Commit Graph

137 Commits

Author SHA1 Message Date
bde
32731864c4 Move scterm_teken.c from 6 MD files lists to the MI files list so that it
is easier to configure.  It is MI, unlike some of the other syscons files
already in the MI list.

Move scvtb.c similarly.  It is needed whenever sc is configured, and is
more MI than most of the files already in the MI list.

This only changes the combined list for arm64 and mips.  These arches
already cannot build sc or even NOTES.
2019-02-21 17:31:33 +00:00
mjg
378786ebf3 amd64: implement memcmp in assembly
Both the in-kernel C variant and libc asm variant have very poor performance.
The former compiles to a single byte comparison loop, which breaks down even
for small sizes. The latter uses rep cmpsq/b which turn out to have very poor
throughput and are slower than a hand-coded 32-byte comparison loop.

Depending on size this is about 3-4 times faster than the current routines.

Reviewed by:	kib
Approved by:	re (gjb)
Differential Revision:	https://reviews.freebsd.org/D17328
2018-09-27 14:05:44 +00:00
andrew
c1273a09d6 Remove now the cow unused CPU_ARM9 and CPU_FA526 options. These are for
ARMv4 CPUs that are no longer supported.
2018-07-28 11:00:45 +00:00
imp
de47afa9bf Revert r336773: it removed too much.
r336773 removed all things xscale. However, some things xscale are
really armv5. Revert that entirely. A more modest removal will follow.

Noticed by: andrew@
2018-07-27 21:25:01 +00:00
imp
0a4723bbc5 Remove xscale support
The OLD XSCALE stuff hasn't been useful in a while. The original
committer (cognet@) was the only one that had boards for it. He's
blessed this removal. Newer XSCALE (GUMSTIX) is for hardware that's
quite old. After discussion on arm@, it was clear there was no support
for keeping it.

Differential Review: https://reviews.freebsd.org/D16313
2018-07-27 18:33:09 +00:00
mmel
19d66463c0 Remove the dead code from ARM cpufunc_* files.
The elf trampoline was never been supported for ARMv6 and ARMv7 and was
disconnected from kernel build many months ago.

MFC after:	2 weeks
2018-07-18 10:33:07 +00:00
imp
000ad38a32 Remove kernel support for armeb
Remove all the big-endian arm architectures (ixp425 and ixp435)
support in the kernel and associated drivers.

Differential Revision:  https://reviews.freebsd.org/D16257
2018-07-17 23:23:45 +00:00
manu
3632d4118e Revert r327250 as it broke the build for some armv6 kernel and all armv4/5
Reported by:	ian
2017-12-28 07:31:14 +00:00
manu
03c7e10642 arm: Add kern/kern_clocksource.c to files.arm
Instead of adding it to every files.vendor, add it to the common arch file.
2017-12-27 21:39:57 +00:00
imp
36cef61704 Tag all armv7 kernels as such in their machine config line.
Transition all boards that support arm cortex CPUs to armv7. This
leaves two armv6 kernels in the tree. RPI-B, which uses the BCM2835
which has a ARM1176 core, and VERSATILEPB, which is a qemu board setup
around the time RPI-B went in. Copy std.armv6 to std.armv7, even
though that duplicates a lot of stuff. More work needs to be done to
sort out the duplication.

Differential Revision: https://reviews.freebsd.org/D12027
2017-10-05 23:01:50 +00:00
jhb
eadebd68d1 Add ptrace operations to fetch and store VFP registers.
Reviewed by:	mmel, kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D12294
2017-09-14 15:03:43 +00:00
andrew
f68f01fa5f Add external PLATFORM access on arm, and use it in the pl310 driver.
This allows multiple instances of SoCs that use the pl310 driver to be
built within the same kernel:

 * Add access to the platform_t object from outside platform.c
 * Use this with the pl310 driver

There is a new platform_pl310 interface to replace the existing code. SoCs
need to implement the init method, and if they have special requirements to
write to the two registers we care about will also need to implement the
write_ctrl and write_debug methods.

