forked from Minki/linux
5e4965667a
8 Commits
| Author | SHA1 | Message | Date | |
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Dave Airlie
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f4366e44ef |
drm-misc-next for 4.19:
Cross-subsystem Changes: - fix compile breakage on ION due to the dma-buf cleanups (Christian König) -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJbK4N3AAoJEEN0HIUfOBk00S0P/ikY6Xvkbjs4m6BkpFpuAguy n5biz7PgEc8xFsp7hs3rcax0U8cd/spJEOdvxhur18+RiEXwlT+9l2cn+7l++DjR uQ+bNHLlKSzX4weoj+MT/9U3gQmaOeVw8h2A8y0Un2fnM9Y+FWGR2PR75+Zl0Tl9 Zfbj2Zzx84lg0YEoX+HUBcgBEZ3jAPED3Wax7oEgNo0gAXHSTPQxSeHPgr6U3jxn NwcawNd5huZhMJ8KyiieTs7DXrlPjHl/wU7ogjQLOVQN0xh26GlZMX5AAkJTIu21 5trTNhV/EdKunbBJzt+RFQDslyFFwfSZM1DAuICbjrY10Hmuzkki7+MDxBprJMRj N9fkJqQUrot2XDisauCvCJ2QUKOVhTqwODx6iU7uvJa/kbCgTY/gY/yZHJ46DCTQ IVMUmoqxqA6eHrT7dyL2pvH5q6is5XjsrP8ehJ9m4zlcZDfRn7JwExY5kLKIEWtW vXBGatF4heZZznNuoo02TRLmiSZnfsYLdr1b1vpnxGvWiDL4FdQr7CIntRiw/qhy aj7dP+XaQoPAewkiK77FGLb44zgHtGvWQC/6L6+d20+X4/EoruMOesvoH8lCsL2c Ov3D9kORyjHQTNwW4BT6DdJRnnwdMuwlppT+z4jq51WoDIfwEn8lFZe1goRvn8o0 GvR2rUgq259pFn9tnsEu =qsFF -----END PGP SIGNATURE----- Merge tag 'drm-misc-next-2018-06-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.19: UAPI Changes: - Add writeback connector (Brian Starkey/Liviu Dudau) - Add "content type" property to HDMI connectors (Stanislav Lisovskiy) Cross-subsystem Changes: - some devicetree Docs update - fix compile breakage on ION due to the dma-buf cleanups (Christian König) Core Changes: - Reject over-sized allocation requests early (Chris Wilson) - gem-fb-helper: Always do implicit sync (Daniel Vetter) - dma-buf cleanups (Christian König) Driver Changes: - Fixes for the otm8009a panel driver (Philippe Cornu) - Add Innolux TV123WAM panel driver support (Sandeep Panda) - Move GEM BO to drm_framebuffer in few drivers (Daniel Stone) - i915 pinning improvements (Chris Wilson) - Stop consulting plane->fb/crtc in a few drivers (Ville Syrjälä) Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180621105428.GA20795@juma |
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Linus Torvalds
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135c5504a6 |
drm for v4.18-rc1
-----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJbFzauAAoJEAx081l5xIa+jzwP/AwfTreH3XBmlLeMO8kwkAMW AiH1u3KHrlitN1U85x90dC8hVuuV2Kv9pEXQo1me/TAL/QCb9VZYCSf2dHHkkMwD 1UdwxAQW7soBbTRo9k0zuVJpRGSYIiYfqDh3L6KmTC3UF0tUJm53VOWCLG/DNrtn XhEnGnlCUNbABZMMpavEvlwxPtvaYFlp6M+MmwRPIx32SrPJ3vSaBzxwWxOaFmjU xiRdK+GpAbCV8yGeCCSkDgEe/TdWGUhZxoC9dLb0H9ex7ip8uZ0W4D+VTHPFrhQX 6nCpqUbp7BQTsbVSd1pAVsAv45scmSgWbKcqfC0NKSVcsHcJZBR0tQOF9OvnGZcf o1Hv/beTqJ++IcG2rEIwyJTGxAGfZ0YSb0evTC9VcszaYo+b3+G283bdztIjzDeS 0QCTeLHYbZRHPITWVULNpMWy3TkJv32IdFhQfYSnD8/OGQIxLNhh4FFOtHnOmxSF N8dnzOLKXhXMo/NgOL+UMNnbgLqIyOtEXCPDLuOQJNv/SOp8662m/A0yRjQNR6M2 gsPmR7dxQIwwJMyqrkLDOF411ABZohulquYgwLgG938MRPmTpPWOR72PtpGF4hAW HLg+3HHBd1N/A1mlJUMAbUn2eMUACZBUIycE9u+U/geRgve/OQnzJH/FKGP2EJ4R pf6CruEva+6GRR5GVzuM =twst -----END PGP SIGNATURE----- Merge tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "This starts to support NVIDIA volta hardware with nouveau, and adds amdgpu support for the GPU in the Kabylake-G (the intel + radeon single package chip), along with some initial Intel icelake enabling. Summary: New Drivers: - v3d - driver for broadcom V3D V3.x+ hardware - xen-front - XEN PV display frontend core: - handle zpos normalization in the core - stop looking at legacy pointers in atomic paths - improved scheduler documentation - improved aspect ratio validation - aspect ratio support for 64:27 and 256:135 - drop unused control node code. i915: - Icelake (ICL) enabling - GuC/HuC refactoring - PSR/PSR2 enabling and fixes - DPLL management refactoring - DP MST fixes - NV12 enabling - HDCP improvements - GEM/Execlist/reset improvements - GVT improvements - stolen memory first 4k fix amdgpu: - Vega 20 support - VEGAM support (Kabylake-G) - preOS scanout buffer