openwrt/staging/blogic.git
14 years agodrm/radeon/kms: fix lock ordering in ring, ib handling
Alex Deucher [Thu, 6 May 2010 15:02:24 +0000 (11:02 -0400)]
drm/radeon/kms: fix lock ordering in ring, ib handling

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Use fences to gate entry to reclocking on <r600
Matthew Garrett [Fri, 30 Apr 2010 19:48:23 +0000 (15:48 -0400)]
radeon: Use fences to gate entry to reclocking on <r600

GUI idle interrupts don't seem to work terribly well on r500 and earlier,
so let's use a fence instead.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Split out ring locking and allocation
Matthew Garrett [Fri, 30 Apr 2010 19:24:17 +0000 (15:24 -0400)]
radeon: Split out ring locking and allocation

We need to handle the ring while we've already locked it, so split out
the allocation and commit functions in order to allow them to be used.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: enable misc pm power state features on r1xx-r4xx
Alex Deucher [Fri, 30 Apr 2010 19:34:12 +0000 (15:34 -0400)]
drm/radeon/kms: enable misc pm power state features on r1xx-r4xx

voltage drop, dynamic voltage, dynamic sclk, pcie lane adjust, etc,

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: enable misc pm power state features on r5xx, rs6xx
Alex Deucher [Thu, 29 Apr 2010 20:33:38 +0000 (16:33 -0400)]
drm/radeon/kms: enable misc pm power state features on r5xx, rs6xx

voltage drop, dynamic voltage, dynamic sclk, pcie lane adjust, etc,

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: re-enable gui idle interrupts on r6xx+
Alex Deucher [Thu, 29 Apr 2010 20:14:02 +0000 (16:14 -0400)]
drm/radeon/kms: re-enable gui idle interrupts on r6xx+

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: take vram mutex pointer before derefing object.
Dave Airlie [Thu, 29 Apr 2010 08:37:59 +0000 (18:37 +1000)]
drm/radeon/kms: take vram mutex pointer before derefing object.

since derefing the object might free it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: more pm fixes
Alex Deucher [Thu, 29 Apr 2010 04:22:43 +0000 (00:22 -0400)]
drm/radeon/kms: more pm fixes

- disable gui idle interrupt use
  Seems to hang some r5xx chips
- move vbl range check into
  existing vbl check function in
  radeon_pm.c
- disable crtc mc acccess for the
  whole reclocking process

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: move radeon_fixed.h to shared drm_fixed.h header
Ben Skeggs [Wed, 28 Apr 2010 01:46:42 +0000 (11:46 +1000)]
drm: move radeon_fixed.h to shared drm_fixed.h header

Will be used by nouveau driver also in the near future.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Enable memory reclocking on r100-500
Matthew Garrett [Wed, 28 Apr 2010 18:45:05 +0000 (14:45 -0400)]
radeon: Enable memory reclocking on r100-500

This seems to be relatively stable now, so enable it for these chipsets
too.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Try harder to ensure we reclock in vblank
Matthew Garrett [Wed, 28 Apr 2010 16:13:06 +0000 (12:13 -0400)]
radeon: Try harder to ensure we reclock in vblank

The vblank interrupt on r600 doesn't seem to be especially reliable, so
perform some sanity checks before the actual reclock.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Fix locking in power management paths
Matthew Garrett [Tue, 27 Apr 2010 21:16:58 +0000 (17:16 -0400)]
radeon: Fix locking in power management paths

The ttm code could take vram_mutex followed by cp_mutex, while the
reclocking code would do the reverse. Hilarity could ensue.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Make sure that we determine the correct PM state before transition
Matthew Garrett [Tue, 27 Apr 2010 17:58:46 +0000 (13:58 -0400)]
radeon: Make sure that we determine the correct PM state before transition

We need to choose the correct PM state to transition into before starting
the actual change. Call radeon_get_power_state() at the top of the clock
setting to do so.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Enable memory reclockong on r600
Matthew Garrett [Mon, 26 Apr 2010 21:01:16 +0000 (17:01 -0400)]
radeon: Enable memory reclockong on r600

With luck, dynamic memory reclocking on r600 should be stable with
the previous patches. Enable it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Stop the ttm workqueue while reclocking
Matthew Garrett [Mon, 26 Apr 2010 20:02:26 +0000 (16:02 -0400)]
radeon: Stop the ttm workqueue while reclocking

The ttm bo workqueue may touch objects while we're reclocking, so make
sure it's blocked until we're done.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agottm: Provide an API for starting and stopping the delayed workqueue
Matthew Garrett [Mon, 26 Apr 2010 20:00:09 +0000 (16:00 -0400)]
ttm: Provide an API for starting and stopping the delayed workqueue

We want to be able to prevent the delayed workqueue from changing state
while we're reclocking, so add an API to block and unblock it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Take drm struct_mutex over reclocking
Matthew Garrett [Mon, 26 Apr 2010 19:57:01 +0000 (15:57 -0400)]
radeon: Take drm struct_mutex over reclocking

We need to block the drm core from doing anything that may touch our vram
during reclock, so take the drm mutex for the duration.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Unmap vram pages when reclocking
Matthew Garrett [Mon, 26 Apr 2010 19:52:20 +0000 (15:52 -0400)]
radeon: Unmap vram pages when reclocking

Touching vram while the card is reclocking can lead to lockups. Unmap
any pages that could be touched by the CPU and block any accesses to
vram until the reclocking is complete.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoradeon: Unify PM entry paths
Matthew Garrett [Mon, 26 Apr 2010 19:45:23 +0000 (15:45 -0400)]
radeon: Unify PM entry paths

There's a moderate amount of effort involved in setting the card up for
clock transitions, so unify the codepaths to make it easier to implement.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: rework power management
Alex Deucher [Sat, 24 Apr 2010 18:50:23 +0000 (14:50 -0400)]
drm/radeon/kms/pm: rework power management

Add two new sysfs attributes:
- dynpm
- power_state

Echoing 0/1 to dynpm disables/enables dynamic power management.
The driver scales the sclk dynamically based on the number of
queued fences.  dynpm only scales sclk dynamically in single head
mode.

Echoing x.y to power_state selects a static power state (x) and clock
mode (y).  This allows you to statically select a power state and clock
mode.  Selecting a static clock mode will disable dynpm.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: add additional asic callbacks
Alex Deucher [Fri, 23 Apr 2010 21:57:27 +0000 (17:57 -0400)]
drm/radeon/kms/pm: add additional asic callbacks

- pm_misc() - handles voltage, pcie lanes, and other non
clock related power mode settings.  Currently disabled.
Needs further debugging

- pm_prepare() - disables crtc mem requests right now.
All memory clients need to be disabled when changing
memory clocks.  This function can be expanded to include
disabling fb access as well.

- pm_finish() - enable active memory clients.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: restore default power state on exit
Alex Deucher [Mon, 22 Mar 2010 17:31:08 +0000 (13:31 -0400)]
drm/radeon/kms/pm: restore default power state on exit

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: minor pm cleanups
Alex Deucher [Thu, 22 Apr 2010 18:25:19 +0000 (14:25 -0400)]
drm/radeon/kms: minor pm cleanups

- remove non_clock_info struct
- track power state misc flags

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: clean power state printing
Alex Deucher [Mon, 5 Apr 2010 19:26:43 +0000 (15:26 -0400)]
drm/radeon/kms/pm: clean power state printing

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: don't enable pm if there is only on power state
Alex Deucher [Wed, 24 Mar 2010 15:32:29 +0000 (11:32 -0400)]
drm/radeon/kms/pm: don't enable pm if there is only on power state

Just adds overhead when the power state will never change.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom: load hwmon drivers
Alex Deucher [Thu, 22 Apr 2010 18:17:56 +0000 (14:17 -0400)]
drm/radeon/kms/atom: load hwmon drivers

Hook the atom table parsing up to module loading, so we can automatically
load the appropriate hwmon drivers.

Based on initial patch for r6xx from Matthew Garrett

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: update display watermarks with power state changes
Alex Deucher [Mon, 22 Mar 2010 17:34:22 +0000 (13:34 -0400)]
drm/radeon/kms/pm: update display watermarks with power state changes

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: add asic specific callbacks for getting power state (v2)
Alex Deucher [Thu, 22 Apr 2010 18:03:55 +0000 (14:03 -0400)]
drm/radeon/kms/pm: add asic specific callbacks for getting power state (v2)

This also simplifies the code and enables reclocking with multiple heads
active by tracking whether the power states are single or multi-head
capable.

Eventually, we will want to select a power state based on external
factors (AC/DC state, user selection, etc.).

(v2) Update for evergreen

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: add asic specific callbacks for setting power state (v2)
Alex Deucher [Thu, 22 Apr 2010 17:38:05 +0000 (13:38 -0400)]
drm/radeon/kms/pm: add asic specific callbacks for setting power state (v2)

(v2) Add evergreen vbl checks

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: move pm state update to crtc functions
Alex Deucher [Tue, 16 Mar 2010 21:42:46 +0000 (17:42 -0400)]
drm/radeon/kms/pm: move pm state update to crtc functions

crtcs are what we ultimately care about wrt to pm.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/pm: interate across crtcs for vblank
Alex Deucher [Mon, 15 Mar 2010 21:09:05 +0000 (17:09 -0400)]
drm/radeon/kms/pm: interate across crtcs for vblank

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom/pm: rework power mode parsing
Alex Deucher [Thu, 22 Apr 2010 17:25:06 +0000 (13:25 -0400)]
drm/radeon/kms/atom/pm: rework power mode parsing

On pre-r6xx, the power mode array is usually ordered:
low
...
high
default

On r6xx+:
default
low
...
high

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: wait for gpu idle before changing power mode
Alex Deucher [Wed, 17 Mar 2010 18:29:15 +0000 (14:29 -0400)]
drm/radeon/kms: wait for gpu idle before changing power mode

set proper wait condition as noted by Rafał Miłecki.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: add support for gui idle interrupts (v4)
Alex Deucher [Thu, 22 Apr 2010 16:52:11 +0000 (12:52 -0400)]
drm/radeon/kms: add support for gui idle interrupts (v4)

Useful for certain power management operations.  You
need to wait for the GUI engine (2D, 3D, CP, etc.) to be
idle before changing clocks or adjusting engine parameters.

(v2) Fix gui idle enable on pre-r6xx asics

(v3) The gui idle interrrupt status bit is permanently asserted
on pre-r6xx chips, but the interrrupt is still generated.
workaround it in the driver.

