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| author | Rob Clark <robdclark@chromium.org> | 2023-03-20 10:31:25 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-03-20 10:31:25 -0700 |
| commit | e752ab11dcb48353727ea26eefd740155e028865 (patch) | |
| tree | bbd47198be4e42bbf990096ca36e96f3da40cfb6 /include/asm-generic/memory_model.h | |
| parent | 1844e680d56bb0c4e0489138f2b7ba2dc1c988e3 (diff) | |
| parent | 8bf6e20253b2d2b614f2c0b491f840e956fa6b05 (diff) | |
| download | lwn-e752ab11dcb48353727ea26eefd740155e028865.tar.gz lwn-e752ab11dcb48353727ea26eefd740155e028865.zip | |
Merge remote-tracking branch 'drm/drm-next' into msm-next
Merge drm-next into msm-next to pick up external clk and PM dependencies
for improved a6xx GPU reset sequence.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'include/asm-generic/memory_model.h')
| -rw-r--r-- | include/asm-generic/memory_model.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h index a2c8ed60233a..6796abe1900e 100644 --- a/include/asm-generic/memory_model.h +++ b/include/asm-generic/memory_model.h @@ -19,6 +19,18 @@ #define __page_to_pfn(page) ((unsigned long)((page) - mem_map) + \ ARCH_PFN_OFFSET) +#ifndef pfn_valid +static inline int pfn_valid(unsigned long pfn) +{ + /* avoid <linux/mm.h> include hell */ + extern unsigned long max_mapnr; + unsigned long pfn_offset = ARCH_PFN_OFFSET; + + return pfn >= pfn_offset && (pfn - pfn_offset) < max_mapnr; +} +#define pfn_valid pfn_valid +#endif + #elif defined(CONFIG_SPARSEMEM_VMEMMAP) /* memmap is virtually contiguous. */ |