Commit Graph

4852 Commits

Author SHA1 Message Date
Emmanuel Vadot
54612fd52b aw_syscon: Add a new compatible
Since 5.0 DTS the syscon controller have a new compatible as it
exports new subnodes, we currently only use it as a syscon provider
so just add the new compatible.

Tested On:  H3
MFC after:	1 month
2019-04-16 12:40:49 +00:00
Emmanuel Vadot
5f50cbd3de aw_rtc: Register the clocks
Since latest DTS update the rtc is supposed to register two clocks :

- osc32k (the 32k oscillator on the board that the RTC uses directly and
that other peripheral can use)
- iosc (the internal oscillator of the RTC when available which frequency
depend on the SoC revision)

Since we need the RTC before the proper clock control unit (because it uses
those clocks) attach it a BUS_PASS_BUS + MIDDLE and attach the clock control
unit at BUS_PASS_BUS + LAST for the SoC that requires it.

Tested On:	     A20, H3, A64

MFC after:	1 month
2019-04-16 12:39:31 +00:00
Peter Jeremy
90dd0cc0b9 Specify correct Ethernet phy for RPI-B
Correct a typo in the RPI-B ethernet config - the RPi-B includes a
SMC LAN9512 USB bridge and Ethernet 10/100 NIC/phy.  The phy part of
this is supported by smscphy.

Tested On: RPi1 Model B

Approved by:	grog, jhb (mentors)
MFC after:	3 days
2019-04-16 09:44:46 +00:00
Peter Jeremy
e446dd5d7d Fix cpufreq(4) on RPI-B
Since r324184 the root node compatible for the original Raspberry Pi
is "brcm,bcm2835", add it to the compatible list of bcm2835_cpufreq.

Tested On: RPi1 Model B

Note that the default Das U-Boot FDT does not include a cpus clause
so actually adding a bcm2835_cpufreq device requires adding a FDT
overlay defining the cpu.

Approved by:	grog, jhb (mentors)
MFC after:	3 days
2019-04-16 09:42:42 +00:00
Warner Losh
f7ab01581a Move mpr/mps drivers from per-arch NOTES files into the MI notes
file. They are in more arches they they aren't. Add appropriate
nodevice directives in powerpc and arm.
2019-04-13 06:30:45 +00:00
Ilya Bakulin
5d5ae0660a Implement CMD53 block mode support for SDHCI and AllWinner-based boards
If a custom block size requested, use it, otherwise revert to the previous logic
of using just a data size if it's less than MMC_BLOCK_SIZE, and MMC_BLOCK_SIZE otherwise.

Reviewed by:	bz
Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D19783
2019-04-10 19:53:36 +00:00
Emmanuel Vadot
9a042e7d03 arm: kernel: Remove old kernel configs
Follow up to r346095
All those kernels are either not working or the release have switched
to GENERIC
2019-04-10 19:27:14 +00:00
Ed Maste
5eb264119e cpsw: use phy-handle in FDT to find PHY address
In r337703 DTS files were updated to Linux 4.18, including Linux commit
4d8b032d3c03f4e9788a18bbb51b10e6c9e8a56b which removed the `phy_id`
property from am335x-bone-common (as the property was deprecated).

Use `phy-handle` via fdt_get_phyaddr, keeping the existing code as a
fallback for old DTBs.

PR:		236624
Submitted by:	manu, Gerald Aryeetey <aryeeteygerald_rogers.com>
Reported by:	Gerald Aryeetey
Reviewed by:	manu
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D19814
2019-04-03 21:01:53 +00:00
Ilya Bakulin
5d20e65174 Use information about max data size that the controller is able to operate
Using DFLTPHYS/MAXPHYS is not always OK, instead make it possible for the
controller driver to provide maximum data size to MMCCAM, and use it there.

The old stack already does this.

Reviewed by:	manu
Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D15892
2019-04-01 18:49:39 +00:00
Bjoern A. Zeeb
fe2825be6f Improve debugging options in bcm2835_sdhci.c
Similar to bcm2835_sdhost.c add a TUNABLE and SYSCTL to selectively
turn on debugging printfs if debugging is turned on at compile time.

MFC after:		2 weeks
Sponsored by:		The FreeBSD Foundation
Reviewed by:		gonzo, andrew
Differential Revision:	https://reviews.freebsd.org/D19745
2019-03-31 19:27:44 +00:00
Emmanuel Vadot
34f71e304e arm: allwinner: clk: Fix nm_recalc
When comparing best frequencies use the absolute value.
If we do not do that we end up choosing an always lower value than
the best one if the exact freq cannot be met.

MFC after:	2 weeks
2019-03-29 19:40:04 +00:00
Michal Meloun
966e7b050d Use named field's initializer when constructing <foo>_platform structure.
In current code, the delay argument in FDT_PLATFORM_DEF(2) improperly
initialize refs field from kobj_class structure instead of delay_count
field.
This causes not working DELAY() function (due to never initialized
delay_count) in earlier boot stages, until the first timer was attached.

