linux/arch/x86/include/asm/uv
Cliff Wickman 26ef85770c x86/uv: Implement UV BAU runtime enable and disable control via /proc/sgi_uv/
This patch enables the BAU to be turned on or off dynamically.

  echo "on"  > /proc/sgi_uv/ptc_statistics
  echo "off" > /proc/sgi_uv/ptc_statistics

The system may be booted with or without the nobau option.

Whether the system currently has the BAU off can be seen in
the /proc file -- normally with the baustats script.
Each cpu will have a 1 in the bauoff field if the BAU was turned
off, so baustats will give a count of cpus that have it off.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20120622131330.GB31884@sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-06-25 14:45:04 +02:00
..
bios.h Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-28 11:00:55 -08:00
uv_bau.h x86/uv: Implement UV BAU runtime enable and disable control via /proc/sgi_uv/ 2012-06-25 14:45:04 +02:00
uv_hub.h x86/uv: Fix uv_gpa_to_soc_phys_ram() shift 2012-01-26 10:58:27 +01:00
uv_irq.h x86, apic: Move SGI UV functionality out of generic IO-APIC code 2009-10-14 09:17:09 +02:00
uv_mmrs.h x86, UV: Fix UV2 hub part number 2011-12-05 11:49:52 +01:00
uv.h x86: Enable NMI on all cpus on UV 2010-02-27 12:34:21 +01:00