Commit graph

530 commits

Author SHA1 Message Date
Linus Torvalds
53bcef6063 Merge branch 'for-linus' of git://www.jni.nu/cris
* 'for-linus' of git://www.jni.nu/cris: (51 commits)
  CRIS: Fix alignment problem for older ld
  CRIS: Always dump registers for segfaulting process.
  CRIS: Add config for pausing a seg-faulting process
  CRIS: Don't take faults while in_atomic
  CRIS: Fixup lookup for delay slot faults
  CRIS: Discard exit.text and .data at runtime
  CRIS: Add cache aligned and read mostly data sections
  CRIS: Return something from profile write
  CRIS: Add ARTPEC-3 and timestamps for sync-serial
  CRIS: Better ARTPEC-3 support for gpio
  CRIS: Add include guard
  CRIS: Better handling of pinmux settings
  CRIS: New DMA defines for ARTPEC-3
  CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil
  CRIS: Pagetable for ARTPEC-3
  CRIS: Machine dependent memmap.h
  CRIS: Check if pointer is set before using it
  CRIS: Machine dependent dma.h
  CRIS: Define __read_mostly for CRISv32
  CRIS: Discard .note.gnu.build-id section
  ...
2010-08-08 10:08:26 -07:00
Linus Torvalds
b62ad9ab18 Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  um: Fix read_persistent_clock fallout
  kgdb: Do not access xtime directly
  powerpc: Clean up obsolete code relating to decrementer and timebase
  powerpc: Rework VDSO gettimeofday to prevent time going backwards
  clocksource: Add __clocksource_updatefreq_hz/khz methods
  x86: Convert common clocksources to use clocksource_register_hz/khz
  timekeeping: Make xtime and wall_to_monotonic static
  hrtimer: Cleanup direct access to wall_to_monotonic
  um: Convert to use read_persistent_clock
  timkeeping: Fix update_vsyscall to provide wall_to_monotonic offset
  powerpc: Cleanup xtime usage
  powerpc: Simplify update_vsyscall
  time: Kill off CONFIG_GENERIC_TIME
  time: Implement timespec_add
  x86: Fix vtime/file timestamp inconsistencies

Trivial conflicts in Documentation/feature-removal-schedule.txt

Much less trivial conflicts in arch/powerpc/kernel/time.c resolved as
per Thomas' earlier merge commit 47916be4e2 ("Merge branch
'powerpc.cherry-picks' into timers/clocksource")
2010-08-06 13:18:29 -07:00
Linus Torvalds
4aed2fd8e3 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (162 commits)
  tracing/kprobes: unregister_trace_probe needs to be called under mutex
  perf: expose event__process function
  perf events: Fix mmap offset determination
  perf, powerpc: fsl_emb: Restore setting perf_sample_data.period
  perf, powerpc: Convert the FSL driver to use local64_t
  perf tools: Don't keep unreferenced maps when unmaps are detected
  perf session: Invalidate last_match when removing threads from rb_tree
  perf session: Free the ref_reloc_sym memory at the right place
  x86,mmiotrace: Add support for tracing STOS instruction
  perf, sched migration: Librarize task states and event headers helpers
  perf, sched migration: Librarize the GUI class
  perf, sched migration: Make the GUI class client agnostic
  perf, sched migration: Make it vertically scrollable
  perf, sched migration: Parameterize cpu height and spacing
  perf, sched migration: Fix key bindings
  perf, sched migration: Ignore unhandled task states
  perf, sched migration: Handle ignored migrate out events
  perf: New migration tool overview
  tracing: Drop cpparg() macro
  perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call
  ...

