Remove dev_err() messages after platform_get_irq*() failures.
platform_get_irq() already prints an error.
Generated by: scripts/coccinelle/api/platform_get_irq.cocci
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
In free_charger_irq(), there is no free for 'WM8350_IRQ_CHG_FAST_RDY'.
Therefore, it should be better to add it in order to avoid the memory leak.
Fixes: 14431aa0c5 ("power_supply: Add support for WM8350 PMU")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
As the potential failure of the wm8350_register_irq(),
it should be better to check it and return error if fails.
Also, use 'free_' in order to avoid same code.
Fixes: 14431aa0c5 ("power_supply: Add support for WM8350 PMU")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
If we detect a Samsung SDI battery, we return a static
struct power_supply_battery_info and avoid looking further.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Any app controlled perfcntr collection (GL_AMD_performance_monitor, etc)
does not require counters to maintain state across context switches. So
clear them if systemwide profiling is not active.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220304005317.776110-5-robdclark@gmail.com
Add a SYSPROF param for system profiling tools like Mesa's pps-producer
(perfetto) to control behavior related to system-wide performance
counter collection. In particular, for profiling, one wants to ensure
that GPU context switches do not effect perfcounter state, and might
want to suppress suspend (which would cause counters to lose state).
v2: Swap the order in msm_file_private_set_sysprof() [sboyd] and
initialize the sysprof_active refcount to one (because the under/
overflow checking in refcount_t doesn't expect a 0->1 transition)
meaning that values greater than 1 means sysprof is active.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220304005317.776110-4-robdclark@gmail.com
* Fixes for a handful of KASAN-related crashes.
* A fix to avoid a crash during boot for SPARSEMEM && !SPARSEMEM_VMEMMAP
configurations.
* A fix to stop reporting some incorrect errors under DEBUG_VIRTUAL.
* A fix for the K210's device tree to properly populate the interrupt
map, so hart1 will get interrupts again.
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Merge tag 'riscv-for-linus-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- Fixes for a handful of KASAN-related crashes.
- A fix to avoid a crash during boot for SPARSEMEM &&
!SPARSEMEM_VMEMMAP configurations.
- A fix to stop reporting some incorrect errors under DEBUG_VIRTUAL.
- A fix for the K210's device tree to properly populate the interrupt
map, so hart1 will get interrupts again.
* tag 'riscv-for-linus-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: dts: k210: fix broken IRQs on hart1
riscv: Fix kasan pud population
riscv: Move high_memory initialization to setup_bootmem
riscv: Fix config KASAN && DEBUG_VIRTUAL
riscv: Fix DEBUG_VIRTUAL false warnings
riscv: Fix config KASAN && SPARSEMEM && !SPARSE_VMEMMAP
riscv: Fix is_linear_mapping with recent move of KASAN region
It was always expected to have a use for this some day, so we left a
placeholder. Now we do. (And I expect another use in the not too
distant future when we start allowing userspace to allocate GPU iova.)
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220304005317.776110-3-robdclark@gmail.com
Update headers from mesa commit:
commit 7e63fa2bb13cf14b765ad06d046789ee1879b5ef
Author: Rob Clark <robclark@freedesktop.org>
AuthorDate: Wed Mar 2 17:11:10 2022 -0800
freedreno/registers: Add a couple regs we need for kernel
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15221>
Signed-off-by: Rob Clark <robdclark@chromium.org>
[for display bits:]
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/20220304005317.776110-2-robdclark@gmail.com
Use the helpers instead of open coding them.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-11-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Use memcpy_from_bvec instead of open coding the logic.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Use the proper helper instead of open coding the copy.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20220303111905.321089-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220303111905.321089-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Using local kmaps slightly reduces the chances to stray writes, and
the bvec interface cleans up the code a little bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Link: https://lore.kernel.org/r/20220303111905.321089-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Hopefully the last PR for 5.17, including just a few small changes:
an additional fix for ASoC ops boundary check and other minor
device-specific fixes.
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Merge tag 'sound-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Hopefully the last PR for 5.17, including just a few small changes:
an additional fix for ASoC ops boundary check and other minor
device-specific fixes"
* tag 'sound-5.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: intel_hdmi: Fix reference to PCM buffer address
ASoC: cs4265: Fix the duplicated control name
ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min
i915:
- Fix GuC SLPC unset command
- Fix misidentification of some Apple MacBook Pro laptops as Jasper Lake.
amdgpu:
- Suspend regression fix
exynos:
- irq handling fixes.
