This is a ums-only ioctl, and we've only ever supported ums (at least
in upstream) on pci devices. So no point in keeping that piece of
legacy logic abstracted within the drm bus driver.
To keep things work without CONFIG_PCI also add a dummy ioctl.
v2: Block the irq_by_busid ioctl for modeset drivers.
v3: Spelling/whitespace polish (Thierry)
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Checking for both an irq number _and_ whether it's enabled is
redundant. Originally I've thought the drm_dev_to_irq call would break
drivers which do their own irq checking, but those shouldn't have
DRIVER_HAVE_IRQ set as Thierry Reding pointed out. But such drivers
already need to set dev->irq_enabled for other reasons, so we might as
well ditch that check, too.
v2: Also drop the HAVE_IRQ check.
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
By the time drm_mode_config_cleanup calls this all the hw state should
be cleaned up already - we even have a WARN right before calling
plane->destroy callbacks asserting that all framebuffers are gone.
So trying to disable things harder is a bit a bug. Caught by Thierry
since it resulted in some mode_config.mutex locking backtraces.
Cc: Thierry Reding <treding@nvidia.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The src_w / src_h parameters to update_plane include a subpixel offset;
we need to shift off the subpixel bits before comparing to CRTC size
when checking for primary plane scaling.
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Many drm connectors do not need mode validation.
The patch makes this callback optional and removes dumb implementations.
v2: Rebase:
- imx move to a shared (but still dummy) ->mode_valid implementation.
- probe helpers have been extracted to drm_probe_helper.c
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The hpd (hot plug detect) pin assignment got lost
in the conversion to to the common i2c over aux
code. Without this information, aux transactions
do not work properly. Fixes DP failures.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Populate PAR in infoframe structure. If there is a user setting for PAR, then
that value is set. Else, value is taken from CEA mode list if VIC is found.
Else, PAR is calculated from resolution. If none of these conditions are
satisfied, PAR is NONE as per initialization.
v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.
A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.
v2: Removed the part which sets PAR according to user input, based on
Daniel's review comments.
v3: Removed calculation of PAR for non-CEA modes as per discussion with
Ville.
A separate patch will be submitted to create a property that would enable a
user space app to set aspect ratio for AVI infoframe.
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Cc: Jesse Barnes <jesse.barnes@intel.com>
Cc: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Squash in fixup for htmldocs.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Some i2c fixes over DisplayPort.
* 'drm-next-3.15-wip' of git://people.freedesktop.org/~deathsimple/linux:
drm/radeon: Improve vramlimit module param documentation
drm/radeon: fix audio pin counts for DCE6+ (v2)
drm/radeon/dp: switch to the common i2c over aux code
drm/dp/i2c: Update comments about common i2c over dp assumptions (v3)
drm/dp/i2c: send bare addresses to properly reset i2c connections (v4)
drm/radeon/dp: handle zero sized i2c over aux transactions (v2)
drm/i915: support address only i2c-over-aux transactions
drm/tegra: dp: Support address-only I2C-over-AUX transactions
bochs kms driver lacks power management support, thus
the vga display doesn't work any more after S3 resume.
Fix this by adding suspend and resume functions.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
cirrus kms driver lacks power management support, thus
the vga display doesn't work any more after S3 resume.
Fix this by adding suspend and resume functions.
Also make the mode_set function unblank the screen.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This is leftover stuff from my previous doc round which I kinda wanted
to do but didn't yet due to rebase hell.
The modeset helpers and the probing helpers a independent and e.g.
i915 uses the probing stuff but has its own modeset infrastructure. It
hence makes to split this up. While at it add a DOC: comment for the
probing libraray.
It would be rather neat to pull some of the DocBook documenting these
two helpers into in-line DOC: comments. But unfortunately kerneldoc
doesn't support markdown or something similar to make nice-looking
documentation, so the current state is better.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
After thinking about this topic a bit more I've reached the conclusion
that implementing this doesn't make sense:
- The locking is all wrong: set_config(NULL) will also unlink encoders
and connectors, but those links are protected with the mode_config
mutex. In the ->disable_plane callback we only hold all modeset
locks, but eventually we want to switch to just grabbing the
per-crtc (and maybe per-plane) locks as needed, maybe based on
ww_mutexes. Having a callback which absolutely needs all modeset
locks is bad for this conversion.
Note that the same isn't true for the provided ->update_plane since
we've audited the crtc helpers to make sure that not encoder or
connector links are changed.
- There's no way to re-enable the plane with an ->update_plane: The
connectors/encoder links are lost and so we can't re-enable the
CRTC. Even without that issue the driver might have reassigned some
shared resources (as opposed to e.g. DPMS off, where drivers are not
allowed to do that to make sure the CRTC can be enabled again).
