Commit Graph

223 Commits

Author SHA1 Message Date
Gerd Hoffmann
16065fcdd1 drm/virtio: do NOT reuse resource ids
Bisected guest kernel changes crashing qemu.  Landed at
"6c1cd97bda drm/virtio: fix resource id handling".  Looked again, and
noticed we where not only leaking *some* ids, but *all* ids.  The old
code never ever called virtio_gpu_resource_id_put().

So, commit 6c1cd97bda effectively makes the linux kernel starting
re-using IDs after releasing them, and apparently virglrenderer can't
deal with that.  Oops.

This patch puts a temporary stopgap into place for the 5.0 release.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190208140409.15280-1-kraxel@redhat.com
2019-02-11 14:44:10 +10:00
Daniel Vetter
fcd70cd36b drm: Split out drm_probe_helper.h
Having the probe helper stuff (which pretty much everyone needs) in
the drm_crtc_helper.h file (which atomic drivers should never need) is
confusing. Split them out.

To make sure I actually achieved the goal here I went through all
drivers. And indeed, all atomic drivers are now free of
drm_crtc_helper.h includes.

v2: Make it compile. There was so much compile fail on arm drivers
that I figured I'll better not include any of the acks on v1.

v3: Massive rebase because i915 has lost a lot of drmP.h includes, but
not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h
there was still one, which this patch largely removes. Which means
rolling out lots more includes all over.

This will also conflict with ongoing drmP.h cleanup by others I
expect.

v3: Rebase on top of atomic bochs.

v4: Review from Laurent for bridge/rcar/omap/shmob/core bits:
- (re)move some of the added includes, use the better include files in
  other places (all suggested from Laurent adopted unchanged).
- sort alphabetically

v5: Actually try to sort them, and while at it, sort all the ones I
touch.

v6: Rebase onto i915 changes.

v7: Rebase once more.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: CK Hu <ck.hu@mediatek.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: virtualization@lists.linux-foundation.org
Cc: etnaviv@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: spice-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-tegra@vger.kernel.org
Cc: xen-devel@lists.xen.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch
2019-01-24 13:20:42 +01:00
Ezequiel Garcia
d516e75c71 drm/virtio: Drop deprecated load/unload initialization
Move the code around so the driver is probed the bus
.probe and removed from the bus .remove callbacks.
This commit is just a cleanup and shouldn't affect
functionality.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190108145930.15080-1-ezequiel@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-01-09 09:38:49 +01:00
Gerd Hoffmann
cb66c6daa5 drm/virtio: drop virtio_gpu_fence_cleanup()
Just call drm_fence_put directly instead.
Also set vgfb->fence to NULL after dropping the reference.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181219122708.4586-4-kraxel@redhat.com
2019-01-08 12:00:01 +01:00
Gerd Hoffmann
6a01d277ac drm/virtio: fix pageflip flush
Sending the flush command only makes sense if we actually have
a framebuffer attached to the scanout (handle != 0).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181219122708.4586-3-kraxel@redhat.com
2019-01-08 12:00:00 +01:00
Gerd Hoffmann
3630c2a24f drm/virtio: log error responses
If we got an error response code from the host, print it to the log.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181219122708.4586-2-kraxel@redhat.com
2019-01-08 11:59:59 +01:00
Ezequiel Garcia
edde9fc58e drm/virtio: Add missing virtqueue reset
As per the VirtIO spec, the virtqueues must be reset during cleanup
(see "3.3.1 Driver Requirements: Device Cleanup").

