From: Philip Brown [mailto:[EMAIL PROTECTED]]
I thought that was just from the perspective of the graphics card.
A GART memory mapping is a memory range that is visible from
the grafics card (if on AGP socket) and from the CPU (or CPUs).
The GART memory area is looking just as a PCI card that
On Sun, Dec 23, 2001 at 01:46:56PM -0800, Gareth Hughes wrote:
You return the physical address of the *AGP aperture*, not the first
page *in* the aperture. Remember, the AGP aperture is a
physically-contiguous block of memory that can have scattered pages
mapped into it. Thus, graphics
On Sat, Dec 22, 2001 at 02:30:14AM +0100, Alexander Stohr wrote:
The GART is the paging unit of the AGP system.
It deals nicely with fragmented chunks of page sized
memory chunks. So you only need some sort of memory
allocation and a way to determine eachs pages physical
adress to use it
The GART is the paging unit of the AGP system.
It deals nicely with fragmented chunks of page sized
memory chunks. So you only need some sort of memory
allocation and a way to determine eachs pages physical
adress to use it for those GART purposes.
You just need to ensure that your memory is
However, it does look like AGPIOC_ALLOCATE is broken. It only returns
the -physical field of the resulting agp_memory structure. It doesn't
even look like this field is set for any chipsets other than the i810
and i830.
You don't need anything other than the key. This isn't a general
purpose
On Fri, Dec 21, 2001 at 05:34:43PM -0800, Philip Brown wrote:
On Sat, Dec 22, 2001 at 02:30:14AM +0100, Alexander Stohr wrote:
The GART is the paging unit of the AGP system.
It deals nicely with fragmented chunks of page sized
memory chunks. So you only need some sort of memory
Hi Philip!
Sorry if this is repeat: haven't seen my original show up in 12 hours.
I have a question about what if physical memory is fragmented?
The AGIPIOC_ALLOC call returns a 'physical' address.
Not always. Only if the alloc type 0 (which is chip specific). Otherwise,
you're not
On Fri, Dec 21, 2001 at 04:05:33PM -0800, Philip Brown wrote:
I have a question about what if physical memory is fragmented?
The AGIPIOC_ALLOC call returns a 'physical' address.
This implies that the ALLOC is a single contiguous chunk of physical
memory. Right?
However, I cant imagine that
Daryll Strauss wrote:
On Fri, Dec 21, 2001 at 04:05:33PM -0800, Philip Brown wrote:
I have a question about what if physical memory is fragmented?
The AGIPIOC_ALLOC call returns a 'physical' address.
This implies that the ALLOC is a single contiguous chunk of physical
memory. Right?
On Fri, Dec 21, 2001 at 04:05:33PM -0800, Philip Brown wrote:
I have a question about what if physical memory is fragmented?
The AGIPIOC_ALLOC call returns a 'physical' address.
This implies that the ALLOC is a single contiguous chunk of physical
memory. Right?
However, I cant imagine that
Hi Chris!
I have a question about what if physical memory is fragmented?
The AGIPIOC_ALLOC call returns a 'physical' address.
This implies that the ALLOC is a single contiguous chunk of physical
memory. Right?
However, I cant imagine that it is easy to guarantee 64 megs of
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