* Alex Sierra [210607 16:43]:
> From: Ralph Campbell
>
> There are several places where ZONE_DEVICE struct pages assume a reference
> count == 1 means the page is idle and free. Instead of open coding this,
> add a helper function to hide this detail.
>
> Signed-off-by: Ralph Campbell
> ---
>
Use vma_lookup() to find the VMA at a specific address. As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.
Signed-off-by: Liam R. Howlett
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
1 file changed, 2
* Alex Sierra [211206 14:00]:
> Device Coherent type uses device memory that is coherently accesible by
> the CPU. This could be shown as SP (special purpose) memory range
> at the BIOS-e820 memory enumeration. If no SP memory is supported in
> system, this could be faked by setting
