Commits · 9353154edcf901d996e7bd8828e36daee592b44b · nexedi / linux

05 Jul, 2004 4 commits

[PATCH] ppc64: EEH fixes for POWER5 machines (1/2) · 9353154e

Paul Mackerras authored Jul 04, 2004

From: Linas Vepstas <linas@austin.ibm.com>

This patch allows ppc64 to boot on Power5 machines.  The new Power5 PCI
bridge design requires EEH (enhanced PCI error handling) to be enabled for
all PCI devices, not just some PCI devices.  In addition, this patch moves
the check for PCI to ISA bridges out of perf critical code, and into
initialization code.  This also avoids race conditions where the device
type might not have been set.  Also, some whitespace fixes, and some
error-message-printing beautification.
Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

9353154e

[PATCH] v850: Return value from no_action in irq.c · d1ae0015
Miles Bader authored Jul 04, 2004
```
Signed-off-by: Miles Bader <miles@gnu.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
```
d1ae0015

[PATCH] v850: Use __volatile__ qualifier on test_bit asm statements · 8c0a5423

Miles Bader authored Jul 04, 2004

Otherwise recent versions of gcc seem to optimize away some necessary tests.
Signed-off-by: Miles Bader <miles@gnu.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

8c0a5423

[PATCH] v850: Get rid of lvalue-casts in memset.c to make gcc happy · 0989bee0
Miles Bader authored Jul 04, 2004
```
Signed-off-by: Miles Bader <miles@gnu.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
```
0989bee0

04 Jul, 2004 3 commits

[PATCH] swap_unplug_io_fn() nommu update · 6392f9cb

Paul Mundt authored Jul 03, 2004

include/linux/swap.h changed the definition for swap_unplug_io_fn() awhile
back, but mm/nommu.c was never updated to reflect the new definition.
As such, mm/nommu.c presently fails to compile. This fixes it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

6392f9cb

[PATCH] ppc32: compilation failure on ppc32 · b293a6b1

Christoph Hellwig authored Jul 03, 2004

This fixes compilation on ppc32.

The power/smp.o file should be linked only if both SMP and SWSUSPEND
are configured in. It used to do it even without SWSUSPEND.

b293a6b1

Merge bk://gkernel.bkbits.net/libata-2.6 · 3af70258
Linus Torvalds authored Jul 03, 2004
```
into ppc970.osdl.org:/home/torvalds/v2.6/linux
```
3af70258

03 Jul, 2004 29 commits

[libata sata_promise] update driver to use new ->qc_issue hook · 2b50a905

Jeff Garzik authored Jul 03, 2004

The ->qc_issue hook was designed to allow drivers to override some
or all of the actual delivery of the taskfile to hardware.

In the case of Promise, the hardware has its own packet format when doing
read/write DMA commands, but uses traditional ATA taskfile registers
for other types of commands.

2b50a905

[libata] create, and use aga_sg_init[_one] helpers · 82708167
Jeff Garzik authored Jul 03, 2004
```
Move more SCSI-specific code out of libata core.
```
82708167

[libata] split ATA_QCFLAG_SG into ATA_QCFLAG_{SG,SINGLE} · 513e3486

Jeff Garzik authored Jul 03, 2004

In part of the effort to remove SCSI specifics from the libata
internals, remove references to cmd->use_sg. cmd->use_sg
becomes ATA_QCFLAG_SG, and !cmd->use_sg becomes ATA_QCFLAG_SINGLE.

Convenience constant ATA_QCFLAG_DMAMAP is created when the programmer
wishes to refer collectively to ATA_QCFLAG_{SG,SINGLE}.

513e3486

[ata] add ata_ok() inlined helper, and ATA_{DRDY,DF} bit to linux/ata.h · 1ed9ed8f
Jeff Garzik authored Jul 03, 2004

1ed9ed8f

[libata] create, and use, ->irq_clear hook · ea21e4ac

Jeff Garzik authored Jul 03, 2004

This is more conservative in general, and so applies to multiple
controllers.  Specifically it attempts to address irq-related issues
on the Intel ICH5/6 hardware.  On Intel ICH5/6, the BMDMA 'interrupt'
status bit will be set even on non-DMA commands, which software
(and I) did not expect.

This change clears pending interrupts once upon initialization,
and then each time ata_irq_on() is called.

ea21e4ac

[PATCH] remaining cpumask const qualifiers · d2d4b0f3

Paul Jackson authored Jul 03, 2004

The remainder of the const qualifiers on cpumask ops.

