7598627621
While the apg_end address is 0xffffffff, if add 1 with it, the value will be overflow and roll back to 0. So when 0 is written to mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, the system aperture is actually disabled. And so any access to vram will trigger a page fault. Raven2's HW issue only need increase the vram end address, and needn't do it on the agp. Signed-off-by: Huang Rui <ray.huang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
||
|---|---|---|
| .. | ||
| acp | ||
| amdgpu | ||
| amdkfd | ||
| display | ||
| include | ||
| lib | ||
| powerplay | ||