reservation - power management gfxoff support for raven - SR-IOV fixes - Vega10 power profiles and clock voltage control - scatter/gather display support on CZ/ST amdkfd: - GFX9 dGPU support - userptr memory mapping nouveau: - major refactoring for Volta GV100 support tda998x: - HDMI i2c CEC support etnaviv: - removed unused logging code - license text cleanups - MMU handling improvements - timeout fence fix for 50 days uptime tegra: - IOMMU support in gr2d/gr3d drivers - zpos support vc4: - syncobj support - CTM, plane alpha and async cursor support analogix_dp: - HPD and aux chan fixes sun4i: - MIPI DSI support tilcdc: - clock divider fixes for OMAP-l138 LCDK board rcar-du: - R8A77965 support - dma-buf fences fixes - hardware indexed crtc/du group handling - generic zplane property support atmel-hclcdc: - generic zplane property support mediatek: - use generic video mode function exynos: - S5PV210 FIMD variant support - IPP v2 framework - more HW overlays support" * tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm: (1286 commits) drm/amdgpu: fix 32-bit build warning drm/exynos: fimc: signedness bug in fimc_setup_clocks() drm/exynos: scaler: fix static checker warning drm/amdgpu: Use dev_info() to report amdkfd is not supported for this ASIC drm/amd/display: Remove use of division operator for long longs drm/amdgpu: Update GFX info structure to match what vega20 used drm/amdgpu/pp: remove duplicate assignment drm/sched: add rcu_barrier after entity fini drm/amdgpu: move VM BOs on LRU again drm/amdgpu: consistenly use VM moved flag drm/amdgpu: kmap PDs/PTs in amdgpu_vm_update_directories drm/amdgpu: further optimize amdgpu_vm_handle_moved drm/amdgpu: cleanup amdgpu_vm_validate_pt_bos v2 drm/amdgpu: rework VM state machine lock handling v2 drm/amdgpu: Add runtime VCN PG support drm/amdgpu: Enable VCN static PG by default on RV drm/amdgpu: Add VCN static PG support on RV drm/amdgpu: Enable VCN CG by default on RV drm/amdgpu: Add static CG control for VCN on RV drm/exynos: Fix default value for zpos plane property ... |
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Colin Ian King
|
aefff49156 |
drm/xen-front: fix spelling mistake: "conector" -> "connector"
Trivial fix to spelling mistake in DRM_INFO message. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180515085433.8245-1-colin.king@canonical.com |
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Dan Carpenter
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f45140df31 |
drm/xen-front: Fix loop timeout
If the loop times out then we want to exit with "to" set to zero, but in
the current code it's set to -1.
Fixes:
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Dan Carpenter
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18f20bc530 |
drm/xen-front: fix xen_drm_front_shbuf_alloc() error handling
The xen_drm_front_shbuf_alloc() function was returning a mix of error
pointers and NULL and the the caller wasn't checking correctly. I've
changed it to always return error pointer consistently.
Fixes:
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Dan Carpenter
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e30ca4bcf0 |
drm/xen-front: checking for NULL instead of IS_ERR
drm_dev_alloc() returns error pointers, it never returns NULL.
Fixes:
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Oleksandr Andrushchenko
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4394e96423 |
drm/xen-front: Remove CMA support
It turns out this was only needed to paper over a bug in the CMA
helpers, which was addressed in
commit
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Oleksandr Andrushchenko
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c575b7eeb8 |
drm/xen-front: Add support for Xen PV display frontend
Add support for Xen para-virtualized frontend display driver.
Accompanying backend [1] is implemented as a user-space application
and its helper library [2], capable of running as a Weston client
or DRM master.
