When building the boot wrapper assembly files with clang after
commit 648a1783fe ("powerpc/boot: Fix boot wrapper code generation
with CONFIG_POWER10_CPU"), the following warnings appear for each file
built:
'-prefixed' is not a recognized feature for this target (ignoring feature)
'-pcrel' is not a recognized feature for this target (ignoring feature)
While it is questionable whether or not LLVM should be emitting a
warning when passed negative versions of code generation flags when
building assembly files (since it does not emit a warning for the
altivec and vsx flags), it is easy enough to work around this by just
moving the disabled flags to BOOTCFLAGS after the assignment of
BOOTAFLAGS, so that they are not added when building assembly files.
Do so to silence the warnings.
Fixes: 648a1783fe ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU")
Link: https://github.com/ClangBuiltLinux/linux/issues/1839
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230427-remove-power10-args-from-boot-aflags-clang-v1-1-9107f7c943bc@kernel.org
Based on documentation revision dates, this MPC82xx pq2fads system
predates the MPC8272-ADS variant by about a year and only has 1/2
the amount of RAM (32MB) -- largely making it useless with a modern
v6.x kernel from today.
Similar to the MPC8272-ADS the pq2fads also supported other 82xx CPU
variants, had 8MB flash, and like the 8272 ADS platform, was on a fairly
large PCB in order to have space for breakout connectors for all features.
These 82xx platforms are two decades old, and originally made for a
small group of industry related people in order to assist in new OEM
board designs. Given that, it makes sense to remove support today.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230224204959.17425-3-paul.gortmaker@windriver.com
The MPC8272-ADS also supported other 82xx CPU variants, had 64MB RAM,
8MB flash, and like the 85xx ADS platforms, was on a fairly large PCB
in order to have space for breakout connectors for all the features.
These 82xx platforms are two decades old, and originally made for a
small group of industry related people in order to assist in new OEM
board designs. Given that, it makes sense to remove support today.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230224204959.17425-2-paul.gortmaker@windriver.com
This evaluation platform was essentially a single core 8641 with
integrated graphics/display support - in an effort to reduce chip count
on kiosk and similar applications.
Compared to other evaluation platforms considered for removal in other
recent commits, this platform was relatively rare. Unlike all the other
10+ platforms, I couldn't find any documentation on it - just a link to
downloading the 2007 era BSP in "LTIB" format as was done back then.
With all that in mind, it seems prudent to remove it here in 2023.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
[mpe: Drop stale reference to MPC8610_HPCD in 86xx/Kconfig]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230225201318.3682-4-paul.gortmaker@windriver.com
There is no denying that this was an interesting platform in its day.
Access to a SMP powerpc platform became a bit more obtainable for folks
in the BSP industry in the 2007 era, thanks to this platform.
Add to that the move to the black Antec case vs. the generic white 2005
era case of the MPC8548CDS or the retro 1950s 1/2 height horizontal case
of the HPC II, and it was pretty interesting to people like myself then.
However, like all the other evaluation platforms, the overall system
was complex out of necessity, as it tried to showcase all possible
features and use-cases. That included an AMP option, where you could run
two bootloaders and two kernels over two serial consoles. Peripheral
sharing got a bit more tricky when you got to the hard disk and similar.
In any case we still have the same circumstance. A relatively rare and
expensive evaluation platform that is now 15+ years old and not out there
in large numbers in the general public. Removal in 2023 just makes sense.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230225201318.3682-3-paul.gortmaker@windriver.com
This was an interesting platform - it was the 1st instance of a
respin of earlier 130nm 74xx CPUs on 90nm and systems using MPC7448
were positioned as a rack server platform solution.
Given that, the evaluation platform (at least the one I had) was shipped
in a horizontal 1/2 height Antec desktop case with retro styling and
colours, despite the fact the docs explicitly stated that the HPC II is
not a desktop machine (noting it had no gfx or legacy PC I/O support).
Historic trivia aside, this was the 1st introduction of the e600
procfam as an evolution from the earlier G4.
However even with the claim to being "1st e600" it seems the 2005+
era was turning its attention to multicore support and from my memory
this poor guy was quickly overshadowed by the dual core MPC8641D.
All that aside, we are once again looking at 15+ year old evaluation
platforms that were not widely distributed, so 2023 removal makes sense.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230225201318.3682-2-paul.gortmaker@windriver.com
This final variant in the e300 family of Modular Development System
(MDS) in this series was actually aimed at feature reduction - things
like floating point and ethernet were removed in order to make for a
lower power and lower cost system.
