Change OF_getencprop_alloc semantics to be combination of malloc and
OF_getencprop and return size of the property, not number of elements
allocated.
For the use cases where number of elements is preferred introduce
OF_getencprop_alloc_multi helper function that copies semantics
of OF_getencprop_alloc prior to this change.
This is to make OF_getencprop_alloc and OF_getencprop_alloc_multi
function signatures consistent with OF_getencprop_alloc and
OF_getencprop_alloc_multi.
Functionality-wise this patch is mostly rename of OF_getencprop_alloc
to OF_getencprop_alloc_multi except two calls in ofw_bus_setup_iinfo
where 1 was used as a block size.
OF_getprop_alloc takes element size argument and returns number of
elements in the property. There are valid use cases for such behavior
but mostly API consumers pass 1 as element size to get string
properties. What API users would expect from OF_getprop_alloc is to be
a combination of malloc + OF_getprop with the same semantic of return
value. This patch modifies API signature to match these expectations.
For the valid use cases with element size != 1 and to reduce
modification scope new OF_getprop_alloc_multi function has been
introduced that behaves the same way OF_getprop_alloc behaved prior to
this patch.
Reviewed by: ian, manu
Differential Revision: https://reviews.freebsd.org/D14850
According to device tree binding 'assigned-addresses' can refer to PCIE MMIO
register space. New function ofw_bus_assigned_addresses_to_rl is
provided to support it.
Submitted by: Rafal Kozik <rk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14750
OF_finddevices returns ((phandle_t)-1) in case of failure. Some code
in existing drivers checked return value to be equal to 0 or
less/equal to 0 which is also wrong because phandle_t is unsigned
type. Most of these checks were for negative cases that were never
triggered so trhere was no impact on functionality.
Reviewed by: nwhitehorn
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D14645
libfdt now provides methods to iterate through subnodes and properties in a
convenient fashion.
Replace our ofw_fdt_{peer,child} searches with calls to their corresponding
libfdt methods. Rework ofw_fdt_nextprop to use the
fdt_for_each_property_offset macro, making it even more obvious what it's
doing.
No functional change intended.
Reviewed by: nwhitehorn
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D14225
zero, matching the IEEE 1275 standard. Since these internal error paths
have never, to my knowledge, been taken, behavior is unchanged.
Reported by: gonzo
MFC after: 2 weeks
This reduces noise when kernel is compiled by newer GCC versions,
such as one used by external toolchain ports.
Reviewed by: kib, andrew(sys/arm and sys/arm64), emaste(partial), erj(partial)
Reviewed by: jhb (sys/dev/pci/* sys/kern/vfs_aio.c and sys/kern/kern_synch.c)
Differential Revision: https://reviews.freebsd.org/D10385
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
This patch modifies function ofw_fdt_setprop (called by OF_setprop),
so that it can add property, when replacing is not possible.
Adding property is needed to fixup FDT's that have missing
properties.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: nwhitehorn, cognet (mentor)
Approved by: cognet (mentor)
Obtained from: Semihalf
Differential Revision: https://reviews.freebsd.org/D11879
Before this patch function ofw_bus_find_compatible was using
memory allocations in order to find compatible node and the property's
length. This way there was always a suited buffer for property,
however this approach had also disadvantages - ofw_bus_find_compatible
couldn't be used when malloc is not available, e.g. during fdt fixup stage.
In order to remove the usage limitation of ofw_bus_find_compatible(),
this patch modifies the function to use ofw_bus_node_is_compatible()
(instead of the one without _int suffix), which uses a fixed
buffer on stack instead of dynamic allocations.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: nwhitehorn, cognet (mentor)
Approved by: cognet (mentor)
Obtained from: Semihalf
Differential Revision: https://reviews.freebsd.org/D11880
Sometimes it's convenient to provide fixup to many boards
that use the same SoC family (eg. Marvell Armada 38x).
Instead of putting multiple entries in fdt_fixup_table,
use one entry which refers to all boards with given SoC.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: nwhitehorn, cognet (mentor)
Approved by: cognet (mentor)
Obtained from: Semihalf
Differential Revision: https://reviews.freebsd.org/D11878
not consider a "disabled" cpu as a CPU we have to ignore, and we should use
them if they provide a "enable-method".
While I'm there, support "ok" as well as "okay", while ePAPR only accepts
"okay", linux accepts "ok" too so we can expect it to be used.
Reviewed by: andrew (partially)
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.
Submitted by: Jan Schaumann <jschauma@stevens.edu>
Pull Request: https://github.com/freebsd/freebsd/pull/96
Convert PCIe hot plug support over to asking the firmware, if any, for
permission to use the HotPlug hardware. Implement pci_request_feature
for ACPI. All other host pci connections to allowing all valid feature
requests.
Sponsored by: Netflix
method
Method could be used before we can access device_t structure.
As per simple phandle_t handle we can access FDT to check
if specified node has been enabled.
It will be used in Marvell's common configuration code.
Submitted by: Konrad Adamczyk <ka@semihalf.com>
Obtained from: Semihalf
Sponsored by: Stormshield
Reviewed by: zbb, meloun-miracle-cz
Differential revision: https://reviews.freebsd.org/D9218
Summary:
If the environment variable is set, U-boot adds a 'bootargs' property to
/chosen. This is already handled by ARM and MIPS, but should be handled in a
central location. For now, ofw_subr.c is a good place until we determine if it
should be moved to init_main.c, or somewhere more central to all architectures.
Eventually arm and mips should be modified to use ofw_parse_bootargs() as well,
rather than using the duplicate code already.
