** Description changed:
+ SRU Justification
+
+ [Impact]
+
+ Intel IPU drivers request firmwares but did not declare them with
MODULE_FIRMWARE:
+ ```
+ $ modinfo intel-ipu6 -k 7.0.0-29-generic | grep ^firmware
+ (empty output)
+ $ modinfo intel-ipu7 -k 7.0.0-29-generic | grep ^firmware
+ (empty output)
+ ```
+
+ And when intel-ipu6/intel-ipu7 were loaded in early boot stage:
+ ```
+ intel-ipu7 0000:00:05.0: firmware cpd file: intel/ipu/ipu7ptl_fw.bin
+ intel-ipu7 0000:00:05.0: Direct firmware load for intel/ipu/ipu7ptl_fw.bin
failed with error -2
+ intel-ipu7 0000:00:05.0: error -ENOENT: Requesting signed firmware
intel/ipu/ipu7ptl_fw.bin failed
+ intel-ipu7 0000:00:05.0: probe with driver intel-ipu7 failed with error -2
+ ```
+
+ [Fix]
+
+ No public fix yet. Add MODULE_FIRMWARE to ipu6/ipu6 module drivers. No
+ firmware requested for usbio/cvs so no fix for them.
+
+ [Test Plan]
+
+ 1. explicitly add intel-ipu6 and intel-ipu7 to initramfs creating tools
configs
+ - for initramfs-tools, add intel-ipu6-isys and intel-ipu7-isys to
/etc/initramfs-tools/modules or /etc/initramfs-tools/conf.d/ipu.conf
+ - for dracut, add `add_drivers+="intel-ipu6-isys intel-ipu7-isys"` to
/etc/dracut.conf or /etc/dracut.conf.d/ipu.conf
+ 2. sudo update-initramfs -u [-k <installed-kernel-version>]
+ 3. mkdir initrd && unmkinitramfs /boot/initrd.img-<installed-kernel-version>
initrd
+ 4. ls -al initrd/early3/usr/lib/firmware/intel/ipu/
+
+ [Where problems could occur]
+
+ Intel IPU drivers should usually be loaded after change root to the disk
+ with all the firmware blobs by default. Adding MODULE_FIRMWARE doesn't
+ change runtime functions.
+
+ [Other Info]
+
+ ipu6-drivers is available since Ubuntu Lunar, and ipu7-drivers since
+ Questing. Nominate J/N/R/S for ipu6-drivers and R/S for ipu7-drivers.
+
+ ========== original bug report ==========
+
Intel IPU7 ISYS drivers landed drivers/staging in v6.17-rc1 commit
b7fe4c0019b12 ("media: staging/ipu7: add Intel IPU7 PCI device driver"),
and IPU6 ISYS in v6.10-rc1 commit 25fedc021985a ("media: intel/ipu6: add
Intel IPU6 PCI device driver"). Neither has any MODULE_FIRMWARE
declarations.
intel-ipu7 0000:00:05.0: firmware cpd file: intel/ipu/ipu7ptl_fw.bin
intel-ipu7 0000:00:05.0: Direct firmware load for intel/ipu/ipu7ptl_fw.bin
failed with error -2
intel-ipu7 0000:00:05.0: error -ENOENT: Requesting signed firmware
intel/ipu/ipu7ptl_fw.bin failed
intel-ipu7 0000:00:05.0: probe with driver intel-ipu7 failed with error -2
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https://bugs.launchpad.net/bugs/2164611
Title:
ipu firmware not packed into initramfs automatically
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