It's per queue not per pipe.
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This reverts commit a693e050.

This breaks on systems with huge amounts of system memory as we do not have
enough vram to store the page tables.  Additionally, this is less of an issue
with the recent gtt manager changes.
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Allows MXM DCB modification to be handled on GM20x and newer boards.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

I suspect the version bump is just to signify that the table now specifies
pad macro/links instead of SOR/sublinks.

For our usage of the table, just recognising the new version is enough.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Commit aeefb368 ("drm/exynos: gsc: add device tree support and remove
usage of static mappings") made the DRM_EXYNOS_GSC Kconfig symbol to only
be selectable if the exynos-gsc V4L2 driver isn't enabled, since both use
the same HW IP block.

But added the dependency as depends on !VIDEO_SAMSUNG_EXYNOS_GSC which is
not correct since Kconfig expressions are not boolean but tristate. So it
will only evaluate to 'n' if VIDEO_SAMSUNG_EXYNOS_GSC=y but will evaluate
to 'm' if VIDEO_SAMSUNG_EXYNOS_GSC=m.

This means that both the V4L2 and DRM drivers can be enabled if the former
is enabled as a module, which isn't what we want since otherwise 2 drivers
could attempt to use the hardware at the same time.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Trivial fixes to spelling mistakes "precalser" to "prescaler"
in dev_err messages
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Fix exynos_drm_gem_create() error messages to include flags and size when
flags and size are invalid.
Signed-off-by: NShuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Use core helpers to generate infoframes and generate vendor frame if necessary.

Changelog:
- changed 'ret >= 0' checks to '!ret'
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

On i.MX6SX the physical memory is placed above the 2GB mark, so the GPU
linear window has to be moved for the GPU to work at all. This doesn't
mix with the FAST_CLEAR feature, as the TS unit doesn't take the linear
window offset into account and will corrupt memory when used with a
non-zero offset.

Move the linear window if it's necessary for the GPU to work, but avoid
announcing FAST_CLEAR support to userspace in this case.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Tested-by: NMarek Vasut <marex@denx.de>

The dumper is only a debugging aid so we don't want to invoke the OOM
killer if buffer for the potentially large GPU state can't be vmalloced.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>

The object internal SG table must not be returned, as the caller
will take ownership of the returned table.

Construct a new table from the object pages and return this one
instead.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>

Vivante GPUs with HALTI0 feature support a DRAW_INSTANCED command in the
command stream to draw a number of instances of the same geometry.

The information that has been figured out about the command can be found
here: https://github.com/etnaviv/etna_viv/blob/master/rnndb/cmdstream.xml#L270

This command is not allowed currently by the DRM driver because it
was not known before. This patch enables parsing it in command
streams and allows using it by userspace drivers.
Signed-off-by: NWladimir J. van der Laan <laanwj@gmail.com>
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>

This adds the required boilerplate to allow direct mmap of exported
etnaviv BOs.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Tested-by: NPhilipp Zabel <p.zabel@pengutronix.de>

The DT binding for tildc is not consistent with the driver code: there
are two options - 'max-width' and 'max-pixelclock' specified in the
documentation which are parsed as 'ti,max-width' and
'ti,max-pixelclock' respectively.

Make the driver code consistent with the binding.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: NJyri Sarha <jsarha@ti.com>
Signed-off-by: NJyri Sarha <jsarha@ti.com>

We should wait for the last frame to complete before shutting things
down also on LCDC rev 1.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Configure video mode to HW in enable() call back. There is no reason
to do it before that. This makes PM functions way easier because there
is no HW context to save when screen is for instance blanked. This
patch removes mode_set_nofb() call back from tilcdc.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Load palette at the end of mode_set_nofb(). Moving the palette loading
to mode_set_nofb() saves us from storing and restoring of framebuffer
addresses in dma registers that were just recently written there.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Add timeout wait for palette loadind to complete. We do not want to
hang forever if palette loaded interrupt does not arrive for some
reason.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

The LCDC revision 2 documentation also mentions the mandatory palette
for true color modes. Even if the rev 2 LCDC appears to work just fine
without the palette being loaded loading it helps in testing the
feature.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Set LCDC_PALETTE_LOAD_MODE bit-field with new tilcdc_write_mask()
instead of tilcdc_set(). Setting a bit-fields with tilcdc_set() is
fundamentally broken.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Add tilcdc_write_mask() for handling register field wider than one bit
and mask values for those fields.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Failed tilcdc_crtc_create() error handling was broken, this patch
should fix it.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Revision 1 of the IP doesn't work if we don't load the palette (even
if it's not used, which is the case for the RGB565 format).

Add a function called from tilcdc_crtc_enable() which performs all
required actions if we're dealing with a rev1 chip.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Revision 1 LCDC support also sync lost errors and can benefit from
sync lost recovery routine.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Adds drm bride support for attaching drm bridge drivers to tilcdc. The
decision whether a video port leads to an external encoder or bridge
is made simply based on remote device's compatible string. The code
has been tested with BeagleBone-Black with and without BeagleBone
DVI-D Cape Rev A3 using ti-tfp410 driver.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

Add very basic ti-tfp410 DVI transmitter driver. The only feature
separating this from a completely dummy bridge is the EDID read
support trough DDC I2C. Even that functionality should be in a
separate generic connector driver. However, because of missing DRM
infrastructure support the connector is implemented within the bridge
driver. Some tfp410 HW specific features may be added later if needed,
because there is a set of registers behind i2c if it is connected.

