Commit Graph

4493 Commits

Author SHA1 Message Date
Michal Meloun
81cb170fea Switch to mainstream DTS for Raspberry Pi-B and Pi-2.
This is first step in attempt to make FreeBSD compatible with all variants of
RPi boards.

Reviewed by:	gonzo
MFC after:	3 weeks
2018-02-27 15:01:17 +00:00
Ian Lepore
665c7f6f1e Initialize all members of vm_page::md_page for armv4/5 systems. This fixes
a hang in SI_SUB_KMEM sysinit, and is apparently required after r323290.
Inspired by the commit message for r323676.

Reported by:	andreast@
2018-02-27 02:11:23 +00:00
Ian Lepore
1d01310593 Remove obsolete options from these kernel configs. The functionality these
enabled is now on by default since r313330.
2018-02-27 00:30:10 +00:00
Ian Lepore
e5c6bca6ba Add a hw.model sysctl oid for armv6/7 which reports the CPU model, similar
to what other arches (all except riscv and armv4/5) do.

Submitted by:	Hyun Hwang <hyun@caffeinated.codes>
Differential Revision:	https://reviews.freebsd.org/D14465
2018-02-26 23:58:56 +00:00
Ian Lepore
a0fd233964 Add a SPI driver for imx5 and imx6.
It can be compiled into the kernel with "device imx_spi" or loaded as a
module, which is also named "imx_spi".
2018-02-26 02:28:32 +00:00
Ian Lepore
bf56e64a4c Add support for booting into kdb on arm platforms when the RB_KDB is set
(using "boot -d" at the loader propmt or setting boot_ddb in loader.conf).

Submitted by:	Thomas Skibo <thomasskibo@yahoo.com>
Differential Revision:	https://reviews.freebsd.org/D14428
2018-02-25 18:42:59 +00:00
Olivier Houchard
6cd04bcd8e Use NULL as a mtx type instead of "", as it otherwise confuses WITNESS. 2018-02-24 14:34:23 +00:00
Warner Losh
ef1fcaf0f5 Do not include float interfaces when using libsa.
We don't support float in the boot loaders, so don't include
interfaces for float or double in systems headers. In addition, take
the unusual step of spiking double and float to prevent any more
accidental seepage.
2018-02-23 04:04:25 +00:00
Ian Lepore
7efedde853 Adjust whitespace of things added in the past couple years to match the
original style of the file.  No functional changes.
2018-02-20 14:59:29 +00:00
Konstantin Belousov
2c0f13aa59 vm_wait() rework.
Make vm_wait() take the vm_object argument which specifies the domain
set to wait for the min condition pass.  If there is no object
associated with the wait, use curthread' policy domainset.  The
mechanics of the wait in vm_wait() and vm_wait_domain() is supplied by
the new helper vm_wait_doms(), which directly takes the bitmask of the
domains to wait for passing min condition.

Eliminate pagedaemon_wait().  vm_domain_clear() handles the same
operations.

Eliminate VM_WAIT and VM_WAITPFAULT macros, the direct functions calls
are enough.

Eliminate several control state variables from vm_domain, unneeded
after the vm_wait() conversion.

Scetched and reviewed by:	jeff
Tested by:	pho
Sponsored by:	The FreeBSD Foundation, Mellanox Technologies
Differential revision:	https://reviews.freebsd.org/D14384
2018-02-20 10:13:13 +00:00
Ian Lepore
5e2d748931 Add the MODULE_DEPEND()s needed so that the kernel linker can resolve all
the symbols at load time when iicbus is not compiled into the kernel.
2018-02-18 23:01:33 +00:00
Ian Lepore
af85a3d172 Give the imx_i2c driver its own name, set up its relationship to ofw_iicbus.
Previously it called itself 'iichb' to link up with the EARLY_DRIVER_MODULE
declaration in ofw_iicbus.c.
2018-02-18 20:08:35 +00:00
Ian Lepore
f82eace5b3 Build modules specific to imx5/imx6 only when building those kernels.
This adds sys/modules/imx with a SUBDIR makefile to make the whole
collection of modules that are specific to these SoCs.  Initially, that
"whole collection" consists of the if_ffec and imx_i2c drivers.

