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| author | Maxime Ripard <[email protected]> | 2019-04-01 08:56:44 +0000 |
|---|---|---|
| committer | Rob Herring <[email protected]> | 2019-04-10 21:33:47 +0000 |
| commit | f83a6e5dea6cf71d39c6b70a07cbe99b4ef48fe1 (patch) | |
| tree | 773797721d7faffa0054dc42421db2667a2d761e /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c | |
| parent | of: address: Retrieve a parent through a callback in __of_translate_address (diff) | |
| download | kernel-f83a6e5dea6cf71d39c6b70a07cbe99b4ef48fe1.tar.gz kernel-f83a6e5dea6cf71d39c6b70a07cbe99b4ef48fe1.zip | |
of: address: Add support for the parent DMA bus
Some SoCs have devices that are using a separate bus from the main bus to
perform DMA.
These buses might have some restrictions and/or different mapping than from
the CPU side, so we'd need to express those using the usual dma-ranges, but
using a different DT node than the node's parent.
Now that the generic interconnect bindings are available, we can model an
interconnect with the reserved name "dma-mem" for those use-cases.
Reviewed-by: Robin Murphy <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_cpu.c')
0 files changed, 0 insertions, 0 deletions