22 Jul, 2008
1 commit
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This allow to dynamically generate attributes and share show/store
functions between attributes. Right now most attributes are generated
by special macros and lots of duplicated code. With the attribute
passed it's instead possible to attach some data to the attribute
and then use that in shared low level functions to do different things.I need this for the dynamically generated bank attributes in the x86
machine check code, but it'll allow some further cleanups.I converted all users in tree to the new show/store prototype. It's a single
huge patch to avoid unbisectable sections.Runtime tested: x86-32, x86-64
Compiled only: ia64, powerpc
Not compile tested/only grep converted: sh, arm, avr32Signed-off-by: Andi Kleen
Signed-off-by: Greg Kroah-Hartman
17 Jul, 2008
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (68 commits)
sdio_uart: Fix SDIO break control to now return success or an error
mmc: host driver for Ricoh Bay1Controllers
sdio: sdio_io.c Fix sparse warnings
sdio: fix the use of hard coded timeout value.
mmc: OLPC: update vdd/powerup quirk comment
mmc: fix spares errors of sdhci.c
mmc: remove multiwrite capability
wbsd: fix bad dma_addr_t conversion
atmel-mci: Driver for Atmel on-chip MMC controllers
mmc: fix sdio_io sparse errors
mmc: wbsd.c fix shadowing of 'dma' variable
MMC: S3C24XX: Refuse incorrectly aligned transfers
MMC: S3C24XX: Add maintainer entry
MMC: S3C24XX: Update error debugging.
MMC: S3C24XX: Add media presence test to request handling.
MMC: S3C24XX: Fix use of msecs where jiffies are needed
MMC: S3C24XX: Add MODULE_ALIAS() entries for the platform devices
MMC: S3C24XX: Fix s3c2410_dma_request() return code check.
MMC: S3C24XX: Allow card-detect on non-IRQ capable pin
MMC: S3C24XX: Ensure host->mrq->data is valid
...Manually fixed up bogus executable bits on drivers/mmc/core/sdio_io.c
and include/linux/mmc/sdio_func.h when merging.
16 Jul, 2008
1 commit
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* 'core/stacktrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
generic-ipi: powerpc/generic-ipi tree build failure
stacktrace: fix build failure on sparc64
stacktrace: export save_stack_trace[_tsk]
stacktrace: fix modular build, export print_stack_trace and save_stack_trace
backtrace: replace timer with tasklet + completions
stacktrace: add saved stack traces to backtrace self-test
stacktrace: print_stack_trace() cleanup
debugging: make stacktrace independent from DEBUG_KERNEL
stacktrace: don't crash on invalid stack trace structs
15 Jul, 2008
2 commits
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This is a driver for the MMC controller on the AP7000 chips from
Atmel. It should in theory work on AT91 systems too with some
tweaking, but since the DMA interface is quite different, it's not
entirely clear if it's worth merging this with the at91_mci driver.This driver has been around for a while in BSPs and kernel sources
provided by Atmel, but this particular version uses the generic DMA
Engine framework (with the slave extensions) instead of an
avr32-only DMA controller framework.This driver can also use PIO transfers when no DMA channels are
available, and for transfers where using DMA may be difficult or
impractical for some reason (e.g. the DMA setup overhead is usually
not worth it for very short transfers, and badly aligned buffers or
lengths are difficult to handle.)Currently, the driver only support PIO transfers. DMA support has been
split out to a separate patch to hopefully make it easier to review.The driver has been tested using mmc-block and ext3fs on several SD,
SDHC and MMC+ cards. Reads and writes work fine, with read transfer
rates up to 3.5 MiB/s on fast cards with debugging disabled.The driver has also been tested using the mmc_test module on the same
cards. All tests except 7, 9, 15 and 17 succeed. The first two are
unsupported by all the cards I have, so I don't know if the driver
handles this correctly. The last two fail because the hardware flags a
Data CRC Error instead of a Data Timeout error. I'm not sure how to deal
with that.Documentation for this controller can be found in many data sheets from
Atmel, including the AT32AP7000 data sheet which can be found here:http://www.atmel.com/dyn/products/datasheets.asp?family_id=682
Signed-off-by: Haavard Skinnemoen
Signed-off-by: Pierre Ossman -
* 'core/rodata' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
move BUG_TABLE into RODATA
04 Jul, 2008
1 commit
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Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen
03 Jul, 2008
1 commit
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Andrew Morton reported this against linux-next:
ERROR: ".save_stack_trace" [tests/backtracetest.ko] undefined!