The if_ffec driver is referenced in its existing home in ../ffec rather
than moving it into the imx directory, because it's used by powerpc too,
but it is no longer built for all armv6/7 systems.

The imx_i2c driver is newly added as a module.
2018-02-18 02:48:54 +00:00
Ian Lepore
b107b904a6 Add a detach method so that this can be a kldunload-friendly module. 2018-02-18 02:01:41 +00:00
Ian Lepore
07fca7ace2 Fix fallout from the import of fresh dts source files from linux 4.15. It
appears that node names no longer include leading zeroes in the @address
qualifiers, so we have to search for the nodes involved in interrupt fixup
using both flavors of name to be compatible with old and new .dtb files.

(You know you're in a bad place when you're applying a workaround to code
that exists only as a workaround for another problem.)
2018-02-18 00:02:09 +00:00
Emmanuel Vadot
0f7a6420fe aw_mmc: Only change the clock if it has really changed
This also seems to fix problem when booting Pine64 from the mmc.

Tested On:	Pine64
Tested On:	Pine64-LTS
2018-02-17 18:30:25 +00:00
Olivier Houchard
0511fa0efd Rename the ACPI variant of the gicv2m driver from "gicv2m" to "gicv2m_acpi".
The FDT variant is called "gicv2m" too, and as both would try to register
on gic, only one of them would succeed, while we want them both in a
GENERIC kernel.

Reviewed by:	andrew
2018-02-15 15:46:14 +00:00
Jeff Roberson
e958ad4cf3 Make v_wire_count a per-cpu counter(9) counter. This eliminates a
significant source of cache line contention from vm_page_alloc().  Use
accessors and vm_page_unwire_noq() so that the mechanism can be easily
changed in the future.

Reviewed by:	markj
Discussed with:	kib, glebius
Tested by:	pho (earlier version)
Sponsored by:	Netflix, Dell/EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D14273
2018-02-12 22:53:00 +00:00
Warner Losh
62bca77843 Move __va_list and related defines to sys/sys/_types.h
__va_list and related defines are identical in all the
ARCH/include/_types.h files. Move them to sys/sys/_types.h

Sponsored by: Netflix
2018-02-12 14:48:20 +00:00
Warner Losh
802baf0ba6 Cull Atmel board configs no longer relevant.
Remove most of the Atmel at91 boards. Most of them are no longer
relevant or used by people. Kept ATMEL since it should work on all the
boards that still work (I've not confirmed this, since I don't have
all these boards). Also kept SAM9G20EK, since I have several boards
that it is used on. If I've deleted a kernel in error, please let me
know.
2018-02-07 18:33:53 +00:00
Kyle Evans
87fb7f5b58 if_awg: Skip emac reset if configured for internal PHY
On the OrangePi One at least, emac reset when an ethernet cable is not
plugged in seems to break ethernet. Soft reset will fail, even with
increasing the delay and retries to wait for up to 20 seconds. This can be
reproduced across at least two different OrangePi One's by simply leaving
ethernet cable unplugged when awg attaches. Whether it's plugged in or not
through u-boot process makes no difference.

Skipping the reset in this configuration doesn't seem to cause any problems,
tried across many many reboots with and without ethernet cable plugged in.

Tested on:	OrangePi One
Tested on:	Other boards (manu)
Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D13974
2018-02-07 01:54:13 +00:00
Jeff Roberson
e2068d0bcd Use per-domain locks for vm page queue free. Move paging control from
global to per-domain state.  Protect reservations with the free lock
from the domain that they belong to.  Refactor to make vm domains more
of a first class object.

Reviewed by:    markj, kib, gallatin
Tested by:      pho
Sponsored by:   Netflix, Dell/EMC Isilon
Differential Revision:  https://reviews.freebsd.org/D14000
2018-02-06 22:10:07 +00:00
Michal Meloun
a36b6ec0f9 Implement mitigation for Spectre version 2 attacks on ARMv7.
Similarly as we already do for arm64, for mitigation is necessary to
flush branch predictor when we:
- do task switch
- receive prefetch abort on non-userspace address

The user can disable this mitigation by setting 'machdep.disable_bp_hardening'
sysctl variable, or it can check actual system status by reading
'machdep.spectre_v2_safe'

The situation is complicated by fact that:
- for Cortex-A8, the BPIALL instruction is effectively NOP until the IBE bit
  in ACTLR is set.
- for Cortex-A15, the BPIALL is always NOP. The branch predictor can be
  only flushed by doing ICIALLU with special bit (Enable invalidates  of BTB)
  set in ACTLR.