(v4) Add support for evergreen

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: add gui_idle callback
Alex Deucher [Thu, 22 Apr 2010 16:39:58 +0000 (12:39 -0400)]
drm/radeon/kms: add gui_idle callback

Check to see if the GUI engine and related blocks
(2D, 3D, CP, etc) are idle or not.  There are a number
of cases when we need to know if the drawing engine
is busy.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/fbdev: fix cloning on fbcon
Dave Airlie [Fri, 7 May 2010 05:02:30 +0000 (05:02 +0000)]
drm/fbdev: fix cloning on fbcon

Simple cloning rules compared to server:
(a) single crtc
(b) > 1 connector active
(c) check command line mode
(d) try and find 1024x768 DMT mode if no command line.
(e) fail to clone

Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/fbdev: rework output polling to be back in the core. (v4)
Dave Airlie [Fri, 7 May 2010 06:42:51 +0000 (06:42 +0000)]
drm/fbdev: rework output polling to be back in the core. (v4)

After thinking it over a lot it made more sense for the core to deal with
the output polling especially so it can notify X.

v2: drop plans for fake connector - per Michel's comments - fix X patch sent to xorg-devel, add intel polled/hpd setting, add initial nouveau polled/hpd settings.

v3: add config lock take inside polling, add intel/nouveau poll init/fini calls

v4: config lock was a bit agressive, only needed around connector list reading.
otherwise it could re-enter.

glisse: discard drm_helper_hpd_irq_event

v3: Reviewed-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: off by one in drm_edid.c
Dan Carpenter [Fri, 7 May 2010 08:38:20 +0000 (08:38 +0000)]
drm: off by one in drm_edid.c

m == num_est3_modes is one past the end of the est3_modes[].

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agovga16fb, drm: vga16fb->drm handoff
Marcin Slusarz [Sun, 16 May 2010 15:33:09 +0000 (17:33 +0200)]
vga16fb, drm: vga16fb->drm handoff

let vga16fb claim 0xA0000+0x10000 region as its aperture;
drm drivers don't use it, so we have to detect it and kick
vga16fb manually - but only if drm is driving the primary card

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agofbmem, drm/nouveau: kick firmware framebuffers as soon as possible
Marcin Slusarz [Sun, 16 May 2010 15:29:56 +0000 (17:29 +0200)]
fbmem, drm/nouveau: kick firmware framebuffers as soon as possible

Currently vesafb/efifb/... is kicked when hardware driver is registering
framebuffer. To do it hardware must be fully functional, so there's a short
window between start of initialisation and framebuffer registration when
two drivers touch the hardware. Unfortunately sometimes it breaks nouveau
initialisation.

Fix it by kicking firmware driver(s) before we start touching the hardware.

Reported-by: Didier Spaier <didier.spaier@epsm.fr>
Tested-by: Didier Spaier <didier.spaier@epsm.fr>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agofbdev: allow passing more than one aperture for handoff
Marcin Slusarz [Sun, 16 May 2010 15:27:03 +0000 (17:27 +0200)]
fbdev: allow passing more than one aperture for handoff

It removes a hack from nouveau code which had to detect which
region to pass to kick vesafb/efifb.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: Prefix info printk about registering panic notifier with 'drm'
Kirill Smelkov [Fri, 14 May 2010 15:45:16 +0000 (19:45 +0400)]
drm: Prefix info printk about registering panic notifier with 'drm'

Recently I've studied my system dmesg and seen this:

  <lots of stuff before>
1 [    0.478416] ACPI: Battery Slot [C1B4] (battery present)
2 [    0.478648] ACPI: Battery Slot [C1B3] (battery absent)
3 [    0.906678] [drm] initialized overlay support
4 [    1.762304] Console: switching to colour frame buffer device 128x48
5 [    1.765211] fb0: inteldrmfb frame buffer device
6 [    1.765242] registered panic notifier
7 [    1.765272] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
8 [    1.765372] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
  <lots of stuff after>

and it was not evident who registered that panic notifier on line 6.

I'd bought it as some low-level stuff needed by kernel itself, but the
time was inappropriate -- too late for such things.

So I had to study sources to see it was drm who was registering
switch-to-fb on panic.

Let's avoid possible confusion and mark this message as going from drm
subsystem.

(I'm a bit unsure whether to use '[drm]:' or 'drm:' -- the rest of the
 kernel just uses 'topic:', and even in drm_fb_helper.c we use 'fb%d:'
 without [] brackets. Either way is ok with me.)

Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: add query for crtc hw id from crtc id to get info V2
Jerome Glisse [Wed, 12 May 2010 16:01:13 +0000 (18:01 +0200)]
drm/radeon/kms: add query for crtc hw id from crtc id to get info V2

Userspace need to know the hw crtc id (0, 1, 2, ...) from the drm
crtc id. Bump the minor version so userspace can enable conditionaly
features depend on this.

V2 use num_crtc and avoid DRM_ERROR

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/edid: Fix 1024x768@85Hz
Adam Jackson [Thu, 13 May 2010 18:55:28 +0000 (14:55 -0400)]
drm/edid: Fix 1024x768@85Hz

Having hsync both start and end on pixel 1072 ain't gonna work very
well.  Matches the X server's list.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Tested-By: Michael Tokarev <mjt@tls.msk.ru>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrivers/gpu/drm: Use kzalloc
Julia Lawall [Thu, 13 May 2010 19:58:56 +0000 (21:58 +0200)]
drivers/gpu/drm: Use kzalloc

Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Reviewed-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm_edid: There should be 6 Standard Timings
Dan Carpenter [Fri, 14 May 2010 11:06:19 +0000 (13:06 +0200)]
drm_edid: There should be 6 Standard Timings

Smatch complained that we initialize 6 elements in add_detailed_modes()
but the timings[] array is declared with 5 elements.  Adam Jackson
verified that 6 is the correct number of timings.

On Mon, May 10, 2010 at 12:08:24PM -0400, Adam Jackson wrote:
> > >                 struct std_timing timings[5];
> > >                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> This decl is wrong, should be 6.  From the 1.4 spec:
>
> "Six additional Standard Timings may be listed as a display descriptor
> (tag #FAh)."
>
> The 1.3 spec is a little less explicit about it, but does show 6
> standard timing codes in the 0xFA detailed subblock, terminated by 0x0A
> in the 18th byte.  I don't have the docs for 1.2 or earlier, but we're
> paranoid enough about not adding broken timings that we should be fine.

