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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-02 19:56:40 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-02 19:56:40 +0100 |
| commit | 807b90d0be23b8d088d4369b02539dada70f03f4 (patch) | |
| tree | 422895c1232715ba04957fd993579c0d768fd6fd /include/linux/ide.h | |
| parent | 7704ca2a3ee4b3690c5dcc99ea4f8dcf10d7bbdb (diff) | |
| download | lwn-807b90d0be23b8d088d4369b02539dada70f03f4.tar.gz lwn-807b90d0be23b8d088d4369b02539dada70f03f4.zip | |
ide: add IDE_HFLAG_NO_{IO32_BIT,UNMASK_IRQS} host flags
* Use the same bit for IDE_HFLAG_CS5520 and IDE_HFLAG_VDMA host flags
(both are used only by cs5520 host driver currently).
* Add IDE_HFLAG_NO_IO32_BIT host flag and use it instead of ->no_io_32bit
ide_hwif_t field.
* Add IDE_HFLAG_NO_UNMASK_IRQS host flag, then convert dtc2278 and rz1000
host drivers to use it.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/ide.h')
| -rw-r--r-- | include/linux/ide.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 04422e5e6dd8..7b24358a6f8a 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -607,7 +607,6 @@ typedef struct hwif_s { unsigned reset : 1; /* reset after probe */ unsigned auto_poll : 1; /* supports nop auto-poll */ unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */ - unsigned no_io_32bit : 1; /* 1 = can not do 32-bit IO ops */ unsigned mmio : 1; /* host uses MMIO */ struct device gendev; @@ -1065,7 +1064,7 @@ enum { IDE_HFLAG_NO_SET_MODE = (1 << 9), /* trust BIOS for programming chipset/device for DMA */ IDE_HFLAG_TRUST_BIOS_FOR_DMA = (1 << 10), - /* host uses VDMA */ + /* host uses VDMA (tied with IDE_HFLAG_CS5520 for now) */ IDE_HFLAG_VDMA = (1 << 11), /* ATAPI DMA is unsupported */ IDE_HFLAG_NO_ATAPI_DMA = (1 << 12), @@ -1075,8 +1074,10 @@ enum { IDE_HFLAG_NO_DMA = (1 << 14), /* check if host is PCI IDE device before allowing DMA */ IDE_HFLAG_NO_AUTODMA = (1 << 15), + /* don't autotune PIO */ + IDE_HFLAG_NO_AUTOTUNE = (1 << 16), /* host is CS5510/CS5520 */ - IDE_HFLAG_CS5520 = (1 << 16), + IDE_HFLAG_CS5520 = IDE_HFLAG_VDMA, /* no LBA48 */ IDE_HFLAG_NO_LBA48 = (1 << 17), /* no LBA48 DMA */ @@ -1102,8 +1103,10 @@ enum { IDE_HFLAG_CLEAR_SIMPLEX = (1 << 28), /* DSC overlap is unsupported */ IDE_HFLAG_NO_DSC = (1 << 29), - /* don't autotune PIO */ - IDE_HFLAG_NO_AUTOTUNE = (1 << 30), + /* never use 32-bit I/O ops */ + IDE_HFLAG_NO_IO_32BIT = (1 << 30), + /* never unmask IRQs */ + IDE_HFLAG_NO_UNMASK_IRQS = (1 << 31), }; #ifdef CONFIG_BLK_DEV_OFFBOARD |