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190102175507.4653-2-ezequiel@collabora.com
2019-01-08 11:45:28 +01:00
Ezequiel Garcia
29cd2e2dac drm/virtio: Remove incorrect kfree()
The virtio_gpu_output is a member of struct virtio_gpu_device
and is not a dynamically-allocated chunk, so it's wrong to kfree() it.
Removing it fixes a memory corruption BUG() that can be triggered
when the virtio-gpu driver is removed.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190102175507.4653-1-ezequiel@collabora.com
2019-01-08 11:45:19 +01:00
Gerd Hoffmann
48a77d66cb drm/virtio: switch to generic fbdev emulation
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181213134915.24722-1-kraxel@redhat.com
2018-12-14 09:40:27 +01:00
Maarten Lankhorst
65ffc51aba Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
Requested by Boris Brezillon for some vc4 fixes that are needed for future vc4 work.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2018-11-29 16:12:50 +01:00
Gerd Hoffmann
d7a86dffc2 drm/virtio: virtio_gpu_cmd_resource_create_3d: drop unused fence arg
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181128151021.29565-3-kraxel@redhat.com
2018-11-29 13:45:07 +01:00
Gerd Hoffmann
4d55fd66b4 drm/virtio: fence: pass plain pointer
Since commit "9fdd90c0f4 drm/virtio: add virtio_gpu_alloc_fence()"
fences are not allocated any more by virtio_gpu_fence_emit().  So there
is no need to pass down a reference to the fence pointer, a plain
pointer is enough now.

Convert virtio_gpu_fence_emit() and callers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181128151021.29565-2-kraxel@redhat.com
2018-11-29 13:45:07 +01:00
Dave Airlie
61647c77cb drm-misc-next for v4.21:
Core Changes:
 - Merge drm_info.c into drm_debugfs.c
 - Complete the fake drm_crtc_commit's hw_done/flip_done sooner.
 - Remove deprecated drm_obj_ref/unref functions. All drivers use get/put now.
 - Decrease stack use of drm_gem_prime_mmap.
 - Improve documentation for dumb callbacks.
 
 Driver Changes:
 - Add edid support to virtio.
 - Wait on implicit fence in meson and sun4i.
 - Add support for BGRX8888 to sun4i.
 - Preparation patches for sun4i driver to start supporting linear and tiled YUV formats.
 - Add support for HDMI 1.4 4k modes to meson, and support for VIC alternate timings.
 - Drop custom dumb_map in vkms.
 - Small fixes and cleanups to v3d.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAlv+YOEACgkQ/lWMcqZw
 E8OJvw//fc+j9sJLScvrahLDNZVMh4pTvQCOySmxIPVAhjLZIkRjdvR9Ou51tbL+
 qSm3tDexHEPniR8xmuTYjPZtJP6o4e4NLqUzWYdZb0U+oK3QMuJKDD3uK+6BwM8P
 CyAa4VxV9F17oN+d0aFpoPTHheRVt3egyvREqLHoiAJYtp01cm+f/FFKZSe+o3p/
 QLi0tJ5unXg6AZFoomYbZirE/jp6t8m+cjRkYOafE57+2qpMEJ8RA5G0D1UxCgP2
 imGW6n4N7rmB1bNbtTvFEDGIffE+W9AkVQkJ2YXUfQldtmUKgLA9OG47DIdDb1Xa
 P7RWVjHJejhvu9URcFmQcrjoCtKURPcPTuLZEQHvae1sUxwwMUvtpKUM7TBGYo2I
 G/nQLkMLmK9yfJRyo2OHRHTClduU3X7FXzbJhbL3cUMx0beWjCQmRDjM9ywfSJR3
 lrJIlnQ3voCp0IZWj86RG0idpd3RIjE8Aaqz/m4bSmqMCqmlepnZzIpZcFB7gXbM
 k0xiK4LUFO1VbFsMoRaqrP1zXduY+nbLhfiDiIDs34v0ZVqNooJpLYilRI/lvmXt
 vzApnxgwRePW0vz67Lagqq+ZUXJXptirmGw7bnvfT90cOKlRLi5CDZTRwCOuUNPL
 9kUgXj8EoX9+7p9M14TrEx9tV0MZIwbP8nlS9Ty0Kx4s240mbYg=
 =JNy2
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-2018-11-28' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v4.21:

Core Changes:
- Merge drm_info.c into drm_debugfs.c
- Complete the fake drm_crtc_commit's hw_done/flip_done sooner.
- Remove deprecated drm_obj_ref/unref functions. All drivers use get/put now.
- Decrease stack use of drm_gem_prime_mmap.
- Improve documentation for dumb callbacks.