This patch is basically a clean up, because timings[] is declared inside
a union and increasing the number of elements here doesn't change the
overall size of the union.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrivers/gpu/drm: Use kmemdup
Julia Lawall [Sat, 15 May 2010 21:17:40 +0000 (23:17 +0200)]
drivers/gpu/drm: Use kmemdup

Use kmemdup when some other buffer is immediately copied into the
allocated region.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agovga: fix kconfig text typos
Randy Dunlap [Mon, 17 May 2010 17:54:04 +0000 (10:54 -0700)]
vga: fix kconfig text typos

Fix typos in vga/Kconfig file
and use GPU (upper case) consistently.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/edid: remove an unneeded variable
Dan Carpenter [Sun, 16 May 2010 06:27:52 +0000 (08:27 +0200)]
drm/edid: remove an unneeded variable

We don't use timing_level any more after: 9cf00977da0 "drm/edid: Unify
detailed block parsing between base and extension blocks".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/combios: match lvds panel info parsing to ddx
Alex Deucher [Tue, 18 May 2010 04:30:05 +0000 (00:30 -0400)]
drm/radeon/kms/combios: match lvds panel info parsing to ddx

Should work better on some panels.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom: fix typo in LVDS panel info parsing
Alex Deucher [Tue, 18 May 2010 04:23:15 +0000 (00:23 -0400)]
drm/radeon/kms/atom: fix typo in LVDS panel info parsing

Fixes LVDS issues on some laptops; notably laptops with
2048x1536 panels.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix copy pasto in disable encoders patch
Alex Deucher [Sat, 8 May 2010 03:17:20 +0000 (23:17 -0400)]
drm/radeon/kms: fix copy pasto in disable encoders patch

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom: disable the encoders in encoder_disable
Alex Deucher [Fri, 7 May 2010 21:05:22 +0000 (17:05 -0400)]
drm/radeon/kms/atom: disable the encoders in encoder_disable

Previously we just set them to dpms off.  This should save
additional power.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: fix, avoid iomapping system memory
Jerome Glisse [Wed, 5 May 2010 09:02:44 +0000 (11:02 +0200)]
drm/ttm: fix, avoid iomapping system memory

If the memory is not iomem we should not try to
ioremap it. Should fix :

https://bugs.freedesktop.org/show_bug.cgi?id=27822

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: R3XX-R4XX fix GPU reset code
Jerome Glisse [Mon, 26 Apr 2010 20:23:42 +0000 (22:23 +0200)]
drm/radeon/kms: R3XX-R4XX fix GPU reset code

Previous reset code leaded to computer hard lockup (need to unplug
the power too reboot the computer) on various configuration. This
patch change the reset code to avoid hard lockup. The GPU reset
is failing most of the time but at least user can log in remotely
or properly shutdown the computer.

Two issues were leading to hard lockup :
- Writting to the scratch register lead to hard lockup most likely
because the write back mecanism is in fuzy state after GPU lockup.
- Resetting the GPU memory controller and not reinitializing it
after leaded to hard lockup. We did only reinitialize in case of
successfull reset thus unsuccessfull reset quickly leaded to hard
lockup.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: HDMI irq support
Christian Koenig [Sat, 10 Apr 2010 01:13:16 +0000 (03:13 +0200)]
drm/radeon/kms: HDMI irq support

Implements irq support for HDMI audio output. Now the polling timer
is only enabled if irq support isn't available.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: rework audio polling timer
Christian König [Mon, 5 Apr 2010 20:14:55 +0000 (22:14 +0200)]
drm/radeon/kms: rework audio polling timer

Rework HDMI audio polling timer, only enable it when
at least one HDMI encoder needs it. Preparation for
replacing it with irq support.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoagp: use scratch page on memory remove and at GATT creation V4
Jerome Glisse [Tue, 20 Apr 2010 15:43:34 +0000 (17:43 +0200)]
agp: use scratch page on memory remove and at GATT creation V4

Convert most AGP chipset to use scratch page as default entries.
This help avoiding GPU querying 0 address and trigger computer
fault. With KMS and memory manager we bind/unbind AGP memory
constantly and it seems that some GPU are still doing AGP
traffic even after GPU report being idle with the memory segment.

Tested (radeon GPU KMS + Xorg + compiz + glxgears + quake3) on :
- SIS 1039:0001 & 1039:0003
- Intel 865 8086:2571

Compile tested for other bridges

V2 enable scratch page on uninorth
V3 fix unbound check in uninorth insert memory (Michel Dänzer)
V4 rebase on top of drm-next branch with the lastest intel AGP
   changeset (stable should use version V3 of the patch)

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: add initial DRM developer documentation
Jesse Barnes [Mon, 26 Oct 2009 20:06:31 +0000 (13:06 -0700)]
drm: add initial DRM developer documentation

Add a DRM DocBook providing basic information about DRM interfaces, including
TTM, GEM, KMS and vblank infrastructure.  Intended to provide information to
new and existing developers about how to perform driver initialization,
implement mode setting and other DRM features.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoagp/intel: put back check that we have a driver for the bridge.
Dave Airlie [Tue, 20 Apr 2010 06:34:20 +0000 (16:34 +1000)]
agp/intel: put back check that we have a driver for the bridge.

On my 945 laptop + radeon GPU, I was getting an oops on boot without this
check which seems to have gotten dropped in the rework.

Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoRevert "drm/i915: Configure the TV sense state correctly on GM45 to make TV detection...
Dave Airlie [Tue, 20 Apr 2010 04:25:51 +0000 (14:25 +1000)]
Revert "drm/i915: Configure the TV sense state correctly on GM45 to make TV detection reliable"

Eric mentioned on irc this patch was bad, so revert it.

This reverts commit fb8b5a39b6310379d7b54c0c7113703a8eaf4a57.

Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge branch 'drm-ttm-unmappable' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 04:15:09 +0000 (14:15 +1000)]
Merge branch 'drm-ttm-unmappable' into drm-core-next

* drm-ttm-unmappable:
  drm/radeon/kms: enable use of unmappable VRAM V2
  drm/ttm: remove io_ field from TTM V6
  drm/vmwgfx: add support for new TTM fault callback V5
  drm/nouveau/kms: add support for new TTM fault callback V5
  drm/radeon/kms: add support for new fault callback V7
  drm/ttm: ttm_fault callback to allow driver to handle bo placement V6
  drm/ttm: split no_wait argument in 2 GPU or reserve wait

Conflicts:
drivers/gpu/drm/nouveau/nouveau_bo.c

14 years agodrm/radeon/kms: enable use of unmappable VRAM V2
Jerome Glisse [Wed, 7 Apr 2010 10:21:31 +0000 (10:21 +0000)]
drm/radeon/kms: enable use of unmappable VRAM V2

This patch enable the use of unmappable VRAM thanks to
previous TTM infrastructure change.

V2 update after io_mem_reserve/io_mem_free callback balancing

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: remove io_ field from TTM V6
Jerome Glisse [Wed, 7 Apr 2010 10:21:27 +0000 (10:21 +0000)]
drm/ttm: remove io_ field from TTM V6

All TTM driver have been converted to new io_mem_reserve/free
interface which allow driver to choose and return proper io
base, offset to core TTM for ioremapping if necessary. This
patch remove what is now deadcode.

V2 adapt to match with change in first patch of the patchset
V3 update after io_mem_reserve/io_mem_free callback balancing
V4 adjust to minor cleanup
V5 remove the needs ioremap flag
V6 keep the ioremapping facility in TTM

[airlied- squashed driver removals in here also]

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/vmwgfx: add support for new TTM fault callback V5
Jerome Glisse [Fri, 9 Apr 2010 12:39:26 +0000 (14:39 +0200)]
drm/vmwgfx: add support for new TTM fault callback V5

This add the support for the new fault callback, does change anything
from driver point of view.

Improvement: store the aperture base in a variable so that we don't
call a function to get it on each fault.

Patch hasn't been tested.

V2 don't derefence bo->mem.mm_node as it's not NULL only for
   VRAM or GTT
V3 update after io_mem_reserve/io_mem_free callback balancing
V4 callback has to ioremap
V5 ioremap is done by TTM

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/nouveau/kms: add support for new TTM fault callback V5
Jerome Glisse [Fri, 9 Apr 2010 12:39:25 +0000 (14:39 +0200)]
drm/nouveau/kms: add support for new TTM fault callback V5

This add the support for the new fault callback, does change anything
from driver point of view, thought it should allow nouveau to add
support for unmappable VRAM.

Improvement: store the aperture base in a variable so that we don't
call a function to get it on each fault.

Patch hasn't been tested on any hw.

V2 don't derefence bo->mem.mm_node as it's not NULL only for
   VRAM or GTT
V3 update after io_mem_reserve/io_mem_free callback balancing
V4 callback has to ioremap
V5 ioremap is done by ttm

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: add support for new fault callback V7
Jerome Glisse [Fri, 9 Apr 2010 12:39:24 +0000 (14:39 +0200)]
drm/radeon/kms: add support for new fault callback V7

This add the support for the new fault callback and also the
infrastructure for supporting unmappable VRAM.

V2 validate BO with no_wait = true
V3 don't derefence bo->mem.mm_node as it's not NULL only for
   VRAM or GTT
V4 update to splitted no_wait ttm change
V5 update to new balanced io_mem_reserve/free change
V6 callback is responsible for iomapping memory
V7 move back iomapping to ttm

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/ttm: ttm_fault callback to allow driver to handle bo placement V6
Jerome Glisse [Fri, 9 Apr 2010 12:39:23 +0000 (14:39 +0200)]
drm/ttm: ttm_fault callback to allow driver to handle bo placement V6

On fault the driver is given the opportunity to perform any operation
it sees fit in order to place the buffer into a CPU visible area of
memory. This patch doesn't break TTM users, nouveau, vmwgfx and radeon
should keep working properly. Future patch will take advantage of this
infrastructure and remove the old path from TTM once driver are
converted.

V2 return VM_FAULT_NOPAGE if callback return -EBUSY or -ERESTARTSYS
V3 balance io_mem_reserve and io_mem_free call, fault_reserve_notify
   is responsible to perform any necessary task for mapping to succeed
V4 minor cleanup, atomic_t -> bool as member is protected by reserve
   mecanism from concurent access
V5 the callback is now responsible for iomapping the bo and providing
   a virtual address this simplify TTM and will allow to get rid of
   TTM_MEMTYPE_FLAG_NEEDS_IOREMAP
V6 use the bus addr data to decide to ioremap or this isn't needed
   but we don't necesarily need to ioremap in the callback but still
   allow driver to use static mapping

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/i915: drop pointer to drm_gem_object
Daniel Vetter [Fri, 9 Apr 2010 19:05:09 +0000 (19:05 +0000)]
drm/i915: drop pointer to drm_gem_object

Luckily the change is quite a little bit less invasive than I've
feared.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/i915: don't use ->driver_private anymore
Daniel Vetter [Fri, 9 Apr 2010 19:05:08 +0000 (19:05 +0000)]
drm/i915: don't use ->driver_private anymore

