1# 2# NOTES -- Lines that can be cut/pasted into kernel and hints configs. 3# 4# This file contains machine dependent kernel configuration notes. For 5# machine independent notes, look in /sys/conf/NOTES. 6# 7# $FreeBSD$ 8# 9 10cpu RISCV 11 12makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 13makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 14 15options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 16options KDTRACE_FRAME # Ensure frames are compiled in 17options KDTRACE_HOOKS # Kernel DTrace hooks 18options DDB_CTF # Kernel ELF linker loads CTF data 19options FPE # Floating-point extension support 20options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default 21options INTRNG # Include INTRNG framework 22 23options PPS_SYNC 24 25# RISC-V SBI console 26device rcons 27 28# EXT_RESOURCES pseudo devices 29options EXT_RESOURCES 30device clk 31device hwreset 32device phy 33device regulator 34device syscon 35device syscon_power 36device riscv_syscon 37 38# Backlight subsystem 39device backlight 40 41# VirtIO support 42device virtio # Generic VirtIO bus (required) 43device virtio_pci # VirtIO PCI device 44device vtnet # VirtIO Ethernet device 45device virtio_blk # VirtIO Block device 46device virtio_mmio # VirtIO MMIO bus 47device virtio_random # VirtIO Entropy device 48 49# NVM Express (NVMe) support 50device nvme # base NVMe driver 51options NVME_USE_NVD=0 # prefer the cam(4) based nda(4) driver 52device nvd # expose NVMe namespaces as disks, depends on nvme 53 54# NOTE: dtrace introduces CDDL-licensed components into the kernel 55device dtrace # dtrace core 56device dtraceall # include all dtrace modules 57 58# Serial (COM) ports 59device uart_lowrisc # lowRISC UART driver 60device uart_ns8250 # ns8250-type UART driver 61 62# RTC 63device goldfish_rtc # QEMU RTC 64 65# Ethernet drivers 66device xae # Xilinx AXI Ethernet MAC 67 68# DMA support 69device xdma # DMA interface 70device axidma # Xilinx AXI DMA Controller 71 72# SPI 73device xilinx_spi # Xilinx AXI Quad-SPI Controller 74 75# SiFive device drivers 76device fe310aon 77device fu740_pci_dw 78device sifive_gpio 79device sifive_spi 80files "../sifive/files.sifive" 81 82# Flattened Device Tree 83options FDT 84makeoptions MODULES_EXTRA+="dtb/sifive" 85 86# FreeBSD/riscv didn't exist for these releases 87nooptions COMPAT_FREEBSD4 88nooptions COMPAT_FREEBSD5 89nooptions COMPAT_FREEBSD6 90nooptions COMPAT_FREEBSD7 91nooptions COMPAT_FREEBSD9 92nooptions COMPAT_FREEBSD10 93nooptions COMPAT_FREEBSD11 94 95# No support for remote GDB 96nooptions GDB 97 98# riscv doesn't support inb/outb, so disable chipset probing which needs it 99nooptions PPC_PROBE_CHIPSET 100 101# Makes assumptions about bus tags that aren't true on riscv 102nodevice snd_cmi 103 104# Don't yet have hwpmc(4) 105nodevice hwpmc 106nooptions HWPMC_HOOKS 107