Dear all,

I have lost DMA support, and cannot enable it. I started with Slackware 10.1 and the 2.4.xx kernel which supported DMA on my machine no problem. I then upgraded my kernel to 2.6.10 (from The Linux Kernel Archives) and now what ever options I try to compile I cannot get DMA support. Every time I get...

bash-3.00# hdparm -d1 /dev/hda

/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)

The machine is a HP 4010nc laptop, the IDE chipset is...

IDE interface: ALi Corporation M5229 IDE (rev c4)

Any ideas, please help as performance is not very good as you can see....

bash-3.00# hdparm -Tt /dev/hda

/dev/hda:
Timing cached reads: 1224 MB in 2.00 seconds = 611.48 MB/sec
Timing buffered disk reads: 10 MB in 3.44 seconds = 2.91 MB/sec


Below is hopefully lots of relevant details. Thanks in advance,

Hagar

Full details...

bash-3.00# hdparm /dev/hda

/dev/hda:
multcount = 0 (off)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 16383/255/63, sectors = 60011642880, start = 0

bash-3.00# hdparm -Tt /dev/hda

/dev/hda:
Timing cached reads: 1224 MB in 2.00 seconds = 611.48 MB/sec
Timing buffered disk reads: 10 MB in 3.44 seconds = 2.91 MB/sec

bash-3.00# hdparm -d1 /dev/hda

/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
using_dma = 0 (off)

bash-3.00# hdparm -V
hdparm v5.8


# ATA/ATAPI/MFM/RLL support

#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
# CONFIG_IDEDISK_MULTI_MODE is not set
# CONFIG_BLK_DEV_IDECS is not set
CONFIG_BLK_DEV_IDECD=m
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_IDEDMA_ONLYDISK=y
# CONFIG_BLK_DEV_AEC62XX is not set
CONFIG_BLK_DEV_ALI15X3=y
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_SC1200 is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
CONFIG_IDE_CHIPSETS=y

#
# Note: most of these also require special kernel boot parameters
#
# CONFIG_BLK_DEV_4DRIVES is not set
CONFIG_BLK_DEV_ALI14XX=y
# CONFIG_BLK_DEV_DTC2278 is not set
# CONFIG_BLK_DEV_HT6560B is not set
# CONFIG_BLK_DEV_QD65XX is not set
# CONFIG_BLK_DEV_UMC8672 is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
CONFIG_IDEDMA_AUTO=y
# CONFIG_BLK_DEV_HD is not set



00:00.0 Host bridge: ATI Technologies Inc: Unknown device cbb2 (rev 02)
Flags: bus master, 66Mhz, medium devsel, latency 64
Memory at 9c000000 (32-bit, prefetchable) [size=64M]
Memory at 98500000 (32-bit, prefetchable) [size=4K]
Capabilities: [a0] AGP version 2.0

00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M] (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, medium devsel, latency 99
Bus: primary=00, secondary=01, subordinate=01, sec-latency=66
I/O behind bridge: 00002000-00002fff
Memory behind bridge: 90000000-900fffff
Prefetchable memory behind bridge: 94000000-97ffffff

00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link Controller Audio Device (rev 02)
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at 3000 [size=256]
Memory at 98100000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2

00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV]
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 0
Capabilities: [a0] Power Management version 1

00:08.0 Modem: ALi Corporation Intel 537 [M5457 AC-Link Modem] (prog-if 00 [Generic])
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 11
Memory at 98180000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 3400 [size=256]
Capabilities: [40] Power Management version 2

00:09.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01)
Subsystem: Compaq Computer Corporation: Unknown device 00e5
Flags: bus master, medium devsel, latency 168, IRQ 5
Memory at 98080000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [44] Power Management version 2

00:0b.0 CardBus bridge: O2 Micro, Inc.: Unknown device 7114 (rev 20)
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, stepping, slow devsel, latency 64, IRQ 11
Memory at 98200000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=02, subordinate=05, sec-latency=176
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0001

00:0b.1 CardBus bridge: O2 Micro, Inc.: Unknown device 7114 (rev 20)
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, stepping, slow devsel, latency 64, IRQ 11
Memory at 98280000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=06, subordinate=09, sec-latency=176
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0001

00:0b.2 System peripheral: O2 Micro, Inc.: Unknown device 7110
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: slow devsel, IRQ 11
Memory at 98300000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [a0] Power Management version 2

00:10.0 IDE interface: ALi Corporation M5229 IDE (rev c4) (prog-if ea)
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 10
I/O ports at 3800 [size=16]
Capabilities: [60] Power Management version 2

00:11.0 Bridge: ALi Corporation M7101 PMU
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: medium devsel

00:12.0 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at 98380000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2

00:12.1 USB Controller: NEC Corporation USB (rev 43) (prog-if 10 [OHCI])
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at 98400000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [40] Power Management version 2

00:12.2 USB Controller: NEC Corporation USB 2.0 (rev 04) (prog-if 20 [EHCI])
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at 98480000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2

00:13.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705M Gigabit Ethernet (rev 03)
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 10
Memory at 98000000 (64-bit, non-prefetchable) [size=64K]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [48] Power Management version 2
Capabilities: [50] Vital Product Data
Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/3 Enable-

01:05.0 VGA compatible controller: ATI Technologies Inc Radeon IGP 340M (prog-if 00 [VGA])
Subsystem: Compaq Computer Corporation: Unknown device 005a
Flags: bus master, stepping, 66Mhz, medium devsel, latency 64, IRQ 10
Memory at 94000000 (32-bit, prefetchable) [size=64M]
I/O ports at 2000 [size=256]
Memory at 90000000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [58] AGP version 2.0
Capabilities: [50] Power Management version 2