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For BZ/GF and SC/GF, we no longer have a .pnvm file, don't declare
those
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828111032.74f7fdba4ff6.Ia5e2123471df1fdc3688d8687a8e437388412206@changeid
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This variable is now only used in the same file, so there's
no need to expose it. Make it static.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828111032.83ec118cd1fb.I50c8e86fb786488f97e1ff2e115c4166c6b9bee1@changeid
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There's no need to check an ARRAY_SIZE() at runtime, it's
already determined at build time, so could be a BUILD_BUG_ON.
However it's not that useful here since the array is defined
using UEFI_MAX_DSM_FUNCS, check DSM_FUNC_NUM_FUNCS instead to
ensure the array cannot be accessed out-of-band, i.e. ensure
the range check there is always good enough.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250828111032.cc3c17327ea2.I99c7175be1f72f29b154454fc24978daafad476f@changeid
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address cells
Add missing address-cells 0 to the PCI interrupt node to silence W=1
warning:
uniphier-pxs3.dtsi:915.4-918.29: Warning (interrupt_map): /soc@0/pcie@66000000:interrupt-map:
Missing property '#address-cells' in node /soc@0/pcie@66000000/legacy-interrupt-controller, using 0 as fallback
Value '0' is correct because:
1. GIC interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
the fourth component "parent unit address", which size is defined by
'#address-cells' of the node pointed to by the interrupt-parent
component, is not used (=0)
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20250822133318.312232-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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address cells
Add missing address-cells 0 to the PCI interrupt node to silence W=1
warning:
uniphier-ld20.dtsi:941.4-944.29: Warning (interrupt_map): /soc@0/pcie@66000000:interrupt-map:
Missing property '#address-cells' in node /soc@0/pcie@66000000/legacy-interrupt-controller, using 0 as fallback
Value '0' is correct because:
1. GIC interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
the fourth component "parent unit address", which size is defined by
'#address-cells' of the node pointed to by the interrupt-parent
component, is not used (=0)
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20250822133318.312232-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing address-cells 0 to GIC interrupt node. Value '0' is correct
because GIC interrupt controller does not have children.
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20250830093918.24619-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add DPU_BUS and CMUREF mux/div, wire their registers and parents,
and update CLKS_NR_TOP. These use the new IDs appended to the
bindings to avoid ABI changes.
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Link: https://lore.kernel.org/r/20250830-fix-cmu-top-v5-5-7c62f608309e@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add missing clock definitions for DPU and CMUREF.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Link: https://lore.kernel.org/r/20250830-fix-cmu-top-v5-4-7c62f608309e@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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HSI1/2 PCIe and HSI0 USBDP debug outputs are fixed divide-by-8.
OTP also uses 1/8 from oscclk. Replace incorrect div clocks with
fixed-factor clocks to reflect hardware.
Fixes: bdd03ebf721f ("clk: samsung: Introduce Exynos990 clock controller driver")
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20250830-fix-cmu-top-v5-3-7c62f608309e@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Correct several mux/div widths (DSP_BUS, G2D_MSCL, HSI0 USBDP_DEBUG,
HSI1 UFS_EMBD, APM_BUS, CPUCL0_DBG_BUS, DPU) to match hardware.
Fixes: bdd03ebf721f ("clk: samsung: Introduce Exynos990 clock controller driver")
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20250830-fix-cmu-top-v5-2-7c62f608309e@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Parent select bits for shared PLLs are in PLL_CON0, not PLL_CON3.
Using the wrong register leads to incorrect parent selection and rates.
Fixes: bdd03ebf721f ("clk: samsung: Introduce Exynos990 clock controller driver")
Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20250830-fix-cmu-top-v5-1-7c62f608309e@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Determining the VMPL at which the kernel runs involves performing a RMPADJUST
operation on an arbitrary page of memory, and observing whether it succeeds.
