Commit Graph

46 Commits

Author SHA1 Message Date
Ruslan Bukin
33cf9122f3 Add SMP support for BERI CPU.
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
2018-04-12 17:43:19 +00:00
Pedro F. Giffuni
19d3b47b92 sys/mips: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:07:26 +00:00
Brooks Davis
114aedb30e Remove a couple variables that are unused after r325790.
Reported by:	rpokala
2017-11-20 22:18:24 +00:00
Justin Hibbits
ce7fd13aff Convert BERI to use ofw_parse_bootargs()
Summary:
ofw_parse_bootargs() was added in r306065 as an attempt to unify the
various copies of the same code.  This simply migrates BERI to use it.

Reviewed By: brooks
Differential Revision: https://reviews.freebsd.org/D12962
2017-11-14 03:23:46 +00:00
Ruslan Bukin
31cfa79fab Switch BERI Programmable Interrupt Controller to INTRNG.
Sponsored by:	DARPA, AFRL
2017-04-18 17:20:03 +00:00
Justin Hibbits
f8fd3fb518 Fix the resource_list_print_type() calls to use uintmax_t.
Missed a bunch from r297000.
2016-03-22 22:25:08 +00:00
Andrew Turner
9636600cf2 Make the memory size returned from fdt_get_mem_regions a 64-bit type. This
is the physical memory size so may be larger than a u_long can hold, e.g.
on ARM with LPAE we could see an address space of up to 40 bits. On ARM
u_long is only 32 bits so the memory size will be truncated, possibly to
zero.

Reported by:	bz
Sponsored by:	ABT Systems Ltd
2016-03-01 11:39:07 +00:00
Wojciech Macek
e571e15cb0 Fix fdt_get_mem_regions() to work with 64-bit addresses
Use u_long instead of uint32_t variables to avoid overflow
    in case of PA space bigger than 32-bit.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Approved by:           cognet (mentor)
Reviewed by:           andrew, br, wma
Differential revision: https://reviews.freebsd.org/D5393
2016-02-29 09:22:39 +00:00
Justin Hibbits
7915adb560 Introduce a RMAN_IS_DEFAULT_RANGE() macro, and use it.
This simplifies checking for default resource range for bus_alloc_resource(),
and improves readability.

This is part of, and related to, the migration of rman_res_t from u_long to
uintmax_t.

Discussed with:	jhb
Suggested by:	marcel
2016-02-20 01:32:58 +00:00
Justin Hibbits
2dd1bdf183 Convert rman to use rman_res_t instead of u_long
Summary:
Migrate to using the semi-opaque type rman_res_t to specify rman resources.  For
now, this is still compatible with u_long.

This is step one in migrating rman to use uintmax_t for resources instead of
u_long.

Going forward, this could feasibly be used to specify architecture-specific
definitions of resource ranges, rather than baking a specific integer type into
the API.

This change has been broken out to facilitate MFC'ing drivers back to 10 without
breaking ABI.

Reviewed By: jhb
Sponsored by:	Alex Perez/Inertial Computing
Differential Revision: https://reviews.freebsd.org/D5075
2016-01-27 02:23:54 +00:00
Ian Lepore
69dcb7e771 Make the 'env' directive described in config(5) work on all architectures,
providing compiled-in static environment data that is used instead of any
data passed in from a boot loader.

Previously 'env' worked only on i386 and arm xscale systems, because it
required the MD startup code to examine the global envmode variable and
decide whether to use static_env or an environment obtained from the boot
loader, and set the global kern_envp accordingly.  Most startup code wasn't
doing so.  Making things even more complex, some mips startup code uses an
alternate scheme that involves calling init_static_kenv() to pass an empty
buffer and its size, then uses a series of kern_setenv() calls to populate
that buffer.

Now all MD startup code calls init_static_kenv(), and that routine provides
a single point where envmode is checked and the decision is made whether to
use the compiled-in static_kenv or the values provided by the MD code.

The routine also continues to serve its original purpose for mips; if a
non-zero buffer size is passed the routine installs the empty buffer ready
to accept kern_setenv() values.  Now if the size is zero, the provided buffer
full of existing env data is installed.  A NULL pointer can be passed if the
boot loader provides no env data; this allows the static env to be installed
if envmode is set to do so.

