kernel.git/arch/ppc64/kernel/ItLpQueue.c, branch linux-2.6.13.y

[PATCH] ppc64: Replace custom locking code with a spinlock

2005-06-30T05:17:02Z

The hvlpevent_queue (formally ItLpQueue) has a member called xInUseWord which is used for serialising access to the queue. Because it's a word (ie. 32 bit) there's a custom 32-bit version of test_and_set_bit() or thereabouts in ItLpQueue.c. The xInUseWord is not shared with they hypervisor, so we can replace it with a spinlock and remove the custom code. There is also another locking mechanism (ItLpQueueInProcess). This is redundant because it's only manipulated while the lock's held. Remove it. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Formatting cleanups in arch/ppc64/kernel/ItLpQueue.c

2005-06-30T05:16:48Z

Just formatting cleanups: * rename some "nextLpEvent" variables to just "event" * make code fit in 80 columns * use brackets around if/else * use a temporary to make hvlpevent_clear_valid clearer Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Cleanup whitespace in arch/ppc64/kernel/ItLpQueue.c

2005-06-30T05:16:28Z

Just cleanup white space. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Cleanup proc printing of event types

2005-06-30T05:16:18Z

The code that prints event counts by type uses a hand-coded number of tabs to get the alignment right. Instead use a printf alignment which will allow allow us to use the event_type strings elsewhere in the future. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Simplify counting of lpevents, remove lpevent_count from paca

2005-06-30T05:16:09Z

Currently there's a per-cpu count of lpevents processed, a per-queue (ie. global) total count, and a count by event type. Replace all that with a count by event for each cpu. We only need to add it up int the proc code. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Don't count number of events processed for caller

2005-06-30T05:15:53Z

Currently we count the number of lpevents processed in 3 seperate places. One of these counters is never read, so just remove it. This means hvlpevent_queue_process() no longer needs to return the number of events processed. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Rename ItLpQueue_* functions to hvlpevent_queue_*

2005-06-30T05:15:42Z

Now that we've renamed the xItLpQueue structure, rename the functions that operate on it also. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Rename xItLpQueue to hvlpevent_queue

2005-06-30T05:15:32Z

The xItLpQueue is a queue of HvLpEvents that we're given by the Hypervisor. Rename xItLpQueue to hvlpevent_queue and make the type struct hvlpevent_queue. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Move definition of xItLpQueue

2005-06-30T05:12:21Z

The xItLpQueue is declared in LparData.c, move it into ItLpQueue.c. Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras

[PATCH] ppc64: Make two ItLpQueue related functions static

2005-06-30T05:08:56Z

External parties don't need to use ItLpQueue_getNextLpEvent() or ItLpQueue_clearValid(), they're internal to ItLpQueue.c Signed-off-by: Michael Ellerman Acked-by: Stephen Rothwell Signed-off-by: Paul Mackerras