> Please suggest me what could be the problem.
the problem is that you are using a way way way too old kernel. I
suggest you fix that first
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c] Error 1
..
The call to "remap_page_range()" is as follows:-
return (io_remap_page_range(vma->vm_start, off, vma->vm_end -
vma->vm_start, vma->vm_page_prot)) ? -EAGAIN : 0;
Please suggest me what could be the problem.
Regards,
Mukund jampala
It now gets vma as the first argme
sing arg 1 of 'remap_page_range_R2baf18f2'
makes pointer from integer without a cast
i810_main.c: 643: incompatible type for argument 4 of
'remap_page_range_R2baf18f2'
i810_main.c: 643: too few arguments to function
'remap_page_range_R2baf18f2'
Make[3]: *** [I810_main.c] Error 1
..
The call to "r
of 'remap_page_range_R2baf18f2'
makes pointer from integer without a cast
i810_main.c: 643: incompatible type for argument 4 of
'remap_page_range_R2baf18f2'
i810_main.c: 643: too few arguments to function
'remap_page_range_R2baf18f2'
Make[3]: *** [I810_main.c] Error 1
..
The call to remap_page_range
..
The call to remap_page_range() is as follows:-
return (io_remap_page_range(vma-vm_start, off, vma-vm_end -
vma-vm_start, vma-vm_page_prot)) ? -EAGAIN : 0;
Please suggest me what could be the problem.
Regards,
Mukund jampala
It now gets vma as the first argment as well as the others.
Cheers,
Dick
Please suggest me what could be the problem.
the problem is that you are using a way way way too old kernel. I
suggest you fix that first
-
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the body of a message to [EMAIL PROTECTED]
More majordomo info at
Hi kernel list readers,
I have a question about the functionality of mmap(), vma->vm_ops functions and
different
vma->vm_flags. Is there any documentation that describes these methods and how they
should
work (i.e when should mmap() use remap_page_range and when is the vma->vm_ops
Hi kernel list readers,
I have a question about the functionality of mmap(), vma-vm_ops functions and
different
vma-vm_flags. Is there any documentation that describes these methods and how they
should
work (i.e when should mmap() use remap_page_range and when is the vma-vm_ops-no_page
remap_page_range(), which needs the
physical address. I CAN still get it from pci_resource_start(), but I'm
thinking I shouldn't.
The authors of the next edition say that you can remap virtual addresses
returned by ioremap, but didn't give an example, and I just can't figure it
out.
2. How do I use
remap_page_range(), which needs the
physical address. I CAN still get it from pci_resource_start(), but I'm
thinking I shouldn't.
The authors of the next edition say that you can remap virtual addresses
returned by ioremap, but didn't give an example, and I just can't figure it
out.
2. How do I use
Linus Torvalds wrote:
...snip...
>
> Anyway, I didn't realize you were talking about the sound drivers use of
> remap_page_range(). That's not the original reason for remap_page_range()
> at all, and in fact it's the _ugly_ way to do things. It's simple and it
> works, but
Linus Torvalds wrote:
...snip...
Anyway, I didn't realize you were talking about the sound drivers use of
remap_page_range(). That's not the original reason for remap_page_range()
at all, and in fact it's the _ugly_ way to do things. It's simple and it
works, but it's not pretty.
Quite
Hello,
>
> >suppose i allocate an buffer by calling kmalloc.
>
> >i want to map this buffer to user address space.
> >will remap_page_range will automatically map this
> >buffer to calling process's address space.
>
> it should do if have the struct v
Hello,
suppose i allocate an buffer by calling kmalloc.
i want to map this buffer to user address space.
will remap_page_range will automatically map this
buffer to calling process's address space.
it should do if have the struct vm_area_struct of the calling process.
as far as i
>suppose i allocate an buffer by calling kmalloc.
>i want to map this buffer to user address space.
>will remap_page_range will automatically map this
>buffer to calling process's address space.
it should do if have the struct vm_area_struct of the calling process.
as far as i
Hi,
suppose i allocate an buffer by calling kmalloc.
i want to map this buffer to user address space.
will remap_page_range will automatically map this
buffer to calling process's address space.
thanks.
__
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Hi,
suppose i allocate an buffer by calling kmalloc.
i want to map this buffer to user address space.
will remap_page_range will automatically map this
buffer to calling process's address space.
thanks.
__
Do You Yahoo!?
Yahoo! Messenger - Talk
Thanx for the answer.
> You can only remap reserved or I/O space
> Read drivers/sound a bit - it has code that allocates, reserves and remaps
> memory
Oh, now I see why I found so many references to
remap_page_range() in sound cards code. But there is still
something that seems odd
Thanx for the answer.
You can only remap reserved or I/O space
Read drivers/sound a bit - it has code that allocates, reserves and remaps
memory
Oh, now I see why I found so many references to
remap_page_range() in sound cards code. But there is still
something that seems odd to me:
1
> Is remap_page_range working properly?
Probably
> But the code in remap_pte_range() seems to behave exactly in the opposite
> way; as far as I can see, it sets to null every page, _except_ "references
> to nonexistent pages"! Here are the relevant lines of code take
Is remap_page_range working properly?
Keywords: memory management, kernel, /dev/mem, memory mapping
Version: Verified in Linux version 2.0.32 ([EMAIL PROTECTED])
(gcc version 2.7.2.3) #1 Wed Nov 19 00:46:45 EST 1997
But spotted also in the code of kernel 2.2.17 and 2.4.0-test1
Description
Is remap_page_range working properly?
Probably
But the code in remap_pte_range() seems to behave exactly in the opposite
way; as far as I can see, it sets to null every page, _except_ "references
to nonexistent pages"! Here are the relevant lines of code taken from
kernel 2.0.32
Hello.
I am trying to mmap a frame buffer device (which I wrote) and it
doesn't seem to work. I verified the address - it appears OK.
However, whatever I write out to the address from my userland program,
the bits appear to go into the bit bucket.
I am trying to figure out remap_page_range
Hello.
I am trying to mmap a frame buffer device (which I wrote) and it
doesn't seem to work. I verified the address - it appears OK.
However, whatever I write out to the address from my userland program,
the bits appear to go into the bit bucket.
I am trying to figure out remap_page_range
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