Most of the work here is a near-mechanical change to call the init function
instead of directly setting kern_envp.  A notable exception is in xen/pv.c;
that code was originally installing a buffer full of preformatted env data
along with its non-zero size (like mips code does), which would have allowed
kern_setenv() calls to wipe out the preformatted data.  Now it passes a zero
for the size so that the buffer of data it installs is treated as
non-writeable.
2016-01-02 02:53:48 +00:00
Roger Pau Monné
e8234cfef6 preload_search_info: make sure mod is set
Add a check to preload_search_info to make sure mod is set. Most of the
callers of preload_search_info don't check that the mod parameter is
set, which can cause page faults. While at it, remove some now unnecessary
checks before calling preload_search_info.

Sponsored by:		Citrix Systems R&D
Reviewed by:		kib
Differential Revision:	https://reviews.freebsd.org/D3440
2015-08-21 15:57:57 +00:00
Ruslan Bukin
a8c5ea04b4 Provide the number of interrupt resources added to the list
by using extra argument, so caller will know that.
2015-05-15 13:55:18 +00:00
Ruslan Bukin
ac4203e2ab Correct the end address of the memory regions.
Pointed out by:	ian
2014-12-19 12:09:29 +00:00
Ruslan Bukin
49506d6809 Add configuration files for BERI soft-core synthesized on
Terasic SoCKit board (Altera FPGA).

Use virtio block as root filesystem device.

Sponsored by:	DARPA, AFRL
2014-12-17 11:36:31 +00:00
Ruslan Bukin
e2d5f675a0 Use memory regions information provided in FDT.
Reviewed by:	brooks
Sponsored by:	DARPA, AFRL
2014-12-17 09:34:54 +00:00
Brooks Davis
a9332fb303 Merge from CheriBSD:
commit 6d3c4c0922
    Add terasic_mtl vt(4) framebuffer driver

    terasic_mtl can be built with syscons(4) and vt(4) attachments, selected
    at compile time.

commit 33240259b4
    Clear terasic_mtl text buffer on attach

commit d188c2d241
    Update terasic vt(4) driver for FreeBSD r269783

commit d1cc54eee8
    Safety belt to ensure vt(4) fb parameters are correct

commit 76e6d468ef
    Improve terasic_mtl_vt fdt parsing

    - Use OF_getencprop to avoid need for explicit endian handling
      (submitted by ray@freebsd.org)
    - Check for expected length and correct pointer type

commit 3e2524b899
    Correct device_printf usage

commit 9e53e3c8e0
    Switch framebuffer to match host endianness

    Xorg and xf86-video-scfb work much better with a native-endian
    framebuffer.

commit 0f49259d59
    Switch DE4 to vt(4) and enable kbdmux

commit 5bc96ebc89
    Add missing \n in device_printf calls

Submitted by:	emaste
Sponsored by:	DARPA, AFRL
2014-11-21 21:34:19 +00:00
Davide Italiano
d9ca757cea Convert remaining {g,s}etenv->kern_{g,s}etenv
left over from r273174.

Reported by:    bz
2014-10-17 17:34:05 +00:00
Ian Lepore
c47d4cde39 Replace multiple nearly-identical copies of code to walk through an FDT
node's interrupts=<...> property creating resource list entries with a
single common implementation.  This change makes ofw_bus_intr_to_rl() the
one true copy of that code and removes the copies of it from other places.

This also adds handling of the interrupts-extended property, which allows
specifying multiple interrupts for a node where each interrupt can have a
separate interrupt-parent.  The bindings for this state that the property
cells contain an xref phandle to the interrupt parent followed by whatever
interrupt info that parent normally expects.  This leads to having a
variable number of icells per interrupt in the property.  For example you
could have <&intc1 1 &intc2 26 9 0 &intc3 9 4>.

Differential Revision: https://reviews.freebsd.org/D803
2014-09-25 15:02:33 +00:00
Ian Lepore
752ba93078 Rename OF_xref_phandle() to OF_node_from_xref() and add a new function
that provides the inverse translation, OF_xref_from_node().

Discussed with:	nwhitehorn
2014-09-01 18:51:01 +00:00
Bjoern A. Zeeb
27caa49f0b After r264897 restore the ability to add bootoptions from FDT for
platforms which do not use loaders or kernels that want to hardcode
options or for FDT passed in by loader.