Like all the MDS systems, it was meant as a vehicle to get the CPU out
early to hardware OEMs so software and board development could take place
in parallel.
These were made in limited numbers and availability preference was given
to partners who were planning to make their own boards.
Given that the whole reason for existence was to assist in enabling new
board designs [not happening for 10+ years], and that they weren't
generally available, and that the hardware wasn't really hobbyist friendly
even for retro computing, it makes sense to retire the support for this
particular platform.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
[mpe: Drop stale reference to MPC832x_MDS in arch/powerpc/boot/Makefile]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-5-paul.gortmaker@windriver.com
This next evolutionary step in the e300 family of Modular Development
System (MDS) still has, at its core component, a full length card with a
PCI edge. No case. Serial and network connectors were on card, so it
could optionally be fitted with plastic stand-offs and run stand-alone
off a power brick.
This is very similar to the MPC834x_MDS and MPC836x_MDS removed in the
prior commits, but with this board variant as yet another evolutionary
step. SATA and PCI-e were now available. But overall the form factor
and design goals were unchanged.
Like all the MDS systems, it was meant as a vehicle to get the CPU out
early to hardware OEMs so software and board development could take place
in parallel.
These were made in limited numbers and availability preference was given
to partners who were planning to make their own boards.
Given that the whole reason for existence was to assist in enabling new
board designs [not happening for 10+ years], and that they weren't
generally available, and that the hardware wasn't really hobbyist friendly
even for retro computing, it makes sense to retire the support for this
particular platform.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-4-paul.gortmaker@windriver.com
This 2006 era Modular Development System (MDS) has, at its core component,
a full length card with a PCI edge. No case. Serial and network
connectors were on card, so it could optionally be fitted with plastic
stand-offs and run stand-alone off a power brick.
This is very similar to the MPC834x_MDS removed in the prior commit, but
with this board variant as an evolutionary step. DDR2 was now an option,
and the card edge was revised down to PCI-32 as PCI-64 never got traction.
But overall the form factor and design goals were unchanged.
Like all the MDS systems, it was meant as a vehicle to get the CPU out
early to hardware OEMs so software and board development could take place
in parallel.
To that end, the BGA CPU was held in place with a mechanical spring loaded
pressure assembly (vs. solder) so that early rev silicon could be replaced
in the field. Not for COTS deployment!
These were made in limited numbers and availability preference was given
to partners who were planning to make their own boards.
Given that the whole reason for existence was to assist in enabling new
board designs [not happening for 10+ years], and that they weren't
generally available, and that the hardware wasn't really hobbyist friendly
even for retro computing, it makes sense to retire the support for this
particular platform.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
[mpe: Drop stale reference to MPC836x_MDS in arch/powerpc/boot/Makefile]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-3-paul.gortmaker@windriver.com
This 2006 era Modular Development System (MDS) has, at its core
component, a full length card with a PCI-64 edge. No case. Serial
and network connectors were on card, so it could optionally be fitted
with plastic stand-offs and run stand-alone off a power brick.
Like all the MDS systems, it was meant as a vehicle to get the CPU
out early to hardware OEMs so software and board development could
take place in parallel.
To that end, the BGA CPU was held in place with a mechanical spring
loaded pressure assembly (vs. solder) so that early rev silicon could
be replaced in the field. Not for COTS deployment!
These were made in limited numbers and availability preference was
given to partners who were planning to make their own boards, like
our WR SBC8349 [since retired in v4.18 (2017, commit 3bc6cf5a86)]
Given that the whole reason for existence was to assist in enabling
new board designs [not happening for 10+ years], and that they weren't
generally available, and that the hardware wasn't really hobbyist
friendly even for retro computing, it makes sense to retire the
support for this platform.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230220115913.25811-2-paul.gortmaker@windriver.com
"fsl,P2020RDB-PC" compatible string was present in Turris 1.x DTS file just
because Linux kernel required it for proper detection of P2020 processor
during boot.
This was quite a hack as CZ.NIC Turris 1.x is not compatible with
Freescale P2020-RDB-PC board.
Now when kernel has generic unified support for boards with P2020
processors, there is no need to have this "hack" in turris1x.dts file.
So remove incorrect "fsl,P2020RDB-PC" compatible string from turris1x.dts.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230408140122.25293-14-pali@kernel.org
-mcpu=power10 will generate prefixed and pcrel code by default, which
we do not support. The general kernel disables these with cflags, but
those were missed for the boot wrapper.
Fixes: 4b2a9315f2 ("powerpc/64s: POWER10 CPU Kconfig build option")
Cc: stable@vger.kernel.org # v6.1+
Reported-by: Danny Tsen <dtsen@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230407040909.230998-1-npiggin@gmail.com
Use the preferred form of branch-and-link for finding the current
address so objtool doesn't think it is an unannotated intra-function
call.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230407040924.231023-1-npiggin@gmail.com
When CONFIG_PPC64_ELF_ABI_V2 is enabled with clang through
CONFIG_PPC64_BIG_ENDIAN_ELF_ABI_V2, building the powerpc boot wrapper
in 32-bit mode (i.e. with CONFIG_PPC64_BOOT_WRAPPER=n) fails with:
error: unknown target ABI 'elfv2'
The ABI cannot be changed with '-m32'; GCC silently accepts it but clang
errors out. Only provide '-mabi=elfv2' when CONFIG_PPC64_BOOT_WRAPPER is
enabled, which is the only way '-mabi=elfv2' will be useful.
Tested-by: "Erhard F." <erhard_f@mailbox.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230118-ppc64-elfv2-llvm-v1-1-b9e2ec9da11d@kernel.org
Since commit eca70102cf ("net: dsa: felix: add support for changing
DSA master") included in kernel v6.1, the driver supports 2 CPU ports,
and they can be put in a LAG, for example (see
Documentation/networking/dsa/configuration.rst for more details).
Defining the second CPU port in the device tree should not cause any
compatibility issue, because the default CPU port was &seville_port8
before this change, and still is &seville_port8 now (the numerically
first CPU port is used by default).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It looks like U-Boot fails to start the kernel properly when the
compatible string of the board isn't fsl,T1040RDB, so stop overriding it
from the rev-a.dts.
Fixes: 5ebb747492 ("powerpc: dts: t1040rdb: fix ports names for Seville Ethernet switch")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Support for configuring secure boot with user-defined keys on PowerVM LPARs.
- Simplify the replay of soft-masked IRQs by making it non-recursive.
- Add support for KCSAN on 64-bit Book3S.
- Improvements to the API & code which interacts with RTAS (pseries firmware).
- Change 32-bit powermac to assign PCI bus numbers per domain by default.
- Some improvements to the 32-bit BPF JIT.
- Various other small features and fixes.
Thanks to: Anders Roxell, Andrew Donnellan, Andrew Jeffery, Benjamin Gray, Christophe
Leroy, Frederic Barrat, Ganesh Goudar, Geoff Levand, Greg Kroah-Hartman, Jan-Benedict
Glaw, Josh Poimboeuf, Kajol Jain, Laurent Dufour, Mahesh Salgaonkar, Mathieu Desnoyers,
Mimi Zohar, Murphy Zhou, Nathan Chancellor, Nathan Lynch, Nayna Jain, Nicholas Piggin,
Pali Rohár, Petr Mladek, Rohan McLure, Russell Currey, Sachin Sant, Sathvika Vasireddy,
Sourabh Jain, Stefan Berger, Stephen Rothwell, Sudhakar Kuppusamy.
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Merge tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Support for configuring secure boot with user-defined keys on PowerVM
LPARs
- Simplify the replay of soft-masked IRQs by making it non-recursive
- Add support for KCSAN on 64-bit Book3S
- Improvements to the API & code which interacts with RTAS (pseries
firmware)
- Change 32-bit powermac to assign PCI bus numbers per domain by
default
- Some improvements to the 32-bit BPF JIT
- Various other small features and fixes
Thanks to Anders Roxell, Andrew Donnellan, Andrew Jeffery, Benjamin
Gray, Christophe Leroy, Frederic Barrat, Ganesh Goudar, Geoff Levand,
Greg Kroah-Hartman, Jan-Benedict Glaw, Josh Poimboeuf, Kajol Jain,
Laurent Dufour, Mahesh Salgaonkar, Mathieu Desnoyers, Mimi Zohar, Murphy
Zhou, Nathan Chancellor, Nathan Lynch, Nayna Jain, Nicholas Piggin, Pali
Rohár, Petr Mladek, Rohan McLure, Russell Currey, Sachin Sant, Sathvika
Vasireddy, Sourabh Jain, Stefan Berger, Stephen Rothwell, and Sudhakar
Kuppusamy.
* tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (114 commits)
powerpc/pseries: Avoid hcall in plpks_is_available() on non-pseries
powerpc: dts: turris1x.dts: Set lower priority for CPLD syscon-reboot
powerpc/e500: Add missing prototype for 'relocate_init'
powerpc/64: Fix unannotated intra-function call warning
powerpc/epapr: Don't use wrteei on non booke
powerpc: Pass correct CPU reference to assembler
powerpc/mm: Rearrange if-else block to avoid clang warning
powerpc/nohash: Fix build with llvm-as
powerpc/nohash: Fix build error with binutils >= 2.38
powerpc/pseries: Fix endianness issue when parsing PLPKS secvar flags
macintosh: windfarm: Use unsigned type for 1-bit bitfields
powerpc/kexec_file: print error string on usable memory property update failure
powerpc/machdep: warn when machine_is() used too early
powerpc/64: Replace -mcpu=e500mc64 by -mcpu=e5500
powerpc/eeh: Set channel state after notifying the drivers
selftests/powerpc: Fix incorrect kernel headers search path
powerpc/rtas: arch-wide function token lookup conversions
powerpc/rtas: introduce rtas_function_token() API
powerpc/pseries/lpar: convert to papr_sysparm API
powerpc/pseries/hv-24x7: convert to papr_sysparm API
...
Due to CPLD firmware bugs, set CPLD syscon-reboot priority level to 64
(between rstcr and watchdog) to ensure that rstcr's global-utilities reset
method which is preferred stay as default one, and to ensure that CPLD
syscon-reboot is more preferred than watchdog reset method.
Fixes: 0531a4abd1 ("powerpc: dts: turris1x.dts: Add CPLD reboot node")
Depends-on: e6333293f2 ("power: reset: syscon-reboot: Add support for specifying priority")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230220080435.4237-1-pali@kernel.org
When CONFIG_TARGET_CPU is specified then pass its value to the compiler
-mcpu option. This fixes following build error when building kernel with
powerpc e500 SPE capable cross compilers:
BOOTAS arch/powerpc/boot/crt0.o
powerpc-linux-gnuspe-gcc: error: unrecognized argument in option ‘-mcpu=powerpc’
powerpc-linux-gnuspe-gcc: note: valid arguments to ‘-mcpu=’ are: 8540 8548 native
make[1]: *** [arch/powerpc/boot/Makefile:231: arch/powerpc/boot/crt0.o] Error 1
Similar change was already introduced for the main powerpc Makefile in
commit 446cda1b21 ("powerpc/32: Don't always pass -mcpu=powerpc to the
compiler").
Fixes: 40a75584e5 ("powerpc/boot: Build wrapper for an appropriate CPU")
Cc: stable@vger.kernel.org # v5.19+
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2ae3ae5887babfdacc34435bff0944b3f336100a.1674632329.git.christophe.leroy@csgroup.eu
- Fix a build failure with some versions of ld that have an odd version string.
- Fix incorrect use of mutex in the IMC PMU driver.
Thanks to: Kajol Jain, Michael Petlan, Ojaswin Mujoo, Peter Zijlstra, Yang Yingliang.
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Merge tag 'powerpc-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix a build failure with some versions of ld that have an odd version
string
- Fix incorrect use of mutex in the IMC PMU driver
Thanks to Kajol Jain, Michael Petlan, Ojaswin Mujoo, Peter Zijlstra, and
Yang Yingliang.
* tag 'powerpc-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s/hash: Make stress_hpt_timer_fn() static
powerpc/imc-pmu: Fix use of mutex in IRQs disabled section
powerpc/boot: Fix incorrect version calculation issue in ld_version
The ld_version() function computes the wrong version value for certain
ld versions such as the following:
$ ld --version
GNU ld (GNU Binutils; SUSE Linux Enterprise 15)
2.37.20211103-150100.7.37
For input 2.37.20211103, the value computed is 202348030000 which is
higher than the value for a later version like 2.39.0, which is
23900000.
This issue was highlighted because with the above ld version, the
powerpc kernel build started failing with ld error: "unrecognized option
--no-warn-rwx-segments". This was caused due to the recent commit
579aee9fc5 ("powerpc: suppress some linker warnings in recent linker
versions") which added the --no-warn-rwx-segments linker flag if the ld
version is greater than 2.39.