MFC after:	2 weeks
2019-03-19 14:32:54 +00:00
Konstantin Belousov
fd8d844f76 amd64 KPTI: add control from procctl(2).
Add the infrastructure to allow MD procctl(2) commands, and use it to
introduce amd64 PTI control and reporting.  PTI mode cannot be
modified for existing pmap, the knob controls PTI of the new vmspace
created on exec.

Requested by:	jhb
Reviewed by:	jhb, markj (previous version)
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D19514
2019-03-16 11:44:33 +00:00
Konstantin Belousov
6f1fe3305a amd64: Add md process flags and first P_MD_PTI flag.
PTI mode for the process pmap on exec is activated iff P_MD_PTI is set.

On exec, the existing vmspace can be reused only if pti mode of the
pmap matches the P_MD_PTI flag of the process.  Add MD
cpu_exec_vmspace_reuse() callback for exec_new_vmspace() which can
vetoed reuse of the existing vmspace.

MFC note: md_flags change struct proc KBI.

Reviewed by:	jhb, markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D19514
2019-03-16 11:31:01 +00:00
Ian Lepore
6daa4a4079 Mark the imx_spi device busy while transfers are in progress, so that the
module can't be unloaded while interrupts are pending.
2019-03-11 03:07:05 +00:00
Emmanuel Vadot
d83a581cad arm64: allwinner: a64: Add TCON clock
The tcon clock need a mux table for it's parent, for now just
list the parents twice.
2019-03-07 19:32:01 +00:00
Emmanuel Vadot
1788e14d92 arm64: allwinner: Add CCU DE2
The Display Engine 2 have it's own Clock and Control Unit, add support
for it.
2019-03-07 19:30:37 +00:00
Emmanuel Vadot
2b0adb4404 arm: allwinner: Fix NM clock recalc
If the NM clock is using a fractional divider the formula isn't the same.
2019-03-07 19:28:47 +00:00
John Baldwin
2e43efd0bb Drop "All rights reserved" from my copyright statements.
Reviewed by:	rgrimes
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D19485
2019-03-06 22:11:45 +00:00
Edward Tomasz Napierala
1699546def Remove sv_pagesize, originally introduced with r100384.
In all of the architectures we have today, we always use PAGE_SIZE.
While in theory one could define different things, none of the
current architectures do, even the ones that have transitioned from
32-bit to 64-bit like i386 and arm. Some ancient mips binaries on
other systems used 8k instead of 4k, but we don't support running
those and likely never will due to their age and obscurity.

Reviewed by:	imp (who also contributed the commit message)
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D19280
2019-03-01 16:16:38 +00:00
Emmanuel Vadot
709958c070 Fix armv6/armv7 build after the move from xhci_mv to generic_xhci 2019-02-27 22:01:39 +00:00
Ganbold Tsagaankhuu
3e6de15436 Add base to the warning threshold. 2019-02-22 03:11:27 +00:00
Konstantin Belousov
e7a9df16e6 Add kernel support for Intel userspace protection keys feature on
Skylake Xeons.

See SDM rev. 68 Vol 3 4.6.2 Protection Keys and the description of the
RDPKRU and WRPKRU instructions.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D18893
2019-02-20 09:51:13 +00:00
Ganbold Tsagaankhuu
90ce6e8cfd Clarify notifications when battery capacity ratio
reaches warning and shutdown thresholds.
2019-02-20 07:10:38 +00:00
Ian Lepore
256c1bca9e Add a compatible string to match recent changes in the upstream dts. 2019-02-18 19:50:53 +00:00
Ganbold Tsagaankhuu
e1d8f44fd4 Add sysctl for setting battery charging current.
The charging current can be set using steps
from 0: 200mA to 13: 2800mA (200mA/step).
While there, fix battery charging current related
sensor descriptions.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D19212
2019-02-17 01:16:27 +00:00
Konstantin Belousov
72091bb393 Enable enabling ASLR on non-x86 architectures.
Discussed with:	emaste
Sponsored by:	The FreeBSD Foundation
2019-02-14 14:44:53 +00:00
Ganbold Tsagaankhuu
66bddb4c70 Add sensors support for AXP803/AXP813. Sensor values such as
battery charging, charge state, voltage, charging current, discharging current,
battery capacity etc. can be obtained via sysctl.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D19145
2019-02-11 14:31:19 +00:00
Michal Meloun
9492d971eb Fix bug introduced by r343962.
DMAMAP_DMAMEM_ALLOC is property of dmamap, not dmatag.

MFC after:	1 week
Reported by:	ian
Pointy hat:	mmel
2019-02-10 18:28:37 +00:00
Konstantin Belousov
fa50a3552d Implement Address Space Layout Randomization (ASLR)
With this change, randomization can be enabled for all non-fixed
mappings.  It means that the base address for the mapping is selected
with a guaranteed amount of entropy (bits). If the mapping was
requested to be superpage aligned, the randomization honours the
superpage attributes.

Although the value of ASLR is diminshing over time as exploit authors
work out simple ASLR bypass techniques, it elimintates the trivial
exploitation of certain vulnerabilities, at least in theory.  This
implementation is relatively small and happens at the correct
architectural level.  Also, it is not expected to introduce
regressions in existing cases when turned off (default for now), or
cause any significant maintaince burden.

The randomization is done on a best-effort basis - that is, the
allocator falls back to a first fit strategy if fragmentation prevents
entropy injection.  It is trivial to implement a strong mode where
failure to guarantee the requested amount of entropy results in
mapping request failure, but I do not consider that to be usable.

I have not fine-tuned the amount of entropy injected right now. It is
only a quantitive change that will not change the implementation.  The
current amount is controlled by aslr_pages_rnd.

To not spoil coalescing optimizations, to reduce the page table
fragmentation inherent to ASLR, and to keep the transient superpage
promotion for the malloced memory, locality clustering is implemented
for anonymous private mappings, which are automatically grouped until
fragmentation kicks in.  The initial location for the anon group range
is, of course, randomized.  This is controlled by vm.cluster_anon,
enabled by default.

The default mode keeps the sbrk area unpopulated by other mappings,
but this can be turned off, which gives much more breathing bits on
architectures with small address space, such as i386.  This is tied
with the question of following an application's hint about the mmap(2)
base address. Testing shows that ignoring the hint does not affect the
function of common applications, but I would expect more demanding
code could break. By default sbrk is preserved and mmap hints are
satisfied, which can be changed by using the
kern.elf{32,64}.aslr.honor_sbrk sysctl.

ASLR is enabled on per-ABI basis, and currently it is only allowed on
FreeBSD native i386 and amd64 (including compat 32bit) ABIs.  Support
for additional architectures will be added after further testing.

Both per-process and per-image controls are implemented:
- procctl(2) adds PROC_ASLR_CTL/PROC_ASLR_STATUS;
- NT_FREEBSD_FCTL_ASLR_DISABLE feature control note bit makes it possible
  to force ASLR off for the given binary.  (A tool to edit the feature
  control note is in development.)
Global controls are:
- kern.elf{32,64}.aslr.enable - for non-fixed mappings done by mmap(2);
- kern.elf{32,64}.aslr.pie_enable - for PIE image activation mappings;
- kern.elf{32,64}.aslr.honor_sbrk - allow to use sbrk area for mmap(2);
- vm.cluster_anon - enables anon mapping clustering.

PR:	208580 (exp runs)
Exp-runs done by:	antoine
Reviewed by:	markj (previous version)
Discussed with:	emaste
Tested by:	pho
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D5603
2019-02-10 17:19:45 +00:00
Michal Meloun
e609023c0b Don't allocate same clock twice..
MFC after:	1 week
Reported by:	jah
2019-02-10 14:30:15 +00:00
Michal Meloun
74a2bcfa80 Properly handle alignment requests bigger that page size.
- for now, alignments bigger that page size is allowed only for buffers
   allocated by bus_dmamem_alloc(), cover this fact by KASSERT.
 - never bounce buffers allocated by bus_dmamem_alloc(), these always comply
   with the required rules (alignment, boundary, address range).

MFC after:	1 week
Reviewed by:	jah
PR:		235542
2019-02-10 14:25:29 +00:00
Ganbold Tsagaankhuu
f1784b3ec5 Enable necessary bits when activating interrupts. This allows
reading some events from the interrupt status registers. These events
are reported to devd via system "PMU" and subsystem "Battery", "AC"
and "USB" such as plugged/unplugged, absent, charged and charging.

Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D19116
2019-02-10 08:41:52 +00:00
Jayachandran C.
cc9b5471a0 arm, acpi: increase size of memory region arrays
Bump up MAX_HWCNT and MAX_EXCNT to 32 when ACPI is enabled. These are
the sizes of the hwregions and exregions arrays respectively. ACPI
firmware typically has more memory regions and the current value of
16 is not sufficient for some platforms.

This commit fixes a failure seen with AMI firmware on Cavium's Sabre
ThunderX2 reference platform. This platform needs 21 physical memory
regions and 18 excluded regions to boot correctly with the current
firmware release.

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D19073
2019-02-05 06:25:35 +00:00
Kyle Evans
649a5cd5ef awg: fix soft reset failure with no link
U-Boot will leave the ephy reset de-asserted and the MAC soft reset will
fail on these boards with internal PHY and no link established. Toggle reset
again before proceeding to attach/init.

MFC after:	1 week
2019-01-21 14:35:36 +00:00
Andriy Voskoboinyk
4945f79a4c Remove IEEE80211_AMPDU_AGE config option.
It is noop since r297774.
2019-01-20 15:17:56 +00:00
Kyle Evans
a3a7d2a4e5 Revert r343095
This was intended to fix the soft reset timeout on boot for OrangePi One/R1
with internal PHY, but seems to cause other problems later on due to soft
resetting around some state changes that may or may not make the NIC
non-functional.

Reverting this for now while a better solution is sought out.
2019-01-17 18:51:56 +00:00
Oleksandr Tymoshenko
3ea5899793 [mv] Fix invalid condition in fdt_fixup_ranges
Add parentheses to perform assignment before comparison. The prior
condition worked because fdt_parent_addr_cells returns 1 for the DTB
on which fdt_fixup_ranges is called and accidentally par_addr_cells
ends up to be set to the same value.