Since access to the ACTLR register is locked to secure monitor/firmware on
most boards, they will also need update of firmware / U-boot.
In worst case, when secure monitor is on-chip ROM (e.g. PandaBoard),
the board is unfixable.

MFC after:	2 weeks
Reviewed by:	imp, emaste
Differential Revision:	https://reviews.freebsd.org/D13931
2018-01-27 11:19:41 +00:00
Ian Lepore
4dbbaf2021 Add support to the imx5/6 watchdog for the external reset signal. Also, if
the "power down" watchdog used by the ROM boot code is still active when the
regular watchdog is activated, turn off the power-down watchdog.

This adds support for the "fsl,ext-reset-output" FDT property.  When
present, that property indicates that a chip reset is accomplished by
asserting the WDOG1_B external signal, which is supposed to trigger some
external component such as a PMIC to ready the hardware for reset (for
example, adjusting voltages from idle to full-power levels), and assert the
POR signal to SoC when ready.  To guard against misconfiguation leading to a
non-rebootable system, the external reset signal is backstopped by code
that asserts a normal internal chip reset if nothing responds to the
external reset signal within one second.
2018-01-26 17:55:17 +00:00
Ian Lepore
5b810fe4a6 Fix return style in RD2. Remove bogus return value from a void function
in WR2 (I have no idea why that didn't result in a compile error).
2018-01-25 18:08:56 +00:00
Ian Lepore
76ecefce9d Minor cleanups... Move DRIVER_MODULE() and other boilerplate stuff to the
bottom of the file, where it is in most imx5/6 drivers.  Switch from an RD2
macro using bus_space_read_2() to an inline function using bus_read_2();
likewise for WR2.  Use RESOURCE_SPEC_END to end the resource_spec list.

Net effect should be no functional changes.
2018-01-25 17:53:33 +00:00
Ruslan Bukin
5823f6fb29 o Move sdhci_fdt to the generic files list.
o Include Qualcomm EHCI and UART drivers to the build.

Sponsored by:	DARPA, AFRL
2018-01-25 17:16:29 +00:00
Emmanuel Vadot
09ac343759 arm: lpc: Remove support
Code hasn't been touch this it's original commit in 2012 beside api changes.

Reviewed by:	ian
Differential Revision:	https://reviews.freebsd.org/D13625
Discussed with:		freebsd-arm@freebsd.org (no reply)
2018-01-24 22:04:16 +00:00
Ian Lepore
1f23f8b0fe Make the trivial imx_soc_family() function an inline in imx_machdep.h.
The imx_machdep.c file is on the fast path to non-existance and this would
be the only thing left in it after some watchdog changes are completed.
2018-01-24 18:10:11 +00:00
Ian Lepore
2128fefb75 Reformat indentation to match other imx5/6 register definition headers, and
tweak some comments.  No functional changes.
2018-01-24 17:52:06 +00:00
Poul-Henning Kamp
59e6efefac Add skeleton manual page for bcm283x_pwm
(Feel free to improve this)
2018-01-22 07:43:54 +00:00
Poul-Henning Kamp
2b7d9db4e2 Forgot to edit copy&pasted copyright blurb. 2018-01-22 07:15:24 +00:00
Poul-Henning Kamp
fc62b7e5de Add a skeleton Clock Manager for RPi2/3, and use that from pwm
instead of frobbing the registers directly.

As a hack the bcm2835_pwm kmod presently ignores the 'status="disabled"'
in the RPI3 DTB, assuming that if you load the kld you probably
want the PWM to work.
2018-01-22 07:10:30 +00:00
Poul-Henning Kamp
137a344c63 Rename rpi_pwm to bcm283x_pwm, and build it on armv[67] and arm64.
Truncate ratio if period is lowered.

Tested on Rpi2 and Rpi3.

