Hi Amir,
I've done a bunch of cleanup which Peter and I had recommended
during review. The major bits are:
* Note reserved bits of control registers, which may include
the entire control register.
* Complete conversion to registerfields.h.
* Use pointer to shadow register set, akin to Sparc windows.
* Use -M 10m50-ghrd,vic=on to enable VIC.
I can test this to a point, but not the final result.
It works to a point with our existing nios2 kernels,
but of course no interrupts are received. So it verifies
that something changes, and that the init doesn't crash,
but that's about it.
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 (28):
target/nios2: Stop generating code if gen_check_supervisor fails
target/nios2: Split PC out of env->regs[]
target/nios2: Do not create TCGv for control registers
linux-user/nios2: Trim target_pc_regs to sp and pc
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: Use hw/registerfields.h for CR_TLBMISC fields
target/nios2: Move R_FOO and CR_BAR into enumerations
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: Use tcg_constant_tl
target/nios2: Introduce dest_gpr
target/nios2: Drop CR_STATUS_EH from tb->flags
target/nios2: Introduce shadow register sets
target/nios2: Implement rdprs, wrprs
target/nios2: Update helper_eret for shadow registers
target/nios2: Create EXCP_SEMIHOST for semi-hosting
target/nios2: Clean up nios2_cpu_do_interrupt
target/nios2: Implement EIC interrupt processing
hw/nios2: Introduce Nios2MachineState
hw/nios2: Move memory regions into Nios2Machine
linux-user/nios2/target_syscall.h | 25 +-
target/nios2/cpu.h | 253 ++++++++++++------
target/nios2/helper.h | 3 +
hw/intc/nios2_vic.c | 341 ++++++++++++++++++++++++
hw/nios2/10m50_devboard.c | 118 +++++++--
hw/nios2/boot.c | 8 +-
linux-user/elfload.c | 5 +-
linux-user/nios2/cpu_loop.c | 39 +--
linux-user/nios2/signal.c | 6 +-
target/nios2/cpu.c | 194 +++++++++++---
target/nios2/helper.c | 218 +++++++--------
target/nios2/mmu.c | 73 +++---
target/nios2/nios2-semi.c | 13 +-
target/nios2/op_helper.c | 39 +++
target/nios2/translate.c | 422 +++++++++++++++++++-----------
hw/intc/Kconfig | 3 +
hw/intc/meson.build | 1 +
hw/nios2/Kconfig | 1 +
18 files changed, 1223 insertions(+), 539 deletions(-)
create mode 100644 hw/intc/nios2_vic.c
--
2.25.1