Messages in this thread | | | Date | Mon, 29 Jul 2002 01:06:02 +0200 | From | Kasper Dupont <> | Subject | Re: Linux 2.4.19-rc1-ac5 |
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After many hours of trial and error I came to the conclusion, that the problem must be in these lines in the file drivers/ide/alim15x3.c
#ifdef CONFIG_BLK_DEV_IDEDMA if (m5229_revision >= 0x20) { /* * M1543C or newer for DMAing */ hwif->dmaproc = &ali15x3_dmaproc; #ifdef CONFIG_IDEDMA_AUTO if (!noautodma) hwif->autodma = 1; #endif /* CONFIG_IDEDMA_AUTO */ } #endif /* CONFIG_BLK_DEV_IDEDMA */
CONFIG_IDEDMA_AUTO will always be turned off by make *config, but if I enable this option by changing .config with a texteditor DMA actually works.
This makes me ask the following questions?
1) Why can't CONFIG_IDEDMA_AUTO be enabled from make *config?
2) What would it take to fix that?
3) How come DMA works fine with autodma=1, but hdparm -d1 /dev/hda fails?
-- Kasper Dupont -- der bruger for meget tid på usenet. For sending spam use mailto:razrep@daimi.au.dk or mailto:mcxumhvenwblvtl@skrammel.yaboo.dk - 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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