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drm/amd/display: Enable Freesync Video Mode by default 

[Why&How]
Freesync Video Mode is a experimental feature previously,
and need to be enabled by kernel parameter. We enable it
by default with removing module paramterter in amdgpu_dm.

v2: squash the patches together

Signed-off-by: Solomon Chiu <solomon.chiu@amd.com>
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Solomon Chiu 2022-01-06 17:11:48 +08:00 committed by Alex Deucher
parent 6a8cf6349c
commit de05abe6b9
3 changed files with 5 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -197,7 +197,6 @@ extern int amdgpu_emu_mode;
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_dm_abm_level;
extern int amdgpu_backlight;

27
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -173,7 +173,6 @@ int amdgpu_mes;
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;
@ -842,32 +841,6 @@ module_param_named(backlight, amdgpu_backlight, bint, 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, 5 = pci)

12
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -6435,8 +6435,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
*/
DRM_DEBUG_DRIVER("No preferred mode found\n");
} else {
recalculate_timing = amdgpu_freesync_vid_mode &&
is_freesync_video_mode(&mode, aconnector);
recalculate_timing = is_freesync_video_mode(&mode, aconnector);
if (recalculate_timing) {
freesync_mode = get_highest_refresh_rate_mode(aconnector, false);
saved_mode = mode;
@ -8304,7 +8303,7 @@ 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 (!(amdgpu_freesync_vid_mode && edid))
if (!edid)
return;
if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
@ -10271,8 +10270,7 @@ 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 (amdgpu_freesync_vid_mode &&
dm_new_crtc_state->stream &&
if (dm_new_crtc_state->stream &&
is_timing_unchanged_for_freesync(new_crtc_state, old_crtc_state))
goto skip_modeset;
@ -10307,7 +10305,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
if (!dm_old_crtc_state->stream)
goto skip_modeset;
if (amdgpu_freesync_vid_mode && dm_new_crtc_state->stream &&
if (dm_new_crtc_state->stream &&
is_timing_unchanged_for_freesync(new_crtc_state,
old_crtc_state)) {
new_crtc_state->mode_changed = false;
@ -10319,7 +10317,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
set_freesync_fixed_config(dm_new_crtc_state);
goto skip_modeset;
} else if (amdgpu_freesync_vid_mode && aconnector &&
} else if (aconnector &&
is_freesync_video_mode(&new_crtc_state->mode,
aconnector)) {
struct drm_display_mode *high_mode;