Rpi3 requires DTB->DTS->edit->DTB hack
2018-01-21 21:27:41 +00:00
Pedro F. Giffuni
ac2fffa4b7 Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
Michal Meloun
f8759facd2 Convert extres/phy to kobj model.
Similarly as other extres pseudo-drivers, implement phy by using kobj model.
This detaches it from provider device, so single device driver can export
multiple different phys. Additionally, this  allows phy to be subclassed to
more specialized drivers, like is USB OTG phy, or PCIe phy with hot-plug
capability.

Tested by:	manu (previous version, on Allwinner board)
MFC after:	1 month
2018-01-20 17:02:17 +00:00
Edward Tomasz Napierala
83d02512b4 Add usb_template(4) to RPI-B kernel config. This is to support the USB OTG
functionality on Raspberry Pi 0.

Reviewed by:	hselasky@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D13924
2018-01-20 14:00:07 +00:00
Nathan Whitehorn
ad6b97e7ca Define PHYS_TO_DMAP() and DMAP_TO_PHYS() as panics on the architectures
(i386 and arm) that never implement them. This allows the removal of
#ifdef PHYS_TO_DMAP on code otherwise protected by a runtime check on
PMAP_HAS_DMAP. It also fixes the build on ARM and i386 after I forgot an
#ifdef in r328168.

Reported by:	Milan Obuch
Pointy hat to:	me
2018-01-19 22:17:13 +00:00
Nathan Whitehorn
9a8196ce19 Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the
kernel by PHYS_TO_DMAP() as previously present on amd64, arm64, riscv, and
powerpc64. This introduces a new MI macro (PMAP_HAS_DMAP) that can be
evaluated at runtime to determine if the architecture has a direct map;
if it does not (or does) unconditionally and PMAP_HAS_DMAP is either 0 or
1, the compiler can remove the conditional logic.

As part of this, implement PHYS_TO_DMAP() on sparc64 and mips64, which had
similar things but spelled differently. 32-bit MIPS has a partial direct-map
that maps poorly to this concept and is unchanged.

Reviewed by:		kib
Suggestions from:	marius, alc, kib
Runtime tested on:	amd64, powerpc64, powerpc, mips64
2018-01-19 17:46:31 +00:00
Pedro F. Giffuni
a67b3b1621 arm: make some use of mallocarray(9).
Focus on code where we are doing multiplications within malloc(9). None of
these ire likely to overflow, however the change is still useful as some
static checkers can benefit from the allocation attributes we use for
mallocarray.

This initial sweep only covers malloc(9) calls with M_NOWAIT. No good
reason but I started doing the changes before r327796 and at that time it
was convenient to make sure the sorrounding code could handle NULL values.

X-Differential revision: https://reviews.freebsd.org/D13837
2018-01-15 21:09:58 +00:00
Emmanuel Vadot
ce0618bea2 allwinner: mmc: Multiple improvement
- Add a per compatible configuration struct
  - Not all SoC uses the same size for DMA transfert, add this into the
    configuration data
  - Use new timing mode for some SoC (A64 mmc)
  - Auto calibrate clock for A64 mmc/emmc
  - A64 mmc controller need masking of data0
  - Add support for vmmc/vqmmc regulator
  - Add more capabilities, r/w speed is better for eMMC
  - MMC_CAP_SIGNALING_180 gives weird result so do not enable it for now.
  - Add new register documented in H3/A64 user manual

Tested-On: Pine64-LTS (A64), eMMC still doesn't work
Tested-On: A64-Olinuxino (A64), sd and eMMC are working
Tested-On: NanoPi Neo Plus2 (H5), sd and eMMC are working
Tested-On: OrangePi PC2 (H5), sd only (no eMMC)
Tested-On: OrangePi One (H3), sd only (no eMMC)
Tested-On: BananaPi M2 (A31s), sd only (no eMMC)
2018-01-14 22:05:29 +00:00
Poul-Henning Kamp
9eec64c0aa Add a rudimentary PWM driver for the RaspberryPi.
Control is through sysctl, only GPIO12 supported.

bootverbose creates sysctls for direct mangling of relevant registers.

