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linux/arch/blackfin/include/asm
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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>
2009-10-08 00:58:15 -04:00
..
atomic.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
auxvec.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
bfin5xx_spi.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bfin_rotary.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bfin_sdh.h Blackfin arch: add SDIO host driver platform data 2009-01-07 23:14:38 +08:00
bfin_simple_timer.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bfin_sport.h Blackfin arch: clean up sports header file 2009-03-28 20:38:17 +08:00
bfin-global.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bfrom.h Blackfin arch: Update some inline assembly, tweak some register constraints 2009-01-07 23:14:39 +08:00
bitops.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
blackfin.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bug.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
bugs.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
byteorder.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cache.h Blackfin: fix missed cache config renames 2009-10-07 04:48:08 -04:00
cacheflush.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cdef_LPBlackfin.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
checksum.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
clocks.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
context.S Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cplb.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cplbinit.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cpu.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
cputime.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
current.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
def_LPBlackfin.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
delay.h Blackfin arch: Remove outdated code 2009-02-04 16:49:45 +08:00
device.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
div64.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
dma-mapping.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
dma.h Blackfin: add SSYNC to set_dma_sg() for descriptor fetching 2009-06-12 06:11:57 -04:00
dpmc.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
early_printk.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
elf.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
emergency-restart.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
entry.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
errno.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
fb.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
fcntl.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
fixed_code.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
flat.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
ftrace.h Blackfin: update ftrace for latest toolchain 2009-09-16 22:10:52 -04:00
futex.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
gpio.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
gptimers.h Blackfin: update gptimers API 2009-06-12 06:11:47 -04:00
hardirq.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
hw_irq.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
io.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
ioctl.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
ioctls.h Blackfin: convert asm/ioctls.h to asm-generic/ioctls.h 2009-06-18 21:40:53 -04:00
ipcbuf.h Blackfin: convert shm/sysv/ipc to asm-generic 2009-06-18 21:40:58 -04:00
ipipe_base.h Blackfin: convert interrupt pipeline to irqflags 2009-06-22 21:15:53 -04:00
ipipe.h Blackfin: fix misnomer of some I-pipe helpers 2009-09-16 21:28:30 -04:00
irq_handler.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
irq_regs.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
irq.h Blackfin: asm/irq.h: pull in mach/anomaly.h for anomaly defines 2009-10-07 04:48:01 -04:00
irqflags.h Blackfin: convert interrupt pipeline to irqflags 2009-06-22 21:15:53 -04:00
Kbuild Blackfin arch: cleanup bfin_sport.h header and export it to userspace 2009-03-05 19:42:43 +08:00
kdebug.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
kgdb.h Blackfin arch: scrub comments/whitespace/cvs keywords 2009-02-04 16:49:45 +08:00
kmap_types.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
l1layout.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
linkage.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
local.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
mem_init.h Blackfin: bf526-ezbrd: handle different SDRAM chips 2009-06-22 21:16:12 -04:00
mem_map.h Blackfin: unify memory map headers 2009-06-22 21:16:07 -04:00
mman.h Blackfin: convert signal/mmap to asm-generic 2009-06-18 21:41:26 -04:00
mmu_context.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
mmu.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
module.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
msgbuf.h Blackfin: convert shm/sysv/ipc to asm-generic 2009-06-18 21:40:58 -04:00
mutex.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
nand.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
page_offset.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
page.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
param.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
pci.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
pda.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
percpu.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
pgalloc.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
pgtable.h Blackfin: fix framebuffer mmap bug for nommu 2009-10-08 00:58:15 -04:00
poll.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
portmux.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
posix_types.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
processor.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
ptrace.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
reboot.h Blackfin arch: Fix bug - Run "reboot" hangs bf518-ezbrd 2009-02-04 16:49:45 +08:00
resource.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
rwlock.h Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code 2009-01-07 23:14:39 +08:00
scatterlist.h Blackfin arch: move include/asm-blackfin header files to arch/blackfin 2008-08-27 10:51:02 +08:00
sections.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
segment.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
sembuf.h Blackfin: convert shm/sysv/ipc to asm-generic 2009-06-18 21:40:58 -04:00
serial.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
setup.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
shmbuf.h Blackfin: convert shm/sysv/ipc to asm-generic 2009-06-18 21:40:58 -04:00
shmparam.h Blackfin: convert shm/sysv/ipc to asm-generic 2009-06-18 21:40:58 -04:00
sigcontext.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
siginfo.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
signal.h Blackfin: convert signal/mmap to asm-generic 2009-06-18 21:41:26 -04:00
smp.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
socket.h Blackfin: convert socket/poll to asm-generic 2009-06-18 21:41:08 -04:00
sockios.h Blackfin: convert socket/poll to asm-generic 2009-06-18 21:41:08 -04:00
spinlock_types.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
spinlock.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
stat.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
statfs.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
string.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
swab.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
system.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
termbits.h Blackfin: convert termios to asm-generic 2009-06-18 21:41:17 -04:00
termios.h Blackfin: convert termios to asm-generic 2009-06-18 21:41:17 -04:00
thread_info.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
time.h Blackfin: add support for gptimer0 as a tick source 2009-06-12 06:11:37 -04:00
timex.h Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us 2008-10-16 23:55:41 +08:00
tlb.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
tlbflush.h Blackfin: convert page/tlb to asm-generic 2009-06-18 21:42:30 -04:00
topology.h Blackfin: convert simple headers to asm-generic 2009-06-18 21:41:13 -04:00
trace.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
traps.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
types.h Blackfin: convert types to asm-generic 2009-06-18 21:42:24 -04:00
uaccess.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
ucontext.h Blackfin: convert page/tlb to asm-generic 2009-06-18 21:42:30 -04:00
unaligned.h Blackfin: convert locking primitives to asm-generic 2009-06-18 21:41:22 -04:00
unistd.h Blackfin: mass clean up of copyright/licensing info 2009-10-07 04:36:26 -04:00
user.h Blackfin: convert user/elf to asm-generic 2009-06-18 21:41:03 -04:00
xor.h Blackfin arch: use generic xor.h 2008-11-18 17:48:22 +08:00