PR:		210705
Submitted by:	David Binderman <dcb314@hotmail.com>
MFC after:	1 week
2019-01-16 21:13:50 +00:00
Kyle Evans
1cf7d13fab awg: Move MAC soft reset to awg_init_locked to avoid soft reset timeout
From NetBSD: Since the MAC can get stuck in reset state with no link, ignore
reset timeouts and continue with initializing the device.

Fixes "soft reset timeout" issue at boot with no network cable plugged in.

awg_init may be called multiple times throughout normal interface usage, so
the tx/rx descriptor base address registers must be written after each MAC
reset and are moved as such.

This problem has been observed on FreeBSD, H3/H2+ devices with an internal
PHY (includes OrangePi R1, OrangePi One at least).

Reviewed by:	manu, ganbold
Obtained from:	NetBSD
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D18844
2019-01-16 14:42:33 +00:00
Oleksandr Tymoshenko
6534f93296 [mv_pci] Increase default PCI space size for mv_pci
mv_pci driver reads PCI memory window layout from DTB data and if the
data is incomplete falls back to default value. The value is too small
to fit two PCI spaces for mwlwifi devices on WRT3200ACM so the resource
allocation for them fails. Increase the default to 4Mb from 1Mb so
the devices can be properly attached.

MFC after:	1 week
2019-01-15 00:37:37 +00:00
Ian Lepore
ed47d82f59 Add a missing \n to a bootverbose printf. 2019-01-07 16:36:45 +00:00
Ian Lepore
584e31851a Support the SPI mode and bus clock frequency parameters set by the devices
requesting SPI transfers.

Reported by:	SAITOU Toshihide <toshi@ruby.ocn.ne.jp>
2018-12-31 16:01:22 +00:00
Marius Strobl
ab00a509ee o Don't allocate resources for SDMA in sdhci(4) if the controller or the
front-end doesn't support SDMA or the latter implements a platform-
  specific transfer method instead. While at it, factor out allocation
  and freeing of SDMA resources to sdhci_dma_{alloc,free}() in order to
  keep the code more readable when adding support for ADMA variants.

o Base the size of the SDMA bounce buffer on MAXPHYS up to the maximum
  of 512 KiB instead of using a fixed 4-KiB-buffer. With the default
  MAXPHYS of 128 KiB and depending on the controller and medium, this
  reduces the number of SDHCI interrupts by a factor of ~16 to ~32 on
  sequential reads while an increase of throughput of up to ~84 % was
  seen.

  Front-ends for broken controllers that only support an SDMA buffer
  boundary of a specific size may set SDHCI_QUIRK_BROKEN_SDMA_BOUNDARY
  and supply a size via struct sdhci_slot. According to Linux, only
  Qualcomm MSM-type SDHCI controllers are affected by this, though.

  Requested by: Shreyank Amartya (unconditional bump to 512 KiB)

o Introduce a SDHCI_DEPEND macro for specifying the dependency of the
  front-end modules on the sdhci(4) one and bump the module version
  of sdhci(4) to 2 via an also newly introduced SDHCI_VERSION in order
  to ensure that all components are in sync WRT struct sdhci_slot.

o In sdhci(4):
  - Make pointers const were applicable,
  - replace a few device_printf(9) calls with slot_printf() for
    consistency, and
  - sync some local functions with their prototypes WRT static.
2018-12-30 23:08:06 +00:00
Mateusz Guzik
628888f0e0 Remove iBCS2, part2: general kernel
Reviewed by:	kib (previous version)
Sponsored by:	The FreeBSD Foundation
2018-12-19 21:57:58 +00:00
Oleksandr Tymoshenko
afffcaa18f [mv_pci] Do not attempt to attach disabled PCI ports
Fail probe for PCI port if the respective FDT node is not enabled

Differential Revision:	https://reviews.freebsd.org/D18385
2018-12-15 02:35:48 +00:00
Emmanuel Vadot
ad5bce19bf allwinner: aw_pwm: Read value at attach
The booloaded might have configured the pwm controller so read the values.
2018-12-14 18:39:17 +00:00
Emmanuel Vadot
6a9997ed67 pwm: Convert period and duty to unsigned int
We don't need a 64 bits value to store nanoseconds

Discused with:	ian, jhibbits
2018-12-14 18:37:26 +00:00
Emmanuel Vadot
6c8fcde80c arm64: allwinner: axp81x: Fix double invertion for FLDO1
This fix booting on A64 boards when disabling the unused regulators at boot.
We did disable all the regulator handled by register 0x13 which of course contain
mandatory regulators for the board to be up.

