Re: [PATCH -stable] drm/amdgpu/display: drop DCN support for aarch64

2021-01-21 Thread Harry Wentland
On 2021-01-21 4:20 a.m., Ard Biesheuvel wrote: From: Alex Deucher commit c241ed2f0ea549c18cff62a3708b43846b84dae3 upstream. 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 k

Re: [PATCH -stable] drm/amdgpu/display: drop DCN support for aarch64

2021-01-21 Thread Greg KH
On Thu, Jan 21, 2021 at 10:20:40AM +0100, Ard Biesheuvel wrote: > From: Alex Deucher > > commit c241ed2f0ea549c18cff62a3708b43846b84dae3 upstream. > > >From Ard: > > "Simply disabling -mgeneral-regs-only left and right is risky, given that > the standard AArch64 ABI permits the use of FP/SIMD r

[PATCH -stable] drm/amdgpu/display: drop DCN support for aarch64

2021-01-21 Thread Ard Biesheuvel
From: Alex Deucher commit c241ed2f0ea549c18cff62a3708b43846b84dae3 upstream. >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