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Introduce nvgpu_gmmu_unmap_addr() to unmap a nvgpu_mem that was mapped at some other address than mem.gpu_va, which can be the case for buffers that are shared across different address spaces. Delete the address parameter from nvgpu_gmmu_unmap(), as the common case is to store the address to mem.gpu_va when mapping the buffer. Modify some instances of consecutive unmap + free calls to call just nvgpu_dma_unmap_free(). Change-Id: Iecd7c9aa41d04e9f48e055f6bc0c9227cd759c69 Signed-off-by: Konsta Hölttä <kholtta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2601787 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>