The use of boot_ghcb_page in the core kernel in this case is completely
arbitrary, but results in the need to provide a PIC alias for it. So use
boot_svsm_ca_page instead, which already needs this alias for other reasons.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/20250828102202.1849035-28-ardb+git@google.com
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The early page state change API performs an SVSM call to PVALIDATE each page
when running under a SVSM, and this involves either a GHCB page based call or
a call based on the MSR protocol.
The GHCB page based variant involves VA to PA translation of the GHCB address,
and this is best avoided in the startup code, where virtual addresses are
ambiguous (1:1 or kernel virtual).
As this is the last remaining occurrence of svsm_perform_call_protocol() in
the startup code, switch to the MSR protocol exclusively in this particular
case, so that the GHCB based plumbing can be moved out of the startup code
entirely in a subsequent patch.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/20250828102202.1849035-27-ardb+git@google.com
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As the preceding code comment already indicates, remapping the SVSM
calling area occurs long before the GHCB page is configured, and so
calling svsm_perform_call_protocol() is guaranteed to result in a call
to svsm_perform_msr_protocol().
So just call the latter directly. This allows most of the GHCB based API
infrastructure to be moved out of the startup code in a subsequent
patch.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/20250828102202.1849035-26-ardb+git@google.com
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To avoid a memory leak via mm_alloc() + mmdrop() the futex cleanup code
has been moved to __mmdrop(). This resulted in a warnings if the futex
hash table has been allocated via vmalloc() the mmdrop() was invoked
from atomic context.
The free path must stay in __mmput() to ensure it is invoked from
preemptible context.
In order to avoid the memory leak, delay the allocation of
mm_struct::mm->futex_ref to futex_hash_allocate(). This works because
neither the per-CPU counter nor the private hash has been allocated and
therefore
- futex_private_hash() callers (such as exit_pi_state_list()) don't
acquire reference if there is no private hash yet. There is also no
reference put.
- Regular callers (futex_hash()) fallback to global hash. No reference
counting here.
The futex_ref member can be allocated in futex_hash_allocate() before
the private hash itself is allocated. This happens either while the
first thread is created or on request. In both cases the process has
just a single thread so there can be either futex operation in progress
or the request to create a private hash.
Move futex_hash_free() back to __mmput();
Move the allocation of mm_struct::futex_ref to futex_hash_allocate().
[ bp: Fold a follow-up fix to prevent a use-after-free:
https://lore.kernel.org/r/20250830213806.sEKuuGSm@linutronix.de ]
Fixes: e703b7e247503 ("futex: Move futex cleanup to __mmdrop()")
Closes: https://lore.kernel.org/all/20250821102721.6deae493@kernel.org/
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lkml.kernel.org/r/20250822141238.PfnkTjFb@linutronix.de
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The ISP instances in the NXP i.MX8MP need two power domains. While
single power domains are managed automatically by the device core,
support for multiple power domains requires manually attaching to the
power domains. Do so based on platform data.
Link: https://lore.kernel.org/r/20250616011115.19515-6-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The ISP instances in the NXP i.MX8MP need the input pixel clock to be
enabled in order to access the HDR stitching registers. The clock should
ideally be mandatory, but that would break backward compatibility with
old DT. Try to acquire it as an optional clock instead.
Link: https://lore.kernel.org/r/20250616011115.19515-5-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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ISP instances in different SoCs differ in the number of clocks they use,
but not in the clock names. Refactor clocks initialization to avoid
duplicating the clock names per platform, and lower the total number of
clocks from 8 to 4 as no platform uses more than 4 clocks. Use a static
assert to ensure at build time that the size of the arrays match.
Link: https://lore.kernel.org/r/20250616011115.19515-4-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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In the NXP i.MX8MP, the pclk clock required by the ISP is gated by the
MIPI CSI-2 power domain. Add it to the power-domains property, and
require specifying power-domain-names accordingly.
