openwrt/staging/blogic.git
6 years agodrm/i915/gvt: Add drm_format_mod update
Tina Zhang [Wed, 28 Mar 2018 05:49:29 +0000 (13:49 +0800)]
drm/i915/gvt: Add drm_format_mod update

Add drm_format_mod update, which is omitted.

Fixes: e546e281("drm/i915/gvt: Dmabuf support for GVT-g")
Cc: stable@vger.kernel.org
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Disable primary/sprite/cursor plane at virtual display initialization
Xiong Zhang [Tue, 27 Mar 2018 21:30:14 +0000 (05:30 +0800)]
drm/i915/gvt: Disable primary/sprite/cursor plane at virtual display initialization

Much error exist in host dmesg during guest boot up with loca display
enabled.
gvt: vgpu 1: invalid range gmadr 0x0 size 0x0

This error happens when qemu get dmabuf info in case that the virtual
display plane is enabled but its base address is an invalid 0, such
case may be true before guest enable its plane. At this moment, its
state is copied from host where the plane may be enabled.

This patch disable primary/sprite/cursor plane at virtual display
initialization, so intel_vgpu_decode_primary/cursor/sprite could
return early as plane is disabled, then plane base check is skipped and
error message disapper.

Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Delete redundant error message in fb_decode.c
Xiong Zhang [Tue, 27 Mar 2018 21:30:13 +0000 (05:30 +0800)]
drm/i915/gvt: Delete redundant error message in fb_decode.c

Much error message exist in host dmesg when guest boot up with local
display enabled.
[  167.680011] gvt: vgpu 1: invalid range gmadr 0x0 size 0x0
[  167.680013] gvt: vgpu 1: invalid gma address: 0

The second error line duplicate with the first error line, so this
patch remove this redundant error message and make the next error
message much clearer.

Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Cancel dma map when resetting ggtt entries
Changbin Du [Tue, 27 Mar 2018 07:35:15 +0000 (15:35 +0800)]
drm/i915/gvt: Cancel dma map when resetting ggtt entries

Ditto, don't forget ggtt entries during reset.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Missed to cancel dma map for ggtt entries
Changbin Du [Tue, 27 Mar 2018 07:35:14 +0000 (15:35 +0800)]
drm/i915/gvt: Missed to cancel dma map for ggtt entries

We have canceled dma map for ppgtt entries. Also we need to do it for
ggtt entries when them are invalidated.

This can fix task hung issue as:
[13517.791767] INFO: task gvt_service_thr:1081 blocked for more than 120 seconds.
[13517.792584] Not tainted 4.14.15+ #3
[13517.793417] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[13517.794267] gvt_service_thr D 0 1081 2 0x80000000
[13517.795132] Call Trace:
[13517.795996] ? __schedule+0x493/0x77b
[13517.796859] schedule+0x79/0x82
[13517.797740] schedule_preempt_disabled+0x5/0x6
[13517.798614] __mutex_lock.isra.0+0x2b5/0x445
[13517.799504] ? __switch_to_asm+0x24/0x60
[13517.800381] ? intel_gvt_cleanup+0x10/0x10
[13517.801261] ? intel_gvt_schedule+0x19/0x2b9
[13517.802107] intel_gvt_schedule+0x19/0x2b9
[13517.802954] ? intel_gvt_cleanup+0x10/0x10
[13517.803824] gvt_service_thread+0xe3/0x10d
[13517.804704] ? wait_woken+0x68/0x68
[13517.805588] kthread+0x118/0x120
[13517.806478] ? kthread_create_on_node+0x3a/0x3a
[13517.807381] ? call_usermodehelper_exec_async+0x113/0x11a
[13517.808307] ret_from_fork+0x35/0x40

v3: split out ggtt reset case.
v2: also unmap ggtt during reset.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Make MI_USER_INTERRUPT nop in cmd parser
Zhipeng Gong [Mon, 26 Mar 2018 07:18:56 +0000 (15:18 +0800)]
drm/i915/gvt: Make MI_USER_INTERRUPT nop in cmd parser

GVT-g dispatches request to host i915 and depends on i915 notify
ring interrupt mechanism to check completion of request.
For now MI_USER_INTERRUPT in guest requests is passed through
in GVT-g cmd parser and i915 does not use it, which causes
unnecessary interrupt handling in i915.
On the other hand, if several requests from guest are combined into
one request in and contain MI_USER_INTERRUPT in the middle of
combined request. GVT-g still has to wait on the whole request to
complete to inject user interrupts to guest.

This patch makes all the MI_USER_INTERRUPT nop to save some interrupt
handling.

Here is test result to run glmark2 on guest for 10 seconds:
host master interrupts number is reduced from 16021 to 11162
host user interrupts number is reduced from 7936 to 3536

v2:
- revise commit message. (Kevin)

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Zhipeng Gong <zhipeng.gong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Mark expected switch fall-through in handle_g2v_notification
Gustavo A. R. Silva [Thu, 22 Mar 2018 17:27:54 +0000 (12:27 -0500)]
drm/i915/gvt: Mark expected switch fall-through in handle_g2v_notification

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1466154 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: throw error on unhandled vfio ioctls
Gerd Hoffmann [Wed, 21 Mar 2018 14:08:47 +0000 (15:08 +0100)]
drm/i915/gvt: throw error on unhandled vfio ioctls

On unknown/unhandled ioctls the driver should return an error, so
userspace knows it tried to use something unsupported.

Cc: stable@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: force to set all context control bits from guest
Zhenyu Wang [Mon, 19 Mar 2018 09:09:05 +0000 (17:09 +0800)]
drm/i915/gvt: force to set all context control bits from guest

Our shadow context content is from guest but with masked control reg like
CTX_CONTEXT_CONTROL, we need to make sure all settings from guest would be set
when this context is on hw, this trys to force mask enable bits for all to
ensure every bits setting would be effective on hw.

One regression found related to once inhibit bit is set, gpu engine are working
on inhibit state until MI_LOAD_REG_IMM command or context image clear inhibit
bit with mask bit set to 1, and val bit set to 0. In gvt-g currently workload
has the highest priority, so gvt-g workload could trigger preempt context
easily, preempt context set inhibit bit, then gvt-g workload is scheduled in,
but gvt-g workload shadow context image usually doesn't set inhibit mask bit,
so gpu is still in inhibit state when gvt workload is running. This caused gpu
hang.

Suggested-by: Zhang, Xiong <xiong.y.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Zhang, Xiong <xiong.y.zhang@intel.com>
6 years agodrm/i915/gvt: Update PDPs after a vGPU mm object is pinned.
Zhi Wang [Wed, 7 Feb 2018 10:12:15 +0000 (18:12 +0800)]
drm/i915/gvt: Update PDPs after a vGPU mm object is pinned.

The PDPs of a shadow page will only be valid after a vGPU mm is pinned.
So the PDPs in the shadow context should be updated then.

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Invalidate vGPU PPGTT mm objects during a vGPU reset.
Zhi Wang [Wed, 7 Feb 2018 10:12:14 +0000 (18:12 +0800)]
drm/i915/gvt: Invalidate vGPU PPGTT mm objects during a vGPU reset.

As different OSes might handling GVT PPGTT creation/destroy notification
differently during a vGPU reset. A better approach is invalidating all
vGPU PPGTT mm objects during vGPU reset.