Differential Revision:	https://reviews.freebsd.org/D11546
2017-07-11 16:30:16 +00:00
imp
c67895a787 Create a new option ARM_USE_V6_BUSDMA to force an armv4/5 kernel to
use the armv6 busdma interface. This interface uses more memory than
the armv4 one, but bounces more data more often so may be more correct
than the armv4 one. It is intended for debugging purposes only at the
moment.
2017-06-18 21:03:48 +00:00
andrew
426cd972f1 Add the early hypervisor code needed on 32-bit ARMv7. This will be used
when we bring in bhyve support.

Submitted by:	Mihai Carabas <mihai.carabas AT gmail.com>
Differential Revision:	https://reviews.freebsd.org/D10045
2017-03-22 14:30:02 +00:00
mmel
65c1d51a94 Split overbloated machep.c to multiple files and do basic cleanup
of these fragments.
2017-03-11 07:07:41 +00:00
ae
0fb6ad528e Merge projects/ipsec into head/.
Small summary
 -------------

o Almost all IPsec releated code was moved into sys/netipsec.
o New kernel modules added: ipsec.ko and tcpmd5.ko. New kernel
  option IPSEC_SUPPORT added. It enables support for loading
  and unloading of ipsec.ko and tcpmd5.ko kernel modules.
o IPSEC_NAT_T option was removed. Now NAT-T support is enabled by
  default. The UDP_ENCAP_ESPINUDP_NON_IKE encapsulation type
  support was removed. Added TCP/UDP checksum handling for
  inbound packets that were decapsulated by transport mode SAs.
  setkey(8) modified to show run-time NAT-T configuration of SA.
o New network pseudo interface if_ipsec(4) added. For now it is
  build as part of ipsec.ko module (or with IPSEC kernel).
  It implements IPsec virtual tunnels to create route-based VPNs.
o The network stack now invokes IPsec functions using special
  methods. The only one header file <netipsec/ipsec_support.h>
  should be included to declare all the needed things to work
  with IPsec.
o All IPsec protocols handlers (ESP/AH/IPCOMP protosw) were removed.
  Now these protocols are handled directly via IPsec methods.
o TCP_SIGNATURE support was reworked to be more close to RFC.
o PF_KEY SADB was reworked:
  - now all security associations stored in the single SPI namespace,
    and all SAs MUST have unique SPI.
  - several hash tables added to speed up lookups in SADB.
  - SADB now uses rmlock to protect access, and concurrent threads
    can do SA lookups in the same time.
  - many PF_KEY message handlers were reworked to reflect changes
    in SADB.
  - SADB_UPDATE message was extended to support new PF_KEY headers:
    SADB_X_EXT_NEW_ADDRESS_SRC and SADB_X_EXT_NEW_ADDRESS_DST. They
    can be used by IKE daemon to change SA addresses.
o ipsecrequest and secpolicy structures were cardinally changed to
  avoid locking protection for ipsecrequest. Now we support
  only limited number (4) of bundled SAs, but they are supported
  for both INET and INET6.
o INPCB security policy cache was introduced. Each PCB now caches
  used security policies to avoid SP lookup for each packet.
o For inbound security policies added the mode, when the kernel does
  check for full history of applied IPsec transforms.
o References counting rules for security policies and security
  associations were changed. The proper SA locking added into xform
  code.
o xform code was also changed. Now it is possible to unregister xforms.
  tdb_xxx structures were changed and renamed to reflect changes in
  SADB/SPDB, and changed rules for locking and refcounting.

Reviewed by:	gnn, wblock
Obtained from:	Yandex LLC
Relnotes:	yes
Sponsored by:	Yandex LLC
Differential Revision:	https://reviews.freebsd.org/D9352
2017-02-06 08:49:57 +00:00
mmel
ae5f530142 Remake support for SMP kernel on UP cpu:
- Use new option SMP_ON_UP instead of (mis)using specific CPU type.
   By this, any SMP kernel can be compiled with SMP_ON_UP support.
 - Enable runtime detection of CPU multiprocessor extensions only
   if SMP_ON_UP option is used. In other cases (pure SMP or UP),
   statically compile only required variant.
 - Don't leak multiprocessor instructions to UP kernel.
 - Correctly handle data cache write back to point of unification.
   DCCMVAU is supported on all armv7 cpus.
 - For SMP_ON_UP kernels, detect proper TTB flags on runtime.

