From 79db0734dcc453dd9371a056722d84e01ba61b91 Mon Sep 17 00:00:00 2001
From: Qingqing Zhuo <qingqing.zhuo@amd.com>
Date: Fri, 1 Oct 2021 22:36:10 +0800
Subject: drm/amd/display: Re-arrange FPU code structure for dcn2x
Git-commit: ee37341199c61558b73113659695c90bf4736eb2
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
[Why]
Current FPU code for DCN2x is located under dml/dcn2x.
This is not aligned with DC's general source tree
structure.
[How]
Move FPU code for DCN2x to dml/dcn20.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/amd/display/amdgpu_dm/dc_fpu.c | 2 +-
.../drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
.../amd/display/dc/dcn201/dcn201_resource.c | 2 +-
.../drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dml/Makefile | 4 +-
.../drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 102 ++++++++++++++++++
.../drm/amd/display/dc/dml/dcn20/dcn20_fpu.h | 34 ++++++
.../gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.c | 102 ------------------
.../gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.h | 34 ------
9 files changed, 142 insertions(+), 142 deletions(-)
create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.h
delete mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.c
delete mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.h
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
index b1bf80da3a55..ab0c6d191038 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c
@@ -52,7 +52,7 @@ static DEFINE_PER_CPU(int, fpu_recursion_depth);
* This function tells if the code is already under FPU protection or not. A
* function that works as an API for a set of FPU operations can use this
* function for checking if the caller invoked it after DC_FP_START(). For
- * example, take a look at dcn2x.c file.
+ * example, take a look at dcn20_fpu.c file.
*/
inline void dc_assert_fp_enabled(void)
{
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 899d0086ffbe..756f5d411d9a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -35,7 +35,7 @@
#include "include/irq_service_interface.h"
#include "dcn20/dcn20_resource.h"
-#include "dml/dcn2x/dcn2x.h"
+#include "dml/dcn20/dcn20_fpu.h"
#include "dcn10/dcn10_hubp.h"
#include "dcn10/dcn10_ipp.h"
diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
index 8523a048e6f6..0fa381088d1d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
@@ -27,7 +27,7 @@
#include "dc.h"
#include "dcn201_init.h"
-#include "dml/dcn2x/dcn2x.h"
+#include "dml/dcn20/dcn20_fpu.h"
#include "resource.h"
#include "include/irq_service_interface.h"
#include "dcn201_resource.h"
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
index fbbdf9976183..d452a0d1777e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -35,7 +35,7 @@
#include "include/irq_service_interface.h"
#include "dcn20/dcn20_resource.h"
-#include "dml/dcn2x/dcn2x.h"
+#include "dml/dcn20/dcn20_fpu.h"
#include "clk_mgr.h"
#include "dcn10/dcn10_hubp.h"
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 56055df2e8d2..169a4e68f86e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -58,7 +58,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_lib.o := $(dml_ccflags)
ifdef CONFIG_DRM_AMD_DC_DCN
CFLAGS_$(AMDDALPATH)/dc/dml/display_mode_vba.o := $(dml_ccflags)
-CFLAGS_$(AMDDALPATH)/dc/dml/dcn2x/dcn2x.o := $(dml_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/dcn20_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_mode_vba_20.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20.o := $(dml_ccflags)
@@ -93,8 +93,8 @@ CFLAGS_REMOVE_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_rcflags)
DML = display_mode_lib.o display_rq_dlg_helpers.o dml1_display_rq_dlg_calc.o \
ifdef CONFIG_DRM_AMD_DC_DCN
+DML += dcn20/dcn20_fpu.o
DML += display_mode_vba.o dcn20/display_rq_dlg_calc_20.o dcn20/display_mode_vba_20.o
-DML += dcn2x/dcn2x.o
DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
new file mode 100644
index 000000000000..d590dc917363
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2021 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 "resource.h"
+
+#include "dcn20_fpu.h"
+
+/**
+ * DOC: DCN2x FPU manipulation Overview
+ *
+ * The DCN architecture relies on FPU operations, which require special
+ * compilation flags and the use of kernel_fpu_begin/end functions; ideally, we
+ * want to avoid spreading FPU access across multiple files. With this idea in
+ * mind, this file aims to centralize all DCN20 and DCN2.1 (DCN2x) functions
+ * that require FPU access in a single place. Code in this file follows the
+ * following code pattern:
+ *
+ * 1. Functions that use FPU operations should be isolated in static functions.