Due to the bug in ld_version(), ld version 2.37.20111103 is wrongly
calculated to be greater than 2.39 and the unsupported flag is added.
To fix it, if version is of the form x.y.z and length(z) == 8, then most
probably it is a date [yyyymmdd] commonly used for release snapshots and
not an actual new version. Hence, ignore the date part replacing it with
0.
Fixes: 579aee9fc5 ("powerpc: suppress some linker warnings in recent linker versions")
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
[mpe: Tweak change log wording/formatting, add Fixes tag]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230104202437.90039-1-ojaswin@linux.ibm.com
There aren't enough resources to run these ports at 10G speeds. Disable
10G for these ports, reverting to the previous speed.
Fixes: 36926a7d70 ("powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G")
Reported-by: Camelia Alexandra Groza <camelia.groza@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Camelia Groza <camelia.groza@nxp.com>
Tested-by: Camelia Groza <camelia.groza@nxp.com>
Link: https://lore.kernel.org/r/20221216172937.2960054-1-sean.anderson@seco.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Add powerpc qspinlock implementation optimised for large system scalability and
paravirt. See the merge message for more details.
- Enable objtool to be built on powerpc to generate mcount locations.
- Use a temporary mm for code patching with the Radix MMU, so the writable mapping is
restricted to the patching CPU.
- Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI.
- Sanitise user registers on interrupt entry on 64-bit Book3S.
- Many other small features and fixes.
Thanks to: Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen
Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin
Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven,
Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain,
Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao,
Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure,
Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang
Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, Wolfram Sang.
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Merge tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add powerpc qspinlock implementation optimised for large system
scalability and paravirt. See the merge message for more details
- Enable objtool to be built on powerpc to generate mcount locations
- Use a temporary mm for code patching with the Radix MMU, so the
writable mapping is restricted to the patching CPU
- Add an option to build the 64-bit big-endian kernel with the ELFv2
ABI
- Sanitise user registers on interrupt entry on 64-bit Book3S
- Many other small features and fixes
Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn
Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET,
Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang,
Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A.
R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol
Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan
Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin,
Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika
Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas
Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng,
XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu,
and Wolfram Sang.
* tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits)
powerpc/code-patching: Fix oops with DEBUG_VM enabled
powerpc/qspinlock: Fix 32-bit build
powerpc/prom: Fix 32-bit build
powerpc/rtas: mandate RTAS syscall filtering
powerpc/rtas: define pr_fmt and convert printk call sites
powerpc/rtas: clean up includes
powerpc/rtas: clean up rtas_error_log_max initialization
powerpc/pseries/eeh: use correct API for error log size
powerpc/rtas: avoid scheduling in rtas_os_term()
powerpc/rtas: avoid device tree lookups in rtas_os_term()
powerpc/rtasd: use correct OF API for event scan rate
powerpc/rtas: document rtas_call()
powerpc/pseries: unregister VPA when hot unplugging a CPU
powerpc/pseries: reset the RCU watchdogs after a LPM
powerpc: Take in account addition CPU node when building kexec FDT
powerpc: export the CPU node count
powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state
powerpc/dts/fsl: Fix pca954x i2c-mux node names
cxl: Remove unnecessary cxl_pci_window_alignment()
selftests/powerpc: Fix resource leaks
...
"make dtbs_check":
arch/powerpc/boot/dts/fsl/t1040rdb-rev-a.dtb: pca9546@77: $nodename:0: 'pca9546@77' does not match '^(i2c-?)?mux'
From schema: Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
arch/powerpc/boot/dts/fsl/t1024qds.dtb: pca9547@77: Unevaluated properties are not allowed ('#address-cells', '#size-cells', 'i2c@0', 'i2c@2', 'i2c@3' were unexpected)
From schema: Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
...
Fix this by renaming pca954x nodes to "i2c-mux", to match the I2C bus
multiplexer/switch DT bindings and the Generic Names Recommendation in
the Devicetree Specification.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6c5d86c49ac170e9d56ab121ea0602f3873849ca.1669999298.git.geert+renesas@glider.be
Channel 0 of SA56004ED chip refers to internal SA56004ED chip sensor (chip
itself is located on the board) and channel 1 of SA56004ED chip refers to
external sensor which is connected to temperature diode of the P2020 CPU.
