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* ssb: Fix DMA-API compilation for non-PCI systemsMichael Buesch2008-11-10
| | | | | | | This fixes compilation of the SSB DMA-API code on non-PCI platforms. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* dma-mapping: add the device argument to dma_mapping_error()FUJITA Tomonori2008-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ssb: Include dma-mapping.hMichael Buesch2008-07-14
| | | | | | | | | ssb.h implements DMA mapping functions, so it should include dma-mapping.h. This fixes compile failures on certain architectures. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb, b43, b43legacy, b44: Rewrite SSB DMA APIMichael Buesch2008-06-27
| | | | | | | | | | | This is a rewrite of the DMA API for SSB devices. This is needed, because the old (non-existing) "API" made too many bad assumptions on the API of the host-bus (PCI). This introduces an almost complete SSB-DMA-API that maps to the lowlevel bus-API based on the bustype. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Merge branch 'master' of ↵David S. Miller2008-04-18
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * ssb: Fix usage of struct device used for DMAingMichael Buesch2008-04-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes DMA on architectures where DMA is nontrivial, like PPC64. We must use the host-device's (PCI) struct device for any DMA operation instead of the SSB device. For this we add a new struct device pointer to the SSB device structure that will always point to the right device for DMAing. Without this patch b43 and b44 drivers won't work on complex-DMA architectures, that for example need dev->archdata for DMA operations. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ssb: Add support for block-I/OMichael Buesch2008-04-08
| | | | | | | | | | | | | | | | | | | | | | This adds support for block based I/O to SSB. This is needed in order to efficiently support PIO data transfers to the card. The block-I/O support is only compiled, if it's selected by the weird driver that needs it. So there's no overhead for sane devices. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ssb: Turn suspend/resume upside downMichael Buesch2008-04-08
| | | | | | | | | | | | | | | | | | Turn the SSB bus suspend mechanism upside down. Instead of deciding by an internal reference count when to suspend/resume, let the parent bus call us in their suspend/resume routine. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ssb: Add SPROM/invariants support for PCMCIA devicesMichael Buesch2008-03-13
| | | | | | | | | | | | | | | | This adds support for reading/writing the SPROM invariants for PCMCIA based devices. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ssb: Add Gigabit Ethernet driverMichael Buesch2008-03-06
| | | | | | | | | | | | | | | | | | | | This adds the Gigabit Ethernet driver for the SSB Gigabit Ethernet core. This driver actually is a frontend to the Tigon3 driver. So the real work is done by tg3. This device is used in the Linksys WRT350N. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ssb: Add support for 8bit register accessMichael Buesch2008-02-29
|/ | | | | | | | This adds support for 8bit wide register reads/writes. This is needed in order to support the gigabit ethernet core. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Fix pcicore cardbus modeMichael Buesch2008-02-20
| | | | | | | | This fixes the pcicore driver to not die a horrible crash death when inserting a cardbus card. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Make the GPIO API reentrancy safeMichael Buesch2008-02-20
| | | | | | | This fixes the GPIO API to be reentrancy safe. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* b43: fix build with CONFIG_SSB_PCIHOST=nAndrew Morton2008-02-05
| | | | | | | | | | | | | | m68k allmodconfig gives drivers/net/wireless/b43/main.c:251: error: implicit declaration of function 'mmiowb' because CONFIG_B43=m, CONFIG_SSB_PCIHOST=n. Might be Kconfig bustage, but this works... Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Add boardflags_hi field to the sprom data structureMichael Buesch2008-01-28
| | | | | | | Add boardflags-high. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: add 'ssb_pcihost_set_power_state' functionMiguel Botón2008-01-28
| | | | | | | | | | This patch adds the 'ssb_pcihost_set_power_state' function. This function allows us to set the power state of a PCI device (for example b44 ethernet device). Signed-off-by: Miguel Botón <mboton@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Fix PCMCIA lowlevel register accessMichael Buesch2008-01-28
| | | | | | | | | | | | This fixes lowlevel register access for PCMCIA based devices. The patch also adds a temporary workaround for the device mac address. It simply adds generation of a random address. The real SPROM extraction will follow in another patch. The temporary workaround will be removed then, but for now it's OK. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Fix extraction of values from SPROMMichael Buesch2008-01-28
| | | | | | | | | This fixes extraction of some values from the SPROM. It mainly fixes extraction of antenna related values, which is needed for another b43 fix sent later. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Remove the old, now unused, data structuresLarry Finger2008-01-28
| | | | | | | | The old, now unused, data structures and SPROM extraction routines are removed. Signed-off-by: Larry Finger<Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Convert to use of the new SPROM structureLarry Finger2008-01-28
| | | | | | | | | | | | | | | | | | In disagreement with the SPROM specs, revision 3 devices appear to have moved the MAC address. Change ssb to handle the revision 4 SPROM, which is a different size. This change in size is handled by adding a new variable to the ssb_sprom struct and using it whenever possible. For those routines that do not have access to this structure, a 'u16 size' argument is added. The new PCI_ID for the BCM4328 is also added. Testing of the Revision 4 SPROM, which is used on the BCM4328, was done by Michael Gerdau <mgerdau@tiscali.de>. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* ssb: Add new SPROM structure while keeping the oldLarry Finger2008-01-28
| | | | | | | | | | | | | | | | | | The SPROM's for various devices utilizing the Sonics Silicon Backplane come with various revisions. The Revision 2 SPROM inherited the data layout of 1, and Revision 3 inherited the layout of 2. The first instance of Revision 4 has now been found in a BCM4328 wireless LAN card. This device does not inherit any layout from previous versions. Although it was possible to create a data structure that kept all the old layouts, we decided to start fresh, keep only those SPROM variables that are used by the drivers that utilize ssb, and to do the conversion in such a manner that neither compilation or execution will be affected if a bisection lands in the middle of these changes, while keeping the patches as small as possible. In this patch, the sprom structures are changed while maintaining the old ones. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* [SSB]: add Sonics Silicon Backplane bus supportMichael Buesch2007-10-10
SSB is an SoC bus used in a number of embedded devices. The most well-known of these devices is probably the Linksys WRT54G, but there are others as well. The bus is also used internally on the BCM43xx and BCM44xx devices from Broadcom. This patch also includes support for SSB ID tables in modules, so that SSB drivers can be loaded automatically. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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