- Fix two regressions to TE-gpio handling.
arm/hdlcd:
- Select DRM_GEM_CMEA_HELPER for HDLCD
bridge:
- ti-sn65dsi86: Properly undo autosuspend
vrr:
- Fix potential NULL-pointer deref
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Merge tag 'drm-fixes-2022-03-04' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Things are quieting down as expected, just a small set of fixes, i915,
exynos, amdgpu, vrr, bridge and hdlcd. Nothing scary at all.
i915:
- Fix GuC SLPC unset command
- Fix misidentification of some Apple MacBook Pro laptops as Jasper Lake
amdgpu:
- Suspend regression fix
exynos:
- irq handling fixes
- Fix two regressions to TE-gpio handling
arm/hdlcd:
- Select DRM_GEM_CMEA_HELPER for HDLCD
bridge:
- ti-sn65dsi86: Properly undo autosuspend
vrr:
- Fix potential NULL-pointer deref"
* tag 'drm-fixes-2022-03-04' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: fix suspend/resume hang regression
drm/vrr: Set VRR capable prop only if it is attached to connector
drm/arm: arm hdlcd select DRM_GEM_CMA_HELPER
drm/bridge: ti-sn65dsi86: Properly undo autosuspend
drm/i915: s/JSP2/ICP2/ PCH
drm/i915/guc/slpc: Correct the param count for unset param
drm/exynos: Search for TE-gpio in DSI panel's node
drm/exynos: Don't fail if no TE-gpio is defined for DSI driver
drm/exynos: gsc: Use platform_get_irq() to get the interrupt
drm/exynos/fimc: Use platform_get_irq() to get the interrupt
drm/exynos/exynos_drm_fimd: Use platform_get_irq_byname() to get the interrupt
drm/exynos: mixer: Use platform_get_irq() to get the interrupt
drm/exynos/exynos7_drm_decon: Use platform_get_irq_byname() to get the interrupt
These two fixes should fix the issues seen on the OrangePi,
first we needed the correct offset when calling
pinctrl_gpio_direction(), and fixing that made a lockdep
issue explode in our face. Both now fixed.
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Merge tag 'pinctrl-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"These two fixes should fix the issues seen on the OrangePi, first we
needed the correct offset when calling pinctrl_gpio_direction(), and
fixing that made a lockdep issue explode in our face. Both now fixed"
* tag 'pinctrl-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: Use unique lockdep classes for IRQs
pinctrl-sunxi: sunxi_pinctrl_gpio_direction_in/output: use correct offset
Add a Sapphire Rapids Xeon C6 optimization, similar to what we have for Sky Lake
Xeon: if package C6 is disabled, adjust C6 exit latency and target residency to
match core C6 values, instead of using the default package C6 values.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On Sapphire Rapids Xeon (SPR) the C1 and C1E states are basically mutually
exclusive - only one of them can be enabled. By default, 'intel_idle' driver
enables C1 and disables C1E. However, some users prefer to use C1E instead of
C1, because it saves more energy.
This patch adds a new module parameter ('preferred_cstates') for enabling C1E
and disabling C1. Here is the idea behind it.
1. This option has effect only for "mutually exclusive" C-states like C1 and
C1E on SPR.
2. It does not have any effect on independent C-states, which do not require
other C-states to be disabled (most states on most platforms as of today).
3. For mutually exclusive C-states, the 'intel_idle' driver always has a
reasonable default, such as enabling C1 on SPR by default. On other
platforms, the default may be different.
4. Users can override the default using the 'preferred_cstates' parameter.
5. The parameter accepts the preferred C-states bit-mask, similarly to the
existing 'states_off' parameter.
6. This parameter is not limited to C1/C1E, and leaves room for supporting
other mutually exclusive C-states, if they come in the future.
Today 'intel_idle' can only be compiled-in, which means that on SPR, in order
to disable C1 and enable C1E, users should boot with the following kernel
argument: intel_idle.preferred_cstates=4
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add Sapphire Rapids Xeon support.
Up until very recently, the C1 and C1E C-states were independent, but this
has changed in some new chips, including Sapphire Rapids Xeon (SPR). In these
chips the C1 and C1E states cannot be enabled at the same time. The "C1E
promotion" bit in 'MSR_IA32_POWER_CTL' also has its semantics changed a bit.
