From: Ken Chalmers <ken.chalmers@amd.com>
Date: Thu, 14 Dec 2017 12:44:39 -0500
Subject: drm/amd/display: Eliminate several Maximus-specific code paths
Git-commit: 6d5d346f0462c1921877b260379115d21f6269c9
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

This allows Maximus emulation to more closely mirror actual silicon
execution.

* Enable pool->base.display_clock creation on Maximus.
* Enable rest of dce110_apply_ctx_to_hw on Maximus.
* Remove apply_ctx_to_hw_fpga (no longer necessary with the full
  dce110_apply_ctx_to_hw enabled).
* Disable the dmcu->funcs->set_psr_wait_loop call in dce112_set_clock
  for Maximus (this was the only fix-up necessary after enabling
  dce110_apply_ctx_to_hw; everything else works unmodified on
  Maximus).

Signed-off-by: Ken Chalmers <ken.chalmers@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c             |   10 ++-
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c |   35 ------------
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c       |   12 +---
 3 files changed, 12 insertions(+), 45 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clocks.c
@@ -34,6 +34,7 @@
 #include "dcn_calcs.h"
 #endif
 #include "core_types.h"
+#include "dc_types.h"
 
 
 #define TO_DCE_CLOCKS(clocks)\
@@ -415,9 +416,12 @@ static int dce112_set_clock(
 
 	bp->funcs->set_dce_clock(bp, &dce_clk_params);
 
-	if (clk_dce->dfs_bypass_disp_clk != actual_clock)
-		dmcu->funcs->set_psr_wait_loop(dmcu,
-				actual_clock / 1000 / 7);
+	if (!IS_FPGA_MAXIMUS_DC(core_dc->ctx->dce_environment)) {
+		if (clk_dce->dfs_bypass_disp_clk != actual_clock)
+			dmcu->funcs->set_psr_wait_loop(dmcu,
+					actual_clock / 1000 / 7);
+	}
+
 	clk_dce->dfs_bypass_disp_clk = actual_clock;
 	return actual_clock;
 }
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1766,36 +1766,6 @@ static void enable_fbc(struct dc *dc,
 }
 #endif
 
-static enum dc_status apply_ctx_to_hw_fpga(
-		struct dc *dc,
-		struct dc_state *context)
-{
-	enum dc_status status = DC_ERROR_UNEXPECTED;
-	int i;
-
-	for (i = 0; i < MAX_PIPES; i++) {
-		struct pipe_ctx *pipe_ctx_old =
-				&dc->current_state->res_ctx.pipe_ctx[i];
-		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-
-		if (pipe_ctx->stream == NULL)
-			continue;
-
-		if (pipe_ctx->stream == pipe_ctx_old->stream)
-			continue;
-
-		status = apply_single_controller_ctx_to_hw(
-				pipe_ctx,
-				context,
-				dc);
-
-		if (status != DC_OK)
-			return status;
-	}
-
-	return DC_OK;
-}
-
 static void dce110_reset_hw_ctx_wrap(
 		struct dc *dc,
 		struct dc_state *context)
@@ -1865,11 +1835,6 @@ enum dc_status dce110_apply_ctx_to_hw(
 	if (context->stream_count <= 0)
 		return DC_OK;
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		apply_ctx_to_hw_fpga(dc, context);
-		return DC_OK;
-	}
-
 	/* Apply new context */
 	dcb->funcs->set_scratch_critical_state(dcb, true);
 
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1316,13 +1316,11 @@ static bool construct(
 		}
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		pool->base.display_clock = dce120_disp_clk_create(ctx);
-		if (pool->base.display_clock == NULL) {
-			dm_error("DC: failed to create display clock!\n");
-			BREAK_TO_DEBUGGER();
-			goto fail;
-		}
+	pool->base.display_clock = dce120_disp_clk_create(ctx);
+	if (pool->base.display_clock == NULL) {
+		dm_error("DC: failed to create display clock!\n");
+		BREAK_TO_DEBUGGER();
+		goto fail;
 	}
 
 	pool->base.dmcu = dcn10_dmcu_create(ctx,