[Bug 194761] amdgpu driver breaks on Oland (SI)

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https://bugzilla.kernel.org/show_bug.cgi?id=194761

Jean Delvare (jdelvare@xxxxxxx) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #26 from Jean Delvare (jdelvare@xxxxxxx) ---
Hmmm. I backported the patch to kernel 4.11.3, but it did not help. Then I
swapped the conditions, and it worked. That is, adev->mc.vram_width < 128
mapped to Cape Verde and adev->mc.vram_width >= 128 mapped to Hainan. Does that
make any sense? I do not claim I know what I'm doing.

My Oland card has adev->mc.vram_width == 64 and is apparently happy with the
Cape Verde configuration (I'd need to test further to confirm there is no
negative side effect.)

amdgpu 0000:01:00.0: VRAM: 1024M 0x0000000000000000 - 0x000000003FFFFFFF (1024M
used)
amdgpu 0000:01:00.0: GTT: 1024M 0x0000000040000000 - 0x000000007FFFFFFF
[drm] Detected VRAM RAM=1024M, BAR=256M
[drm] RAM width 64bits DDR3

I can provide additional information about my card, just tell me what you need
to know.

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