Commit Graph

113 Commits

Author SHA1 Message Date
Hans de Goede cb7b145a25 modesetting: Fix msSharePixmapBacking returning a non-linear bo
glamor_fd_from_pixmap() may return a tiled bo, which is not suitable
for sharing with another GPU as tiling usually is GPU specific.

Switch to glamor_shareable_fd_from_pixmap(), which always returns a
linear bo. This fixes mis-rendering when running the mode setting
driver on the master gpu in a dual-gpu setup and running an opengl
app with DRI_PRIME=1.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2016-09-13 10:26:25 +02:00
Adam Jackson 4b311d23e8 modesetting: resubmit dirty rects on EINVAL (v2)
This error code can mean we're submitting more rects at once than the
driver can handle. If that happens, resubmit one at a time.

v2: Make the rect submit loop more error-proof (Walter Harms)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Michael Thayer <michael.thayer@oracle.com>
2016-07-18 16:35:16 -04:00
Keith Packard fb0802113b Remove readmask from screen block/wakeup handler
With no users of the interface needing the readmask anymore, we can
remove it from the argument passed to these functions.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2016-07-18 15:27:51 -04:00
Hans de Goede 60ad701a6a modesetting: Load on GPU-s with 0 outputs
In newer laptops with switchable graphics, the GPU may have 0 outputs,
in this case the modesetting driver should still load if the GPU is
SourceOffload capable, so that it can be used as an offload source provider.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-02 09:54:07 +02:00
Hans de Goede 94a1c77259 modesetting: Fix swapping of provider sink / source capabilities
When a card has import capability it can be an offload _sink_, not
a source and vice versa for export capability.

This commit fixes the modesetting driver to properly set these
capabilities, this went unnoticed sofar because most gpus have both
import and export capability.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2016-07-02 09:54:07 +02:00
Adam Jackson fcbafdfd79 modesetting: Implement a double-buffered shadow mode
Server GPUs often have a VNC feature attached to allow remote console.
The controller implementing this feature is usually not very powerful,
and we can easily swamp it with work.  This is made somewhat worse by
damage over-reporting the size of the dirty region, and a whole lot
worse by applications (or shells) that update the screen with identical
pixel content as was already there.

Fix this by double-buffering the shadow fb, using memcmp to identify
dirty tiles on each update pass.  Since both shadows are in host memory
the memcmp is cheap, and worth it given the win in network bandwidth.
The tile size is somewhat arbitrarily chosen to be one cacheline wide at
32bpp on Intel Core.

By default we enable this behaviour for (a subset of) known server GPUs;
the heuristic could use work.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-02 09:54:07 +02:00
Dave Airlie 21217d0216 modesetting: Implement 32->24 bpp conversion in shadow update
24bpp front buffers tend to be the least well tested path for client
rendering.  On the qemu cirrus emulation, and on some Matrox G200 server
chips, the hardware can't do 32bpp at all.  It's better to just allocate
a 32bpp shadow and downconvert in the upload hook than expose a funky
pixmap format to clients.

[ajax: Ported from RHEL and separate modesetting driver, lifted kbpp
into the drmmode struct, cleaned up commit message, fixed 16bpp]

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlied <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
[hdegoede@redhat.com: rebase, also use kbpp for rotate shadow fb]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-07-02 09:28:04 +02:00
Alex Goins b83dede9cb modesetting: Implement PRIME syncing as a source
Implements (Start/Stop)FlippingPixmapTracking, PresentSharedPixmap, and
RequestSharedPixmapNotifyDamage, the source functions for PRIME
synchronization and double buffering. Allows modesetting driver to be used
as a source with PRIME synchronization.

v1: N/A
v2: N/A
v3: N/A
v4: Initial commit
v5: Move disabling of reverse PRIME on sink to sink commit
v6: Rebase onto ToT
v7: Unchanged

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
2016-06-28 12:56:45 -04:00
Alex Goins 44cb9578c0 modesetting: Disable Reverse PRIME for i915
Reverse PRIME seems to be designed with discrete graphics as a sink in
mind, designed to do an extra copy from sysmem to vidmem to prevent a
discrete chip from needing to scan out from sysmem.

