diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-21 04:43:29 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-21 04:43:29 +0400 |
commit | db6d8c7a4027b48d797b369a53f8470aaeed7063 (patch) | |
tree | e140c104a89abc2154e1f41a7db8ebecbb6fa0b4 /drivers/ssb | |
parent | 3a533374283aea50eab3976d8a6d30532175f009 (diff) | |
parent | fb65a7c091529bfffb1262515252c0d0f6241c5c (diff) | |
download | linux-db6d8c7a4027b48d797b369a53f8470aaeed7063.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits)
iucv: Fix bad merging.
net_sched: Add size table for qdiscs
net_sched: Add accessor function for packet length for qdiscs
net_sched: Add qdisc_enqueue wrapper
highmem: Export totalhigh_pages.
ipv6 mcast: Omit redundant address family checks in ip6_mc_source().
net: Use standard structures for generic socket address structures.
ipv6 netns: Make several "global" sysctl variables namespace aware.
netns: Use net_eq() to compare net-namespaces for optimization.
ipv6: remove unused macros from net/ipv6.h
ipv6: remove unused parameter from ip6_ra_control
tcp: fix kernel panic with listening_get_next
tcp: Remove redundant checks when setting eff_sacks
tcp: options clean up
tcp: Fix MD5 signatures for non-linear skbs
sctp: Update sctp global memory limit allocations.
sctp: remove unnecessary byteshifting, calculate directly in big-endian
sctp: Allow only 1 listening socket with SO_REUSEADDR
sctp: Do not leak memory on multiple listen() calls
sctp: Support ipv6only AF_INET6 sockets.
...
Diffstat (limited to 'drivers/ssb')
-rw-r--r-- | drivers/ssb/Kconfig | 2 | ||||
-rw-r--r-- | drivers/ssb/main.c | 75 | ||||
-rw-r--r-- | drivers/ssb/pci.c | 20 |
3 files changed, 69 insertions, 28 deletions
diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig index cd845b8acd17..307b1f62d949 100644 --- a/drivers/ssb/Kconfig +++ b/drivers/ssb/Kconfig @@ -2,7 +2,7 @@ menu "Sonics Silicon Backplane" config SSB_POSSIBLE bool - depends on HAS_IOMEM + depends on HAS_IOMEM && HAS_DMA default y config SSB diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index d184f2aea78d..d831a2beff39 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -462,18 +462,15 @@ static int ssb_devices_register(struct ssb_bus *bus) #ifdef CONFIG_SSB_PCIHOST sdev->irq = bus->host_pci->irq; dev->parent = &bus->host_pci->dev; - sdev->dma_dev = &bus->host_pci->dev; #endif break; case SSB_BUSTYPE_PCMCIA: #ifdef CONFIG_SSB_PCMCIAHOST sdev->irq = bus->host_pcmcia->irq.AssignedIRQ; dev->parent = &bus->host_pcmcia->dev; - sdev->dma_dev = &bus->host_pcmcia->dev; #endif break; case SSB_BUSTYPE_SSB: - sdev->dma_dev = dev; break; } @@ -1156,36 +1153,82 @@ u32 ssb_dma_translation(struct ssb_device *dev) { switch (dev->bus->bustype) { case SSB_BUSTYPE_SSB: - case SSB_BUSTYPE_PCMCIA: return 0; case SSB_BUSTYPE_PCI: return SSB_PCI_DMA; + default: + __ssb_dma_not_implemented(dev); } return 0; } EXPORT_SYMBOL(ssb_dma_translation); -int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask) +int ssb_dma_set_mask(struct ssb_device *dev, u64 mask) { - struct device *dma_dev = ssb_dev->dma_dev; - int err = 0; + int err; -#ifdef CONFIG_SSB_PCIHOST - if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI) { - err = pci_set_dma_mask(ssb_dev->bus->host_pci, mask); + switch (dev->bus->bustype) { + case SSB_BUSTYPE_PCI: + err = pci_set_dma_mask(dev->bus->host_pci, mask); if (err) return err; - err = pci_set_consistent_dma_mask(ssb_dev->bus->host_pci, mask); + err = pci_set_consistent_dma_mask(dev->bus->host_pci, mask); return err; + case SSB_BUSTYPE_SSB: + return dma_set_mask(dev->dev, mask); + default: + __ssb_dma_not_implemented(dev); } -#endif - dma_dev->coherent_dma_mask = mask; - dma_dev->dma_mask = &dma_dev->coherent_dma_mask; - - return err; + return -ENOSYS; } EXPORT_SYMBOL(ssb_dma_set_mask); +void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp_flags) +{ + switch (dev->bus->bustype) { + case SSB_BUSTYPE_PCI: + if (gfp_flags & GFP_DMA) { + /* Workaround: The PCI API does not support passing + * a GFP flag. */ + return dma_alloc_coherent(&dev->bus->host_pci->dev, + size, dma_handle, gfp_flags); + } + return pci_alloc_consistent(dev->bus->host_pci, size, dma_handle); + case SSB_BUSTYPE_SSB: + return dma_alloc_coherent(dev->dev, size, dma_handle, gfp_flags); + default: + __ssb_dma_not_implemented(dev); + } + return NULL; +} +EXPORT_SYMBOL(ssb_dma_alloc_consistent); + +void ssb_dma_free_consistent(struct ssb_device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + gfp_t gfp_flags) +{ + switch (dev->bus->bustype) { + case SSB_BUSTYPE_PCI: + if (gfp_flags & GFP_DMA) { + /* Workaround: The PCI API does not support passing + * a GFP flag. */ + dma_free_coherent(&dev->bus->host_pci->dev, + size, vaddr, dma_handle); + return; + } + pci_free_consistent(dev->bus->host_pci, size, + vaddr, dma_handle); + return; + case SSB_BUSTYPE_SSB: + dma_free_coherent(dev->dev, size, vaddr, dma_handle); + return; + default: + __ssb_dma_not_implemented(dev); + } +} +EXPORT_SYMBOL(ssb_dma_free_consistent); + int ssb_bus_may_powerdown(struct ssb_bus *bus) { struct ssb_chipcommon *cc; diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c index 57c4ccfab1ee..f883dcfffe06 100644 --- a/drivers/ssb/pci.c +++ b/drivers/ssb/pci.c @@ -510,17 +510,15 @@ static int ssb_pci_sprom_get(struct ssb_bus *bus, sprom_do_read(bus, buf); err = sprom_check_crc(buf, bus->sprom_size); if (err) { - /* check for rev 4 sprom - has special signature */ - if (buf[32] == 0x5372) { - kfree(buf); - buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), - GFP_KERNEL); - if (!buf) - goto out; - bus->sprom_size = SSB_SPROMSIZE_WORDS_R4; - sprom_do_read(bus, buf); - err = sprom_check_crc(buf, bus->sprom_size); - } + /* try for a 440 byte SPROM - revision 4 and higher */ + kfree(buf); + buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), + GFP_KERNEL); + if (!buf) + goto out; + bus->sprom_size = SSB_SPROMSIZE_WORDS_R4; + sprom_do_read(bus, buf); + err = sprom_check_crc(buf, bus->sprom_size); if (err) ssb_printk(KERN_WARNING PFX "WARNING: Invalid" " SPROM CRC (corrupt SPROM)\n"); |