+ * 2. The FPU functions should have the noinline attribute to ensure anything
+ * that deals with FP register is contained within this call.
+ * 3. All function that needs to be accessed outside this file requires a
+ * public interface that not uses any FPU reference.
+ * 4. Developers **must not** use DC_FP_START/END in this file, but they need
+ * to ensure that the caller invokes it before access any function available
+ * in this file. For this reason, public functions in this file must invoke
+ * dc_assert_fp_enabled();
+ *
+ * Let's expand a little bit more the idea in the code pattern. To fully
+ * isolate FPU operations in a single place, we must avoid situations where
+ * compilers spill FP values to registers due to FP enable in a specific C
+ * file. Note that even if we isolate all FPU functions in a single file and
+ * call its interface from other files, the compiler might enable the use of
+ * FPU before we call DC_FP_START. Nevertheless, it is the programmer's
+ * responsibility to invoke DC_FP_START/END in the correct place. To highlight
+ * situations where developers forgot to use the FP protection before calling
+ * the DC FPU interface functions, we introduce a helper that checks if the
+ * function is invoked under FP protection. If not, it will trigger a kernel
+ * warning.
+ */
+
+void dcn20_populate_dml_writeback_from_context(struct dc *dc,
+ struct resource_context *res_ctx,
+ display_e2e_pipe_params_st *pipes)
+{
+ int pipe_cnt, i;
+
+ dc_assert_fp_enabled();
+
+ for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) {
+ struct dc_writeback_info *wb_info = &res_ctx->pipe_ctx[i].stream->writeback_info[0];
+
+ if (!res_ctx->pipe_ctx[i].stream)
+ continue;
+
+ /* Set writeback information */
+ pipes[pipe_cnt].dout.wb_enable = (wb_info->wb_enabled == true) ? 1 : 0;
+ pipes[pipe_cnt].dout.num_active_wb++;
+ pipes[pipe_cnt].dout.wb.wb_src_height = wb_info->dwb_params.cnv_params.crop_height;
+ pipes[pipe_cnt].dout.wb.wb_src_width = wb_info->dwb_params.cnv_params.crop_width;
+ pipes[pipe_cnt].dout.wb.wb_dst_width = wb_info->dwb_params.dest_width;
+ pipes[pipe_cnt].dout.wb.wb_dst_height = wb_info->dwb_params.dest_height;
+ pipes[pipe_cnt].dout.wb.wb_htaps_luma = 1;
+ pipes[pipe_cnt].dout.wb.wb_vtaps_luma = 1;
+ pipes[pipe_cnt].dout.wb.wb_htaps_chroma = wb_info->dwb_params.scaler_taps.h_taps_c;
+ pipes[pipe_cnt].dout.wb.wb_vtaps_chroma = wb_info->dwb_params.scaler_taps.v_taps_c;
+ pipes[pipe_cnt].dout.wb.wb_hratio = 1.0;
+ pipes[pipe_cnt].dout.wb.wb_vratio = 1.0;
+ if (wb_info->dwb_params.out_format == dwb_scaler_mode_yuv420) {
+ if (wb_info->dwb_params.output_depth == DWB_OUTPUT_PIXEL_DEPTH_8BPC)
+ pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_420_8;
+ else
+ pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_420_10;
+ } else {
+ pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_444_32;
+ }
+
+ pipe_cnt++;
+ }
+}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.h
new file mode 100644
index 000000000000..36f26126d574
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2021 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
+ *
+ */
+
+#ifndef __DCN20_FPU_H__
+#define __DCN20_FPU_H__
+
+void dcn20_populate_dml_writeback_from_context(struct dc *dc,
+ struct resource_context *res_ctx,
+ display_e2e_pipe_params_st *pipes);
+
+#endif /* __DCN20_FPU_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.c b/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.c
deleted file mode 100644
index c58522436291..000000000000
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.c
+++ /dev/null
@@ -1,102 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright 2021 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 "resource.h"
-
-#include "dcn2x.h"
-
-/**
- * DOC: DCN2x FPU manipulation Overview
- *
- * The DCN architecture relies on FPU operations, which require special
- * compilation flags and the use of kernel_fpu_begin/end functions; ideally, we
- * want to avoid spreading FPU access across multiple files. With this idea in
- * mind, this file aims to centralize all DCN20 and DCN2.1 (DCN2x) functions
- * that require FPU access in a single place. Code in this file follows the
- * following code pattern:
- *
- * 1. Functions that use FPU operations should be isolated in static functions.