Driver Changes:
- Add edid support to virtio.
- Wait on implicit fence in meson and sun4i.
- Add support for BGRX8888 to sun4i.
- Preparation patches for sun4i driver to start supporting linear and tiled YUV formats.
- Add support for HDMI 1.4 4k modes to meson, and support for VIC alternate timings.
- Drop custom dumb_map in vkms.
- Small fixes and cleanups to v3d.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/151a3270-b1be-ed75-bd58-6b29d741f592@linux.intel.com
2018-11-29 10:28:49 +10:00
Dave Airlie
b239499f92 drm-misc-next for v4.21, part 2:
UAPI Changes:
 - Remove syncobj timeline support from drm.
 
 Cross-subsystem Changes:
 - Document canvas provider node in the DT bindings.
 - Improve documentation for TPO TPG110 DT bindings.
 
 Core Changes:
 - Use explicit state in drm atomic functions.
 - Add panel quirk for new GPD Win2 firmware.
 - Add DRM_FORMAT_XYUV8888.
 - Set the default import/export function in prime to drm_gem_prime_import/export.
 - Add a separate drm_gem_object_funcs, to stop relying on dev->driver->*gem* functions.
 - Make sure that tinydrm sets the virtual address also on imported buffers.
 
 Driver Changes:
 - Support active-low data enable signal in sun4i.
 - Fix scaling in vc4.
 - Use canvas provider node in meson.
 - Remove unused variables in sti and qxl and cirrus.
 - Add overlay plane support and primary plane scaling to meson.
 - i2c fixes in drm/bridge/sii902x
 - Fix mailbox read size in rockchip.
 - Spelling fix in panel/s6d16d0.
 - Remove unnecessary null check from qxl_bo_unref.
 - Remove unused arguments from qxl_bo_pin.
 - Fix qxl cursor pinning.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAlv1NiQACgkQ/lWMcqZw
 E8OZ3g/+M3UMxqL5NEscn7tQgD76uWFr7hr76qOTbwqntnGor1h+uqIE4ITF5yBv
 svsNNorzOtz6rDz8HWsi9aDmSYv/MTLURKGHWK3bpeSlY83uLS0e13EhdID9l5iN
 EwcqiA5t8PBR2xTU5+H2gCwb8p9ArmF4azyT12x6s7e33UmNpBlb/bmj03gw8HNA
 37cDVvp0SrPh+JEAqxkL2qBl3412ENYabJr/dioc+SakBMbCDYT2EMFqsV/TLYq1
 ZUQRxTUol2OTWcJTBv2LS86YfYRpK0vVVl7MtFyoFERbOY+o45VyKlA35qAbGcne
 Vem+06HEm6BPfPlCGu3DnsLkN0gnotWyPifm6tE8n3k0sPG0fGgb+qODSyl/8YKb
 k8KQ/ccqEzhqfNnS3X8fSeuyoW6aA7DaEmsVeXlnGNKBzWqGeLxC78uCr7jA+Zgc
 CqUwCgTgXUkIQaZz8RYwlWXzZZyaPRsodsVjRL+7gFl1JTFGvi9QcKTLVo2jq4a0
 V3pNpnuz/+NzePtUc0OE0zBnl3PpFQa1jY8NtRCI99BQ+S/OCGvZMfEkNslb+Z2C
 8p2ka70aVpnzS367Oqw0xpjYxSdbyoyLjDig7YYfMi2IqoNPNeGRF0tMNE+ht84k
 BU/RC7yHa9+EeUa8cM5FMigr/GuIs2lmHQOG6JBHasfSUSRTLio=
 =elpS
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-next-2018-11-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v4.21, part 2:

UAPI Changes:
- Remove syncobj timeline support from drm.

Cross-subsystem Changes:
- Document canvas provider node in the DT bindings.
- Improve documentation for TPO TPG110 DT bindings.

Core Changes:
- Use explicit state in drm atomic functions.
- Add panel quirk for new GPD Win2 firmware.
- Add DRM_FORMAT_XYUV8888.
- Set the default import/export function in prime to drm_gem_prime_import/export.
- Add a separate drm_gem_object_funcs, to stop relying on dev->driver->*gem* functions.
- Make sure that tinydrm sets the virtual address also on imported buffers.