Link: https://lore.kernel.org/r/20250616011115.19515-3-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The ISP integrated in the NXP i.MX8MP requires the pclk clock to access
the HDR stitching registers. Make it mandatory in the DT binding.
Link: https://lore.kernel.org/r/20250616011115.19515-2-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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There's no need to power up the device when userspace opens it. Delay
the operation until streamon.
Link: https://lore.kernel.org/r/20250821135123.29462-2-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Tested-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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If streamon/streamoff calls are imbalanced, such as when exiting an
application with Ctrl+C when streaming, the m2m usage_count will never
reach zero and the ISI channel won't be freed. Besides from that, if the
input line width is more than 2K, it will trigger a WARN_ON():
[ 59.222120] ------------[ cut here ]------------
[ 59.226758] WARNING: drivers/media/platform/nxp/imx8-isi/imx8-isi-hw.c:631 at mxc_isi_channel_chain+0xa4/0x120, CPU#4: v4l2-ctl/654
[ 59.238569] Modules linked in: ap1302
[ 59.242231] CPU: 4 UID: 0 PID: 654 Comm: v4l2-ctl Not tainted 6.16.0-rc4-next-20250704-06511-gff0e002d480a-dirty #258 PREEMPT
[ 59.253597] Hardware name: NXP i.MX95 15X15 board (DT)
[ 59.258720] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 59.265669] pc : mxc_isi_channel_chain+0xa4/0x120
[ 59.270358] lr : mxc_isi_channel_chain+0x44/0x120
[ 59.275047] sp : ffff8000848c3b40
[ 59.278348] x29: ffff8000848c3b40 x28: ffff0000859b4c98 x27: ffff800081939f00
[ 59.285472] x26: 000000000000000a x25: ffff0000859b4cb8 x24: 0000000000000001
[ 59.292597] x23: ffff0000816f4760 x22: ffff0000816f4258 x21: ffff000084ceb780
[ 59.299720] x20: ffff000084342ff8 x19: ffff000084340000 x18: 0000000000000000
[ 59.306845] x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffdb369e1c
[ 59.313969] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[ 59.321093] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
[ 59.328217] x8 : ffff8000848c3d48 x7 : ffff800081930b30 x6 : ffff800081930b30
[ 59.335340] x5 : ffff0000859b6000 x4 : ffff80008193ae80 x3 : ffff800081022420
[ 59.342464] x2 : ffff0000852f6900 x1 : 0000000000000001 x0 : ffff000084341000
[ 59.349590] Call trace:
[ 59.352025] mxc_isi_channel_chain+0xa4/0x120 (P)
[ 59.356722] mxc_isi_m2m_streamon+0x160/0x20c
[ 59.361072] v4l_streamon+0x24/0x30
[ 59.364556] __video_do_ioctl+0x40c/0x4a0
[ 59.368560] video_usercopy+0x2bc/0x690
[ 59.372382] video_ioctl2+0x18/0x24
[ 59.375857] v4l2_ioctl+0x40/0x60
[ 59.379168] __arm64_sys_ioctl+0xac/0x104
[ 59.383172] invoke_syscall+0x48/0x104
[ 59.386916] el0_svc_common.constprop.0+0xc0/0xe0
[ 59.391613] do_el0_svc+0x1c/0x28
[ 59.394915] el0_svc+0x34/0xf4
[ 59.397966] el0t_64_sync_handler+0xa0/0xe4
[ 59.402143] el0t_64_sync+0x198/0x19c
[ 59.405801] ---[ end trace 0000000000000000 ]---
Address this issue by moving the streaming preparation and cleanup to
the vb2 .prepare_streaming() and .unprepare_streaming() operations. This
also simplifies the driver by allowing direct usage of the
v4l2_m2m_ioctl_streamon() and v4l2_m2m_ioctl_streamoff() helpers.
Fixes: cf21f328fcaf ("media: nxp: Add i.MX8 ISI driver")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250821135123.29462-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add suspend/resume support for ISI when work at memory to memory mode.
