[PATCH 00/18] *** multiple level VMPT enablement ***

[Christian König]

Patches #11 and #18 are Reviewed-by: Christian König 
<christian.koenig at amd.com>.

Patch #12 is a NAK, that will also increase the VM space for pre gfx9 
and we already found that this isn't a good idea.

We should change how that value is evaluated in the different GMC 
handling code instead.

In other words, set it to -1 as default value and handle -1 in gmc 
v6/v7/v9 as 64GB, while in gmc v9 as 1TB (or even 256TB?).

Patch #13, #14: Good catch, but please squash into my original patch #8.

Patch #15, #16, #17: Please squash into patch #10.

Apart from that thanks a lot to pick this up while I was busy tracking 
the hw problem down.

And BTW did you tested the 48bit (256TB) address space support as well? 
That should also work now.

Regards,
Christian.

Am 24.03.2017 um 04:16 schrieb Chunming Zhou:
> *** BLURB HERE ***
>  From Vega, ascis start to support multiple level vmpt, the series is to implement it.
>
> Tested successfully with 2/3/4 levels.
>
> Christian König (10):
>    drm/amdgpu: rename page_directory_fence to last_dir_update
>    drm/amdgpu: add the VM pointer to the amdgpu_pte_update_params as well
>    drm/amdgpu: add num_level to the VM manager
>    drm/amdgpu: generalize page table level
>    drm/amdgpu: handle multi level PD size calculation
>    drm/amdgpu: handle multi level PD during validation
>    drm/amdgpu: handle multi level PD in the LRU
>    drm/amdgpu: handle multi level PD updates
>    drm/amdgpu: handle multi level PD during PT updates
>    drm/amdgpu: add alloc/free for multi level PDs
>
> Chunming Zhou (8):
>    drm/amdgpu: set page table depth by num_level
>    drm/amdgpu: block size of multiple level vmpt prefers one page
>    drm/amdgpu: fix update sub levels
>    drm/amdgpu: sub levels need to update regardless of parent updates
>    drm/amdgpu: clear entries allocation
>    drm/amdgpu: fix entries index calculation
>    drm/amdgpu: need alloc sub level even parent bo was allocated
>    drm/amdgpu: enable four level vmpt
>
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c   |   6 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c  |   4 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c  |   2 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c   | 474 ++++++++++++++++++++-----------
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h   |  16 +-
>   drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c |   3 +-
>   drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c    |   1 +
>   drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c    |   1 +
>   drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c    |   1 +
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c    |   1 +
>   drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c  |   2 +-
>   11 files changed, 336 insertions(+), 175 deletions(-)
>