Hi there,
Have an old Thinkpad 365X laptop that 'hdparm -i' tells me is
running mdma2 but it refuses to set dma mode. 2.6.16.18 also
refuses to set dma.
With 2.432-hf32.6 running 'hdparm -c 1 /dev/hda' speeds up the
IDE interface from ~5MB/s to ~7.5MB/s for a reading an unmounted
500MB partition to /dev/null.
Is there something I forgot to do to get DMA operation, or this
one of those early PIIX that Alan is doing new drivers for?
I've yet to try development kernels since udev/pcmciautils not
setup on the thing (yet).
Comment stripped .config and dmesg for 2.4, 2.6 at:
<http://bugsplatter.mine.nu/test/boxen/hal/>
Thanks,
Grant.
appended:
dmesg excerpt
IDE config
uname -r
hdparm -v /dev/hda
lspci -vvvx
/proc/interrupts
/proc/dma
dmesg:
...
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIXa: IDE controller at PCI slot 00:01.0
PIIXa: chipset revision 2
PIIXa: not 100% native mode: will probe irqs later
PIIXa: neither IDE port enabled (BIOS)
hda: TOSHIBA MK6014MAP, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 11733120 sectors (6007 MB), CHS=776/240/63
Partition check:
hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
2.4 IDE settings:
-------------------- IDE, ATA and ATAPI Block devices ------------------
<*> Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
--- Please see Documentation/ide.txt for help/info on IDE drives
[ ] Use old disk-only driver on primary interface
[ ] Support for SATA (deprecated; conflicts with libata SATA driver)
<*> Include IDE/ATA-2 DISK support
[ ] Use multi-mode by default
[ ] Auto-Geometry Resizing support
<M> PCMCIA IDE support <<== for CompactFlash (/dev/hdc)
< > Cardbus IDE support (Delkin/ASKA/Workbit)
< > Include IDE/ATAPI CDROM support
< > Include IDE/ATAPI TAPE support
< > Include IDE/ATAPI FLOPPY support
[ ] IDE Taskfile Access
--- IDE chipset support/bugfixes
[ ] CMD640 chipset bugfix/support
[ ] ISA-PNP EIDE support
[*] PCI IDE chipset support
[ ] Generic PCI IDE Chipset Support <<== on/off: no difference
[ ] Sharing PCI IDE interrupts support
[*] Generic PCI bus-master DMA support
[ ] Boot off-board chipsets first support
[ ] Force enable legacy 2.0.X HOSTS to use DMA
[*] Use PCI DMA by default when available
[ ] Enable DMA only for disks
... (in between off)
<*> Intel PIIXn chipsets support
... (rest are off)
root@stinkpad:~# uname -r
2.4.32-hf32.6
root@stinkpad:~# hdparm -v /dev/hda
/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 776/240/63, sectors = 11733120, start = 0
root@stinkpad:~# hdparm -X mdma2 -d 1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted
setting xfermode to 34 (multiword DMA mode2)
using_dma = 0 (off)
root@stinkpad:~# lspci -vvvx
00:00.0 Host bridge: Intel Corporation 430MX - 82437MX Mob. System Ctrlr (MTSC) & 82438MX Data Path (MTDP) (rev 02)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 32
00: 86 80 35 12 06 00 00 22 02 00 00 06 00 20 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:01.0 ISA bridge: Intel Corporation 82371FB PIIX ISA [Triton I] (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00: 86 80 2e 12 07 00 80 02 02 00 01 06 00 00 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:03.0 VGA compatible controller: Trident Microsystems TGUI 9320 (rev e3) (prog-if 00 [VGA])
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 0
Region 0: Memory at 08000000 (32-bit, non-prefetchable) [size=2M]
Region 1: Memory at 08200000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at 000c0000 [disabled] [size=64K]
00: 23 10 20 93 03 00 00 02 e3 00 00 03 00 00 00 00
10: 00 00 00 08 00 00 20 08 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 0c 00 00 00 00 00 00 00 00 00 00 01 00 00
root@stinkpad:~# cat /proc/interrupts
CPU0
0: 106675 XT-PIC timer
1: 3 XT-PIC keyboard
2: 0 XT-PIC cascade
9: 490 XT-PIC xirc2ps_cs
12: 3 XT-PIC PS/2 Mouse
14: 3820 XT-PIC ide0
15: 4 XT-PIC i82365
NMI: 0
ERR: 0
root@stinkpad:~# cat /proc/dma
4: cascade
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