Merge tag 'drm-next-2025-01-17' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "There are two external interactions of note, the msm tree pull in some
  opp tree, hopefully the opp tree arrives from the same git tree
  however it normally does.

  There is also a new cgroup controller for device memory, that is used
  by drm, so is merging through my tree. This will hopefully help open
  up gpu cgroup usage a bit more and move us forward.

  There is a new accelerator driver for the AMD XDNA Ryzen AI NPUs.

  Then the usual xe/amdgpu/i915/msm leaders and lots of changes and
  refactors across the board:

  core:
   - device memory cgroup controller added
   - Remove driver date from drm_driver
   - Add drm_printer based hex dumper
   - drm memory stats docs update
   - scheduler documentation improvements

  new driver:
   - amdxdna - Ryzen AI NPU support

  connector:
   - add a mutex to protect ELD
   - make connector setup two-step

  panels:
   - Introduce backlight quirks infrastructure
   - New panels: KDB KD116N2130B12, Tianma TM070JDHG34-00,
   - Multi-Inno Technology MI1010Z1T-1CP11

  bridge:
   - ti-sn65dsi83: Add ti,lvds-vod-swing optional properties
   - Provide default implementation of atomic_check for HDMI bridges
   - it605: HDCP improvements, MCCS Support

  xe:
   - make OA buffer size configurable
   - GuC capture fixes
   - add ufence and g2h flushes
   - restore system memory GGTT mappings
   - ioctl fixes
   - SRIOV PF scheduling priority
   - allow fault injection
   - lots of improvements/refactors
   - Enable GuC's WA_DUAL_QUEUE for newer platforms
   - IRQ related fixes and improvements

  i915:
   - More accurate engine busyness metrics with GuC submission
   - Ensure partial BO segment offset never exceeds allowed max
   - Flush GuC CT receive tasklet during reset preparation
   - Some DG2 refactor to fix DG2 bugs when operating with certain CPUs
   - Fix DG1 power gate sequence
   - Enabling uncompressed 128b/132b UHBR SST
   - Handle hdmi connector init failures, and no HDMI/DP cases
   - More robust engine resets on Haswell and older

  i915/xe display:
   - HDCP fixes for Xe3Lpd
   - New GSC FW ARL-H/ARL-U
   - support 3 VDSC engines 12 slices
   - MBUS joining sanitisation
   - reconcile i915/xe display power mgmt
   - Xe3Lpd fixes
   - UHBR rates for Thunderbolt

  amdgpu:
   - DRM panic support
   - track BO memory stats at runtime
   - Fix max surface handling in DC
   - Cleaner shader support for gfx10.3 dGPUs
   - fix drm buddy trim handling
   - SDMA engine reset updates
   - Fix doorbell ttm cleanup
   - RAS updates
   - ISP updates
   - SDMA queue reset support
   - Rework DPM powergating interfaces
   - Documentation updates and cleanups
   - DCN 3.5 updates
   - Use a pm notifier to more gracefully handle VRAM eviction on
     suspend or hibernate
   - Add debugfs interfaces for forcing scheduling to specific engine
     instances
   - GG 9.5 updates
   - IH 4.4 updates
   - Make missing optional firmware less noisy
   - PSP 13.x updates
   - SMU 13.x updates
   - VCN 5.x updates
   - JPEG 5.x updates
   - GC 12.x updates
   - DC FAMS updates

  amdkfd:
   - GG 9.5 updates
   - Logging improvements
   - Shader debugger fixes
   - Trap handler cleanup
   - Cleanup includes
   - Eviction fence wq fix

  msm:
   - MDSS:
      - properly described UBWC registers
      - added SM6150 (aka QCS615) support
   - DPU:
      - added SM6150 (aka QCS615) support
      - enabled wide planes if virtual planes are enabled (by using two
        SSPPs for a single plane)
      - added CWB hardware blocks support
   - DSI:
      - added SM6150 (aka QCS615) support
   - GPU:
      - Print GMU core fw version
      - GMU bandwidth voting for a740 and a750
      - Expose uche trap base via uapi
      - UAPI error reporting

  rcar-du:
   - Add r8a779h0 Support

  ivpu:
   - Fix qemu crash when using passthrough

  nouveau:
   - expose GSP-RM logging buffers via debugfs

  panfrost:
   - Add MT8188 Mali-G57 MC3 support

  rockchip:
   - Gamma LUT support

  hisilicon:
   - new HIBMC support

  virtio-gpu:
   - convert to helpers
   - add prime support for scanout buffers

  v3d:
   - Add DRM_IOCTL_V3D_PERFMON_SET_GLOBAL

  vc4:
   - Add support for BCM2712

  vkms:
   - line-per-line compositing algorithm to improve performance

  zynqmp:
   - Add DP audio support

  mediatek:
   - dp: Add sdp path reset
   - dp: Support flexible length of DP calibration data

  etnaviv:
   - add fdinfo memory support
   - add explicit reset handling"

* tag 'drm-next-2025-01-17' of https://gitlab.freedesktop.org/drm/kernel: (1070 commits)
  drm/bridge: fix documentation for the hdmi_audio_prepare() callback
  doc/cgroup: Fix title underline length
  drm/doc: Include new drm-compute documentation
  cgroup/dmem: Fix parameters documentation
  cgroup/dmem: Select PAGE_COUNTER
  kernel/cgroup: Remove the unused variable climit
  drm/display: hdmi: Do not read EDID on disconnected connectors
  drm/tests: hdmi: Add connector disablement test
  drm/connector: hdmi: Do atomic check when necessary
  drm/amd/display: 3.2.316
  drm/amd/display: avoid reset DTBCLK at clock init
  drm/amd/display: improve dpia pre-train
  drm/amd/display: Apply DML21 Patches
  drm/amd/display: Use HW lock mgr for PSR1
  drm/amd/display: Revised for Replay Pseudo vblank control
  drm/amd/display: Add a new flag for replay low hz
  drm/amd/display: Remove unused read_ono_state function from Hwss module
  drm/amd/display: Do not elevate mem_type change to full update
  drm/amd/display: Do not wait for PSR disable on vbl enable
  drm/amd/display: Remove unnecessary eDP power down
  ...

1 files changed, 179 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
index 60f15a9ba7a5..29606fda029d 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c
@@ -409,3 +409,182 @@ bool link_validate_dpia_bandwidth(const struct dc_stream_state *stream, const un
 
