WSL2-Linux-Kernel/arch/powerpc
Anton Blanchard cb2c9b2741 [PATCH] powerpc: Fix runlatch performance issues
The runlatch SPR can take a lot of time to write. My original runlatch
code would set it on every exception entry even though most of the time
this was not required. It would also continually set it in the idle
loop, which is an issue on an SMT capable processor.

Now we cache the runlatch value in a threadinfo bit, and only check for
it in decrementer and hardware interrupt exceptions as well as the idle
loop. Boot on POWER3, POWER5 and iseries, and compile tested on pmac32.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-24 11:36:31 +11:00
..
boot powerpc/32: Generate miboot images with ARCH=powerpc 2006-01-15 13:00:08 +11:00
configs [PATCH] e1000: Added disable packet split capability 2006-01-18 16:17:57 -05:00
kernel [PATCH] powerpc: Fix runlatch performance issues 2006-02-24 11:36:31 +11:00
lib [PATCH] powerpc: Remove lppaca structure from the PACA 2006-01-13 21:17:39 +11:00
mm [PATCH] powerpc64: fix spinlock recursion in native_hpte_clear 2006-02-24 11:36:29 +11:00
oprofile [PATCH] powerpc: disable OProfile for iSeries 2006-02-24 11:36:27 +11:00
platforms [PATCH] powerpc: Fix runlatch performance issues 2006-02-24 11:36:31 +11:00
sysdev [PATCH] fix iomem annotations in dart_iommu 2006-02-08 01:04:30 -05:00
xmon [PATCH] powerpc: xmon namespace cleanups 2006-01-12 20:39:14 +11:00
Kconfig [PATCH] powerpc: Add CONFIG_DEFAULT_UIMAGE for embedded boards 2006-02-10 17:15:01 +11:00
Kconfig.debug [PATCH] powerpc: Make early debugging configurable via Kconfig 2006-01-11 14:48:26 +11:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge 2006-02-10 14:52:31 -08:00