under first_page cannot be taken as this variable is connected only to
vm_page_array segment. There could be more segments in system like
the ones for various fictitious page ranges. These can be situated
under vm_page_array segment and so, they could be skipped before this
fix. However, as far as I know, there is no report associated with it.
While here, the return type of this function is changed from boolean_t
to bool type.
Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D8502
- Move all VCHI activity to worker thread: channel methods are called with
non-sleepable lock held and VCHI uses sleepable lock.
- In worker thread use sx(9) lock instead of mutex(9) for the same reason.
PR: 213801, 205979
machine/armreg.h requires access to the __ARM_ARCH macro, which is not
always properly defined (especially by gcc 4.2.1). We should include
sys/cdefs.h in order to get the definitions in machine/acle-compat.h,
which would properly define the __ARM_ARCH macro in these cases.
So, in cases where machine/armreg.h is included without _SYS_CDEFS_H_
being defined - generate an #error.
Reviewed by: andrew
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D8460
Only include sys/boot.h if LINUX_BOOT_ABI is defined in
sys/arm/arm/machdep.c
Not doing this prevents kernels that do not define LINUX_BOOT_ABI from
being build with gcc (at least 4.2.1).
Reviewed by: mmel
Sponsored by: Smartcom - Bulgaria AD
Differential Revision: https://reviews.freebsd.org/D8459
The audio controller in the H3 is more or less the same as A10/A20 except
some registers are shuffled around. The mixer interface, however, is
completely different between SoCs. Separate a10_mixer_class and
h3_mixer_class implementations are now made available. This will also make
adding support for other SoCs easier in the future.
Reviewed by: andrew, ganbold
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D8425
* Rename ARM_HAVE_MP_EXTENSIONS to ARM_USE_MP_EXTENSIONS and extend it to
handle more cases, including when SMP is not enabled.
* Check ARM_USE_MP_EXTENSIONS when building for ARMv7+, even if no SMP.
* Use ARM_USE_MP_EXTENSIONS in pmap-v6.c to detect when to set PRRR_NS1.
With this we should be able to boot on all ARMv7+ Cortex-A cores with
32-bit support.
Reviewed by: mmel, imp (earlier version)
Relnotes: yes
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8335
PLL1 is used by the cpu core, allowing changing freq is needed for cpufreq.
The factors table contains all the frequencies in the operating point table
present in the DTS.
MFC after: 1 week
hardware that supports the mp extensions. If so it should use the broadcast
tlb invalidate instructions as other CPUs or devices may need to know about
the invalidation.
To simplify the code have the compiler optimise out the else case when not
builing for Cortex-A8.
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8092
Push-Pull Two Wire interface is a almost compatible iic like bus used
in sun6i SoC. It's only use is to communicate with the power management IC.
Reviewed by: jmcneill
MFC after: 1 week
Relnotes: yes
prevent overheating.
When sensor 0's alarm interrupt is fired, set a throttle flag. Further
requests to set CPU frequency will be rejected until sensor 0's temperature
returns to a level below the hot temperature threshold.
Relnotes: yes
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
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
When detaching device trees parent devices must be detached prior to
detaching its children. This is because parent devices can have
pointers to the child devices in their softcs which are not
invalidated by device_delete_child(). This can cause use after free
issues and panic().
Device drivers implementing trees, must ensure its detach function
detaches or deletes all its children before returning.
While at it remove now redundant device_detach() calls before
device_delete_child() and device_delete_children(), mostly in
the USB controller drivers.
Tested by: Jan Henrik Sylvester <me@janh.de>
Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D8070
MFC after: 2 weeks
- Rename SOC_BCM2837 to SOC_BRCM_BCM2837, put it to opt_soc.h
- do not use files.XXX files, just move required sources to
conf/files.arm64 and make them depend on soc_brcm_bcm2837
Suggested by: andrew
Using the device pager with /dev/kmem is not stable since KVA mappings
are transient, but the device pager caches the PA associated with a
given offset forever. Interestingly, mips' implementation of
memmap() already refused requests for /dev/kmem.
Note that kvm_read/kvm_write do not use mmap, but use read and write on
/dev/kmem, so this should not affect libkvm users.
Reviewed by: kib
MFC after: 2 months
RPI3 kernel config builds kernel compatible with latest upstream device
tree and firmware: https://github.com/raspberrypi/firmware/tree/master/boot
As of today it's 597c662a613df1144a6bc43e5f4505d83bd748ca
Default console is PL01x, so pi3-disable-bt dt overlay should be configured
in config.txt and stock U-Boot should be patched to use proper serial port.
Yet unsupported: SMP, VCHIQ, RNG driver. RNG requires some work due to
upstream device tree incompatibility.
