ISTR sparc64 used bits in the physaddr_t for frambuffer mappings.
If so it is well hidden (bus_space_map with LINEAR is used, but AFAICT that
does nothing special to the uvm page).
Thanks for clarification. Even if something abuses phys_addr, it should be
easily fixed.
I'll commit the
On Feb 6, 2010, at 4:20 AM, Masao Uebayashi wrote:
This kills phys_addr member at all. I don't think UVM_PAGE_TO_PHYS() is
called often. If we need performance, we should probably vectorize this
operation, like:
struct vm_page *pgs[16];
paddr_t pas[16];
Well, i need phys_addr for VM_MDPAGE_INIT to set the initial color of a page
but
that could be a second parameter to it.
My concern is that if you have several vm_physseg then finding the right could
be expensive. Or are we going to sort vm_physmem by increasing pa (and then
we
could
On Wed, Feb 03, 2010 at 03:20:36AM +0900, Masao Uebayashi wrote:
As I briefly mentioned before, I'll need device page to support XIP. It's
a struct vm_page *, which is actually a magic value which conveys data from
pgo_get() to pmap_enter().
What's pgo_get()? Since you seem to be immersed
On Sun, 7 Feb 2010, Masao Uebayashi wrote:
This will break mchines that store additional information such as
cacheing in the physaddr_t.
Could you be more specific? The only instance accessing phys_addr member I
can find is:
sys/arch/arm/include/arm32/vmparam.h:
On Feb 2, 2010, at 10:20 AM, Masao Uebayashi wrote:
As I briefly mentioned before, I'll need device page to support XIP. It's
a struct vm_page *, which is actually a magic value which conveys data from
pgo_get() to pmap_enter().
When a device page is pmap_enter()'ed, pmap checks if it's
On Feb 2, 2010, at 4:13 PM, YAMAMOTO Takashi wrote:
On Feb 2, 2010, at 10:20 AM, Masao Uebayashi wrote:
As I briefly mentioned before, I'll need device page to support XIP. It's
a struct vm_page *, which is actually a magic value which conveys data from
pgo_get() to pmap_enter().
When