Link: https://lore.kernel.org/r/20250815-isi_m2m-v2-1-32e3720880cc@nxp.com
Signed-off-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The bypass argument to the mxc_isi_channel_chain() function is unused.
Drop it.
Link: https://lore.kernel.org/r/20250813225501.20762-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The mxc_isi_video.is_streaming field is used to track the streaming
status of the video device. The same information is also tracked by the
videobuf2 queue. Drop the is_streaming field, and check the queue
streaming status instead.
Link: https://lore.kernel.org/r/20250813212451.22140-3-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Richard Leitner <richard.leitner@linux.dev> # i.MX8MP
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The current implementation unconditionally calls
mxc_isi_video_cleanup_streaming() in mxc_isi_video_release(). This can
lead to situations where any release call (like from a simple
"v4l2-ctl -l") may release a currently streaming queue when called on
such a device.
This is reproducible on an i.MX8MP board by streaming from an ISI
capture device using gstreamer:
gst-launch-1.0 -v v4l2src device=/dev/videoX ! \
video/x-raw,format=GRAY8,width=1280,height=800,framerate=1/120 ! \
fakesink
While this stream is running, querying the caps of the same device
provokes the error state:
v4l2-ctl -l -d /dev/videoX
This results in the following trace:
[ 155.452152] ------------[ cut here ]------------
[ 155.452163] WARNING: CPU: 0 PID: 1708 at drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c:713 mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi]
[ 157.004248] Modules linked in: cfg80211 rpmsg_ctrl rpmsg_char rpmsg_tty virtio_rpmsg_bus rpmsg_ns rpmsg_core rfkill nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables mcp251x6
[ 157.053499] CPU: 0 UID: 0 PID: 1708 Comm: python3 Not tainted 6.15.4-00114-g1f61ca5cad76 #1 PREEMPT
[ 157.064369] Hardware name: imx8mp_board_01 (DT)
[ 157.068205] pstate: 400000c5 (nZcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 157.075169] pc : mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi]
[ 157.081195] lr : mxc_isi_pipe_irq_handler+0x38/0x1b0 [imx8_isi]
[ 157.087126] sp : ffff800080003ee0
[ 157.090438] x29: ffff800080003ee0 x28: ffff0000c3688000 x27: 0000000000000000
[ 157.097580] x26: 0000000000000000 x25: ffff0000c1e7ac00 x24: ffff800081b5ad50
[ 157.104723] x23: 00000000000000d1 x22: 0000000000000000 x21: ffff0000c25e4000
[ 157.111866] x20: 0000000060000200 x19: ffff80007a0608d0 x18: 0000000000000000
[ 157.119008] x17: ffff80006a4e3000 x16: ffff800080000000 x15: 0000000000000000
[ 157.126146] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
[ 157.133287] x11: 0000000000000040 x10: ffff0000c01445f0 x9 : ffff80007a053a38
[ 157.140425] x8 : ffff0000c04004b8 x7 : 0000000000000000 x6 : 0000000000000000
[ 157.147567] x5 : ffff0000c0400490 x4 : ffff80006a4e3000 x3 : ffff0000c25e4000
[ 157.154706] x2 : 0000000000000000 x1 : ffff8000825c0014 x0 : 0000000060000200
[ 157.161850] Call trace:
[ 157.164296] mxc_isi_pipe_irq_handler+0x19c/0x1b0 [imx8_isi] (P)
[ 157.170319] __handle_irq_event_percpu+0x58/0x218
[ 157.175029] handle_irq_event+0x54/0xb8
[ 157.178867] handle_fasteoi_irq+0xac/0x248
[ 157.182968] handle_irq_desc+0x48/0x68
[ 157.186723] generic_handle_domain_irq+0x24/0x38
[ 157.191346] gic_handle_irq+0x54/0x120
[ 157.195098] call_on_irq_stack+0x24/0x30
[ 157.199027] do_interrupt_handler+0x88/0x98
[ 157.203212] el0_interrupt+0x44/0xc0
[ 157.206792] __el0_irq_handler_common+0x18/0x28
[ 157.211328] el0t_64_irq_handler+0x10/0x20
[ 157.215429] el0t_64_irq+0x198/0x1a0
[ 157.219009] ---[ end trace 0000000000000000 ]---
Address this issue by moving the streaming preparation and cleanup to
the vb2 .prepare_streaming() and .unprepare_streaming() operations. This
also simplifies the driver by allowing direct usage of the
vb2_ioctl_streamon() and vb2_ioctl_streamoff() helpers, and removal of
the manual cleanup from mxc_isi_video_release().
