Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The usual lots of work all over the place.

  i915 has gotten some Alderlake work and prelim DG1 code, along with a
  major locking rework over the GEM code, and brings back the property
  of timing out long running jobs using a watchdog. amdgpu has some
  Alderbran support (new GPU), freesync HDMI support along with a lot
  other fixes.

  Outside of the drm, there is a new printf specifier added which should
  have all the correct acks/sobs:

   - printk fourcc modifier support added %p4cc

  Summary:

  core:
   - drm_crtc_commit_wait
   - atomic plane state helpers reworked for full state
   - dma-buf heaps API rework
   - edid: rework and improvements for displayid

  dp-mst:
   - better topology logging

  bridge:
   - Chipone ICN6211
   - Lontium LT8912B
   - anx7625 regulator support

  panel:
   - fix lt9611 4k panels handling

  simple-kms:
   - add plane state helpers

  ttm:
   - debugfs support
   - removal of unused sysfs
   - ignore signaled moved fences
   - ioremap buffer according to mem caching

  i915:
   - Alderlake S enablement
   - Conversion to dma_resv_locking
   - Bring back watchdog timeout support
   - legacy ioctl cleanups
   - add GEM TDDO and RFC process
   - DG1 LMEM preparation work
   - intel_display.c refactoring
   - Gen9/TGL PCH combination support
   - eDP MSO Support
   - multiple PSR instance support
   - Link training debug updates
   - Disable PSR2 support on JSL/EHL
   - DDR5/LPDDR5 support for bw calcs
   - LSPCON limited to gen9/10 platforms
   - HSW/BDW async flip/VTd corruption workaround
   - SAGV watermark fixes
   - SNB hard hang on ring resume fix
   - Limit imported dma-buf size
   - move to use new tasklet API
   - refactor KBL/TGL/ADL-S display/gt steppings
   - refactoring legacy DP/HDMI, FB plane code out

  amdgpu:
   - uapi: add ioctl to query video capabilities
   - Iniital AMD Freesync HDMI support
   - Initial Adebaran support
   - 10bpc dithering improvements
   - DCN secure display support
   - Drop legacy IO BAR requirements
   - PCIE/S0ix/RAS/Prime/Reset fixes
   - Display ASSR support
   - SMU gfx busy queues for RV/PCO
   - Initial LTTPR display work

  amdkfd:
   - MMU notifier fixes
   - APU fixes

  radeon:
   - debugfs cleanps
   - fw error handling ifix
   - Flexible array cleanups

  msm:
   - big DSI phy/pll cleanup
   - sc7280 initial support
   - commong bandwidth scaling path
   - shrinker locking contention fixes
   - unpin/swap support for GEM objcets

  ast:
   - cursor plane handling reworked

  tegra:
   - don't register DP AUX channels before connectors

  zynqmp:
   - fix OOB struct padding memset

  gma500:
   - drop ttm and medfield support

  exynos:
   - request_irq cleanup function

  mediatek:
   - fine tune line time for EOTp
   - MT8192 dpi support
   - atomic crtc config updates
   - don't support HDMI connector creation

  mxsdb:
   - imx8mm support

  panfrost:
   - MMU IRQ handling rework

  qxl:
   - locking fixes
   - resource deallocation changes

  sun4i:
   - add alpha properties to UI/VI layers

  vc4:
   - RPi4 CEC support

  vmwgfx:
   - doc cleanups

  arc:
   - moved to drm/tiny"

* tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits)
  drm/ttm: Don't count pages in SG BOs against pages_limit
  drm/ttm: fix return value check
  drm/bridge: lt8912b: fix incorrect handling of of_* return values
  drm: bridge: fix LONTIUM use of mipi_dsi_() functions
  drm: bridge: fix ANX7625 use of mipi_dsi_() functions
  drm/amdgpu: page retire over debugfs mechanism
  drm/radeon: Fix a missing check bug in radeon_dp_mst_detect()
  drm/amd/display: Fix the Wunused-function warning
  drm/radeon/r600: Fix variables that are not used after assignment
  drm/amdgpu/smu7: fix CAC setting on TOPAZ
  drm/amd/display: Update DCN302 SR Exit Latency
  drm/amdgpu: enable ras eeprom on aldebaran
  drm/amdgpu: RAS harvest on driver load
  drm/amdgpu: add ras aldebaran ras eeprom driver
  drm/amd/pm: increase time out value when sending msg to SMU
  drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag
  drm/amd/pm: add the callback to get vbios bootup values for vangogh
  drm/radeon: Fix size overflow
  drm/amdgpu: Fix size overflow
  drm/amdgpu: move mmhub ras_func init to ip specific file
  ...

1 files changed, 164 insertions, 29 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index c1391bfb7a9b..7d2e433c2275 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -284,7 +284,7 @@ static uint8_t dc_dp_initialize_scrambling_data_symbols(
 
 static inline bool is_repeater(struct dc_link *link, uint32_t offset)
 {
-	return (link->lttpr_non_transparent_mode && offset != 0);
+	return (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) && (offset != 0);
 }
 
 static void dpcd_set_lt_pattern_and_lane_settings(
@@ -1072,7 +1072,7 @@ static enum link_training_result perform_clock_recovery_sequence(
 		/* 3. wait receiver to lock-on*/
 		wait_time_microsec = lt_settings->cr_pattern_time;
 
-		if (link->lttpr_non_transparent_mode)
+		if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
 			wait_time_microsec = TRAINING_AUX_RD_INTERVAL;
 
 		wait_for_training_aux_rd_interval(
@@ -1098,11 +1098,13 @@ static enum link_training_result perform_clock_recovery_sequence(
 		if (is_max_vs_reached(lt_settings))
 			break;
 
-		/* 7. same voltage*/
-		/* Note: VS same for all lanes,
-		* so comparing first lane is sufficient*/
-		if (lt_settings->lane_settings[0].VOLTAGE_SWING ==
+		/* 7. same lane settings*/
+		/* Note: settings are the same for all lanes,
+		 * so comparing first lane is sufficient*/
+		if ((lt_settings->lane_settings[0].VOLTAGE_SWING ==
 			req_settings.lane_settings[0].VOLTAGE_SWING)
+			&& (lt_settings->lane_settings[0].PRE_EMPHASIS ==
+				req_settings.lane_settings[0].PRE_EMPHASIS))
 			retries_cr++;
 		else
 			retries_cr = 0;
@@ -1324,7 +1326,17 @@ static uint8_t convert_to_count(uint8_t lttpr_repeater_count)
 	return 0; // invalid value
 }
 
-static void configure_lttpr_mode(struct dc_link *link)
+static void configure_lttpr_mode_transparent(struct dc_link *link)
+{
+	uint8_t repeater_mode = DP_PHY_REPEATER_MODE_TRANSPARENT;
+
+	core_link_write_dpcd(link,
+			DP_PHY_REPEATER_MODE,
+			(uint8_t *)&repeater_mode,
+			sizeof(repeater_mode));
+}
+
+static void configure_lttpr_mode_non_transparent(struct dc_link *link)
 {
 	/* aux timeout is already set to extended */
 	/* RESET/SET lttpr mode to enable non transparent mode */
@@ -1344,7 +1356,7 @@ static void configure_lttpr_mode(struct dc_link *link)
 		link->dpcd_caps.lttpr_caps.mode = repeater_mode;
 	}
 
-	if (link->lttpr_non_transparent_mode) {
+	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) {
 
 		DC_LOG_HW_LINK_TRAINING("%s\n Set LTTPR to Non Transparent Mode\n", __func__);
 
@@ -1560,8 +1572,10 @@ enum link_training_result dc_link_dp_perform_link_training(
 			&lt_settings);
 
