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drm/i915/panelreplay: enable/disable panel replay

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TRANS_DP2_CTL register is programmed to enable panel replay from source
and sink is enabled through panel replay dpcd configuration address.

Bspec: 1407940617

v1: Initial version.
v2:
- Use pr_* flags instead psr_* flags. [Jouni]
- Remove intel_dp_is_edp check as edp1.5 also has panel replay. [Jouni]

v3: Cover letter updated and selective fetch condition check is added
before updating its bit in PSR2_MAN_TRK_CTL register. [Jouni]

v4: Selective fetch related PSR2_MAN_TRK_CTL programmming dropped. [Jouni]

v5: Added PSR2_MAN_TRK_CTL programming as needed for Continuous Full
Frame (CFF) update.

v6: Rebased on latest.

Note: Initial plan is to enable panel replay in  full-screen live active
frame update mode. In a incremental approach panel replay will be enabled
in selctive update mode if there is any gap in curent implementation.

Cc: Jouni Högander <jouni.hogander@intel.com>
Cc: Arun R Murthy <arun.r.murthy@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231108072303.3414118-6-animesh.manna@intel.com
This commit is contained in:
Animesh Manna
2023-11-08 12:53:02 +05:30
parent cceeaa312d
commit 3257e55d3e
3 changed files with 55 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/display/intel_ddi.c
View File

@@ -2800,10 +2800,15 @@ static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,
const struct drm_connector_state *conn_state)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
if (HAS_DP20(dev_priv))
if (HAS_DP20(dev_priv)) {
intel_dp_128b132b_sdp_crc16(enc_to_intel_dp(encoder),
crtc_state);
if (crtc_state->has_panel_replay)
drm_dp_dpcd_writeb(&intel_dp->aux, PANEL_REPLAY_CONFIG,
DP_PANEL_REPLAY_ENABLE);
}
if (DISPLAY_VER(dev_priv) >= 14)
mtl_ddi_pre_enable_dp(state, encoder, crtc_state, conn_state);

1
drivers/gpu/drm/i915/display/intel_display_types.h
View File

@@ -1711,6 +1711,7 @@ struct intel_psr {
u16 su_y_granularity;
bool source_panel_replay_support;
bool sink_panel_replay_support;
bool panel_replay_enabled;
u32 dc3co_exitline;
u32 dc3co_exit_delay;
struct delayed_work dc3co_work;