Link: https://lore.kernel.org/r/20250813212451.22140-2-laurent.pinchart@ideasonboard.com
Signed-off-by: Richard Leitner <richard.leitner@linux.dev>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Richard Leitner <richard.leitner@linux.dev> # i.MX8MP
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Some CSIS instances feature more than one output channel. Update
register macros accordingly, parse the number of channels from the
device tree, and update register dumps and event counters to log
per-channel data.
Support for routing virtual channels and data types to output channels
through the subdev internal routing API will come later.
Link: https://lore.kernel.org/r/20250822002734.23516-13-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The CSI-2 receiver can be instantiated with up to four output channels.
This is an integration-specific property, specify the number of
instantiated channels through a new fsl,num-channels property. The
property is optional, and defaults to 1 as only one channel is currently
supported by drivers.
Using the compatible string to infer the number of channels has been
considered, but multiple instances of the same CSIS in the same SoC
could conceptually be synthesized with a different number of channels.
An explicit property is therefore more appropriate.
The only known SoC to have more than one channel is the i.MX8MP. As the
binding examples do not cover that SoC, don't update them.
Link: https://lore.kernel.org/r/20250822002734.23516-12-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Usage of the clock-frequency property, which is already optional, is
discouraged in favour of using assigned-clock-rates (and
assigned-clock-parents where needed). Mark the property as deprecated,
and update the examples accordingly.
Link: https://lore.kernel.org/r/20250822002734.23516-11-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The imx-mipi-csis driver sets the rate of the wrap clock to the value
specified in the device tree's "clock-frequency" property, and defaults
to 166 MHz otherwise. This is a historical mistake, as clock rate
selection should have been left to the assigned-clock-rates property.
Honouring the clock-frequency property can't be removed without breaking
backwards compatibility, and the corresponding code isn't very
intrusive. The 166 MHz default, on the other hand, prevents
configuration of the clock rate through assigned-clock-rates, as the
driver immediately overwrites the rate. This behaviour is confusing and
has cost debugging time.
There is little value in a 166 MHz default. All mainline device tree
sources that enable the CSIS specify a clock-frequency explicitly, and
the default wrap clock configuration on supported platforms is at least
as high as 166 MHz. Drop the default, and only set the clock rate
manually when the clock-frequency property is specified.
Link: https://lore.kernel.org/r/20250822002734.23516-10-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The CSIS has per-line start of transmission error interrupts. Log them
all, instead of only the first data lane.
Link: https://lore.kernel.org/r/20250822002734.23516-9-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Commit 95a1379004cb ("media: staging: media: imx: imx7-mipi-csis: Dump
MIPI_CSIS_FRAME_COUNTER_CH0 register") forgot to increase the maximum
register name length, resulting in misalignment of names printed in the
kernel log. Fix it.
Link: https://lore.kernel.org/r/20250822002734.23516-8-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Multiple register field mask macros use GENMASK, while other define the
mask value manually. Standardize on GENMASK everywhere, as well as on
the _MASK suffix to name the macros. This improves consistency and helps
with readability.
No functional change is intended.
