drivers/gpu/drm/amd/display/dc/dml2_0/Makefile

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/amd/display/dc/dml2_0/Makefile

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/amd/display/dc/dml2_0/Makefile
Extension
[no extension]
Size
5392 bytes
Lines
115
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: build/configuration rule
Status
atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: MIT */
#
# Copyright 2023 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
#
# Makefile for dml2.

dml2_ccflags := $(CC_FLAGS_FPU)
dml2_rcflags := $(CC_FLAGS_NO_FPU)

ifneq ($(CONFIG_FRAME_WARN),0)
    ifeq ($(filter y,$(CONFIG_KASAN)$(CONFIG_KCSAN)),y)
        ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_COMPILE_TEST),yy)
            frame_warn_limit := 4096
        else
            frame_warn_limit := 3072
        endif
    else
        frame_warn_limit := 2056
    endif

    ifeq ($(call test-lt, $(CONFIG_FRAME_WARN), $(frame_warn_limit)),y)
        frame_warn_flag := -Wframe-larger-than=$(frame_warn_limit)
    endif
endif

subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/dml2_core
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/dml2_mcg/
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/dml2_dpmm/
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/dml2_pmo/
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/dml2_standalone_libraries/
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/src/inc
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/inc
subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/dml2_0/dml21/

# Add FPU flags to all dml2 files by default, remove NO_FPU flags.
# FPU flags step 1: Find all .c files in dal/dc/dml2_0 and it's subfolders
DML2_ABS_PATH := $(FULL_AMD_DISPLAY_PATH)/dc/dml2_0
DML2_C_FILES := $(shell find $(DML2_ABS_PATH) -name '*.c' -type f)

# FPU flags step 2: Convert to .o and make paths relative to $(AMDDALPATH)/dc/dml2_0/
DML2_RELATIVE_O_FILES := $(patsubst $(DML2_ABS_PATH)/%,dc/dml2_0/%,$(patsubst %.c,%.o,$(DML2_C_FILES)))

# FPU flags step 3: Apply FPU flags to all .o files from dal/dc/dml2_0 and it's subfolders
$(foreach obj,$(DML2_RELATIVE_O_FILES),$(eval CFLAGS_$(AMDDALPATH)/$(obj) := $(dml2_ccflags)))
$(foreach obj,$(DML2_RELATIVE_O_FILES),$(eval CFLAGS_REMOVE_$(AMDDALPATH)/$(obj) := $(dml2_rcflags)))

# FPU flags step 4: Replace CFLAGS per file for files with additional flags beyond dml2_ccflags and dml2_rcflags
CFLAGS_$(AMDDALPATH)/dc/dml2_0/display_mode_core.o := $(dml2_ccflags) $(frame_warn_flag)
CFLAGS_$(AMDDALPATH)/dc/dml2_0/dml21/src/dml2_core/dml2_core_dcn4_calcs.o := $(dml2_ccflags) $(frame_warn_flag)

Annotation

Implementation Notes