Grant Likely bd942ba3db [POWERPC] ppc405 Fix arithmatic rollover bug when memory size under 16M ... mmu_mapin_ram() loops over total_lowmem to setup page tables. However, if total_lowmem is less that 16M, the subtraction rolls over and results in a number just under 4G (because total_lowmem is an unsigned value). This patch rejigs the loop from countup to countdown to eliminate the bug. Special thanks to Magnus Hjorth who wrote the original patch to fix this bug. This patch improves on his by making the loop code simpler (which also eliminates the possibility of another rollover at the high end) and also applies the change to arch/powerpc. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>		2007-11-01 07:15:59 -05:00
..
4xx_io	[POWERPC] Spelling fixes: arch/ppc/	2007-05-12 11:32:49 +10:00
8xx_io	[PPC] Fix cpm_dpram_addr returning phys mem instead of virt mem	2007-09-28 10:25:32 -05:00
8260_io	[NET]: Kill eth_copy_and_sum().	2007-07-10 22:08:12 -07:00
boot	kbuild: restore arch/{ppc/xtensa}/boot cflags	2007-10-20 20:35:23 +02:00
configs	[POWERPC] Remove APUS support from arch/ppc	2007-09-17 15:15:04 +10:00
kernel	[POWERPC] 4xx: Deal with 44x virtually tagged icache	2007-11-01 07:15:30 -05:00
lib
mm	[POWERPC] ppc405 Fix arithmatic rollover bug when memory size under 16M	2007-11-01 07:15:59 -05:00
platforms	[POWERPC] 4xx: Fix 4xx flush_tlb_page()	2007-11-01 07:15:09 -05:00
syslib	[POWERPC] Uartlite: Revert register io access changes	2007-10-03 07:37:41 -05:00
xmon
.gitignore	[POWERPC] Only ignore arch/ppc/include, not arch/ppc/boot/include	2007-08-17 11:01:51 +10:00
Kconfig	Combine instrumentation menus in kernel/Kconfig.instrumentation	2007-10-19 11:53:54 -07:00
Kconfig.debug
Makefile	kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP	2007-10-15 22:17:25 +02:00