From 0d8a675e3d8b633b996dbb8bd6ac65eb3a3a9564 Mon Sep 17 00:00:00 2001
From: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Date: Fri, 12 May 2023 14:26:10 -0400
Subject: drm/amd/display: Add Freesync Panel DM code
Git-commit: dede1fea4460e734f0ef85875718a036bdd18649
Patch-mainline: v6.6-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
We need certain conditions for replay to be enabled, so create an
interface in DM to enable/disable replay.
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/amd/display/amdgpu_dm/Makefile | 2 +-
.../amd/display/amdgpu_dm/amdgpu_dm_replay.c | 176 ++++++++++++++++++
.../amd/display/amdgpu_dm/amdgpu_dm_replay.h | 46 +++++
.../drm/amd/display/dc/core/dc_link_exports.c | 5 +
drivers/gpu/drm/amd/display/dc/dc.h | 2 +
.../amd/display/modules/power/power_helpers.c | 5 +
.../amd/display/modules/power/power_helpers.h | 2 +
7 files changed, 237 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
index 249b073f6a23..8bf94920d23e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/Makefile
@@ -38,7 +38,7 @@ AMDGPUDM += dc_fpu.o
endif
ifneq ($(CONFIG_DRM_AMD_DC),)
-AMDGPUDM += amdgpu_dm_services.o amdgpu_dm_helpers.o amdgpu_dm_pp_smu.o amdgpu_dm_psr.o
+AMDGPUDM += amdgpu_dm_services.o amdgpu_dm_helpers.o amdgpu_dm_pp_smu.o amdgpu_dm_psr.o amdgpu_dm_replay.o
endif
AMDGPUDM += amdgpu_dm_hdcp.o
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..b3e14997b470
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
@@ -0,0 +1,176 @@
+/*
+ * 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;
+
+ // 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;
+
+ 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;
+}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h
new file mode 100644
index 000000000000..01cba3cd6246
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2021 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
+ *
+ */
+
+#ifndef AMDGPU_DM_AMDGPU_DM_REPLAY_H_
+#define AMDGPU_DM_AMDGPU_DM_REPLAY_H_
+
+#include "amdgpu.h"
+
+enum replay_enable_option {
+ pr_enable_option_static_screen = 0x1,
+ pr_enable_option_mpo_video = 0x2,
+ pr_enable_option_full_screen_video = 0x4,
+ pr_enable_option_general_ui = 0x8,
+ pr_enable_option_static_screen_coasting = 0x10000,
+ pr_enable_option_mpo_video_coasting = 0x20000,
+ pr_enable_option_full_screen_video_coasting = 0x40000,
+};
+
+
+bool amdgpu_dm_replay_enable(struct dc_stream_state *stream, bool enable);
+bool amdgpu_dm_setup_replay(struct dc_link *link, struct amdgpu_dm_connector *aconnector);
+bool amdgpu_dm_replay_disable(struct dc_stream_state *stream);
+
+#endif /* AMDGPU_DM_AMDGPU_DM_REPLAY_H_ */
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c
index 0d19d4cd1916..ed94187c2afa 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c
@@ -467,6 +467,11 @@ bool dc_link_setup_psr(struct dc_link *link,
return link->dc->link_srv->edp_setup_psr(link, stream, psr_config, psr_context);
}
+bool dc_link_get_replay_state(const struct dc_link *link, uint64_t *state)
+{
+ return link->dc->link_srv->edp_get_replay_state(link, state);
+}
+
bool dc_link_wait_for_t12(struct dc_link *link)
{
return link->dc->link_srv->edp_wait_for_t12(link);
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 6878d7676d94..fac358462e40 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -2011,6 +2011,8 @@ bool dc_link_setup_psr(struct dc_link *dc_link,
const struct dc_stream_state *stream, struct psr_config *psr_config,
struct psr_context *psr_context);
+bool dc_link_get_replay_state(const struct dc_link *dc_link, uint64_t *state);
+
/* On eDP links this function call will stall until T12 has elapsed.
* If the panel is not in power off state, this function will return
* immediately.
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index 30349881a283..73a2b37fbbd7 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -926,6 +926,11 @@ void mod_power_calc_psr_configs(struct psr_config *psr_config,
!link->dpcd_caps.psr_info.psr_dpcd_caps.bits.LINK_TRAINING_ON_EXIT_NOT_REQUIRED;
}
+void init_replay_config(struct dc_link *link, struct replay_config *pr_config)
+{
+ link->replay_settings.config = *pr_config;
+}
+
bool mod_power_only_edp(const struct dc_state *context, const struct dc_stream_state *stream)
{
return context && context->stream_count == 1 && dc_is_embedded_signal(stream->signal);
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
index ffc924c9991b..d9e0d67d67f7 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.h
@@ -53,6 +53,8 @@ bool dmub_init_abm_config(struct resource_pool *res_pool,
struct dmcu_iram_parameters params,
unsigned int inst);
+void init_replay_config(struct dc_link *link, struct replay_config *pr_config);
+
bool is_psr_su_specific_panel(struct dc_link *link);
void mod_power_calc_psr_configs(struct psr_config *psr_config,
struct dc_link *link,
--
2.43.0