Re: [PATCH] drm/amd/display: Fix DML file discovery for out-of-tree builds

On 2026-07-23 01:44, Prike Liang wrote:
> By anchoring the search to the DML top-level Makefile directory,
> FPU CFLAGS are now correctly applied to all relevant source files.
> 
> Signed-off-by: Prike Liang <[email protected]>

Reviewed-by: Leo Li <[email protected]>

> ---
>  drivers/gpu/drm/amd/display/dc/dml2_0/Makefile | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dml2_0/Makefile b/drivers/gpu/drm/amd/display/dc/dml2_0/Makefile
> index 44e00c2b7ac7..e9ce7813b0f5 100644
> --- a/drivers/gpu/drm/amd/display/dc/dml2_0/Makefile
> +++ b/drivers/gpu/drm/amd/display/dc/dml2_0/Makefile
> @@ -55,8 +55,11 @@ 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)
> +
> +THIS_MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
> +DML2_ABS_PATH := $(patsubst %/,%,$(dir $(THIS_MAKEFILE_PATH)))
> +
> +DML2_C_FILES := $(shell find $(DML2_ABS_PATH) -name '*.c')
>  
>  # 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)))