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path: root/drivers/parisc/sba_iommu.c
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2005-10-28Auto-update from upstreamKyle McMartin
2005-10-28[PATCH] gfp_t: dma-mapping (parisc)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21[PARISC] Update sba_iommu from parisc treeGrant Grundler
revert use of %%sr0 in fdc asm. Thanks to Joel Soete for pointing out this oversight. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> 2.6.14-rc2-pa3 move "sync" outside the main loop that fills IO Pdir. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> remove explicit use of sr0 in fdc ops. Thanks to Joel Soete for reminding me were I added those... Signed-off-by: Grant Grundler <grundler@parisc-linux.org> 2.6.14-rc2-pa2 - make SBA more anal about invalidating pdir entries Previous code cleared the valid flag a pdir entry but it did NOT guarantee this change was visible to the PDIR before writing the PCOM register. Ie the SBA could pick up a stale entry if the write happened to hit the SBA before the cacheline was flushed from the cache. Long term, I think I want to make this a compile time flag. Developement tree should enable anal pdir checking by default and Debian can disable it with either a CONFIG option or one-line patch. fdc/sync options can only negatively affect performance though I haven't measure how much yet. If someone can run netperf TCP_RR across gige and compare -pa1 and -pa2, that would be sufficient. Cleaned up the use of "fdc" to make sure it's using "kernel" space id (specify sr0 but maps to sr4-7). It seems a bit fragile to assume "sr1" gets loaded with KERNEL_SPACE which is how the code works today. Tested on 32 and 64-bit SMP kernels on j6k. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> remove PDC_NARROW from SBA and document history of PDC_NARROW a bit. It will still show up in an older kernel's .config file. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> if/ifdef cleanups from Joel Soete. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> 2.6.12-rc4-pa2 fix 32-bit support for Astro platforms o Since my last SBA code change, SBA could allocate more than 1GB of IOVA space on Astro boxes with more than 1GB of RAM when running 32-bit kernel. This is bad since IOMMU can only talk to the first 1GB at most. Kudos to jejb for quickly spotting that bug. o jejb also noted SBA should *always* reject DMA masks > 32-bits since DMA-mapping.txt indicates caller should try again with 32-bits. o off-by-one error when comparing the mask to IOVA space size. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Convert parisc_device to use struct resource for hpaMatthew Wilcox
Convert pa_dev->hpa from an unsigned long to a struct resource. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Fix up users of ->hpa to use ->hpa.start instead. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21[PARISC] Convert parisc_device tree to use struct device klistsMatthew Wilcox
Fix parse_tree_node. much more needs to be done to fix this file. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Make drivers.c compile based on a patch from Pat Mochel. From: Patrick Mochel <mochel@digitalimplant.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org> Fix drivers.c to create new device tree nodes when no match is found. Signed-off-by: Richard Hirst <rhirst@parisc-linux.org> Do a proper depth-first search returning parents before children, using the new klist infrastructure. Signed-off-by: Richard Hirst <rhirst@parisc-linux.org> Fixed parisc_device traversal so that pdc_stable works again Fixed check_dev so it doesn't dereference a parisc_device until it has verified the bus type Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Convert pa_dev->hpa from an unsigned long to a struct resource. Use insert_resource() instead of request_mem_region(). Request resources at bus walk time instead of driver probe time. Don't release the resources as we don't have any hotplug parisc_device support yet. Add parisc_pathname() to conveniently get the textual representation of the hwpath used in sysfs. Inline the remnants of claim_device() into its caller. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> I noticed that some of the STI regions weren't showing up in iomem. Reading the STI spec indicated that all STI devices occupy at least 32MB. So check for STI HPAs and give them 32MB instead of 4kB. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!