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/kvmgt: Handle kzalloc failure
Changbin Du [Mon, 12 Mar 2018 07:12:34 +0000 (15:12 +0800)]
drm/i915/kvmgt: Handle kzalloc failure

Out-of-memory error must be handled correctly.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: fix spelling mistake: "destoried" -> "destroyed"
Colin Ian King [Mon, 12 Mar 2018 11:43:58 +0000 (12:43 +0100)]
drm/i915/gvt: fix spelling mistake: "destoried" -> "destroyed"

Trivial fix to spelling mistake in gvt_err error message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/gvt: Remove reduntant printing of untracked mmio
Colin Xu [Sat, 17 Mar 2018 07:31:02 +0000 (15:31 +0800)]
drm/i915/gvt: Remove reduntant printing of untracked mmio

Reduntant message prints when:
  - linux guest creating.
  - dma-buf win10 guest boot.
  - xonotic stress testing in linux guest.

Add below registers to default MMIO handler:
    0xd00, RPM_CONFIG0
    0xd40, RC6_LOCATION
    0x65010, HSW_AUD_MISC_CTRL
    0x6671c,
    0x700a0, CUR_FBC_CTL
    0x7239c,

v2:
  - Should init i915_reg_t using uint32_t instead of _MMIO macro.
    (compiling errors)
  - Use defined offset in i915_reg.h
    (zhenyu)

Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
6 years agodrm/i915/pmu: Work around compiler warnings on some kernel configs
Tvrtko Ursulin [Wed, 14 Mar 2018 08:05:35 +0000 (08:05 +0000)]
drm/i915/pmu: Work around compiler warnings on some kernel configs

Arnd Bergman reports:
"""
The conditional spinlock confuses gcc into thinking the 'flags' value
might contain uninitialized data:

drivers/gpu/drm/i915/i915_pmu.c: In function '__i915_pmu_event_read':
arch/x86/include/asm/paravirt_types.h:573:3: error: 'flags' may be used uninitialized in this function [-Werror=maybe-uninitialized]

The code is correct, but it's easy to see how the compiler gets confused
here. This avoids the problem by pulling the lock outside of the function
into its only caller.
"""

On deeper look it seems this is caused by paravirt spinlocks
implementation when CONFIG_PARAVIRT_DEBUG is set, which by being
complicated, manages to convince gcc locked parameter can be changed
externally (impossible).

Work around it by removing the conditional locking parameters altogether.
(It was never the most elegant code anyway.)

Slight penalty we now pay is an additional irqsave spin lock/unlock cycle
on the event enable path. But since enable is not a fast path, that is
preferrable to the alternative solution which was doing MMIO under irqsave
spinlock.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 1fe699e30113 ("drm/i915/pmu: Fix sleep under atomic in RC6 readout")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180314080535.17490-1-tvrtko.ursulin@linux.intel.com
(cherry picked from commit ad055fb8e010e4ff37f66aeed1d380329bddce67)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
6 years agodrm/i915: Only call tasklet_kill() on the first prepare_reset
Chris Wilson [Wed, 7 Mar 2018 13:42:26 +0000 (13:42 +0000)]
drm/i915: Only call tasklet_kill() on the first prepare_reset

tasklet_kill() will spin waiting for the current tasklet to be executed.
However, if tasklet_disable() has been called, then the tasklet is never
executed but permanently put back onto the runlist until
tasklet_enable() is called. Ergo, we cannot use tasklet_kill() inside a
disable/enable pair. This is the case when we call set-wedge from inside
i915_reset(), and another request was submitted to us concurrent to the
reset.

Fixes: 963ddd63c314 ("drm/i915: Suspend submission tasklets around wedging")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307134226.25492-6-chris@chris-wilson.co.uk
(cherry picked from commit 68ad361285a9cc73b259f59adbaafde196c15987)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
6 years agodrm/i915: Wrap engine->schedule in RCU locks for set-wedge protection
Chris Wilson [Wed, 7 Mar 2018 13:42:25 +0000 (13:42 +0000)]
drm/i915: Wrap engine->schedule in RCU locks for set-wedge protection

Similar to the staging around handling of engine->submit_request, we
need to stop adding to the execlists->queue prior to calling
engine->cancel_requests. cancel_requests will move requests from the
queue onto the timeline, so if we add a request onto the queue after that
point, it will be lost.

Fixes: af7a8ffad9c5 ("drm/i915: Use rcu instead of stop_machine in set_wedged")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307134226.25492-5-chris@chris-wilson.co.uk
(cherry picked from commit 47650db02dd52267953df81438c93cf8a0eb0e5e)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
6 years agodrm/i915/icl: do not save DDI A/E sharing bit for ICL
Jani Nikula [Tue, 6 Mar 2018 10:41:55 +0000 (12:41 +0200)]
drm/i915/icl: do not save DDI A/E sharing bit for ICL

We don't want to preserve the DDI A 4 lane bit on ICL.

Fixes: 3d2011cfa41f ("drm/i915/icl: remove port A/E lane sharing limitation.")
Cc: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306104155.3526-1-jani.nikula@intel.com
(cherry picked from commit 1e6aa7e55c28ecd842b8b4599e4273c2429ee061)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
6 years agoMerge tag 'drm-intel-next-2018-03-08' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Wed, 14 Mar 2018 04:53:01 +0000 (14:53 +1000)]
Merge tag 'drm-intel-next-2018-03-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

UAPI Changes:

- Query uAPI interface (used for GPU topology information currently)
* Mesa: https://patchwork.freedesktop.org/series/38795/

Driver Changes:

- Increase PSR2 size for CNL (DK)
- Avoid retraining LSPCON link unnecessarily (Ville)
- Decrease request signaling latency (Chris)
- GuC error capture fix (Daniele)

* tag 'drm-intel-next-2018-03-08' of git://anongit.freedesktop.org/drm/drm-intel: (127 commits)
  drm/i915: Update DRIVER_DATE to 20180308
  drm/i915: add schedule out notification of preempted but completed request
  drm/i915: expose rcs topology through query uAPI
  drm/i915: add query uAPI
  drm/i915: add rcs topology to error state
  drm/i915/debugfs: add rcs topology entry
  drm/i915/debugfs: reuse max slice/subslices already stored in sseu
  drm/i915: store all subslice masks
  drm/i915/guc: work around gcc-4.4.4 union initializer issue
  drm/i915/cnl: Add Wa_2201832410
  drm/i915/icl: Gen11 forcewake support
  drm/i915/icl: Add Indirect Context Offset for Gen11
  drm/i915/icl: Enhanced execution list support
  drm/i915/icl: new context descriptor support
  drm/i915/icl: Correctly initialize the Gen11 engines
  drm/i915: Assert that the request is indeed complete when signaled from irq
  drm/i915: Handle changing enable_fbc parameter at runtime better.
  drm/i915: Track whether the DP link is trained or not
  drm/i915: Nuke intel_dp->channel_eq_status
  drm/i915: Move SST DP link retraining into the ->post_hotplug() hook
  ...