 	/* Configure lttpr mode */
-	if (link->lttpr_non_transparent_mode)
-		configure_lttpr_mode(link);
+	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
+		configure_lttpr_mode_non_transparent(link);
+	else if (link->lttpr_mode == LTTPR_MODE_TRANSPARENT)
+		configure_lttpr_mode_transparent(link);
 
 	if (link->ctx->dc->work_arounds.lt_early_cr_pattern)
 		start_clock_recovery_pattern_early(link, &lt_settings, DPRX);
@@ -1576,7 +1590,7 @@ enum link_training_result dc_link_dp_perform_link_training(
 
 	dp_set_fec_ready(link, fec_enable);
 
-	if (link->lttpr_non_transparent_mode) {
+	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) {
 
 		/* 2. perform link training (set link training done
 		 *  to false is done as well)
@@ -1633,6 +1647,42 @@ enum link_training_result dc_link_dp_perform_link_training(
 	return status;
 }
 
+static enum dp_panel_mode try_enable_assr(struct dc_stream_state *stream)
+{
+	struct dc_link *link = stream->link;
+	enum dp_panel_mode panel_mode = dp_get_panel_mode(link);
+#ifdef CONFIG_DRM_AMD_DC_HDCP
+	struct cp_psp *cp_psp = &stream->ctx->cp_psp;
+#endif
+
+	/* ASSR must be supported on the panel */
+	if (panel_mode == DP_PANEL_MODE_DEFAULT)
+		return panel_mode;
+
+	/* eDP or internal DP only */
+	if (link->connector_signal != SIGNAL_TYPE_EDP &&
+		!(link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT &&
+		 link->is_internal_display))
+		return DP_PANEL_MODE_DEFAULT;
+
+#ifdef CONFIG_DRM_AMD_DC_HDCP
+	if (cp_psp && cp_psp->funcs.enable_assr) {
+		if (!cp_psp->funcs.enable_assr(cp_psp->handle, link)) {
+			/* since eDP implies ASSR on, change panel
+			 * mode to disable ASSR
+			 */
+			panel_mode = DP_PANEL_MODE_DEFAULT;
+		}
+	} else
+		panel_mode = DP_PANEL_MODE_DEFAULT;
+
+#else
+	/* turn off ASSR if the implementation is not compiled in */
+	panel_mode = DP_PANEL_MODE_DEFAULT;
+#endif
+	return panel_mode;
+}
+
 bool perform_link_training_with_retries(
 	const struct dc_link_settings *link_setting,
 	bool skip_video_pattern,
@@ -1644,7 +1694,7 @@ bool perform_link_training_with_retries(
 	uint8_t delay_between_attempts = LINK_TRAINING_RETRY_DELAY;
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	struct dc_link *link = stream->link;
-	enum dp_panel_mode panel_mode = dp_get_panel_mode(link);
+	enum dp_panel_mode panel_mode;
 
 	/* We need to do this before the link training to ensure the idle pattern in SST
 	 * mode will be sent right after the link training
@@ -1669,16 +1719,25 @@ bool perform_link_training_with_retries(
 			msleep(delay_dp_power_up_in_ms);
 		}
 
+		panel_mode = try_enable_assr(stream);
 		dp_set_panel_mode(link, panel_mode);
+		DC_LOG_DETECTION_DP_CAPS("Link: %d ASSR enabled: %d\n",
+			 link->link_index,
+			 panel_mode != DP_PANEL_MODE_DEFAULT);
 
 		if (link->aux_access_disabled) {
 			dc_link_dp_perform_link_training_skip_aux(link, link_setting);
 			return true;
-		} else if (dc_link_dp_perform_link_training(
-				link,
-				link_setting,
-				skip_video_pattern) == LINK_TRAINING_SUCCESS)
-			return true;
+		} else {
+			enum link_training_result status = LINK_TRAINING_CR_FAIL_LANE0;
+
+				status = dc_link_dp_perform_link_training(
+										link,
+										link_setting,
+										skip_video_pattern);
+			if (status == LINK_TRAINING_SUCCESS)
+				return true;
+		}
 
