Hi Finn,

Am 29.01.2022 um 12:55 schrieb Finn Thain:

On Sat, 29 Jan 2022, Michael Schmitz wrote:

quoted

Hi Geert,

for hwregs_present(), the exception fixup will handle any access error
(through send_fault_sig()), so this should continue to work.

Why the special handling of VM_IO pages? Maybe hp300 had marked all IO
register pages VM_IO to distinguish IO faults from VM faults...

The only other area I can imagine this might have an impact is the Mac's
pseudo-DMA - FInn might want to give this some testing.

mac_scsi.c and mac_esp.c don't use ioremap(). They rely on head.S:

        mmu_map_eq      #0x50000000,#0x03000000,%d3

Having said that, I will run some tests if you still think it necessary.

No need for test then, thanks!

Cheers,

	Michael