diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c new file mode 100644 index 000000000000..32d3086c4cb7 --- /dev/null +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c @@ -0,0 +1,183 @@ +/* + * Copyright 2023 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#include "amdgpu_dm_replay.h" +#include "dc.h" +#include "dm_helpers.h" +#include "amdgpu_dm.h" +#include "modules/power/power_helpers.h" +#include "dmub/inc/dmub_cmd.h" +#include "dc/inc/link.h" + +/* + * link_supports_replay() - check if the link supports replay + * @link: link + * @aconnector: aconnector + * + */ +static bool link_supports_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector) +{ + struct dm_connector_state *state = to_dm_connector_state(aconnector->base.state); + struct dpcd_caps *dpcd_caps = &link->dpcd_caps; + struct adaptive_sync_caps *as_caps = &link->dpcd_caps.adaptive_sync_caps; + + if (!state->freesync_capable) + return false; + + if (!aconnector->vsdb_info.replay_mode) + return false; + + // Check the eDP version + if (dpcd_caps->edp_rev < EDP_REVISION_13) + return false; + + if (!dpcd_caps->alpm_caps.bits.AUX_WAKE_ALPM_CAP) + return false; + + // Check adaptive sync support cap + if (!as_caps->dp_adap_sync_caps.bits.ADAPTIVE_SYNC_SDP_SUPPORT) + return false; + + return true; +} + +/* + * amdgpu_dm_setup_replay() - setup replay configuration + * @link: link + * @aconnector: aconnector + * + */ +bool amdgpu_dm_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector) +{ + struct replay_config pr_config; + union replay_debug_flags *debug_flags = NULL; + + // For eDP, if Replay is supported, return true to skip checks + if (link->replay_settings.config.replay_supported) + return true; + + if (!dc_is_embedded_signal(link->connector_signal)) + return false; + + if (link->panel_config.psr.disallow_replay) + return false; + + if (!link_supports_replay(link, aconnector)) + return false; + + // Mark Replay is supported in link and update related attributes + pr_config.replay_supported = true; + pr_config.replay_power_opt_supported = 0; + pr_config.replay_enable_option |= pr_enable_option_static_screen; + pr_config.replay_timing_sync_supported = aconnector->max_vfreq >= 2 * aconnector->min_vfreq ? true : false; + + if (!pr_config.replay_timing_sync_supported) + pr_config.replay_enable_option &= ~pr_enable_option_general_ui; + + debug_flags = (union replay_debug_flags *)&pr_config.debug_flags; + debug_flags->u32All = 0; + debug_flags->bitfields.visual_confirm = + link->ctx->dc->debug.visual_confirm == VISUAL_CONFIRM_REPLAY ? true : false; + + link->replay_settings.replay_feature_enabled = true; + + init_replay_config(link, &pr_config); + + return true; +} + + +/* + * amdgpu_dm_replay_enable() - enable replay f/w + * @stream: stream state + * + * Return: true if success + */ +bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool wait) +{ + uint64_t state; + unsigned int retry_count; + bool replay_active = true; + const unsigned int max_retry = 1000; + bool force_static = true; + struct dc_link *link = NULL; + + + if (stream == NULL) + return false; + + link = stream->link; + + if (link == NULL) + return false; + + link->dc->link_srv->edp_setup_replay(link, stream); + + link->dc->link_srv->edp_set_replay_allow_active(link, NULL, false, false, NULL); + + link->dc->link_srv->edp_set_replay_allow_active(link, &replay_active, false, true, NULL); + + if (wait == true) { + + for (retry_count = 0; retry_count <= max_retry; retry_count++) { + dc_link_get_replay_state(link, &state); + if (replay_active) { + if (state != REPLAY_STATE_0 && + (!force_static || state == REPLAY_STATE_3)) + break; + } else { + if (state == REPLAY_STATE_0) + break; + } + udelay(500); + } + + /* assert if max retry hit */ + if (retry_count >= max_retry) + ASSERT(0); + } else { + /* To-do: Add trace log */ + } + + return true; +} + +/* + * amdgpu_dm_replay_disable() - disable replay f/w + * @stream: stream state + * + * Return: true if success + */ +bool amdgpu_dm_replay_disable(struct dc_stream_state *stream) +{ + + if (stream->link) { + DRM_DEBUG_DRIVER("Disabling replay...\n"); + stream->link->dc->link_srv->edp_set_replay_allow_active(stream->link, NULL, false, false, NULL); + return true; + } + + return false; +} |