Here are the C1, C1E, and "C1E promotion" bit rules on Xeons before SPR.
1. If C1E promotion bit is disabled.
a. C1 requests end up with C1 C-state.
b. C1E requests end up with C1E C-state.
2. If C1E promotion bit is enabled.
a. C1 requests end up with C1E C-state.
b. C1E requests end up with C1E C-state.
Here are the C1, C1E, and "C1E promotion" bit rules on Sapphire Rapids Xeon.
1. If C1E promotion bit is disabled.
a. C1 requests end up with C1 C-state.
b. C1E requests end up with C1 C-state.
2. If C1E promotion bit is enabled.
a. C1 requests end up with C1E C-state.
b. C1E requests end up with C1E C-state.
Before SPR Xeon, the 'intel_idle' driver was disabling C1E promotion and was
exposing C1 and C1E as independent C-states. But on SPR, C1 and C1E cannot be
enabled at the same time.
This patch adds both C1 and C1E states. However, C1E is marked as with the
"CPUIDLE_FLAG_UNUSABLE" flag, which means that in won't be registered by
default. The C1E promotion bit will be cleared, which means that by default
only C1 and C6 will be registered on SPR.
The next patch will add an option for enabling C1E and disabling C1 on SPR.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
__setup() handlers should generally return 1 to indicate that the
boot options have been handled.
Using invalid option values causes the entire kernel boot option
string to be reported as Unknown and added to init's environment
strings, polluting it.
Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc6
kprobe_event=p,syscall_any,$arg1 trace_options=quiet
trace_clock=jiffies", will be passed to user space.
Run /sbin/init as init process
with arguments:
/sbin/init
with environment:
HOME=/
TERM=linux
BOOT_IMAGE=/boot/bzImage-517rc6
kprobe_event=p,syscall_any,$arg1
trace_options=quiet
trace_clock=jiffies
Return 1 from the __setup() handlers so that init's environment is not
polluted with kernel boot options.
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Link: https://lkml.kernel.org/r/20220303031744.32356-1-rdunlap@infradead.org
Cc: stable@vger.kernel.org
Fixes: 7bcfaf54f5 ("tracing: Add trace_options kernel command line parameter")
Fixes: e1e232ca6b ("tracing: Add trace_clock=<clock> kernel parameter")
Fixes: 970988e19e ("tracing/kprobe: Add kprobe_event= boot parameter")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This way we don't need to check for NULL any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We now have standard macros for that.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Instead of providing the ib index provide the job and ib pointers directly to
the patch and parse functions for UVD and VCE.
Also move the set/get functions for IB values to the IB declerations.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
No function change, just move a bunch of definitions from amdgpu.h into
separate header files.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
after the reset domain introduced, the sched.ready will be init after
hw_init, which will overwrite the setup in vcn hw_init, and lead to
vcn ib test fail.
[How]
set disabled vcn to no_scheduler
Fixes: 5fd8518d18 ("drm/amdgpu: Move scheduler init to after XGMI is ready")
Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Since we removed the context lock we need to make sure that not two threads
are trying to install an entity at the same time.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: 461fa7b0ac ("drm/amdgpu: remove ctx->lock")
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This patch implements get_atc_vmid_pasid_mapping_info for gfx10.3
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
vcn fwlog is for debugging purpose only,
by default, it is disabled.
Signed-off-by: Ruijing Dong <ruijing.dong@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add fw log in fw shared data structure.
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Ruijing Dong <ruijing.dong@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add DFC CAP support for aldebaran
Initialize cap microcode in psp_init_sriov_microcode,
the ta microcode will be initialized in psp_vxx_init_microcode
Signed-off-by: David Yu <David.Yu@amd.com>
Reviewed-by: Shaoyun.liu <Shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Aldebaran has 48-bit physical address support
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Use IP version and refactor reset logic to apply to a list of devices.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: 3.2.175
This version brings along following fixes:
- Remove invalid RDPCS Programming in DAL
- Make functional resource functions non-static
- Reset VIC if HDMI_VIC is present
- Add frame alternate 3D & restrict HW packed on dongles
- Reg to turn on/off PSR Power seq in FSM
- Modify plane removal sequence to avoid hangs
- Pass HostVM enable flag into DCN3.1 DML
- DC Validation failures
- Program OPP before ODM
- Refactor fixed VS w/a for PHY tests
- Pass deep sleep disabled allow info to dmub fw
- Refine the EDID override
- [FW Promotion] Release 0.0.106.0
- Add verify_link_cap back for hdmi
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[why]
hdmi specific: add verify link cap after retrive link cap.