Reported by:	Mark Millard <marklmi@yahoo.com>
X-MFC-With:	r340848
2018-12-14 10:26:17 +00:00
Emmanuel Vadot
2d5e81fbd0 mv_thermal: Add thermal driver for AP806 and CP110 thermal sensor
Sponsored by:	Rubicon Communications, LLC ("Netgate")
2018-12-12 22:33:05 +00:00
Emmanuel Vadot
31cdaf420f arm64: mv_cp110_icu: Fix build 2018-12-12 22:24:30 +00:00
Emmanuel Vadot
e5ff483e7a mv_gpio: Since it's also an interrupt controller, attach sooner
Sponsored by:	Rubicon Communications, LLC ("Netgate")
2018-12-12 22:10:11 +00:00
Emmanuel Vadot
44d027bb5d arm64: Add mv_cp110_icu and mv_cp110_gicp
icu is a interrupt concentrator in the CP110 block and gicp
is a gic extension to allow interrupts in the CP block to be turned
into GIC SPI interrupts

Sponsored by:	Rubicon Communications, LLC ("Netgate")
2018-12-12 22:08:43 +00:00
Emmanuel Vadot
73450c4a7a arm64: marvell: Add cp110 clock controller support
The cp110 clock controller controls the clocks and gate of the CP110
hardware block.

Every clock/gate are implemented except the NAND clock.

Sponsored by:	Rubicon Communications, LLC ("Netgate")
2018-12-12 22:04:21 +00:00
Emmanuel Vadot
4f3a5b510b arm64: mv_gpio: Add Marvell 8K support
While here put the interrupts setup in it's own function

Sponsored by:	Rubicon Communications, LCC ("Netgate")
2018-12-12 22:02:57 +00:00
Emmanuel Vadot
e1453c9e4c arm64: marvell: Add driver for Marvell Ap806 System Controller
The first two clocks are for the clusters and their frequencies can be
found reading a register. Then a fixed 1200Mhz clock is present and two
fixed clocks, 'mss' which is 1200 / 6 and 'sdio' which is 1200 / 3.

Sponsored by:	Rubicon Communications, LLC ("Netgate")
2018-12-12 22:01:06 +00:00
Emmanuel Vadot
2d2a085222 arm64: mvebu_pinctrl: Add driver for Marvell Pinmux Controller
Add a driver compatible with Marvell mvebu-pinctrl and add ap806-pinctrl
support.

Sponsored by:	Rubicon Communications, LCC ("Netgate")
2018-12-12 22:00:05 +00:00
Emmanuel Vadot
277a038d0d arm64: allwinner: Add pwm driver
Add a pwm driver for Allwinner PWM
Add pwm and aw_pwm to the GENERIC kernel
2018-12-12 20:58:43 +00:00
Hans Petter Selasky
d7a9bfee8f Implement atomic_swap_xxx() for all platforms.
Differential Revision:	https://reviews.freebsd.org/D18450
Reviewed by:		kib@
MFC after:		3 days
Sponsored by:		Mellanox Technologies
2018-12-10 13:38:13 +00:00
Michal Meloun
025489d337 Fix cut&paste typo in atomic_fetchadd_64().
Reported by:	Jia-Shiun Li <jiashiun@gmail.com>
MFC after:	1 week
2018-12-07 11:10:27 +00:00
Mark Johnston
352aaa5122 Plug memory disclosures via ptrace(2).
On some architectures, the structures returned by PT_GET*REGS were not
fully populated and could contain uninitialized stack memory.  The same
issue existed with the register files in procfs.

Reported by:	Thomas Barabosch, Fraunhofer FKIE
Reviewed by:	kib
MFC after:	3 days
Security:	kernel stack memory disclosure
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18421
2018-12-03 20:54:17 +00:00
Oleksandr Tymoshenko
440e13cf1e Fix PCI driver unload for Marvell PCI controller
Add generic implementation for bus_deactivate_resource method. Without
it bus_release_resource fails with "Failed to release active resource"
message

MFC after:	1 week
2018-12-02 21:58:36 +00:00
Konstantin Belousov
b8c20c02cc Fix off-by-one (page) errors in checks in d_mmap methods of several drivers.
Reported by:	C Turt <ecturt@gmail.com>
Reviewed by:	alc, markj
admbug:		781
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2018-12-02 18:30:58 +00:00
Michal Meloun
f788dba5bb Return computed real memory size, not a value from similarly named
global variable.

MFC after:	1 week
2018-12-02 07:39:16 +00:00
Konstantin Belousov
36e1b9702e Correct the tunable name in the message.
Submitted by:	 Andre Albsmeier <mail@fbsd.e4m.org>
PR:	231577
MFC after:	1 week
2018-12-01 16:43:18 +00:00
Eric van Gyzen
984969cd96 Fix reporting of SS_ONSTACK
Fix reporting of SS_ONSTACK in nested signal delivery when sigaltstack()
is used on some architectures.

Add a unit test for this.  I tested the test by introducing the bug
on amd64.  I did not test it on other architectures.

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D18347
2018-11-30 22:44:33 +00:00
Eric van Gyzen
4d5a108409 Prevent kernel stack disclosure in signal delivery
On arm64 and riscv platforms, sendsig() failed to zero the signal
frame before copying it out to userspace.  Zero it.

On arm, I believe all the contents of the frame were initialized,
so there was no disclosure.  However, explicitly zero the whole frame
because that fact could inadvertently change in the future,
it's more clear to the reader, and I could be wrong in the first place.

