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path: root/arch/mips/include/asm/mach-powertv/dma-coherence.h
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2011-09-17MIPS: Remove unneeded version.h includes from arch/mips/Jesper Juhl1-1/+0
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in arch/mips/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> To: LKML <linux-kernel@vger.kernel.org> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2540/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-25MIPS: Remove pointless return statement from empty void functions.Ralf Baechle1-1/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Sergei Shtylyov <sshtylyov@mvista.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2391/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-08-05MIPS: PowerTV: Use O(1) algorthm for phys_to_dma/dma_to_physDavid VomLehn1-4/+4
Replace phys_to_dma()/dma_to_phys() looping algorithm with an O(1) algorithm The approach taken is inspired by the sparse memory implementation: take a certain number of high-order bits off the address them, use this as an index into a table containing an offset to the desired address and add it to the original value. There is a table for mapping physical addresses to DMA addresses and another one for the reverse mapping. The table sizes depend on how fine-grained the mappings need to be; Coarser granularity less to smaller tables. On a processor with 32-bit physical and DMA addresses, with 4 MIB granularity, memory usage is two 2048-byte arrays. Each 32-byte cache line thus covers 64 MiB of address space. Also, renames phys_to_bus() to phys_to_dma() and bus_to_phys() to dma_to_phys() to align with kernel usage. [Ralf: Fixed silly build breakage due to stackoverflow warning caused by huge array on stack.] Signed-off-by: David VomLehn <dvomlehn@cisco.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1257/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17MIPS: PowerTV: Base files for Cisco PowerTV platformDavid VomLehn1-0/+119
Add the Cisco Powertv cable settop box to the MIPS tree. This platform is based on a MIPS 24Kc processor with various devices integrated on the same ASIC. There are multiple models of this box, with differing configuration but the same kernel runs across the product line. Signed-off-by: David VomLehn <dvomlehn@cisco.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/132/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>