 		/* latest link training still fail, skip delay and keep PHY on
 		 */
@@ -1857,7 +1916,7 @@ static struct dc_link_settings get_max_link_cap(struct dc_link *link)
 	 * account for lttpr repeaters cap
 	 * notes: repeaters do not snoop in the DPRX Capabilities addresses (3.6.3).
 	 */
-	if (link->lttpr_non_transparent_mode) {
+	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) {
 		if (link->dpcd_caps.lttpr_caps.max_lane_count < max_link_cap.lane_count)
 			max_link_cap.lane_count = link->dpcd_caps.lttpr_caps.max_lane_count;
 
@@ -2015,7 +2074,7 @@ bool dp_verify_link_cap(
 	max_link_cap = get_max_link_cap(link);
 
 	/* Grant extended timeout request */
-	if (link->lttpr_non_transparent_mode && link->dpcd_caps.lttpr_caps.max_ext_timeout > 0) {
+	if ((link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT) && (link->dpcd_caps.lttpr_caps.max_ext_timeout > 0)) {
 		uint8_t grant = link->dpcd_caps.lttpr_caps.max_ext_timeout & 0x80;
 
 		core_link_write_dpcd(link, DP_PHY_REPEATER_EXTENDED_WAIT_TIMEOUT, &grant, sizeof(grant));
@@ -2766,10 +2825,27 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
 	enum dp_test_pattern test_pattern;
 	enum dp_test_pattern_color_space test_pattern_color_space =
 			DP_TEST_PATTERN_COLOR_SPACE_UNDEFINED;
+	enum dc_color_depth requestColorDepth = COLOR_DEPTH_UNDEFINED;
+	struct pipe_ctx *pipes = link->dc->current_state->res_ctx.pipe_ctx;
+	struct pipe_ctx *pipe_ctx = NULL;
+	int i;
 
 	memset(&dpcd_test_pattern, 0, sizeof(dpcd_test_pattern));
 	memset(&dpcd_test_params, 0, sizeof(dpcd_test_params));
 
+	for (i = 0; i < MAX_PIPES; i++) {
+		if (pipes[i].stream == NULL)
+			continue;
+
+		if (pipes[i].stream->link == link && !pipes[i].top_pipe && !pipes[i].prev_odm_pipe) {
+			pipe_ctx = &pipes[i];
+			break;
+		}
+	}
+
+	if (pipe_ctx == NULL)
+		return;
+
 	/* get link test pattern and pattern parameters */
 	core_link_read_dpcd(
 			link,
@@ -2807,6 +2883,33 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
 				DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
 				DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
 
+	switch (dpcd_test_params.bits.BPC) {
+	case 0: // 6 bits
+		requestColorDepth = COLOR_DEPTH_666;
+		break;
+	case 1: // 8 bits
+		requestColorDepth = COLOR_DEPTH_888;
+		break;
+	case 2: // 10 bits
+		requestColorDepth = COLOR_DEPTH_101010;
+		break;
+	case 3: // 12 bits
+		requestColorDepth = COLOR_DEPTH_121212;
+		break;
+	default:
+		break;
+	}
+
+	if (requestColorDepth != COLOR_DEPTH_UNDEFINED
+			&& pipe_ctx->stream->timing.display_color_depth != requestColorDepth) {
+		DC_LOG_DEBUG("%s: original bpc %d, changing to %d\n",
+				__func__,
+				pipe_ctx->stream->timing.display_color_depth,
+				requestColorDepth);
+		pipe_ctx->stream->timing.display_color_depth = requestColorDepth;
+		dp_update_dsc_config(pipe_ctx);
+	}
+
 	dc_link_dp_set_test_pattern(
 			link,
 			test_pattern,
@@ -3353,6 +3456,9 @@ static bool retrieve_link_cap(struct dc_link *link)
 	struct dp_sink_hw_fw_revision dp_hw_fw_revision;
 	bool is_lttpr_present = false;
 	const uint32_t post_oui_delay = 30; // 30ms
+	bool vbios_lttpr_enable = false;
+	bool vbios_lttpr_interop = false;
+	struct dc_bios *bios = link->dc->ctx->dc_bios;
 
 	memset(dpcd_data, '\0', sizeof(dpcd_data));
 	memset(lttpr_dpcd_data, '\0', sizeof(lttpr_dpcd_data));
@@ -3400,13 +3506,45 @@ static bool retrieve_link_cap(struct dc_link *link)
 		return false;
 	}
 