6 years agoMerge tag 'drm-amdkfd-next-2018-03-11' of git://people.freedesktop.org/~gabbayo/linux...
Dave Airlie [Wed, 14 Mar 2018 01:06:38 +0000 (11:06 +1000)]
Merge tag 'drm-amdkfd-next-2018-03-11' of git://people.freedesktop.org/~gabbayo/linux into drm-next

Major points for this pull request:
- Add dGPU support for amdkfd initialization code and queue handling. It's
  not complete support since the GPUVM part is missing (the under debate stuff).
- Enable PCIe atomics for dGPU if present
- Various adjustments to the amdgpu<-->amdkfd interface for dGPUs
- Refactor IOMMUv2 code to allow loading amdkfd without IOMMUv2 in the system
- Add HSA process eviction code in case of system memory pressure
- Various fixes and small changes

* tag 'drm-amdkfd-next-2018-03-11' of git://people.freedesktop.org/~gabbayo/linux: (24 commits)
  uapi: Fix type used in ioctl parameter structures
  drm/amdkfd: Implement KFD process eviction/restore
  drm/amdkfd: Add GPUVM virtual address space to PDD
  drm/amdkfd: Remove unaligned memory access
  drm/amdkfd: Centralize IOMMUv2 code and make it conditional
  drm/amdgpu: Add submit IB function for KFD
  drm/amdgpu: Add GPUVM memory management functions for KFD
  drm/amdgpu: add amdgpu_sync_clone
  drm/amdgpu: Update kgd2kfd_shared_resources for dGPU support
  drm/amdgpu: Add KFD eviction fence
  drm/amdgpu: Remove unused kfd2kgd interface
  drm/amdgpu: Fix wrong mask in get_atc_vmid_pasid_mapping_pasid
  drm/amdgpu: Fix header file dependencies
  drm/amdgpu: Replace kgd_mem with amdgpu_bo for kernel pinned gtt mem
  drm/amdgpu: remove useless BUG_ONs
  drm/amdgpu: Enable KFD initialization on dGPUs
  drm/amdkfd: Add dGPU device IDs and device info
  drm/amdkfd: Add dGPU support to kernel_queue_init
  drm/amdkfd: Add dGPU support to the MQD manager
  drm/amdkfd: Add dGPU support to the device queue manager
  ...

6 years agoMerge tag 'drm-misc-next-2018-03-09-3' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Wed, 14 Mar 2018 00:59:16 +0000 (10:59 +1000)]
Merge tag 'drm-misc-next-2018-03-09-3' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 4.17:

UAPI Changes:
 plane: Add color encoding/range properties (Jyri)
 nouveau: Replace iturbt_709 property with color_encoding property (Ville)

Core Changes:
 atomic: Move plane clipping into plane check helper (Ville)
 property: Multiple new property checks/verification (Ville)

Driver Changes:
 rockchip: Fixes & improvements for rk3399/chromebook plus (various)
 sun4i: Add H3/H5 HDMI support (Jernej)
 i915: Add support for limited/full-range ycbcr toggling (Ville)
 pl111: Add bandwidth checking/limiting (Linus)

Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
* tag 'drm-misc-next-2018-03-09-3' of git://anongit.freedesktop.org/drm/drm-misc: (85 commits)
  drm/rockchip: Don't use atomic constructs for psr
  drm/rockchip: analogix_dp: set psr activate/deactivate when enable/disable bridge
  drm/rockchip: dw_hdmi: Move HDMI vpll clock enable to bind()
  drm/rockchip: inno_hdmi: reorder clk_disable_unprepare call in unbind
  drm/rockchip: inno_hdmi: Fix error handling path.
  drm/rockchip: dw-mipi-dsi: Fix connector and encoder cleanup.
  drm/nouveau: Replace the iturbt_709 prop with the standard COLOR_ENCODING prop
  drm/pl111: Use max memory bandwidth for resolution
  drm/bridge: sii902x: Retry status read after DDI I2C
  drm/pl111: Handle the RealView variant separately
  drm/pl111: Make the default BPP a per-variant variable
  drm: simple_kms_helper: Fix .mode_valid() documentation
  bridge: Elaborate a bit on dumb VGA bridges in Kconfig
  drm/atomic: Add new reverse iterator over all plane state (V2)
  drm: Reject bad property flag combinations
  drm: Make property flags u32
  drm/uapi: Deprecate DRM_MODE_PROP_PENDING
  drm: WARN when trying to add enum value > 63 to a bitmask property
  drm: WARN when trying add enum values to non-enum/bitmask properties
  drm: Reject replacing property enum values
  ...

6 years agodrm/amd/pp: fix missing CONFIG_ACPI.
Dave Airlie [Wed, 14 Mar 2018 00:54:55 +0000 (10:54 +1000)]
drm/amd/pp: fix missing CONFIG_ACPI.

This was stopping me building on ARM after last pull.

Signed-off-by: Dave Airlie <airlied@redhat.com>
6 years agoMerge branch 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 9 Mar 2018 00:50:45 +0000 (10:50 +1000)]
Merge branch 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-next

More stuff for 4.17. Highlights:
- More fixes for "wattman" like functionality (fine grained clk/voltage control)
- Add more power profile infrastucture (context based dpm)
- SR-IOV fixes
- Add iomem debugging interface for use with umr
- Powerplay and cgs cleanups
- DC fixes and cleanups
- ttm improvements
- Misc cleanups all over

* 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux: (143 commits)
  drm/amdgpu:Always save uvd vcpu_bo in VM Mode
  drm/amdgpu:Correct max uvd handles
  drm/amdgpu: replace iova debugfs file with iomem (v3)
  drm/amd/display: validate plane format on primary plane
  drm/amdgpu: Clean sdma wptr register when only enable wptr polling
  drm/amd/amdgpu: re-add missing GC 9.1 and SDMA0 4.1 sh_mask header files
  drm/amdgpu: give warning before sleep in kiq_r/wreg
  drm/amdgpu: further mitigate workaround for i915
  drm/amdgpu: drop gtt->adev
  drm/amdgpu: add amdgpu_evict_gtt debugfs entry
  drm/amd/pp: Add #ifdef checks for CONFIG_ACPI
  drm/amd/pp: fix "Delete the wrapper layer of smu_allocate/free_memory"
  drm/amd/pp: Drop wrapper functions for upper/lower_32_bits
  drm/amdgpu: Delete cgs wrapper functions for gpu memory manager
  drm/amd/pp: Delete the wrapper layer of smu_allocate/free_memory
  drm/amd/pp: Remove cgs wrapper function for temperature update
  Revert "drm/amd/pp: Add a pp feature mask bit for AutoWattman feature"
  drm/amd/pp: Add auto power profilng switch based on workloads (v2)
  drm/amd/pp: Revert gfx/compute profile switch sysfs
  drm/amd/pp: Fix sclk in highest two levels when compute on smu7
  ...

6 years agoMerge branch 'drm/next/du' of git://linuxtv.org/pinchartl/media into drm-next
Dave Airlie [Fri, 9 Mar 2018 00:22:30 +0000 (10:22 +1000)]
Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/media into drm-next

- Convert LVDS support to a drm_bridge driver
- Add DT bindings for the R8A77995 SoC
- Add DT bindings and driver support for the R8A77970 SoC

Note that the LVDS conversion depends on a patch series from Frank Rowand that
will make it upstream through Rob Herring's tree. Frank has provided a stable
branch based on v4.16-rc1 with the patches, and both Rob and I have merged it
into our trees. This should thus generate no conflict when reaching -next.

* 'drm/next/du' of git://linuxtv.org/pinchartl/media:
  dt-bindings: display: renesas: lvds: Document r8a77995 bindings
  dt-bindings: display: renesas: du: Document r8a77995 bindings
  drm: rcar-du: lvds: Add R8A77970 support
  drm: rcar-du: Add R8A77970 support
  dt-bindings: display: renesas: lvds: Document R8A77970 bindings
  dt-bindings: display: renesas: du: Document R8A77970 bindings
  drm: rcar-du: Convert LVDS encoder code to bridge driver
  drm: rcar-du: Fix legacy DT to create LVDS encoder nodes
  dt-bindings: display: renesas: Deprecate LVDS support in the DU bindings
  dt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings
  of: improve reporting invalid overlay target path
  of: convert unittest overlay devicetree source to sugar syntax
  of: Documentation: of_overlay_apply() replaced by of_overlay_fdt_apply()
  of: change overlay apply input data from unflattened to FDT
  x86: devicetree: fix config option around x86_flattree_get_config()

6 years agodrm/rockchip: Don't use atomic constructs for psr
Sean Paul [Mon, 5 Mar 2018 22:22:54 +0000 (23:22 +0100)]
drm/rockchip: Don't use atomic constructs for psr

Instead of using timer and spinlocks, use delayed_work and
mutexes for rockchip psr. This allows us to make blocking
calls when enabling/disabling psr (which is sort of important
given we're talking over dpcd to the display).

Cc: Caesar Wang <wxt@rock-chips.com>
Cc: 征增 王 <wzz@rock-chips.com>
Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305222324.5872-3-enric.balletbo@collabora.com
6 years agodrm/rockchip: analogix_dp: set psr activate/deactivate when enable/disable bridge
zain wang [Mon, 5 Mar 2018 22:22:53 +0000 (23:22 +0100)]
drm/rockchip: analogix_dp: set psr activate/deactivate when enable/disable bridge

There's a race between when bridge_disable and when vop_crtc_disable
are called. If the flush timer triggers a new psr work between these,
we will operate eDP without power shutdowned by bridge_disable. In this
case, moving activate/deactivate to enable/disable bridge to avoid it.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305222324.5872-2-enric.balletbo@collabora.com
6 years agodrm/rockchip: dw_hdmi: Move HDMI vpll clock enable to bind()
Jeffy Chen [Fri, 2 Mar 2018 17:57:56 +0000 (18:57 +0100)]
drm/rockchip: dw_hdmi: Move HDMI vpll clock enable to bind()

The HDMI vpll clock should be enabled when bind() is called. So move the
clk_prepare_enable of that clock to bind() function and add the missing
clk_disable_unprepare() required in error handling path and unbind().

Fixes: 12b9f204e804 ("drm: bridge/dw_hdmi: add rockchip rk3288 support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-5-enric.balletbo@collabora.com
6 years agodrm/rockchip: inno_hdmi: reorder clk_disable_unprepare call in unbind
Jeffy Chen [Fri, 2 Mar 2018 17:57:55 +0000 (18:57 +0100)]
drm/rockchip: inno_hdmi: reorder clk_disable_unprepare call in unbind

In bind the clk_prepare_enable of the HDMI pclk is called before adding the
i2c_adapter. So it should be the other way around in unbind, first remove
the i2c_adapter and then call the clk_disable_unprepare.

Fixes: 412d4ae6b7a5 ("drm/rockchip: hdmi: add Innosilicon HDMI support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-4-enric.balletbo@collabora.com
6 years agodrm/rockchip: inno_hdmi: Fix error handling path.
Jeffy Chen [Fri, 2 Mar 2018 17:57:54 +0000 (18:57 +0100)]
drm/rockchip: inno_hdmi: Fix error handling path.

Add missing error handling in bind().

Fixes: 412d4ae6b7a5 ("drm/rockchip: hdmi: add Innosilicon HDMI support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
[moved clk_disable_unprepare reordering in unbind to separate patch]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-3-enric.balletbo@collabora.com
6 years agodrm/rockchip: dw-mipi-dsi: Fix connector and encoder cleanup.
Jeffy Chen [Fri, 2 Mar 2018 17:57:53 +0000 (18:57 +0100)]
drm/rockchip: dw-mipi-dsi: Fix connector and encoder cleanup.

In bind()'s error handling path call destroy functions instead of
cleanup functions for encoder and connector and reorder to match how is
called in bind().

In unbind() call the connector and encoder destroy functions.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-2-enric.balletbo@collabora.com
6 years agodrm/nouveau: Replace the iturbt_709 prop with the standard COLOR_ENCODING prop
Ville Syrjälä [Tue, 20 Feb 2018 13:48:16 +0000 (15:48 +0200)]
drm/nouveau: Replace the iturbt_709 prop with the standard COLOR_ENCODING prop

Replace the ad-hoc iturbt_709 property with the new standard
COLOR_ENCODING property. Compiles, but not tested.

v2: Fix typos (Ilia)

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: nouveau@lists.freedesktop.org
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220134816.15229-1-ville.syrjala@linux.intel.com
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Ben Skeggs <bskeggs@redhat.com> #irc
6 years agodrm/i915: Update DRIVER_DATE to 20180308
Joonas Lahtinen [Thu, 8 Mar 2018 12:49:39 +0000 (14:49 +0200)]
drm/i915: Update DRIVER_DATE to 20180308

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
6 years agoMerge tag 'gvt-next-2018-03-08' of https://github.com/intel/gvt-linux into drm-intel...
Joonas Lahtinen [Thu, 8 Mar 2018 12:36:10 +0000 (14:36 +0200)]
Merge tag 'gvt-next-2018-03-08' of https://github.com/intel/gvt-linux into drm-intel-next-queued

gvt-next-2018-03-08

- big refactor for shadow ppgtt (Changbin)
- KBL context save/restore via LRI cmd (Weinan)
- misc smatch fixes (Zhenyu)
- Properly unmap dma for guest page (Changbin)
- other misc fixes (Xiong, etc.)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180308023152.oi4ialn5uxetbruf@zhen-hp.sh.intel.com
6 years agodrm/i915: add schedule out notification of preempted but completed request
Weinan Li [Tue, 6 Mar 2018 02:15:57 +0000 (10:15 +0800)]
drm/i915: add schedule out notification of preempted but completed request

There is one corner case missing schedule out notification of the preempted
request. The preempted request is just completed when preemption happen,
then it will be canceled and won't be resubmitted later, GVT-g will lost
the schedule out notification.

Here add schedule out notification if found the preempted request has been
completed.

v2:
- refine description, add completed check and notification in
  execlists_cancel_port_requests. (Chris)

v3:
- use ternary confitional, remove local variable. (Tvrtko)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1520302557-25079-1-git-send-email-weinan.z.li@intel.com
6 years agodrm/i915: expose rcs topology through query uAPI
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:57 +0000 (12:28 +0000)]
drm/i915: expose rcs topology through query uAPI

With the introduction of asymmetric slices in CNL, we cannot rely on
the previous SUBSLICE_MASK getparam to tell userspace what subslices
are available. Here we introduce a more detailed way of querying the
Gen's GPU topology that doesn't aggregate numbers.

This is essential for monitoring parts of the GPU with the OA unit,
because counters need to be normalized to the number of
EUs/subslices/slices. The current aggregated numbers like EU_TOTAL do
not gives us sufficient information.

The Mesa series making use of this API is :

    https://patchwork.freedesktop.org/series/38795/

As a bonus we can draw representations of the GPU :

    https://imgur.com/a/vuqpa

v2: Rename uapi struct s/_mask/_info/ (Tvrtko)
    Report max_slice/subslice/eus_per_subslice rather than strides (Tvrtko)
    Add uapi macros to read data from *_info structs (Tvrtko)

v3: Use !!(v & DRM_I915_BIT()) for uapi macros instead of custom shifts (Tvrtko)

v4: factorize query item writting (Tvrtko)
    tweak uapi struct/define names (Tvrtko)

v5: Replace ALIGN() macro (Chris)

v6: Updated uapi comments (Tvrtko)
    Moved flags != 0 checks into vfuncs (Tvrtko)

v7: Use access_ok() before copying anything, to avoid overflows (Chris)
    Switch BUG_ON() to GEM_WARN_ON() (Tvrtko)

v8: Tweak uapi comments style to match the coding style (Lionel)

v9: Fix error in comment about computation of enabled subslice (Tvrtko)

v10: Fix/update comments in uAPI (Sagar)

v11: Drop drm_i915_query_(slice|subslice|eu)_info in favor of a single
     drm_i915_query_topology_info (Joonas)

v12: Add subslice_stride/eu_stride in drm_i915_query_topology_info (Joonas)

v13: Fix comment in uAPI (Joonas)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-7-lionel.g.landwerlin@intel.com
6 years agodrm/i915: add query uAPI
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:56 +0000 (12:28 +0000)]
drm/i915: add query uAPI

There are a number of information that are readable from hardware
registers and that we would like to make accessible to userspace. One
particular example is the topology of the execution units (how are
execution units grouped in subslices and slices and also which ones
have been fused off for die recovery).

At the moment the GET_PARAM ioctl covers some basic needs, but
generally is only able to return a single value for each defined
parameter. This is a bit problematic with topology descriptions which
are array/maps of available units.

This change introduces a new ioctl that can deal with requests to fill
structures of potentially variable lengths. The user is expected fill
a query with length fields set at 0 on the first call, the kernel then
sets the length fields to the their expected values. A second call to
the kernel with length fields at their expected values will trigger a
copy of the data to the pointed memory locations.

The scope of this uAPI is only to provide information to userspace,
not to allow configuration of the device.

v2: Simplify dispatcher code iteration (Tvrtko)
    Tweak uapi drm_i915_query_item structure (Tvrtko)

v3: Rename pad fields into flags (Chris)
    Return error on flags field != 0 (Chris)
    Only copy length back to userspace in drm_i915_query_item (Chris)

v4: Use array of functions instead of switch (Chris)

v5: More comments in uapi (Tvrtko)
    Return query item errors in length field (All)

v6: Tweak uapi comments style to match the coding style (Lionel)

v7: Add i915_query.h (Joonas)

v8: (Lionel) Change the behavior of the item iterator to report
    invalid queries into the query item rather than stopping the
    iteration. This enables userspace applications to query newer
    items on older kernels and only have failure on the items that are
    not supported.

v9: Edit copyright headers (Joonas)

v10: Typos & comments in uapi (Joonas)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-6-lionel.g.landwerlin@intel.com
6 years agodrm/i915: add rcs topology to error state
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:55 +0000 (12:28 +0000)]
drm/i915: add rcs topology to error state

This might be useful information for developers looking at an error
state.

v2: Place topology towards the end of the error state (Chris)

v3: Reuse common printing code (Michal)

v4: Make this a one-liner (Chris)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-5-lionel.g.landwerlin@intel.com
6 years agodrm/i915/debugfs: add rcs topology entry
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:54 +0000 (12:28 +0000)]
drm/i915/debugfs: add rcs topology entry

While the end goal is to make this information available to userspace
through a new ioctl, there is no reason we can't display it in a human
readable fashion through debugfs.

slice0: 3 subslice(s) (0x7):
subslice0: 8 EUs (0xff)
subslice1: 8 EUs (0xff)
subslice2: 8 EUs (0xff)
subslice3: 0 EUs (0x0)
slice1: 3 subslice(s) (0x7):
subslice0: 8 EUs (0xff)
subslice1: 8 EUs (0xff)
subslice2: 8 EUs (0xff)
subslice3: 0 EUs (0x0)
slice2: 3 subslice(s) (0x7):
subslice0: 8 EUs (0xff)
subslice1: 8 EUs (0xff)
subslice2: 8 EUs (0xff)
subslice3: 0 EUs (0x0)

v2: Reformat debugfs printing (Tvrtko)
    Use the new EU mask helper (Tvrtko)

v3: Move printing code to intel_device_info.c to be shared with error
    state (Michal)

v4: Bump u8 to u16 when using sseu_get_eus() (Lionel)

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-4-lionel.g.landwerlin@intel.com
6 years agodrm/i915/debugfs: reuse max slice/subslices already stored in sseu
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:53 +0000 (12:28 +0000)]
drm/i915/debugfs: reuse max slice/subslices already stored in sseu

Now that we have that information in topology fields, let's just reuse it.

v2: Style tweaks (Tvrtko)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-3-lionel.g.landwerlin@intel.com
6 years agodrm/i915: store all subslice masks
Lionel Landwerlin [Tue, 6 Mar 2018 12:28:52 +0000 (12:28 +0000)]
drm/i915: store all subslice masks

Up to now, subslice mask was assumed to be uniform across slices. But
starting with Cannonlake, slices can be asymmetric (for example slice0
has different number of subslices as slice1+). This change stores all
subslices masks for all slices rather than having a single mask that
applies to all slices.

v2: Rework how we store total numbers in sseu_dev_info (Tvrtko)
    Fix CHV eu masks, was reading disabled as enabled (Tvrtko)
    Readability changes (Tvrtko)
    Add EU index helper (Tvrtko)

v3: Turn ALIGN(v, 8) / 8 into DIV_ROUND_UP(v, BITS_PER_BYTE) (Tvrtko)
    Reuse sseu_eu_idx() for setting eu_mask on CHV (Tvrtko)
    Reformat debug prints for subslices (Tvrtko)

v4: Change eu_mask helper into sseu_set_eus() (Tvrtko)

v5: With Haswell reporting masks & counts, bump sseu_*_eus() functions
    to use u16 (Lionel)

v6: Fix sseu_get_eus() for > 8 EUs per subslice (Lionel)

v7: Change debugfs enabels for number of subslices per slice, will
    need a small igt/pm_sseu change (Lionel)
    Drop subslice_total field from sseu_dev_info, rely on
    sseu_subslice_total() to recompute the value instead (Lionel)

v8: Remove unused function compute_subslice_total() (Lionel)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306122857.27317-2-lionel.g.landwerlin@intel.com
6 years agodrm/i915/guc: work around gcc-4.4.4 union initializer issue
Andrew Morton [Thu, 8 Mar 2018 00:13:33 +0000 (16:13 -0800)]
drm/i915/guc: work around gcc-4.4.4 union initializer issue

gcc-4.4.4 has problems with initalizers of anon unions.

drivers/gpu/drm/i915/intel_guc_log.c: In function 'guc_log_control':
drivers/gpu/drm/i915/intel_guc_log.c:64: error: unknown field 'logging_enabled' specified in initializer

Work around this.

Fixes: 35fe703c3161 ("drm/i915/guc: Change values for i915_guc_log_control")
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180308001333.rI2vrNRTY%akpm@linux-foundation.org
6 years agodrm/i915/cnl: Add Wa_2201832410
Rodrigo Vivi [Wed, 7 Mar 2018 22:09:12 +0000 (14:09 -0800)]
drm/i915/cnl: Add Wa_2201832410

"Clock gating bug in GWL may not clear barrier state when an EOT
is received, causing a hang the next time that barrier is used."

HSDES: 2201832410

Cc: Rafael Antognolli <rafael.antognolli@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307220912.3681-1-rodrigo.vivi@intel.com
6 years agodrm/pl111: Use max memory bandwidth for resolution
Linus Walleij [Wed, 7 Mar 2018 21:58:19 +0000 (22:58 +0100)]
drm/pl111: Use max memory bandwidth for resolution

We were previously selecting 1024x768 and 32BPP as the default
set-up for the PL111 consumers.

This does not work on elder systems: the device tree bindings
support a property "max-memory-bandwidth" in bytes/second that
states that if you exceed this the memory bus will saturate.
The result is flickering and unstable images.

Parse the "max-memory-bandwidth" and respect it when
intializing the driver. On the RealView PB11MP, Versatile and
Integrator/CP we get a nice console as default with this code.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307215819.15814-1-linus.walleij@linaro.org
6 years agodrm/bridge: sii902x: Retry status read after DDI I2C
Linus Walleij [Mon, 5 Mar 2018 10:17:02 +0000 (11:17 +0100)]
drm/bridge: sii902x: Retry status read after DDI I2C

The following happens when connection a DVI output driven
from the SiI9022 using a DVI-to-VGA adapter plug:

i2c i2c-0: sendbytes: NAK bailout.
i2c i2c-0: sendbytes: NAK bailout.

