kernel.git/drivers/gpu/drm/amd/display/dc/dml/Makefile, branch linux-5.3.y

drm/amd/display: readd -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines

2019-10-01T06:24:45Z

commit 0f0727d971f6fdf8f1077180d495ddb9928f0c8b upstream. arch/x86/Makefile disables SSE and SSE2 for the whole kernel. The AMDGPU drivers modified in this patch re-enable SSE but not SSE2. Turn on SSE2 to support emitting double precision floating point instructions rather than calls to non-existent (usually available from gcc_s or compiler_rt) floating point helper routines for Clang. This was originally landed in: commit 10117450735c ("drm/amd/display: add -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines") but reverted in: commit 193392ed9f69 ("Revert "drm/amd/display: add -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines"") due to bugreports from GCC builds. Add guards to only do so for Clang. Link: https://bugs.freedesktop.org/show_bug.cgi?id=109487 Link: https://github.com/ClangBuiltLinux/linux/issues/327 Suggested-by: Sedat Dilek Suggested-by: Sami Tolvanen Signed-off-by: Nick Desaulniers Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Properly guard display_mode_vba with DCN2

2019-06-22T14:34:09Z

[Why] display_mode_vba is for DCN2 and up. When building for upstream (DCN1 enabled only), there will be a build error, since display_mode_vba.c/h is stripped out. Note that building DCN1 only with internal dal-dev is still fine, since display_mode_vba.h is not stripped out internally - only in upstream. The make directives therefore stll work, and so will any #include's. [How] Since subsequent generations require DCN2 enabled anyways, guard the makefile directive for display_mode_vba.o with DCN2. Guard any includes with DCN2. In addition, guard the entire contents of display_mode_vba.h with DCN2, to simulate the file being stripped out in upstream. A forward declaration for 'struct display_mode_lib' also needs to be added in display_mode_lib.h. Previously, display_mode_vba.h contained the forward declaration, and display_mode_lib.h in turn included it. This won't work if mode_vba.h is stripped out, requring mode_lib.h to do so itself. Signed-off-by: Leo Li Reviewed-by: Harry Wentland Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher

drm/amd/display: Add DCN2 changes to DML

2019-06-21T23:59:34Z

Update DML (Display Mode Lib) to support DCN2 Signed-off-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: remove soc_bounding_box.c

2018-07-05T21:38:43Z

Signed-off-by: Dmytro Laktyushkin Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Remove unused CFLAGS entry in DML Makefile

2018-02-19T19:19:54Z

Missed that with a previous change that removed unused files. Signed-off-by: Harry Wentland Acked-by: Alex Deucher Signed-off-by: Alex Deucher

amdgpu/dc/dml: Support clang option for stack alignment

2018-02-19T19:19:51Z

DML uses the compiler option -mpreferred-stack-boundary=4 to configure a stack alignment of 16 bytes. Clang uses the option -mstack-alignment instead, which expects as parameter the alignment in bytes, and not a power of two like -mpreferred-stack-boundary. Probe for both compiler options and use the correct one, similar to what is done in arch/x86/Makefile. Reported-by: Guenter Roeck Signed-off-by: Matthias Kaehlcke Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

amdgpu/dc/dml: Consolidate redundant CFLAGS

2018-02-19T19:19:50Z

Use a variable for common CFLAGS instead of specifying the same flags for every source file. Signed-off-by: Matthias Kaehlcke Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: dc: Remove unused display_mode_vba.c

2018-02-19T19:18:32Z

We're currently not using this. v2: More files and includes to remove. Signed-off-by: Harry Wentland Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add license to Makefiles

2017-12-04T16:47:55Z

Was missing license text. Acked-by: Harry Wentland Acked-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amd/display: drop display_pipe_clocks.c.

2017-10-21T20:50:58Z

This code isn't used at all in the kernel tree, perhaps it can wait to be imported when it is. It also does a lot of floating point calcs, so probably good to drop it until it's needed and we can ensure proper fpu accessors. Signed-off-by: Dave Airlie Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher