diff options
Diffstat (limited to 'system/nvidia-legacy470-kernel/nvidia-rcu_read_lock-unlock.patch')
| -rw-r--r-- | system/nvidia-legacy470-kernel/nvidia-rcu_read_lock-unlock.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/system/nvidia-legacy470-kernel/nvidia-rcu_read_lock-unlock.patch b/system/nvidia-legacy470-kernel/nvidia-rcu_read_lock-unlock.patch new file mode 100644 index 0000000000..124d9a6ddc --- /dev/null +++ b/system/nvidia-legacy470-kernel/nvidia-rcu_read_lock-unlock.patch @@ -0,0 +1,45 @@ +--- a/kernel/common/inc/nv-linux.h ++++ b/kernel/common/inc/nv-linux.h +@@ -1990,2 +1990,23 @@ + ++#if defined(CONFIG_HAVE_ARCH_PFN_VALID) || LINUX_VERSION_CODE < KERNEL_VERSION(6,1,76) ++# define nv_pfn_valid pfn_valid ++#else ++/* pre-6.1.76 kernel pfn_valid version without GPL rcu_read_lock/unlock() */ ++static inline int nv_pfn_valid(unsigned long pfn) ++{ ++ struct mem_section *ms; ++ ++ if (PHYS_PFN(PFN_PHYS(pfn)) != pfn) ++ return 0; ++ ++ if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS) ++ return 0; ++ ++ ms = __pfn_to_section(pfn); ++ if (!valid_section(ms)) ++ return 0; ++ ++ return early_section(ms) || pfn_section_valid(ms, pfn); ++} ++#endif + #endif /* _NV_LINUX_H_ */ +--- a/kernel/nvidia/nv-mmap.c ++++ b/kernel/nvidia/nv-mmap.c +@@ -576,3 +576,3 @@ + if (!IS_REG_OFFSET(nv, access_start, access_len) && +- (pfn_valid(PFN_DOWN(mmap_start)))) ++ (nv_pfn_valid(PFN_DOWN(mmap_start)))) + { +--- a/kernel/nvidia/os-mlock.c ++++ b/kernel/nvidia/os-mlock.c +@@ -102,3 +102,3 @@ + if ((nv_follow_pfn(vma, (start + (i * PAGE_SIZE)), &pfn) < 0) || +- (!pfn_valid(pfn))) ++ (!nv_pfn_valid(pfn))) + { +@@ -176,3 +176,3 @@ + +- if (pfn_valid(pfn)) ++ if (nv_pfn_valid(pfn)) + { |