forked from mirrors/nixpkgs
29 lines
752 B
Diff
29 lines
752 B
Diff
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--- a/kernel/nv-pat.c 2015-07-03 08:39:35.417031728 +0200
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+++ b/kernel/nv-pat.c 2015-07-03 08:42:15.631838988 +0200
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@@ -35,8 +35,13 @@
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unsigned long cr0 = read_cr0();
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write_cr0(((cr0 & (0xdfffffff)) | 0x40000000));
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wbinvd();
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 20, 0)
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*cr4 = read_cr4();
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if (*cr4 & 0x80) write_cr4(*cr4 & ~0x80);
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+#else
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+ *cr4 = __read_cr4();
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+ if (*cr4 & 0x80) __write_cr4(*cr4 & ~0x80);
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+#endif
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__flush_tlb();
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}
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@@ -46,7 +51,11 @@
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wbinvd();
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__flush_tlb();
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write_cr0((cr0 & 0x9fffffff));
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 20, 0)
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if (cr4 & 0x80) write_cr4(cr4);
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+#else
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+ if (cr4 & 0x80) __write_cr4(cr4);
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+#endif
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}
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static int nv_determine_pat_mode(void)
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