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
bfin-global.h
Blackfin: mass clean up of copyright/licensing info
2009-10-07 04:36:26 -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
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.h
Blackfin: fix misnomer of some I-pipe helpers
2009-09-16 21:28:30 -04:00
ipipe_base.h
Blackfin: convert interrupt pipeline to irqflags
2009-06-22 21:15:53 -04:00
irq.h
Blackfin: asm/irq.h: pull in mach/anomaly.h for anomaly defines
2009-10-07 04:48:01 -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
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.h
Blackfin: mass clean up of copyright/licensing info
2009-10-07 04:36:26 -04:00
mmu_context.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.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
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.h
Blackfin: mass clean up of copyright/licensing info
2009-10-07 04:36:26 -04:00
spinlock_types.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