My cpumask overhaul missed specifying the const qualifiers
in cpumask.h.  Subsequently, Linus has added some.  The following
should provide the remainder of them.  It also fixes one src vs dst
variable misnaming.

Using crosstool on 2.6.7-mm5, I have built the following
arch's with the following change included:

  alpha ia64 powerpc-405 powerpc-750 sparc sparc64 x86_64
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

d2d4b0f3

Merge bk://bk.arm.linux.org.uk/linux-2.6-serial · 400e9cf2
Linus Torvalds authored Jul 03, 2004
```
into ppc970.osdl.org:/home/torvalds/v2.6/linux
```
400e9cf2
Merge bk://bk.arm.linux.org.uk/linux-2.6-rmk · 2006dfb7
Linus Torvalds authored Jul 03, 2004
```
into ppc970.osdl.org:/home/torvalds/v2.6/linux
```
2006dfb7

[PATCH] apm.c warning fix · 54395016

Andrew Morton authored Jul 02, 2004

arch/i386/kernel/apm.c: In function `suspend':
arch/i386/kernel/apm.c:1221: warning: implicit declaration of function `save_processor_state'
arch/i386/kernel/apm.c:1223: warning: implicit declaration of function `restore_processor_state'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

54395016

[PATCH] s/2.5/2.6/ in MAINTAINERS · ec88ee88

Adrian Bunk authored Jul 02, 2004

s/2.5/2.6/ in MAINTAINERS
Signed-off-by: Adrian Bunk <bunk@fs.tum.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ec88ee88

[PATCH] telephony: support devfs · afa8053d

Paul King authored Jul 02, 2004

Add devfs support to telephony devices.  Only tested with a single
telephony device.  Devices name phone/<minor>.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

afa8053d

[PATCH] dma_get_required_mask() build fix · 4a48e29f

James Bottomley authored Jul 02, 2004

This new function fails to build on sparc64 due to nasty include
dependencies.

Fix that by uninlining it - it was too big for inlining anyway.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

4a48e29f

[PATCH] err2-29: ufs_new_fragments() locking fix · 55228659

Andrew Morton authored Jul 02, 2004

Found by the Stanford locking checker
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

55228659

[PATCH] err2-27: i2o_claim_device() locking fix · 54fe0e96

Andrew Morton authored Jul 02, 2004

Found by the Stanford locking checker
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

54fe0e96

[PATCH] err2-25: dvb_register_i2c_bus() locking fix · f286b63e

Andrew Morton authored Jul 02, 2004

Found by the Stanford locking checker.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

f286b63e

[PATCH] err2-1 dvb_register_i2c_device locking fix · 34969104

Andrew Morton authored Jul 02, 2004

Fix deadlock identified by the Stanford locking checker.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

34969104

[PATCH] err1-14: sb_audio locking fix · bec7fcac

Andrew Morton authored Jul 02, 2004

Lamely fix a straightforward deadlock in sb_audio.c.  Founf by the Stanford
locking checker.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

bec7fcac

[PATCH] err1-2: sscape locking fix · c8c702b1

Andrew Morton authored Jul 02, 2004

Fix deadlock identified by the Stanford locking checker.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

c8c702b1

[PATCH] err1-40: sysvfs locking fix · b10be47d

Andrew Morton authored Jul 02, 2004

Found by the new Stanford locking checker.

Minimal fix for a deadlock in sysvfs: get_branch() can take
read_lock(&pointers_lock), but one caller already has a write_lock.

Perhaps some of the "oh we raced, drop everything and try again" logic in
there can go away now, but this is enugh to fix the obvious deadlock.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

b10be47d

[PATCH] fbcon: optimization for accel_putcs() · 114a8aec

Antonino Daplas authored Jul 02, 2004

I did some simple benchmarking (time cat linux-2.6.7-mm5/MAINTAINERS)
between 2.4 and 2.6 and I am not satisfied with what I see (It's claimed
that fbdev-2.6 is faster than 2.4).  The reason for the claim:

2.4 putcs - draw small amounts of data a lot of times
2.6 putcs - draw larger amounts of data a fewer times

The way characters are drawn in 2.6 is optimal for accelerated drivers but
should also give a speed boost for drivers that rely on software drawing.
However the penaly incurred when preparing a large bitmap from a number of
small bitmaps is currently very high.  This is because of the following
reasons:

1 fb_move_buf_{aligned|unaligned} uses pixmap->{out|in}buf.  This is very
  expensive since outbuf and inbuf methods process only a byte or 2 of data
  at a time.