Fix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c
2010-08-06 09:30:52 -07:00
Jesper Nilsson
85d9865721 CRIS: Fix alignment problem for older ld
CRISv10 uses a pretty old ld, which does not allow ALIGN(0),
(It becomes . = 0;) so instead we align to 1 byte.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 18:30:01 +02:00
Jesper Nilsson
2d495ebc55 CRIS: Always dump registers for segfaulting process.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 18:28:49 +02:00
Jesper Nilsson
b4e8a1813c CRIS: Add config for pausing a seg-faulting process
Put it on a wait queue, so we can attach gdb to the process
to debug it instead of just killing it.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 18:28:48 +02:00
Jesper Nilsson
028c1f6817 CRIS: Don't take faults while in_atomic
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 18:28:48 +02:00
Jesper Nilsson
a90993c693 CRIS: Fixup lookup for delay slot faults
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 18:28:47 +02:00
Jesper Nilsson
7c8a25b544 CRIS: Discard exit.text and .data at runtime
This allows us to handle references from __bug_table.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 14:10:04 +02:00
Jesper Nilsson
dcb313c23f CRIS: Add cache aligned and read mostly data sections
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 14:03:07 +02:00
Jesper Nilsson
c1c8f55874 CRIS: Return something from profile write
Even if it doesn't matter, we should return something.
Also, clean up some formatting.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:40 +02:00
Jesper Nilsson
72e08db187 CRIS: Add ARTPEC-3 and timestamps for sync-serial
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:39 +02:00
Jesper Nilsson
4f248d1cea CRIS: Better ARTPEC-3 support for gpio
Add PWM support, correct comment for ARTPEC-3.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:38 +02:00
Jesper Nilsson
97a644461d CRIS: Add include guard
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:38 +02:00
Jesper Nilsson
0c07d3abc8 CRIS: Better handling of pinmux settings
Depending on eth, eth_mido and geth fields in wr_hwprot, don't set
corresponding pins on gpio port b to gpio mode. This avoids
re-resetting the ethernet PHY should this already have been done.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:37 +02:00
Jesper Nilsson
6f09963caf CRIS: New DMA defines for ARTPEC-3
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:36 +02:00
Jesper Nilsson
da2af0a771 CRIS: __do_strncpy_from_user: Don't read the byte beyond the nil
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:36 +02:00
Jesper Nilsson
2dc1c40c6e CRIS: Pagetable for ARTPEC-3
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:35 +02:00
Jesper Nilsson
32e7a8ba8d CRIS: Machine dependent memmap.h
Move the old one to mach-fs and replace with a new one that
only include the correct one for the machine architecture.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:35 +02:00
Jesper Nilsson
243ba2fa46 CRIS: Check if pointer is set before using it
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:34 +02:00
Jesper Nilsson
a3af54ffa9 CRIS: Machine dependent dma.h
Move the old one to mach-fs and replace with a new one that
only include the correct one for the machine architecture.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:34 +02:00
Jesper Nilsson
6fdf581e9d CRIS: Define __read_mostly for CRISv32
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:33 +02:00
Jesper Nilsson
d717809bce CRIS: Discard .note.gnu.build-id section
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:33 +02:00
Jesper Nilsson
76fdf67bb5 CRIS: Avoid compilation warning for puts
Rename to aputs.
Also, simplify code by moving some common code out to macros.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:32 +02:00
Jesper Nilsson
ac93f62179 CRIS: Add debug for assembler macros
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:31 +02:00
Jesper Nilsson
7ec280c52c CRIS: Update for ARTPEC-3
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:31 +02:00
Jesper Nilsson
98560bd83e CRIS: Add more delays in DDR setup
Also, make DDR latency configurable.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:30 +02:00
Jesper Nilsson
2d0503d1a6 CRIS: Add debug info for assembler code
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:30 +02:00
Jesper Nilsson
3a38125d3e CRIS: Add debug info for assembler code
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:29 +02:00
Jesper Nilsson
5f9ac92f3d CRIS: Add debug symbols for assembler code
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:29 +02:00
Jesper Nilsson
e2ee9bb225 CRIS: Minor formatting fix in traps.c
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:15 +02:00
Jesper Nilsson
399233265c CRIS: v32: Correct auto-restart of syscalls
Register number was incorrect in syscalls
that go via the restartblock (e.g, poll).

Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:02:01 +02:00
Jesper Nilsson
e281a31e1c CRIS: More ARTPEC-3 support and i2c-boardinfo.
Add standard i2d-devices.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:01:50 +02:00
Jesper Nilsson
c9cbf097b7 CRIS: Remove obsolete pinmux.c, now machine dependent.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:01:29 +02:00
Jesper Nilsson
ab43d14dab CRIS: kgdb: Fix compilation errors
Paths were not correct and pack_hex_byte() takes two arguments.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:01:12 +02:00
Jesper Nilsson
e336285db2 CRIS: v32: Correct path for intr_vect.h
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:53 +02:00
Jesper Nilsson
e75a320eda CRIS: v32: Better irq mapping code
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:45 +02:00
Jesper Nilsson
403a1c4f13 CRIS: v32: Correct address for romfs in the image
Is after __bss_start, not __vmlinux_end

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:30 +02:00
Jesper Nilsson
345c52e079 CRIS: Additional mmu settings for ARTPEC-3
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:20 +02:00
Jesper Nilsson
cd4f20110c CRIS: Faster syscall entry for CRISv32.
Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:09 +02:00
Jesper Nilsson
43f6cdd769 CRIS: Simple insn reschedule to avoid interlocks.
Brings down the CPI from ~1.5 to ~1.1.

Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 13:00:00 +02:00
Jesper Nilsson
a80a635f3d CRIS: Add debug for assembler functions
Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:43 +02:00
Jesper Nilsson
b4973ae9da CRIS: Correct address of the romfs in boot image
The romfs should land after __init_end

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:43 +02:00
Jesper Nilsson
d77eab8cb1 CRIS: Fasttimer: Remove obsolete ifdef
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:42 +02:00
Jesper Nilsson
5866d7ef95 CRIS: Better link to rs485 in help
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:42 +02:00
Jesper Nilsson
fcb31dbb36 CRIS: Remove CVS tag.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:41 +02:00
Jesper Nilsson
0e0aff2126 CRIS: v10: remove all BKL usage
We don't need to take the BKL here.
Also fixes compile error after last commit (smp_lock.h was not included)

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:28 +02:00
Jesper Nilsson
60362158e2 CRIS: gpio: don't call copy_to_user()/copy_from_user() while holding spinlocks
copy_to_user()/copy_from_user() must not be used with spinlocks held.
Move locks inside each case so we have better control of when the locks
are held.

Also, since we use spinlocks, we don't need to hold the BKL, so remove it.

Reported-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:14 +02:00
Joe Perches
16bc0fe5ce arch/cris: Remove unnecessary casts of private_data
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:06 +02:00
Jesper Nilsson
096b7bdc86 cris: autoconvert trivial BKL users to private mutex
All these files use the big kernel lock in a trivial
way to serialize their private file operations,
typically resulting from an earlier semi-automatic
pushdown from VFS.

None of these drivers appears to want to lock against
other code, and they all use the BKL as the top-level
lock in their file operations, meaning that there
is no lock-order inversion problem.

Consequently, we can remove the BKL completely,
replacing it with a per-file mutex in every case.
Using a scripted approach means we can avoid
typos.

file=$1
name=$2
if grep -q lock_kernel ${file} ; then
    if grep -q 'include.*linux.mutex.h' ${file} ; then
            sed -i '/include.*<linux\/smp_lock.h>/d' ${file}
    else
            sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file}
    fi
    sed -i ${file} \
        -e "/^#include.*linux.mutex.h/,$ {
                1,/^\(static\|int\|long\)/ {
                     /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex);

} }"  \
    -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \
    -e '/[      ]*cycle_kernel_lock();/d'
else
    sed -i -e '/include.*\<smp_lock.h\>/d' ${file}  \
                -e '/cycle_kernel_lock()/d'
fi

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04 12:59:06 +02:00