Then no picture. Apparently the I2C engine inside the SiI9022
is not smart enough to try to fall back to DDC I2C. Or the
vendor have not integrated the electronics properly. I don't
know which one it is.

After this, the I2C bus seems stalled and the first attempt to
read the status register fails, and the code returns with
negative return value, and the display fails to initialized.

Instead, retry status readout five times and continue even
if this fails.

Tested on the ARM Versatile Express with a DVI-to-VGA
connector, it now gives picture.

Introduce a helper struct device *dev variable to make
the code more readable.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305101702.13441-1-linus.walleij@linaro.org
6 years agodrm/pl111: Handle the RealView variant separately
Linus Walleij [Fri, 2 Mar 2018 09:09:47 +0000 (10:09 +0100)]
drm/pl111: Handle the RealView variant separately

We want to cut down the default bpp to 16 on the RealView so
we can have a 1024x768 framebuffer console by default. The
memory bandwidth limitations makes this not work with the
PL111 default of 32bpp.

This builds on top of the earlier patches making the
framebuffer default bpp a per-variant variable.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302090948.6399-4-linus.walleij@linaro.org
6 years agodrm/pl111: Make the default BPP a per-variant variable
Linus Walleij [Fri, 2 Mar 2018 09:09:45 +0000 (10:09 +0100)]
drm/pl111: Make the default BPP a per-variant variable

The PL110, Integrator and Versatile boards strongly prefer to
use 16 BPP even if other modes are supported, both to keep down
memory consumption and also to easier find a good match to
supported resolutions with consideration taken to the memory
bandwidth of the platforms.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302090948.6399-2-linus.walleij@linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180307084316.23623-1-linus.walleij@linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180307084316.23623-1-linus.walleij@linaro.org
6 years agodrm: simple_kms_helper: Fix .mode_valid() documentation
Linus Walleij [Tue, 27 Feb 2018 10:11:09 +0000 (11:11 +0100)]
drm: simple_kms_helper: Fix .mode_valid() documentation

This fixes up the .mode_valid() vtable entry documentation
by copyediting the documentation from the .mode_valid()
documentation in the drm_modeset_helper_vtables.h file.

Fixes: 40275dc4edb4 ("drm: simple_kms_helper: Add mode_valid() callback support")
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227101109.6088-1-linus.walleij@linaro.org
6 years agobridge: Elaborate a bit on dumb VGA bridges in Kconfig
Linus Walleij [Fri, 2 Mar 2018 09:14:26 +0000 (10:14 +0100)]
bridge: Elaborate a bit on dumb VGA bridges in Kconfig

It's better if we explain a bit that this pertains to
non-programmable VGA DAC bridges.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302091426.8463-1-linus.walleij@linaro.org
6 years agodrm/amdgpu:Always save uvd vcpu_bo in VM Mode
James Zhu [Tue, 6 Mar 2018 19:52:35 +0000 (14:52 -0500)]
drm/amdgpu:Always save uvd vcpu_bo in VM Mode

When UVD is in VM mode, there is not uvd handle exchanged,
uvd.handles are always 0. So vcpu_bo always need save,
Otherwise amdgpu driver will fail during suspend/resume.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105021
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
6 years agodrm/amdgpu:Correct max uvd handles
James Zhu [Tue, 6 Mar 2018 19:43:50 +0000 (14:43 -0500)]
drm/amdgpu:Correct max uvd handles

Max uvd handles should use adev->uvd.max_handles instead of
AMDGPU_MAX_UVD_HANDLES here.

Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
6 years agodrm/amdgpu: replace iova debugfs file with iomem (v3)
Tom St Denis [Fri, 23 Feb 2018 14:46:23 +0000 (09:46 -0500)]
drm/amdgpu: replace iova debugfs file with iomem (v3)

This allows access to pages allocated through the driver with optional
IOMMU mapping.

v2: Fix number of bytes copied and add write method
v3: drop check for kmap return

Original-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/display: validate plane format on primary plane
Shirish S [Wed, 7 Mar 2018 07:06:11 +0000 (12:36 +0530)]
drm/amd/display: validate plane format on primary plane

In dce110, the plane configuration is such that plane 0
or the primary plane should be rendered with only RGB data.

This patch adds the validation to ensure that no video data
is rendered on plane 0.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: Clean sdma wptr register when only enable wptr polling
Emily Deng [Wed, 7 Mar 2018 01:47:43 +0000 (09:47 +0800)]
drm/amdgpu: Clean sdma wptr register when only enable wptr polling

The sdma wptr polling memory is not fast enough, then the sdma
wptr register will be random, and not equal to sdma rptr, which
will cause sdma engine hang when load driver, so clean up the sdma
wptr directly to fix this issue.

v2:add comment above the code and correct coding style

Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/amdgpu: re-add missing GC 9.1 and SDMA0 4.1 sh_mask header files
Tom St Denis [Tue, 6 Mar 2018 15:52:41 +0000 (10:52 -0500)]
drm/amd/amdgpu: re-add missing GC 9.1 and SDMA0 4.1 sh_mask header files

These are required by umr to properly parse bitfield offsets.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: give warning before sleep in kiq_r/wreg
Monk Liu [Mon, 5 Mar 2018 11:26:36 +0000 (19:26 +0800)]
drm/amdgpu: give warning before sleep in kiq_r/wreg

to catch error that may schedule in atomic context early on

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: further mitigate workaround for i915
Christian König [Tue, 20 Feb 2018 18:51:02 +0000 (19:51 +0100)]
drm/amdgpu: further mitigate workaround for i915

Disable the workaround on imported BOs as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: drop gtt->adev
Christian König [Wed, 28 Feb 2018 08:35:39 +0000 (09:35 +0100)]
drm/amdgpu: drop gtt->adev

We can use ttm->bdev instead.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: add amdgpu_evict_gtt debugfs entry
Christian König [Mon, 19 Feb 2018 13:47:55 +0000 (14:47 +0100)]
drm/amdgpu: add amdgpu_evict_gtt debugfs entry

Allow evicting all BOs from the GTT domain.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/pp: Add #ifdef checks for CONFIG_ACPI
Rex Zhu [Tue, 6 Mar 2018 06:42:24 +0000 (14:42 +0800)]
drm/amd/pp: Add #ifdef checks for CONFIG_ACPI

Fix compiling error when CONFIG_ACPI not enabled.

Change-Id: I5f901adbc799c10b30e5ea79f8f44760e749fae1
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
6 years agodrm/amd/pp: fix "Delete the wrapper layer of smu_allocate/free_memory"
Christian König [Tue, 6 Mar 2018 13:56:00 +0000 (14:56 +0100)]
drm/amd/pp: fix "Delete the wrapper layer of smu_allocate/free_memory"

For amdgpu_bo_create_kernel to work the handle must be NULL initialized,
otherwise we only try to pin and map the BO.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Rex Zhu <rezhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/pp: Drop wrapper functions for upper/lower_32_bits
Rex Zhu [Tue, 6 Mar 2018 05:31:13 +0000 (13:31 +0800)]
drm/amd/pp: Drop wrapper functions for upper/lower_32_bits

replace smu_upper_32_bits/smu_lower_32_bits with
the standard kernel macros

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amdgpu: Delete cgs wrapper functions for gpu memory manager
Rex Zhu [Mon, 5 Mar 2018 10:36:47 +0000 (18:36 +0800)]
drm/amdgpu: Delete cgs wrapper functions for gpu memory manager

delete those cgs interfaces:
amdgpu_cgs_alloc_gpu_mem
amdgpu_cgs_free_gpu_mem
amdgpu_cgs_gmap_gpu_mem
amdgpu_cgs_gunmap_gpu_mem
amdgpu_cgs_kmap_gpu_mem
amdgpu_cgs_kunmap_gpu_mem

Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/pp: Delete the wrapper layer of smu_allocate/free_memory
Rex Zhu [Tue, 6 Mar 2018 05:13:21 +0000 (13:13 +0800)]
drm/amd/pp: Delete the wrapper layer of smu_allocate/free_memory

use amdgpu_bo_create/free_kernel instand.

Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/pp: Remove cgs wrapper function for temperature update
Rex Zhu [Mon, 5 Mar 2018 08:07:22 +0000 (16:07 +0800)]
drm/amd/pp: Remove cgs wrapper function for temperature update

Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agoRevert "drm/amd/pp: Add a pp feature mask bit for AutoWattman feature"
Rex Zhu [Mon, 5 Mar 2018 06:42:56 +0000 (14:42 +0800)]
Revert "drm/amd/pp: Add a pp feature mask bit for AutoWattman feature"

This reverts commit e429ea87b2939c4cce1b439baf6d76535a0767f2.

Implement Workload Aware Dynamic power management instand of
AutoWattman feature in linux.

Reviewed-by: Alex Deucher <alexdeucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/amd/pp: Add auto power profilng switch based on workloads (v2)
Rex Zhu [Fri, 2 Mar 2018 12:09:11 +0000 (20:09 +0800)]
drm/amd/pp: Add auto power profilng switch based on workloads (v2)

Add power profiling mode dynamic switch based on the workloads.
Currently, support Cumpute, VR, Video, 3D,power saving with Cumpute
have highest prority, power saving have lowest prority.

in manual dpm mode, driver will stop auto switch, just save the client's
requests. user can set power profiling mode through sysfs.

when exit manual dpm mode, driver will response the client's requests.
switch based on the client's prority.

v2: squash in fixes from Rex

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 years agodrm/atomic: Add new reverse iterator over all plane state (V2)
Shirish S [Wed, 7 Mar 2018 03:10:03 +0000 (08:40 +0530)]
drm/atomic: Add new reverse iterator over all plane state (V2)

Add reverse iterator for_each_oldnew_plane_in_state_reverse to
compliment the for_each_oldnew_plane_in_state way or reading plane
states.

The plane states are required to be read in reverse order for
amd drivers, cause the z order convention followed in linux is
opposite to how the planes are supposed to be presented to DC
engine, which is in common to both windows and linux.

V2: fix compile time errors due to -Werror flag.

Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1520392203-6885-1-git-send-email-shirish.s@amd.com
6 years agodt-bindings: display: renesas: lvds: Document r8a77995 bindings
Kieran Bingham [Thu, 15 Feb 2018 08:38:18 +0000 (08:38 +0000)]
dt-bindings: display: renesas: lvds: Document r8a77995 bindings

The D3 (r8a77995) supports two LVDS channels. Extend the binding to
support them.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
[Fixed compatible string]
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodt-bindings: display: renesas: du: Document r8a77995 bindings
Kieran Bingham [Thu, 15 Feb 2018 08:38:17 +0000 (08:38 +0000)]
dt-bindings: display: renesas: du: Document r8a77995 bindings

Document the D3 (r8a77995) SoC in the R-Car DU bindings.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodrm: rcar-du: lvds: Add R8A77970 support
Sergei Shtylyov [Thu, 1 Mar 2018 18:10:16 +0000 (21:10 +0300)]
drm: rcar-du: lvds: Add R8A77970 support

Add support for the R-Car V3M (R8A77970) SoC to the LVDS encoder driver.
Note that there are some differences with the other R-Car gen3 SoCs, e.g.
LVDPLLCR has the same layout as in the R-Car gen2 SoCs.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodrm: rcar-du: Add R8A77970 support
Sergei Shtylyov [Thu, 18 Jan 2018 21:05:59 +0000 (00:05 +0300)]
drm: rcar-du: Add R8A77970 support

Add support for the R-Car V3M (R8A77970) SoC to the R-Car DU driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodt-bindings: display: renesas: lvds: Document R8A77970 bindings
Sergei Shtylyov [Fri, 19 Jan 2018 18:29:20 +0000 (21:29 +0300)]
dt-bindings: display: renesas: lvds: Document R8A77970 bindings

Document the R-Car V3M (R8A77970) SoC in the R-Car LVDS bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodt-bindings: display: renesas: du: Document R8A77970 bindings
Sergei Shtylyov [Thu, 18 Jan 2018 21:05:58 +0000 (00:05 +0300)]
dt-bindings: display: renesas: du: Document R8A77970 bindings

Document the R-Car V3M (R8A77970) SoC in the R-Car DU bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
6 years agodrm: Reject bad property flag combinations
Ville Syrjälä [Tue, 6 Mar 2018 16:48:49 +0000 (18:48 +0200)]
drm: Reject bad property flag combinations

Pimp drm_property_type_valid() to check for more fails with the
property flags. Also make the check before adding the property,
and bail out if things look bad.

Since we're now chekcing for more than the type let's also
change the function name to drm_property_flags_valid().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-6-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm: Make property flags u32
Ville Syrjälä [Tue, 6 Mar 2018 16:48:48 +0000 (18:48 +0200)]
drm: Make property flags u32

The property flags are part of the uabi and we have 32 bits for them.
Pass them around as u32 internally as well, instead of a signed int.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-5-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm/uapi: Deprecate DRM_MODE_PROP_PENDING
Ville Syrjälä [Tue, 6 Mar 2018 16:48:47 +0000 (18:48 +0200)]
drm/uapi: Deprecate DRM_MODE_PROP_PENDING

DRM_MODE_PROP_PENDING is not used anywhere (except printed out
by libdrm proptest/modetest).

This seems to be yet another thing blindly copied from xrandr.
Quoting from the protocol spec:
"If 'pending' is TRUE, changes made to property values with
 RRChangeOutputProperty will be saved in the pending property value
 and be automatically copied to the current value on the next
 RRSetCrtcConfig request involving the named output. If 'pending' is
 FALSE, changes are copied immediately."

So it was some kind of early idea for atomic property updates.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-4-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm: WARN when trying to add enum value > 63 to a bitmask property
Ville Syrjälä [Tue, 6 Mar 2018 16:48:46 +0000 (18:48 +0200)]
drm: WARN when trying to add enum value > 63 to a bitmask property

Enum values >63 with a bitmask property is a programmer error. WARN
when someone is attempting this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-3-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm: WARN when trying add enum values to non-enum/bitmask properties
Ville Syrjälä [Tue, 6 Mar 2018 16:48:45 +0000 (18:48 +0200)]
drm: WARN when trying add enum values to non-enum/bitmask properties

Trying to add enum values to non-enum/bitmask properties is a
programmer mistake. WARN to make sure the developers notice
their mistake.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-2-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm: Reject replacing property enum values
Ville Syrjälä [Tue, 6 Mar 2018 16:48:44 +0000 (18:48 +0200)]
drm: Reject replacing property enum values

If the property already has the enum value WARN and bail.
Replacing enum values doesn't make sense to me.

Throw out the pointless list_empty() while at it.

