kernel.git/arch/powerpc/kernel/prom_init.c, branch linux-2.6.21.y

[POWERPC] Add device tree fixups for the EFIKA

2007-02-13T04:35:53Z

We make the efika device tree compliant with the defined bindings (at least compliant enough). This is mostly done by mangling the device_type and compatible properties, but also adding some missing bits. Signed-off-by: Sylvain Munaut Acked-by: Grant Likely Signed-off-by: Paul Mackerras

[POWERPC] Support ibm,dynamic-reconfiguration-memory nodes

2006-12-11T02:49:49Z

For PAPR partitions with large amounts of memory, the firmware has an alternative, more compact representation for the information about the memory in the partition and its NUMA associativity information. This adds the code to the kernel to parse this alternative representation. The other part of this patch is telling the firmware that we can handle the alternative representation. There is however a subtlety here, because the firmware will invoke a reboot if the memory representation we request is different from the representation that firmware is currently using. This is because firmware can't change the representation on the fly. Further, some firmware versions used on POWER5+ machines have a bug where this reboot leaves the machine with an altered value of load-base, which will prevent any kernel booting until it is reset to the normal value (0x4000). Because of this bug, we do NOT set fake_elf.rpanote.new_mem_def = 1, and thus we do not request the new representation on POWER5+ and earlier machines. We do request the new representation on POWER6, which uses the ibm,client-architecture-support call. Signed-off-by: Paul Mackerras

[POWERPC] Tell firmware we can handle POWER6 compatible mode

2006-12-04T09:41:53Z

This adds the "logical" PVR value used by POWER6 in "compatible" mode to the list of PVR values that the kernel tells firmware it is able to handle. Signed-off-by: Paul Mackerras

[POWERPC] Distinguish POWER6 partition modes and tell userspace

2006-12-04T09:40:16Z

This adds code to look at the properties firmware puts in the device tree to determine what compatibility mode the partition is in on POWER6 machines, and set the ELF aux vector AT_HWCAP and AT_PLATFORM entries appropriately. Specifically, we look at the cpu-version property in the cpu node(s). If that contains a "logical" PVR value (of the form 0x0f00000x), we call identify_cpu again with this PVR value. A value of 0x0f000001 indicates the partition is in POWER5+ compatibility mode, and a value of 0x0f000002 indicates "POWER6 architected" mode, with various extensions disabled. We also look for various other properties: ibm,dfp, ibm,purr and ibm,spurr. Signed-off-by: Paul Mackerras

[POWERPC] Cell iommu support

2006-12-04T09:39:02Z

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: Jeremy Kerr Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

Merge branch 'merge'

2006-08-31T05:45:48Z

[POWERPC] Fix up ibm_architecture_vec definition

2006-08-30T04:34:04Z

This problem was noticed by one of the Phyp firmware folks. Our ibm,client-architecture-support call was failing. This corrects the vector length parameters being passed in. Signed-off-by: Will Schmidt Signed-off-by: Paul Mackerras

[POWERPC] Fix 32 bits warning in prom_init.c

2006-07-25T15:26:43Z

A warning is hurting my eyes when building 32 bits kernels Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Workaround Pegasos incorrect ISA "ranges"

2006-07-25T15:26:24Z

The Pegasos firmware doesn't create a valid "ranges" property for the ISA bridge, thus causing translation of ISA addresses and IO ports to fail. This fixes it, thus re-enabling proper early serial console to work on Pegasos. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Add briq support to CHRP

2006-07-07T10:19:15Z

The support for Briq machines has been floating around as patches for ages. This cleans it up and adds it once for all. Some of this is based on initial code provided by Karsten Jeppesen and mostly rewritten from scratch by me. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras