drm/amd/display: Clean FPGA code in dc

[Why]
Drop dead code for Linux.

[How]
Remove all IS_FPGA_MAXIMUS_DC and IS_DIAG_DC

Reviewed-by: Ariel Bernstein <eric.bernstein@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 53 insertions, 86 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 905246a2ece4..13b4e5118459 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1012,31 +1012,29 @@ static void dcn10_reset_back_end_for_pipe(
 		return;
 	}
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		link = pipe_ctx->stream->link;
-		/* DPMS may already disable or */
-		/* dpms_off status is incorrect due to fastboot
-		 * feature. When system resume from S4 with second
-		 * screen only, the dpms_off would be true but
-		 * VBIOS lit up eDP, so check link status too.
-		 */
-		if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
-			dc->link_srv->set_dpms_off(pipe_ctx);
-		else if (pipe_ctx->stream_res.audio)
-			dc->hwss.disable_audio_stream(pipe_ctx);
-
-		if (pipe_ctx->stream_res.audio) {
-			/*disable az_endpoint*/
-			pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
-
-			/*free audio*/
-			if (dc->caps.dynamic_audio == true) {
-				/*we have to dynamic arbitrate the audio endpoints*/
-				/*we free the resource, need reset is_audio_acquired*/
-				update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
-						pipe_ctx->stream_res.audio, false);
-				pipe_ctx->stream_res.audio = NULL;
-			}
+	link = pipe_ctx->stream->link;
+	/* DPMS may already disable or */
+	/* dpms_off status is incorrect due to fastboot
+	 * feature. When system resume from S4 with second
+	 * screen only, the dpms_off would be true but
+	 * VBIOS lit up eDP, so check link status too.
+	 */
+	if (!pipe_ctx->stream->dpms_off || link->link_status.link_active)
+		dc->link_srv->set_dpms_off(pipe_ctx);
+	else if (pipe_ctx->stream_res.audio)
+		dc->hwss.disable_audio_stream(pipe_ctx);
+
+	if (pipe_ctx->stream_res.audio) {
+		/*disable az_endpoint*/
+		pipe_ctx->stream_res.audio->funcs->az_disable(pipe_ctx->stream_res.audio);
+
+		/*free audio*/
+		if (dc->caps.dynamic_audio == true) {
+			/*we have to dynamic arbitrate the audio endpoints*/
+			/*we free the resource, need reset is_audio_acquired*/
+			update_audio_usage(&dc->current_state->res_ctx, dc->res_pool,
+					pipe_ctx->stream_res.audio, false);
+			pipe_ctx->stream_res.audio = NULL;
 		}
 	}
 
@@ -1499,28 +1497,6 @@ void dcn10_init_hw(struct dc *dc)
 	if (dc->res_pool->dccg && dc->res_pool->dccg->funcs->dccg_init)
 		dc->res_pool->dccg->funcs->dccg_init(res_pool->dccg);
 
-	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-
-		REG_WRITE(REFCLK_CNTL, 0);
-		REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
-		REG_WRITE(DIO_MEM_PWR_CTRL, 0);
-
-		if (!dc->debug.disable_clock_gate) {
-			/* enable all DCN clock gating */
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
-
-			REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0);
-
-			REG_UPDATE(DCFCLK_CNTL, DCFCLK_GATE_DIS, 0);
-		}
-
-		//Enable ability to power gate / don't force power on permanently
-		if (hws->funcs.enable_power_gating_plane)
-			hws->funcs.enable_power_gating_plane(hws, true);
-
-		return;
-	}
-
 	if (!dcb->funcs->is_accelerated_mode(dcb))
 		hws->funcs.disable_vga(dc->hwseq);
 
@@ -1532,23 +1508,21 @@ void dcn10_init_hw(struct dc *dc)
 		res_pool->ref_clocks.xtalin_clock_inKhz =
 				dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency;
 
-		if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-			if (res_pool->dccg && res_pool->hubbub) {
+		if (res_pool->dccg && res_pool->hubbub) {
 
-				(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
-						dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
-						&res_pool->ref_clocks.dccg_ref_clock_inKhz);
+			(res_pool->dccg->funcs->get_dccg_ref_freq)(res_pool->dccg,
+					dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
+					&res_pool->ref_clocks.dccg_ref_clock_inKhz);
 
-				(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
-						res_pool->ref_clocks.dccg_ref_clock_inKhz,
-						&res_pool->ref_clocks.dchub_ref_clock_inKhz);
-			} else {
-				// Not all ASICs have DCCG sw component
-				res_pool->ref_clocks.dccg_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-				res_pool->ref_clocks.dchub_ref_clock_inKhz =
-						res_pool->ref_clocks.xtalin_clock_inKhz;
-			}
+			(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
+					res_pool->ref_clocks.dccg_ref_clock_inKhz,
+					&res_pool->ref_clocks.dchub_ref_clock_inKhz);
+		} else {
+			// Not all ASICs have DCCG sw component
+			res_pool->ref_clocks.dccg_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
+			res_pool->ref_clocks.dchub_ref_clock_inKhz =
+					res_pool->ref_clocks.xtalin_clock_inKhz;
 		}
 	} else
 		ASSERT_CRITICAL(false);
@@ -3070,15 +3044,13 @@ void dcn10_prepare_bandwidth(
 	if (dc->debug.sanity_checks)
 		hws->funcs.verify_allow_pstate_change_high(dc);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (context->stream_count == 0)
-			context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
+	if (context->stream_count == 0)
+		context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
 
-		dc->clk_mgr->funcs->update_clocks(
-				dc->clk_mgr,
-				context,
-				false);
-	}
+	dc->clk_mgr->funcs->update_clocks(
+			dc->clk_mgr,
+			context,
+			false);
 
 	dc->wm_optimized_required = hubbub->funcs->program_watermarks(hubbub,
 			&context->bw_ctx.bw.dcn.watermarks,
@@ -3110,15 +3082,13 @@ void dcn10_optimize_bandwidth(
 	if (dc->debug.sanity_checks)
 		hws->funcs.verify_allow_pstate_change_high(dc);
 
-	if (!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
-		if (context->stream_count == 0)
-			context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
+	if (context->stream_count == 0)
+		context->bw_ctx.bw.dcn.clk.phyclk_khz = 0;
 
-		dc->clk_mgr->funcs->update_clocks(
-				dc->clk_mgr,
-				context,
-				true);
-	}
+	dc->clk_mgr->funcs->update_clocks(
+			dc->clk_mgr,
+			context,
+			true);
 
 	hubbub->funcs->program_watermarks(hubbub,
 			&context->bw_ctx.bw.dcn.watermarks,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index c9e53dc49c92..e1975991e075 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -653,11 +653,9 @@ void optc1_lock(struct timing_generator *optc)
 	REG_SET(OTG_MASTER_UPDATE_LOCK, 0,
 			OTG_MASTER_UPDATE_LOCK, 1);
 
-	/* Should be fast, status does not update on maximus */
-	if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS)
-		REG_WAIT(OTG_MASTER_UPDATE_LOCK,
-				UPDATE_LOCK_STATUS, 1,
-				1, 10);
+	REG_WAIT(OTG_MASTER_UPDATE_LOCK,
+			UPDATE_LOCK_STATUS, 1,
+			1, 10);
 
 	TRACE_OPTC_LOCK_UNLOCK_STATE(optc1, optc->inst, true);
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 21ec1ba5ed75..a0625209c86d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1651,9 +1651,8 @@ static bool dcn10_resource_construct(
 	}
 
 	if (!resource_construct(num_virtual_links, dc, &pool->base,
-			(!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment) ?
-			&res_create_funcs : &res_create_maximus_funcs)))
-			goto fail;
+			&res_create_funcs))
+		goto fail;
 
 	dcn10_hw_sequencer_construct(dc);
 	dc->caps.max_planes =  pool->base.pipe_count;