63
drivers/gpu/drm/i915/display/intel_psr.c
View File

@@ -609,8 +609,11 @@ static void intel_psr_enable_sink(struct intel_dp *intel_dp)
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
u8 dpcd_val = DP_PSR_ENABLE;
/* Enable ALPM at sink for psr2 */
if (intel_dp->psr.panel_replay_enabled)
return;
if (intel_dp->psr.psr2_enabled) {
/* Enable ALPM at sink for psr2 */
drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG,
DP_ALPM_ENABLE |
DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE);
@@ -783,6 +786,17 @@ static u8 frames_before_su_entry(struct intel_dp *intel_dp)
return frames_before_su_entry;
}
static void dg2_activate_panel_replay(struct intel_dp *intel_dp)
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
intel_de_rmw(dev_priv, PSR2_MAN_TRK_CTL(intel_dp->psr.transcoder),
0, ADLP_PSR2_MAN_TRK_CTL_SF_CONTINUOS_FULL_FRAME);
intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder), 0,
TRANS_DP2_PANEL_REPLAY_ENABLE);
}
static void hsw_activate_psr2(struct intel_dp *intel_dp)
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
@@ -1379,18 +1393,23 @@ void intel_psr_get_config(struct intel_encoder *encoder,
return;
intel_dp = &dig_port->dp;
if (!CAN_PSR(intel_dp))
if (!(CAN_PSR(intel_dp) || CAN_PANEL_REPLAY(intel_dp)))
return;
mutex_lock(&intel_dp->psr.lock);
if (!intel_dp->psr.enabled)
goto unlock;
/*
* Not possible to read EDP_PSR/PSR2_CTL registers as it is
* enabled/disabled because of frontbuffer tracking and others.
*/
pipe_config->has_psr = true;
if (intel_dp->psr.panel_replay_enabled) {
pipe_config->has_panel_replay = true;
} else {
/*
* Not possible to read EDP_PSR/PSR2_CTL registers as it is
* enabled/disabled because of frontbuffer tracking and others.
*/
pipe_config->has_psr = true;
}
pipe_config->has_psr2 = intel_dp->psr.psr2_enabled;
pipe_config->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_VSC);
@@ -1427,8 +1446,10 @@ static void intel_psr_activate(struct intel_dp *intel_dp)
lockdep_assert_held(&intel_dp->psr.lock);
/* psr1 and psr2 are mutually exclusive.*/
if (intel_dp->psr.psr2_enabled)
/* psr1, psr2 and panel-replay are mutually exclusive.*/
if (intel_dp->psr.panel_replay_enabled)
dg2_activate_panel_replay(intel_dp);
else if (intel_dp->psr.psr2_enabled)
hsw_activate_psr2(intel_dp);
else
hsw_activate_psr1(intel_dp);
@@ -1606,6 +1627,7 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
drm_WARN_ON(&dev_priv->drm, intel_dp->psr.enabled);
intel_dp->psr.psr2_enabled = crtc_state->has_psr2;
intel_dp->psr.panel_replay_enabled = crtc_state->has_panel_replay;
intel_dp->psr.busy_frontbuffer_bits = 0;
intel_dp->psr.pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
intel_dp->psr.transcoder = crtc_state->cpu_transcoder;
@@ -1621,8 +1643,12 @@ static void intel_psr_enable_locked(struct intel_dp *intel_dp,
if (!psr_interrupt_error_check(intel_dp))
return;
drm_dbg_kms(&dev_priv->drm, "Enabling PSR%s\n",
intel_dp->psr.psr2_enabled ? "2" : "1");
if (intel_dp->psr.panel_replay_enabled)
drm_dbg_kms(&dev_priv->drm, "Enabling Panel Replay\n");
else
drm_dbg_kms(&dev_priv->drm, "Enabling PSR%s\n",
intel_dp->psr.psr2_enabled ? "2" : "1");
intel_write_dp_vsc_sdp(encoder, crtc_state, &crtc_state->psr_vsc);
intel_snps_phy_update_psr_power_state(dev_priv, phy, true);
intel_psr_enable_sink(intel_dp);
@@ -1651,7 +1677,10 @@ static void intel_psr_exit(struct intel_dp *intel_dp)
return;
}
if (intel_dp->psr.psr2_enabled) {
if (intel_dp->psr.panel_replay_enabled) {
intel_de_rmw(dev_priv, TRANS_DP2_CTL(intel_dp->psr.transcoder),
TRANS_DP2_PANEL_REPLAY_ENABLE, 0);
} else if (intel_dp->psr.psr2_enabled) {
tgl_disallow_dc3co_on_psr2_exit(intel_dp);
val = intel_de_rmw(dev_priv, EDP_PSR2_CTL(cpu_transcoder),
@@ -1700,8 +1729,11 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
if (!intel_dp->psr.enabled)
return;
drm_dbg_kms(&dev_priv->drm, "Disabling PSR%s\n",
intel_dp->psr.psr2_enabled ? "2" : "1");
if (intel_dp->psr.panel_replay_enabled)
drm_dbg_kms(&dev_priv->drm, "Disabling Panel Replay\n");
else
drm_dbg_kms(&dev_priv->drm, "Disabling PSR%s\n",
intel_dp->psr.psr2_enabled ? "2" : "1");
intel_psr_exit(intel_dp);
intel_psr_wait_exit_locked(intel_dp);
@@ -1734,6 +1766,7 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp)
drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, 0);
intel_dp->psr.enabled = false;
intel_dp->psr.panel_replay_enabled = false;
intel_dp->psr.psr2_enabled = false;
intel_dp->psr.psr2_sel_fetch_enabled = false;
intel_dp->psr.psr2_sel_fetch_cff_enabled = false;
@@ -2305,7 +2338,7 @@ void intel_psr_post_plane_update(struct intel_atomic_state *state,
intel_atomic_get_new_crtc_state(state, crtc);
struct intel_encoder *encoder;
if (!crtc_state->has_psr)
if (!(crtc_state->has_psr || crtc_state->has_panel_replay))
return;
for_each_intel_encoder_mask_with_psr(state->base.dev, encoder,