Hi,
http://www.ussg.iu.edu/hypermail/linux/kernel/0209.1/1074.html
Jens, is this still true??
Bartlomiej
On 8/7/05, Kyle McMartin <[EMAIL PROTECTED]> wrote:
> Ahoi,
>
> The following patch fixes a crash caused by attempting to bounce buffer
> when an IDE CD-ROM is used on a machine with an IO-MMU. [At least, this
> patch fixes things so I can use my IDE CD-ROM behind an ns87415 on a
> HP PA-RISC workstation.]
>
> Why was this only allowed for disks?
>
> --- a/drivers/ide/ide-lib.c 18 Jul 2005 18:46:30 -0000
> +++ b/drivers/ide/ide-lib.c 6 Aug 2005 20:28:04 -0000
> @@ -410,7 +410,7 @@ void ide_toggle_bounce(ide_drive_t *driv
> {
> u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
>
> - if (on && drive->media == ide_disk) {
> + if (on) {
> if (!PCI_DMA_BUS_IS_PHYS)
> addr = BLK_BOUNCE_ANY;
> else if (HWIF(drive)->pci_dev)
>
> Cheers,
> --
> Kyle McMartin
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