Fixes: 54c15ec3b7 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930123901.10251-1-pali@kernel.org
The latest version of grep claims the egrep is now obsolete so the build
now contains warnings that look like:
egrep: warning: egrep is obsolescent; using grep -E
fix this up by moving the related file to use "grep -E" instead.
sed -i "s/egrep/grep -E/g" `grep egrep -rwl arch/powerpc`
Here are the steps to install the latest grep:
wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
tar xf grep-3.8.tar.gz
cd grep-3.8 && ./configure && make
sudo make install
export PATH=/usr/local/bin:$PATH
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1668764429-11540-1-git-send-email-yangtiezhu@loongson.cn
This is a follow on from commit
0d362be5b1 ("Makefile: link with -z noexecstack --no-warn-rwx-segments")
for arch/powerpc/boot to address wanrings like:
ld: warning: opal-calls.o: missing .note.GNU-stack section implies executable stack
ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions
This fixes issue https://github.com/linuxppc/issues/issues/417
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221010165721.106267e6@canb.auug.org.au
This is the register layout of the litesd peripheral for the fusesoc
based Microwatt SoC.
It requires a description of the system clock, which is hardcoded to
100MHz.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930065012.2860577-1-joel@jms.id.au
This switches PIKA Warp away from legacy gpio API and to newer gpiod
API, so that we can eventually deprecate the former.
Because LEDs are normally driven by leds-gpio driver, but the
platform code also wants to access the LEDs during thermal shutdown,
and gpiod API does not allow locating GPIO without requesting it,
the platform code is now responsible for locating GPIOs through device
tree and requesting them. It then constructs platform data for
leds-gpio platform device and registers it. This allows platform
code to retain access to LED GPIO descriptors and use them when needed.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YzKSLcrYmV5kjyeX@google.com
Now that we actually read registers from QSGMII PCSs, it's important
that we have the correct address (instead of hoping that we're the MAC
with all the QSGMII PCSs on its bus). This adds nodes for the QSGMII
PCSs. They have the same addresses on all SoCs (e.g. if QSGMIIA is
present it's used for MACs 1 through 4).
Since the first QSGMII PCSs share an address with the SGMII and XFI
PCSs, we only add new nodes for PCSs 2-4. This avoids address conflicts
on the bus.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On the T208X SoCs, MAC1 and MAC2 support XGMII. Add some new MAC dtsi
fragments, and mark the QMAN ports as 10G.
Fixes: da414bb923 ("powerpc/mpc85xx: Add FSL QorIQ DPAA FMan support to the SoC device tree(s)")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Remove potentially incomplete targets when Kbuid is interrupted by
SIGINT etc. in case GNU Make may miss to do that when stderr is piped
to another program.
- Rewrite the single target build so it works more correctly.
- Fix rpm-pkg builds with V=1.
- List top-level subdirectories in ./Kbuild.
- Ignore auto-generated __kstrtab_* and __kstrtabns_* symbols in kallsyms.
- Avoid two different modules in lib/zstd/ having shared code, which
potentially causes building the common code as build-in and modular
back-and-forth.
- Unify two modpost invocations to optimize the build process.
- Remove head-y syntax in favor of linker scripts for placing particular
sections in the head of vmlinux.
- Bump the minimal GNU Make version to 3.82.
- Clean up misc Makefiles and scripts.
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Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Remove potentially incomplete targets when Kbuid is interrupted by
SIGINT etc in case GNU Make may miss to do that when stderr is piped
to another program.
- Rewrite the single target build so it works more correctly.
- Fix rpm-pkg builds with V=1.
- List top-level subdirectories in ./Kbuild.
- Ignore auto-generated __kstrtab_* and __kstrtabns_* symbols in
kallsyms.
- Avoid two different modules in lib/zstd/ having shared code, which
potentially causes building the common code as build-in and modular
back-and-forth.
- Unify two modpost invocations to optimize the build process.
- Remove head-y syntax in favor of linker scripts for placing
particular sections in the head of vmlinux.
- Bump the minimal GNU Make version to 3.82.
- Clean up misc Makefiles and scripts.
* tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (41 commits)
docs: bump minimal GNU Make version to 3.82
ia64: simplify esi object addition in Makefile
Revert "kbuild: Check if linker supports the -X option"
kbuild: rebuild .vmlinux.export.o when its prerequisite is updated
kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o
zstd: Fixing mixed module-builtin objects
kallsyms: ignore __kstrtab_* and __kstrtabns_* symbols
kallsyms: take the input file instead of reading stdin
kallsyms: drop duplicated ignore patterns from kallsyms.c
kbuild: reuse mksysmap output for kallsyms
mksysmap: update comment about __crc_*
kbuild: remove head-y syntax
kbuild: use obj-y instead extra-y for objects placed at the head
kbuild: hide error checker logs for V=1 builds
kbuild: re-run modpost when it is updated
kbuild: unify two modpost invocations
kbuild: move vmlinux.o rule to the top Makefile
kbuild: move .vmlinux.objs rule to Makefile.modpost
kbuild: list sub-directories in ./Kbuild
Makefile.compiler: replace cc-ifversion with compiler-specific macros
...
Kbuild builds init/built-in.a twice; first during the ordinary
directory descending, second from scripts/link-vmlinux.sh.
We do this because UTS_VERSION contains the build version and the
timestamp. We cannot update it during the normal directory traversal
since we do not yet know if we need to update vmlinux. UTS_VERSION is
temporarily calculated, but omitted from the update check. Otherwise,
vmlinux would be rebuilt every time.
When Kbuild results in running link-vmlinux.sh, it increments the
version number in the .version file and takes the timestamp at that
time to really fix UTS_VERSION.
However, updating the same file twice is a footgun. To avoid nasty
timestamp issues, all build artifacts that depend on init/built-in.a
are atomically generated in link-vmlinux.sh, where some of them do not
need rebuilding.
To fix this issue, this commit changes as follows:
[1] Split UTS_VERSION out to include/generated/utsversion.h from
include/generated/compile.h
include/generated/utsversion.h is generated just before the
vmlinux link. It is generated under include/generated/ because
some decompressors (s390, x86) use UTS_VERSION.
[2] Split init_uts_ns and linux_banner out to init/version-timestamp.c
from init/version.c
init_uts_ns and linux_banner contain UTS_VERSION. During the ordinary
directory descending, they are compiled with __weak and used to
determine if vmlinux needs relinking. Just before the vmlinux link,
they are compiled without __weak to embed the real version and
timestamp.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
uImage boot wrapper should not use SPE instructions, like kernel itself.
Boot wrapper has already disabled Altivec and VSX instructions but not SPE.
Options -mno-spe and -mspe=no already set when compilation of kernel, but
not when compiling uImage wrapper yet. Fix it.
Cc: stable@vger.kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220827134454.17365-1-pali@kernel.org
There are still some board device tree files without Power ISA properties
which have Freescale e500v1 cores, namely those which are based on
Freescale mpc8540, mpc8541, mpc8555 and mpc8560 processors.
So include newly introduced e500v1_power_isa.dtsi file in devices tree
files with those processors.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220902212103.22534-2-pali@kernel.org
Commit 2eb2800643 ("powerpc/e500v2: Add Power ISA properties to comply
with ePAPR 1.1") introduced new include file e500v2_power_isa.dtsi and
should have used it for all e500v2 platforms. But apparently it was used
also for e500v1 platforms mpc8540, mpc8541, mpc8555 and mpc8560.
e500v1 cores compared to e500v2 do not support double precision floating
point SPE instructions. Hence power-isa-sp.fd should not be set on e500v1
platforms, which is in e500v2_power_isa.dtsi include file.
Fix this issue by introducing a new e500v1_power_isa.dtsi include file and
use it in all e500v1 device tree files.
Fixes: 2eb2800643 ("powerpc/e500v2: Add Power ISA properties to comply with ePAPR 1.1")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220902212103.22534-1-pali@kernel.org
Use helper macros to access global variables, and place them in .data
sections rather than in .toc. Putting addresses in TOC is not required
because the kernel is linked with a single TOC.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220926034057.2360083-3-npiggin@gmail.com
DSA cpu port node has to be marked with "cpu" label.
So fix it for both cpu port nodes.
Fixes: 54c15ec3b7 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220827131538.14577-1-pali@kernel.org
Partition partition@20000 contains generic kernel image and it does not
have to be used only for rescue purposes. Partition partition@1c0000
contains bootable rescue system and partition partition@340000 contains
factory image/data for restoring to NAND. So change partition labels to
better fit their purpose by removing possible misleading substring "rootfs"
from these labels.
Fixes: 54c15ec3b7 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220830225500.8856-1-pali@kernel.org
Commit 956b200a84 ("spi: spidev: Warn loudly if instantiated from DT
as "spidev"") states that there should not be spidev nodes in DTs.
Remove this non-HW description. There won't be a regression because it
won't bind since 2015 anyhow.
