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 23# RISC-V SBI console 24device rcons 25 26# pseudo devices 27device clk 28device hwreset 29device phy 30device regulator 31device syscon 32device syscon_power 33device riscv_syscon 34 35# Backlight subsystem 36device backlight 37 38# VirtIO support 39device virtio # Generic VirtIO bus (required) 40device virtio_pci # VirtIO PCI device 41device vtnet # VirtIO Ethernet device 42device virtio_blk # VirtIO Block device 43device virtio_mmio # VirtIO MMIO bus 44device virtio_random # VirtIO Entropy device 45 46# NVM Express (NVMe) support 47device nvme # base NVMe driver 48options NVME_USE_NVD=0 # prefer the cam(4) based nda(4) driver 49device nvd # expose NVMe namespaces as disks, depends on nvme 50 51# NOTE: dtrace introduces CDDL-licensed components into the kernel 52device dtrace # dtrace core 53device dtraceall # include all dtrace modules 54 55# Serial (COM) ports 56device uart_lowrisc # lowRISC UART driver 57device uart_ns8250 # ns8250-type UART driver 58 59# RTC 60device goldfish_rtc # QEMU RTC 61 62# Ethernet drivers 63device xae # Xilinx AXI Ethernet MAC 64 65# DMA support 66device xdma # DMA interface 67device axidma # Xilinx AXI DMA Controller 68 69# SPI 70device xilinx_spi # Xilinx AXI Quad-SPI Controller 71 72# SiFive device drivers 73device fe310aon 74device fu740_pci_dw 75device sifive_gpio 76device sifive_spi 77files "../sifive/files.sifive" 78 79# Flattened Device Tree 80options FDT 81makeoptions MODULES_EXTRA+="dtb/sifive" 82 83# FreeBSD/riscv didn't exist for these releases 84nooptions COMPAT_FREEBSD4 85nooptions COMPAT_FREEBSD5 86nooptions COMPAT_FREEBSD6 87nooptions COMPAT_FREEBSD7 88nooptions COMPAT_FREEBSD9 89nooptions COMPAT_FREEBSD10 90nooptions COMPAT_FREEBSD11 91 92# riscv doesn't support inb/outb, so disable chipset probing which needs it 93nooptions PPC_PROBE_CHIPSET 94 95# Makes assumptions about bus tags that aren't true on riscv 96nodevice snd_cmi 97 98# Don't yet have hwpmc(4) 99nodevice hwpmc 100nooptions HWPMC_HOOKS 101 102# riscv doesn't yet have atomic_testandset_int and atomic_testandclear_int. 103nodevice ccr 104nodevice cxgbe 105nodevice cxgbev 106