nixpkgs/pkgs/os-specific/linux/nvidia-x11/nvidia-340.76-kernel-4.0.patch
Vladimír Čunát e2e21ef320 nvidia-x11-legacy{340,304}: fix build with linux-3.18
Close #9218.
It's our default kernel (now and for the upcoming release).
- 304 won't build with 4.1,
- 173 didn't even build with 3.14 due to other issues (3.12 is OK ATM)
- all legacy drivers are up-to-date with upstream releases.
2015-08-13 14:11:06 +02:00

28 lines
752 B
Diff

--- a/kernel/nv-pat.c 2015-07-03 08:39:35.417031728 +0200
+++ b/kernel/nv-pat.c 2015-07-03 08:42:15.631838988 +0200
@@ -35,8 +35,13 @@
unsigned long cr0 = read_cr0();
write_cr0(((cr0 & (0xdfffffff)) | 0x40000000));
wbinvd();
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
*cr4 = read_cr4();
if (*cr4 & 0x80) write_cr4(*cr4 & ~0x80);
+#else
+ *cr4 = __read_cr4();
+ if (*cr4 & 0x80) __write_cr4(*cr4 & ~0x80);
+#endif
__flush_tlb();
}
@@ -46,7 +51,11 @@
wbinvd();
__flush_tlb();
write_cr0((cr0 & 0x9fffffff));
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0)
if (cr4 & 0x80) write_cr4(cr4);
+#else
+ if (cr4 & 0x80) __write_cr4(cr4);
+#endif
}
static int nv_determine_pat_mode(void)