As the final step in configuraing bus-master DMA, consult the boolean device
property "pciide-disable-dma" and disable bus-master DMA if that property is present and true.
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parent
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@ -1,4 +1,4 @@
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/* $NetBSD: pciide_common.c,v 1.70 2023/11/20 21:59:38 thorpej Exp $ */
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/* $NetBSD: pciide_common.c,v 1.71 2024/03/31 18:59:52 thorpej Exp $ */
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/*
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/*
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@ -70,7 +70,7 @@
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*/
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*/
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#include <sys/cdefs.h>
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pciide_common.c,v 1.70 2023/11/20 21:59:38 thorpej Exp $");
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__KERNEL_RCSID(0, "$NetBSD: pciide_common.c,v 1.71 2024/03/31 18:59:52 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/param.h>
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@ -484,6 +484,16 @@ pciide_mapreg_dma(struct pciide_softc *sc, const struct pci_attach_args *pa)
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aprint_verbose(
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aprint_verbose(
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", but unused (forced off by config file)");
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", but unused (forced off by config file)");
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sc->sc_dma_ok = 0;
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sc->sc_dma_ok = 0;
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} else {
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bool disable;
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if (prop_dictionary_get_bool(
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device_properties(sc->sc_wdcdev.sc_atac.atac_dev),
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"pciide-disable-dma", &disable) && disable) {
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aprint_verbose(
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", but unused (disabled by platform)");
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sc->sc_dma_ok = 0;
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}
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}
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}
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break;
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break;
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