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Any PDE can allocate memory with a specific page size. That means memory allocation with page size 4K and 64K will be realized by different PDEs with page size (or PTE size) 4K and 64K respectively. To accomplish this user vma is required to be pde aligned. Currently, user vma is aligned by (big_page_size << 10) carried over from when pde size was equivalent to (big_page_size << 10). Modify user vma alignment check to use pde size. JIRA NVGPU-5302 Change-Id: I2c6599fe50ce9fb081dd1f5a8cd6aa48b17b33b4 Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2428327 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: Sami Kiminki <skiminki@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>