Driver Changes:
- Support active-low data enable signal in sun4i.
- Fix scaling in vc4.
- Use canvas provider node in meson.
- Remove unused variables in sti and qxl and cirrus.
- Add overlay plane support and primary plane scaling to meson.
- i2c fixes in drm/bridge/sii902x
- Fix mailbox read size in rockchip.
- Spelling fix in panel/s6d16d0.
- Remove unnecessary null check from qxl_bo_unref.
- Remove unused arguments from qxl_bo_pin.
- Fix qxl cursor pinning.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/9c0409e3-a85f-d2af-b4eb-baf1eb8bbae4@linux.intel.com
2018-11-22 12:54:38 +10:00
Gerd Hoffmann
b4b01b4995 drm/virtio: add edid support
linux guest driver implementation of the VIRTIO_GPU_F_EDID feature.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20181030063206.19528-3-kraxel@redhat.com
2018-11-21 12:06:59 +01:00
Dave Airlie
9235dd441a Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
New features for 4.21:
amdgpu:
- Support for SDMA paging queue on vega
- Put compute EOP buffers into vram for better performance
- Share more code with amdkfd
- Support for scanout with DCC on gfx9
- Initial kerneldoc for DC
- Updated SMU firmware support for gfx8 chips
- Rework CSA handling for eventual support for preemption
- XGMI PSP support
- Clean up RLC handling
- Enable GPU reset by default on VI, SOC15 dGPUs
- Ring and IB test cleanups

amdkfd:
- Share more code with amdgpu

ttm:
- Move global init out of the drivers

scheduler:
- Track if schedulers are ready for work
- Timeout/fault handling changes to facilitate GPU recovery

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181114165113.3751-1-alexander.deucher@amd.com
2018-11-19 11:07:52 +10:00
Colin Ian King
040b595a91 drm/virtio: fix memory leak of vfpriv on error return path
The allocation for vfpriv is being leaked on an error return path,
fix this by kfree'ing it before returning.

Detected by CoverityScan, CID#1475380 ("Resource Leak")

Fixes: 6a37c49a94 ("drm/virtio: Handle context ID allocation errors")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181107203122.6861-1-colin.king@canonical.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 14:21:03 +01:00
Gustavo Padovan
6862965261 drm/virtio: bump driver version after explicit synchronization addition
To reflect the (backward compatible) changes in the uabi we are bumping
the driver's version.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-5-robert.foss@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 14:21:02 +01:00
Robert Foss
2cd7b6f08b drm/virtio: add in/out fence support for explicit synchronization
When the execbuf call receives an in-fence it will get the dma_fence
related to that fence fd and wait on it before submitting the draw call.

On the out-fence side we get fence returned by the submitted draw call
and attach it to a sync_file and send the sync_file fd to userspace. On
error -1 is returned to userspace.

VIRTGPU_EXECBUF_FENCE_FD_IN & VIRTGPU_EXECBUF_FENCE_FD_OUT
are supported at the simultaneously and can be flagged
for simultaneously.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-4-robert.foss@collabora.com
Suggested-by: Rob Herring <robh@kernel.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 14:21:02 +01:00
Robert Foss
a56f9c868c drm/virtio: add uapi for in and out explicit fences
Add a new field called fence_fd that will be used by userspace to send
in-fences to the kernel and receive out-fences created by the kernel.

This uapi enables virtio to take advantage of explicit synchronization of
dma-bufs.

There are two new flags:

* VIRTGPU_EXECBUF_FENCE_FD_IN to be used when passing an in-fence fd.
* VIRTGPU_EXECBUF_FENCE_FD_OUT to be used when requesting an out-fence fd

The execbuffer IOCTL is now read-write to allow the userspace to read the
out-fence.

On error -1 should be returned in the fence_fd field.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-3-robert.foss@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 14:21:01 +01:00
Robert Foss
9fdd90c0f4 drm/virtio: add virtio_gpu_alloc_fence()
Refactor fence creation, add fences to relevant GPU
operations and add cursor helper functions.

