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David Howells 57cf4f78c6 MN10300: Fix flush_icache_range() ... flush_icache_range() is given virtual addresses to describe the region. It deals with these by attempting to translate them through the current set of page tables. This is fine for userspace memory and vmalloc()'d areas as they are governed by page tables. However, since the regions above 0x80000000 aren't translated through the page tables by the MMU, the kernel doesn't bother to set up page tables for them (see paging_init()). This means flush_icache_range() as it stands cannot be used to flush regions of the VM area between 0x80000000 and 0x9fffffff where the kernel resides if the data cache is operating in WriteBack mode. To fix this, make flush_icache_range() first check for addresses in the upper half of VM space and deal with them appropriately, before dealing with any range in the page table mapped area. Ordinarily, this is not a problem, but it has the capacity to make kprobes and kgdb malfunction. It should not affect gdbstub, signal frame setup or module loading as gdb has its own flush functions, and the others take place in the page table mapped area only. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		15 years ago
..
boot	MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader	15 years ago
configs	defconfig reduction	15 years ago
include/asm	MN10300: Fix SIGRTMAX	15 years ago
kernel	mn10300: check __get_user/__put_user results...	15 years ago
lib	mn10300: add cc clobbers to asm statements	15 years ago
mm	MN10300: Fix flush_icache_range()	15 years ago
oprofile	…
proc-mn103e010	…
unit-asb2303	…
unit-asb2305	PCI: clear bridge resource range if BIOS assigned bad one	15 years ago
Kconfig	MN10300: Arch doesn't support HAVE_ARCH_TRACEHOOK	15 years ago
Kconfig.debug	MN10300: Default config choice GDBSTUB_TTYSM0 should be GDBSTUB_ON_TTYSM0	15 years ago
Makefile	mn10300: objcopy flags fix	15 years ago