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video: tegra: nvmap: Define nth_page

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In Linux v6.18, commit 84efbefa26df ("mm: remove nth_page()") removes
the nth_page macro and this breaks the build for NVMAP. Define the
nth_page macro if it is not defined in the kernel to fix the build.

Bug 5566555
Bug 5215421

Change-Id: Iaa6bcd2204e4c1ab59516bb7353a71f3ec6e19c4
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3449760
(cherry picked from commit c0db792d335d8525821d3aac16e64506e84bf4c2)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3475136
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
This commit is contained in:
Ketan Patil
2025-10-17 16:27:54 +00:00
committed by mobile promotions
parent d7466525c8
commit a530fa20f8
1 changed files with 8 additions and 0 deletions
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8
drivers/video/tegra/nvmap/nvmap_alloc.h
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@@ -22,6 +22,14 @@
#define NVMAP_IVM_ALIGNMENT (SZ_32K) #define NVMAP_IVM_ALIGNMENT (SZ_32K)
#define NVMAP_IVM_INVALID_PEER (-1) #define NVMAP_IVM_INVALID_PEER (-1)
#ifndef nth_page
#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP)
#define nth_page(page, n) pfn_to_page(page_to_pfn((page)) + (n))
#else
#define nth_page(page, n) ((page) + (n))
#endif /* CONFIG_SPARSEMEM && !CONFIG_SPARSEMEM_VMEMMAP */
#endif /* nth_page */
struct nvmap_heap; struct nvmap_heap;
struct debugfs_info; struct debugfs_info;
struct nvmap_carveout_node; struct nvmap_carveout_node;