Compiling NVIDIA 418.74 Driver on Kernel 5.2
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With the recent release of Kernel 5.2, compiling NVIDIA 418.74 drivers is now shouting this error:
/NVIDIA-Linux-x86_64-418.74/kernel/nvidia-uvm/uvm8_tools.c:209:13: error: conflicting types for ‘put_user_pages’
209 | static void put_user_pages(struct page **pages, NvU64 page_count)
| ^~~~~~~~~~~~~~
In file included from /NVIDIA-Linux-x86_64-418.74/kernel/common/inc/nv-pgprot.h:17,
from /NVIDIA-Linux-x86_64-418.74/kernel/common/inc/nv-linux.h:20,
from /NVIDIA-Linux-x86_64-418.74/kernel/nvidia-uvm/uvm_linux.h:41,
from /NVIDIA-Linux-x86_64-418.74/kernel/nvidia-uvm/uvm_common.h:48,
from /NVIDIA-Linux-x86_64-418.74/kernel/nvidia-uvm/uvm8_tools.c:23:
./include/linux/mm.h:1075:6: note: previous declaration of ‘put_user_pages’ was here
1075 | void put_user_pages(struct page **pages, unsigned long npages);
| ^~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:279: /NVIDIA-Linux-x86_64-418.74/kernel/nvidia-uvm/uvm8_tools.o] Error 1
It turns out that put_user_page is now being provided by the
kernel and it conflicts with the existing one by NVIDIA drivers.
What one can do to ensure the drivers will compile just fine is to comment out
the functions present on kernel/nvidia-uvm/uvm8_tools.c. Below you’ll find
this patch that you can add to your compile script.
--- a/kernel/nvidia-uvm/uvm8_tools.c
+++ b/kernel/nvidia-uvm/uvm8_tools.c
@@ -204,12 +204,14 @@ static bool tracker_is_counter(uvm_tools_event_tracker_t *event_tracker)
return event_tracker != NULL && !event_tracker->is_queue;
}
+/*
static void put_user_pages(struct page **pages, NvU64 page_count)
{
NvU64 i;
for (i = 0; i < page_count; i++)
put_page(pages[i]);
}
+*/
static void unmap_user_pages(struct page **pages, void *addr, NvU64 size)
{
If you happen to use Arch Linux, I’ve added this to my own nvidia-418 package.
Credits
Well, I didn’t find this on my own. Thanks myn for sharing your findings.