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
We already get the SBIOS EDID via ACPI on KMD,
but after that, we just use the monitor EDID to set it HDR caps
[How]
Make the SBIOS EDID override to read_edid()
That can change the read EDID caps from the right EDID
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: jinzh <jinzh@github.amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
The deep sleep mode need to be disabled in some PSR scenario.
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Robin Chen <robin.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why/How]
Refactor original w/a to unify naming and
simplify logic. This also re-enables the code
that was previously skipped due to the
disabling of the previous workaround logic.
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: George Shen <George.Shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
syzkaller was recently triggering an oversized kvmalloc() warning via
xdp_umem_create().
The triggered warning was added back in 7661809d49 ("mm: don't allow
oversized kvmalloc() calls"). The rationale for the warning for huge
kvmalloc sizes was as a reaction to a security bug where the size was
more than UINT_MAX but not everything was prepared to handle unsigned
long sizes.
Anyway, the AF_XDP related call trace from this syzkaller report was:
kvmalloc include/linux/mm.h:806 [inline]
kvmalloc_array include/linux/mm.h:824 [inline]
kvcalloc include/linux/mm.h:829 [inline]
xdp_umem_pin_pages net/xdp/xdp_umem.c:102 [inline]
xdp_umem_reg net/xdp/xdp_umem.c:219 [inline]
xdp_umem_create+0x6a5/0xf00 net/xdp/xdp_umem.c:252
xsk_setsockopt+0x604/0x790 net/xdp/xsk.c:1068
__sys_setsockopt+0x1fd/0x4e0 net/socket.c:2176
__do_sys_setsockopt net/socket.c:2187 [inline]
__se_sys_setsockopt net/socket.c:2184 [inline]
__x64_sys_setsockopt+0xb5/0x150 net/socket.c:2184
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Björn mentioned that requests for >2GB allocation can still be valid:
The structure that is being allocated is the page-pinning accounting.
AF_XDP has an internal limit of U32_MAX pages, which is *a lot*, but
still fewer than what memcg allows (PAGE_COUNTER_MAX is a LONG_MAX/
PAGE_SIZE on 64 bit systems). [...]
I could just change from U32_MAX to INT_MAX, but as I stated earlier
that has a hacky feeling to it. [...] From my perspective, the code
isn't broken, with the memcg limits in consideration. [...]
Linus says:
[...] Pretty much every time this has come up, the kernel warning has
shown that yes, the code was broken and there really wasn't a reason
for doing allocations that big.
Of course, some people would be perfectly fine with the allocation
failing, they just don't want the warning. I didn't want __GFP_NOWARN
to shut it up originally because I wanted people to see all those
cases, but these days I think we can just say "yeah, people can shut
it up explicitly by saying 'go ahead and fail this allocation, don't
warn about it'".
So enough time has passed that by now I'd certainly be ok with [it].
Thus allow call-sites to silence such userspace triggered splats if the
allocation requests have __GFP_NOWARN. For xdp_umem_pin_pages()'s call
to kvcalloc() this is already the case, so nothing else needed there.
Fixes: 7661809d49 ("mm: don't allow oversized kvmalloc() calls")
Reported-by: syzbot+11421fbbff99b989670e@syzkaller.appspotmail.com
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: syzbot+11421fbbff99b989670e@syzkaller.appspotmail.com
Cc: Björn Töpel <bjorn@kernel.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Link: https://lore.kernel.org/bpf/CAJ+HfNhyfsT5cS_U9EC213ducHs9k9zNxX9+abqC0kTrPbQ0gg@mail.gmail.com
Link: https://lore.kernel.org/bpf/20211201202905.b9892171e3f5b9a60f9da251@linux-foundation.org
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Ackd-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[WHY]
HW expects OPP to be configured before ODM is enabled.
Failure to do so can cause errors.
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[WHY]
Calculations differ with HostVM enabled/disabled, causing underflow in
configs with high refresh displays + scaling due to lower available BW
[HOW]
Check riommu_active in order to pass correct HostVM enablement to DML
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