The criteria it used to detect this case is if we are a GPU screen and
Glamor accelerated. It's possible for i915 to fulfill these conditions,
despite the fact that the additional copy doesn't make sense for i915.

Normally, you could just set AccelMethod = none as an option for the device
and call it a day. However, when running with modesetting as both the sink
and the source, Glamor must be enabled.

Ideally, you would be able to set AccelMethod individually for devices
using the same driver, but there seems to be a bug in X option parsing that
makes all devices on a driver inherit the options from the first detected
device. Thus, glamor needs to be enabled for all or for none until that bug
(if it's even a bug) is fixed.

Nonetheless, it probably doesn't make sense to do the extra copy on i915
even if Glamor is enabled for the device, so this is more user friendly by
not requiring users to disable acceleration for i915.

v1: N/A
v2: N/A
v3: N/A
v4: Initial commit
v5: Unchanged
v6: Rebase onto ToT
v7: NULL check and free drmVersionPtr

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
2016-06-28 12:56:43 -04:00
Alex Goins f6fef2a171 modesetting: Blacklist USB transport devices from PRIME sync
UDL (USB 2.0 DisplayLink DRM driver) and other drivers for USB transport devices
have strange semantics when it comes to vblank events, due to their inability to
get the actual vblank info.

When doing a page flip, UDL instantly raises a vblank event without waiting for
vblank. It also has no support for DRM_IOCTL_WAIT_VBLANK, and has some strange
behavior with how it handles damage when page flipping.

It's possible to get something semi-working by hacking around these issues,
but even then there isn't much value-add vs single buffered PRIME, and it
reduces maintainability and adds additional risks to the modesetting driver
when running with more well-behaved DRM drivers.

Work needs to be done on UDL in order to properly support synchronized
PRIME. For now, just blacklist it, causing RandR to fall back to
unsynchronized PRIME.

This patch originally blacklisted UDL by name, but it was pointed out that there
are other USB transport device drivers with similar limitations, so it was
expanded to blacklist all USB transport devices.

v1: N/A
v2: N/A
v3: Initial commit
v4: Move check to driver.c for consistency/visibility
v5: Refactor to accomodate earlier changes
v6: Rebase onto ToT
v7: Expand to blacklist all USB transport devices, not just UDL

Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2016-06-28 12:56:37 -04:00
Alex Goins 80e64dae8a modesetting: Implement PRIME syncing as a sink
Implements (Enable/Disable)SharedPixmapFlipping and
SharedPixmapNotifyDamage, the sink functions for PRIME synchronization and
double buffering. Allows modesetting driver to be used as a sink with PRIME
synchronization.

Changes dispatch_slave_dirty to flush damage from both scanout pixmaps.

Changes drmmode_set_scanout_pixmap*() functions to
drmmode_set_target_scanout_pixmap*() that take an additional parameter
PixmapPtr *target. Then, treat *target as it did prime_pixmap. This allows
me to use it to explicitly set both prime_pixmap and prime_pixmap_back
individually. drmmode_set_scanout_pixmap() without the extra parameter
remains to cover the single-buffered case, but only works if we aren't
already double buffered.

driver.c:
    Add plumbing for rr(Enable/Disable)SharedPixmapFlipping and
    SharedPixmapNotifyDamage.

    Change dispatch_dirty_crtc to dispatch_dirty_pixmap, which functions the
    same but flushes damage associated with a ppriv instead of the crtc, and
    chanage dispatch_slave_dirty to use it on both scanout pixmaps if
    applicable.

drmmode_display.h:
    Add flip_seq field to msPixmapPrivRec to keep track of the event handler
    associated with a given pixmap, if any.

    Add wait_for_damage field to msPixmapPrivRec to keep track if we have
    requested a damage notification from the source.

    Add enable_flipping field to drmmode_crtc_private_rec to keep track if
    flipping is enabled or disabled.

    Add prime_pixmap_back to drmmode_crtc_private_rec to keep track of back
    buffer internally.

    Add declarations for drmmode_SetupPageFlipFence(),
    drmmode_EnableSharedPixmapFlipping(),
    drmmode_DisableSharedPixmapFlipping, drmmode_SharedPixmapFlip(), and
    drmmode_SharedPixmapPresentOnVBlank().

