linux/arch/powerpc
Benjamin Herrenschmidt 370a908db1 [POWERPC] DEBUG_PAGEALLOC for 64-bit
Here's an implementation of DEBUG_PAGEALLOC for 64 bits powerpc.
It applies on top of the 32 bits patch.

Unlike Anton's previous attempt, I'm not using updatepp. I'm removing
the hash entries from the bolted mapping (using a map in RAM of all the
slots). Expensive but it doesn't really matter, does it ? :-)

Memory hot-added doesn't benefit from this unless it's added at an
address that is below end_of_DRAM() as calculated at boot time.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

 arch/powerpc/Kconfig.debug      |    2
 arch/powerpc/mm/hash_utils_64.c |   84 ++++++++++++++++++++++++++++++++++++++--
 2 files changed, 82 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13 04:09:39 +10:00
..
boot [POWERPC] bootwrapper: Decompress less, check more 2007-04-13 03:55:17 +10:00
configs Merge branch 'linux-2.6' into for-2.6.22 2007-04-13 03:50:03 +10:00
kernel [POWERPC] Make tlb flush batch use lazy MMU mode 2007-04-13 04:09:38 +10:00
lib [POWERPC] Use mtocrf instruction in asm when CONFIG_POWER4_ONLY=y 2007-04-13 03:55:13 +10:00
math-emu [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c 2006-09-26 15:24:35 +10:00
mm [POWERPC] DEBUG_PAGEALLOC for 64-bit 2007-04-13 04:09:39 +10:00
oprofile [POWERPC] cell: pm_rtas_activat_signals routine cleanup 2007-02-13 22:03:07 +01:00
platforms [POWERPC] Rename get_property to of_get_property: the last one 2007-04-13 03:55:19 +10:00
sysdev [POWERPC] Rename get_property to of_get_property: arch/powerpc 2007-04-13 03:55:19 +10:00
xmon [POWERPC] Allow xmon to build without CONFIG_DEBUG_BUGVERBOSE 2007-03-09 15:03:26 +11:00
.gitignore [POWERPC] Add files build to .gitignore 2006-12-04 20:41:29 +11:00
Kconfig [POWERPC] 86xx/85xx: Move 8641 PCI-Express to arch/powerpc/sysdev/fsl_pcie.c. 2007-03-26 17:03:25 -05:00
Kconfig.debug [POWERPC] DEBUG_PAGEALLOC for 64-bit 2007-04-13 04:09:39 +10:00
Makefile [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot 2006-09-28 14:30:02 +10:00