Thanks to the to_intel_bo helper, this change is rather trivial.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/i915: embed the gem object into drm_i915_gem_object
Daniel Vetter [Fri, 9 Apr 2010 19:05:07 +0000 (19:05 +0000)]
drm/i915: embed the gem object into drm_i915_gem_object

Just embed it and adjust the pointers, No other changes (that's
for later patches).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/i915: introduce i915_gem_alloc_object
Daniel Vetter [Fri, 9 Apr 2010 19:05:06 +0000 (19:05 +0000)]
drm/i915: introduce i915_gem_alloc_object

Just preparation, no functional change.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: free core gem object from driver callbacks
Daniel Vetter [Fri, 9 Apr 2010 19:05:05 +0000 (19:05 +0000)]
drm: free core gem object from driver callbacks

When drivers embed the core gem object into their own structures,
they'll have to do this. Temporarily this results in an ugly

kfree(gem_obj);

in every gem driver.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm: extract drm_gem_object_init
Daniel Vetter [Fri, 9 Apr 2010 19:05:04 +0000 (19:05 +0000)]
drm: extract drm_gem_object_init

This function can be used by drivers who allocate the drm gem object
on their own. No functional change in here, just preparation.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agoMerge branch 'drm-radeon-evergreen-accel' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 03:16:50 +0000 (13:16 +1000)]
Merge branch 'drm-radeon-evergreen-accel' into drm-core-next

* drm-radeon-evergreen-accel:
  drm/radeon: fix cypress firmware typo.
  drm/radeon/kms/evergreen: add hpd support
  drm/radeon/kms/evergreen: implement irq support
  drm/radeon/kms/evergreen: setup and enable the CP
  drm/radeon/kms/evergreen: implement gfx init
  drm/radeon/kms/evergreen: add soft reset function
  drm/radeon/kms/evergreen: add gart support
  drm/radeon/kms: add support for evergreen power tables
  drm/radeon/kms: update atombios.h power tables for evergreen

14 years agoMerge branch 'drm-fbdev-cleanup' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 03:16:04 +0000 (13:16 +1000)]
Merge branch 'drm-fbdev-cleanup' into drm-core-next

* drm-fbdev-cleanup:
  drm/fb: remove drm_fb_helper_setcolreg
  drm/kms/fb: use slow work mechanism for normal hotplug also.
  drm/kms/fb: add polling support for when nothing is connected.
  drm/kms/fb: provide a 1024x768 fbcon if no outputs found.
  drm/kms/fb: separate fbdev connector list from core drm connectors
  drm/kms/fb: move to using fb helper crtc grouping instead of core crtc list
  drm/fb: fix fbdev object model + cleanup properly.

Conflicts:
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/nouveau/nouveau_drv.h

14 years agoMerge branch 'drm-radeon-lockup' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 03:15:05 +0000 (13:15 +1000)]
Merge branch 'drm-radeon-lockup' into drm-core-next

* drm-radeon-lockup:
  drm/radeon/kms: simplify & improve GPU reset V2
  drm/radeon/kms: rename gpu_reset to asic_reset
  drm/radeon/kms: fence cleanup + more reliable GPU lockup detection V4

Conflicts:
drivers/gpu/drm/radeon/r300.c

14 years agoMerge branch 'drm-edid-fixes' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 03:14:38 +0000 (13:14 +1000)]
Merge branch 'drm-edid-fixes' into drm-core-next

* drm-edid-fixes:
  drm/edid: When checking duplicate standard modes, walked the probed list
  drm/edid: Fix sync polarity for secondary GTF curve
  drm/modes: Fix interlaced mode names
  drm/edid: Add secondary GTF curve support
  drm/edid: Strengthen the algorithm for standard mode codes
  drm/edid: Fix the HDTV hack.
  drm/edid: Extend range-based mode addition for EDID 1.4
  drm/edid: Add test for monitor reduced blanking support.
  drm/edid: Fix preferred mode parse for EDID 1.4
  drm/edid: Remove some silly comments
  drm/edid: Remove arbitrary EDID extension limit
  drm/edid: Add modes for Established Timings III section
  drm/edid: Reshuffle mode list construction to closer match the spec
  drm/edid: Remove a redundant check
  drm/edid: Remove some misleading comments
  drm/edid: Fix secondary block fetch.

14 years agoMerge branch 'drm-ttm-pool' into drm-core-next
Dave Airlie [Tue, 20 Apr 2010 03:12:28 +0000 (13:12 +1000)]
Merge branch 'drm-ttm-pool' into drm-core-next

* drm-ttm-pool:
  drm/ttm: using kmalloc/kfree requires including slab.h
  drm/ttm: include linux/seq_file.h for seq_printf
  drm/ttm: Add sysfs interface to control pool allocator.
  drm/ttm: Use set_pages_array_wc instead of set_memory_wc.
  arch/x86: Add array variants for setting memory to wc caching.
  drm/nouveau: Add ttm page pool debugfs file.
  drm/radeon/kms: Add ttm page pool debugfs file.
  drm/ttm: Add debugfs output entry to pool allocator.
  drm/ttm: add pool wc/uc page allocator V3

14 years agoMerge remote branch 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next into...
Dave Airlie [Tue, 20 Apr 2010 03:11:45 +0000 (13:11 +1000)]
Merge remote branch 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next into drm-core-next

* 'anholt/drm-intel-next' of /home/airlied/kernel/drm-next: (48 commits)
  agp/intel-gtt: kill previous_size assignments
  agp/intel-gtt: kill intel_i830_tlbflush
  agp/intel: split out gmch/gtt probe, part 1
  agp/intel: kill mutli_gmch_chip
  agp/intel: uncoditionally reconfigure driver on resume
  agp/intel: split out the GTT support
  agp/intel: introduce intel-agp.h header file
  drm/i915: Don't touch PORT_HOTPLUG_EN in intel_dp_detect()
  drm/i915/pch: Use minimal number of FDI lanes (v2)
  drm/i915: Add the support of memory self-refresh on Ironlake
  drm/i915: Move Pineview CxSR and watermark code into update_wm hook.
  drm/i915: Only save/restore FBC on the platform that supports FBC
  drm/i915: Fix the incorrect argument for SDVO SET_TV_format command
  drm/i915: Add support of SDVO on Ibexpeak PCH
  drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on).
  drm/i915: do not read uninitialized ->dev_private
  Revert "drm/i915: Use a dmi quirk to skip a broken SDVO TV output."
  drm/i915: implement multifunction SDVO device support
  drm/i915: remove unused intel_pipe_get_connector()
  drm/i915: remove connector object in old output structure
  ...

14 years agoLinux 2.6.34-rc5
Linus Torvalds [Mon, 19 Apr 2010 23:29:56 +0000 (16:29 -0700)]
Linux 2.6.34-rc5

14 years agormap: add exclusively owned pages to the newest anon_vma
Rik van Riel [Wed, 14 Apr 2010 21:59:28 +0000 (17:59 -0400)]
rmap: add exclusively owned pages to the newest anon_vma

The recent anon_vma fixes cause many anonymous pages to end up
in the parent process anon_vma, even when the page is exclusively
owned by the current process.

Adding exclusively owned anonymous pages to the top anon_vma
reduces rmap scanning overhead, especially in workloads with
forking servers.

This patch adds a parameter to __page_set_anon_rmap that can
be used to indicate whether or not the added page is exclusively
owned by the current process.

Pages added through page_add_new_anon_rmap are exclusively
owned by the current process, and can be added to the top
anon_vma.

Pages added through page_add_anon_rmap can be either shared
or exclusively owned, so we do the conservative thing and
add it to the oldest anon_vma.

A next step would be to add the exclusive parameter to
page_add_anon_rmap, to be used from functions where we do
know for sure whether a page is exclusively owned.

Signed-off-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Lightly-tested-by: Borislav Petkov <bp@alien8.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
[ Edited to look nicer  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs...
Linus Torvalds [Mon, 19 Apr 2010 21:20:32 +0000 (14:20 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  eCryptfs: Turn lower lookup error messages into debug messages
  eCryptfs: Copy lower directory inode times and size on link
  ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
  ecryptfs: fix error code for missing xattrs in lower fs
  eCryptfs: Decrypt symlink target for stat size
  eCryptfs: Strip metadata in xattr flag in encrypted view
  eCryptfs: Clear buffer before reading in metadata xattr
  eCryptfs: Rename ecryptfs_crypt_stat.num_header_bytes_at_front
  eCryptfs: Fix metadata in xattr feature regression

14 years agoeCryptfs: Turn lower lookup error messages into debug messages
Tyler Hicks [Thu, 25 Mar 2010 16:16:56 +0000 (11:16 -0500)]
eCryptfs: Turn lower lookup error messages into debug messages

Vaugue warnings about ENAMETOOLONG errors when looking up an encrypted
file name have caused many users to become concerned about their data.
Since this is a rather harmless condition, I'm moving this warning to
only be printed when the ecryptfs_verbosity module param is 1.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoeCryptfs: Copy lower directory inode times and size on link
Tyler Hicks [Tue, 23 Mar 2010 23:09:02 +0000 (18:09 -0500)]
eCryptfs: Copy lower directory inode times and size on link

The timestamps and size of a lower inode involved in a link() call was
being copied to the upper parent inode.  Instead, we should be
copying lower parent inode's timestamps and size to the upper parent
inode.  I discovered this bug using the POSIX test suite at Tuxera.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
Jeff Mahoney [Fri, 19 Mar 2010 19:35:46 +0000 (15:35 -0400)]
ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode

Since tmpfs has no persistent storage, it pins all its dentries in memory
so they have d_count=1 when other file systems would have d_count=0.
->lookup is only used to create new dentries. If the caller doesn't
instantiate it, it's freed immediately at dput(). ->readdir reads
directly from the dcache and depends on the dentries being hashed.

When an ecryptfs mount is mounted, it associates the lower file and dentry
with the ecryptfs files as they're accessed. When it's umounted and
destroys all the in-memory ecryptfs inodes, it fput's the lower_files and
d_drop's the lower_dentries. Commit 4981e081 added this and a d_delete in
2008 and several months later commit caeeeecf removed the d_delete. I
believe the d_drop() needs to be removed as well.

The d_drop effectively hides any file that has been accessed via ecryptfs
from the underlying tmpfs since it depends on it being hashed for it to
be accessible. I've removed the d_drop on my development node and see no
ill effects with basic testing on both tmpfs and persistent storage.

As a side effect, after ecryptfs d_drops the dentries on tmpfs, tmpfs
BUGs on umount. This is due to the dentries being unhashed.
tmpfs->kill_sb is kill_litter_super which calls d_genocide to drop
the reference pinning the dentry. It skips unhashed and negative dentries,
but shrink_dcache_for_umount_subtree doesn't. Since those dentries
still have an elevated d_count, we get a BUG().

This patch removes the d_drop call and fixes both issues.

This issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=567887

Reported-by: Árpád Bíró <biroa@demasz.hu>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoecryptfs: fix error code for missing xattrs in lower fs
Christian Pulvermacher [Tue, 23 Mar 2010 16:51:38 +0000 (11:51 -0500)]
ecryptfs: fix error code for missing xattrs in lower fs

If the lower file system driver has extended attributes disabled,
ecryptfs' own access functions return -ENOSYS instead of -EOPNOTSUPP.
This breaks execution of programs in the ecryptfs mount, since the
kernel expects the latter error when checking for security
capabilities in xattrs.

Signed-off-by: Christian Pulvermacher <pulvermacher@gmx.de>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoeCryptfs: Decrypt symlink target for stat size
Tyler Hicks [Mon, 22 Mar 2010 05:41:35 +0000 (00:41 -0500)]
eCryptfs: Decrypt symlink target for stat size

Create a getattr handler for eCryptfs symlinks that is capable of
reading the lower target and decrypting its path.  Prior to this patch,
a stat's st_size field would represent the strlen of the encrypted path,
while readlink() would return the strlen of the decrypted path.  This
could lead to confusion in some userspace applications, since the two
values should be equal.

https://bugs.launchpad.net/bugs/524919

Reported-by: Loïc Minier <loic.minier@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoFix ISDN/Gigaset build failure
Linus Torvalds [Mon, 19 Apr 2010 18:53:17 +0000 (11:53 -0700)]
Fix ISDN/Gigaset build failure

Commit b91ecb00 ("gigaset: include cleanup cleanup") removed an implicit
sched.h inclusion that came in via slab.h, and caused various compile
problems as a result.

This should fix it.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 19 Apr 2010 15:35:47 +0000 (08:35 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rcu: Make RCU lockdep check the lockdep_recursion variable
  rcu: Update docs for rcu_access_pointer and rcu_dereference_protected
  rcu: Better explain the condition parameter of rcu_dereference_check()
  rcu: Add rcu_access_pointer and rcu_dereference_protected

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 19 Apr 2010 14:27:45 +0000 (07:27 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  gigaset: include cleanup cleanup
  packet : remove init_net restriction
  WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
  ip: Fix ip_dev_loopback_xmit()
  net: dev_pick_tx() fix
  fib: suppress lockdep-RCU false positive in FIB trie.
  tun: orphan an skb on tx
  forcedeth: fix tx limit2 flag check
  iwlwifi: work around bogus active chains detection

14 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Mon, 19 Apr 2010 14:27:06 +0000 (07:27 -0700)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: add FireMV 2400 PCI ID.
  drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
  drivers/gpu/radeon: Add MSPOS regs to safe list.
  drm/radeon/kms: disable the tv encoder when tv/cv is not in use
  drm/radeon/kms: adjust pll settings for tv
  drm/radeon/kms: fix tv dac conflict resolver
  drm/radeon/kms/evergreen: don't enable hdmi audio stuff
  drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
  drm/radeon/kms: fix rs600 tlb flush
  drm/radeon/kms: print GPU family and device id when loading
  drm/radeon/kms: fix calculation of mipmapped 3D texture sizes
  drm/radeon/kms: only change mode when coherent value changes.
  drm/radeon/kms: more atom parser fixes (v2)

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 19 Apr 2010 14:26:21 +0000 (07:26 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 5974/1: arm/mach-at91 Makefile: remove two blanks.
  ARM: 6052/1: kdump: make kexec work in interrupt context
  ARM: 6051/1: VFP: preserve the HW context when calling signal handlers
  ARM: 6050/1: VFP: fix the SMP versions of vfp_{sync,flush}_hwstate
  ARM: 6007/1: fix highmem with VIPT cache and DMA
  ARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off

14 years agodrm/radeon/kms: add FireMV 2400 PCI ID.
Dave Airlie [Mon, 19 Apr 2010 07:54:31 +0000 (17:54 +1000)]
drm/radeon/kms: add FireMV 2400 PCI ID.

This is an M24/X600 chip.

From RH# 581927

cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agorcu: Make RCU lockdep check the lockdep_recursion variable
Paul E. McKenney [Thu, 15 Apr 2010 19:50:39 +0000 (12:50 -0700)]
rcu: Make RCU lockdep check the lockdep_recursion variable

The lockdep facility temporarily disables lockdep checking by
incrementing the current->lockdep_recursion variable.  Such
disabling happens in NMIs and in other situations where lockdep
might expect to recurse on itself.

This patch therefore checks current->lockdep_recursion, disabling RCU
lockdep splats when this variable is non-zero.  In addition, this patch
removes the "likely()", as suggested by Lai Jiangshan.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: David Miller <davem@davemloft.net>
Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <20100415195039.GA22623@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agodrm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
Marek Olšák [Sun, 21 Feb 2010 20:24:15 +0000 (21:24 +0100)]
drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrivers/gpu/radeon: Add MSPOS regs to safe list.
Corbin Simpson [Sun, 11 Apr 2010 19:34:00 +0000 (12:34 -0700)]
drivers/gpu/radeon: Add MSPOS regs to safe list.

Permits MSAA and D3D-style rasterization.

[airlied: add rs600]

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: disable the tv encoder when tv/cv is not in use
Alex Deucher [Tue, 13 Apr 2010 15:21:59 +0000 (11:21 -0400)]
drm/radeon/kms: disable the tv encoder when tv/cv is not in use

Switching between TV and VGA caused VGA to break on some systems
since the TV encoder was left enabled when VGA was used.

fixes fdo bug 25520.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: adjust pll settings for tv
Alex Deucher [Fri, 9 Apr 2010 19:31:56 +0000 (15:31 -0400)]
drm/radeon/kms: adjust pll settings for tv

May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix tv dac conflict resolver
Alex Deucher [Thu, 15 Apr 2010 17:31:12 +0000 (13:31 -0400)]
drm/radeon/kms: fix tv dac conflict resolver

On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>