[PATCH v4 2/2] radeon: use memcpy_to/fromio for UVD fw upload

2021-06-04 Thread Chen Li
I met a gpu addr bug recently and the kernel log tells me the pc is memcpy/memset and link register is radeon_uvd_resume. As we know, in some architectures, optimized memcpy/memset may not work well on device memory. Trival memcpy_toio/memset_io can fix this problem. BTW, amdgpu has already don

Re: [PATCH v4 2/2] radeon: use memcpy_to/fromio for UVD fw upload

2021-06-04 Thread Alex Deucher
Applied with the RB fixed. Thanks! Alex On Fri, Jun 4, 2021 at 7:53 AM Chen Li wrote: > > > I met a gpu addr bug recently and the kernel log > tells me the pc is memcpy/memset and link register is > radeon_uvd_resume. > > As we know, in some architectures, optimized memcpy/memset > may not work

Re: [PATCH v4 2/2] radeon: use memcpy_to/fromio for UVD fw upload

2021-06-04 Thread Christian König
Am 04.06.21 um 10:43 schrieb Chen Li: I met a gpu addr bug recently and the kernel log tells me the pc is memcpy/memset and link register is radeon_uvd_resume. As we know, in some architectures, optimized memcpy/memset may not work well on device memory. Trival memcpy_toio/memset_io can fix this