Re: how to get virtual address from dma address

• Next message: Trever L. Adams: "Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5"
• Previous message: Bert Meijs: "keyboard not detected krnl v2.4.10"
• In reply to: BALBIR SINGH: "Re: how to get virtual address from dma address"
• Next in thread: James Bottomley: "Re: how to get virtual address from dma address"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

   From: "BALBIR SINGH" <balbir.singh@wipro.com>
   Date: Thu, 04 Oct 2001 15:41:08 +0530

   With Rik's reverse mapping patch, wouldn't we have the virtual address for the given
   physical address ? I have no clue about how the patch works, somebody willing to explain
   it?
   
Rik's work is for user process PTEs, we're talking about IOMMU PTEs on
PCI controllers used to map the 32-bit PCI address space to the (often
larger) physical address space of main memory.

These two PTE types are totally unrelated.

Franks a lot,
David S. Miller
davem@redhat.com
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

• Next message: Trever L. Adams: "Re: [announce] [patch] limiting IRQ load, irq-rewrite-2.4.11-B5"
• Previous message: Bert Meijs: "keyboard not detected krnl v2.4.10"
• In reply to: BALBIR SINGH: "Re: how to get virtual address from dma address"
• Next in thread: James Bottomley: "Re: how to get virtual address from dma address"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Sun Oct 07 2001 - 21:00:32 EST