# Source: https://github.com/lowRISC/mocha/blob/b5973217f704923917e7761f73df7dfcb8d0c345/doc/img/mocha.d2
# License: Apache-2.0; see REAL_WORLD.md.
# SPDX-FileCopyrightText: lowRISC Contributors (COSMIC project).

# Global settings
vars: {
  d2-config: {
    layout-engine: elk
    theme-id: 7
  }
}

dram: |md
  #### DRAM

  1 GiB of DDR3
|
dram.shape: rectangle
dram.style.stroke-dash: 3

Mocha: {
  # Processor arriane.sv includes just cva6.sv
  CVA6-CHERI: {
    # csr_regfile
    # CSR regfile
    # perf_counters
    # Performance counters
    # Controller
    # Tracing: {
    #    # instr_tracer
    #    Instruction tracer
    #    # cva6_rvfi_probes
    #    RVFI probes
    # }
    Frontend
    # id_stage
    ID stage
    # issue_stage
    Issue stage
    # ex_stage
    EX stage
    # commit_stage
    Commit stage
    # cache_subsystem
    Cache subsystem

    # memory
    Frontend <- Cache subsystem
    EX stage <-> Cache subsystem
  }

  axi: |md
    #### AXI crossbar

    64-bit width
  |
  axi.shape: rectangle

  tlul: |md
    #### TileLink crossbar

    32-bit width
  |
  tlul.shape: rectangle
  # Uncached
  tlul.style.fill: hotpink
  # Tag oblivious
  tlul.style.stroke-dash: 3

  CVA6-CHERI.Cache subsystem <-> axi
  CVA6-CHERI.Cache subsystem <-> tlul
  axi <-> Tag control
  axi <-> Debug
  Debug.style.fill: hotpink
  axi <-> SRAM
  SRAM.style.fill: hotpink
  axi <-> Mailbox
  Mailbox.style.fill: hotpink
  Mailbox.style.stroke-dash: 3

  Peripherals: {
    rom: |md
      #### ROM

      32 KiB
    |
    rom.shape: rectangle
    rom.style.fill: lightpink
    rom.style.stroke-dash: 3
    entropy: |md
      #### Entropy

      Source
    |
    entropy.shape: rectangle
    entropy.style.fill: lightpink
    entropy.style.stroke-dash: 3
    kmac: |md
      #### KMAC

      SHA3
    |
    kmac.shape: rectangle
    kmac.style.fill: lightpink
    kmac.style.stroke-dash: 3
    PLIC
    PLIC.style.fill: lightpink
    PLIC.style.stroke-dash: 3
    Timer
    Timer.style.fill: lightpink
    Timer.style.stroke-dash: 3
    GPIO
    GPIO.style.fill: lightpink
    GPIO.style.stroke-dash: 3
    I2C
    I2C.style.fill: lightpink
    I2C.style.stroke-dash: 3
    spi_dev: |md
      #### SPI

      Device
    |
    spi_dev.shape: rectangle
    spi_dev.style.fill: lightpink
    spi_dev.style.stroke-dash: 3
    spi_host: |md
      #### SPI

      Host
    |
    spi_host.shape: rectangle
    spi_host.style.fill: lightpink
    spi_host.style.stroke-dash: 3
    UART
    UART.style.fill: lightpink
    UART.style.stroke-dash: 3
    managers: |md
      #### Managers

      - Clock
      - Reset
      - Power
    |
    managers.shape: rectangle
    managers.style.fill: lightpink
    managers.style.stroke-dash: 3
  }
  # Uncached
  Peripherals.style.fill: hotpink
  # Tag oblivious
  Peripherals.style.stroke-dash: 3

  tlul <-> Peripherals
}

chip: |md
  #### Rest of chip

  64-bit bus
|
chip.shape: rectangle
chip.style.fill: hotpink
chip.style.stroke-dash: 3

Mocha.Peripherals.spi_host <-> Flash
Flash.style.fill: hotpink
Flash.style.stroke-dash: 3

# External interfaces
Mocha.Tag control <-> dram
Mocha.axi <-> chip
Mocha.Mailbox <-> chip
Mocha.Peripherals.I2C <-> I2C
I2C.style.fill: hotpink
I2C.style.stroke-dash: 3
Mocha.Peripherals.spi_dev <-> SPI
SPI.style.fill: hotpink
SPI.style.stroke-dash: 3
Mocha.Peripherals.UART <-> UART
UART.style.fill: hotpink
UART.style.stroke-dash: 3
Mocha.Peripherals.GPIO <-> GPIO
GPIO.style.fill: hotpink
GPIO.style.stroke-dash: 3

# Legend
Legend: {
  Cached
  Uncached
  Tag aware
  Tag oblivious
  Uncached.style.fill: hotpink
  Tag aware.style.fill: transparent
  Tag oblivious.style.fill: transparent
  Tag oblivious.style.stroke-dash: 3
}
Legend <-> Mocha.CVA6-CHERI: {
  style: {
    stroke: transparent
  }
}
Legend.style.fill: transparent

# Set global font size
*.style.font-size: 50
*.*.style.font-size: 50
*.*.*.style.font-size: 40

# Set global stroke width
*.style.stroke-width: 5
*.*.style.stroke-width: 5
*.*.*.style.stroke-width: 5

# Set global stroke color
*.style.stroke: black
*.*.style.stroke: black
*.*.*.style.stroke: black

# Global overrides
Mocha.style.stroke: transparent
Legend.style.stroke: transparent
Legend.Cached.style.stroke-width: 0
Legend.Uncached.style.stroke-width: 0