 	return dpia_validate_usb4_bw(dpia_link, bw_needed, num_dpias);
 }
+
+struct dp_audio_layout_config {
+	uint8_t layouts_per_sample_denom;
+	uint8_t symbols_per_layout;
+	uint8_t max_layouts_per_audio_sdp;
+};
+
+static void get_audio_layout_config(
+	uint32_t channel_count,
+	enum dp_link_encoding encoding,
+	struct dp_audio_layout_config *output)
+{
+	memset(output, 0, sizeof(struct dp_audio_layout_config));
+
+	/* Assuming L-PCM audio. Current implementation uses max 1 layout per SDP,
+	 * with each layout being the same size (8ch layout).
+	 */
+	if (encoding == DP_8b_10b_ENCODING) {
+		if (channel_count == 2) {
+			output->layouts_per_sample_denom = 4;
+			output->symbols_per_layout = 40;
+			output->max_layouts_per_audio_sdp = 1;
+		} else if (channel_count == 8 || channel_count == 6) {
+			output->layouts_per_sample_denom = 1;
+			output->symbols_per_layout = 40;
+			output->max_layouts_per_audio_sdp = 1;
+		}
+	} else if (encoding == DP_128b_132b_ENCODING) {
+		if (channel_count == 2) {
+			output->layouts_per_sample_denom = 4;
+			output->symbols_per_layout = 10;
+			output->max_layouts_per_audio_sdp = 1;
+		} else if (channel_count == 8 || channel_count == 6) {
+			output->layouts_per_sample_denom = 1;
+			output->symbols_per_layout = 10;
+			output->max_layouts_per_audio_sdp = 1;
+		}
+	}
+}
+
+static uint32_t get_av_stream_map_lane_count(
+	enum dp_link_encoding encoding,
+	enum dc_lane_count lane_count,
+	bool is_mst)
+{
+	uint32_t av_stream_map_lane_count = 0;
+
+	if (encoding == DP_8b_10b_ENCODING) {
+		if (!is_mst)
+			av_stream_map_lane_count = lane_count;
+		else
+			av_stream_map_lane_count = 4;
+	} else if (encoding == DP_128b_132b_ENCODING) {
+		av_stream_map_lane_count = 4;
+	}
+
+	ASSERT(av_stream_map_lane_count != 0);
+
+	return av_stream_map_lane_count;
+}
+
+static uint32_t get_audio_sdp_overhead(
+	enum dp_link_encoding encoding,
+	enum dc_lane_count lane_count,
+	bool is_mst)
+{
+	uint32_t audio_sdp_overhead = 0;
+
+	if (encoding == DP_8b_10b_ENCODING) {
+		if (is_mst)
+			audio_sdp_overhead = 16; /* 4 * 2 + 8 */
+		else
+			audio_sdp_overhead = lane_count * 2 + 8;
+	} else if (encoding == DP_128b_132b_ENCODING) {
+		audio_sdp_overhead = 10; /* 4 x 2.5 */
+	}
+
+	ASSERT(audio_sdp_overhead != 0);
+
+	return audio_sdp_overhead;
+}
+
+/* Current calculation only applicable for 8b/10b MST and 128b/132b SST/MST.
+ */
+static uint32_t calculate_overhead_hblank_bw_in_symbols(
+	uint32_t max_slice_h)
+{
+	uint32_t overhead_hblank_bw = 0; /* in stream symbols */
+
+	overhead_hblank_bw += max_slice_h * 4; /* EOC overhead */
+	overhead_hblank_bw += 12; /* Main link overhead (VBID, BS/BE) */
+
+	return overhead_hblank_bw;
+}
+
+uint32_t dp_required_hblank_size_bytes(
+	const struct dc_link *link,
+	struct dp_audio_bandwidth_params *audio_params)
+{
+	/* Main logic from dce_audio is duplicated here, with the main
+	 * difference being:
+	 * - Pre-determined lane count of 4
+	 * - Assumed 16 dsc slices for worst case
+	 * - Assumed SDP split disabled for worst case
+	 * TODO: Unify logic from dce_audio to prevent duplicated logic.
+	 */
+
+	const struct dc_crtc_timing *timing = audio_params->crtc_timing;
+	const uint32_t channel_count = audio_params->channel_count;
+	const uint32_t sample_rate_hz = audio_params->sample_rate_hz;
+	const enum dp_link_encoding link_encoding = audio_params->link_encoding;
+
+	// 8b/10b MST and 128b/132b are always 4 logical lanes.
+	const uint32_t lane_count = 4;
+	const bool is_mst = (link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT);
+	// Maximum slice count is with ODM 4:1, 4 slices per DSC
+	const uint32_t max_slices_h = 16;
+
+	const uint32_t av_stream_map_lane_count = get_av_stream_map_lane_count(
+			link_encoding, lane_count, is_mst);
+	const uint32_t audio_sdp_overhead = get_audio_sdp_overhead(
+			link_encoding, lane_count, is_mst);
+	struct dp_audio_layout_config layout_config;
+
+	if (link_encoding == DP_8b_10b_ENCODING && link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT)
+		return 0;
+
+	get_audio_layout_config(
+			channel_count, link_encoding, &layout_config);
+
+	/* DP spec recommends between 1.05 to 1.1 safety margin to prevent sample under-run */
+	struct fixed31_32 audio_sdp_margin = dc_fixpt_from_fraction(110, 100);
+	struct fixed31_32 horizontal_line_freq_khz = dc_fixpt_from_fraction(
+			timing->pix_clk_100hz, (long long)timing->h_total * 10);
+	struct fixed31_32 samples_per_line;
+	struct fixed31_32 layouts_per_line;
+	struct fixed31_32 symbols_per_sdp_max_layout;
+	struct fixed31_32 remainder;
+	uint32_t num_sdp_with_max_layouts;
+	uint32_t required_symbols_per_hblank;
+	uint32_t required_bytes_per_hblank = 0;
+
+	samples_per_line = dc_fixpt_from_fraction(sample_rate_hz, 1000);
+	samples_per_line = dc_fixpt_div(samples_per_line, horizontal_line_freq_khz);
+	layouts_per_line = dc_fixpt_div_int(samples_per_line, layout_config.layouts_per_sample_denom);
+	// HBlank expansion usage assumes SDP split disabled to allow for worst case.
+	layouts_per_line = dc_fixpt_from_int(dc_fixpt_ceil(layouts_per_line));
+
+	num_sdp_with_max_layouts = dc_fixpt_floor(
+			dc_fixpt_div_int(layouts_per_line, layout_config.max_layouts_per_audio_sdp));
+	symbols_per_sdp_max_layout = dc_fixpt_from_int(
+			layout_config.max_layouts_per_audio_sdp * layout_config.symbols_per_layout);
+	symbols_per_sdp_max_layout = dc_fixpt_add_int(symbols_per_sdp_max_layout, audio_sdp_overhead);
+	symbols_per_sdp_max_layout = dc_fixpt_mul(symbols_per_sdp_max_layout, audio_sdp_margin);
+	required_symbols_per_hblank = num_sdp_with_max_layouts;
+	required_symbols_per_hblank *= ((dc_fixpt_ceil(symbols_per_sdp_max_layout) + av_stream_map_lane_count) /
+			av_stream_map_lane_count) *	av_stream_map_lane_count;
+
+	if (num_sdp_with_max_layouts !=	dc_fixpt_ceil(
+			dc_fixpt_div_int(layouts_per_line, layout_config.max_layouts_per_audio_sdp))) {
+		remainder = dc_fixpt_sub_int(layouts_per_line,
+				num_sdp_with_max_layouts * layout_config.max_layouts_per_audio_sdp);
+		remainder = dc_fixpt_mul_int(remainder, layout_config.symbols_per_layout);
+		remainder = dc_fixpt_add_int(remainder, audio_sdp_overhead);
+		remainder = dc_fixpt_mul(remainder, audio_sdp_margin);
+		required_symbols_per_hblank += ((dc_fixpt_ceil(remainder) + av_stream_map_lane_count) /
+				av_stream_map_lane_count) * av_stream_map_lane_count;
+	}
+
+	required_symbols_per_hblank += calculate_overhead_hblank_bw_in_symbols(max_slices_h);
+
+	if (link_encoding == DP_8b_10b_ENCODING)
+		required_bytes_per_hblank = required_symbols_per_hblank; // 8 bits per 8b/10b symbol
+	else if (link_encoding == DP_128b_132b_ENCODING)
+		required_bytes_per_hblank = required_symbols_per_hblank * 4; // 32 bits per 128b/132b symbol
+
+	return required_bytes_per_hblank;
+}
+