Reported-by: Andrew Morton
Signed-off-by: Ingo Molnar
02 Jul, 2008
9 commits
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Implement Standby support. In this mode, we'll suspend all drivers,
put the SDRAM in self-refresh mode and switch off the HSB bus
("frozen" mode.)Implement Suspend-to-mem support. In this mode, we suspend all
drivers, put the SDRAM into self-refresh mode and switch off all
internal clocks except the 32 kHz oscillator ("stop" mode.)The lowest-level suspend code runs from a small portion of SRAM
allocated at startup time. This gets rid of a small potential race
with the SDRAM where we might try to enter self-refresh mode in the
middle of an icache burst. We also relocate all interrupt and
exception handlers to SRAM during the small window when we enter and
exit the low-power modes.We don't need to do any special tricks to start and stop the PLL. The
main clock is automatically gated by hardware until the PLL is stable.Signed-off-by: Haavard Skinnemoen
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This makes the intc show up in sysfs (probably not very useful), and
allows us to easily add suspend/resume support later.Signed-off-by: Haavard Skinnemoen
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Add SRAM allocator for avr32, which is just a thin wrapper around
genalloc.Signed-off-by: Haavard Skinnemoen
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The SDRAM controller needs a clock in order to respond to our
commands, and suspend doesn't work very well without the SDRAM in
self-refresh mode.Signed-off-by: Haavard Skinnemoen
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Use a quicklist to allocate process PGDs. This is expected to be
slightly faster since we need to copy entries from swapper_pg_dir,
which can stay around for pages on the PGD quick list.Signed-off-by: Haavard Skinnemoen
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Expand the per-process PGDs so that they cover the kernel virtual
memory area as well. This simplifies the TLB miss handler fastpath
since it doesn't have to check for kernel addresses anymore.If a TLB miss happens on a kernel address and a second-level page
table can't be found, we check swapper_pg_dir and copy the PGD entry
into the user PGD if it can be found there.Signed-off-by: Haavard Skinnemoen
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Instead of storing physical addresses along with page flags in the
PGD, store virtual addresses and use NULL to indicate a not present
second-level page table. A non-page-aligned page table indicates a bad
PMD.This simplifies the TLB miss handler since it no longer has to check
the Present bit and no longer has to convert the PGD entry from
physical to virtual address. Instead, it has to check for a NULL
entry, which is slightly cheaper than either.Signed-off-by: Haavard Skinnemoen
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swapper_pg_dir is stored in .bss, so it must already be zeroed out
when we get there.Signed-off-by: Haavard Skinnemoen
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This and the following patches aim to optimize the code dealing with
page tables and TLB operations. Each patch reduces the time it takes
to gzip a 16 MB file slightly, but I expect things like fork() and
mmap() will improve somewhat more.This patch deals with the low-level TLB operations:
* Remove unused _TLBEHI_I define
* Use gcc builtins instead of inline assembly
* Remove a few unnecessary pipeline flushes and nops
* Introduce NR_TLB_ENTRIES define and use it instead of hardcoding it
to 32 a few places throughout the code.
* Use sysreg bitops instead of hardcoded shifts and masks
* Make a few needlessly global functions staticSigned-off-by: Haavard Skinnemoen
28 Jun, 2008
2 commits
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The only thing left in at32ap.c is some PDC stuff. Rename the file to
reflect what it actually does.Signed-off-by: Haavard Skinnemoen
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Combine at32_clock_init() and at32_portmux_init() into
setup_platform() and remove setup_platform() from at32ap.c. No
functional change since all setup_platform() ever did was call those
two functions.Signed-off-by: Haavard Skinnemoen
27 Jun, 2008
12 commits
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Kill the special exception handler sections .tlbx.ex.text,
.tlbr.ex.text, tlbw.ex.text and .scall.text. Use .org instead to place
the handlers at the required offsets from EVBA.Signed-off-by: Haavard Skinnemoen
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Remove lots of unneeded #includes, add #include and
sort alphabetically.Signed-off-by: Haavard Skinnemoen
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The name "mck" causes a conflict on AT91. Call it "pwm_clk" instead.
Signed-off-by: Sedji Gaouaou
Signed-off-by: Haavard Skinnemoen -
This is a minor tweak to the at32ap700x pin configuration for the SPI
input pin (MISO), enabling the on-chip weak pullup (typical 190K) to(a) ensure a fixed data value for missing or input-only slaves;
(b) prevent power waste associated with inputs floating near VDDIO/2.
Atmel's boards have no external pullup or pulldown on these pins, so
it's unlikely other boards would address these issues with external
pulldowns. Were there trouble, board-specific code could turn off
the relevant pullup(s).Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
Basic I2C initialization for the NGW100 board:
- Provide empty i2c device table. Daughtercards may add devices,
and the ATtiny24 could do stuff too.- Set up EXTINT(3) so the ATtiny24 can interrupt the AP7000.
Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
This patch adds the PS/2 interface (PSIF) to the device code, split into
two platform devices, one for each port.The function for adding the PSIF platform device is also added to the
board header file.Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
This patch lets the board code choose which pin out to use for the LCD
interface.On AT32AP7000 the LCDC is wired to two sets of pins, which lets the user
choose between dual ethernet and 32-bit EBI. For the ATNGW100 board it
is vital to have the choice to select the alternative pinout since this
pinout is routed to the external headers.Update ATSTK1002 and ATSTK1004 to use the new interface.
Signed-off-by: Hans-Christian Egtvedt
Signed-off-by: Haavard Skinnemoen -
On the odd chance some code uses a pin as a GPIO IRQ without calling
gpio_request() or gpio_direction_input(), the debug dump should still
show its pin status.Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen -
__raw_readsb() should always use byte accesses, never halfword accesses,
to I/O memory.Signed-off-by: Haavard Skinnemoen
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A signal handler should be able to change the signal stack used for the
next signal by altering the ucontext_t passed as a parameter to the
handler. This does not currently work on avr32 since it doesn't update
the in-kernel signal context from the ucontext_t upon signal handler
return.Fix it by adding a call to do_sigaltstack() from sys_rt_sigreturn(),
bringing it in line with most other architectures.Signed-off-by: Martin Koegler
[haavard.skinnemoen@atmel.com: changed patch description]
Signed-off-by: Haavard Skinnemoen -
On our custom board we have other oscillator rates than on atngw100 and
atstk100x.Currently these rates are hardcoded in arch/avr32/mach-at32ap/at32ap700x.c.
This patch moves them into board specific code.
Signed-off-by: Alex Raimondi
Signed-off-by: Haavard Skinnemoen -
Fixes one of two ext4 build problems:
ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!Signed-off-by: Haavard Skinnemoen
16 Jun, 2008
1 commit
27 May, 2008
1 commit
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Move the AP7 cpufreq init to late_initcall() so that we don't try to
bring up cpufreq until the governor is ready. x86 also uses
late_initcall() for this.Signed-off-by: Haavard Skinnemoen
26 May, 2008
3 commits
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Just provide reasonable defaults for the new stuff. Tickless and
hrtimers are turned on for all boards except ATSTK1004.Signed-off-by: Haavard Skinnemoen
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This patch fixes the following build error:
...
MODPOST 1327 modules
ERROR: "strnlen_user" [drivers/input/misc/uinput.ko] undefined!
...
make[2]: *** [__modpost] Error 1Reported-by: Adrian Bunk
Signed-off-by: Adrian Bunk
Signed-off-by: Haavard Skinnemoen -
This patch fixes the following build error:
...
MODPOST 61 modules
ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!
...
make[2]: *** [__modpost] Error 1Also add an empty line since *_page aren't "String functions".
Signed-off-by: Adrian Bunk
Signed-off-by: Haavard Skinnemoen
25 May, 2008
1 commit
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Signed-off-by: Jan Beulich
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner
17 May, 2008
1 commit
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Signed-off-by: Al Viro
04 May, 2008
1 commit
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This replaces the duplicated arch-specific versions of "sys_pipe()" with
one unified implementation. This removes almost 250 lines of duplicated
code.It's marked __weak, so that *if* an architecture wants to override the
default implementation it can do so by simply having its own replacement
version, since many architectures use alternate calling conventions for
the 'pipe()' system call for legacy reasons (ie traditional UNIX
implementations often return the two file descriptors in registers)I still haven't changed the cris version even though Linus says the BKL
isn't needed. The arch maintainer can easily do it if there are really
no obstacles.Signed-off-by: Ulrich Drepper
Signed-off-by: Linus Torvalds
29 Apr, 2008
2 commits
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Signed-off-by: Christoph Lameter
Cc: Haavard Skinnemoen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to
main tree.Signed-off-by: Denis V. Lunev
Cc: Haavard Skinnemoen
Cc: Alexey Dobriyan
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
