Re: 2.4.x jobs (updated)

From: David S. Miller (
Date: Thu Mar 16 2000 - 07:02:54 EST

   Date: Thu, 16 Mar 2000 13:02:57 +0100
   From: Martin Mares <>

      Yes, of course, but first of all I'd like to know what exactly
   the problems are. I dislike creating yet another architecture
   specific function -- I'd prefer to keep the function generic, but
   allow the architecture to set the right constants (either by macros
   in pci.h [which can be defined to call functions if needed, of
   course] or by adding a new entry in struct pci_dev).

In my case for 2.4.x I'm going to need to play "BIOS" on sparc64 and
init all the latency timer (based upon min_gnt, max_latency, and 66MHZ
settings) and cache line size values because the boot firmware doesn't
do it. I want to remove all of the ifdef __sparc__ garbage in PCI
drivers which exists now to accomplish this.

Also for some controllers I know cases where if you set the latency
timer such that PIO's from the host bridge are blocked out for more
than a certain amount of clocks, it can hang the host bridge. I'd
like to be able to control this.

David S. Miller

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