[Bug 78453] [HAWAII] Get acceleration working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78453

--- Comment #54 from vincent <vljn at ovi.com> ---
Content of radeon_fence_info in this case is :

--- ring 0 ---
Last signaled fence 0x0000000000000002
Last emitted        0x0000000000000003
Last sync to ring 1 0x0000000000000000
Last sync to ring 2 0x0000000000000000
Last sync to ring 3 0x0000000000000000
Last sync to ring 4 0x0000000000000000
Last sync to ring 5 0x0000000000000000
--- ring 1 ---
Last signaled fence 0x0000000000000003
Last emitted        0x0000000000000003
Last sync to ring 0 0x0000000000000000
Last sync to ring 2 0x0000000000000000
Last sync to ring 3 0x0000000000000000
Last sync to ring 4 0x0000000000000000
Last sync to ring 5 0x0000000000000000
--- ring 2 ---
Last signaled fence 0x0000000000000001
Last emitted        0x0000000000000001
Last sync to ring 0 0x0000000000000000
Last sync to ring 1 0x0000000000000000
Last sync to ring 3 0x0000000000000000
Last sync to ring 4 0x0000000000000000
Last sync to ring 5 0x0000000000000000
--- ring 3 ---
Last signaled fence 0x00000000000007f7
Last emitted        0x00000000000007f7
Last sync to ring 0 0x0000000000000000
Last sync to ring 1 0x0000000000000000
Last sync to ring 2 0x0000000000000000
Last sync to ring 4 0x0000000000000000
Last sync to ring 5 0x0000000000000000
--- ring 4 ---
Last signaled fence 0x0000000000000001
Last emitted        0x0000000000000001
Last sync to ring 0 0x0000000000000000
Last sync to ring 1 0x0000000000000000
Last sync to ring 2 0x0000000000000000
Last sync to ring 3 0x0000000000000000
Last sync to ring 5 0x0000000000000000
--- ring 5 ---
Last signaled fence 0x0000000000000002
Last emitted        0x0000000000000002
Last sync to ring 0 0x0000000000000000
Last sync to ring 1 0x0000000000000000
Last sync to ring 2 0x0000000000000000
Last sync to ring 3 0x0000000000000000
Last sync to ring 4 0x0000000000000000


I can't run eglinfo in this case so I think it's expected that ring 0 does not
attempt to sync with ring 3.
I don't know if dmesg attached in #53 is enough to determine why the dma engine
is stalling.

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