[PATCH] Revert "drm/amdgpu/display: set vblank_disable_immediate for DC"
Harry Wentland
harry.wentland at amd.com
Thu Jun 23 13:36:24 UTC 2022
On 2022-06-20 18:38, Alex Deucher wrote:
> This reverts commit 92020e81ddbeac351ea4a19bcf01743f32b9c800.
>
> This causes stuttering and timeouts with DMCUB for some users
> so revert it until we understand why and and safely enable it
> to save power.
>
> Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1887
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Cc: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
Harry
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 1 +
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ---
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> index b4cf8717f554..89011bae7588 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> @@ -320,6 +320,7 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
> if (!amdgpu_device_has_dc_support(adev)) {
> if (!adev->enable_virtual_display)
> /* Disable vblank IRQs aggressively for power-saving */
> + /* XXX: can this be enabled for DC? */
> adev_to_drm(adev)->vblank_disable_immediate = true;
>
> r = drm_vblank_init(adev_to_drm(adev), adev->mode_info.num_crtc);
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index c2bc7db85d7e..24959cb85c48 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -4293,9 +4293,6 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
> }
> }
>
> - /* Disable vblank IRQs aggressively for power-saving. */
> - adev_to_drm(adev)->vblank_disable_immediate = true;
> -
> /* loops over all connectors on the board */
> for (i = 0; i < link_cnt; i++) {
> struct dc_link *link = NULL;
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