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Thomas Chou 59bd00c850 Blackfin: fix framebuffer mmap bug for nommu ... The patch added a special get_unmapped_area for framebuffer which was hooked to the file ops in drivers/video/fbmem.c. This is needed since v2.6.29-rc1 where nommu vma management was updated, and mmap of framebuffer caused kernel BUG panic. You may turn on "Debug the global anon/private NOMMU mapping region tree" config to such message. As Documentation/nommu-mmap.txt said, "To provide shareable character device support, a driver must provide a file->f_op->get_unmapped_area() operation. The mmap() routines will call this to get a proposed address for the mapping." With this change, user space should call mmap for framebuffer using shared map. Or it can try shared map first, then private map if failed. This shared map usage is now consistent between mmu and nommu. The sys_ file may not be a good place for this patch. But there is a similar one for sparc. I tested a similar patch on nios2nommu, though I don't have a blackfin board to test. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>		15 years ago
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Kbuild	…
atomic.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
auxvec.h	…
bfin-global.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bfin5xx_spi.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bfin_rotary.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bfin_sdh.h	…
bfin_simple_timer.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bfin_sport.h	…
bfrom.h	…
bitops.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bitsperlong.h	…
blackfin.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bug.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
bugs.h	…
byteorder.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
cache.h	Blackfin: fix missed cache config renames	15 years ago
cacheflush.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
cdef_LPBlackfin.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
checksum.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
clocks.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
context.S	Blackfin: mass clean up of copyright/licensing info	15 years ago
cplb.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
cplbinit.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
cpu.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
cputime.h	…
current.h	…
def_LPBlackfin.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
delay.h	…
device.h	…
div64.h	…
dma-mapping.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
dma.h	…
dpmc.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
early_printk.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
elf.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
emergency-restart.h	…
entry.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
errno.h	…
fb.h	…
fcntl.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
fixed_code.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
flat.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
ftrace.h	…
futex.h	…
gpio.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
gptimers.h	…
hardirq.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
hw_irq.h	…
io.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
ioctl.h	…
ioctls.h	…
ipcbuf.h	…
ipipe.h	…
ipipe_base.h	…
irq.h	Blackfin: asm/irq.h: pull in mach/anomaly.h for anomaly defines	15 years ago
irq_handler.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
irq_regs.h	…
irqflags.h	…
kdebug.h	…
kgdb.h	…
kmap_types.h	…
l1layout.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
linkage.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
local.h	…
mem_init.h	…
mem_map.h	…
mman.h	…
mmu.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
mmu_context.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
module.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
msgbuf.h	…
mutex.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
nand.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
page.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
page_offset.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
param.h	…
pci.h	…
pda.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
percpu.h	…
pgalloc.h	…
pgtable.h	Blackfin: fix framebuffer mmap bug for nommu	15 years ago
poll.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
portmux.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
posix_types.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
processor.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
ptrace.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
reboot.h	…
resource.h	…
rwlock.h	…
scatterlist.h	…
sections.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
segment.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
sembuf.h	…
serial.h	…
setup.h	…
shmbuf.h	…
shmparam.h	…
sigcontext.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
siginfo.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
signal.h	…
smp.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
socket.h	…
sockios.h	…
spinlock.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
spinlock_types.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
stat.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
statfs.h	…
string.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
swab.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
system.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
termbits.h	…
termios.h	…
thread_info.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
time.h	…
timex.h	…
tlb.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
tlbflush.h	…
topology.h	…
trace.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
traps.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
types.h	…
uaccess.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
ucontext.h	…
unaligned.h	…
unistd.h	Blackfin: mass clean up of copyright/licensing info	15 years ago
user.h	…
xor.h	…