This removes the potential for allocation failures from the
cmd_submit and atomic_commit paths.
Now a fence will be allocated first and only after that
will we proceed with the rest of the execution.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181112165157.32765-2-robert.foss@collabora.com
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 14:21:01 +01:00
Matthew Wilcox
2ae7f165c0 drm/virtio: Use IDAs more efficiently
0-based IDAs are more efficient than any other base.  Convert the
1-based IDAs to be 0-based.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20181030165352.13065-2-willy@infradead.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 12:50:34 +01:00
Matthew Wilcox
556c62e85f drm/virtio: Handle error from virtio_gpu_resource_id_get
ida_alloc() can return -ENOMEM in the highly unlikely case we run out
of memory.  The current code creates an object with an invalid ID.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20181030165352.13065-1-willy@infradead.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-14 12:50:34 +01:00
Christian König
a64f784bb1 drm/ttm: initialize globals during device init (v2)
Make sure that the global BO state is always correctly initialized.

This allows removing all the device code to initialize it.

v2: fix up vbox (Alex)

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05 14:21:21 -05:00
Christian König
27eb1fa913 drm/ttm: use a static ttm_mem_global instance
As the name says we only need one global instance of ttm_mem_global.

Drop all the driver initialization and just use a single exported
instance which is initialized during BO global initialization.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05 14:21:18 -05:00
Thomas Zimmermann
e55a5c9b5f drm/ttm: Rename ttm_bo_global_{init,release}() to ttm_bo_global_ref_{,}()
The functions ttm_bo_global_init() and ttm_bo_global_release() do not
receive an argument of type struct ttm_bo_global. Both take a struct
drm_global_reference that contains points to a struct ttm_bo_global_ref.
Renaming them reflects this.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05 14:20:52 -05:00
Sabyasachi Gupta
7fea1e0f38 gpu/drm/virtio/virtgpu_vq.c: Use kmem_cache_zalloc
Replaced kmem_cache_alloc + memset with kmem_cache_zalloc

Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/5bc9ff7e.1c69fb81.105c2.1fef@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-30 07:19:58 +01:00
Matthew Wilcox
6a37c49a94 drm/virtio: Handle context ID allocation errors
It is possible to run out of memory while allocating IDs.  The current
code would create a context with an invalid ID; change it to return
-ENOMEM to userspace.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20180926160031.15721-3-willy@infradead.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-29 22:50:55 +01:00
Matthew Wilcox
1938d1ae32 drm/virtio: Replace IDRs with IDAs
These IDRs were only being used to allocate unique numbers, not to look
up pointers, so they can use the more space-efficient IDA instead.

Signed-off-by: Matthew Wilcox <willy@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20180926160031.15721-2-willy@infradead.org

[ kraxel: resolve conflict ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
6c1cd97bda drm/virtio: fix resource id handling
Move virtio_gpu_resource_id_{get,put} to virtgpu_object.c and make them
static.  Allocate and free the id on creation and destroy, drop all
other calls.  That way objects have a valid handle for the whole
lifetime of the object.

Also fixes ids leaking.  Worst offender are dumb buffers, and I think
some error paths too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-7-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
724cfdfd66 drm/virtio: drop resource_id argument.
We pass the obj anyway, so obj->hw_res_handle can be used instead
in virtio_gpu_object_attach() and virtio_gpu_cmd_create_resource().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-6-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
70a0d6a377 drm/virtio: use virtio_gpu_object->hw_res_handle in virtio_gpu_resource_create_ioctl()
Drop pointless res_id variable in virtio_gpu_resource_create_ioctl(),
just use the hw_res_handle field in virtio_gpu_object directly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-5-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
c40336ba5e drm/virtio: use virtio_gpu_object->hw_res_handle in virtio_gpu_mode_dumb_create()
Drop pointless resid variable in virtio_gpu_mode_dumb_create(), just use
the hw_res_handle field in virtio_gpu_object directly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-4-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
ae0dc3cc38 drm/virtio: use virtio_gpu_object->hw_res_handle in virtio_gpufb_create()
Drop pointless resid variable in virtio_gpufb_create(), just use
the hw_res_handle field in virtio_gpu_object directly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-3-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Gerd Hoffmann
23c897d72c drm/virtio: track created object state
Track whenever the virtio_gpu_object is already created (i.e. host knows
about it) in a new variable.  Add checks to virtio_gpu_object_attach()
to do nothing on objects not created yet.

Make virtio_gpu_ttm_bo_destroy() use the new variable too, instead of
expecting hw_res_handle indicating the object state.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-2-kraxel@redhat.com
2018-10-29 22:50:55 +01:00
Emil Velikov
4bdbd5f0ee drm/virtio: document drm_dev_set_unique workaround
A while back we removed it, yet that lead to regressions. At some later
point, I've attempted to remove it again without fully grasping the
unique (pun intended) situation that virtio is in.

Add a bulky comment to document why the call should stay as-is, for the
next person who's around.

As a Tl;Dr: virtio sits on top of struct virtio_device, which confuses
dev_is_pci(), wrong info gets sent to userspace and X doesn't start.
Driver needs to explicitly call drm_dev_set_unique() to keep it working.

v2: Fix handful of typos (Laszlo)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181024144252.16518-1-emil.l.velikov@gmail.com
2018-10-25 13:25:58 +01:00
Ezequiel Garcia
a03fb71716 virtio: Support prime objects vmap/vunmap
Implement vmap/vunmap so we can export dmabufs to
other drivers, such as video4linux.

Tested with a virtio-gpu / vivid (virtual capture driver)
pipeline, where the vivid driver imports the dmabufs exported
by virtio-gpu.

Note that dma_buf_vmap() does its own vmap counting, so
it's not needed to take care of it in the driver.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180925161606.17980-4-ezequiel@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-26 08:05:07 +02:00
Ezequiel Garcia
a20c4173c4 virtio: Rework virtio_gpu_object_kmap()
Currently, virtio_gpu_object_kmap() is only called by
virtio_gpufb_create(), when a DRM framebuffer is created.

Thus, instead of returning the vmap'ed address, emit a warning
if virtio_gpu_object_kmap is called on an already mapped
object. With this change, kmap/kunmap calls are now balanced.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180925161606.17980-3-ezequiel@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-26 08:05:06 +02:00
Ezequiel Garcia
02c87cabd6 virtio: Add virtio_gpu_object_kunmap()
Implement a virtio_gpu_object_kunmap() to unmap the kernel
mapping, and use it in the TTM object destroy path.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180925161606.17980-2-ezequiel@collabora.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-26 08:05:05 +02:00
Gerd Hoffmann
42fd9e6c29 drm/virtio: fix DRM_FORMAT_* handling
Use DRM_FORMAT_HOST_XRGB8888, so we are using the correct format code
on bigendian machines.  Also set the quirk_addfb_prefer_host_byte_order
mode_config bit so drm_mode_addfb() asks for the correct format code.

Both DRM_FORMAT_* and VIRTIO_GPU_FORMAT_* are defined to be little
endian, so using a different mapping on bigendian machines is wrong.
It's there because of broken drm_mode_addfb() behavior.  So with
drm_mode_addfb() being fixed we can fix this too.

While wading through the code I've noticed we have a little issue in
virtio:  We attach a format to the bo when it is created
(DRM_IOCTL_MODE_CREATE_DUMB), not when we map it as framebuffer
(DRM_IOCTL_MODE_ADDFB).  Easy way out:  Support a single format only.
Pick DRM_FORMAT_HOST_XRGB8888, it is the only one actually used in
practice.  Drop unused mappings in virtio_gpu_translate_format().

With this patch applied both ADDFB and ADDFB2 ioctls work correctly in
the virtio-gpu.ko driver on big endian machines.  Without the patch only
ADDFB (which still seems to be used by the majority of userspace) works
correctly.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180921134704.12826-6-kraxel@redhat.com
2018-09-25 14:49:49 +02:00
Gerd Hoffmann
af334c5d41 drm/virtio: pass virtio_gpu_object to virtio_gpu_cmd_transfer_to_host_{2d, 3d}
Pass virtio_gpu_object down to virtio_gpu_cmd_transfer_to_host_2d and
virtio_gpu_cmd_transfer_to_host_3d functions, instead of passing just
the virtio resource handle.

This is needed to lookup the scatter list of the object, for dma sync.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiandi An <jiandi.an@amd.com>
Tested-by: Jiandi An <jiandi.an@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180920062924.6514-1-kraxel@redhat.com
2018-09-25 14:49:49 +02:00
Jiandi An
8f44ca2233 drm/virtio: add dma sync for dma mapped virtio gpu framebuffer pages
With virtio gpu ttm-pages being dma mapped, dma sync is needed when
swiotlb is used as bounce buffers, before TRANSFER_TO_HOST_2D/3D
commands are sent.

Signed-off-by: Jiandi An <jiandi.an@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180919070931.91168-1-jiandi.an@amd.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-19 13:33:06 +02:00
YueHaibing
ea4584c2f2 drm/virtio: Remove set but not used variable 'bo'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/virtio/virtgpu_display.c: In function 'virtio_gpu_framebuffer_init':
drivers/gpu/drm/virtio/virtgpu_display.c:78:28: warning:
 variable 'bo' set but not used [-Wunused-but-set-variable]
  struct virtio_gpu_object *bo;
                            ^

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1536285837-150460-1-git-send-email-yuehaibing@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-10 07:10:36 +02:00
Gerd Hoffmann
a3b815f09b drm/virtio: add iommu support.
Use the dma mapping api and properly add iommu mappings for
objects, unless virtio is in iommu quirk mode.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180829122026.27012-3-kraxel@redhat.com
2018-09-05 08:26:26 +02:00
Gerd Hoffmann
b3f13ec958 drm/virtio: add virtio_gpu_object_detach() function
The new function balances virtio_gpu_object_attach().

Also make virtio_gpu_cmd_resource_inval_backing() static and switch
call sites to the new virtio_gpu_object_attach() function.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180829122026.27012-2-kraxel@redhat.com
2018-09-05 08:26:25 +02:00
Gerd Hoffmann
6c19787e10 drm/virtio: track virtual output state
Track whenever an virtual output (crtc) is enabled or disabled.

On atomic updates check for both framebuffer being present and crtc
being enabled to figure whenever the output is active or not.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180813152855.12863-1-kraxel@redhat.com
2018-09-05 08:26:24 +02:00
Michał Mirosław
770af5859d drm/virtio: use simpler remove_conflicting_pci_framebuffers()
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/25f89daf6217da98a52d41c4ad62a78272bb0cf6.1535810304.git.mirq-linux@rere.qmqm.pl
2018-09-03 18:17:42 +02:00
Dan Carpenter
09c4b49457 drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()
This doesn't affect runtime because in the current code "idx" is always
valid.

First, we read from "vgdev->capsets[idx].max_size" before checking
whether "idx" is within bounds.  And secondly the bounds check is off by
one so we could end up reading one element beyond the end of the
vgdev->capsets[] array.

Fixes: 62fb7a5e10 ("virtio-gpu: add 3d/virgl support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20180704094250.m7sgvvzg3dhcvv3h@kili.mountain
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-08-30 09:41:03 +02:00
Thomas Zimmermann
0e7a3d4b66 drm/virtio: Replace ttm_bo_unref with ttm_bo_put
The function ttm_bo_put releases a reference to a TTM buffer object. The
function's name is more aligned to the Linux kernel convention of naming
ref-counting function _get and _put.

A call to ttm_bo_unref takes the address of the TTM BO object's pointer and
clears the pointer's value to NULL. This is not necessary in most cases and
sometimes even worked around by the calling code. A call to ttm_bo_put only
releases the reference without clearing the pointer.

The current behaviour of cleaning the pointer is kept in the calling code,
but should be removed if not required in a later patch.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20180731062127.10131-3-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-08-30 09:41:02 +02:00
Thomas Zimmermann
94f4a12707 drm/virtio: Replace ttm_bo_reference with ttm_bo_get
The function ttm_bo_get acquires a reference on a TTM buffer object. The
function's name is more aligned to the Linux kernel convention of naming
ref-counting function _get and _put.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20180731062127.10131-2-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-08-30 09:41:02 +02:00