2 fb_sys_outbuf (the default method for pixmap->outbuf) uses memcpy().
  Not a good choice if moving only a few bytes.

3 fb_move_buf_unaligned (used for fonts such as 12x22) also involves a
  lot of bit operations + a lot of calls to outbuf/inbuf which
  proportionately increases the penaly.

So, I thought of separating fb_move_buf_* to fb_iomove_buf_* and
fb_sysmove_buf_*. 

	fb_iomove_buf_* - used if drivers specified outbuf and inbuf methods
	fb_sysmove_buf_* - used if drivers have no outbuf or inbuf methods

	*Most, if not all drivers fall in the second category.

Below is a table that show differences between 2.4, 2.6 and 2.6 +
abovementioned changes.  To reduce the effect of panning and
fillrect/copyarea, the scrollmode is forced to redraw.

=================================================================
Test Hardware: P4 2G nVidia GeForce2 MX 64
Scrollmode: redraw

time cat linux-2.6.7-mm5/MAINTAINERS

1024x768-8		1024x768-16		1024x768-32
=================================================================
8x16 noaccel (2.4)
real    0m5.490s	real    0m8.535s	real    0m15.388s
user    0m0.001s	user    0m0.000s	user    0m0.001s
sys     0m5.487s	sys     0m8.535s	sys     0m15.386s

8x16 noaccel (2.6)
real    0m5.166s	real    0m7.195s	real    0m12.177s
user    0m0.001s	user    0m0.000s	user    0m0.000s
sys     0m5.164s	sys     0m7.192s	sys     0m12.176s

8x16 noaccel+patch (2.6)
real    0m3.474s	real    0m5.496s	real    0m10.460s
user    0m0.001s	user    0m0.001s	user    0m0.001s
sys     0m5.492s	sys     0m5.492s	sys     0m10.454s
=================================================================
8x16 accel (2.4)
real    0m4.368s	real    0m9.420s	real    0m22.415s
user    0m0.001s	user    0m0.001s	user    0m0.001s
sys     0m4.019s	sys     0m9.384s	sys     0m22.312s

8x16 accel (2.6)
real    0m4.296s	real    0m4.339s	real    0m4.391s
user    0m0.001s	user    0m0.001s	user    0m0.000s
sys     0m4.280s	sys     0m4.336s	sys     0m4.389s

8x16 accel+patch (2.6)
real    0m2.536s	real    0m2.649s	real    0m2.799s
user    0m0.000s	user    0m0.000s	user    0m0.001s
sys     0m2.536s	sys     0m2.645s	sys     0m2.798s
=================================================================

1024x768-8		1024x768-16		1024x768-32
=================================================================
12x22 noaccel (2.4)
real    0m7.883s	real    0m12.175s	real    0m21.134s
user    0m0.000s	user    0m0.000s	user    0m0.001s
sys     0m7.882s	sys     0m12.174s	sys     0m21.129s

12x22 noaccel (2.6)
real    0m10.651s	real    0m13.550s	real    0m21.009s
user    0m0.001s	user    0m0.001s	user    0m0.000s	
sys     0m10.617s	sys     0m13.545s	sys     0m21.008s

12x22 noaccel+patch (2.6)
real    0m4.794s	real    0m7.718s	real    0m15.173s
user    0m0.002s	user    0m0.001s	user    0m0.000s
sys     0m4.792s	sys     0m7.715s	sys     0m15.170s
=================================================================
12x22 accel (2.4)
real    0m3.971s	real    0m9.030s	real    0m21.711s
user    0m0.000s	user    0m0.000s	user    0m0.000s
sys     0m3.950s	sys     0m8.983s	sys     0m21.602s

12x22 accel (2.6)
real    0m9.392s	real    0m9.486s	real    0m9.508s
user    0m0.000s	user    0m0.000s	user    0m0.001s
sys     0m9.392s	sys     0m9.484s	sys     0m9.484s

12x22 accel+patch (2.6)
real    0m3.570s	real    0m3.603s	real    0m3.848s
user    0m0.001s	user    0m0.000s	user    0m0.000s
sys     0m3.567s	sys     0m3.600s	sys     0m3.844s
=================================================================


Summary:

1 2.6 unaccelerated is a bit faster than 2.4 when handling 8x16 fonts,
  with a higher speed differential at high color depths.

2 2.4 unaccelerated is a bit faster than 2.6 when handling 12x22 fonts,
  with a smaller speed difference at high color depths (2.6 is actually a
  bit faster than 2.4 at 32bpp).

3 2.4 rivafb accelerated suffers at high color depths, even becoming
  slower than unaccelerated, possibly because of the 'draw few bytes many
  times' method.

4 2.6 rivafb accelerated has similar performance at any color depth,
  possibly because of 'draw lots of bytes a fewer times' method.

5 With the changes, there is a speed gain of ~1.7 seconds and ~5.7
  seconds with 8x16 and 12x22 fonts respectively indepependent of the color
  depth or acceleration used.  The speed gain is constant but significant.

Below is a patch against 2.6.7-mm5.  The effects will be very noticeable
with drivers that uses SCROLL_REDRAW, but one should still see some speed
gain even if SCROLL_YPAN/YWRAP is used.


Separated fb_sys_move_* into fb_iosys_move_* and fb_sysmove_* to reduce
penalty when constructing fb_image->data from character maps.  In my
testcase (1024x768 SCROLL_REDRAW), I get a ~1.7 second advantage with 'time
cat MAINTAINERS' using 8x16 fonts and ~5.7 seconds with 12x22 fonts.  The
speed gain is independent of acceleration or color depth.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

114a8aec

[PATCH] remove unused variable in mxser.c · f70af0da

Adrian Bunk authored Jul 02, 2004

Signed-off-by: Adrian Bunk <bunk@fs.tum.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

f70af0da

[PATCH] remove unused variable in esp.c · 7adf4cd1

Adrian Bunk authored Jul 02, 2004

Signed-off-by: Adrian Bunk <bunk@fs.tum.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7adf4cd1

[PATCH] i386 math emu build fix · 34123e72

Andrew Morton authored Jul 02, 2004

rmk's patch found a defined-but-unimplemented symbol
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

34123e72

[PATCH] Fix minor quota race · a0a133ff

Jan Kara authored Jul 02, 2004

It fixes a possible race between quotaoff and prune_icache.  The race could
lead to some forgotten pointers to quotas in inodes leading later to BUG
when invalidating quota structures.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

a0a133ff

[PATCH] ia32 NUMA: physnode_map entries can be negative · 3fec7922

Martin J. Bligh authored Jul 02, 2004

Based on work from Bill Irwin <wli@holomorphy.com>

physnode_map[] needs to be signed so that pfn_to_nid() can return negative
values used to detect invalid pfn's.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3fec7922

[PATCH] ppc32: Redwood[56] support for smc91x Ethernet driver · 3796df42

Matt Porter authored Jul 02, 2004

This patch enables the Redwood 5 and Redwood 6 platforms to use the smc91x
ethernet driver.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3796df42

[PATCH] ppc64: set ppc_md.log_error · eaa1db04

Paul Mackerras authored Jul 02, 2004

We have a platform-specific function pointer on ppc64 for a function to log
errors detected by the platform, but it was never getting set.  This patch
sets it on pSeries (the only ppc64 platform which has an error logging
function).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

eaa1db04

[PATCH] ppc64: remove deprecated firmware API · 74713893

Paul Mackerras authored Jul 02, 2004

From: Linas Vepstas <linas@austin.ibm.com>

This patch eliminates the usage of the deprecated ibm,fw-phb-id token for
idnetifying PCI bus heads in favor of the documented, offically supported
mechanism for obtaining this info.  Please note that some versions of
firmware may return incorrect values for the ibm,fw-phb-id token.
Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

74713893

[PATCH] ntfs build fix · d650e991

Andrew Morton authored Jul 02, 2004

gcc-2.95 chokes on this.

Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

d650e991

02 Jul, 2004 4 commits
- [libata sata_sil] add drive to mod15write quirk list · e6920719
  Ricky Beam authored Jul 02, 2004
  
  e6920719
- [libata] add ata_queued_cmd completion hook · f1469785
  Jeff Garzik authored Jul 02, 2004
  
  f1469785
- [libata] add ->qc_issue hook · 14d46339
  Jeff Garzik authored Jul 02, 2004
```
This hook is used when an ATA controller wishes to use
hardware-specific methods of taskfile delivery, rather
than the standard method of bitbanging the ATA shadow
registers.
```
  14d46339
- [PATCH] chown permission check fix for ATTR_GID · db376e4c
  Chris Wright authored Jul 02, 2004
```
SuSE discovered this problem with chown and ATTR_GID.  Make sure user
is authorized to change the group, CAN-2004-0497.
```
  db376e4c