On big systems with lots of memory, don't print out too much during
bootup, and make it easy to find if it is continuous.
on 256G 8 sockets system will get
[ffffe20000000000-ffffe20002bfffff] PMD -> [ffff810001400000-ffff810003ffffff] on node 0
[ffffe2001c700000-ffffe2001c7fffff] potential offnode page_structs
[ffffe20002c00000-ffffe2001c7fffff] PMD -> [ffff81000c000000-ffff8100255fffff] on node 0
[ffffe20038700000-ffffe200387fffff] potential offnode page_structs
[ffffe2001c800000-ffffe200387fffff] PMD -> [ffff810820200000-ffff81083c1fffff] on node 1
[ffffe20040000000-ffffe2007fffffff] PUD ->ffff811027a00000 on node 2
[ffffe20038800000-ffffe2003fffffff] PMD -> [ffff811020200000-ffff8110279fffff] on node 2
[ffffe20054700000-ffffe200547fffff] potential offnode page_structs
[ffffe20040000000-ffffe200547fffff] PMD -> [ffff811027c00000-ffff81103c3fffff] on node 2
[ffffe20070700000-ffffe200707fffff] potential offnode page_structs
[ffffe20054800000-ffffe200707fffff] PMD -> [ffff811820200000-ffff81183c1fffff] on node 3
[ffffe20080000000-ffffe200bfffffff] PUD ->ffff81202fa00000 on node 4
[ffffe20070800000-ffffe2007fffffff] PMD -> [ffff812020200000-ffff81202f9fffff] on node 4
[ffffe2008c700000-ffffe2008c7fffff] potential offnode page_structs
[ffffe20080000000-ffffe2008c7fffff] PMD -> [ffff81202fc00000-ffff81203c3fffff] on node 4
[ffffe200a8700000-ffffe200a87fffff] potential offnode page_structs
[ffffe2008c800000-ffffe200a87fffff] PMD -> [ffff812820200000-ffff81283c1fffff] on node 5
[ffffe200c0000000-ffffe200ffffffff] PUD ->ffff813037a00000 on node 6
[ffffe200a8800000-ffffe200bfffffff] PMD -> [ffff813020200000-ffff8130379fffff] on node 6
[ffffe200c4700000-ffffe200c47fffff] potential offnode page_structs
[ffffe200c0000000-ffffe200c47fffff] PMD -> [ffff813037c00000-ffff81303c3fffff] on node 6
[ffffe200c4800000-ffffe200e07fffff] PMD -> [ffff813820200000-ffff81383c1fffff] on node 7
instead of a very long print out...
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
typical case: four sockets system, every node has 4g ram, and we are using:
memmap=10g$4g
to mask out memory on node1 and node2
when numa is enabled, early_node_mem is used to get node_data and node_bootmap.
if it can not get memory from the same node with find_e820_area(), it will
use alloc_bootmem to get buff from previous nodes.
so check it and print out some info about it.
need to move early_res_to_bootmem into every setup_node_bootmem.
and it takes range that node has. otherwise alloc_bootmem could return addr
that reserved early.
depends on "mm: make reserve_bootmem can crossed the nodes".
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
"mm: make reserve_bootmem can crossed the nodes" provides new
reserve_bootmem(), let reserve_bootmem_generic() use that.
reserve_bootmem_generic() is used to reserve initramdisk, so this way
we can make sure even when bootloader or kexec load ranges cross the
node memory boundaries, reserve_bootmem still works.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
split reserve_bootmem_core() into two functions, one which checks
conflicts, and one which sets the bits.
and make reserve_bootmem to loop bdata_list to cross the nodes.
user could be crashkernel and ramdisk..., in case the range provided
by those externalities crosses the nodes.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
need offset alignment when node_boot_start's alignment is less than
the alignment required.
use local node_boot_start to match alignment - so don't add extra operation
in search loop.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Make the nodes other than node 0 use bdata->last_success for fast
search too.
We need to use __alloc_bootmem_core() for vmemmap allocation for other
nodes when numa and sparsemem/vmemmap are enabled.
Also, make fail_block path increase i with incr only after ALIGN
to avoid extra increase when size is larger than align.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
vmemmap allocation currently has this layout:
[ffffe20000000000-ffffe200001fffff] PMD ->ffff810001400000 on node 0
[ffffe20000200000-ffffe200003fffff] PMD ->ffff810001800000 on node 0
[ffffe20000400000-ffffe200005fffff] PMD ->ffff810001c00000 on node 0
[ffffe20000600000-ffffe200007fffff] PMD ->ffff810002000000 on node 0
[ffffe20000800000-ffffe200009fffff] PMD ->ffff810002400000 on node 0
...
note that there is a 2M hole between them - not optimal.
the root cause is that usemap (24 bytes) will be allocated after every 2M
mem_map, and it will push next vmemmap (2M) to the next (2M) alignment.
solution: try to allocate the mem_map continously.
after the patch, we get:
[ffffe20000000000-ffffe200001fffff] PMD ->ffff810001400000 on node 0
[ffffe20000200000-ffffe200003fffff] PMD ->ffff810001600000 on node 0
[ffffe20000400000-ffffe200005fffff] PMD ->ffff810001800000 on node 0
[ffffe20000600000-ffffe200007fffff] PMD ->ffff810001a00000 on node 0
[ffffe20000800000-ffffe200009fffff] PMD ->ffff810001c00000 on node 0
...
which is the ideal layout.
and usemap will share a page because of they are allocated continuously too:
sparse_early_usemap_alloc: usemap = ffff810024e00000 size = 24
sparse_early_usemap_alloc: usemap = ffff810024e00080 size = 24
sparse_early_usemap_alloc: usemap = ffff810024e00100 size = 24
sparse_early_usemap_alloc: usemap = ffff810024e00180 size = 24
...
so we make the bootmem allocation more compact and use less memory
for usemap => mission accomplished ;-)
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-bigbox-bootparam:
x86, boot: Document for linked list of struct setup_data
x86, boot: export linked list of struct setup_data via debugfs
x86, boot: add linked list of struct setup_data
x86, boot: add free_early to early reservation machanism
Documentation for linked list of struct setup_data.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Export linked list of struct setup_data via debugfs.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch adds a field of 64-bit physical pointer to NULL terminated
single linked list of struct setup_data to real-mode kernel
header. This is used as a more extensible boot parameters passing
mechanism.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add free_early to early reservation mechanism - this way early bootup
failure paths can stop wasting memory.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
disable /dev/mem mmap of RAM with PAT. It makes things safer and
eliminates aliasing. A future improvement would be to avoid the
range_is_allowed duplication.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes:
x86 PAT: decouple from nonpromisc devmem
x86 PAT: tone down debugging messages
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
V4L/DVB (7751): ir-kbd-i2c: Save a temporary memory allocation in ir_probe
V4L/DVB (7750): au0828/ cleanups and fixes
V4L/DVB (7748): tuner-core: some adjustments at tuner logs, if debug enabled
V4L/DVB (7746): pvrusb2: make signed one-bit bitfields unsigned
V4L/DVB (7744): pvrusb2-dvb: add atsc/qam support for Hauppauge pvrusb2 model 751xx
V4L/DVB (7742): cx88: Add support for the DViCO FusionHDTV_7_GOLD digital modes
V4L/DVB (7741): s5h1411: Adding support for this ATSC/QAM demodulator
V4L/DVB (7740): tuner-xc2028.c dubious !x & y
V4L/DVB (7739): mt312.h: dubious one-bit signed bitfield
V4L/DVB (7735): Fix compilation for au0828
V4L/DVB (7734): em28xx: copy and paste error in em28xx_init_isoc
V4L/DVB (7733): blackbird_find_mailbox negative return ignored in blackbird_initialize_codec()
V4L/DVB (7732): vivi: fix a warning
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (61 commits)
ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flag
sis5513: fail early for unsupported chipsets
it821x: fix kzalloc() failure handling
qd65xx: use IDE_HFLAG_SINGLE host flag
qd65xx: always use ->selectproc method
ide-cd: put proc-related functions together under single ifdef
ide-cd: Replace __FUNCTION__ with __func__
IDE: Coding Style fixes to drivers/ide/ide-cd.c
IDE: Coding Style fixes to drivers/ide/pci/cy82c693.c
IDE: Coding Style fixes to drivers/ide/pci/it8213.c
IDE: Coding Style fixes to drivers/ide/ide-floppy.c
IDE: Coding Style fixes to drivers/ide/legacy/ali14xx.c
IDE: Coding Style fixes to drivers/ide/legacy/hd.c
IDE: Coding Style fixes to drivers/ide/pci/cmd640.c
IDE: Coding Style fixes to drivers/ide/pci/opti621.c
IDE: Coding Style fixes to drivers/ide/ide-pnp.c
IDE: Coding Style fixes to drivers/ide/ide-proc.c
IDE: Coding Style fixes to drivers/ide/legacy/ide-4drives.c
IDE: Coding Style fixes to drivers/ide/legacy/umc8672.c
IDE: Coding Style fixes to drivers/ide/pci/generic.c
...
Linus pointed it out that PAT should not depend on NONPROMISC_DEVMEM.
Also make PAT non-default.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
agp: convert drivers/char/agp/frontend.c to use unlocked_ioctl
agp: fix shadowed variable warning in amd-k7-agp.c
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: _end is shadowing real _end, just rename it.
drm/vbl rework: rework how the drm deals with vblank.
drm: reorganise minor number handling using backported modesetting code.
drm/i915: Handle tiled buffers in vblank tasklet
drm/i965: On I965, use correct 3DSTATE_DRAWING_RECTANGLE command in vblank
drm: Remove unneeded dma sync in ATI pcigart alloc
drm: Fix mismerge of non-coherent DMA patch
Arrgghhh...
Sorry about that, I'd been sure I'd folded that one, but it actually got
lost. Please apply - that breaks execve().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen Rothwell reported that linux-next did not build on powerpc64.
make optimized inlining dependent on architecture opt-in.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
add CONFIG_OPTIMIZE_INLINING=y.
allow gcc to optimize the kernel image's size by uninlining
functions that have been marked 'inline'. Previously gcc was
forced by Linux to always-inline these functions via a gcc
attribute:
#define inline inline __attribute__((always_inline))
Especially when the user has already selected
CONFIG_OPTIMIZE_FOR_SIZE=y this can make a huge difference in
kernel image size (using a standard Fedora .config):
text data bss dec hex filename
5613924 562708 3854336 10030968 990f78 vmlinux.before
5486689 562708 3854336 9903733 971e75 vmlinux.after
that's a 2.3% text size reduction (!).
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Check for IDE_HFLAG_NO_SET_MODE host flag in ide_set_pio(),
ide_set_[pio,dma]_mode(), ide_set_xfer_rate() and set_pio_mode().
* Remove no longer needed IDE_HFLAG_NO_SET_MODE host flag checking
from ide_tune_dma().
* Remove superfluous ->set_pio_mode checking from do_special().
This is a part of preparations for adding 'struct ide_port_ops'.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Factor out chipset family detection from init_chipset_sis5513()
to sis_find_family().
* Use sis_find_family() in sis5513_init_one() to fail early if the
chipset is unsupported.
* Keep a local copy sis5513_chipset in sis5513_init_one()
and set .udma_mask according to chipset family.
* Remove no longer need ->ultra_mask setting from init_hwif_sis5513().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Allocate 'struct it821x_dev' objects for both ports in it821x_init_one().
Fixes potential OOPS in it821x_quirkproc() (uses 'itdev' unconditionally)
and other problems ('itdev' is needed for correct operation of the driver).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Set IDE_HFLAG_SINGLE host flag in qd_probe() for QD6500 and QD6580
with the second port disabled.
* Check for IDE_HFLAG_SINGLE in qd6580_port_init_devs() instead of
using cached value of QD6580 Control register.
* Don't cache QD6580 Control register value in hwif->config_data
(bits 8-15) and remove no longer needed QD_CONTROL() macro.
* Cache QD65xx base address in hwif->config_data (bits 8-15)
instead of hwif->select_data.
* Set hwif->config_data in qd_probe() and remove qd_setup() helper.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
qd_select() checks itself whether timings should be reprogrammed so
remove superfluous qd_timing_ok() and always use ->selectproc method
(rename qd_select() to qd65xx_select() while at it).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error free, only a few
WARNING: line over 80 characters
are left.
Compile tested.
[bart: md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error free.
Compile tested.
[bart: minor fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Fix a lot of errors and warnings.
Compile tested.
[bart: some fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Fix all the errors and a few warnings.
Compile tested.
[bart: some fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Lot of errors and warnings removed.
Compile tested.
[bart: minor fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error and warning free.
Compile tested.
[bart: md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error free.
Compile tested.
[bart: minor fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
About 300 errors and warnings fixed.
File is now error free.
Compile tested.
[bart: minor fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error and warning free.
Compile tested.
[bart: md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
File is now error free.
Compile tested.
[bart: minor fixes, md5sum checked]
Signed-off-by: Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
All host drivers now either set hwif->mmio or reserve continuous
I/O resources so remove no longer needed hwif->straight8 flag
and never reached code for 'hwif->straight8 == 0' case.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
