Jason Thorpe has a committed a fix for systems
with the Cypress IDE controller so that they can
actually use ISA DMA with the first controller.

pciide0 at pci0 dev 8 function 1: Cypress CY82C693 IDE Controller (rev. 0x00)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
wd0 at pciide0 channel 0 drive 0: <QUANTUM FIREBALL SE8.4A>
wd0: drive supports 16-sector pio transfers, lba addressing
wd0: 8063 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 16514064 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2
wd1 at pciide0 channel 0 drive 1: <IBM-DPTA-353750>
wd1: drive supports 16-sector pio transfers, lba addressing
wd1: 35772 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 73261440 sectors
wd1: 32-bit data port
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4
pciide0: primary channel interrupting at isa irq 14
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2 (using DMA data transfers)
wd1(pciide0:0:1): using PIO mode 4, DMA mode 2 (using DMA data transfers)

Coming soon to an anoncvs or sup server near you...
--
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message