MFC after:	2 days
Security:	similar to FreeBSD-EN-18:12.mem and CVE-2018-17155
Sponsored by:	Dell EMC Isilon
2018-11-26 20:52:53 +00:00
Emmanuel Vadot
198e1deb5f aw_usbphy: Do not error if it's not phy 0
Only phy0 can switch between host/otg, do not error if we request
host mode on phy != 0.

MFC after:	1 month
X-MFC with:	r340846
2018-11-26 14:27:13 +00:00
Emmanuel Vadot
759436eb7c axp8xx: Rework the enable part and add the GPIOXLDO regulators
MFC after:	1 month
2018-11-23 19:45:57 +00:00
Emmanuel Vadot
8e9e4ec6b6 a10_ehci: Always set the phy to host mode
MFC after:	1 month
2018-11-23 19:45:11 +00:00
Emmanuel Vadot
84ebe16ac6 aw_usbphy: Convert to usbphy subclass
Instead of routing the phy when enabling it, do the configuration
and routing in the phynode_usb_set_mode function.
While here, if we don't have a vbus detection method, enable the phy
if requested.

MFC after:	1 month
2018-11-23 19:44:26 +00:00
Jayachandran C.
d4d6ad3f05 acpica: rework INTRNG interrupts
On arm64 (where INTRNG is enabled), the interrupts have to be mapped
with ACPI_BUS_MAP_INTR() before adding them as resources to devices.

The earlier code did the mapping before calling acpi_set_resource(),
which bypassed code that checked for PCI link interrupts.

To fix this, move the call to map interrupts into acpi_set_resource()
and that requires additional work to lookup interrupt properties.
The changes here are to:
 * extend acpi_lookup_irq_handler() to lookup an irq in the ACPI
   resources
 * create a helper function acpi_map_intr() which uses the updated
   acpi_lookup_irq_handler() to look up an irq, and then map it
   with ACPI_BUS_MAP_INTR()
 * use acpi_map_intr() in acpi_pcib_route_interrupt() to map
   pci link interrupts.

With these changes, we can drop the ifdefs in acpi_resource.c, and
we can also drop the call for mapping interrupts in generic_timer.c

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D17790
2018-11-19 03:02:47 +00:00
Luiz Otavio O Souza
aaf1f854e1 Set the SPI clock speed and polarity on each transfer to catch up with
recent changes in spibus and allow the use of different SPI modes on
the same bus.

Reported by:	ian
Sponsored by:	Rubicon Communications, LLC (Netgate)
2018-11-15 17:05:02 +00:00
Luiz Otavio O Souza
77613ca0cb Comment MD_ROOT and remove 'device re' which is not part of the system and
can be loaded as module.
2018-11-15 16:29:27 +00:00
Luiz Otavio O Souza
2e82757c64 Add the driver for the SPI controller on ARMADA38X.
Tested on Clearfog (Pro) and SG-3100.

Sponsored by:	Rubicon Communications, LLC (Netgate)
2018-11-14 14:26:32 +00:00
Ed Maste
8573e2c388 use -m ${LD_EMULATION} for binary->elf link invocation
r306041 changed ld invocations for converting binary files to kernel
ELF objects to pass -m, but missed bespoke ld invocations in a pair of
arm file configs (one of which has since been removed).

This is needed to support some external toolchains and lld.

Sponsored by:	The FreeBSD Foundation
2018-11-09 19:16:01 +00:00
John Baldwin
4cbbb74888 Add a KPI for the delay while spinning on a spin lock.
Replace a call to DELAY(1) with a new cpu_lock_delay() KPI.  Currently
cpu_lock_delay() is defined to DELAY(1) on all platforms.  However,
platforms with a DELAY() implementation that uses spin locks should
implement a custom cpu_lock_delay() doesn't use locks.

Reviewed by:	kib
MFC after:	3 days
2018-11-05 21:34:17 +00:00
Konstantin Belousov
f6bb885ff6 Move the fixed base for PIE loading on arm.
Existing base causes conflicts for direct execution of ld-elf.so.1
because default linking base for non-PIE binaries is 0x10000.

Reported and tested by:	Mark Millard <marklmi26-fbsd@yahoo.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2018-11-04 19:11:32 +00:00
John Baldwin
b317cfd4c0 Don't enter DDB for fatal traps before panic by default.
Add a new 'debugger_on_trap' knob separate from 'debugger_on_panic'
and make the calls to kdb_trap() in MD fatal trap handlers prior to
calling panic() conditional on this new knob instead of
'debugger_on_panic'.  Disable the new knob by default.  Developers who
wish to recover from a fatal fault by adjusting saved register state
and retrying the faulting instruction can still do so by enabling the
new knob.  However, for the more common case this makes the user
experience for panics due to a fatal fault match the user experience
for other panics, e.g. 'c' in DDB will generate a crash dump and
reboot the system rather than being stuck in an infinite loop of fatal
fault messages and DDB prompts.