- The semantics don't make much sense: Userspace asked to scan out
black (or some other color if the driver supports a background
color), not that the screen be disabled.
- Implementing proper primary plane support (i.e. actually disabling
the primary plane without disabling the CRTC) is really simple, at
least if all the hw needs is flipping a bit. The big task is
auditing all the interactions with other ioctls when the CRTC is on
but there's no primary plane (e.g. pageflips). And some of that work
still needs to be done.
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
this is a typo vs the ums driver, fix to check correct value.
Found initially by Coverity.
Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Commit 457e77b264 added two checks applied to a
value received from nv_rd32(bios, 0x619f04). But after this new piece of code
is executed, the addr local variable does not hold the same value it used to
hold before the commit. Here is what is was assigned in the original code:
(u64)(nv_rd32(bios, 0x619f04) & 0xffffff00) << 8
in the committed code it ends up with this value:
(u64)(nv_rd32(bios, 0x619f04) >> 8) << 8
These expressions are obviously not equivalent.
My Nvidia video card does not show anything on the display when I boot a
kernel containing this commit.
The patch fixes the code so that the new checks are still done, but the
side effect of an incorrect addr value is gone.
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fixes for omapdrm, some of which were already present in 3.14, and some which
appeared in 3.15-rc1:
- fixes for primary-plane handling which caused crashes
- fix all kinds of uninit issues which prevented from unloading the omapdrm
module.
- fixes for HDMI enable/disable issues
* tag 'omapdrm-fixes-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
drm/omap: fix the handling of fb ref counts
drm/omap: protect omap_crtc's event with event_lock spinlock
drm/omap: Use old_fb to synchronize between successive page flips
drm/omap: Fix crash when using LCD3 overlay manager
drm/omap: gem sync: wait on correct events
drm/omap: Fix memory leak in omap_gem_op_async
drm/omap: remove warn from debugfs
drm/omap: remove extra plane->destroy from crtc destroy
drm/omap: print warning when rotating non-TILER fb
drm/omap: fix missing unref to fb's buf object
drm/omap: fix plane rotation
drm/omap: fix enabling/disabling of video pipeline
drm/omap: fix missing disable for unused encoder
drm/omap: fix race issue when unloading omapdrm
drm/omap: fix DMM driver (un)registration
drm/omap: fix uninit order in pdev_remove()
drm/omap: fix output enable/disable sequence
1. Fixing PLL regressions
2. A couple of memory reclocking and DPM fixes
3. Small cleanups
* 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux:
drm/radeon/ci: make sure mc ucode is loaded before checking the size
drm/radeon/si: make sure mc ucode is loaded before checking the size
drm/radeon: improve PLL params if we don't match exactly v2
drm/radeon: memory leak on bo reservation failure. v2
drm/radeon: fix VCE fence command
drm/radeon: re-enable mclk dpm on R7 260X asics
drm/radeon: add support for newer mc ucode on CI (v2)
drm/radeon: add support for newer mc ucode on SI (v2)
drm/radeon: apply more strict limits for PLL params v2
drm/radeon: update CI DPM powertune settings
drm/radeon: fix runpm handling on APUs (v4)
drm/radeon: disable mclk dpm on R7 260X
drm/tegra: Fixes for v3.15-rc2
This contains a fix for the host1x driver writing to non-existent syncpt
registers.
A second commit removes an excess pad field in the parameter structure
for the DRM_TEGRA_SUBMIT IOCTL. Archeaology on earlier versions of this
file indicates that this was once there to pad an uneven number of u32
u32 fields, of which one was subsequently removed. Unfortunately nobody
remembered to get rid of the padding when that happened.
Both of these commits are Cc: stable because they fix issues that were
introduced back in v3.10.
* tag 'drm/tegra/for-3.15-rc2' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: Remove gratuitous pad field
gpu: host1x: handle the correct # of syncpt regs
Due to a type mismatch that causes an implicit type conversion, the
upper 32 bits of the GPU address have been zeroed out when adding to the
command buffer.
Picked up by Coverity - CID 1198624.
Signed-off-by: Christoph Jaeger <christophjaeger@linux.com>
Letting post and refernce divider get to big is bad for signal stability.
v2: increase the limit to 210
Signed-off-by: Christian König <christian.koenig@amd.com>
The pipe is off at that point in time, so a vblank wait is simply a
50ms wait. Caught by Jesse's verbose "make vblank wait timeouts WARN"
patch. We've probably had a few versions of this float around already.
To document assumptions put a pipe assert into the same place. And
also add a posting read.
