kernel.git/arch/powerpc/platforms/ps3, branch linux-2.6.28.y

powerpc: Update remaining dma_mapping_ops to use map/unmap_page

2008-10-31T05:13:48Z

After the merge of the 32 and 64bit DMA code, dma_direct_ops lost their map/unmap_single() functions but gained map/unmap_page(). This caused a problem for Cell because Cell's dma_iommu_fixed_ops called the dma_direct_ops if the fixed linear mapping was to be used or the iommu ops if the dynamic window was to be used. So in order to fix this problem we need to update the 64bit DMA code to use map/unmap_page. First, we update the generic IOMMU code so that iommu_map_single() becomes iommu_map_page() and iommu_unmap_single() becomes iommu_unmap_page(). Then we propagate these changes up through all the callers of these two functions and in the process update all the dma_mapping_ops so that they have map/unmap_page rahter than map/unmap_single. We can do this because on 64bit there is no HIGHMEM memory so map/unmap_page ends up performing exactly the same function as map/unmap_single, just taking different arguments. This has no affect on drivers because the dma_map_single_attrs() just ends up calling the map_page() function of the appropriate dma_mapping_ops and similarly the dma_unmap_single_attrs() calls unmap_page(). This fixes an oops on Cell blades, which oops on boot without this because they call dma_direct_ops.map_single, which is NULL. Signed-off-by: Mark Nelson Signed-off-by: Paul Mackerras

powerpc: Drop archdata numa_node

2008-09-24T21:26:43Z

Use the struct device's numa_node instead; use accessor functions to get/set numa_node. Signed-off-by: Becky Bruce Signed-off-by: Kumar Gala

powerpc/ps3: Fix ioremap of spu shadow regs

2008-08-26T00:24:46Z

Fix the ioremap of the spu shadow regs on the PS3. The current PS3 hypervisor requires the spu shadow regs to be mapped with the PTE page protection bits set as read-only (PP=3). This implementation uses the low level __ioremap() to bypass the page protection settings inforced by ioremap_flags() to get the needed PTE bits set for the shadow regs. This fixes a runtime failure on the PS3 introduced by the powerpc ioremap_prot rework of commit a1f242ff460e4b50a045fa237c3c56cce9eabf83 ("powerpc ioremap_prot"). Signed-off-by: Masakazu Mokuno CC: Benjamin Herrenschmidt Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras

powerpc/ps3: Rework htab code to remove ioremap

2008-08-26T00:24:46Z

Rework the PS3 MMU hash table code to remove the need to ioremap the hash table by using the HV calls lv1_insert_htab_entry() and lv1_read_htab_entries(). This fixes a runtime failure on the PS3 introduced by the powerpc ioremap_prot rework of commit a1f242ff460e4b50a045fa237c3c56cce9eabf83 ("powerpc ioremap_prot"). Signed-off-by: Masakazu Mokuno CC: Benjamin Herrenschmidt Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras

powerpc/ps3: Add a sub-match id to ps3_system_bus

2008-07-22T00:39:33Z

Add sub match id for ps3 system bus so that two different system bus devices can be connected to a shared device. Signed-off-by: Masakazu Mokuno Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt

powerpc: pci config cleanup

2008-07-16T22:57:34Z

Choosing PCI or not at config time is allowed on some platforms via an if expression in arch/powerpc/Kconfig. To add a new platform with PCI support selectable at config time, you must change the if expression. This patch makes this easier by changing: bool "PCI support" if to bool "PCI support" if PPC_PCI_CHOICE and adding select PPC_PCI_CHOICE to all the config nodes that were previously in the PCI if expression. Platforms with unconditional PCI support continue to just select PCI in their config nodes. Signed-off-by: John Rigby Acked-by: Grant Likely Signed-off-by: Kumar Gala

Merge commit 'origin/master'

2008-07-16T01:07:59Z

Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c

powerpc/dma: implement new dma_map_attrs() interfaces

2008-07-09T06:30:43Z

Update powerpc to use the new dma_*map*_attrs() interfaces. In doing so update struct dma_mapping_ops to accept a struct dma_attrs and propagate these changes through to all users of the code (generic IOMMU and the 64bit DMA code, and the iseries and ps3 platform code). The old dma_*map_*() interfaces are reimplemented as calls to the corresponding new interfaces. Signed-off-by: Mark Nelson Signed-off-by: Arnd Bergmann Acked-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Quiet system bus match output

2008-07-09T06:30:42Z

Reduce the output verbosity of ps3_system_bus_match(). Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt

powerpc: convert to generic helpers for IPI function calls

2008-06-26T09:22:13Z

This converts ppc to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). ppc loses the timeout functionality of smp_call_function_mask() with this change, as the generic code does not provide that. Acked-by: Paul Mackerras Signed-off-by: Jens Axboe