- * 2. The FPU functions should have the noinline attribute to ensure anything
- * that deals with FP register is contained within this call.
- * 3. All function that needs to be accessed outside this file requires a
- * public interface that not uses any FPU reference.
- * 4. Developers **must not** use DC_FP_START/END in this file, but they need
- * to ensure that the caller invokes it before access any function available
- * in this file. For this reason, public functions in this file must invoke
- * dc_assert_fp_enabled();
- *
- * Let's expand a little bit more the idea in the code pattern. To fully
- * isolate FPU operations in a single place, we must avoid situations where
- * compilers spill FP values to registers due to FP enable in a specific C
- * file. Note that even if we isolate all FPU functions in a single file and
- * call its interface from other files, the compiler might enable the use of
- * FPU before we call DC_FP_START. Nevertheless, it is the programmer's
- * responsibility to invoke DC_FP_START/END in the correct place. To highlight
- * situations where developers forgot to use the FP protection before calling
- * the DC FPU interface functions, we introduce a helper that checks if the
- * function is invoked under FP protection. If not, it will trigger a kernel
- * warning.
- */
-
-void dcn20_populate_dml_writeback_from_context(struct dc *dc,
- struct resource_context *res_ctx,
- display_e2e_pipe_params_st *pipes)
-{
- int pipe_cnt, i;
-
- dc_assert_fp_enabled();
-
- for (i = 0, pipe_cnt = 0; i < dc->res_pool->pipe_count; i++) {
- struct dc_writeback_info *wb_info = &res_ctx->pipe_ctx[i].stream->writeback_info[0];
-
- if (!res_ctx->pipe_ctx[i].stream)
- continue;
-
- /* Set writeback information */
- pipes[pipe_cnt].dout.wb_enable = (wb_info->wb_enabled == true) ? 1 : 0;
- pipes[pipe_cnt].dout.num_active_wb++;
- pipes[pipe_cnt].dout.wb.wb_src_height = wb_info->dwb_params.cnv_params.crop_height;
- pipes[pipe_cnt].dout.wb.wb_src_width = wb_info->dwb_params.cnv_params.crop_width;
- pipes[pipe_cnt].dout.wb.wb_dst_width = wb_info->dwb_params.dest_width;
- pipes[pipe_cnt].dout.wb.wb_dst_height = wb_info->dwb_params.dest_height;
- pipes[pipe_cnt].dout.wb.wb_htaps_luma = 1;
- pipes[pipe_cnt].dout.wb.wb_vtaps_luma = 1;
- pipes[pipe_cnt].dout.wb.wb_htaps_chroma = wb_info->dwb_params.scaler_taps.h_taps_c;
- pipes[pipe_cnt].dout.wb.wb_vtaps_chroma = wb_info->dwb_params.scaler_taps.v_taps_c;
- pipes[pipe_cnt].dout.wb.wb_hratio = 1.0;
- pipes[pipe_cnt].dout.wb.wb_vratio = 1.0;
- if (wb_info->dwb_params.out_format == dwb_scaler_mode_yuv420) {
- if (wb_info->dwb_params.output_depth == DWB_OUTPUT_PIXEL_DEPTH_8BPC)
- pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_420_8;
- else
- pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_420_10;
- } else {
- pipes[pipe_cnt].dout.wb.wb_pixel_format = dm_444_32;
- }
-
- pipe_cnt++;
- }
-}
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.h b/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.h
deleted file mode 100644
index 331547ba0713..000000000000
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn2x/dcn2x.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright 2021 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
- *
- */
-
-#ifndef __DCN2X_H__
-#define __DCN2X_H__
-
-void dcn20_populate_dml_writeback_from_context(struct dc *dc,
- struct resource_context *res_ctx,
- display_e2e_pipe_params_st *pipes);
-
-#endif /* __DCN2X_H__ */
--
2.38.1