kernel 6.8.6 oled refresh rate patch

2 files changed, 115 insertions, 1 deletions

diff --git a/SOURCES/oled-deck-refresh-rate.patch b/SOURCES/oled-deck-refresh-rate.patch
new file mode 100644
index 0000000..d6643f9
--- /dev/null
+++ b/SOURCES/oled-deck-refresh-rate.patch
@@ -0,0 +1,109 @@
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+index 9246bca0a0089b24cf315de75d9bee155c74d32d..9c62552bec344e370996a028d809934e4a6f4420 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+@@ -196,6 +196,7 @@
+ extern uint amdgpu_smu_memory_pool_size;
+ extern int amdgpu_smu_pptable_id;
+ extern uint amdgpu_dc_feature_mask;
++extern uint amdgpu_freesync_vid_mode;
+ extern uint amdgpu_dc_debug_mask;
+ extern uint amdgpu_dc_visual_confirm;
+ extern uint amdgpu_dm_abm_level;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+index af7fae7907d71ed9efb771f50acdf483b4230113..8e1299fe2c54a809761301c15e8bcbe918986bac 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+@@ -199,6 +199,7 @@ int amdgpu_mes_kiq;
+ int amdgpu_noretry = -1;
+ int amdgpu_force_asic_type = -1;
+ int amdgpu_tmz = -1; /* auto */
++uint amdgpu_freesync_vid_mode;
+ int amdgpu_reset_method = -1; /* auto */
+ int amdgpu_num_kcq = -1;
+ int amdgpu_smartshift_bias;
+@@ -883,6 +884,32 @@ module_param_named(damageclips, amdgpu_damage_clips, int, 0444);
+ MODULE_PARM_DESC(tmz, "Enable TMZ feature (-1 = auto (default), 0 = off, 1 = on)");
+ module_param_named(tmz, amdgpu_tmz, int, 0444);
+ 
++/**
++ * DOC: freesync_video (uint)
++ * Enable the optimization to adjust front porch timing to achieve seamless
++ * mode change experience when setting a freesync supported mode for which full
++ * modeset is not needed.
++ *
++ * The Display Core will add a set of modes derived from the base FreeSync
++ * video mode into the corresponding connector's mode list based on commonly
++ * used refresh rates and VRR range of the connected display, when users enable
++ * this feature. From the userspace perspective, they can see a seamless mode
++ * change experience when the change between different refresh rates under the
++ * same resolution. Additionally, userspace applications such as Video playback
++ * can read this modeset list and change the refresh rate based on the video
++ * frame rate. Finally, the userspace can also derive an appropriate mode for a
++ * particular refresh rate based on the FreeSync Mode and add it to the
++ * connector's mode list.
++ *
++ * Note: This is an experimental feature.
++ *
++ * The default value: 0 (off).
++ */
++MODULE_PARM_DESC(
++	freesync_video,
++	"Enable freesync modesetting optimization feature (0 = off (default), 1 = on)");
++module_param_named(freesync_video, amdgpu_freesync_vid_mode, uint, 0444);
++
+ /**
+  * DOC: reset_method (int)
+  * GPU reset method (-1 = auto (default), 0 = legacy, 1 = mode0, 2 = mode1, 3 = mode2, 4 = baco)
+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 46dd06e8fc7e127dbaa0d7c8c96632c7972b901a..1010a89a17e627845c322fc4874fd1dba2f55cff 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -6233,7 +6233,8 @@ create_stream_for_sink(struct drm_connector *connector,
+ 		 */
+ 		DRM_DEBUG_DRIVER("No preferred mode found\n");
+ 	} else if (aconnector) {
+-		recalculate_timing = is_freesync_video_mode(&mode, aconnector);
++		recalculate_timing = amdgpu_freesync_vid_mode &&
++				 is_freesync_video_mode(&mode, aconnector);
+ 		if (recalculate_timing) {
+ 			freesync_mode = get_highest_refresh_rate_mode(aconnector, false);
+ 			drm_mode_copy(&saved_mode, &mode);
+@@ -7544,7 +7545,7 @@ static void amdgpu_dm_connector_add_freesync_modes(struct drm_connector *connect
+ 	struct amdgpu_dm_connector *amdgpu_dm_connector =
+ 		to_amdgpu_dm_connector(connector);
+
+-	if (!edid)
++	if (!(amdgpu_freesync_vid_mode && edid))
+ 		return;
+
+ 	if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
+@@ -9838,7 +9839,8 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
+ 		 * TODO: Refactor this function to allow this check to work
+ 		 * in all conditions.
+ 		 */
+-		if (dm_new_crtc_state->stream &&
++		if (amdgpu_freesync_vid_mode &&
++		    dm_new_crtc_state->stream &&
+ 		    is_timing_unchanged_for_freesync(new_crtc_state, old_crtc_state))
+ 			goto skip_modeset;
+
+@@ -9878,7 +9880,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
+ 		}
+
+ 		/* Now check if we should set freesync video mode */
+-		if (dm_new_crtc_state->stream &&
++		if (amdgpu_freesync_vid_mode && dm_new_crtc_state->stream &&
+ 		    dc_is_stream_unchanged(new_stream, dm_old_crtc_state->stream) &&
+ 		    dc_is_stream_scaling_unchanged(new_stream, dm_old_crtc_state->stream) &&
+ 		    is_timing_unchanged_for_freesync(new_crtc_state,
+@@ -9891,7 +9893,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
+ 			set_freesync_fixed_config(dm_new_crtc_state);
+
+ 			goto skip_modeset;
+-		} else if (aconnector &&
++		} else if (amdgpu_freesync_vid_mode && aconnector &&
+ 			   is_freesync_video_mode(&new_crtc_state->mode,
+ 						  aconnector)) {
+ 			struct drm_display_mode *high_mode;
+
diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index 33f68e5..1e2706d 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -169,7 +169,7 @@ Summary: The Linux kernel
 # This is needed to do merge window version magic
 %define patchlevel 8
 # This allows pkg_release to have configurable %%{?dist} tag
-%define specrelease 201%{?buildid}%{?dist}
+%define specrelease 202%{?buildid}%{?dist}
 # This defines the kabi tarball version
 %define kabiversion 6.8.6
 
@@ -1025,6 +1025,7 @@ Patch301: steam-deck.patch
 Patch310: steamdeck-oled-wifi.patch
 Patch312: steamdeck-oled-audio.patch
 Patch313: steamdeck-oled-hw-quirks.patch
+Patch314: oled-deck-refresh-rate.patch
 
 # t2 macbook patches
 Patch332: t2linux.patch
@@ -1913,6 +1914,7 @@ ApplyOptionalPatch steam-deck.patch
 ApplyOptionalPatch steamdeck-oled-wifi.patch
 ApplyOptionalPatch steamdeck-oled-audio.patch
 ApplyOptionalPatch steamdeck-oled-hw-quirks.patch
+ApplyOptionalPatch oled-deck-refresh-rate.patch
 
 # t2 macbook patches
 ApplyOptionalPatch t2linux.patch
@@ -4100,6 +4102,9 @@ fi\
 #
 #
 %changelog
+* Tue Apr 16 2024 Jan200101 <sentrycraft123@gmail.com> - 6.8.6-202.fsync.1
+- kernel-fsync v6.8.6 oled refresh rate patch
+
 * Sun Apr 14 2024 Jan200101 <sentrycraft123@gmail.com> - 6.8.6-201.fsync
 - kernel-fsync v6.8.6