Searched hist:d92e74d3 (Results 1 – 3 of 3) sorted by relevance
/openbmc/linux/drivers/ata/ |
H A D | libata-sff.c | d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA
The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence.
In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this.
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence. In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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H A D | libata-core.c | d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA
The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence.
In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this.
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence. In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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/openbmc/linux/include/linux/ |
H A D | libata.h | d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA
The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence.
In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this.
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> d92e74d3 Thu Jun 07 10:19:15 CDT 2007 Alan Cox <alan@lxorguk.ukuu.org.uk> libata-core/sff: Fix multiple assumptions about DMA The ata IRQ ack functions are only used when debugging. Unfortunately almost every controller that calls them can cause crashes in some configurations as there are missing checks for bmdma presence. In addition ata_port_start insists of installing DMA buffers and pad buffers for controllers regardless. The SFF controllers actually need to make that decision dynamically at controller setup time and all need the same helper - so we add ata_sff_port_start. Future patches will switch the SFF drivers to use this. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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