Messages in this thread |  | | Subject | Re: CONFIG_BLK_DEV_SL82C105 should not be PPC/ARM specific | From | Mark Eichin <> | Date | 09 Sep 2001 02:49:20 -0400 |
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That patch (plus bludgeoning the config) certainly *works* on this chipset, but it doesn't get DMA support; logs follow. If I run hdparm to put it into using_dma mode, and then try to access it, using_dma mode gets turned off after some delay...
Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx W82C105: IDE controller on PCI bus 00 dev 10 PCI: No IRQ known for interrupt pin A of device 00:02.0. Probably buggy MP table. W82C105: chipset revision 6 W82C105: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xfcd0-0xfcd7, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xfcd8-0xfcdf, BIOS settings: hdc:DMA, hdd:DMA hda: Maxtor 4W100H6, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: 195711264 sectors (100204 MB) w/2048KiB Cache, CHS=194158/16/63, (U)DMA hda:hda: timeout waiting for DMA ide_dmaproc: chipset supported ide_dma_timeout func only: 14 hda: timeout waiting for DMA ide_dmaproc: chipset supported ide_dma_timeout func only: 14 hda: timeout waiting for DMA ide_dmaproc: chipset supported ide_dma_timeout func only: 14 hda: timeout waiting for DMA ide_dmaproc: chipset supported ide_dma_timeout func only: 14 LDM: DEBUG (ldm.c, 876): validate_partition_table: Found basic MS-DOS partition, not a dynamic disk. hda1 hda2
# hdparm -v /dev/hda
/dev/hda: multcount = 0 (off) I/O support = 0 (default 16-bit) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 63086/16/63, sectors = 195711264, start = 0 # hdparm -t /dev/hda
/dev/hda: Timing buffered disk reads: 64 MB in 57.65 seconds = 1.11 MB/sec # hdparm -v /dev/hda
/dev/hda: multcount = 0 (off) I/O support = 0 (default 16-bit) unmaskirq = 1 (on) using_dma = 0 (off) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 63086/16/63, sectors = 195711264, start = 0 - 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/
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