I keep making that one, so checked if I was the only one. Apparently
not.

Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

If the low and high sclks within a power state are the same,
there no need to enable sclk scaling.  Enabling sclk scaling
can cause display stability issues on some boards.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>

If the low and high sclks are the same, there is no need to
enable sclk scaling.  This causes display stability issues on
certain boards.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60857Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: NChristian König <christian.koenig@amd.com>

Since the clock scaling is based on fb divider adjustments,
make sure the other pll parameters are the same.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>

Rather than open coding it.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>

This very much looks like copypasta from drm/i915's fault handler.
It was used there to duct-tape over issues around gpu reset handling.

Since that can't ever happen for udl and there's seemingly no other
reason for this just drop it.
Reported-by: NPeter Zijlstra <peterz@infradead.org>
Acked-by: NPeter Zijlstra <peterz@infradead.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Radeon drm fixes for 3.12.  All over the place (display, dpm, uvd, etc.).
Also adds a couple more berlin pci ids.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux: (25 commits)
  drm/radeon/dpm: add bapm callback for kb/kv
  drm/radeon/dpm: add bapm callback for trinity
  drm/radeon/dpm: add infrastructure to properly handle bapm
  drm/radeon/dpm: handle bapm on kb/kv
  drm/radeon/dpm: handle bapm on trinity
  drm/radeon: expose DPM thermal thresholds through sysfs
  drm/radeon: simplify driver data retrieval
  drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2)
  drm/radeon/dpm: fix fallback for empty UVD clocks
  drm/radeon: add command submission tracepoint
  drm/radeon: remove stale radeon_fence_retire tracepoint
  drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback
  drm/radeon: fix typo in PG flags
  drm/radeon: add some additional berlin pci ids
  drm/radeon/cik: update gpu_init for an additional berlin gpu
  drm/radeon: add spinlocks for indirect register accesss
  drm/radeon: protect concurrent smc register access with a spinlock
  drm/radeon: dpm updates for KV
  drm/radeon: signedness bug in kv_dpm.c
  drm/radeon: clean up r600_free_extended_power_table()
  ...

When porting from UMS I mistyped this from the wrong place, AST noticed
and pointed it out, so we should fix it to be like the X.org driver.
Reported-by: NY.C. Chen <yc_chen@aspeedtech.com>
Cc: stable@vger.kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

This adds the enable_bapm callback for kb/kv.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds the enable_bapm callback for trinity.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

bapm is a pm feature for sharing the power budget between
the GPU and the CPU on APUs.  It needs to be enabled or
disabled in certain circumstances.  For now, disable it
when on battery and enable it when on AC power.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs.  This
patch adds support for enabling or disabling it.
For now disable it by default.  Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs.  This
patch adds support for enabling or disabling it.
For now disable it by default.  Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.

This patch fixes hangs on boot on certain trinity
laptops when the system is on battery power.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

The hwmon sysfs interface allows exposing temperature limits. The "max"
and "min" thresholds will be exposed as a critical high limit and its
hysteresis value, respectively. This gives the user a better idea of how
well cooling is doing and whether it is sufficient.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

You can get the driver data from struct device directly, there's no
need to get the PCI device first.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The OUTPUT_ENABLE action jumps past the point in the coder where
the data_offset is set on certain rs780 cards.  This worked
previously because the OUTPUT_ENABLE action is always called
immediately after the ENABLE action so the data_offset remained
set.  In 6f8bbaf568c7f2c497558bfd04654c0b9841ad57
(drm/radeon/atom: initialize more atom interpretor elements to 0),
we explictly reset data_offset to 0 between atom calls which then
caused this to fail.  The fix is to just skip calling the
OUTPUT_ENABLE action on the problematic chipsets.  The ENABLE
action does the same thing and more.  Ultimately, we could
probably drop the OUTPUT_ENABLE action all together on DCE3
asics.

fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60791

v2: only rs880 seems to be affected
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Some older 6xx-7xx boards didn't always fill in the
UVD clocks properly in the UVD power states.  This
leads to the driver trying to set a 0 clock which
results in slow or broken UVD playback.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=69120Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Neither complete nor perfect, but solves my problem at hand
and might be useful in the future.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Not used for quite a while now.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Certain r6xx boards use the same power state for both UVD
and other things.  Since we don't support UVD on r6xx boards
at the moment, there was no callback installed for setting
the UVD clocks, however, on systems that use the same power
state, this leads to a NULL pointer dereference.  Fill
in a stubbed out implementation for now to avoid the crash.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66963Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: "3.11" <stable@vger.kernel.org>

s/CG/PG/ in the GFX powergating flag name.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Sets the right paramters for the new pci id.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

