configuration from the FDT data, then set the pins into the requested
state. As part of this the gpio controller now reports the correct number
of pins instead of returning the number of bank * 32.
To allow for a future consolidated kernel we add the SOC_ALLWINNER_A10 and
SOC_ALLWINNER_A20 kernel options. These need to be set as appropriate for
the SoC the kernel will boot on.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D5177
are not utilized there. Only domain #0 is used and there is no reference
to it in the whole pmap-v6.c. Thus initialize domain access register in
locore-v6.c without reference too.
Before this change all mappings done by this function were executable
as pte entries have NOT EXECUTABLE bit.
The function is used only for static device mappings at present. Thus
this is also a fix as DEVICE memory should not be mapped as executable.
will allow for code that uses the old fdt_get_range and fdt_regsize
functions to find a range, map it, access, then unmap to replace this, up
to and including the map, with a call to OF_decode_addr.
As this function should only be used in the early boot code the unmap is
mostly do document we no longer need the mapping as it's a no-op, at least
on arm.
Reviewed by: jhibbits
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D5258
am335x_prcm driver which uses it. Used BUS_PASS_BUS is a quick pick
for now and may be revised when other drivers start using multipass
feature.
This is needed after an update of Linux dts files done in r295436.
(1) The channel mask is get from "brcm,dma-channel-mask" property of
dma node, and if not provided, from "broadcom,channels" property.
(2) Consequently, sdhci driver does not allocate any specific channel.
(3) Use CS_RESET bit for initial channel reset.
Differential Revision: https://reviews.freebsd.org/D4303
A10/A20 SoC. Based loosely on the submitters NetBSD driver, tested on
Cubieboard 2. Playback and capture are supported.
Submitted by: Jared McNeill <jmcneill@invisible.ca>
Differential Revision: https://reviews.freebsd.org/D5202
least the audio codec driver currently in review.
Submitted by: Jared McNeill <jmcneill@invisible.ca>
Differential Revision: https://reviews.freebsd.org/D5050
with this and an Allwinner SoC to power off.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D4954
Marvell twsi part, however uses different register locations, as such split
the existing driver into Marvell and Allwinner attachments.
While here clean a few style issues.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D4846
* Use the Linux compat string
* Use EARLY_DRIVER_MODULE to attach at the right time
* Add a generic A10 kernel config file
* A20 now use generic_timer
* Add two new dts files for Olimex boards
* Update our custom DTS file for A10 and A20 to use the same compatible
property names as the vendor ones.
Submitted by: Emmanuel Vadot <manu@bidouilliste.com>
Differential Revision: https://reviews.freebsd.org/D4792
which return -1 as well as on tier 1 archs. Remove block_userspace_access
used only in these implementations.
(1) These functions may be called in interrupt context and pcb_onfault
can be already set in this time. Thus, prior pcb_onfault must be saved
and restored afterwards.
(2) The check that an abort came either from nested interrupt or while
in critical section or holding not sleepable lock must be avoided for
this case.
These functions are called only for profiling reason, so there will be
only small gain by making the code more complex.
(1) Move cnt.v_trap increment to the beginning. There is cnt.v_vm_faults
counter in vm_fault(), so a number of hardware emulation aborts may be
get roughly as difference.
(2) Move kdb_reenter() up to not be ignored if pmap_fault() has failed.
(3) Update comments.
It turned out that devmap.c is not only file in which PTE_DEVICE
is used and simultaneously, built for both armv4 and armv6 platforms.
When I tried to build all arm kernels before r295168 commit, it was
hid by some other local changes in my tree. I hope that this is just
temporary workaround before VM_MEMATTR_DEVICE could be used instead of
PTE_DEVICE outside of pmap code for __ARM_ARCH < 6.
instead of hiding behind pmap_map_chunk(). It's not longer needed
after old pmap-v6 code was removed.
For compatibility with __ARM_ARCH < 6, define PTE_DEVICE in devmap.c
file. Certainly, it would be nice if VM_MEMATTR_DEVICE could be used
even for __ARM_ARCH < 6.
do not depend on pmap internals. This is a preparation for hiding
internal pmap definitions as much as possible from the rest of system.