Link: https://lore.kernel.org/r/20250822002734.23516-7-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The CSIS driver uses register macro names that do not match the
reference manual of the i.MX7[DS] and i.MX8M[MNP] SoCs in which the CSIS
is integrated. Rename them to match the documentation, making the code
easier to read alongside the reference manuals.
One of the misnamed register fields is MIPI_CSIS_INT_SRC_ERR_UNKNOWN,
which led to the corresponding event being logged as "Unknown Error".
The correct register field name is MIPI_CSIS_INT_SRC_ERR_ID, documented
as "Unknown ID error". Update the event description accordingly.
While at it, also replace a few *_OFFSET macros with parametric macros
for consistency, and add the missing MIPI_CSIS_ISP_RESOL_VRESOL and
MIPI_CSIS_ISP_RESOL_HRESOL register field macros.
No functional change intended.
Link: https://lore.kernel.org/r/20250822002734.23516-6-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Rename sd_state to state to standardize the naming of the subdev state
variables and help shortening lines.
No functional change is intended.
Link: https://lore.kernel.org/r/20250822002734.23516-5-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The const keyword for pointer variables is placed before the type
everywhere except in one location. Change it to improve consistency.
No functional change is intended.
Link: https://lore.kernel.org/r/20250822002734.23516-4-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The mipi_csis_calculate_params() function needs to access the pad of the
connected source. The pad is already available in csis->source.pad, but
the function takes a convoluted path by getting the pad index and
indexing the source subdev's pads array. Simplify it.
No functional change is intended.
Link: https://lore.kernel.org/r/20250822002734.23516-3-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The v4l2_get_link_freq() macro doesn't modify the pad argument. Make it
possible to call it with a const media_pad pointer.
Link: https://lore.kernel.org/r/20250822002734.23516-2-laurent.pinchart@ideasonboard.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The <ufs/ufs.h> header file defines constants and data structures
related to the UFS standard. Move the enumeration types related to
tracing into a new header file because these are not defined in the UFS
standard. An intended side effect of this patch is that the tracing
enumeration types are no longer visible to UFS host drivers.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20250829153841.2201700-1-bvanassche@acm.org
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Use secs_to_jiffies() instead of msecs_to_jiffies() and avoid scaling
'ratov_j' to milliseconds.
No functional changes intended.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20250828161153.3676-2-thorsten.blum@linux.dev
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix spelling errors in some comments.
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Link: https://lore.kernel.org/r/20250827121611.497547-1-zhao.xichao@vivo.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Reinstate the rotational media flag for the CD-ROM driver. The flag has
been cleared since commit bd4a633b6f7c ("block: move the nonrot flag to
queue_limits") and this breaks some applications.
Move queue limit configuration from get_sectorsize() to
sr_revalidate_disk() and set the rotational flag.
Cc: Christoph Hellwig <hch@lst.de>
Fixes: bd4a633b6f7c ("block: move the nonrot flag to queue_limits")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250827113550.2614535-1-ming.lei@redhat.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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-Wflex-array-member-not-at-end has been introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with a flexible-array member in the
middle of multiple other structs, we use the '__struct_group()' helper
to create a new tagged 'struct fc_df_desc_fpin_reg_hdr'. This structure
groups together all the members of the flexible 'struct
fc_df_desc_fpin_reg' except the flexible array.
As a result, the array is effectively separated from the rest of the
members without modifying the memory layout of the flexible structure.
We then change the type of the middle struct members currently causing
trouble from 'struct fc_df_desc_fpin_reg' to 'struct
fc_df_desc_fpin_reg_hdr'.
We also want to ensure that in case new members need to be added to the
flexible structure, they are always included within the newly created
tagged struct. For this, we use '_Static_assert()'. This ensures that
the memory layout for both the flexible structure and the new tagged
struct is the same after any changes.
This approach avoids having to implement 'struct fc_df_desc_fpin_reg_hdr'
as a completely separate structure, thus preventing having to maintain
two independent but basically identical structures, closing the door
to potential bugs in the future.
