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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>		16 years ago
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Kbuild	…
atomic.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
auxvec.h	Blackfin: convert simple headers to asm-generic	16 years ago
bfin-global.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bfin5xx_spi.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bfin_rotary.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bfin_sdh.h	…
bfin_simple_timer.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bfin_sport.h	…
bfrom.h	…
bitops.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bitsperlong.h	…
blackfin.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bug.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
bugs.h	Blackfin: convert simple headers to asm-generic	16 years ago
byteorder.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
cache.h	Blackfin: fix missed cache config renames	16 years ago
cacheflush.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
cdef_LPBlackfin.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
checksum.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
clocks.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
context.S	Blackfin: mass clean up of copyright/licensing info	16 years ago
cplb.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
cplbinit.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
cpu.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
cputime.h	Blackfin: convert simple headers to asm-generic	16 years ago
current.h	Blackfin: convert simple headers to asm-generic	16 years ago
def_LPBlackfin.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
delay.h	…
device.h	Blackfin: convert simple headers to asm-generic	16 years ago
div64.h	…
dma-mapping.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
dma.h	…
dpmc.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
early_printk.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
elf.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
emergency-restart.h	Blackfin: convert simple headers to asm-generic	16 years ago
entry.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
errno.h	Blackfin: convert simple headers to asm-generic	16 years ago
fb.h	Blackfin: convert simple headers to asm-generic	16 years ago
fcntl.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
fixed_code.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
flat.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
ftrace.h	Blackfin: update ftrace for latest toolchain	16 years ago
futex.h	Blackfin: convert simple headers to asm-generic	16 years ago
gpio.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
gptimers.h	…
hardirq.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
hw_irq.h	Blackfin: convert simple headers to asm-generic	16 years ago
io.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
ioctl.h	…
ioctls.h	…
ipcbuf.h	…
ipipe.h	Blackfin: fix misnomer of some I-pipe helpers	16 years ago
ipipe_base.h	Blackfin: convert interrupt pipeline to irqflags	16 years ago
irq.h	Blackfin: asm/irq.h: pull in mach/anomaly.h for anomaly defines	16 years ago
irq_handler.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
irq_regs.h	…
irqflags.h	Blackfin: convert interrupt pipeline to irqflags	16 years ago
kdebug.h	…
kgdb.h	…
kmap_types.h	Blackfin: convert simple headers to asm-generic	16 years ago
l1layout.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
linkage.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
local.h	Blackfin: convert simple headers to asm-generic	16 years ago
mem_init.h	Blackfin: bf526-ezbrd: handle different SDRAM chips	16 years ago
mem_map.h	Blackfin: unify memory map headers	16 years ago
mman.h	Blackfin: convert signal/mmap to asm-generic	16 years ago
mmu.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
mmu_context.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
module.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
msgbuf.h	…
mutex.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
nand.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
page.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
page_offset.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
param.h	Blackfin: convert simple headers to asm-generic	16 years ago
pci.h	…
pda.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
percpu.h	Blackfin: convert simple headers to asm-generic	16 years ago
pgalloc.h	Blackfin: convert simple headers to asm-generic	16 years ago
pgtable.h	Blackfin: fix framebuffer mmap bug for nommu	16 years ago
poll.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
portmux.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
posix_types.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
processor.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
ptrace.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
reboot.h	…
resource.h	Blackfin: convert simple headers to asm-generic	16 years ago
rwlock.h	…
scatterlist.h	…
sections.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
segment.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
sembuf.h	…
serial.h	Blackfin: convert simple headers to asm-generic	16 years ago
setup.h	Blackfin: convert simple headers to asm-generic	16 years ago
shmbuf.h	…
shmparam.h	…
sigcontext.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
siginfo.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
signal.h	Blackfin: convert signal/mmap to asm-generic	16 years ago
smp.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
socket.h	…
sockios.h	…
spinlock.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
spinlock_types.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
stat.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
statfs.h	Blackfin: convert simple headers to asm-generic	16 years ago
string.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
swab.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
system.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
termbits.h	Blackfin: convert termios to asm-generic	16 years ago
termios.h	Blackfin: convert termios to asm-generic	16 years ago
thread_info.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
time.h	…
timex.h	…
tlb.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
tlbflush.h	Blackfin: convert page/tlb to asm-generic	16 years ago
topology.h	Blackfin: convert simple headers to asm-generic	16 years ago
trace.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
traps.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
types.h	Blackfin: convert types to asm-generic	16 years ago
uaccess.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
ucontext.h	Blackfin: convert page/tlb to asm-generic	16 years ago
unaligned.h	Blackfin: convert locking primitives to asm-generic	16 years ago
unistd.h	Blackfin: mass clean up of copyright/licensing info	16 years ago
user.h	…
xor.h	…