1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
linux/drivers/gpu/drm/amd/display/dc/dsc
Alex Deucher c241ed2f0e drm/amdgpu/display: drop DCN support for aarch64
From Ard:

"Simply disabling -mgeneral-regs-only left and right is risky, given that
the standard AArch64 ABI permits the use of FP/SIMD registers anywhere,
and GCC is known to use SIMD registers for spilling, and may invent
other uses of the FP/SIMD register file that have nothing to do with the
floating point code in question. Note that putting kernel_neon_begin()
and kernel_neon_end() around the code that does use FP is not sufficient
here, the problem is in all the other code that may be emitted with
references to SIMD registers in it.

So the only way to do this properly is to put all floating point code in
a separate compilation unit, and only compile that unit with
-mgeneral-regs-only."

Disable support until the code can be properly refactored to support this
properly on aarch64.

Acked-by: Will Deacon <will@kernel.org>
Reported-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-01-06 16:24:10 -05:00
..
dc_dsc.c drm/amd/display: Add an option to limit max DSC target bpp per sink 2020-10-26 13:29:39 -04:00
dscc_types.h drm/amd/display: Drop CONFIG_DRM_AMD_DC_DCN2_0 and DSC_SUPPORTED 2019-11-13 15:29:44 -05:00
Makefile drm/amdgpu/display: drop DCN support for aarch64 2021-01-06 16:24:10 -05:00
qp_tables.h drm/amd/display: Drop CONFIG_DRM_AMD_DC_DCN2_0 and DSC_SUPPORTED 2019-11-13 15:29:44 -05:00
rc_calc.c drm/amd/display: Fix compilation error 2020-11-02 15:29:33 -05:00
rc_calc.h drm/amd/display: Fix compilation error 2020-11-02 15:29:33 -05:00
rc_calc_dpi.c drm/amd/display: Rework dsc to isolate FPU operations 2020-07-01 01:59:20 -04:00