    Move slave damage from crtc to ppriv.

drmmode_display.c:
    Change drmmode_set_scanout_pixmap*() functions to
    drmmode_set_target_scanout_pixmap*() that take an additional parameter
    PixmapPtr *target for explicitly setting different scanout pixmaps.

    Add definitions for functions drmmode_SharedPixmapFlip(),
    drmmode_SharedPixmapPresentOnVBlank(),
    drmmode_SharedPixmapPresent(),
    drmmode_SharedPixmapVBlankEventHandler(),
    drmmode_SharedPixmapVBlankEventAbort(),
    drmmode_EnableSharedPixmapFlipping(), and
    drmmode_DisableSharedPixmapFlipping,
    drmmode_InitSharedPixmapFlipping(), and
    drmmode_FiniSharedPixmapFlipping, along with struct
    vblank_event_args.

    The control flow is as follows:
        pScrPriv->rrEnableSharedPixmapFlipping() makes its way to
        drmmode_EnableSharedPixmapFlipping(), which sets enable_flipping to
        TRUE and sets both scanout pixmaps prime_pixmap and
        prime_pixmap_back.

        When setting a mode, if prime_pixmap is defined, modesetting
        driver will call drmmode_InitSharedPixmapFlipping(), which if
        flipping is enabled will call drmmode_SharedPixmapPresent() on
        scanout_pixmap_back.

        drmmode_SharedPixmapPresent() requests that for the source to
        present on the given buffer using master->PresentSharedPixmap(). If
        it succeeds, it will then attempt to flip to that buffer using
        drmmode_SharedPixmapFlip(). Flipping shouldn't fail, but if it
        does, it will raise a warning and try drmmode_SharedPixmapPresent()
        again on the next vblank using
        drmmode_SharedPixmapPresentOnVBlank().

        master->PresentSharedPixmap() could fail, in most cases because
        there is no outstanding damage on the mscreenpix tracked by the
        shared pixmap. In this case, drmmode_SharedPixmapPresent() will
        attempt to use master->RequestSharedPixmapNotifyDamage() to request
        for the source driver to call slave->SharedPixmapNotifyDamage() in
        response to damage on mscreenpix. This will ultimately call
        into drmmode_SharedPixmapPresentOnVBlank() to retry
        drmmode_SharedPixmapPresent() on the next vblank after
        accumulating damage.

        drmmode_SharedPixmapFlip() sets up page flip event handler by
        packing struct vblank_event_args with the necessary parameters, and
        registering drmmode_SharedPixmapVBlankEventHandler() and
        drmmode_SharedPixmapVBlankEventAbort() with the modesetting DRM
        event handler queue. Then, it uses the drmModePageFlip() to flip on
        the next vblank and raise an event.

        drmmode_SharedPixmapPresentOnVBlank() operates similarly to
        drmmode_SharedPixmapFlip(), but uses drmWaitVBlank() instead of
        drmModePageFlip() to raise the event without flipping.

        On the next vblank, DRM will raise an event that will ultimately be
        handled by drmmode_SharedPixmapVBlankEventHandler(). If we flipped,
        it will update prime_pixmap and prime_pixmap_back to reflect that
        frontTarget is now being displayed, and use
        drmmode_SharedPixmapPresent(backTarget) to start the process again
        on the now-hidden shared pixmap. If we didn't flip, it will just
        use drmmode_SharedPixmapPresent(frontTarget) to start the process
        again on the still-hidden shared pixmap.

        Note that presentation generally happens asynchronously, so with
        these changes alone tearing is reduced, but we can't always
        guarantee that the present will finish before the flip. These
        changes are meant to be paired with changes to the sink DRM driver
        that makes flips wait on fences attached to dmabuf backed buffers.
        The source driver is responsible for attaching the fences and
        signaling them when presentation is finished.

        Note that because presentation is requested in response to a
        vblank, PRIME sources will now conform to the sink's refresh rate.

        At teardown, pScrPriv->rrDisableSharedPixmapFlipping() will be
        called, making its way to drmmode_FiniSharedPixmapFlipping().
        There, the event handlers for prime_pixmap and prime_pixmap_back
        are aborted, freeing the left over parameter structure. Then,
        prime_pixmap and prime_pixmap back are unset as scanout pixmaps.

