[Bug 85661] New: Double Firmware for Radeon GPUs (at least HAWAII)

[Bug 85661] New: Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

            Bug ID: 85661
           Summary: Double Firmware for Radeon GPUs (at least HAWAII)
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.17.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: debian@carbon-project.org
                CC: alexdeucher@gmail.com
        Regression: No

Not sure if this is a mistake or I'm missing something here, but I was looking
at
<https://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/tree/radeon>
and noticed, that there are firmware files of the same name – except case – but
different content for HAWAII and others, eg. HAWAII_ce.bin and hawaii_ce.bin:
7fa992d86295f741e8cdea76c5b6c632  linux-firmware/radeon/HAWAII_ce.bin
9e05820da42549ce9c89d147cf1f8e19  linux-firmware/radeon/hawaii_ce.bin
For other firmware parts (eg. mc2) there is only one version available.

Now the question is: is this intended? Or should there only be one version? If
I had to guess, I'd say the lower-case variants are the current ones, since
they have the same checksums as the firmware I've downloaded from
<http://people.freedesktop.org/~agd5f/radeon_ucode/> in the course of
<https://bugs.freedesktop.org/show_bug.cgi?id=78453>.

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[Bug 85661] Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mike@fireburn.co.uk

--- Comment #1 from Mike Lothian <mike@fireburn.co.uk> ---
The small case firmware is the new firmware images that resolve some bugs

I'm hoping in future they have a better versioning system

I'm guessing they thought they wouldn't need to release fixes

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[Bug 85661] Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Yes, this is intended.  The new firmware uses a new header format with version
information in the header so we can update that version seemlessly without
needing a add driver support for a new firmware file.  The upper case firmware
is the old version for kernels without explicit support for the new firmware.

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[Bug 85661] Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

--- Comment #3 from Kai Wasserbäch <debian@carbon-project.org> ---
And that there's no lower-case mc2 firmware is ok too? If so, then this bug can
be closed as "not a bug". Sorry for the noise.

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[Bug 85661] Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Correct, there is no lowercase mc2.

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[Bug 85661] Double Firmware for Radeon GPUs (at least HAWAII)

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=85661

Kai Wasserbäch <debian@carbon-project.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Kai Wasserbäch <debian@carbon-project.org> ---
Not a bug, just confusing. Thanks, Alex, for explaining this.

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