[PATCH 5/6] drm/amd/display: Enable Replay for static screen use cases

[Bhawanpreet Lakha]

- Setup replay config on device init.
- Enable replay if feature is enabled and psr is not going to be enabled
- Add debug masks to enable replay on supported ASICs

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 +++++++++++++++++++
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    |  4 ++++
 drivers/gpu/drm/amd/include/amd_shared.h      |  2 ++
 3 files changed, 25 insertions(+)

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 2446529c329a..a6551c049cc1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -65,6 +65,7 @@
 #include "amdgpu_dm_debugfs.h"
 #endif
 #include "amdgpu_dm_psr.h"
+#include "amdgpu_dm_replay.h"
 
 #include "ivsrcid/ivsrcid_vislands30.h"
 
@@ -4315,6 +4316,7 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 	enum dc_connection_type new_connection_type = dc_connection_none;
 	const struct dc_plane_cap *plane;
 	bool psr_feature_enabled = false;
+	bool replay_feature_enabled = false;
 	int max_overlay = dm->dc->caps.max_slave_planes;
 
 	dm->display_indexes_num = dm->dc->caps.max_streams;
@@ -4424,6 +4426,20 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 		}
 	}
 
+	if (!(amdgpu_dc_debug_mask & DC_DISABLE_REPLAY)) {
+		switch (adev->ip_versions[DCE_HWIP][0]) {
+		case IP_VERSION(3, 1, 4):
+		case IP_VERSION(3, 1, 5):
+		case IP_VERSION(3, 1, 6):
+		case IP_VERSION(3, 2, 0):
+		case IP_VERSION(3, 2, 1):
+			replay_feature_enabled = true;
+			break;
+		default:
+			replay_feature_enabled = amdgpu_dc_feature_mask & DC_REPLAY_MASK;
+			break;
+		}
+	}
 	/* loops over all connectors on the board */
 	for (i = 0; i < link_cnt; i++) {
 		struct dc_link *link = NULL;
@@ -4480,6 +4496,9 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 				 */
 				if (link->psr_settings.psr_feature_enabled)
 					adev_to_drm(adev)->vblank_disable_immediate = false;
+
+				if (replay_feature_enabled)
+					amdgpu_dm_setup_replay(link, aconnector);
 			}
 		}
 		amdgpu_set_panel_orientation(&aconnector->base);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
index 440fc0869a34..44323cef5dfd 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -29,6 +29,7 @@
 #include "dc.h"
 #include "amdgpu.h"
 #include "amdgpu_dm_psr.h"
+#include "amdgpu_dm_replay.h"
 #include "amdgpu_dm_crtc.h"
 #include "amdgpu_dm_plane.h"
 #include "amdgpu_dm_trace.h"
@@ -132,8 +133,11 @@ static void vblank_control_worker(struct work_struct *work)
 #ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
 			   !amdgpu_dm_crc_window_is_activated(&vblank_work->acrtc->base) &&
 #endif
+			   vblank_work->stream->link->panel_config.psr.disallow_replay &&
 			   vblank_work->acrtc->dm_irq_params.allow_psr_entry) {
 			amdgpu_dm_psr_enable(vblank_work->stream);
+		} else if (vblank_work->stream->link->replay_settings.replay_feature_enabled) {
+			amdgpu_dm_replay_enable(vblank_work->stream, false);
 		}
 	}
 
diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
index f175e65b853a..c6d4cca646c2 100644
--- a/drivers/gpu/drm/amd/include/amd_shared.h
+++ b/drivers/gpu/drm/amd/include/amd_shared.h
@@ -240,6 +240,7 @@ enum DC_FEATURE_MASK {
 	DC_DISABLE_LTTPR_DP2_0 = (1 << 6), //0x40, disabled by default
 	DC_PSR_ALLOW_SMU_OPT = (1 << 7), //0x80, disabled by default
 	DC_PSR_ALLOW_MULTI_DISP_OPT = (1 << 8), //0x100, disabled by default
+	DC_REPLAY_MASK = (1 << 9), //0x200, disabled by default for dcn < 3.1.4
 };
 
 enum DC_DEBUG_MASK {
@@ -250,6 +251,7 @@ enum DC_DEBUG_MASK {
 	DC_DISABLE_PSR = 0x10,
 	DC_FORCE_SUBVP_MCLK_SWITCH = 0x20,
 	DC_DISABLE_MPO = 0x40,
+	DC_DISABLE_REPLAY = 0x50,
 };
 
 enum amd_dpm_forced_level;
-- 
2.25.1