The above is also done for flexible structures 'struct fc_els_rdf' and
'struct fc_els_rdf_resp'
So, with these changes, fix the following warnings:
drivers/scsi/lpfc/lpfc_hw4.h:4936:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/scsi/lpfc/lpfc_hw4.h:4942:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/scsi/lpfc/lpfc_hw4.h:4947:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/aK6hbQLyQlvlySf8@kspp
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Use int instead of u32 for 'ret' variable to store negative error codes
returned by PM8001_CHIP_DISP->set_nvmd_req().
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20250826093242.230344-1-rongqianfeng@vivo.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Enable gmac2 on the Agilex5 SOCFGPA Development Kit. The MAC is connected
to a RGMII PHY on a daughter card. There are no RGMII clock delays
implemented the on PCB.
Signed-off-by: Matthew Gerlach <matthew.gerlach@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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Add the base device tree nodes for gmac0, gmac1, and gmac2 to the DTSI
for the Agilex5 SOCFPGA. Agilex5 has three Ethernet controllers based on
Synopsys DWC XGMAC IP version 2.10.
Signed-off-by: Mun Yew Tham <mun.yew.tham@altera.com>
Signed-off-by: Matthew Gerlach <matthew.gerlach@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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The sd_revalidate_disk() function currently returns 0 for both success
and memory allocation failure. Since none of its callers use the return
value, this return code is both unnecessary and potentially misleading.
Change the return type of sd_revalidate_disk() from int to void
and remove all return value handling. This makes the function
semantics clearer and avoids confusion about unused return codes.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Abinash Singh <abinashsinghlalotra@gmail.com>
Link: https://lore.kernel.org/r/20250825183940.13211-4-abinashsinghlalotra@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The SCSI disk driver prints a warning when kmalloc() fails in
sd_revalidate_disk(). This is redundant because the page allocator
already reports failures unless __GFP_NOWARN is used. Keeping the extra
message only adds noise to the kernel log.
Remove the unnecessary sd_printk() call. Control flow is unchanged.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Abinash Singh <abinashsinghlalotra@gmail.com>
Link: https://lore.kernel.org/r/20250825183940.13211-3-abinashsinghlalotra@gmail.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A build warning was triggered due to excessive stack usage in
sd_revalidate_disk():
drivers/scsi/sd.c: In function ‘sd_revalidate_disk.isra’:
drivers/scsi/sd.c:3824:1: warning: the frame size of 1160 bytes is larger than 1024 bytes [-Wframe-larger-than=]
This is caused by a large local struct queue_limits (~400B) allocated on
the stack. Replacing it with a heap allocation using kmalloc()
significantly reduces frame usage. Kernel stack is limited (~8 KB), and
allocating large structs on the stack is discouraged. As the function
already performs heap allocations (e.g. for buffer), this change fits
well.
Fixes: 804e498e0496 ("sd: convert to the atomic queue limits API")
Cc: stable@vger.kernel.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Abinash Singh <abinashsinghlalotra@gmail.com>
Link: https://lore.kernel.org/r/20250825183940.13211-2-abinashsinghlalotra@gmail.com
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix a use-after-free window by correcting the buffer release sequence in
the deferred receive path. The code freed the RQ buffer first and only
then cleared the context pointer under the lock. Concurrent paths (e.g.,
ABTS and the repost path) also inspect and release the same pointer under
the lock, so the old order could lead to double-free/UAF.
Note that the repost path already uses the correct pattern: detach the
pointer under the lock, then free it after dropping the lock. The
deferred path should do the same.
Fixes: 472e146d1cf3 ("scsi: lpfc: Correct upcalling nvmet_fc transport during io done downcall")
Cc: stable@vger.kernel.org
Signed-off-by: John Evans <evans1210144@gmail.com>
Link: https://lore.kernel.org/r/20250828044008.743-1-evans1210144@gmail.com
Reviewed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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