drm/amdgpu/display: Add dml support for DCN

Display mode lib handles clock, watermark, and bandwidth
calculations for DCN.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 147 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c
new file mode 100644
index 000000000000..c02c5522613b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright 2017 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 "display_mode_lib.h"
+
+static void set_soc_bounding_box(struct _vcs_dpi_soc_bounding_box_st *soc, enum dml_project project)
+{
+	if (project == DML_PROJECT_RAVEN1) {
+		soc->sr_exit_time_us = 9.0;
+		soc->sr_enter_plus_exit_time_us = 11.0;
+		soc->urgent_latency_us = 4.0;
+		soc->writeback_latency_us = 12.0;
+		soc->ideal_dram_bw_after_urgent_percent = 80.0;
+		soc->max_request_size_bytes = 256;
+
+		soc->vmin.dcfclk_mhz = 300.0;
+		soc->vmin.dispclk_mhz = 608.0;
+		soc->vmin.dppclk_mhz = 435.0;
+		soc->vmin.dram_bw_per_chan_gbps = 12.8;
+		soc->vmin.phyclk_mhz = 540.0;
+		soc->vmin.socclk_mhz = 208.0;
+
+		soc->vmid.dcfclk_mhz = 600.0;
+		soc->vmid.dispclk_mhz = 661.0;
+		soc->vmid.dppclk_mhz = 661.0;
+		soc->vmid.dram_bw_per_chan_gbps = 12.8;
+		soc->vmid.phyclk_mhz = 540.0;
+		soc->vmid.socclk_mhz = 208.0;
+
+		soc->vnom.dcfclk_mhz = 600.0;
+		soc->vnom.dispclk_mhz = 661.0;
+		soc->vnom.dppclk_mhz = 661.0;
+		soc->vnom.dram_bw_per_chan_gbps = 38.4;
+		soc->vnom.phyclk_mhz = 810;
+		soc->vnom.socclk_mhz = 208.0;
+
+		soc->vmax.dcfclk_mhz = 600.0;
+		soc->vmax.dispclk_mhz = 1086.0;
+		soc->vmax.dppclk_mhz = 661.0;
+		soc->vmax.dram_bw_per_chan_gbps = 38.4;
+		soc->vmax.phyclk_mhz = 810.0;
+		soc->vmax.socclk_mhz = 208.0;
+
+		soc->downspread_percent = 0.5;
+		soc->dram_page_open_time_ns = 50.0;
+		soc->dram_rw_turnaround_time_ns = 17.5;
+		soc->dram_return_buffer_per_channel_bytes = 8192;
+		soc->round_trip_ping_latency_dcfclk_cycles = 128;
+		soc->urgent_out_of_order_return_per_channel_bytes = 256;
+		soc->channel_interleave_bytes = 256;
+		soc->num_banks = 8;
+		soc->num_chans = 2;
+		soc->vmm_page_size_bytes = 4096;
+		soc->dram_clock_change_latency_us = 17.0;
+		soc->writeback_dram_clock_change_latency_us = 23.0;
+		soc->return_bus_width_bytes = 64;
+	} else {
+		BREAK_TO_DEBUGGER(); /* Invalid Project Specified */
+	}
+}
+
+static void set_ip_params(struct _vcs_dpi_ip_params_st *ip, enum dml_project project)
+{
+	if (project == DML_PROJECT_RAVEN1) {
+		ip->rob_buffer_size_kbytes = 64;
+		ip->det_buffer_size_kbytes = 164;
+		ip->dpte_buffer_size_in_pte_reqs = 42;
+		ip->dpp_output_buffer_pixels = 2560;
+		ip->opp_output_buffer_lines = 1;
+		ip->pixel_chunk_size_kbytes = 8;
+		ip->pte_enable = 1;
+		ip->pte_chunk_size_kbytes = 2;
+		ip->meta_chunk_size_kbytes = 2;
+		ip->writeback_chunk_size_kbytes = 2;
+		ip->line_buffer_size_bits = 589824;
+		ip->max_line_buffer_lines = 12;
+		ip->IsLineBufferBppFixed = 0;
+		ip->LineBufferFixedBpp = -1;
+		ip->writeback_luma_buffer_size_kbytes = 12;
+		ip->writeback_chroma_buffer_size_kbytes = 8;
+		ip->max_num_dpp = 4;
+		ip->max_num_wb = 2;
+		ip->max_dchub_pscl_bw_pix_per_clk = 4;
+		ip->max_pscl_lb_bw_pix_per_clk = 2;
+		ip->max_lb_vscl_bw_pix_per_clk = 4;
+		ip->max_vscl_hscl_bw_pix_per_clk = 4;
+		ip->max_hscl_ratio = 4;
+		ip->max_vscl_ratio = 4;
+		ip->hscl_mults = 4;
+		ip->vscl_mults = 4;
+		ip->max_hscl_taps = 8;
+		ip->max_vscl_taps = 8;
+		ip->dispclk_ramp_margin_percent = 1;
+		ip->underscan_factor = 1.10;
+		ip->min_vblank_lines = 14;
+		ip->dppclk_delay_subtotal = 90;
+		ip->dispclk_delay_subtotal = 42;
+		ip->dcfclk_cstate_latency = 10;
+		ip->max_inter_dcn_tile_repeaters = 8;
+		ip->can_vstartup_lines_exceed_vsync_plus_back_porch_lines_minus_one = 0;
+		ip->bug_forcing_LC_req_same_size_fixed = 0;
+	} else {
+		BREAK_TO_DEBUGGER(); /* Invalid Project Specified */
+	}
+}
+
+static void set_mode_evaluation(struct _vcs_dpi_mode_evaluation_st *me, enum dml_project project)
+{
+	if (project == DML_PROJECT_RAVEN1) {
+		me->voltage_override = dm_vmin;
+	} else {
+		BREAK_TO_DEBUGGER(); /* Invalid Project Specified */
+	}
+}
+
+void dml_init_instance(struct display_mode_lib *lib, enum dml_project project)
+{
+	if (lib->project != project) {
+		set_soc_bounding_box(&lib->soc, project);
+		set_ip_params(&lib->ip, project);
+		set_mode_evaluation(&lib->me, project);
+		lib->project = project;
+	}
+}
+