Hardware 3D acceleration doesn't work anymore with the latest git kernel

[Michel Dänzer]

On 2017-11-27 01:20 PM, Christian König wrote:
> Am 27.11.2017 um 13:02 schrieb Michel Dänzer:
>> [SNIP]
>> I thought I did above...
>>
>> Commit f7871fd19389c5f64f625a4389675d0740f0dfe4 made the radeon driver
>> rely on ttm_populate_and_map_pages, which is implemented as:
>>
>> static inline int ttm_populate_and_map_pages(struct device *dev,
>> struct ttm_dma_tt *tt)
>> {
>>     return -ENOMEM;
>> }
>>
>> when neither CONFIG_SWIOTLB nor CONFIG_INTEL_IOMMU is enabled.
>> Previously, the driver worked fine without either of those enabled.
> Ah! Sorry my fault. It looks like I incorrectly explained to Tom how to
> handle the config options.
> 
> Please take a look at the attached patch, it should fix the issue (going
> to send that one out separately once more).

[...]

>   * Output the state of pools to debugfs file
>   */
>  int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
>  
> -
>  #if defined(CONFIG_SWIOTLB) || defined(CONFIG_INTEL_IOMMU)
>  /**
>   * Initialize pool allocator.

I'd drop the removal of this line, but either way,

Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>


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Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer