kernel.git/arch/powerpc, branch linux-2.6.24.y

POWERPC: Revert chrp_pci_fixup_vt8231_ata devinit to fix libata on pegasos

2008-02-26T00:19:01Z

Commit: 092ca5bd61da6344f3b249754b337f2d48dfe08d [POWERPC] Revert chrp_pci_fixup_vt8231_ata devinit to fix libata on pegasos Commit 6d98bda79bea0e1be26c0767d0e9923ad3b72f2e changed the init order for chrp_pci_fixup_vt8231_ata(). It can not work anymore because either the irq is not yet set to 14 or pci_get_device() returns nothing. At least the printk() in chrp_pci_fixup_vt8231_ata() does not trigger anymore. pata_via works again on Pegasos with the change below. Signed-off-by: Olaf Hering Signed-off-by: Paul Mackerras Cc: Chuck Ebbert Signed-off-by: Greg Kroah-Hartman

Disable G5 NAP mode during SMU commands on U3

2008-02-26T00:18:48Z

patch 592a607bbc053bc6f614a0e619326009f4b3829e in mainline. It appears that with the U3 northbridge, if the processor is in NAP mode the whole time while waiting for an SMU command to complete, then the SMU will fail. It could be related to the weird backward mechanism the SMU uses to get to system memory via i2c to the northbridge that doesn't operate properly when the said bridge is in napping along with the CPU. That is on U3 at least, U4 doesn't seem to be affected. This didn't show before NO_HZ as the timer wakeup was enough to make it work it seems, but that is no longer the case. This fixes it by disabling NAP mode on those machines while an SMU command is in flight. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras Signed-off-by: Greg Kroah-Hartman

Fix file references in documentation and Kconfig

2008-01-22T18:43:36Z

Fix typo in arch/powerpc/boot/flatdevtree_env.h. There is no Documentation/networking/ixgbe.txt. README.cycladesZ is now in Documentation/. wavelan.p.h is now in drivers/net/wireless/. HFS.txt is now Documentation/filesystems/hfs.txt. OSS-files are now in sound/oss/. Signed-off-by: Johann Felix Soden Acked-by: Randy Dunlap Signed-off-by: Linus Torvalds

[POWERPC] Fix boot failure on POWER6

2008-01-15T06:30:58Z

Commit 473980a99316c0e788bca50996375a2815124ce1 added a call to clear the SLB shadow buffer before registering it. Unfortunately this means that we clear out the entries that slb_initialize has previously set in there. On POWER6, the hypervisor uses the SLB shadow buffer when doing partition switches, and that means that after the next partition switch, each non-boot CPU has no SLB entries to map the kernel text and data, which causes it to crash. This fixes it by reverting most of 473980a9 and instead clearing the 3rd entry explicitly in slb_initialize. This fixes the problem that 473980a9 was trying to solve, but without breaking POWER6. Signed-off-by: Paul Mackerras

[POWERPC] Workaround for iommu page alignment

2008-01-15T04:39:59Z

Commit 5d2efba64b231a1733c4048d1708d77e07f26426 changed our iommu code so that it always uses an iommu page size of 4kB. That means with our current code, drivers may do a dma_map_sg() of a 64kB page and obtain a dma_addr_t that is only 4k aligned. This works fine in most cases except for some infiniband HW it seems, where they tell the HW about the page size and it ignores the low bits of the DMA address. This works around it by making our IOMMU code enforce a PAGE_SIZE alignment for mappings of objects that are page aligned in the first place and whose size is larger or equal to a page. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Fix CPU hotplug when using the SLB shadow buffer

2008-01-11T05:33:55Z

Before we register the SLB shadow buffer, we need to invalidate the entries in the buffer, otherwise we can end up stale entries from when we previously offlined the CPU. This does this invalidate as well as unregistering the buffer with PHYP before we offline the cpu. Tested and fixes crashes seen on 970MP (thanks to tonyb) and POWER5. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras

[POWERPC] efika: add phy-handle property for fec_mpc52xx

2008-01-10T15:12:59Z

The new network driver fec_mpc52xx will not work on efika because the firmware does not provide all required properties. http://www.powerdeveloper.org/asset/by-id/46 has a Forth script to create more properties. But only the phy stuff is required to get a working network. This should go into the kernel because its appearently impossible to boot the script via tftp and then load the real boot binary (yaboot or zimage). Signed-off-by: Olaf Hering Signed-off-by: Grant Likely Acked-by: Benjamin Herrenschmidt

[POWERPC] Fix build failure on Cell when CONFIG_SPU_FS=y

2008-01-02T04:56:30Z

Commit aed3a8c9bb1a8623a618232087c5ff62718e3b9a introduced a definition of notify_spus_active in .../cell/spu_syscalls.c, and another definition under #ifndef MODULE in .../cell/spufs/sched.c. The latter is not necessary and causes the build to fail when CONFIG_SPU_FS=y, so this removes it. It also removes the export of do_notify_spus_active, which is unnecessary. Signed-off-by: Paul Mackerras Acked-by: Arnd Bergmann Acked-by: Jeremy Kerr

[POWERPC] PS3: Fix printing of os-area magic numbers

2007-12-28T04:07:52Z

Fix a bug in the printing of the os-area magic numbers which assumed that magic numbers were zero terminated strings. The magic numbers are represented in memory as integers. If the os-area sections are not initialized correctly they could contained random data that would be printed to the display. Also unify the handling of header and db magic numbers and make both of type array of u8. Signed-off-by: Geoff Levand Signed-off-by: Paul Mackerras

[POWERPC] Oprofile: Remove dependency on spufs module

2007-12-28T04:07:52Z

This removes an OProfile dependency on the spufs module. This dependency was causing a problem for multiplatform systems that are built with support for Oprofile on Cell but try to load the oprofile module on a non-Cell system. Signed-off-by: Bob Nelson Signed-off-by: Arnd Bergmann Acked-by: Jeremy Kerr Signed-off-by: Paul Mackerras