[Mesa-dev] [PATCH] r600g, radeonsi: add debug option which forces DMA for copy_region and blit

[Axel Davy]

Hi,

When reading si_dma.c code, it looks like the requested width of the 
copy is ignored except for PIPE_BUFFER.
Perhaps that explains the bugs observed ?

Axel Davy

On 06/09/2014 19:14, Andy Furniss wrote :
> Marek Olšák wrote:
>> From: Marek Olšák <marek.olsak at amd.com>
>>
>> ---
>>
>> Turn this on, run piglit, and pray for mercy.
>> It might be interesting to see if it makes 3D apps any faster. Or 
>> piglit.
>
> Well it's not piglit and I haven't benchmarked anything yet, but I get 
> a couple of faults at the start of Unigine Valley.
>
> [20635.429686] radeon 0000:01:00.0: GPU fault detected: 146 0x07bd3d14
> [20635.429690] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 
>   0x0000683D
> [20635.429691] radeon 0000:01:00.0: 
> VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x1D03D014
> [20635.429693] VM fault (0x04, vmid 14) at page 26685, write from DMA1 
> (61)
> [20635.429708] radeon 0000:01:00.0: GPU fault detected: 146 0x07bd3d14
> [20635.429709] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 
>   0x00000000
> [20635.429710] radeon 0000:01:00.0: 
> VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x1C03D00C
> [20635.429711] VM fault (0x0c, vmid 14) at page 0, read from DMA1 (61)
>
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