Hook up drm_crtc_vblank_on_config() in amdgpu_dm. So, that we can enable
PSR and other static screen optimizations more quickly, while avoiding
stuttering issues that are accompanied by the following dmesg error:
[drm:dc_dmub_srv_wait_idle [amdgpu]] *ERROR* Error waiting for DMUB idle: status=3
This also allows us to mimic how vblanking is handled by the windows
amdgpu driver.
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
---
v3: use a less conservative policy
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 38 ++++++++++++++++---
1 file changed, 33 insertions(+), 5 deletions(-)
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 7e7929f24ae4..b8f57b466c35 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8232,7 +8232,7 @@ static int amdgpu_dm_encoder_init(struct drm_device *dev,
static void manage_dm_interrupts(struct amdgpu_device *adev,
struct amdgpu_crtc *acrtc,
- bool enable)
+ struct dm_crtc_state *acrtc_state)
{
/*
* We have no guarantee that the frontend index maps to the same
@@ -8244,9 +8244,36 @@ static void manage_dm_interrupts(struct amdgpu_device *adev,
amdgpu_display_crtc_idx_to_irq_type(
adev,
acrtc->crtc_id);
+ struct drm_vblank_crtc_config config = {0};
+ struct dc_crtc_timing *timing;
+ int vsync_rate_hz;
+ int offdelay = 30;
+
+ if (acrtc_state) {
+ timing = &acrtc_state->stream->timing;
+
+ vsync_rate_hz = div64_u64(div64_u64((timing->pix_clk_100hz *
+ (u64)100),
+ timing->v_total),
+ timing->h_total);
+
+ if (amdgpu_ip_version(adev, DCE_HWIP, 0) <
+ IP_VERSION(3, 5, 0) ||
+ acrtc_state->stream->link->psr_settings.psr_version <
+ DC_PSR_VERSION_UNSUPPORTED) {
+ if (vsync_rate_hz)
+ /* at least 2 frames */
+ offdelay = 2000 / vsync_rate_hz + 1;
+
+ config.offdelay_ms = offdelay;
+ drm_crtc_vblank_on_config(&acrtc->base,
+ &config);
+ } else {
+ config.disable_immediate = true;
+ drm_crtc_vblank_on_config(&acrtc->base,
+ &config);
+ }
- if (enable) {
- drm_crtc_vblank_on(&acrtc->base);
amdgpu_irq_get(
adev,
&adev->pageflip_irq,
@@ -9320,7 +9347,7 @@ static void amdgpu_dm_commit_streams(struct drm_atomic_state *state,
if (old_crtc_state->active &&
(!new_crtc_state->active ||
drm_atomic_crtc_needs_modeset(new_crtc_state))) {
- manage_dm_interrupts(adev, acrtc, false);
+ manage_dm_interrupts(adev, acrtc, NULL);
dc_stream_release(dm_old_crtc_state->stream);
}
}
@@ -9835,7 +9862,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
drm_atomic_crtc_needs_modeset(new_crtc_state))) {
dc_stream_retain(dm_new_crtc_state->stream);
acrtc->dm_irq_params.stream = dm_new_crtc_state->stream;
- manage_dm_interrupts(adev, acrtc, true);
+ manage_dm_interrupts(adev, acrtc,
+ to_dm_crtc_state(new_crtc_state));
}
/* Handle vrr on->off / off->on transitions */
amdgpu_dm_handle_vrr_transition(dm_old_crtc_state, dm_new_crtc_state);
--
2.46.0