Reviewed By: adrian
Differential Revision: https://reviews.freebsd.org/D7846
Summary:
Some device trees put "fsl,ns16650" first in the compatible list. This causes
the probe code to choke, even though the device is compatible with ns16650, and
has it listed later in the tree.
Reviewed by: nwhitehorn
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D7676
- Read interrupt properties at bus enumeration time and store
it into global mapping table.
- At bus_activate_resource() time, given mapping entry is resolved and
connected to real interrupt source. A copy of mapping entry is attached
to given resource.
- At bus_setup_intr() time, mapping entry stored in resource is used
for delivery of requested interrupt configuration.
- For MSI/MSIX interrupts, mapping entry is created within
pci_alloc_msi()/pci_alloc_msix() call.
- For legacy PCI interrupts, mapping entry must be created within
pcib_route_interrupt() by pcib driver itself.
Reviewed by: nwhitehorn, andrew
Differential Revision: https://reviews.freebsd.org/D7493
Make FDT blob available via opaque hw.fdt.dtb sysctl, if a DTB has been
installed by the time sysctls are registered.
Reviewed by: andrew
Approved by: sjg (mentor)
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D7411
- add new rman for prefetchable memory. Is used only if given 'ranges'
property contains prefetchable memory range.
- not all ranges in 'ranges' property are subject for rman's filling.
Tegra for example, have two addition records which are used for
'pci 'register' -> 'assigned-address' -> 'ranges' machinery.
Add sc_ranges_mask for masking not rman related ranges.
- consistently pass unknown (not managed at this level) resources
allocation/release/adjust requests to parent.
MFC after: 3 weeks
translate the pci rid to a controller ID. The translation could be based
on the 'msi-map' OFW property, a similar ACPI option, or hard-coded for
hardware lacking the above options.
Reviewed by: wma
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
- Introduce new OF API function OF_prop_free to free memory allocated by
OF_getprop_alloc and OF_getencprop_alloc. Current code just calls free(9)
with M_OFWPROP memory class which assumes knowledge about OF_*prop_alloc
functions' internals and leads to unneccessary code coupling
- Convert some of the free(..., M_OFWPROP) instances to OF_prop_free
Files affected by this commit are the ones I was able to test on real
hardware. The rest of free(..., M_OFWPROP) instances will be handled with
idividual maintainers
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D6315
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
On some architectures, u_long isn't large enough for resource definitions.
Particularly, powerpc and arm allow 36-bit (or larger) physical addresses, but
type `long' is only 32-bit. This extends rman's resources to uintmax_t. With
this change, any resource can feasibly be placed anywhere in physical memory
(within the constraints of the driver).
Why uintmax_t and not something machine dependent, or uint64_t? Though it's
possible for uintmax_t to grow, it's highly unlikely it will become 128-bit on
32-bit architectures. 64-bit architectures should have plenty of RAM to absorb
the increase on resource sizes if and when this occurs, and the number of
resources on memory-constrained systems should be sufficiently small as to not
pose a drastic overhead. That being said, uintmax_t was chosen for source
clarity. If it's specified as uint64_t, all printf()-like calls would either
need casts to uintmax_t, or be littered with PRI*64 macros. Casts to uintmax_t
aren't horrible, but it would also bake into the API for
resource_list_print_type() either a hidden assumption that entries get cast to
uintmax_t for printing, or these calls would need the PRI*64 macros. Since
source code is meant to be read more often than written, I chose the clearest
path of simply using uintmax_t.
Tested on a PowerPC p5020-based board, which places all device resources in
0xfxxxxxxxx, and has 8GB RAM.
Regression tested on qemu-system-i386
Regression tested on qemu-system-mips (malta profile)
Tested PAE and devinfo on virtualbox (live CD)
Special thanks to bz for his testing on ARM.
Reviewed By: bz, jhb (previous)
Relnotes: Yes
Sponsored by: Alex Perez/Inertial Computing
Differential Revision: https://reviews.freebsd.org/D4544
Extract common code from PowerPC's ofw_pci
Import portions of the PowerPC OF PCI implementation into
new file "ofw_pci.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/ofw_pci.h.
This creates a new ofw_pci_write_ivar() function and modifies
ofw_pci_nranges(), ofw_pci_read_ivar(), ofw_pci_route_interrupt()
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.
Submitted by: Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Reviewed by: jhibbits, mmel
Differential Revision: https://reviews.freebsd.org/D4879
This needs to return to the drawing board as it breaks both
PowerPC and Sparc64 build.
Pointed out by: jhibbits
This simplifies checking for default resource range for bus_alloc_resource(),
and improves readability.
This is part of, and related to, the migration of rman_res_t from u_long to
uintmax_t.
Discussed with: jhb
Suggested by: marcel
Import portions of the PowerPC OF PCI implementation into
new file "ofw_pci.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/ofw_pci.h.
This creates a new ofw_pci_write_ivar() function and modifies
ofw_pci_nranges(), ofw_pci_read_ivar(), ofw_pci_route_interrupt() 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.
Submitted by: Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Reviewed by: jhibbits, mmel
Differential Revision: https://reviews.freebsd.org/D4879
Resource list for devices that are not ofwbus descendants, but
got to ofwbus method via bus_generic_release_resource() call chain,
cannot be found using BUS_GET_RESOURCE_LIST() used by ofwbus.
In that case, changing device's resource list should be avoided
(will not contain resource list prepared by ofw or simplebus).
Pointy-hat to: zbb
Reviewed by: wma
Obtained from: Semihalf
Sponsored by: Cavium
Differential Revision: https://reviews.freebsd.org/D5304