Reviewed by:	kib, avg
MFC after:	2 months
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D17768
2018-11-01 21:34:17 +00:00
Kyle Evans
be352d20d5 Compile in VERBOSE_SYSINIT support by default, remain silent by default
The loader tunable 'debug.verbose_sysinit' may be used to toggle verbosity.
This is added to the debugging section of these kernconfs to be turned off
in stable branches for clarity of intent.

MFC after:	never
2018-10-31 22:38:19 +00:00
Brooks Davis
c3adaa3305 Consolidate identical ELF auxargs type defintions.
All platforms except powerpc use the same values and powerpc shares a
majority of them.

Go ahead and declare AT_NOTELF, AT_UID, and AT_EUID in favor of the
unused AT_DCACHEBSIZE, AT_ICACHEBSIZE, and AT_UCACHEBSIZE for powerpc.

Reviewed by:	jhb, imp
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D17397
2018-10-22 22:24:32 +00:00
Jayachandran C.
47fa06ab35 arm generic_timer: fix armv8 timer desc
In the FDT based probe, check for "arm,armv8-timer" before "arm,armv7-timer".
This gets the description right when the timer node has both entries in
compatible list.
2018-10-21 02:12:26 +00:00
Ruslan Bukin
3c8efd61f5 Revert r339421 due to unintended files included to commit.
Reported by:	ian
Approved by:	re (gjb)
Sponsored by:	DARPA, AFRL
2018-10-18 15:17:58 +00:00
Ruslan Bukin
53c6ad1d62 Support RISC-V implementations that do not manage the A and D bits
(e.g. RocketChip, lowRISC and derivatives).

RISC-V page table entries support A (accessed) and D (dirty) bits. The
spec makes hardware support for these bits optional. Implementations that
do not manage these bits in hardware raise page faults for accesses to a
valid page without A set and writes to a writable page without D set.
Check for these types of faults when handling a page fault and fixup the
PTE without calling vm_fault if they occur.

Reviewed by:	jhb, markj
Approved by:	re (gjb)
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D17424
2018-10-18 15:08:14 +00:00
Ed Maste
f2990e6c19 Enable Capsicum on armv6/armv7
We ought to be consistent across our Tier-1 and nearly-Tier-1
architectures, so enable Capsicum for 32-bit armv6/armv7 by default.

PR:		204008
Reviewed by:	ian, oshogbo
Approved by:	re (gjb)
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17023
2018-09-13 21:00:17 +00:00
Mark Johnston
9c78fa0a61 Fix the 32-bit arm build.
X-MFC with:     r338537
Approved by:	re (rgrimes)
Sponsored by:	The FreeBSD Foundation
2018-09-08 23:39:26 +00:00
Mark Johnston
88db0afa82 Bump MAX_HWCNT and MAX_EXCNT.
These limits are hit on the ThunderX.  Also make
arm_physmem_exclude_region() panic rather than fail silently if the
limit on excluded regions is reached.

PR:		231064
Reviewed by:	andrew
Approved by:	re (kib)
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17073
2018-09-08 21:51:47 +00:00
Andrew Turner
fe3ddcf2d5 Fix the GIC ACPI cross reference value.
To support INTRNG with ACPI we need to set a non-zero cross reference value
for the interrupt controller. The GICv3 driver already had this value set,
however it was missed in the GICv2 driver. Fix this by setting xref to the
correct value.

Approved by:	re (gjb)
2018-09-06 17:25:50 +00:00
Andrew Turner
ddb7437378 Remove the check that the Arm generic interrupt controller variant is
non-zero. This is the case on qemu, so remove it to allow us to boot there.
This change is needed to boot on qemu with ACPI.

Approved by:	re (gjb)
2018-09-06 17:25:01 +00:00
Emmanuel Vadot
6830111909 omap4_prcm: Delay the frequencies read check
Same as r333305, with Linux 4.17 dts the compatible for the prcm added
'simplebus', it mean that the simplebus driver will attach to it
at the BUS_PASS_BUS pass.
Change the pass for the prcm driver to be at BUS_PASS_BUS so we will win
the attach.
This introduce a problem as this driver needs the omap_scm one to be already
attached. omap_scm also attach at BUS_PASS_BUS but after the prcm one as it is
after in the dtb and the simplebus driver simpy walk the tree to attach it's
children.
Use the bus_new_pass method to defer the frequencies read at BUS_PASS_TIMER.
This fixes booting on pandaboard

Approved by:	re (rgrimes)
2018-08-30 14:32:47 +00:00
Emmanuel Vadot
b83d10091f arm64: GENERIC-MMCCAM: Fix build and module depend
Fix the build of the GENERIC-MMCCAM kernel config after the sdhci_xenon
driver was commited.
While here correct sdhci_fdt and tegra_sdhci, even with MMCCAM they do
need to depend on sdhci(4)

Reported by:	Reshetnikov Dmitriy <genserg@hotmail.com>
Approved by:	re (kib)
Sponsored by:	Rubicon Communications, LLC ("NetGate")
2018-08-29 14:01:27 +00:00
Konstantin Belousov
f0165b1ca6 Remove {max/min}_offset() macros, use vm_map_{max/min}() inlines.
Exposing max_offset and min_offset defines in public headers is
causing clashes with variable names, for example when building QEMU.