    Register and tear down slave damage per-scanout pixmap instead of
    per-crtc.

v1: Initial commit
v2: Renamed PresentTrackedFlippingPixmap to PresentSharedPixmap
    Renamed flipSeq to flip_seq
    Warn if flip failed
    Use SharedPixmapNotifyDamage to retry on next vblank after damage
v3: Refactor to accomodate moving (rr)StartFlippingPixmapTracking and
    (rr)(Enable/Disable)SharedPixmapFlipping to rrScrPrivRec from ScreenRec
    Do damage tracking on both scanout pixmaps
v4: Tweaks to commit message
v5: Revise for internal storage of prime pixmap ptrs
    Move disabling for reverse PRIME from source commit to here
    Use drmmode_set_target_scanout_pixmap*() to set scanout pixmaps
    internally to EnableSharedPixmapFlipping().
    Don't support flipping if ms->drmmode.pageflip == FALSE.
    Move flipping_active check to this commit
v6: Rebase onto ToT
v7: Unchanged

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
2016-06-28 12:56:30 -04:00
Alex Goins 378c85a884 modesetting: Always load ms->drmmode.pageflip
ms->drmmode.pageflip was only loaded from options if ms->drmmode.glamor was
defined, otherwise it would always assume FALSE.

PRIME Synchronization requires ms->drmmode.pageflip even if we aren't using
glamor, so load it unconditionally.

v1: N/A
v2: N/A
v3: N/A
v4: N/A
v5: Initial commit
v6: Rebase onto ToT
v7: Unchanged

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
2016-06-28 12:56:27 -04:00
Alex Goins f4c37eeee7 modesetting: Internal storage of scanout pixmaps
modesetting relied on randr_crtc->scanout_pixmap being consistent with
calls to SetScanoutPixmap, which is very fragile and makes a lot of
assumptions about the caller's behavior.

For example, RRReplaceScanoutPixmap(), when dropping off with !size_fits,
will set randr_crtc->scanout_pixmap = NULL and then call SetScanoutPixmap.
Without this patch, drmmode_set_scanout_pixmap_(cpu/gpu) will think that
there is no scanout pixmap to tear down, because it's already been set to
NULL.

By keeping track of the scanout pixmap in its internal state, modesetting
can avoid these types of bugs and reduce constraints on calling
conventions.

v1: N/A
v2: N/A
v3: N/A
v4: N/A
v5: Initial commit
v6: Rebase onto ToT
v7: Unchanged

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Goins <agoins@nvidia.com>
2016-06-28 12:56:21 -04:00
Dave Airlie a6b6e8ba02 prime: clean up slave bo properly. (v3)
This is an ABI break, in that we now pass NULL to a function that hasn't
accepted it before.

Alex Goins had a different patch for this but it wasn't symmetrical, it
freed something in a very different place than it allocated it, this
attempts to retain symmetry in the releasing of the backing bo.

v2: use a new toplevel API, though it still passes NULL to something
that wasn't expecting it.
v3: pass -1 instead of 0.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Alex Goins <agoins at nvidia.com>
2016-06-08 12:51:51 -04:00
Dave Airlie 2378adde67 modesetting: set capabilities up after glamor and enable offload caps.
This moves the capabilites setting to after glamor is initialised, and
enables the offload caps in cases where they work. This enables DRI2
PRIME support with modesetting.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-05-04 15:33:10 -04:00
Dave Airlie a41a171bcb modesetting: set driverPrivate to NULL after closing fd.
Otherwise ms_ent_priv will return NULL and things will fall apart.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-05-04 15:33:10 -04:00
Alex Goins 2d0f151c61 modesetting: Consistent whitespace in driver.c
For some reason a couple of the dirty functions in driver.c used 8
spaces per tab instead of 4 like the rest of the file. Fix this to make
it more consistent and give me more room to work in ms_dirty_update in
subsequent commits.

v1: N/A
v2: N/A
v3: N/A
v4: Initial commit

Signed-off-by: Alex Goins <agoins@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-04 15:33:10 -04:00
Dave Airlie fa02b05645 modesetting: port clean start code from amdgpu. (v2)
Both radeon and amdgpu don't set the mode until the first blockhandler,
this means everything should be rendered on the screen correctly by
then.

