Unverified Commit e45b6716 authored by Hamza Mahfooz's avatar Hamza Mahfooz
Browse files

drm/amd/display: use a more lax vblank enable policy for DCN35+ 



Ideally, we want to enable immediate vblank disable, when possible and
we should be able to do so on DCN35+, if PSR isn't supported by a given
CRTC.

Suggested-by: default avatarLeo Li <sunpeng.li@amd.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarHamza Mahfooz <hamza.mahfooz@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240822161856.174600-3-hamza.mahfooz@amd.com
parent 537ef0f8

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+6 −1
Original line number Diff line number Diff line
@@ -8246,7 +8246,8 @@ static void manage_dm_interrupts(struct amdgpu_device *adev, 
		if (amdgpu_ip_version(adev, DCE_HWIP, 0) <

		    IP_VERSION(3, 5, 0)) {

			drm_crtc_vblank_on(&acrtc->base);

		} else {

		} else if (acrtc_state->stream->link->psr_settings.psr_version <

			   DC_PSR_VERSION_UNSUPPORTED) {

			timing = &acrtc_state->stream->timing;



			/* at least 2 frames */
@@ -8258,6 +8259,10 @@ static void manage_dm_interrupts(struct amdgpu_device *adev, 
			config.offdelay_ms = offdelay ?: 30;

			drm_crtc_vblank_on_config(&acrtc->base,

						  &config);

		} else {

			config.disable_immediate = true;

			drm_crtc_vblank_on_config(&acrtc->base,

						  &config);

		}



		amdgpu_irq_get(