* insl/outsl in parport_pc and !CONFIG_PCI
@ 2001-05-27 17:16 Richard Zidlicky
2001-05-29 0:11 ` Jamie Lokier
0 siblings, 1 reply; 3+ messages in thread
From: Richard Zidlicky @ 2001-05-27 17:16 UTC (permalink / raw)
To: tim, linux-kernel
Hi,
How is that supposed to work on systems without PCI? For now I have
defined
#define insl(port,buf,len) isa_insb(port,buf,(len)<<2)
#define outsl(port,buf,len) isa_outsb(port,buf,(len)<<2)
in asm-m68k/parport.h.
Bye
Richard
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: insl/outsl in parport_pc and !CONFIG_PCI
2001-05-27 17:16 insl/outsl in parport_pc and !CONFIG_PCI Richard Zidlicky
@ 2001-05-29 0:11 ` Jamie Lokier
2001-05-31 11:06 ` Tim Waugh
0 siblings, 1 reply; 3+ messages in thread
From: Jamie Lokier @ 2001-05-29 0:11 UTC (permalink / raw)
To: Richard Zidlicky, tim, linux-kernel, Fred Barnes
Richard Zidlicky wrote:
> How is that supposed to work on systems without PCI? For now I have
> defined
>
> #define insl(port,buf,len) isa_insb(port,buf,(len)<<2)
> #define outsl(port,buf,len) isa_outsb(port,buf,(len)<<2)
Tim, Fred,
Will 4 * inb() cycles have the same effect as 1 * inl() cycle for an EPP
mode read?
By the way, it's probably worth a check whether insl() is actually
faster than a loop doing inl() these days. Guess I should do that :)
cheers,
-- Jamie
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: insl/outsl in parport_pc and !CONFIG_PCI
2001-05-29 0:11 ` Jamie Lokier
@ 2001-05-31 11:06 ` Tim Waugh
0 siblings, 0 replies; 3+ messages in thread
From: Tim Waugh @ 2001-05-31 11:06 UTC (permalink / raw)
To: Jamie Lokier; +Cc: Richard Zidlicky, tim, linux-kernel, Fred Barnes
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On Tue, May 29, 2001 at 02:11:56AM +0200, Jamie Lokier wrote:
> Will 4 * inb() cycles have the same effect as 1 * inl() cycle for an EPP
> mode read?
4 inb() cycles on the same port, yes, I think so (but not on
successive ports).
Tim.
*/
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2001-05-27 17:16 insl/outsl in parport_pc and !CONFIG_PCI Richard Zidlicky
2001-05-29 0:11 ` Jamie Lokier
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