Re: [PATCH AUTOSEL 5.6 33/50] drm/amdgpu: bump version for invalidate L2 before SDMA IBs

[Michel DÃnzer]

On 2020-05-07 4:27 p.m., Sasha Levin wrote:
> From: Marek OlÅÃk <marek.olsak@xxxxxxx>
> 
> [ Upstream commit 9017a4897a20658f010bebea825262963c10afa6 ]
> 
> This fixes GPU hangs due to cache coherency issues.
> Bump the driver version. Split out from the original patch.
> 
> Signed-off-by: Marek OlÅÃk <marek.olsak@xxxxxxx>
> Reviewed-by: Christian KÃnig <christian.koenig@xxxxxxx>
> Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 42f4febe24c6d..8d45a2b662aeb 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -85,9 +85,10 @@
>   * - 3.34.0 - Non-DC can flip correctly between buffers with different pitches
>   * - 3.35.0 - Add drm_amdgpu_info_device::tcc_disabled_mask
>   * - 3.36.0 - Allow reading more status registers on si/cik
> + * - 3.37.0 - L2 is invalidated before SDMA IBs, needed for correctness
>   */
>  #define KMS_DRIVER_MAJOR	3
> -#define KMS_DRIVER_MINOR	36
> +#define KMS_DRIVER_MINOR	37
>  #define KMS_DRIVER_PATCHLEVEL	0
>  
>  int amdgpu_vram_limit = 0;
> 

This requires the parent commit fdf83646c0542ecfb9adc4db8f741a1f43dca058
"drm/amdgpu: invalidate L2 before SDMA IBs (v2)". KMS_DRIVER_MINOR is
bumped to signal to userspace the fix in that commit is present.


-- 
Earthling Michel DÃnzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer