on 64-bit x86 the physical memory limit is controlled by the sparsemem
bits - which are 44 bits right now. But MAXMEM (the max pfn number
e820 parsing will allow to enter our sizing routines) is set to
0x00003fffffffffff, i.e. 46 bits - that's too large because it overlaps
into the vmalloc range.
So couple MAXMEM to MAX_PHYSMEM_BITS, and add a comment that the
maximum of MAX_PHYSMEM_BITS is 45 bits.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'sh/for-2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Disable GENERIC_HARDIRQS_NO__DO_IRQ for unconverted platforms.
sh: maple: Do not pass SLAB_POISON to kmem_cache_create()
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
powerpc/cell/axon-msi: Fix MSI after kexec
powerpc: Fix bootmem reservation on uninitialized node
powerpc: Check for valid hugepage size in hugetlb_get_unmapped_area
Some of the inconsistencies checked for at run time can be detected at
build time already, so duplicate the checks done at run time to also be
done at build time.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: cleanup
Neither of the callers really needs the physical address this function
returns, so eliminate the pointless argument.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: reduce bug table size
This allows reducing the bug table size by half. Perhaps there are
other 64-bit architectures that could also make use of this.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: cleanup, code robustization
The __swp_...() macros silently relied upon which bits are used for
_PAGE_FILE and _PAGE_PROTNONE. After having changed _PAGE_PROTNONE in
our Xen kernel to no longer overlap _PAGE_PAT, live locks and crashes
were reported that could have been avoided if these macros properly
used the symbolic constants. Since, as pointed out earlier, for Xen
Dom0 support mainline likewise will need to eliminate the conflict
between _PAGE_PAT and _PAGE_PROTNONE, this patch does all the necessary
adjustments, plus it introduces a mechanism to check consistency
between MAX_SWAPFILES_SHIFT and the actual encoding macros.
This also fixes a latent bug in that x86-64 used a 6-bit mask in
__swp_type(), and if MAX_SWAPFILES_SHIFT was increased beyond 5 in (the
seemingly unrelated) linux/swap.h, this would have resulted in a
collision with _PAGE_FILE.
Non-PAE 32-bit code gets similarly adjusted for its pte_to_pgoff() and
pgoff_to_pte() calculations.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: change the reporting of empty BTS records
Correctly report a cleared BTS record as invalid. Used to be reported
as branch from 0 to 0.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: cleanup
Optimistically allocate a DS context. It is extremely unlikely that
one already existed. This simplifies the code a lot.
Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This is an alternate fix for a bug reported and fixed by Duane Griffin.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Reported-by: Duane Griffin <duaneg@dghda.com>
Commit 80bba1290a removed one necessary
variable initialization. As a result following warning happened:
CC mm/migrate.o
mm/migrate.c: In function 'sys_move_pages':
mm/migrate.c:1001: warning: 'err' may be used uninitialized in this function
More unfortunately, if find_vma() failed, kernel read uninitialized
memory.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
CC: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With TFTs we can do 5/6/5 instead of 4/4/4. Add a bitfield for this
and use it with TFTs.
Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The upper/lower and left/right margins are mixed up in the driver.
Fix it
Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch prepares the current i.MX1 framebuffer driver for usage in the
whole i.MX family. It switches to readl/writel for register accesses.
Also it moves the register definitions to the driver where they belong.
Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Remove the gpio mux setup function from i.MX framebuffer driver.
This function is platform specific and thus should be done by
the board setup. As there are currently no in-kernel users
of this driver we do not break anything.
Acked-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch removes an inconsistency that became apparent when I
documented the fields of snd_ca0106_details. spi_dac is always
used in a 'boolean' sense, so this cleanup should make no difference.
[Actually, there is one place checking explicitly spi_dac == 1, so
this will change the behavior. But, supposing it's rather a typo,
I apply this clean-up patch -- tiwai]
Signed-off-by: Ben Stanley <Ben.Stanley@exemail.com.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi wrote an email [1] explaining the fields of snd_ca0106_details,
so I captured the information into the ca0106.h header file.
[1] http://article.gmane.org/gmane.linux.alsa.devel/56783/match=takashi+gpio_type
Signed-off-by: Ben Stanley <Ben.Stanley@exemail.com.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Drivers which are going to use it will have to select it and use
mxc_set_irq_fiq() to set FIQ mode for this interrupt.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Adds support for MX1 architecture to UART driver.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Adds MX1 architecture to platform MXC. It will supersede mach-imx
and let it die.
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix GIUS register setup in the mxc_gpio_mode().
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Initial support for mx31moboard platfor with 3 serial ports
and NOR Flash
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
pins definition for UART5 when used in alternate mode 2
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
UART2 pins when used in functionnal mode
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use readl/writel instead of direct pointer deref.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This removes clkrt and cmdat from struct imxmci_host, they are
unused.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This cleans up the warnings issued by the checkpatch script
and remove the file history from the header
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add basic support to the MX31PDK development board, also known
as MX31 3DS or MX31 3-stack board (http://www.freescale.com/imx31pdk).
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: sascha Hauer <s.hauer@pengutronix.de>
The pcm038 module (phyCORE-i.MX27) comes with a 512 KiB static RAM which
can be battery buffered. Add mtd_ram support and configure the chip select
line, to which the sram is attached.
Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
mxc_iomux_set_pad() is buggy on i.MX31 - it calculates the register and
the offset therein wrongly. Fix it.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