Only tested on RPI2
2018-01-14 20:36:21 +00:00
Kyle Evans
a5beb55bc3 Add SPDX tag to aw_syscon(4) 2018-01-13 19:02:08 +00:00
Kyle Evans
a9f41deff6 Introduce aw_syscon(4) for earlier attachment
Attaching syscon_generic earlier than BUS_PASS_DEFAULT makes it more
difficult for specific syscon drivers to attach to the syscon node and to
get ordering right. Further discussion yielded the following set of
decisions:

- Move syscon_generic to BUS_PASS_DEFAULT
- If a platform needs a syscon with different attach order or probe
behavior, it should subclass syscon_generic and match on the SoC specific
compat string
- When we come across a need for a syscon that attaches earlier but only
specifies compatible = "syscon", we should create a syscon_exclusive driver
that provides generic access but probes earlier and only matches if "syscon"
is the only compatible. Such fdt nodes do exist in the wild right now, but
we don't really use them at the moment.

Additionally:

- Any syscon provider that has needs any more complex than a spinlock solely
for syscon access and a single memory resource should subclass syscon
directly rather than attempting to subclass syscon_generic or add complexity
to it. syscon_generic's attach/detach methods may be made public should the
need arise to subclass it with additional attach/detach behavior.

We introduce aw_syscon(4) that just subclasses syscon_generic but probes
earlier to meet our requirements for if_awg and implements #2 above for this
specific situation. It currently only matches a64/a83t/h3 since these are
the only platforms that really need it at the time being.

Discussed with:	ian
Reviewed by:	manu, andrew, bcr (manpages, content unchanged since review)
Differential Revision:	https://reviews.freebsd.org/D13793
2018-01-13 18:46:31 +00:00
Jeff Roberson
6f4acaf4c9 Add support for NUMA domains to bus dma tags. This causes all memory
allocated with a tag to come from the specified domain if it meets the
other constraints provided by the tag.  Automatically create a tag at
the root of each bus specifying the domain local to that bus if
available.

Reviewed by:	jhb, kib
Tested by:	pho
Sponsored by:	Netflix, Dell/EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D13545
2018-01-12 23:34:16 +00:00
Jeff Roberson
3f289c3fcf Implement 'domainset', a cpuset based NUMA policy mechanism. This allows
userspace to control NUMA policy administratively and programmatically.

Implement domainset based iterators in the page layer.

Remove the now legacy numa_* syscalls.

Cleanup some header polution created by having seq.h in proc.h.

Reviewed by:	markj, kib
Discussed with:	alc
Tested by:	pho
Sponsored by:	Netflix, Dell/EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D13403
2018-01-12 22:48:23 +00:00
Kyle Evans
4fd54ea828 allwinner/a83t_padconf: Rename "emac" function to "gmac" as per upstream DTS
Although these should have been 'emac', upstream DTS is going with using
'gmac' as the function name for the emac RGMII pins. Rename here to
accommodate.

emac support for the a83t should come in with the 4.16 DTS update, in
another couple of months.
2018-01-12 20:35:27 +00:00
Andrew Turner
ee42eb7e5c iAdd ACPI attachments the the GIC and GICv3 interrupt controller drivers.
For each we need to walk the MADT to find which we have, then add the
driver as needed. As each may have a child they will each walk the same
table to find these details.

Reviewed by:	mmel
Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D8720
2018-01-11 17:23:24 +00:00
Andrew Turner
224c3776f6 Add the start of INTRNG support for ACPI.
This adds a new acpi_bus interface with a map_intr method. This is similar
to the Open Firmware map_intr method and allows us to create the needed
mapping from ACPI space to INTRNG space.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D8617
2018-01-11 17:09:12 +00:00
Kyle Evans
767754e5ab if_awg: Support new emac bindings
Highlights of the new bindings:
- ahb clock is specified as 'stmmaceth'
- The PHY to be used is now specified as phy-handle
- We must now check the parent of the node phy-handle points to in order to
discover if we're using internal PHY.
- The ephy clk/reset will be specified on the PHY node, not the emac node.

Care has been taken to ensure that we remain compatible with the older
bindings that we were previously using.

Tested on:	Pine64 (A64, old bindings)
Tested on:	Pine64-LTS (A64, new bindings) [manu]
Tested on:	OrangePi-One (H3, internal PHY) [manu]
Tested on:	NanoPi M1 Plus (H3, external PHY) [manu]
Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D13777
2018-01-11 14:29:29 +00:00