Fixes: 5d1d67e361 ("powerpc/82xx: add SPI support for mgcoge")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220824082130.21934-3-wsa+renesas@sang-engineering.com
These files are all plain GPL 2.0, with a second sentence about being
licensed as-is.
Similar to the rule in commit 577b61cee5 ("treewide: Replace GPLv2
boilerplate/reference with SPDX - gpl-2.0_398.RULE").
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220819110430.433984-1-mpe@ellerman.id.au
DT law_trgt_if property defines Local Access Window Target Interface.
Local Access Window Target Interface is used for identifying individual
peripheral and mapping its memory to CPU. Interface id is defined by
hardware itself.
U-Boot uses law_trgt_if DT property in PCIe nodes for configuring memory
mapping of individual PCIe controllers.
Linux kernel fsl_pci.c driver currently does not touch Local Access Window
and expects that U-Boot configures it properly.
Add law_trgt_if property to PCIe DT nodes for P2020. This allows usage of
kernel P2020 PCIe DT nodes in U-Boot. And therefore allows to share P2020
DTS files between Linux kernel and U-Boot.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220504180822.29782-1-pali@kernel.org
CPLD firmware can reset board by writing value 0x01 at CPLD memory offset
0x0d. Define syscon-reboot node for this reset support.
Fixes: 54c15ec3b7 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220713134429.18748-1-pali@kernel.org
- Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT).
- Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later).
- Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ.
- Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later.
- Drop support for system call instruction emulation.
- Many other small features and fixes.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas Sanjaya, Bjorn
Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian King, Daniel Axtens, Dwaipayan
Ray, Fabiano Rosas, Finn Thain, Frank Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu
Hua, Haowen Bai, Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing
Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof Kozlowski, Laurent
Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes, Miaoqian Lin, Minghao Chi, Nathan
Chancellor, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár,
Paul Mackerras, Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib
Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang wangx, Xiaomeng Tong,
Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing, Yu Kuai, Zheng Bin, Zou Wei, Zucheng
Zheng.
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Merge tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)
- Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later)
- Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ
- Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later
- Drop support for system call instruction emulation
- Many other small features and fixes
Thanks to Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas
Sanjaya, Bjorn Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian
King, Daniel Axtens, Dwaipayan Ray, Fabiano Rosas, Finn Thain, Frank
Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu Hua, Haowen Bai,
Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing
Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof
Kozlowski, Laurent Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes,
Miaoqian Lin, Minghao Chi, Nathan Chancellor, Naveen N. Rao, Nicholas
Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár, Paul Mackerras,
Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib
Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang
wangx, Xiaomeng Tong, Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing,
Yu Kuai, Zheng Bin, Zou Wei, and Zucheng Zheng.
* tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (200 commits)
powerpc/64: Include cache.h directly in paca.h
powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set
powerpc/xics: Include missing header
powerpc/powernv/pci: Drop VF MPS fixup
powerpc/fsl_book3e: Don't set rodata RO too early
powerpc/microwatt: Add mmu bits to device tree
powerpc/powernv/flash: Check OPAL flash calls exist before using
powerpc/powermac: constify device_node in of_irq_parse_oldworld()
powerpc/powermac: add missing g5_phy_disable_cpu1() declaration
selftests/powerpc/pmu: fix spelling mistake "mis-match" -> "mismatch"
powerpc: Enable the DAWR on POWER9 DD2.3 and above
powerpc/64s: Add CPU_FTRS_POWER10 to ALWAYS mask
powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask
powerpc: Fix all occurences of "the the"
selftests/powerpc/pmu/ebb: remove fixed_instruction.S
powerpc/platforms/83xx: Use of_device_get_match_data()
powerpc/eeh: Drop redundant spinlock initialization
powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
powerpc/pseries/vas: Call misc_deregister if sysfs init fails
powerpc/papr_scm: Fix leaking nvdimm_events_map elements
...
In commit 5402e239d0 ("powerpc/64s: Get LPID bit width from device
tree") the kernel tried to determine the pid and lpid bits from the
device tree. If they are not found, there is a fallback, but Microwatt
wasn't covered as it has the unusual configuration of being both !HV and
bare metal.
Set the values in the device tree to avoid having to add a special case.
The lpid value is the only one required, but add both for completeness.
Fixes: 5402e239d0 ("powerpc/64s: Get LPID bit width from device tree")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220519125706.593532-1-joel@jms.id.au