Also fix a build issue by putting the kmdp variable accessed back under
the #ifdef FDT;  we may wish to revisit decision in which case more
code needs changing.

Submitted by:	brooks
2014-04-29 07:48:07 +00:00
Brooks Davis
e13aabb24f Fix beri_simplebus probing. It's not allowed to have two modules on the
same bus with the same name.

Tweak the description so it's clear the BERI version attached.

Sponsored by:	DARPA, AFRL
2014-04-24 23:28:09 +00:00
Brooks Davis
2ef3c88e4b Merge from CheriBSD:
commit 003649d962
Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk>
Date:   Wed Feb 5 18:32:09 2014 +0000

    Teach the FreeBSD/beri boot to "auto-detect" whether argument 4 (a3) is a
    memory size of pointer to a struct bootinfo * by looking at its value and
    seeing whether it is pointer-like.  If a pointer, assume it's a bootinfo
    and extract memsize from it instead; otherwise, use it as memsize directly.
    This allows kernels to support bootinfo being passed by loader (and boot2)
    while still supporting older Miniboot setups.

commit f7045af9a1
Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk>
Date:   Thu Feb 6 13:45:34 2014 +0000

    When the module metadata pointer is available from loader, use it in the
    kernel.

commit 52e0e1ff2c
Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk>
Date:   Thu Feb 6 19:57:48 2014 +0000

    In the BERI kernel boot code, extract 'boothowto' (which includes boot flags
    such as '-s') and 'envp' from passed module data.  Booting to single-user
    mode using boot flags now works.

Sponsored by:	DARPA, AFRL
2014-04-24 22:28:53 +00:00
Bjoern A. Zeeb
0ef79eac83 Based on xlp_machdep.c and completed the list of options based on
boot/mips/beri/loader/metadata.c allow FDT configuration to set
command line options.
This leads to an interesting quesiton of future interactions with loader.
However for configurations without loader this allows bootverbose or boot
single user to be set by compiling a new kernel, which is good enough for
testing and debugging.

Reviewed by:	rwatson
MFC after:	1 week
2014-04-17 13:02:59 +00:00
Bjoern A. Zeeb
4a9af7d53f Add the initial version of if_nf10bmac(4), a driver to support an
NetFPGA-10G Embedded CPU Ethernet Core.

The current version operates on a simple PIO based interface connected
to a NetFPGA-10G port.

To avoid confusion: this driver operates on a CPU running on the FPGA,
e.g. BERI/mips, and is not suited for the PCI host interface.

MFC after:	1 week
Relnotes:	yes
Sponsored by:	DARPA/AFRL
2014-04-17 12:33:26 +00:00
Nathan Whitehorn
65d08437ef Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on ARM systems easier.
SPARC is unchanged.

Reviewed by:	imp, ian
2014-02-05 14:44:22 +00:00
Ian Lepore
add35ed5b8 Follow r261352 by updating all drivers which are children of simplebus
to check the status property in their probe routines.

Simplebus used to only instantiate its children whose status="okay"
but that was improper behavior, fixed in r261352.  Now that it doesn't
check anymore and probes all its children; the children all have to
do the check because really only the children know how to properly
interpret their status property strings.

Right now all existing drivers only understand "okay" versus something-
that's-not-okay, so they all use the new ofw_bus_status_okay() helper.
2014-02-02 19:17:28 +00:00
Nathan Whitehorn
06763f5e55 Provide a simpler and more standards-compliant simplebus implementation to
get the Routerboard 800 up and running with the vendor device tree. This
does not implement some BERI-specific features (which hopefully won't be
necessary soon), so move the old code to mips/beri, with a higher attach
priority when built, until MIPS interrupt domain support is rearranged.
2014-02-01 17:41:54 +00:00
Bjoern A. Zeeb
369f2ddcb8 Use correct value pointing to previously selected FDT DTB.
Reviewed by:	brooks
Sponsored by:	DARPA, AFRL
MFC after:	1 week
2013-12-12 17:48:33 +00:00
Brooks Davis
9baa380649 Remove a bit of debugging output that slipped into r256911.
MFC after:	3 days
Sponsored by:	DARPA/AFRL
2013-10-22 21:13:02 +00:00
Brooks Davis
f66834b69a MFP4:
Change 228019 by bz@bz_zenith on 2013/04/23 13:55:30