Differential Revision: https://reviews.freebsd.org/D9133
2017-02-02 06:14:44 +00:00
jmcneill
25e36b48b3 Split the DesignWare HDMI-specific code from imx6_hdmi.c into a separate
file and add a generic DT binding that takes advantage of the extres
framework for setting up clocks.

Reviewed by:		gonzo
Differential Revision:	https://reviews.freebsd.org/D8826
2016-12-20 01:34:29 +00:00
andrew
083cb45b1a To allow for an ACPI attachment to the generic PCIe driver split off the
FDT attachment to a new file. A separate ACPI attachment will then be added
to allow arm64 servers with ACPI to use it over FDT.

This should also help with merging this with the ofwpci driver, with
further work needed to remove restrictions this driver places on resource
allocation.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7319
2016-11-21 18:24:05 +00:00
wma
0e8c3cf473 Support for Alpine Serializer/Deserializer.
The exported functions will be used by
Alpine Ethernet driver.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           wma
Differential Revision: https://reviews.freebsd.org/D7763
2016-10-20 11:26:51 +00:00
wma
ddde760b37 Support for MSI-X on Annapurna Alpine
This patch adds support for MSI-X interrupts
on Annapurna Alpine platform. MSI-X on Alpine
work similarly to GICv2m, i.e. some range of
SPI interrupts is reserved in GIC and individual
SPIs can be triggered by MSI-X messages.
This SPI range is defined in FDT.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           nwhitehorn, wma
Differential Revision: https://reviews.freebsd.org/D7579
2016-10-20 11:23:59 +00:00
mmel
56c8fb351e ARM: Split identify_arm_cpu() into ARMv4 and ARMv6 variant.
On ARMv6, be more verbose about supported CPU features and/or
optional instructions.
2016-10-09 10:24:10 +00:00
andrew
3bb796bc2c Split CPU_CORTEXA into CPU_CORTEXA8, for the Cortex-A8, and CPU_CORTEXA_MP,
for later Cortex-A CPUs that support the Multiprocessor Extensions. This
will be needed to support both in a single GENERIC kernel while still
being able to only build for a single SoC.

Reviewed by:	mmel
Relnotes:	yes
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D8138
2016-10-04 12:25:44 +00:00
jhibbits
c31c9945e9 Move ofw_cpu file to the main files conf file.
There is nothing CPU specific here, and it's usable by both fdt and Open
Firmware based systems.  Rather than keeping the same file in every one, just
add it to the ofw/fdt block in the main file.
2016-09-21 02:56:57 +00:00
wma
e53ee72b9a Add driver for PCIe root complex on Annapurna Alpine platform.
The driver subclasses pci-host-generic and additionally
performs configuration of vendor-specific PCIe registers.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           wma
Differential Revision: https://reviews.freebsd.org/D7571
2016-09-20 11:11:06 +00:00
ed
a9355d61c1 Add very preliminary support for CloudABI for ARMv6.
In order to make CloudABI work on ARMv6, start off by copying over the
sysvec for ARM64 and adjust it to use 32-bit registers. Also add code
for fetching arguments from the stack if needed, as there are fewer
register than on ARM64.

Also import the vDSO that is needed to invoke system calls. This vDSO
uses the intra procedure call register (ip) to store the system call
number. This is a bit simpler than what native FreeBSD does, as FreeBSD
uses r7, while preserving the original r7 into ip.

This sysvec seems to be complete enough to start CloudABI processes.
These processes are capable of linking in the vDSO and are therefore
capable of executing (most?) system calls successfully. Unfortunately,
the biggest show stopper is still that TLS is completely broken:

- The linker used by CloudABI, LLD, still has troubles with some of the
  relocations needed for TLS. See LLVM bug 30218 for more details.

- Whereas FreeBSD uses the tpidruro register for TLS, for CloudABI I
  want to make use of tpidrurw, so that userspace can modify the base
  address directly. This is needed for efficient emulation.
  Unfortunately, this register doesn't seem to be preserved across
  context switches yet.

Obtained from:	https://github.com/NuxiNL/cloudabi (the vDSO)
2016-09-18 11:36:54 +00:00
wma
0da791731a Introduce support for Annapurna Alpine CCU and NB devices
This commit adds drivers for Alpine Cache Coherency Unit
and North Bridge Service whose task is to configure
the system fabric and enable cache coherency.

