[Bug 76490] Hang during boot when DPM is on (R9 270X)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #119 from Daniel Exner <dex+fdobugzilla at dragonslave.de> ---
Good news!

With kernel 4.10.0-rc5-00071-ga4685d2f58e2 that includes:

drm/radeon/si: load special ucode for certain MC configs

from drm-fixes-4.10 branch and the si58_mc.bin file from 

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

I could boot fine.

This small change I made indeed showed it is using the file for my card:
+       {
+               DRM_INFO("Loading special si58_mc Microcode\n");
                snprintf(fw_name, sizeof(fw_name), "radeon/si58_mc.bin");
+       }

Then I could remove the quirk I needed!

-       { PCI_VENDOR_ID_ATI, 0x6810, 0x1462, 0x3036, 0, 120000 },

I guess 3h portal 2 are enough to verify everything works now as it should.

Perhaps others can test their quirk lines, too?

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