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# 8 9cpu RISCV 10 11makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols 12makeoptions WITH_CTF=1 # Run ctfconvert(1) for DTrace support 13 14options PRINTF_BUFR_SIZE=128 # Prevent printf output being interspersed. 15options KDTRACE_FRAME # Ensure frames are compiled in 16options KDTRACE_HOOKS # Kernel DTrace hooks 17options DDB_CTF # Kernel ELF linker loads CTF data 18options RACCT_DEFAULT_TO_DISABLED # Set kern.racct.enable=0 by default 19 20# RISC-V SBI console 21device rcons 22 23# pseudo devices 24device clk 25device hwreset 26device phy 27device regulator 28device syscon 29device syscon_power 30device riscv_syscon 31 32# Backlight subsystem 33device backlight 34 35# VirtIO support 36device virtio # Generic VirtIO bus (required) 37device virtio_pci # VirtIO PCI device 38device vtnet # VirtIO Ethernet device 39device virtio_blk # VirtIO Block device 40device virtio_mmio # VirtIO MMIO bus 41device virtio_random # VirtIO Entropy device 42 43# NVM Express (NVMe) support 44device nvme # base NVMe driver 45options NVME_USE_NVD=0 # prefer the cam(4) based nda(4) driver 46device nvd # expose NVMe namespaces as disks, depends on nvme 47 48# NOTE: dtrace introduces CDDL-licensed components into the kernel 49device dtrace # dtrace core 50device dtraceall # include all dtrace modules 51 52# Serial (COM) ports 53device uart_lowrisc # lowRISC UART driver 54device uart_ns8250 # ns8250-type UART driver 55 56# RTC 57device da9063_rtc # Dialog Semiconductor DA9063 RTC 58device goldfish_rtc # QEMU RTC 59 60# Ethernet drivers 61device xae # Xilinx AXI Ethernet MAC 62 63# DMA support 64device xdma # DMA interface 65device axidma # Xilinx AXI DMA Controller 66 67# SPI 68device xilinx_spi # Xilinx AXI Quad-SPI Controller 69 70# Power management controllers 71device da9063_pmic # Dialog Semiconductor DA9063 PMIC 72 73# SiFive device drivers 74device fe310aon 75device fu740_pci_dw 76device sifive_gpio 77device sifive_spi 78files "../sifive/files.sifive" 79 80# Flattened Device Tree 81options FDT 82makeoptions MODULES_EXTRA+="dtb/sifive" 83 84# FreeBSD/riscv didn't exist for these releases 85nooptions COMPAT_FREEBSD4 86nooptions COMPAT_FREEBSD5 87nooptions COMPAT_FREEBSD6 88nooptions COMPAT_FREEBSD7 89nooptions COMPAT_FREEBSD9 90nooptions COMPAT_FREEBSD10 91nooptions COMPAT_FREEBSD11 92 93# riscv doesn't support inb/outb, so disable chipset probing which needs it 94nooptions PPC_PROBE_CHIPSET 95 96# Makes assumptions about bus tags that aren't true on riscv 97nodevice snd_cmi 98 99# Don't yet have hwpmc(4) 100nodevice hwpmc 101nooptions HWPMC_HOOKS 102 103# riscv doesn't yet have atomic_testandset_int and atomic_testandclear_int. 104nodevice ccr 105nodevice cxgbe 106nodevice cxgbev 107