tree 10729e37a136c2d00e60052d0e2c95629ca8b563
parent eb3ca7c16237a7e8f6906ca6749dc42ee9dbf6c6
author Leon Romanovsky <leonro@nvidia.com> 1750252591 -0400
committer Leon Romanovsky <leonro@nvidia.com> 1750337783 -0400

dma-mapping: refactor resource mapping to use dma_*map_phys() API

Replace the separate dma_map_resource() and dma_unmap_resource()
implementations with wrappers around dma_map_phys() and dma_unmap_phys()
using the DMA_ATTR_MMIO flag.

The change removes the standalone resource mapping logic and instead
leverages the existing physical address-based mapping infrastructure
that already supports MMIO regions through the DMA_ATTR_MMIO attribute.
This consolidation reduces the codebase complexity while maintaining
the same functionality for resource mapping operations.

The refactoring also removes the corresponding debug and trace events
for resource mapping since they are now handled by the unified phys
mapping infrastructure, further reducing the maintenance burden.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>