This implementation is tested against my new tilcdc bridge support
and it works with BeagleBone DVI-D Cape Rev A3. A DT binding document
is also updated.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Acked-by: NRob Herring <robh@kernel.org>

Recover from sync lost error flood by resetting the LCDC instead of
turning off the SYNC_LOST error IRQ. When LCDC starves on limited
memory bandwidth it may sometimes result an error situation when the
picture may have shifted couple of pixels to right and SYNC_LOST
interrupt is generated on every frame. LCDC main reset recovers from
this situation and causes a brief blanking on the screen.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Tested-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>

We grab the struct_mutex in intel_crtc_page_flip, but if we are wedged
or a reset is in progress we bail early but never seem to actually
release the lock.

Fixes: 7f1847eb ("drm/i915: Simplify checking of GPU reset_counter in display pageflips")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NMatthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161128103648.9235-1-matthew.auld@intel.comReviewed-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v4.7+
(cherry picked from commit ddbb271a)
Signed-off-by: NJani Nikula <jani.nikula@intel.com>

On the DMA mapping error path, sg may be NULL (it has already been
marked as the last scatterlist entry), and we should avoid dereferencing
it again.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Fixes: e2273302 ("drm/i915: avoid leaking DMA mappings")
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/20161114112930.2033-1-chris@chris-wilson.co.ukReviewed-by: NMatthew Auld <matthew.auld@intel.com>
(cherry picked from commit b17993b7)
Signed-off-by: NJani Nikula <jani.nikula@intel.com>

Fixes oops if userspace calls DRM_IOCTL_GET_CAP for
 DRM_CAP_PAGE_FLIP_TARGET on a non-KMS device node. (Normal userspace
doesn't do that, discovered by syzkaller)
Reported-by: NDmitry Vyukov <dvyukov@google.com>
Fixes: f837297a ("drm: Add DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags v2")
Cc: stable@vger.kernel.org
Signed-off-by: NMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161130083002.1520-1-michel@daenzer.net

Fix race from forced shutdown of crtc in unload by adding internal
locking and a boolean telling if device is going to be shutdown.
Signed-off-by: NJyri Sarha <jsarha@ti.com>

Use unload to handle initialization failures instead of complex goto
label mess. To do this the initialization sequence needed slight
reordering and some unload functions needed to become conditional.
Signed-off-by: NJyri Sarha <jsarha@ti.com>

Stop using struct drm_driver load() and unload() callbacks. The
callbacks should not be used anymore. Instead of using load the
drm_device is allocated with drm_dev_alloc() and registered with
drm_dev_register() only after the driver is completely initialized.
The deinitialization is done directly either in component unbind
callback or in platform driver demove callback.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>

Remove obsolete drm_connector_register() calls from tilcdc_panel.c and
tilcdc_tfp410.c. All connectors are registered when drm_dev_register()
is called.
Signed-off-by: NJyri Sarha <jsarha@ti.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>

This error message will be printed when a FIFO underflow irq has
triggered. Since this happens sometimes and the error message will be
displayed on the console, it should have a correct spelling.
Signed-off-by: NDaniel Schultz <d.schultz@phytec.de>
Signed-off-by: NJyri Sarha <jsarha@ti.com>

The commit d8ff0c63fbcb ("drm/tilcdc: Adjust the FB_CEILING address")
added an adjustment of the FB_CEILING address. This is done by decrementing
the address by one.

On the AM335x (rev 0x4F201000) the framebuffer is rotated left over the
display border, because the ceiling address is 8f276fff instead of
8f277000. Since this adjustment isn't necessary for the LCDC v2, the
origin ceiling address should be used.
Signed-off-by: NDaniel Schultz <d.schultz@phytec.de>
Signed-off-by: NJyri Sarha <jsarha@ti.com>

Due to some potential tweaks for the da850 LCDC (for example: the
required memory bandwith settings) we need a separate compatible
for the IP present on the da850 boards.
Suggested-by: NSekhar Nori <nsekhar@ti.com>
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJyri Sarha <jsarha@ti.com>

Some architectures don't use the common clock framework and don't
implement all the clk interfaces for every clock. This is the case
for da850-lcdk where clk_set_rate() only works for PLL0 and PLL1.

Trying to set the clock rate for the LCDC clock results in -EINVAL
being returned.

As a workaround for that: if the call to clk_set_rate() fails, fall
back to adjusting the clock divider instead. Proper divider value is
calculated by dividing the current clock rate by the required pixel
clock rate in HZ.

This code is based on a hack initially developed internally for
baylibre by Karl Beldan <kbeldan@baylibre.com>.

Tested with a da850-lcdk with an LCD display connected over VGA.
Signed-off-by: NBartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: NJyri Sarha <jsarha@ti.com>

The ATPX method does not always exist on the dGPU, it may be located at
the iGPU. The parent device of the iGPU is the root port for which
bridge_d3 is false. This accidentally enables the legacy PM method which
conflicts with port PM and prevented the dGPU from powering on.

Ported from amdgpu commit:
drm/amdgpu: fix check for port PM availability
from Peter Wu.

Fixes: d3ac31f3 (drm/radeon: fix power state when port pm is unavailable (v2))
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: Peter Wu <peter@lekensteyn.nl>
Cc: <stable@vger.kernel.org> # 4.8+