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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
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tree60a31895b2446cd7fa27514e8c2843534a0de0da /Documentation/ABI/testing/debugfs-hisi-sec
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Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
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+What: /sys/kernel/debug/hisi_sec2/<bdf>/clear_enable
+Date: Oct 2019
+Contact: linux-crypto@vger.kernel.org
+Description: Enabling/disabling of clear action after reading
+ the SEC debug registers.
+ 0: disable, 1: enable.
+ Only available for PF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/current_qm
+Date: Oct 2019
+Contact: linux-crypto@vger.kernel.org
+Description: One SEC controller has one PF and multiple VFs, each function
+ has a QM. This file can be used to select the QM which below
+ qm refers to.
+ Only available for PF.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/alg_qos
+Date: Jun 2021
+Contact: linux-crypto@vger.kernel.org
+Description: The <bdf> is related the function for PF and VF.
+ SEC driver supports to configure each function's QoS, the driver
+ supports to write <bdf> value to alg_qos in the host. Such as
+ "echo <bdf> value > alg_qos". The qos value is 1~1000, means
+ 1/1000~1000/1000 of total QoS. The driver reading alg_qos to
+ get related QoS in the host and VM, Such as "cat alg_qos".
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/dev_usage
+Date: Mar 2026
+Contact: linux-crypto@vger.kernel.org
+Description: Query the real-time bandwidth usage of device.
+ Returns the bandwidth usage of each channel on the device.
+ The returned number is in percentage.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_regs
+Date: Oct 2019
+Contact: linux-crypto@vger.kernel.org
+Description: Dump of QM related debug registers.
+ Available for PF and VF in host. VF in guest currently only
+ has one debug register.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/current_q
+Date: Oct 2019
+Contact: linux-crypto@vger.kernel.org
+Description: One QM of SEC may contain multiple queues. Select specific
+ queue to show its debug registers in above 'regs'.
+ Only available for PF.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/clear_enable
+Date: Oct 2019
+Contact: linux-crypto@vger.kernel.org
+Description: Enabling/disabling of clear action after reading
+ the SEC's QM debug registers.
+ 0: disable, 1: enable.
+ Only available for PF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/err_irq
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the number of invalid interrupts for
+ QM task completion.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/aeq_irq
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the number of QM async event queue interrupts.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/abnormal_irq
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the number of interrupts for QM abnormal event.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/create_qp_err
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the number of queue allocation errors.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/mb_err
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the number of failed QM mailbox commands.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/status
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the status of the QM.
+ Two states: work, stop.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/diff_regs
+Date: Mar 2022
+Contact: linux-crypto@vger.kernel.org
+Description: QM debug registers(regs) read hardware register value. This
+ node is used to show the change of the qm register values. This
+ node can be help users to check the change of register values.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_state
+Date: Jan 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the state of the device.
+ 0: busy, 1: idle.
+ Only available for PF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_timeout
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Set the wait time when stop queue fails. Available for both PF
+ and VF, and take no other effect on SEC.
+ 0: not wait(default), others value: wait dev_timeout * 20 microsecond.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/dev_state
+Date: Feb 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the stop queue status of the QM. The default value is 0,
+ if dev_timeout is set, when stop queue fails, the dev_state
+ will return non-zero value. Available for both PF and VF,
+ and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/diff_regs
+Date: Mar 2022
+Contact: linux-crypto@vger.kernel.org
+Description: SEC debug registers(regs) read hardware register value. This
+ node is used to show the change of the register values. This
+ node can be help users to check the change of register values.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of sent requests.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/recv_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of received requests.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_busy_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of requests sent with returning busy.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/err_bd_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of BD type error requests
+ to be received.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/invalid_req_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of invalid requests being received.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/done_flag_cnt
+Date: Apr 2020
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the total number of completed but marked error requests
+ to be received.
+ Available for both PF and VF, and take no other effect on SEC.
+
+What: /sys/kernel/debug/hisi_sec2/<bdf>/cap_regs
+Date: Oct 2024
+Contact: linux-crypto@vger.kernel.org
+Description: Dump the values of the qm and sec capability bit registers and
+ support the query of device specifications to facilitate fault locating.
+ Available for both PF and VF, and take no other effect on SEC.