1522ac3ec9
The current use of these macros works well when the conversion is entirely linear. In this case, we can be assured that the following holds true: __va(p + s) - s = __va(p) However, this is not always the case, especially when there is a non-linear conversion (eg, when there is a 3.5GB hole in memory.) In this case, if 's' is the size of the region (eg, PAGE_SIZE) and 'p' is the final page, the above is most definitely not true. So, we must ensure that __va() and __pa() are only used with valid kernel direct mapped RAM addresses. This patch tweaks the code to achieve this. Tested-by: Charles Moschel <fred99@carolina.rr.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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abort-ev4.S | ||
abort-ev4t.S | ||
abort-ev5t.S | ||
abort-ev5tj.S | ||
abort-ev6.S | ||
abort-ev7.S | ||
abort-lv4t.S | ||
abort-macro.S | ||
abort-nommu.S | ||
alignment.c | ||
cache-feroceon-l2.c | ||
cache-l2x0.c | ||
cache-v3.S | ||
cache-v4.S | ||
cache-v4wb.S | ||
cache-v4wt.S | ||
cache-v6.S | ||
cache-v7.S | ||
cache-xsc3l2.c | ||
context.c | ||
copypage-feroceon.c | ||
copypage-v3.c | ||
copypage-v4mc.c | ||
copypage-v4wb.c | ||
copypage-v4wt.c | ||
copypage-v6.c | ||
copypage-xsc3.c | ||
copypage-xscale.c | ||
discontig.c | ||
dma-mapping.c | ||
extable.c | ||
fault-armv.c | ||
fault.c | ||
fault.h | ||
flush.c | ||
init.c | ||
iomap.c | ||
ioremap.c | ||
Kconfig | ||
Makefile | ||
mm.h | ||
mmap.c | ||
mmu.c | ||
nommu.c | ||
pgd.c | ||
proc-arm6_7.S | ||
proc-arm7tdmi.S | ||
proc-arm9tdmi.S | ||
proc-arm720.S | ||
proc-arm740.S | ||
proc-arm920.S | ||
proc-arm922.S | ||
proc-arm925.S | ||
proc-arm926.S | ||
proc-arm940.S | ||
proc-arm946.S | ||
proc-arm1020.S | ||
proc-arm1020e.S | ||
proc-arm1022.S | ||
proc-arm1026.S | ||
proc-feroceon.S | ||
proc-macros.S | ||
proc-sa110.S | ||
proc-sa1100.S | ||
proc-syms.c | ||
proc-v6.S | ||
proc-v7.S | ||
proc-xsc3.S | ||
proc-xscale.S | ||
tlb-v3.S | ||
tlb-v4.S | ||
tlb-v4wb.S | ||
tlb-v4wbi.S | ||
tlb-v6.S | ||
tlb-v7.S |