	Add kernel side support for large TLB on BERI/CHERI.
	Modelled similar to NLM

MFC after:	3 days
Sponsored by:	DAPRA/AFRL
2013-10-22 21:08:25 +00:00
Brooks Davis
fdd228fcd6 MFP4: 223121 (PIC portion), 225861, 227822, 229692 (PIC only), 229693,
230523, 1123614

Implement a driver for Robert Norton's PIC as an FDT interrupt
controller. Devices whose interrupt-parent property points to a beripic
device will have their interrupt allocation, activation , and setup
operations routed through the IC rather than down the traditional bus
hierarchy.

This driver largely abstracts the underlying CPU away allowing the
PIC to be implemented on CPU's other than BERI. Due to insufficient
abstractions a small amount of MIPS specific code is currently required
in fdt_mips.c and to implement counters.

MFC after:	3 days
Sponsored by:	DARPA/AFRL
2013-10-22 15:29:59 +00:00
Brooks Davis
f570e9e145 MFP4: 221483, 221567, 221568, 221670, 221677, 221678, 221800, 221801,
221804, 221805, 222004, 222006, 222055, 222820, 1135077, 1135118, 1136259

Add atse(4), a driver for the Altera Triple Speed Ethernet MegaCore.

The current driver support gigabit Ethernet speeds only and works with
the MegaCore only in the internal FIFO configuration in the soon to be
open sourced BERI CPU configuration.

Submitted by:	bz
MFC after:	3 days
Sponsored by:	DARPA/AFRL
2013-10-18 20:44:19 +00:00
Brooks Davis
224d11f577 MFP4:
Change 227630 by bz@bz_zenith on 2013/04/12 08:50:27

	Implement soft reset setting sr in sr and just in case loop
	endlessly afterwards.

MFC after:	3 days
Sponsored by:	DARPA/AFRL
2013-10-18 15:40:37 +00:00
Attilio Rao
590f9303e5 Merge from vmobj-rwlock branch:
Remove unused inclusion of vm/vm_pager.h and vm/vnode_pager.h.

Sponsored by:	EMC / Isilon storage division
Tested by:	pho
Reviewed by:	alc
2013-02-26 01:00:11 +00:00
Robert Watson
1aef4ac1bc Partially merge Perforce changeset 219938 to head:
Write FDT attachment for the Terasic MTL (multitouch LCD) driver.
  Exploit the fact that FDT allows multiple memory ranges to be
  assigned to a device, giving us a cleaner description than
  device.hints does.

Portions of this changeset that remove mtl from BERI device.hints and
add to DTS will be merged separately.

Sponsored by:	DARPA, AFRL
2013-01-13 16:27:56 +00:00
Robert Watson
c4b4976dee Merge Perforce changeset 219922 to head:
Update nexus parts in copied DE4LED attachment to use FDT.

Sponsored by:	DARPA, AFRL
2013-01-13 15:12:35 +00:00
Robert Watson
100bfa3f87 Merge Perforce changeset 219918 to head:
Naive first cut at an FDT bus attachment for the Altera JTAG UART.

Sponsored by:	DARPA, AFRL
2013-01-13 15:08:17 +00:00
Robert Watson
4d19b97f11 Merge Perforce change @219948 to head:
Add code so that the BERI boot process can ask the kernel linker for
  DTB blobs that may have been left for it by the boot loader, as done
  on PowerPC and ARM.  This will require both a more mature boot
  loader, and more mature boot loader argument passing mechanism,
  than currently supported on BERI.

Sponsored by:	DARPA, AFRL
2013-01-12 13:20:21 +00:00
Robert Watson
f73faab74b Merge Perforce change @219935 to head:
Initialise Openfirmware/FDT code earlier in the FreeBSD/beri boot,
  so that the results will be available for configuring the console
  UART (eventually).

  Suggested by:   thompsa

Sponsored by:	DARPA, AFRL
2013-01-12 12:34:59 +00:00
Robert Watson
d8c7c88283 Merge @219932 from Perforce:
FDT headers can't be included if the kernel is compiled without
  FDT support, due to dependence on generated kobj headers.  BERI
  supports both FDT and non-FDT kernels.