Based on the submission by:	royger
Reviewed by:	alc, markj (previous version)
Sponsored by:	The FreeBSD Foundation (kib)
MFC after:	1 week
Approved by:	re (marius)
Differential revision:	https://reviews.freebsd.org/D16881
2018-08-29 12:24:19 +00:00
Andrew Turner
9ea0458663 Use the correct register when storing the arm VFP state.
Previously we have been lucky where the state was already in r0, however
this is not guaranteed. Use the passed in register as the location to
store the upper half of the arm VFP registers rather than relying on it
being r0.

Approved by:	re (kib)
2018-08-27 10:08:27 +00:00
Mark Murray
19fa89e938 Remove the Yarrow PRNG algorithm option in accordance with due notice
given in random(4).

This includes updating of the relevant man pages, and no-longer-used
harvesting parameters.

Ensure that the pseudo-unit-test still does something useful, now also
with the "other" algorithm instead of Yarrow.

PR:		230870
Reviewed by:	cem
Approved by:	so(delphij,gtetlow)
Approved by:	re(marius)
Differential Revision:	https://reviews.freebsd.org/D16898
2018-08-26 12:51:46 +00:00
Alan Cox
49bfa624ac Eliminate the arena parameter to kmem_free(). Implicitly this corrects an
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().

Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions.  Use this flag to determine which
arena the kmem virtual addresses are returned to.

Eliminate UMA_SLAB_KRWX.  The introduction of VPO_KMEM_EXEC makes it
redundant.

Update the nearby comment for UMA_SLAB_KERNEL.

Reviewed by:	kib, markj
Discussed with:	jeff
Approved by:	re (marius)
Differential Revision:	https://reviews.freebsd.org/D16845
2018-08-25 19:38:08 +00:00
Warner Losh
592ffb2175 Revert drm2 removal.
Revert r338177, r338176, r338175, r338174, r338172

After long consultations with re@, core members and mmacy, revert
these changes. Followup changes will be made to mark them as
deprecated and prent a message about where to find the up-to-date
driver.  Followup commits will be made to make this clear in the
installer. Followup commits to reduce POLA in ways we're still
exploring.

It's anticipated that after the freeze, this will be removed in
13-current (with the residual of the drm2 code copied to
sys/arm/dev/drm2 for the TEGRA port's use w/o the intel or
radeon drivers).

Due to the impending freeze, there was no formal core vote for
this. I've been talking to different core members all day, as well as
Matt Macey and Glen Barber. Nobody is completely happy, all are
grudgingly going along with this. Work is in progress to mitigate
the negative effects as much as possible.

Requested by: re@ (gjb, rgrimes)
2018-08-24 00:02:00 +00:00
Emmanuel Vadot
4ca213c07a a10_timer: Update the driver so we can use it on other SoC
a10_timer is currently use in UP allwinner SoC (A10 and A13).
Those don't have the generic arm timer.
The arm generic timecounter is broken in the A64 SoC, some attempts have
been made to fix the glitch but users still reported some minor ones.
Since the A64 (and all Allwinner SoC) still have this timer controller, rework
the driver so we can use it in any SoC.
Since it doesn't have the 64 bits counter on all SoC, use one of the
generic 32 bits counter as the timecounter source.

PR:	229644
2018-08-23 18:46:05 +00:00
Emmanuel Vadot
55f3f71ca0 aw_mmc: Handle MMCBR_IVAR_RETUNE_REQ
Without this the mmc stack sometimes think that we are in in a retune
operation and some command like switch the bus width to 4 bits failed.
We now switch correctly to 4 bits mode for sd card.

Reported by:	jmg, others in pine64 irc channel
2018-08-23 18:33:42 +00:00
Mark Johnston
36716fe2e6 Prepare the kernel linker to handle PC-relative ifunc relocations.
The boot-time ifunc resolver assumes that it only needs to apply
IRELATIVE relocations to PLT entries.  With an upcoming optimization,
this assumption no longer holds, so add the support required to handle
PC-relative relocations targeting GNU_IFUNC symbols.
- Provide a custom symbol lookup routine that can be used in early boot.
  The default lookup routine uses kobj, which is not functional at that
  point.
- Apply all existing relocations during boot rather than filtering
  IRELATIVE relocations.
- Ensure that we continue to apply ifunc relocations in a second pass
  when loading a kernel module.

Reviewed by:	kib
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D16749
2018-08-22 20:44:30 +00:00
Matt Macy
a965e09972 disconnect drm2 from tegra build until made self-contained 2018-08-22 02:18:45 +00:00
Alan Cox
83a90bffd8 Eliminate kmem_malloc()'s unused arena parameter. (The arena parameter
became unused in FreeBSD 12.x as a side-effect of the NUMA-related
changes.)

Reviewed by:	kib, markj
Discussed with:	jeff, re@
Differential Revision:	https://reviews.freebsd.org/D16825
2018-08-21 16:43:46 +00:00