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d5d776c16b
Add a new option, SKYEYE_WORKAROUNDS, which as the name suggests adds workarounds for things skyeye doesn't simulate. Specifically : - Use USART0 instead of DBGU as the console, make it not use DMA, and manually provoke an interrupt when we're done in the transmit function. - Skyeye maintains an internal counter for clock, but apparently there's no way to access it, so hack the timecounter code to return a value which is increased at every clock interrupts. This is gross, but I didn't find a better way to implement timecounters without hacking Skyeye to get the counter value. - Force the write-back of PTEs once we're done writing them, even if they are supposed to be write-through. I don't know why I have to do that.
91 lines
3.2 KiB
Plaintext
91 lines
3.2 KiB
Plaintext
# SKYEYE -- Kernel configuration for running the skyeye simulator
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# simulating the Atmel AT91RM9200.
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check first
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# in NOTES.
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#
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# $FreeBSD$
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machine arm
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ident KB920X
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options KERNPHYSADDR=0xc0000000
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options KERNVIRTADDR=0xc0000000
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options PHYSADDR=0xc0000000
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include "../at91/std.kb920x"
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#To statically compile in device wiring instead of /boot/device.hints
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#hints "GENERIC.hints" #Default places to look for devices.
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makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
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makeoptions CONF_CFLAGS=-mcpu=arm9
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options DDB
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options KDB
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options SCHED_4BSD #4BSD scheduler
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options INET #InterNETworking
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options INET6 #IPv6 communications protocols
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options FFS #Berkeley Fast Filesystem
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options SOFTUPDATES #Enable FFS soft updates support
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options UFS_ACL #Support for access control lists
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options UFS_DIRHASH #Improve performance on big directories
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options MD_ROOT #MD is a potential root device
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options MD_ROOT_SIZE=4096
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options ROOTDEVNAME=\"ufs:md0\"
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options NFSCLIENT #Network Filesystem Client
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options NFSSERVER #Network Filesystem Server
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options NFS_ROOT #NFS usable as /, requires NFSCLIENT
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#options MSDOSFS #MSDOS Filesystem
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options CD9660 #ISO 9660 Filesystem
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#options PROCFS #Process filesystem (requires PSEUDOFS)
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options PSEUDOFS #Pseudo-filesystem framework
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options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
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options SCSI_DELAY=5000 #Delay (in ms) before probing SCSI
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#options KTRACE #ktrace(1) support
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options SYSVSHM #SYSV-style shared memory
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options SYSVMSG #SYSV-style message queues
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options SYSVSEM #SYSV-style semaphores
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options _KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
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options KBD_INSTALL_CDEV # install a CDEV entry in /dev
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device genclock
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device loop
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device ether
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device nexus
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#device saarm
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device rl
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device uart
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#options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
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# output. Adds ~128k to driver.
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#options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
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# output. Adds ~215k to driver.
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# Debugging for use in -current
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#options INVARIANTS #Enable calls of extra sanity checking
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#options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
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#options WITNESS #Enable checks to detect deadlocks and cycles
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#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
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# To make an SMP kernel, the next two are needed
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#options SMP # Symmetric MultiProcessor Kernel
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#options APIC_IO # Symmetric (APIC) I/O
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device mem # Memory and kernel memory devices
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device md
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options SKYEYE_WORKAROUNDS
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options ARM32_NEW_VM_LAYOUT
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# Floppy drives
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