Obtained from:         Semihalf
Submitted by:          Michal Stanek <mst@semihalf.com>
Sponsored by:          Annapurna Labs
Reviewed by:           wma
Differential Revision: https://reviews.freebsd.org/D7565
2016-09-07 05:34:41 +00:00
jmcneill
48ff30f62e Add generic device-tree cpufreq driver. 2016-09-06 21:36:20 +00:00
andrew
400e358789 Split out the FDT parts of the GICv2 interrupt controller driver. This will
allow us to add an ACPI attachment for arm64.

Obtained from:	ABT Systems Ltd
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D7307
2016-08-01 16:29:04 +00:00
andrew
f1a8e245ae Introduce MSI and MSI-X support to intrng. This adds a new msi device
interface with 5 methods to mirror the 5 MSI/MSI-X methods in the pcib
interface. The pcib driver will need to perform a device specific lookup
to find the MSI controller and pass this to intrng as the xref. Intrng
will finally find the controller and have it handle the requested operation.

Obtained from:	ABT Systems Ltd
MFH:		yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5985
2016-05-16 09:11:40 +00:00
br
778cc5a811 Move arm's devmap to some generic place, so it can be used
by other architectures.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D6091
Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-04-26 11:53:37 +00:00
andrew
b72ace02b4 Rename ARM_INTRNG and MIPS_INTRNG to INTRNG. This will help with machine
independent code that needs to know about INTRNG such as PCI drivers.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-04-15 16:05:41 +00:00
andrew
6d190b5b3d Sort so pic_if.m is in the correct location with the other kern files.
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-04-14 15:52:11 +00:00
zbb
fc42f4865c Reduce OFW PCI code duplication - involves ARM, PPC and SPARC64
Import portions of the PowerPC OF PCI implementation into new file
"ofwpci.c", common for other platforms. The files ofw_pci.c and ofw_pci.h
from sys/powerpc/ofw no longer exist. All required declarations are moved
to sys/dev/ofw/ofwpci.h. This creates a new ofw_pci_write_ivar() function
and modifies some others methods. Most functions contain existing ppc
implementations in the majority unchanged. Now there is no need to have
multiple identical copies of methods for various architectures.

Requested by:  jhibbits
Reviewed by:   jhibbits, marius
Submitted by:  Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by:  Annapurna Labs
Differential Revision: https://reviews.freebsd.org/D4879
2016-03-29 15:19:56 +00:00
bz
380eaa2839 Adding pci_host_generic unconditionally breaks ARM boards with a PCI(e) interface.
Make it a device option to be included in the kernel configs that request this file.

Reported by:	mmel
Suggested by:	mmel
Reviewed by:	mmel
Differential Revision:	https://reviews.freebsd.org/D5699
2016-03-22 12:12:01 +00:00
bz
847c1db55e Allow pci_host_generic to be compiled into ARM kernels, used, e.g., in
simulators.

Sponsored by:	DARPA/AFRL
2016-03-18 23:55:25 +00:00
andrew
d887d37a7a Build ofw_cpu.c on all ARM configs using FDT. As we mve towards using the
Linux dts files these are more likely to have cpu nodes we can attach to.

Sponsored by:	ABT Systems Ltd
2016-02-28 09:35:37 +00:00
skra
cc1732909c Rename busdma_machdep.c to busdma_machdep-v4.c, pmap.c to pmap-v4.c
and trap.c to trap-v4.c to be plain and consistent with other armv4
specific files.
2016-02-20 07:45:21 +00:00
andrew
65e834d3fe Move the twsi driver source to be under iicbus. It is in a separate
directory as it is expected multiple attachments will be added for the SoC
families that use this hardware.

Sponsored by:	ABT Systems Ltd
2016-02-14 23:51:13 +00:00
mmel
15baa0d59b ARM: Remove support for xscale i80219 and i80321 CPUs. We haven't single
supported config/board with these CPUs.
2016-02-03 09:15:44 +00:00
mmel
f6859814fe ARM: All remaining functions in cpufunc_asm_arm10.S are identical with
functions in cpufunc_asm_arm9.S. Use arm9 variants and remove
cpufunc_asm_arm10.S completly.
2016-02-02 14:53:34 +00:00
mmel
bbdaec0dbd ARM: Split swtch.S into common, ARMv4 and ARMv6 parts. Cleanup them. 2016-01-30 08:02:12 +00:00
mmel
310b52971c ARM: After removal of old pmap-v6 code, rename pmap-v6-new.c to pmap-v6.c. 2016-01-29 11:00:33 +00:00
mmel
eec4d6c027 ARM: remove old pmap-v6 code. The new pmap-v6 is mature enough, and
dual implementation is showstopper for major cleanup.