-	if (link->dc->caps.extended_aux_timeout_support &&
-			link->dc->config.allow_lttpr_non_transparent_mode) {
+	/* Query BIOS to determine if LTTPR functionality is forced on by system */
+	if (bios->funcs->get_lttpr_caps) {
+		enum bp_result bp_query_result;
+		uint8_t is_vbios_lttpr_enable = 0;
+
+		bp_query_result = bios->funcs->get_lttpr_caps(bios, &is_vbios_lttpr_enable);
+		vbios_lttpr_enable = (bp_query_result == BP_RESULT_OK) && !!is_vbios_lttpr_enable;
+	}
+
+	if (bios->funcs->get_lttpr_interop) {
+		enum bp_result bp_query_result;
+		uint8_t is_vbios_interop_enabled = 0;
+
+		bp_query_result = bios->funcs->get_lttpr_interop(bios, &is_vbios_interop_enabled);
+		vbios_lttpr_interop = (bp_query_result == BP_RESULT_OK) && !!is_vbios_interop_enabled;
+	}
+
+	/*
+	 * Logic to determine LTTPR mode
+	 */
+	link->lttpr_mode = LTTPR_MODE_NON_LTTPR;
+	if (vbios_lttpr_enable && vbios_lttpr_interop)
+		link->lttpr_mode = LTTPR_MODE_NON_TRANSPARENT;
+	else if (!vbios_lttpr_enable && vbios_lttpr_interop) {
+		if (link->dc->config.allow_lttpr_non_transparent_mode)
+			link->lttpr_mode = LTTPR_MODE_NON_TRANSPARENT;
+		else
+			link->lttpr_mode = LTTPR_MODE_TRANSPARENT;
+	} else if (!vbios_lttpr_enable && !vbios_lttpr_interop) {
+		if (!link->dc->config.allow_lttpr_non_transparent_mode
+			|| !link->dc->caps.extended_aux_timeout_support)
+			link->lttpr_mode = LTTPR_MODE_NON_LTTPR;
+		else
+			link->lttpr_mode = LTTPR_MODE_NON_TRANSPARENT;
+	}
+
+	if (link->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT || link->lttpr_mode == LTTPR_MODE_TRANSPARENT) {
 		/* By reading LTTPR capability, RX assumes that we will enable
-		 * LTTPR non transparent if LTTPR is present.
-		 * Therefore, only query LTTPR capability when both LTTPR
-		 * extended aux timeout and
-		 * non transparent mode is supported by hardware
+		 * LTTPR extended aux timeout if LTTPR is present.
 		 */
 		status = core_link_read_dpcd(
 				link,
@@ -3446,9 +3584,6 @@ static bool retrieve_link_cap(struct dc_link *link)
 			CONN_DATA_DETECT(link, lttpr_dpcd_data, sizeof(lttpr_dpcd_data), "LTTPR Caps: ");
 	}
 
-	/* decide lttpr non transparent mode */
-	link->lttpr_non_transparent_mode = is_lttpr_present;
-
 	if (!is_lttpr_present)
 		dc_link_aux_try_to_configure_timeout(link->ddc, LINK_AUX_DEFAULT_TIMEOUT_PERIOD);
 
@@ -4265,7 +4400,7 @@ void dp_set_panel_mode(struct dc_link *link, enum dp_panel_mode panel_mode)
 
 		if (edp_config_set.bits.PANEL_MODE_EDP
 			!= panel_mode_edp) {
-			enum dc_status result = DC_ERROR_UNEXPECTED;
+			enum dc_status result;
 
 			edp_config_set.bits.PANEL_MODE_EDP =
 			panel_mode_edp;