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xorg-x11-server/pci-legacy-mem-fallback.diff

20 lines
663 B
Diff

--- hw/xfree86/os-support/bus/linuxPci.c
+++ hw/xfree86/os-support/bus/linuxPci.c
@@ -493,6 +493,7 @@ xf86MapDomainMemory(int ScreenNum, int F
* legacy_mem interface is unavailable.
*/
if ((Base > 1024*1024) || ((fd = linuxOpenLegacy(dev, "legacy_mem")) < 0))
+ fallback:
return linuxMapPci(ScreenNum, Flags, dev, Base, Size,
PCIIOC_MMAP_IS_MEM);
else
@@ -501,6 +502,8 @@ xf86MapDomainMemory(int ScreenNum, int F
if (fd >= 0)
close(fd);
if (addr == NULL || addr == MAP_FAILED) {
+ if (errno == ENXIO)
+ goto fallback;
perror("mmap failure");
FatalError("xf86MapDomainMem(): mmap() failure\n");
}