  Spotted by:	bz
2013-01-01 19:42:06 +00:00
Robert Watson
9eb71e68fe If FDT is compiled into a FreeBSD/beri kernel, initialise OpenFirmware.
Sponsored by:	DARPA, AFRL
2012-12-31 11:06:37 +00:00
Robert Watson
7b957f4fe7 Add terasic_de4led, a led(4) driver for the on-board 8-element LED on the
Terasic DE-4 board.  Allow LED configuration to be set using loader
tunables, not just from userspace, and preconfigure LED 8 as a kernel
heartbeat.  For now, this is a Nexus-attached, BERI-only driver, but it
could be used with other hard and soft cores on Altera FPGAs as well, in
principle.

Sponsored by:	DARPA, AFRL
2012-08-26 09:21:59 +00:00
Robert Watson
ec5bd1da7d Add terasic_mtl(4), a device driver for the Terasic Multi-Touch LCD,
used with Terasic's DE-4 and other similar FPGA boards.  This display
is 800x480 and includes a capacitive touch screen, multi-touch
gesture recognition, etc.  This device driver depends on a Cambridge-
provided IP core that allows the MTL device to be hooked up to the
Altera Avalon SoC bus, and also provides a VGA-like text frame buffer.

Although it is compiled as a single device driver, it actually
implements a number of different device nodes exporting various
aspects of this multi-function device to userspace:

- Simple memory-mapped driver for the MTL 24-bit pixel frame buffer.
- Simple memory-mapped driver for the MTL control register set.
- Simple memory-mapped driver for the MTL text frame buffer.
- syscons attachment for the MTL text frame buffer.

This driver attaches directly to Nexus as is common for SoC device
drivers, and for the time being is considered BERI-specific, although
in principle it might be used with other hard and soft cores on
Altera FPGAs.

Control registers, including touchscreen input, are simply memory
mapped; in the future it would be desirable to hook up a more
conventional device node that can stream events, support kqueue(2)/
poll(2)/select(2), etc.

This is the first use of syscons on MIPS, as far as I can tell, and
there are some loose ends, such as an inability to use the hardware
cursor.  More fundamentally, it appears that syscons(4) assumes that
either a host is PC-like (i386, amd64) *or* it must be using a
graphical frame buffer.  While the MTL supports a graphical frame
buffer, using the text frame buffer is preferable for console use.
Fixing this issue in syscons(4) requires non-trivial changes, as the
text frame buffer support assumes that direct memory access can be
done to the text frame buffer without using bus accessor methods,
which is not the case on MIPS.  As a workaround for this, we instead
double-buffer and pretend to be a graphical frame buffer exposing
text accessor methods, leading to some quirks in syscons behaviour.

Sponsored by:	DARPA, AFRL
2012-08-25 22:35:29 +00:00
Robert Watson
697a77c1c4 Add altera_jtag_uart(4), a device driver for Altera's JTAG UART soft core,
which presents a UART-like interface over the Avalon bus that can be
addressed over JTAG.  This IP core proves extremely useful, allowing us to
connect trivially to the FreeBSD console over JTAG for FPGA-embedded hard
and soft cores.  As interrupts are optionally configured for this soft
core, we support both interrupt-driven and polled modes of operation,
which must be selected using device.hints.  UART instances appear in /dev
as ttyu0, ttyu1, etc.

However, it also contains a number of quirks, which make it difficult to
tell when JTAG is connected, and some buffering issues.  We work around
these as best we can, using various heuristics.

While the majority of this device driver is not only not BERI-specific,
but also not MIPS-specific, for now add its defines in the BERI files
list, as the console-level parts are aware of where the first JTAG UART
is mapped on Avalon, and contain MIPS-specific address translation, to
use before Newbus and device.hints are available.

Sponsored by:	DARPA, AFRL
2012-08-25 11:30:36 +00:00
Robert Watson
c9790125b5 Add preliminary support for the SRI International / University of Cambridge
Bluespec Extensible RISC Implementation (BERI) processor.  BERI is a 64-bit
MIPS ISA soft CPU core that can be synthesised to Altera and Xilinx FPGAs,
and is being used for CPU and OS research at several institutions.

Sponsored by:   DARPA, AFRL
2012-08-25 08:31:21 +00:00