If we ever decide to update the eld and infoframes while the pipe is
already on (e.g. for fastboot) then there's lots of work to do. So
better properly document all the hidden assumptions.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
BIT_WORD() truncates rather than rounds, so the loops in
syncpt_thresh_isr() and _host1x_intr_disable_all_syncpt_intrs() use <=
rather than < in an attempt to process the correct number of registers
when rounding of the conversion of count of bits to count of words is
necessary. However, when rounding isn't necessary because the value is
already a multiple of the divisor (as is the case for all values of
nb_pts the code actually sees), this causes one too many registers to
be processed.
Solve this by using and explicit DIV_ROUND_UP() call, rather than
BIT_WORD(), and comparing with < rather than <=.
Fixes: 7ede0b0bf3 ("gpu: host1x: Add syncpoint wait and interrupts")
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Some fixes from Intel.
* tag 'drm-intel-fixes-2014-04-11' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Always use kref tracking for all contexts.
drm/i915: do not setup backlight if not available according to VBT
drm/i915: check VBT for supported backlight type
drm/i915: Disable self-refresh for untiled fbs on i915gm
drm/mm: Don't WARN if drm_mm_reserve_node
This cleans up the checkpatch errors for the merged commit -
commit d3b542fcfc
Author: Shobhit Kumar <shobhit.kumar@intel.com>
Date: Mon Apr 14 11:00:34 2014 +0530
drm/i915: Add parsing support for new MIPI blocks in VBT
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
When linking the i2c sysfs file into the connector's directory
pass directory and link target in the right order.
This code was introduced with:
commit 931c1c2698
Author: Imre Deak <imre.deak@intel.com>
Date: Tue Feb 11 17:12:51 2014 +0200
drm/i915: sdvo: add i2c sysfs symlink to the connector's directory
This is the same what we do for DP connectors, so make things more
consistent.
Signed-off-by: Egbert Eich <eich@suse.de>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
With the recent primary-plane changes for drm, the primary plane's
framebuffer needs to be ref counted the same way as for
non-primary-planes. This was not done by the omapdrm driver, which
caused the ref count to drop to 0 too early, causing problems.
This patch moves the fb unref and ref from omap_plane_update to
omap_plane_mode_set. This way the fb refs are updated for both primary
and non-primary cases, as omap_plane_update calls omap_plane_mode_set.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The vblank_cb callback and the page_flip ioctl can occur together in different
CPU contexts. vblank_cb uses takes tje drm device's event_lock spinlock when
sending the vblank event and updating omap_crtc->event and omap_crtc->od_fb.
Use the same spinlock in page_flip, to make sure the above omap_crtc parameters
are configured sequentially.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omap_crtc->old_fb is used to check whether the previous page flip has completed
or not. However, it's never initialized to anything, so it's always NULL. This
results in the check to always succeed, and the page_flip to proceed.
Initialize old_fb to the fb that we intend to flip to through page_flip, and
therefore prevent a future page flip to proceed if the last one didn't
complete.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
The channel_names list didn't have a string populated for LCD3 manager, this
results in a crash when the display's output is connected to LCD3. Add an entry
for LCD3.
Reported-by: Somnath Mukherjee <somnath@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
A waiter of the type OMAP_GEM_READ should wait for a buffer to be completely
written, and only then proceed with reading it. A similar logic applies for
waiters with OMAP_GEM_WRITE flag.
Currently the function is_waiting() waits on the read_complete/read_target
counts in the sync object.
This should be the other way round, as a reader should wait for users who are
'writing' to this buffer, and vice versa.
Make readers of the buffer(OMAP_GEM_READ) wait on the write counters, and
writers to the buffer(OMAP_GEM_WRITE) wait on the read counters in is_waiting()
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
In omap_gem_op_async(), if a waiter is not added to the wait list, it needs to
be free'd in the function itself.
Make sure we free the waiter for this case.
Signed-off-by: Subhajit Paul <subhajit_paul@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Patch dfe96ddcfa (omapdrm: simplify locking in
the fb debugfs file) removed taking locks when using omapdrm's debugfs
to dump fb objects.
However, in omap_gem_describe we give a WARN is the lock has not been
taken, so that WARN is now seen every time omapdrm debugfs is used.
So, presuming the removal of locks is ok, we can also remove the WARN.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
All the planes, including primary planes, are now destroyed by the drm
framework. Thus we no longer need the explicit call to plane->destroy
from the crtc's destroy function.
This patch removes the call, thus fixing the crash caused by double
freeing the plane.
remove omap_crtc->plane->funcs->destroy(omap_crtc->plane)
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