This patch only removes old code from tree. Cleanups will follow asap.
2016-01-29 10:31:54 +00:00
zbb
030d8a98be Introduce support for HW watchpoints and single stepping for ARMv6/v7
Allows for using hardware watchpoints for 1, 2, 4, 8 byte long addresses.
The default configuration of watchpoint is RW but code allows to select
RO or WO and X.
Since debugging registers are per-CPU (CP14) the watchpoint is set on
the CPU that was lucky (or not) to enter DDB.

HW breakpoints are used to perform single step in KDB.
When HW breakpoint is enabled all watchpoints are temporary disabled
to avoid recursive abort on both watchpoint and breakpoint.
In case of branch, the breakpoint is set to both - next instruction
and possible branch address. This requires at least 2 breakpoints
supported in the CPU however this is a must for ARMv6/v7 CPUs.

Reviewed by:   imp
Submitted by:  Zbigniew Bodek <zbb@semihalf.com>
Obtained from: Semihalf
Sponsored by:  Juniper Networks Inc.
Differential Revision: https://reviews.freebsd.org/D4037
2016-01-25 18:02:28 +00:00
ian
f2c27d0528 Implement OF_decode_addr() for arm. Move most of powerpc's implementation
into a new function that other platforms can share.

This creates a new ofw_reg_to_paddr() function (in a new ofw_subr.c file)
that contains most of the existing ppc implementation, mostly unchanged.
The ppc code now calls the new MI code from the MD code, then creates a
ppc-specific bus_space mapping from the results. The new arm implementation
does the same in an arm-specific way.

This also moves the declaration of OF_decode_addr() from ofw_machdep.h to
openfirm.h, except on sparc64 which uses a different function signature.

This will help all FDT platforms to set up early console access using
OF_decode_addr().
2015-12-21 18:07:32 +00:00
adrian
a3e51ff0e6 [intrng] Migrate the intrng code from sys/arm/arm to sys/kern/subr_intr.c.
The ci20 port (by kan@) is going to reuse almost all of the intrng code
since the SoC in question looks suspiciously like someone took an ARM
SoC design and replaced the ARM core with a MIPS core.

* migrate out the code;
* rename ARM_ -> INTR_;
* rename arm_ -> intr_;
* move the interrupt flush routine from intr.c / intrng.c into
  arm/machdep_intr.c - removing the code duplication and removing
  the ARM specific bits from here.

Thanks to the Star Wars: The Force Awakens premiere line for allowing
me a couple hours of quiet time to finish the universe builds.

Tested:

* make universe

TODO:

* The structure definitions in subr_intr.c still includes machine/intr.h
  which requires one duplicates all of the intrng definitions in
  the platform code (which kan has done, and I think we don't have to.)

  Instead I should break out the generic things (function declarations,
  common intr structures, etc) into a separate header.

* Kan has requested I make the PIC based IPI stuff optional.
2015-12-18 05:43:59 +00:00
kib
80e8626b43 Add support for usermode (vdso-like) gettimeofday(2) and
clock_gettime(2) on ARMv7 and ARMv8 systems which have architectural
generic timer hardware. It is similar how the RDTSC timer is used in
userspace on x86.

Fix a permission problem where generic timer access from EL0 (or
userspace on v7) was not properly initialized on APs.

For ARMv7, mark the stack non-executable. The shared page is added for
all arms (including ARMv8 64bit), and the signal trampoline code is
moved to the page.

Reviewed by:	andrew
Discussed with:	emaste, mmel
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D4209
2015-12-07 12:20:26 +00:00
andrew
0fde3af20f Move hdmi_if.m to files.arm so other kernel configs can use it. 2015-11-21 16:25:03 +00:00
andrew
bfd1f6488e Create device options for the two common ARM timers.
Sponsored by:	ABT Systems Ltd
2015-11-21 16:23:56 +00:00