This adds spinlocks to protect access to other
indirect register apertures.  These indirect spaces are
used pretty infrequently and we haven't had an reported
problems, but better safe than sorry.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

smc registers are access indirectly via the main mmio aperture, so
there may be problems with concurrent access.  This adds a spinlock
to protect access to this register space.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This updates dpm support for KV asics. Notably there
are some changes in acp handling and forcing performance
levels.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The problem here is that "unsigned i" is always greater than or equal to
zero.  These loops mostly have a second check for "(i == 0)" so only the
last two are actually buggy.  The rest is just cleanup.

Bug 1:  kv_force_dpm_highest() doesn't have an "(i == 0)" check so it's
a potential forever loop.

Bug 2: In kv_get_sleep_divider_id_from_clock() there is a typo and the
test is reversed "<=" vs ">" so we never enter the loop.  That means
normally we return KV_MAX_DEEPSLEEP_DIVIDER_ID (5).  The return value
from here is saved in ->DeepSleepDivId and I wasn't able to determine
how that is used.  This is a static checker fix and I have not tested
it.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

kfree() can accept NULL pointers so I have removed the checks.  Also
I've used a pointer to shorten the lines.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This provides a connector property to enable/disable hdmi
audio on the fly.  The default is disabled, but you can select
auto (let the driver detect an audio capable monitor and enable it)
or enabled (force audio enabled).  This also enables audio by
default so you no longer need a module parameter to enable audio.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Make sure the audio pin is valid before accessing its members.

Noticed by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Allows you to limit the selected power levels via sysfs.

Force the feedback divider to select a power level.

v2: fix checking in rs780_force_fbdiv,
    drop a duplicate divider structure in rs780_dpm_force_performance_level,
    Force the voltage level too.
Signed-off-by: NAnthoine Bourgeois <anthoine.bourgeois@gmail.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The internal cp interrupts need to be enabled and
disabled at specific times in order clockgating to
work properly.  This patch changes the handling
of the CP_INT_CNTL register to respect the current
state of the internal CP interrupts when making
changes to the other interrupts in CP_INT_CNTL.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The internal cp interrupts need to be enabled and
disabled at specific times in order clockgating to
work properly.  This patch changes the handling
of the CP_INT_CNTL register to respect the current
state of the internal CP interrupts when making
changes to the other interrupts in CP_INT_CNTL.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

if we have no crtcs we need to not call the display resume code.
Reported-by: NTobias Klausmann <tobias.johannes.klausmann@mni.thm.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Merge tag 'drm-intel-fixes-2013-09-06' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes

- Early stolen mem reservation from Jesse in x86 boot code. Acked by Ingo
  and hpa.  This was ready much earlier but somehow I've thought it'd go
  in through x86 trees, hence why this is late. Avoids the pci resource
  code to plant mmiobars in the middle of stolen mem and other ugliness.
- vgaarb improvements from Alex Williamson plus the fix from Ville for the
  vgacon->fbcon smooth transition "feature".
- Render pageflips on ivb/hsw to avoid stalls due to the ring switching
  when only flipping on the blitter (Chris).
- Deadlock fixes around our flush_workqueue which crept back in - lockdep
  isn't clever enough :(
- Shrinker recursion fix from Chris - this is the thing that blew the vma
  patches from Ben I've taken out of 3.12.
- Fixup for the relocation refactoring. Also an igt testcase to make sure
  we don't break this again.
- Pile of smaller fixups all over, shortlog has full details.

* tag 'drm-intel-fixes-2013-09-06' of git://people.freedesktop.org/~danvet/drm-intel: (29 commits)
  drm/i915: Delay disabling of VGA memory until vgacon->fbcon handoff is done
  drm/i915: try not to lose backlight CBLV precision
  drm/i915: Confine page flips to BCS on Valleyview
  drm/i915: Skip stolen region initialisation if none is reserved
  drm/i915: fix gpu hang vs. flip stall deadlocks
  drm/i915: Hold an object reference whilst we shrink it
  drm/i915: fix i9xx_crtc_clock_get for multiplied pixels
  drm/i915: handle sdvo input pixel multiplier correctly again
  drm/i915: fix hpd work vs. flush_work in the pageflip code deadlock
  drm/i915: fix up the relocate_entry refactoring
  drm/i915: Fix pipe config warnings when dealing with LVDS fixed mode
  drm/i915: Don't call sg_free_table() if sg_alloc_table() fails
  i915: Update VGA arbiter support for newer devices
  vgaarb: Fix VGA decodes changes
  vgaarb: Don't disable resources that are not owned
  drm/i915: Pin pages whilst mapping the dma-buf
  drm/i915: enable trickle feed on Haswell
  x86: add early quirk for reserving Intel graphics stolen memory v5
  drm/i915: split PCI IDs out into i915_drm.h v4
  i915_gem: Convert kmem_cache_alloc(...GFP_ZERO) to kmem_cache_zalloc
  ...

When transitioning away from vgacon the system tries to save the
current contents of the VGA memory, so that it can be cleanly handed
off to fbcon (or whatever comes afterwards).

The recent change

 commit 81b5c7bc
 Author: Alex Williamson <alex.williamson@redhat.com>
 Date:   Wed Aug 28 09:39:08 2013 -0600

    i915: Update VGA arbiter support for newer devices

caused i915 to disable VGA memory decode for the IGD when i915 is
initializing. Unfortunately that happens before the vgacon->fbcon
handoff so vgacon_save_screen() will read out all ones from the
VGA memory.

After the handoff fbcon will inherit the bogus state from vgacon,
and pre-fills the fb with matching contents. The end result is
a white rectangle in the top left corner of the screen, the size
of which matches the now inactive VGA console.

To remedy the situation delay the disabling of VGA memory until
the vgacon->fbcon handoff has happened.

Also rename i915_enable_vga to i915_enable_vga_mem to make
the relationship between these functions clearer.

Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

ACPI has _BCM and _BQC methods to set and query the backlight
brightness, respectively. The ACPI opregion has variables BCLP and CBLV
to hold the requested and current backlight brightness, respectively.

The BCLP variable has range 0..255 while the others have range
0..100. This means the _BCM method has to scale the brightness for BCLP,
and the gfx driver has to scale the requested value back for CBLV. If
the _BQC method uses the CBLV variable (apparently some implementations
do, some don't) for current backlight level reporting, there's room for
rounding errors.

Use DIV_ROUND_UP for scaling back to CBLV to get back to the same values
that were passed to _BCM, presuming the _BCM simply uses bclp = (in *
255) / 100 for scaling to BCLP.

Reference: https://gist.github.com/aaronlu/6314920Reported-by: NAaron Lu <aaron.lu@intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Reviewed-by: NAaron Lu <aaron.lu@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Once again we find that Valleyview is ever so subtlety different from
the rest of its gen7 brethen. In this case, Valleyview has no support
for pageflipping from the RCS ring.

Fixes a regression from

commit ffe74d75
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Aug 26 20:58:12 2013 +0100

    drm/i915: Use RCS flips on Ivybridge+
Reported-by: N"Lee, Chon Ming" <chon.ming.lee@intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68968Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Paulo reported that if he set the amount of reserved memory to 0, then
we emitted a warning about a conflict before disabling our use of stolen
memory. This was introduced with

commit eaba1b8f
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Jul 4 12:28:35 2013 +0100

    drm/i915: Verify that our stolen memory doesn't conflict

and is simply fixed by checking for a no reservation first.
Reported-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Since we've started to clean up pending flips when the gpu hangs in

commit 96a02917
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Mon Feb 18 19:08:49 2013 +0200

    drm/i915: Finish page flips and update primary planes after a GPU reset

the gpu reset work now also grabs modeset locks. But since work items
on our private work queue are not allowed to do that due to the
flush_workqueue from the pageflip code this results in a neat
deadlock:

INFO: task kms_flip:14676 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kms_flip        D ffff88019283a5c0     0 14676  13344 0x00000004
 ffff88018e62dbf8 0000000000000046 ffff88013bdb12e0 ffff88018e62dfd8
 ffff88018e62dfd8 00000000001d3b00 ffff88019283a5c0 ffff88018ec21000
 ffff88018f693f00 ffff88018eece000 ffff88018e62dd60 ffff88018eece898
Call Trace:
 [<ffffffff8138ee7b>] schedule+0x60/0x62
 [<ffffffffa046c0dd>] intel_crtc_wait_for_pending_flips+0xb2/0x114 [i915]
 [<ffffffff81050ff4>] ? finish_wait+0x60/0x60
 [<ffffffffa0478041>] intel_crtc_set_config+0x7f3/0x81e [i915]
 [<ffffffffa031780a>] drm_mode_set_config_internal+0x4f/0xc6 [drm]
 [<ffffffffa0319cf3>] drm_mode_setcrtc+0x44d/0x4f9 [drm]
 [<ffffffff810e44da>] ? might_fault+0x38/0x86
 [<ffffffffa030d51f>] drm_ioctl+0x2f9/0x447 [drm]
 [<ffffffff8107a722>] ? trace_hardirqs_off+0xd/0xf
 [<ffffffffa03198a6>] ? drm_mode_setplane+0x343/0x343 [drm]
 [<ffffffff8112222f>] ? mntput_no_expire+0x3e/0x13d
 [<ffffffff81117f33>] vfs_ioctl+0x18/0x34
 [<ffffffff81118776>] do_vfs_ioctl+0x396/0x454
 [<ffffffff81396b37>] ? sysret_check+0x1b/0x56
 [<ffffffff81118886>] SyS_ioctl+0x52/0x7d
 [<ffffffff81396b12>] system_call_fastpath+0x16/0x1b
2 locks held by kms_flip/14676:
 #0:  (&dev->mode_config.mutex){+.+.+.}, at: [<ffffffffa0316545>] drm_modeset_lock_all+0x22/0x59 [drm]
 #1:  (&crtc->mutex){+.+.+.}, at: [<ffffffffa031656b>] drm_modeset_lock_all+0x48/0x59 [drm]
INFO: task kworker/u8:4:175 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u8:4    D ffff88018de9a5c0     0   175      2 0x00000000
Workqueue: i915 i915_error_work_func [i915]
 ffff88018e37dc30 0000000000000046 ffff8801938ab8a0 ffff88018e37dfd8
 ffff88018e37dfd8 00000000001d3b00 ffff88018de9a5c0 ffff88018ec21018
 0000000000000246 ffff88018e37dca0 000000005a865a86 ffff88018de9a5c0
Call Trace:
 [<ffffffff8138ee7b>] schedule+0x60/0x62
 [<ffffffff8138f23d>] schedule_preempt_disabled+0x9/0xb
 [<ffffffff8138d0cd>] mutex_lock_nested+0x205/0x3b1
 [<ffffffffa0477094>] ? intel_display_handle_reset+0x7e/0xbd [i915]
 [<ffffffffa0477094>] ? intel_display_handle_reset+0x7e/0xbd [i915]
 [<ffffffffa0477094>] intel_display_handle_reset+0x7e/0xbd [i915]
 [<ffffffffa044e0a2>] i915_error_work_func+0x128/0x147 [i915]
 [<ffffffff8104a89a>] process_one_work+0x1d4/0x35a
 [<ffffffff8104a821>] ? process_one_work+0x15b/0x35a
 [<ffffffff8104b4a5>] worker_thread+0x144/0x1f0
 [<ffffffff8104b361>] ? rescuer_thread+0x275/0x275
 [<ffffffff8105076d>] kthread+0xac/0xb4
 [<ffffffff81059d30>] ? finish_task_switch+0x3b/0xc0
 [<ffffffff810506c1>] ? __kthread_parkme+0x60/0x60
 [<ffffffff81396a6c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810506c1>] ? __kthread_parkme+0x60/0x60
3 locks held by kworker/u8:4/175:
 #0:  (i915){.+.+.+}, at: [<ffffffff8104a821>] process_one_work+0x15b/0x35a
 #1:  ((&dev_priv->gpu_error.work)){+.+.+.}, at: [<ffffffff8104a821>] process_one_work+0x15b/0x35a
 #2:  (&crtc->mutex){+.+.+.}, at: [<ffffffffa0477094>] intel_display_handle_reset+0x7e/0xbd [i915]

This blew up while running kms_flip/flip-vs-panning-vs-hang-interruptible
on one of my older machines.

Unfortunately (despite the proper lockdep annotations for
flush_workqueue) lockdep still doesn't detect this correctly, so we
need to rely on chance to discover these bugs.

Apply the usual bugfix and schedule the reset work on the system
workqueue to keep our own driver workqueue free of any modeset lock
grabbing.

Note that this is not a terribly serious regression since before the
offending commit we'd simply have stalled userspace forever due to
failing to abort all outstanding pageflips.

v2: Add a comment as requested by Chris.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>