Simultaneously, the protection argument evaluation is fixed. Happily,
it did not effect the mappings. And it's the reason why it was not fixed
earlier.
function is only called from vm_page_startup() and vm_reserv_startup().
I.e. during vm subsystem initialization. As VM_PROT_WRITE is always
used in these calls, the typo did not have any effect. Likely, it's
the reason why it wasn't discovered so long.
Use driver settable callbacks for handling of:
- core post reset
- reading actual port speed
Typically, OTG enabled EHCI cores wants setting of USBMODE register,
but this register is not defined in EHCI specification and different
cores can have it on different offset.
Also, for cores with TT extension, actual port speed must be determinable.
But again, EHCI specification not covers this so this patch provides
function for two most common variant of speed bits layout.
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D5088
Use per-CPU structure to store HW watchpoints registers state
for each CPU present in the system. Those registers will be restored
upon wake up from the STOP state if requested by the debug_monitor
code. The method is similar to the one introduced to AMD64.
We store all possible 16 registers for HW watchpoints
(maximum allowed by the architecture).
HW breakpoints are not maintained since they are used for single
stepping only.
Pointed out by: kib
Reviewed by: wma
No strong objections from: kib
Submitted by: Zbigniew Bodek <zbb@semihalf.com>
Obtained from: Semihalf
Sponsored by: Juniper Networks Inc.
Differential Revision: https://reviews.freebsd.org/D4338
POSIX requires these members to be of type void * rather than the
char * inherited from 4BSD. NetBSD and OpenBSD both changed their
fields to void * back in 1998. No new build failures were reported
via an exp-run.
PR: 206503 (exp-run)
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D5092
Summary:
Migrate to using the semi-opaque type rman_res_t to specify rman resources. For
now, this is still compatible with u_long.
This is step one in migrating rman to use uintmax_t for resources instead of
u_long.
Going forward, this could feasibly be used to specify architecture-specific
definitions of resource ranges, rather than baking a specific integer type into
the API.
This change has been broken out to facilitate MFC'ing drivers back to 10 without
breaking ABI.
Reviewed By: jhb
Sponsored by: Alex Perez/Inertial Computing
Differential Revision: https://reviews.freebsd.org/D5075
in elf_cpu_load_file(). The only time when the sync is needed is after
kernel module is loaded and the relocation info is processed. And it's
done in elf_cpu_load_file().
This allows, for example, UEFI pass a memory map with some ram in this
region, but for us to ignore it. This is the case when running under the
qemu virt machine type.
Sponsored by: ABT Systems Ltd
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
Even if data cache maintenance was done by IO code, the relocation
fixup process creates dirty cache entries that we must write back
before doing icache sync.
Reported by: Thiagarajan Venkatasubramanian <tvenkata at juniper.net>
Reviewed by: ian
pmap implementations on ARM. This way minidump code can be used without
any platform specific modification.
Also, this is the last piece missing for ARM_NEW_PMAP.
Differential Revision: https://reviews.freebsd.org/D5023
* Use the ARM PLATFORM framework
* Use ARM_INTRNG on teh A20 as it has a GICv2
* Add a method to find which Allwinner SoC we are running on
Differential Revision: https://reviews.freebsd.org/D5059
This is a stub for PMSU driver. Note that it cannot be used to set the
secondary core boot address during attach because drivers are attached
later than SI_SUB_CPU sysinit where cores are started.
Setting the boot address should be done manually in platform_mp_start_ap().
SMP is working fine with this commit and was enabled in Armada38x kernel
configuration file.
Obtained from: Semihalf
Sponsored by: Stormshield
Submitted by: Michal Stanek <mst@semihalf.com>
Differential revision: https://reviews.freebsd.org/D4427
- Add file sys/arm/mv/armada38x/armada38x_mp.c
- Set mp_maxid and mp_ncpus based on FDT unless SCU register indicates
only one core
- Boot CPU1 in platform_mp_start_ap()
- IPI range defined
Obtained from: Semihalf
Sponsored by: Stormshield
Submitted by: Michal Stanek <mst@semihalf.com>
Differential revision: https://reviews.freebsd.org/D4426
