[Bug 74911] New: [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[Bug 74911] New: [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

            Bug ID: 74911
           Summary: [R9 270X] - Frozen display output and no response from
                    keyboard right after loading kernel image and
                    initramfs
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.15.0-rc2
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: combuster@archlinux.us
        Regression: No

After booting 3.15.0-rc2 kernel, I can only see a message from grub indicating
that kernel and initram images are loaded and that's it. No response from
keyboard, I can only do a hard reset.

After bisecting this is what I get:

1ebe92802eaf0569784dce843bc28a78842d236c is the first bad commit
commit 1ebe92802eaf0569784dce843bc28a78842d236c
Author: Alex Deucher <alexdeucher@gmail.com>
Date:   Fri Apr 11 11:21:49 2014 -0400

    drm/radeon: add support for newer mc ucode on SI (v2)

    May fix stability issues with some newer cards.

    v2: print out mc firmware version used and size

    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org

:040000 040000 cc6858148ad9e132feeb443839a6d367a1799b4c
d8888cd6da07ac42406fc8f7e4720477fc707f83 M      drivers

This makes sense, there is no radeon/PITCAIRN_mc2.bin blob anywhere. At least
not in linux-firmware branch. 

I have compiled radeon drivers into the kernel image itself, here is a relevant
config line:

CONFIG_EXTRA_FIRMWARE="radeon/PITCAIRN_ce.bin radeon/PITCAIRN_mc.bin
radeon/PITCAIRN_me.bin radeon/PITCAIRN_pfp.bin radeon/PITCAIRN_rlc.bin
radeon/PITCAIRN_smc.bin radeon/TAHITI_uvd.bin"

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Ivan Bulatovic from comment #0)
> After booting 3.15.0-rc2 kernel, I can only see a message from grub
> indicating that kernel and initram images are loaded and that's it. No
> response from keyboard, I can only do a hard reset.

How long have you waited for? Trying to load a non-existent firmware file may
only time out after a minute or so.


> This makes sense, there is no radeon/PITCAIRN_mc2.bin blob anywhere. At
> least not in linux-firmware branch. 

You can get it e.g. from:

http://people.freedesktop.org/~agd5f/radeon_ucode/


> I have compiled radeon drivers into the kernel image itself, [...]

It's recommended to build the radeon driver as a module instead and let the
firmware files be loaded from the initrd or normal filesystem.

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #2 from Ivan Bulatovic <combuster@archlinux.us> ---
> How long have you waited for? Trying to load a non-existent firmware file
> may only time out after a minute or so.

I've left it once for a while, but I'll test for how long and report back,
seems to me it was about 4min.

> 
> > This makes sense, there is no radeon/PITCAIRN_mc2.bin blob anywhere. At
> > least not in linux-firmware branch. 
> 
> You can get it e.g. from:
> 
> http://people.freedesktop.org/~agd5f/radeon_ucode/
> 

Thanx, got it!

> > I have compiled radeon drivers into the kernel image itself, [...]
> 
> It's recommended to build the radeon driver as a module instead and let the
> firmware files be loaded from the initrd or normal filesystem.

Well, if it was recommended I haven't saw that recommendation anywhere. Used to
build an intel driver into kernel image itself, KMS kicks in as early as
possible. I did the same with radeon, and it works for me great this whole
time.

Don't mean to be rude or anything, but I don't know if it is recommended (or
desirable) to commit a piece of code to mainline that will _require_ a blob
that can't be found in linux-firmware ?

I'll see about the timeout and report back in. 

Thanks Michel

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

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https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #3 from Ivan Bulatovic <combuster@archlinux.us> ---
Apologies, it opts out after a minute just like you've said it would.

[    0.793366] [drm] Loading PITCAIRN Microcode
[    0.793478] radeon 0000:01:00.0: Direct firmware load failed with error -2
[    0.793483] radeon 0000:01:00.0: Falling back to user helper
[    1.390284] tsc: Refined TSC clocksource calibration: 3092.973 MHz
[    2.390419] Switched to clocksource tsc
[   60.893686] [drm] radeon/PITCAIRN_mc.bin: 31076 bytes
[   60.893692] [drm] Internal thermal controller with fan control
[   60.893906] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
[   60.902426] [drm] radeon: dpm initialized
[   60.902575] [drm] GART: num cpu pages 262144, num gpu pages 262144
[   60.903606] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
[   60.903621] [drm] PCIE gen 2 link speeds already enabled
[   60.922014] [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000)

Now I'll try with mc2 part that you've linked.

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #4 from Ivan Bulatovic <combuster@archlinux.us> ---
[    0.779800] ATOM BIOS: C63101
[    0.779862] radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 -
0x000000007FFFFFFF (2048M used)
[    0.779867] radeon 0000:01:00.0: GTT: 1024M 0x0000000080000000 -
0x00000000BFFFFFFF
[    0.779872] [drm] Detected VRAM RAM=2048M, BAR=256M
[    0.779874] [drm] RAM width 256bits DDR
[    0.780115] [TTM] Zone  kernel: Available graphics memory: 2011376 kiB
[    0.780118] [TTM] Initializing pool allocator
[    0.780135] [TTM] Initializing DMA pool allocator
[    0.780378] [drm] radeon: 2048M of VRAM memory ready
[    0.780383] [drm] radeon: 1024M of GTT memory ready.
[    0.780442] [drm] Loading PITCAIRN Microcode
[    0.780447] [drm] radeon/PITCAIRN_mc2.bin: 31100 bytes
[    0.780451] [drm] Internal thermal controller with fan control
[    0.780677] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
[    0.789158] [drm] radeon: dpm initialized
[    0.789301] [drm] GART: num cpu pages 262144, num gpu pages 262144
[    0.790351] [drm] probing gen 2 caps for device 8086:101 = 2212d02/0
[    0.790365] [drm] PCIE gen 2 link speeds already enabled
[    0.804243] [drm] PCIE GART of 1024M enabled (table at 0x0000000000276000).

Works now, 3.15.0-rc3 - no problems with the PITCAIRN_mc2.bin copied in
/usr/lib/modules/firmware/radeon.

Thanks Michel for clarification and help.

I won't touch the status of the bug report since I don't know if this one
should be marked as resolved untill mc2 parts hit the linux-firmware branch.

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #5 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Ivan Bulatovic from comment #3)
> Apologies, it opts out after a minute just like you've said it would.

Yep, that timeout is one of the biggest downsides of building the driver into
the kernel instead of as a module.

I'd say there's no bug here, at least not in the radeon driver.

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Ivan Bulatovic from comment #2)
> Don't mean to be rude or anything, but I don't know if it is recommended (or
> desirable) to commit a piece of code to mainline that will _require_ a blob
> that can't be found in linux-firmware ?

The radeon driver has always required microcode for some functionality.

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[Bug 74911] [R9 270X] - Frozen display output and no response from keyboard right after loading kernel image and initramfs

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=74911

Ivan Bulatovic <combuster@archlinux.us> changed:

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

--- Comment #7 from Ivan Bulatovic <combuster@archlinux.us> ---
Fixed with:

4848a1e059de5aa723ff6627b90de8a5d9632626

radeon: add mc2 firmware for SI/CI GPUs

Thanks Michel and Alex for uploading this one.

Closing :)

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