From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 80331] [BISECTED]Radeon driver broken in kernel 3.12.15 onwards
 for ATI Radeon HD4770 Card
Date: Wed, 30 Jul 2014 13:39:09 +0000
Message-ID: <bug-80331-2300-XUXGYnBC48@https.bugzilla.kernel.org/>
References: <bug-80331-2300@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=80331

--- Comment #13 from Alex Deucher <alexdeucher@gmail.com> ---
You need to compile the firmware into your kernel when you build the driver
into the kernel.  In both of your static builds, the firmware fails to load:

static-with-patch:
[    0.263616] r600_cp: Failed to load firmware "radeon/RV730_pfp.bin"
[    0.263668] [drm:rv770_init] *ERROR* Failed to load firmware!
[    0.263721] radeon 0000:01:00.0: Fatal error during GPU init

static-without-patch:
[    0.269288] [drm] Loading RV730 Microcode
[    0.269354] r600_cp: Failed to load firmware "radeon/RV730_pfp.bin"
[    0.269403] [drm:rv770_startup] *ERROR* Failed to load firmware!

You need to specify CONFIG_EXTRA_FIRMWARE in your kernel configuration and
point it to the firmware files required by the driver.  E.g.,

CONFIG_FIRMWARE_IN_KERNEL=y
CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"
CONFIG_EXTRA_FIRMWARE="radeon/RV730_me.bin radeon/RV730_pfp.bin
radeon/R700_rlc.bin RV740_smc.bin"

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