This ports this code, it also removes the tail call of EnterVT from
ScreenInit, it really isn't necessary and causes us to set a dirty mode
with -modesetting always anyways.

v2: reorder set desired modes vs block handler as done for amdgpu.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2016-05-02 18:21:19 -04:00
Dave Airlie caabc4e855 modesetting: add support for background none.
This adds support using glamor for background None.

loosely based off the amdgpu code. relies on the glamor_finish code.

Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-05-02 18:21:10 -04:00
Thomas Klausner 862cbf4c87 Fix build when XSERVER_PLATFORM_BUS is not defined.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Thomas Klausner <wiz@NetBSD.org>
2016-01-06 10:10:14 -05:00
Dave Airlie 548a3d5fd6 modesetting: create entities for pci and old probe. (v2)
This moves the code from the platform case into
a common function, and calls that from the
other two.

v2: Emil convinced me we don't need to lookup pEnt
here, so let's not bother.

Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-12-07 11:20:26 +10:00
Dave Airlie 771016f070 modesetting: drop platform_dev pointer.
This isn't used anywhere, so no point storing it until we need it.

Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-12-07 11:20:26 +10:00
Dave Airlie 19e1dc8f6e modesetting: add zaphod support (v3)
This adds zaphod and ZaphodHeads support
to the the in-server modesetting driver.

this is based on a request from Mario,
and on the current radeon driver, along
with some patches from Mario to bring things
up to the state of the art in Zaphod.

v2: fixup vblank fd registring.
v3: squash Mario's fixes.
  modesetting: Allow/Fix use of multiple ZaphodHead outputs per x-screen.
  modesetting: Take shift in crtc positions for ZaphodHeads configs into account.
  modesetting: Add ZaphodHeads description to man page.
small cleanups (airlied).

Reviewed-and-tested-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-08-13 00:36:03 +01:00
Dave Airlie 90db5edf11 prime: add rotation support for offloaded outputs (v2)
One of the lacking features with output offloading was
that screen rotation didn't work at all.

This patch makes 0/90/180/270 rotation work with USB output
and GPU outputs.

When it allocates the shared pixmap it allocates it rotated,
and any updates to the shared pixmap are done using a composite
path that does the rotation. The slave GPU then doesn't need
to know about the rotation and just displays the pixmap.

v2:
rewrite the sync dirty helper to use the dst pixmap, and
avoid any strange hobbits and rotations.

This breaks ABI in two places.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2015-07-08 11:13:09 -07:00
Dave Airlie e3624aa5fd xserver: fix build with glamor disabled.
This fixes modesetting when glamor is disabled.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2015-07-06 12:01:33 -07:00
Kenneth Graunke 13c7d53df8 modesetting: Implement page flipping support for Present.
Based on code by Keith Packard, Eric Anholt, and Jason Ekstrand.

v2:
- Fix double free and flip_count underrun (caught by Mario Kleiner).
- Don't leak flip_vblank_event on the error_out path (Mario).
- Use the updated ms_flush_drm_events API (Mario, Ken).

v3: Hack around DPMS shenanigans.  If all monitors are DPMS off, then
    there is no active framebuffer; attempting to pageflip will hit the
    error_undo paths, causing us to drmModeRmFB with no framebuffer,
    which confuses the kernel into doing full modesets and generally
    breaks things.  To avoid this, make ms_present_check_flip check that
    some CRTCs are enabled and DPMS on.  This is an ugly hack that would
    get better with atomic modesetting, or some core Present work.

v4:
- Don't do pageflipping if CRTCs are rotated (caught by Jason Ekstrand).
- Make pageflipping optional (Option "PageFlip" in xorg.conf.d), but
  enabled by default.

v5: Initialize num_crtcs_on to 0 (caught by Michel Dänzer).

[airlied: took over]
v6: merge async flip support from Mario Kleiner
free sequence after failed vblank queue
handle unflip while DPMS'ed off (Michel)
move flip tracking into its own structure, and
fix up reference counting issues, and add comments.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
2015-06-30 13:44:09 +10:00
Dave Airlie 4342369e84 modesetting: don't try and load dri2
Since we are shipped with the server and the server has it built-in,
don't bother trying to load it.

Don't remove or invert the if statement on purpose as a later
patch adds stuff in here.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-30 13:44:09 +10:00
Dave Airlie 7328fb3f2b modesetting: reverse prime support (v1.1)
This adds support for reverse prime to the modesetting driver.

Reverse prime is where we have two GPUs in the display chain,
but the second GPU can't scanout from the shared pixmap, so needs
an extra copy to the on screen pixmap.

This allows modesetting to support this scenario while still
supporting the USB offload one.

v1.1:
fix comment + ret = bits (Eric)

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-30 12:17:56 +10:00
Dave Airlie a79fbfd707 modesetting: add output master support
This allows a glamor enabled master device to have
slave USB devices attached.

Tested with modesetting on SNB + USB.

It relies on the previous patch to export linear
buffers from glamor.

Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-30 12:17:55 +10:00
Alan Coopersmith 4cb1034906 Convert hw/xfree86 to new *allocarray functions
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-04-21 16:58:08 -07:00
Keith Packard 697f8581e0 glamor: Eliminate GLAMOR_USE_SCREEN and GLAMOR_USE_PICTURE_SCREEN
Remove these defines as we start to remove support for non-standard
glamor layering as used by the intel driver.

v2: Rebase on the blockhandler change and the Xephyr init failure
    change (by anholt), fix stray NO_DRI3 addition to xwayland.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2015-03-24 12:01:39 -07:00
Keith Packard 3d12941b40 drivers/modesetting: Save current BlockHandler on return in msBlockHandler
If the BlockHandler chain is modified while it is active, we need to
re-fetch the current value and store it in our private for use the
next time through.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2015-01-23 09:06:41 -08:00
Jasper St. Pierre 4e12d7b6f4 modesetting: Update the cursor without hiding it
In the new KMS APIs, the legacy drmModeSetCursor ioctl actually waits
for a vblank after changing the cursor image before returning, meaning
that the X server, in attempting to hide the cursor before updating
its image, actually makes that hide *visible* for a full vblank.

It's unknown why the X server does this by default, but turn it off.

If we're with a legacy driver that doesn't support the modern
drmModeSetCursor by waiting for a vblank before returning, we're going
to get a tiny bit of tearing on the cursor plane. But between tearing
with a new cursor image and tearing with a blank cursor image, I'd
rather the former.

The only proper solution to this is an atomic ioctl that page flips
all planes, including the cursor plane, at vblank time and at the same
time.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2015-01-10 14:45:09 +13:00
Kenneth Graunke 09230a2d43 modesetting: Add vblank synchronization support when using Present.
modesetting hooked up vblank support for DRI2, but was missing support
for vblanks in Present.

This is mostly copy and pasted from Keith's code in the intel driver.

v2: Use ms_crtc_msc_to_kernel_msc in ms_present_queue_vblank to hook
    up the vblank_offset workaround for bogus MSC values (which the
    DRI2 code already did).

    Also simplify the ms_present_get_crtc function.  vblank.c already
    implements the functionality; we just need to convert types.

v3: Fix ms_flush_drm_events return code.  I'd copied code where 0 meant
    success into a function that returned a boolean, so the return code
    was always backwards.

    Also add DebugPresent calls in ms_present_vblank_{handler,abort}.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-12-25 13:39:19 -08:00
Kenneth Graunke 3b5be33fc5 modesetting: Include glamor.h from driver.h.
We basically want it throughout the driver.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-12-25 13:39:17 -08:00
Keith Packard 0d37c7e4b5 modesetting: Detect whether damage tracking is needed
Call drmModeDirtyFB and check the return value to detect whether the
driver support for damage tracking is present, only initialize it in
that case.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
2014-12-25 12:59:56 -08:00
Keith Packard 7804305673 modesetting: Fix damage tracking auto-disable code
dispatch_dirty_region was only returning -EINVAL error codes,
otherwise it would return 0. The kernel returns -ENOSYS when the
driver doesn't support damage tracking, so dispatch_dirty would never
see the error and never disable damage tracking.

Pass all errors back from dispatch_dirty_region and let dispatch_dirty
deal with them.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
2014-12-25 12:59:46 -08:00
Keith Packard 2c7111235c modesetting: Enable Xv when using glamor
This just calls the existing function to create the relevant Xv
adaptor and hook it up.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-12-19 18:09:15 -08:00
Kenneth Graunke 7b784df51b modesetting: Use GBM for buffer allocations if Glamor supports it.
For performance, Glamor wants to render to tiled buffers, not linear
ones.  Using GBM allows us to pick the 3D driver's preferred tiling
modes.

v2: Declare drmmode->gbm as void * if !GLAMOR_HAS_GBM.
v3: Just use a forward declaration of struct gbm_device.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-12-11 11:26:19 -08:00
Kenneth Graunke 980535757d modesetting: Create a drmmode_bo wrapper; use it for front_bo.
This code is going to be extended to support GBM BOs soon.  This small
abstraction removes a lot of direct dumb_bo access, so we can add that
support in one place, rather than putting conditionals at every
pitch/handle/etc access.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-12-11 11:26:19 -08:00
Kenneth Graunke af4f94b08e modesetting: Create helper for glamor_egl_create_textured_screen call.
This will need to change when we add GBM support; by pulling it into a
helper function, we should only have to edit one place.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-12-11 11:26:19 -08:00
Kenneth Graunke 35e9924484 modesetting: Stop using glamor_egl_create_textured_screen_ext().
The _ext variant takes an additional pointer argument, which it now
ignores, thanks to Keith's recent patches.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-12-11 11:26:19 -08:00
Daniel Martin 0d63fa5850 modesetting: Move Bool glamor into drmmode struct
Move the boolean glamor from struct modesetting into struct drmmode for
later re-use in drmmode_display.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-12-08 15:49:33 -08:00
Peter Hutterer 732fd7e571 Drop trailing whitespaces
sed -i "s/[ ]\+$//g" **/*.(c|h)

happy reviewing...
git diff -w is an empty diff.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-11-12 10:25:00 +10:00
Eric Anholt cac4b064f9 modesetting: Add support for DRI2 with glamor.
This is derived from the intel driver DRI2 code, with swapchain and
pageflipping dropped, functions renamed, and vblank event management
shared code moved to a vblank.c for reuse by Present.

This allows AIGLX to load, which means that you get appropriate
visuals exposed in GL, along with many extensions under
direct-rendering that require presence in GLX (which aren't supported
in glxdriswrast.c).

v2: Drop unused header includes in pageflip.c, wrap in #ifdef GLAMOR.
    Drop triple-buffering, which was totally broken in practice (I'll
    try to fix this later).  Fix up some style nits.  Document the
    general flow of pageflipping and why, rename the DRI2 frame event
    type enums to reflect what they're for, and handle them in a
    single switch statement so you can understand the state machine
    more easily.
v3: Drop pageflipping entirely -- it's unstable on my Intel laptop
    (not that the normal 2D driver is stable with pageflipping for
    me), and I won't get it fixed before the merge window.  It now
    passes all of the OML_sync_control tests from Jamey and Theo
    (except for occasional warns in timing -fullscreen -divisor 2).
v4: Fix doxygen at the top of vblank.c

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-10-27 13:16:43 -07:00
Eric Anholt aaf5e2d643 modesetting: Add support for rendering using glamor.
By default modesetting now tries to enable X acceleration using
glamor, but falls back to normal shadowfb if GL fails to initialize.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-10-09 09:48:51 +02:00
Eric Anholt 6d41bdb23c modesetting: Deduplicate some scrn setup.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-10-09 09:48:48 +02:00
Eric Anholt 3119acdab9 modesetting: Run x-indent-all.sh.
As I was editing code, the top-level .dir-locals.el was making my new
stuff conflict with the existing style.  Make it consistently use the
xorg style, instead.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-10-09 09:48:42 +02:00
Eric Anholt b84d25fd53 modesetting: Drop remaining old-xserver compatibility.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-09-16 16:28:50 -07:00
Eric Anholt 7b0965a826 modesetting: Drop use of compat-api.h
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2014-09-16 16:28:50 -07:00