Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops

From: David Newall <david@xxxxxxxxxxxxxxx>
Date: Tue, 11 Dec 2007 11:40:23 +1030

Where did the 8us delay come from? The documentation and source is careful not to say how long the delay is. Would changing it to, say 1us, be technically wrong? Is code that requires 8us correct?
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Follow-Ups:
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
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References:
- RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: David P. Reed
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Andi Kleen
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Alan Cox
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Pavel Machek
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Andi Kleen
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Pavel Machek
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Rene Herman
- Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops
  - From: Krzysztof Halasa

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