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path: root/drivers/parisc/sba_iommu.c
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* parisc: use non-racy method for proc entries creationDenis V. Lunev2008-04-29
| | | | | | | | | | | | | | Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to main tree. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PARISC] make ptr_to_pide() staticFUJITA Tomonori2008-03-15
| | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* parisc: fix IOMMU's device boundary overflow bug on 32bits archFUJITA Tomonori2008-03-05
| | | | | | | | | | | On 32bits boxes, boundary_size becomes zero due to a overflow and we hit BUG_ON in iommu_is_span_boundary. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iommu: parisc: make the IOMMUs respect the segment boundary limitsFUJITA Tomonori2008-03-04
| | | | | | | | | | | | | Make PARISC's two IOMMU implementations not allocate a memory area spanning LLD's segment boundary. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iommu: parisc: pass struct device to iommu_alloc_rangeFUJITA Tomonori2008-03-04
| | | | | | | | | | | | | | This adds struct device argument to sba_alloc_range and ccio_alloc_range, a preparation for modifications to fix the IOMMU segment boundary problem. This change enables ccio_alloc_range to access to LLD's segment boundary limits. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Kyle McMartin <kyle@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* iommu sg merging: parisc: make iommu respect the segment size limitsFUJITA Tomonori2008-02-05
| | | | | | | | | | | | | | | This patch makes iommu respect segment size limits when merging sg lists. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <willy@debian.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* parisc: fix sg_page() falloutFUJITA Tomonori2007-10-23
| | | | | | | | | | | | | | | | | arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_map_sg': arch/parisc/kernel/pci-dma.c:487: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_unmap_sg': arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:508: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_cpu': arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:535: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c: In function 'pa11_dma_sync_sg_for_device': arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page' arch/parisc/kernel/pci-dma.c:545: error: 'struct scatterlist' has no member named 'page' Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* [PARISC] Clean up a resource_size_t warning in sba_iommuKyle McMartin2007-10-18
| | | | Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
* [PARISC] ROUNDUP macro cleanup in drivers/pariscMilind Arun Choudhary2007-05-22
| | | | | | | | | Clean up ROUNDUP, Use ALIGN where ever appropriate. Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Acked-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds2007-02-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits) [PARISC] Use symbolic last syscall in __NR_Linux_syscalls [PARISC] Add missing statfs64 and fstatfs64 syscalls Revert "[PARISC] Optimize TLB flush on SMP systems" [PARISC] Compat signal fixes for 64-bit parisc [PARISC] Reorder syscalls to match unistd.h Revert "[PATCH] make kernel/signal.c:kill_proc_info() static" [PARISC] fix sys_rt_sigqueueinfo [PARISC] fix section mismatch warnings in harmony sound driver [PARISC] do not export get_register/set_register [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code [PARISC] convert to use CONFIG_64BIT instead of __LP64__ [PARISC] use CONFIG_64BIT instead of __LP64__ [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro [PARISC] more ENTRY(), ENDPROC(), END() conversions [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc [PARISC] Fixes /proc/cpuinfo cache output on B160L [PARISC] implement standard ENTRY(), END() and ENDPROC() [PARISC] kill ENTRY_SYS_CPUS [PARISC] clean up debugging printks in smp.c [PARISC] factor syscall_restart code out of do_signal ... Fix conflict in include/linux/sched.h due to kill_proc_info() being made publicly available to PARISC again.
| * [PATCH] parisc: fix module_param iommu permissionRandy Dunlap2007-02-08
| | | | | | | | | | | | | | | | | | | | Fix/change module_param permissions parameter from an init value to a permission value. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * [PARISC] sparse fixesMatthew Wilcox2006-12-08
| | | | | | | | | | | | | | 0/NULL, missing __user, missing __iomem, non-ANSI prototype. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* | [PATCH] mark struct file_operations const 5Arjan van de Ven2007-02-12
|/ | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PA-RISC] Fix sba_iommu compilationMatthew Wilcox2006-10-04
| | | | | | | klist_iter_exit() only takes one parameter. Also fix warning by adding additional brackets. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
* [PARISC] Add support for Quicksilver AGPGARTKyle McMartin2006-10-04
| | | | Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Move LBA and SBA register defines to the common ropes.hKyle McMartin2006-10-04
| | | | | | | header. This will allow the use of more constants in the agpgart driver. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Create shared <asm/ropes.h> headerKyle McMartin2006-10-04
| | | | | | | | | Pull out struct sba_device and struct lba_device into a common ropes.h header. Also fold the parisc portion of iosapic.h into this file. (Then delete the useless portion of iosapic.h) Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Generalize IS_ASTRO et al to take a parisc_device likeKyle McMartin2006-10-04
| | | | | | | IS_ELROY. Also remove the useless caching of the parisc_device_id in struct sba_device. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Remove some obsolete comments and I checked that Reo is similar to IkeMatthew Wilcox2006-10-04
| | | | | Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Add asm-parisc/mckinley.h bus headerKyle McMartin2006-10-04
| | | | | | | Add header for McKinley bus related code. Remove extern decl of proc_mckinley_root in drivers/parisc/sba_iommu.c Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PARISC] Test ioc_needs_fdc variable instead of open codingKyle McMartin2006-06-27
| | | | | | | Some debugging code in sba_iommu.c should be testing ioc_needs_fdc, not directly testing boot_cpu_data. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Fix gcc 4.1 warnings in sba_iommu.cGrant Grundler2006-06-27
| | | | | | | | | | | Clean up gcc 4.1 warnings noted by Joel Soete. Kyle McMartin gets kudos for pointing out the issues. Matthew Wilcox noticed sba_iommu was using open coded versions of (read|write)X. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Document that we tolerate "Relaxed Ordering"Grant Grundler2006-04-21
| | | | | | | | | | | | | This means "DMA Read returns" can bypass "MMIO Writes". Violating the PCI specs in this case improves outbound DMA "flows" and is currently not required by any drivers. This is NOT a new behavior. Previous chipsets did this already and I believe ZX1 PDC was already setting this for hpux. I just want to further document the behavior. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] I/O-Space must be ioremap_nocache()'dHelge Deller2006-03-30
| | | | | | | Addresses in F-space must be accessed uncached on most parisc machines. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* BUG_ON() Conversion in drivers/parisc/Eric Sesterhenn2006-03-24
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PARISC] Convert sba_iommu.c to use seq_fileKyle McMartin2006-02-08
| | | | | | | | Use seq_file interface for proc output in sba_iommu. Also clean up the bus root assignment, and give the proc files a more logical name. Tested on my J6000. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* [PARISC] Use kzalloc and other janitor-style cleanupsHelge Deller2006-01-22
| | | | | | | | | | | | | | | | Helge, o Convert a bunch of kmalloc/memset uses to kzalloc. o pci.c: Add some __read_mostly annotations. o pci.c: Move constant pci_post_reset_delay to asm/pci.h o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG. o Add some consts to perf.c/perf_images.h Matthew, o sticore.c: Add some consts to suppress compile warnings. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
* Auto-update from upstreamKyle McMartin2005-10-28
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| * [PATCH] gfp_t: dma-mapping (parisc)Al Viro2005-10-28
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PARISC] Update sba_iommu from parisc treeGrant Grundler2005-10-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [PARISC] Convert parisc_device to use struct resource for hpaMatthew Wilcox2005-10-21
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [PARISC] Convert parisc_device tree to use struct device klistsMatthew Wilcox2005-10-21
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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!
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