Multiple people contributed to this work over time: db@, loos@, manu@
- Revert BUS_SPACE_PHYSADDR back to rman_get_start. BUS_SPACE_PHYSADDR was
introduced in 2013 as temporary wrapper until proper solution appears.
It's ARM only and since we need this file for ARM64 build and no proper
API has been introduced - just revert the change and make sure it's
going to appear when people grep for BUS_SPACE_PHYSADDR in sources.
- Fix printf format for size_t variables
with no creative content. Include "lost" changes from git:
o Use /dev/efi instead of /dev/efidev
o Remove redundant NULL checks.
Submitted by: kib@, dim@, zbb@, emaste@
Keep resource state consistent with INTRNG state - if intr_activate_irq
fails - deactivate resource and propagate error to calling function
Reviewed by: mmel
If pass order is not specified devices are attached in the order they are
defined in dts. Some interrupt consumers may be defined before intc. Also
make sure intc interrupt-parent local_intc is attached before intc itself.
to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.
Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.
This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.
Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.
Reviewed by: rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D8185
- Fix compatibility strings
- Properly decode upstream's two-cell interrupt specs. Our home-made dts
does not have two-cell interrupts so no need to preserve backward
compatibility
- Fix range check
- Due to checking found value in for(;;) condition irq after loop was
always + 1 from actually found slot and wrong entry was marked as
used which lead to returning slot 0 for all requests.
- Add multitouch support (protocol B)
- Report physical size of the screen
- Switch from using busy loop to callbacks
- Enable callbacks only when there is active listener on /dev/input/eventX
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
- Fix RX and TX teardown:
. TX teardown would not reclaim the abandoned descriptors;
. Interrupt storms in RX teardown;
. Fixed the acknowledge of the teardown completion interrupt.
- Remove temporary lists for the descriptors;
- Simplified the descriptor handling (less writes and reads from
descriptors where possible);
- Better debug;
- Add support for the RX threshold interrupts:
With interrupt moderation only, an RX overrun is likely to happen. The
RX threshold is set to trigger a non paced interrupt everytime your RX
free buffers are under the minimum threshold, helping to prevent the rx
overrun.
The NIC now survive when pushed over its limits (where previously it would
lock up in a few seconds).
uFW (600MHz SoC) can now forward up to 560Mb/s of UDP traffic (netmap
pkt-gen as source and sink). TCP forwarding rate is over 350Mb/s.
No difference (other than CPU use) was seen on Beaglebone black (1GHz SoC)
for his fast ethernet.
Tested on: uFW, BBB
Sponsored by: Rubicon Communications, LLC (Netgate)
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
This list is incomplete, however we don't have the ID values for the
missing Cortex-A32 or A35.
Submitted by: loos (Cortex-A53)
Sponsored by: ABT Systems Ltd
descriptors are reclaimed as soon as possible.
Without this the free buffers are reclaimed only on watchdog runs or after
trying to enqueue more packets.
Sponsored by: Rubicon Communications, LLC (Netgte)
- Initialize lock before starting worker process
- Do not hold lock when destroying evdev. By that time ther should be no
other active code pathes that can access softc
- Convert "options EVDEV" to "device evdev" and "device uinput", add
modules for both new devices. They are isolated subsystems and do not
require any compile-time changes to general kernel subsytems
- For hybrid drivers that have evdev as an optional way to deliver input
events add option EVDEV_SUPPORT. Update all existing hybrid drivers
to use it instead of EVDEV
- Remove no-op DECLARE_MODULE in evdev, it's not required, MODULE_VERSION
is enough
- Add evdev module dependency to uinput
Submitted by: Vladimir Kondratiev <wulf@cicgroup.ru>
VM_MEMATTR_WRITE_COMBINING sets write-through cache flag for framebuffer
memory that prevents pixel data from being stuck in cache until evicition
happens
100 cycles per us seems accurate enough, at least it's better than the 200 value
that was used before.
Reviewed by: andrew, imp
Differential Revision: https://reviews.freebsd.org/D8062
Technically touchscreen chip is FT5406 but all hardware
communication is performed by VideCore and only final results
are presented to ARM part through memory region shared between
VC and ARM.
evdev is used as userland interface. FT5406 supports up to
10 touchpoints, but for now driver emulates single touch device
because I do not have GUI bits to test this functionality.
Driver is not enabled in default config for RPI and RPI2
Tested with: evdev-dump, tslib
The hardware can be set to limit the number of interrupts from 2 to 63
interrupts per ms.
To keep the compatibility with the TI documentation the sysctl take the
interval between the interrupts pulses: 16~500 us.
Sponsored by: Rubicon Communications, LLC (Netgate)
SMP SoCs and qemu virt. Further SoCs can be supported if they support the
PLATFORM, PLATFORM_SMP, and MULTIDELAY options.
Tested by: manu
Sponsored by: ABT Systems Ltd