Configuration of both backend and frontend is done via
Xen guest domain configuration options [3].
Driver limitations:
1. Only primary plane without additional properties is supported.
2. Only one video mode supported which resolution is configured
via XenStore.
3. All CRTCs operate at fixed frequency of 60Hz.
1. Implement Xen bus state machine for the frontend driver according to
the state diagram and recovery flow from display para-virtualized
protocol: xen/interface/io/displif.h.
2. Read configuration values from Xen store according
to xen/interface/io/displif.h protocol:
- read connector(s) configuration
- read buffer allocation mode (backend/frontend)
3. Handle Xen event channels:
- create for all configured connectors and publish
corresponding ring references and event channels in Xen store,
so backend can connect
- implement event channels interrupt handlers
- create and destroy event channels with respect to Xen bus state
4. Implement shared buffer handling according to the
para-virtualized display device protocol at xen/interface/io/displif.h:
- handle page directories according to displif protocol:
- allocate and share page directories
- grant references to the required set of pages for the
page directory
- allocate xen balllooned pages via Xen balloon driver
with alloc_xenballooned_pages/free_xenballooned_pages
- grant references to the required set of pages for the
shared buffer itself
- implement pages map/unmap for the buffers allocated by the
backend (gnttab_map_refs/gnttab_unmap_refs)
5. Implement kernel modesetiing/connector handling using
DRM simple KMS helper pipeline:
- implement KMS part of the driver with the help of DRM
simple pipepline helper which is possible due to the fact
that the para-virtualized driver only supports a single
(primary) plane:
- initialize connectors according to XenStore configuration
- handle frame done events from the backend
- create and destroy frame buffers and propagate those
to the backend
- propagate set/reset mode configuration to the backend on display
enable/disable callbacks
- send page flip request to the backend and implement logic for
reporting backend IO errors on prepare fb callback
- implement virtual connector handling:
- support only pixel formats suitable for single plane modes
- make sure the connector is always connected
- support a single video mode as per para-virtualized driver
configuration
6. Implement GEM handling depending on driver mode of operation:
depending on the requirements for the para-virtualized environment,
namely requirements dictated by the accompanying DRM/(v)GPU drivers
running in both host and guest environments, number of operating
modes of para-virtualized display driver are supported:
- display buffers can be allocated by either
frontend driver or backend
- display buffers can be allocated to be contiguous
in memory or not
Note! Frontend driver itself has no dependency on contiguous memory for
its operation.
6.1. Buffers allocated by the frontend driver.
The below modes of operation are configured at compile-time via
frontend driver's kernel configuration.
6.1.1. Front driver configured to use GEM CMA helpers
This use-case is useful when used with accompanying DRM/vGPU driver
in guest domain which was designed to only work with contiguous
buffers, e.g. DRM driver based on GEM CMA helpers: such drivers can
only import contiguous PRIME buffers, thus requiring frontend driver
to provide such. In order to implement this mode of operation
para-virtualized frontend driver can be configured to use
GEM CMA helpers.
6.1.2. Front driver doesn't use GEM CMA
If accompanying drivers can cope with non-contiguous memory then, to
lower pressure on CMA subsystem of the kernel, driver can allocate
buffers from system memory.
Note! If used with accompanying DRM/(v)GPU drivers this mode of operation
may require IOMMU support on the platform, so accompanying DRM/vGPU
hardware can still reach display buffer memory while importing PRIME
buffers from the frontend driver.
6.2. Buffers allocated by the backend
This mode of operation is run-time configured via guest domain
configuration through XenStore entries.
For systems which do not provide IOMMU support, but having specific
requirements for display buffers it is possible to allocate such buffers
at backend side and share those with the frontend.
For example, if host domain is 1:1 mapped and has DRM/GPU hardware
expecting physically contiguous memory, this allows implementing
zero-copying use-cases.
Note, while using this scenario the following should be considered:
a) If guest domain dies then pages/grants received from the backend
cannot be claimed back
b) Misbehaving guest may send too many requests to the
backend exhausting its grant references and memory
(consider this from security POV).
Note! Configuration options 1.1 (contiguous display buffers) and 2
(backend allocated buffers) are not supported at the same time.
7. Handle communication with the backend:
- send requests and wait for the responses according
to the displif protocol
- serialize access to the communication channel
- time-out used for backend communication is set to 3000 ms
- manage display buffers shared with the backend
[1] https://github.com/xen-troops/displ_be
[2] https://github.com/xen-troops/libxenbe
[3] https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=docs/man/xl.cfg.pod.5.in;h=a699367779e2ae1212ff8f638eff0206ec1a1cc9;hb=refs/heads/master#l1257
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180403112317.28751-2-andr2000@gmail.com
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