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| author | James Bottomley <James.Bottomley@steeleye.com> | 2005-08-30 11:48:07 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-09-13 14:24:48 -0500 |
| commit | a89f29f6ea8dba0b7c4ae5d1d0b43de6cb500ea6 (patch) | |
| tree | 66e7c34459c41b4ade0d202258184fb2df84e907 /drivers/scsi/aic7xxx | |
| parent | 154fb614df83086ceb18a2c19908154e78d4dc98 (diff) | |
| download | kernel_samsung_smdk4412-a89f29f6ea8dba0b7c4ae5d1d0b43de6cb500ea6.tar.gz kernel_samsung_smdk4412-a89f29f6ea8dba0b7c4ae5d1d0b43de6cb500ea6.tar.bz2 kernel_samsung_smdk4412-a89f29f6ea8dba0b7c4ae5d1d0b43de6cb500ea6.zip | |
[SCSI] aic7xxx: move to dma_get_required_mask() and correct 39 bit assumptions
This patch moves aic7xxx over to the dma_get_required_mask() API and
dumps its open coded memory check.
It also appears from this bug:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=167049
That 39 bit addressing doesn't work on older cards. I surmise that the
AHC_LARGE_SCBS flag is the one that marks cards capable of using 39 bit
addressing, so I also folded that check into the code.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic7xxx')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.h | 2 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 8 |
3 files changed, 5 insertions, 14 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index c932b3b9449..876d1de8480 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -1109,15 +1109,6 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa return (0); } -uint64_t -ahc_linux_get_memsize(void) -{ - struct sysinfo si; - - si_meminfo(&si); - return ((uint64_t)si.totalram << PAGE_SHIFT); -} - /* * Place the SCSI bus into a known state by either resetting it, * or forcing transfer negotiations on the next command to any diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index c5299626924..be9edbe26db 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -494,8 +494,6 @@ ahc_insb(struct ahc_softc * ahc, long port, uint8_t *array, int count) int ahc_linux_register_host(struct ahc_softc *, struct scsi_host_template *); -uint64_t ahc_linux_get_memsize(void); - /*************************** Pretty Printing **********************************/ struct info_str { char *buffer; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index 0d44a6907dd..3ce77ddc889 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -180,6 +180,7 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) struct ahc_pci_identity *entry; char *name; int error; + struct device *dev = &pdev->dev; pci = pdev; entry = ahc_find_pci_device(pci); @@ -209,11 +210,12 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); if (sizeof(dma_addr_t) > 4 - && ahc_linux_get_memsize() > 0x80000000 - && pci_set_dma_mask(pdev, mask_39bit) == 0) { + && ahc->features & AHC_LARGE_SCBS + && dma_set_mask(dev, mask_39bit) == 0 + && dma_get_required_mask(dev) > DMA_32BIT_MASK) { ahc->flags |= AHC_39BIT_ADDRESSING; } else { - if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { + if (dma_set_mask(dev, DMA_32BIT_MASK)) { printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n"); return (-ENODEV); } |