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[v5,00/48] target/nios2: Shadow register set, EIC and VIC

Message ID 20220310112725.570053-1-richard.henderson@linaro.org
Headers show
Series target/nios2: Shadow register set, EIC and VIC | expand

Message

Richard Henderson March 10, 2022, 11:26 a.m. UTC 
This has grown quite beyond merely implementing $SUBJECT,
which are only the last 8 patches of the set.

Version 5 addresses all of the feedback from v4, fixes some
further bugs in the base exception handling, implements
some missing exceptions.


r~


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 (43):
  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: Do not zero the general registers on reset
  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_UALIGND
  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: 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
  linux-user/nios2: Handle various SIGILL exceptions
  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
  hw/nios2: Introduce Nios2MachineState
  hw/nios2: Move memory regions into Nios2Machine

 configs/targets/nios2-softmmu.mak |   1 +
 include/hw/intc/nios2_vic.h       |  64 ++++
 target/nios2/cpu.h                | 239 +++++++++-----
 target/nios2/helper.h             |   5 +
 hw/intc/nios2_vic.c               | 313 ++++++++++++++++++
 hw/nios2/10m50_devboard.c         | 115 +++++--
 linux-user/elfload.c              |   3 +-
 linux-user/nios2/cpu_loop.c       |  57 ++--
 linux-user/nios2/signal.c         |   6 +-
 target/nios2/cpu.c                | 202 +++++++++---
 target/nios2/helper.c             | 358 +++++++++++++--------
 target/nios2/mmu.c                |  78 ++---
 target/nios2/op_helper.c          |  67 ++++
 target/nios2/translate.c          | 519 ++++++++++++++++++------------
 hw/intc/Kconfig                   |   3 +
 hw/intc/meson.build               |   1 +
 hw/nios2/Kconfig                  |   1 +
 17 files changed, 1466 insertions(+), 566 deletions(-)
 create mode 100644 include/hw/intc/nios2_vic.h
 create mode 100644 hw/intc/nios2_vic.c