump_state
      target/nios2: Use hw/registerfields.h for CR_STATUS fields
      target/nios2: Use hw/registerfields.h for CR_EXCEPTION fields
      target/nios2: Use hw/registerfields.h for CR_TLBADDR fields
      target/nios2: Use hw/registerfields.h for CR_TLBACC fields
      target/nios2: Rename CR_TLBMISC_WR to CR_TLBMISC_WE
      target/nios2: Use hw/registerfields.h for CR_TLBMISC fields
      target/nios2: Move R_FOO and CR_BAR into enumerations
      target/nios2: Create EXCP_SEMIHOST for semi-hosting
      target/nios2: Clean up nios2_cpu_do_interrupt
      target/nios2: Hoist CPU_LOG_INT logging
      target/nios2: Handle EXCP_UNALIGN and EXCP_UNALIGND
      target/nios2: Cleanup set of CR_EXCEPTION for do_interrupt
      target/nios2: Clean up handling of tlbmisc in do_exception
      target/nios2: Prevent writes to read-only or reserved control fields
      target/nios2: Implement cpuid
      target/nios2: Implement CR_STATUS.RSIE
      target/nios2: Remove CPU_INTERRUPT_NMI
      target/nios2: Support division error exception
      target/nios2: Use tcg_constant_tl
      target/nios2: Split out named structs for [IRJ]_TYPE
      target/nios2: Split out helpers for gen_i_cmpxx
      target/nios2: Split out helpers for gen_i_math_logic
      target/nios2: Split out helpers for gen_r_math_logic
      target/nios2: Split out helpers for gen_rr_mul_high
      target/nios2: Split out helpers for gen_rr_shift
      target/nios2: Introduce dest_gpr
      target/nios2: Drop CR_STATUS_EH from tb->flags
      target/nios2: Enable unaligned traps for system mode
      target/nios2: Create gen_jumpr
      target/nios2: Hoist set of is_jmp into gen_goto_tb
      target/nios2: Use gen_goto_tb for DISAS_TOO_MANY
      target/nios2: Use tcg_gen_lookup_and_goto_ptr
      target/nios2: Implement Misaligned destination exception
      target/nios2: Introduce shadow register sets
      target/nios2: Implement rdprs, wrprs
      target/nios2: Update helper_eret for shadow registers
      target/nios2: Implement EIC interrupt processing
      target/nios2: Advance pc when raising exceptions
      linux-user/nios2: Handle various SIGILL exceptions
      hw/nios2: Introduce Nios2MachineState
      hw/nios2: Move memory regions into Nios2Machine
      tests/tcg/nios2: Add semihosting multiarch tests
      tests/tcg/nios2: Add test-shadow-1

 configs/targets/nios2-softmmu.mak       |   1 +
 include/hw/intc/nios2_vic.h             |  64 +++
 linux-user/nios2/target_cpu.h           |   1 +
 target/nios2/cpu.h                      | 250 +++++++----
 target/nios2/helper.h                   |   5 +
 tests/tcg/nios2/semicall.h              |  28 ++
 hw/intc/nios2_vic.c                     | 313 +++++++++++++
 hw/nios2/10m50_devboard.c               | 115 +++--
 linux-user/elfload.c                    |   3 +-
 linux-user/nios2/cpu_loop.c             |  96 ++--
 linux-user/nios2/signal.c               |  25 +-
 target/nios2/cpu.c                      | 213 +++++++--
 target/nios2/helper.c                   | 383 +++++++++-------
 target/nios2/mmu.c                      |  78 ++--
 target/nios2/op_helper.c                |  88 ++++
 target/nios2/translate.c                | 749 ++++++++++++++++++++------------
 hw/intc/Kconfig                         |   3 +
 hw/intc/meson.build                     |   1 +
 hw/nios2/Kconfig                        |   1 +
 target/nios2/meson.build                |   7 +-
 tests/tcg/nios2/10m50-ghrd.ld           |  66 +++
 tests/tcg/nios2/Makefile.softmmu-target |  33 ++
 tests/tcg/nios2/Makefile.target         |  11 -
 tests/tcg/nios2/boot.S                  | 218 ++++++++++
 tests/tcg/nios2/intr.S                  |  31 ++
 tests/tcg/nios2/test-shadow-1.S         |  40 ++
 26 files changed, 2113 insertions(+), 710 deletions(-)
 create mode 100644 include/hw/intc/nios2_vic.h
 create mode 100644 tests/tcg/nios2/semicall.h
 create mode 100644 hw/intc/nios2_vic.c
 create mode 100644 tests/tcg/nios2/10m50-ghrd.ld
 create mode 100644 tests/tcg/nios2/Makefile.softmmu-target
 delete mode 100644 tests/tcg/nios2/Makefile.target
 create mode 100644 tests/tcg/nios2/boot.S
 create mode 100644 tests/tcg/nios2/intr.S
 create mode 100644 tests/tcg/nios2/test-shadow-1.S



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