mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-12 13:55:32 +00:00
Code Issues Releases Wiki Activity
linux-stable/arch/powerpc
History
Nishanth Aravamudan af442a1baa powerpc: Ensure dtl buffers do not cross 4k boundary 
Future releases of fimrware will enforce a requirement that DTL buffers
do not cross a 4k boundary. Commit
127493d5dc satisfies this requirement for
CONFIG_VIRT_CPU_ACCOUNTING=y kernels, but if !CONFIG_VIRT_CPU_ACCOUNTING
&& CONFIG_DTL=y, the current code will fail at dtl registration time.
Fix this by making the kmem cache from
127493d5dc visible outside of setup.c and
using the same cache in both dtl.c and setup.c. This requires a bit of
reorganization to ensure ordering of the kmem cache and buffer
allocations.

Note: Since firmware now limits the size of the buffer, I made
dtl_buf_entries read-only in debugfs.

Tested with upcoming firmware with the 4 combinations of
CONFIG_VIRT_CPU_ACCOUNTING and CONFIG_DTL.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-05-19 14:30:41 +10:00
..
boot powerpc: Use the deterministic mode of ar 2011-05-19 14:30:40 +10:00
configs powerpc: Fix build warning of the defconfigs 2011-04-27 14:18:41 +10:00
include/asm powerpc: Ensure dtl buffers do not cross 4k boundary 2011-05-19 14:30:41 +10:00
kernel powerpc: Remove unused config in the Makefile 2011-05-19 14:30:40 +10:00
kvm powerpc: Always use SPRN_SPRG_HSCRATCH0 when running in HV mode 2011-04-20 11:03:23 +10:00
lib powerpc: Use MSR_64BIT in sstep.c, fix kprobes on BOOK3E 2011-04-27 14:18:46 +10:00
math-emu powerpc/85xx: Fix SPE float to integer conversion failure 2011-03-15 13:48:15 -05:00
mm powerpc: Fix compile with icwsx support 2011-05-06 13:18:34 +10:00
oprofile Fix common misspellings 2011-03-31 11:26:23 -03:00
platforms powerpc: Ensure dtl buffers do not cross 4k boundary 2011-05-19 14:30:41 +10:00
sysdev powerpc: Add WSP platform 2011-05-06 13:32:35 +10:00
xmon powerpc: Convert old cpumask API into new one 2011-05-04 15:22:59 +10:00
Kconfig powerpc/boot: Add an ePAPR compliant boot wrapper 2011-04-20 16:59:21 +10:00
Kconfig.debug powerpc: Add early debug for WSP platforms 2011-05-06 13:32:41 +10:00
Makefile
relocs_check.pl