- 09 3月, 2007 2 次提交
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由 Stephen Rothwell 提交于
This allows us to hide pci_dma_ops. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Stephen Rothwell 提交于
This will allow us to build without PCI easier. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 10 2月, 2007 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 12月, 2006 4 次提交
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由 Jeremy Kerr 提交于
This patch adds full cell iommu support (and iommu disabled mode). It implements mapping/unmapping of iommu pages on demand using the standard powerpc iommu framework. It also supports running with iommu disabled for machines with less than 2GB of memory. (The default is off in that case, though it can be forced on with the kernel command line option iommu=force). Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
Now that the direct DMA ops supports an offset, we use that instead of defining our own. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
This patch makes the Cell DMA code work on both the Spider and the Axon south bridges by turning cell_dma_valid into a variable instead of a constant. This is a temporary patch until we have full iommu support. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 05 10月, 2006 1 次提交
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由 Arnd Bergmann 提交于
- Some long constants should be marked 'ul'. - When using desc->handler_data to pass an __iomem register area, we need to add casts to and from __iomem. Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 31 7月, 2006 1 次提交
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由 Jeremy Kerr 提交于
Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. cell platform changes. Built for cell_defconfig Signed-off-by: NJeremy Kerr <jk@ozlabs.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 15 6月, 2006 1 次提交
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由 Anton Blanchard 提交于
For pseries IOMMU bypass I want to be able to fall back to the regular IOMMU ops. Do this by creating a dma_mapping_ops struct, and convert the others while at it. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 27 3月, 2006 2 次提交
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由 Arnd Bergmann 提交于
I'm not sure where the information came from, but I assumed that doing cache-inhibited mappings for mmio regions was sufficient. It seems we also need the guarded bit set, like everyone else, which is the default for ioremap. Signed-off-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Arnd Bergmann 提交于
A small bug crept in the iommu driver when we made it more generic. This patch is needed for boards that have a dma window that does not start at bus address zero. Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 1月, 2006 1 次提交
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So far, the iommu code was hardwired to a linear mapping between 0x20000000 and 0x40000000, so it could only support 512MB of RAM. This patch still keeps the linear mapping, but looks for proper ibm,dma-window properties to set up larger windows, this makes the maximum supported RAM size 2GB. If there is anything unusual about the dma-window properties, we fall back to the old behavior. We also support switching off the iommu completely now with the regular iommu=off command line option. Signed-off-by: NArnd Bergmann <arndb@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 01 11月, 2005 2 次提交
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由 Arnd Bergmann 提交于
This patch simply moves files over to arch/powerpc without making any changes to them. Signed-off-by: NArnd Bergmann <arndb@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Arnd Bergmann 提交于
The official name for BPA is now CBEA (Cell Broadband Engine Architecture). This patch renames all occurences of the term BPA to 'Cell' for easier recognition. Signed-off-by: NArnd Bergmann <arndb@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 10 10月, 2005 1 次提交
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由 Paul Mackerras 提交于
This is a bunch of mostly small fixes that are needed to get ARCH=powerpc to compile for 64-bit. This adds setup_64.c from arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 10月, 2005 1 次提交
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由 Al Viro 提交于
- added typedef unsigned int __nocast gfp_t; - replaced __nocast uses for gfp flags with gfp_t - it gives exactly the same warnings as far as sparse is concerned, doesn't change generated code (from gcc point of view we replaced unsigned int with typedef) and documents what's going on far better. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 30 9月, 2005 1 次提交
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由 Al Viro 提交于
BUILD_BUG_ON(1) is asking for trouble (and getting it) when used in that manner - dead code elimination happens after we parse it and invalid type is invalid type, dead code or not. It might be version-dependent, but at least 4.0.1 refuses to accept that. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 28 9月, 2005 1 次提交
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由 Stephen Rothwell 提交于
and rename it to pci.c. This also required moving arch/ppc64/kernel/pci.h into include/asm-powerpc (called ppc-pci.h. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
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- 23 6月, 2005 1 次提交
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由 Arnd Bergmann 提交于
Implementation of software load support for the BE iommu. This is very different from other iommu code on ppc64, since we only do a static mapping. The mapping is currently hardcoded but should really be read from the firmware, but they don't set up the device nodes yet. There is a single 512MB DMA window for PCI, USB and ethernet at 0x20000000 for our RAM. The Cell processor can put the I/O page table either in memory like the hashed page table (hardware load) or have the operating system write the entries into memory mapped CPU registers (software load). I use the software load mechanism because I know that all I/O page table entries for the amount of installed physical memory fit into the IO TLB cache. At the point when we get machines with more than 4GB of installed memory, we can either use hardware I/O page table access like the other platforms do or dynamically update the I/O TLB entries when a page fault occurs in the I/O subsystem. The software load can then use the macros that I have implemented for the static mapping in order to do the TLB cache updates. Signed-off-by: NArnd Bergmann <arndb@de.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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