kernel.git/arch/powerpc/platforms/pseries, branch linux-2.6.25.y

powerpc/pseries/xcis: ansify

2008-03-30T21:20:24Z

Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[POWERPC] Fix warning in pseries/power.c

2008-02-20T02:33:37Z

Introduced by commit 79393fc46ede43451a500a132e5de9856f5a4c83 ("kobject: convert pseries/power.c to kobj_attr interface"). sys_create_file takes a "struct attrbute *" not a "struct kobj_addribute *". arch/powerpc/platforms/pseries/power.c: In function 'apo_pm_init': arch/powerpc/platforms/pseries/power.c:78: warning: passing argument 2 of 'sysfs_create_file' from incompatible pointer type Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[POWERPC] Update default irq servers when boot cpu is removed

2008-02-07T00:40:19Z

The xics code does update the default server information when the boot cpu is removed. This patch recognizes when the boot cpu is being removed and updates the appropriate information based on the new 'boot cpu'. Failure to update this information can causes us to leave irqs pinned to cpus that are being removed, especially when removing the boot cpu. The cpu is removed from the kernel, but cpu dlpar remove operations fail since we cannot return the cpu to the hypervisor. Signed-off-by: Nathan Fonteno Signed-off-by: Paul Mackerras

[POWERPC] Remove redundant of_get_cpu_node routine

2008-02-07T00:40:19Z

It appears that xics.c has its own of_get_cpu_node(). Remove this and use the common one from prom.c. Signed-off-by: Nathan Fontenot Signed-off-by: Paul Mackerras

[POWERPC] Split xics_teardown_cpu()

2008-02-07T00:40:19Z

This splits off the kexec path bits of the xics_teardown_cpu() routine into its own xics_kexec_teardown_cpu() routine. With the previous combined routine the CPPR for a cpu that is being removed may have its CPPR reset in the plpar_eoi() call (which explicitly sets the CPPR to a non-zero value). Splitting of the kexec bits of the code prevents this from happening in the cpu remove path. Once again, this does not cause the cpu remove from the kernel to fail, but it does cause cpu dlpar operations to not be able to return the cpu to the hypervisor. Signed-off-by: Nathan Fontenot Signed-off-by: Paul Mackerras

[POWERPC] Update irq descriptor affinity

2008-02-07T00:40:19Z

The affinity mask in the virq descriptor needs to be set before we reset the affinity for the virq. Without doing this the call to get the new irq server fails and we end up leaving the virq pinned to the cpu we are removing. This does not fail the cpu remove from the kernel, but it does prevent cpu dlpar remove operations from returning the cpu to the hypervisor. Signed-off-by: Nathan Fontenot Signed-off-by: Paul Mackerras

[POWERPC] arch/powerpc/platforms/pseries: Add missing of_node_put

2008-02-06T11:06:59Z

Of_get_parent and of_find_compatible_node do an of_node_get, and thus a corresponding of_code_put is needed in the error case. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) // @@ type T,T1,T2; identifier E; statement S; expression x1,x2,x3; int ret; @@ T E; ... * E = \(of_get_parent\|of_find_compatible_node\)(...); if (E == NULL) S ... when != of_node_put(...,(T1)E,...) when != if (E != NULL) { ... of_node_put(...,(T1)E,...); ...} when != x1 = (T1)E when != E = x3; when any if (...) { ... when != of_node_put(...,(T2)E,...) when != if (E != NULL) { ... of_node_put(...,(T2)E,...); ...} when != x2 = (T2)E ( * return; | * return ret; ) } // Signed-off-by: Julia Lawall Cc: Stephen Rothwell Cc: Benjamin Herrenschmidt Cc: Kumar Gala Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras

Merge branch 'linux-2.6'

2008-01-31T00:25:51Z

cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()

2008-01-25T20:08:02Z

Replace all lock_cpu_hotplug/unlock_cpu_hotplug from the kernel and use get_online_cpus and put_online_cpus instead as it highlights the refcount semantics in these operations. The new API guarantees protection against the cpu-hotplug operation, but it doesn't guarantee serialized access to any of the local data structures. Hence the changes needs to be reviewed. In case of pseries_add_processor/pseries_remove_processor, use cpu_maps_update_begin()/cpu_maps_update_done() as we're modifying the cpu_present_map there. Signed-off-by: Gautham R Shenoy Signed-off-by: Ingo Molnar

driver core: make /sys/power a kobject

2008-01-25T04:40:25Z

/sys/power should not be a kset, that's overkill. This patch renames it to power_kset and fixes up all usages of it in the tree. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman