Jon Hunter d9b938131d nvmap: Fix build for Linux v6.13 ...

In Linux v6.13, commit b129125e1f96 ("arm64: asm-offsets: remove
DMA_{TO,FROM}_DEVICE") removes the definitions DMA_TO/FROM_DEVICE from
the assembly header file 'asm-offsets.h' which is used by the functions
__dma_map_area() and __dma_unmap_area() in nvmap_cache_maint.S.

From reviewing the NVMAP code, the function __dma_unmap_area() is never
used and so we can simply remove this. Split the __dma_map_area() into
two functions __dma_map_area_to_device() and
__dma_map_area_from_device() to avoid having to pass the direction.

Bug 4991895

Change-Id: I4a0f658401beff5c5e5457de72050b21acf820fa
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3261710
(cherry picked from commit de3a6ce1cbff438cba468c5cf817e3fe297d47a0)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3499753
Tested-by: Brad Griffis <bgriffis@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>

2025-12-04 09:41:02 -08:00

..

tegra

nvmap: Fix build for Linux v6.13

2025-12-04 09:41:02 -08:00