Cc: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
6 years agodrm: rcar-du: Convert LVDS encoder code to bridge driver
Laurent Pinchart [Wed, 10 Jan 2018 03:47:42 +0000 (05:47 +0200)]
drm: rcar-du: Convert LVDS encoder code to bridge driver

The LVDS encoders used to be described in DT as part of the DU. They now
have their own DT node, linked to the DU using the OF graph bindings.
This allows moving internal LVDS encoder support to a separate driver
modelled as a DRM bridge. Backward compatibility is retained as legacy
DT is patched live to move to the new bindings.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agodrm: rcar-du: Fix legacy DT to create LVDS encoder nodes
Laurent Pinchart [Wed, 10 Jan 2018 00:40:27 +0000 (02:40 +0200)]
drm: rcar-du: Fix legacy DT to create LVDS encoder nodes

The internal LVDS encoders now have their own DT bindings. Before
switching the driver infrastructure to those new bindings, implement
backward-compatibility through live DT patching.

Patching is disabled and will be enabled along with support for the new
DT bindings in the DU driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
6 years agodt-bindings: display: renesas: Deprecate LVDS support in the DU bindings
Laurent Pinchart [Wed, 10 Jan 2018 14:05:46 +0000 (16:05 +0200)]
dt-bindings: display: renesas: Deprecate LVDS support in the DU bindings

The internal LVDS encoders now have their own DT bindings, representing
them as part of the DU is deprecated.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agodt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings
Laurent Pinchart [Wed, 10 Jan 2018 14:05:46 +0000 (16:05 +0200)]
dt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings

The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add
corresponding device tree bindings.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
6 years agoMerge tag 'overlay_apply_fdt_v7-for-4.17' of git://git.kernel.org/pub/scm/linux/kerne...
Laurent Pinchart [Sun, 4 Mar 2018 11:33:50 +0000 (13:33 +0200)]
Merge tag 'overlay_apply_fdt_v7-for-4.17' of git://git./linux/kernel/git/frowand/linux into drm/next/du

- DT overlay applying rework (Frank Rowand)

Move duplicating and unflattening of an overlay flattened devicetree
(FDT) into the overlay application code.  To accomplish this,
of_overlay_apply() is replaced by of_overlay_fdt_apply().

6 years agodrm/bridge: analogix_dp: Don't create useless connectors
Marek Szyprowski [Mon, 5 Mar 2018 08:57:41 +0000 (09:57 +0100)]
drm/bridge: analogix_dp: Don't create useless connectors

If there is another bridge after analogix_dp, then the connector object
should not be created. This fixes following timeouts on Exynos5420-based
Chromebook2 Peach-PIT board during boot:

exynos-dp 145b0000.dp-controller: AUX CH cmd reply timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-4-m.szyprowski@samsung.com
6 years agodrm/bridge: analogix_dp: Postpone enabling runtime power management
Marek Szyprowski [Mon, 5 Mar 2018 08:57:40 +0000 (09:57 +0100)]
drm/bridge: analogix_dp: Postpone enabling runtime power management

Enabling runtime power management early in analogix_dp_bind() causes following
kernel NULL pointer dereference:

Unable to handle kernel NULL pointer dereference at virtual address 000007d8
pgd = 28ffa2e4
[000007d8] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 6 PID: 69 Comm: kworker/6:1 Not tainted 4.16.0-rc1-00062-ge25751974ba8 #3622
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
PC is at analogix_dp_resume+0x8/0xc0
LR is at pm_generic_runtime_resume+0x2c/0x38
pc : [<c0531b98>]    lr : [<c0543fec>] psr: a0000113
sp : ee13fbd8  ip : 0000001a  fp : 00000001
r10: ee0eb080  r9 : c0552bd8  r8 : c0fb1d98
r7 : eebb1010  r6 : eeae9808  r5 : 00000000  r4 : d4850415
r3 : ee0ed010  r2 : b2d05e00  r1 : 00000000  r0 : 00000000
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM Segment none
Control: 10c5387d  Table: 2000406a  DAC: 00000051
Process kworker/6:1 (pid: 69, stack limit = 0x913205b4)
Stack: (0xee13fbd8 to 0xee140000)
...
[<c0531b98>] (analogix_dp_resume) from [<c0543fec>] (pm_generic_runtime_resume+0x2c/0x38)
[<c0543fec>] (pm_generic_runtime_resume) from [<c054ffb4>] (__genpd_runtime_resume+0x2c/0x8c)
[<c054ffb4>] (__genpd_runtime_resume) from [<c0552d24>] (genpd_runtime_resume+0x14c/0x258)
[<c0552d24>] (genpd_runtime_resume) from [<c0547798>] (__rpm_callback+0x134/0x214)
[<c0547798>] (__rpm_callback) from [<c0547898>] (rpm_callback+0x20/0x80)
[<c0547898>] (rpm_callback) from [<c0546ff4>] (rpm_resume+0x3a0/0x734)
[<c0546ff4>] (rpm_resume) from [<c05475ec>] (__pm_runtime_resume+0x64/0x9c)
[<c05475ec>] (__pm_runtime_resume) from [<c053b95c>] (__device_attach+0x8c/0x134)
[<c053b95c>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c05390d0>] (device_add+0x3a8/0x580)
[<c05390d0>] (device_add) from [<c06764c4>] (i2c_register_adapter+0xd4/0x3ec)
[<c06764c4>] (i2c_register_adapter) from [<c05321c8>] (analogix_dp_bind+0x2a0/0x410)
[<c05321c8>] (analogix_dp_bind) from [<c0528e90>] (exynos_dp_bind+0x9c/0x12c)
[<c0528e90>] (exynos_dp_bind) from [<c0535bc4>] (component_bind_all+0xfc/0x258)
[<c0535bc4>] (component_bind_all) from [<c0522ee8>] (exynos_drm_bind+0x15c/0x28c)
[<c0522ee8>] (exynos_drm_bind) from [<c0536378>] (try_to_bring_up_master+0x1b8/0x29c)
[<c0536378>] (try_to_bring_up_master) from [<c05364fc>] (component_add+0xa0/0x170)
[<c05364fc>] (component_add) from [<c0528fe4>] (exynos_dp_probe+0x64/0xb8)
[<c0528fe4>] (exynos_dp_probe) from [<c053debc>] (platform_drv_probe+0x50/0xb0)
[<c053debc>] (platform_drv_probe) from [<c053bd18>] (driver_probe_device+0x2b8/0x4a0)
[<c053bd18>] (driver_probe_device) from [<c0539e4c>] (bus_for_each_drv+0x44/0x8c)
[<c0539e4c>] (bus_for_each_drv) from [<c053b970>] (__device_attach+0xa0/0x134)
[<c053b970>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c053b258>] (deferred_probe_work_func+0x3c/0x168)
[<c053b258>] (deferred_probe_work_func) from [<c014352c>] (process_one_work+0x1d0/0x7bc)
[<c014352c>] (process_one_work) from [<c0143b84>] (worker_thread+0x34/0x4dc)
[<c0143b84>] (worker_thread) from [<c014a30c>] (kthread+0x128/0x164)
[<c014a30c>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
Exception stack(0xee13ffb0 to 0xee13fff8)
ffa0:                                     00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
Code: e2800e37 eafee601 e92d4070 e1a05000 (e59067d8)
---[ end trace bf6046013df7cab2 ]---

This oops happens, because analogix_dp_bind() calls drm_dp_aux_register()
which registers i2c adapter. I2C core tries to runtime get i2c host
device during registration. This ends in analogix_dp_resume(), but dp
context is NULL there. dp context is set in exynos_dp_bind() after
executing analogix_dp_bind(). Fix this issue by postponing enabling runtime
power management after drm_dp_aux_register().

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-3-m.szyprowski@samsung.com
6 years agodrm/bridge: analogix_dp: Don't power bridge in analogix_dp_bind
zain wang [Mon, 5 Mar 2018 08:57:39 +0000 (09:57 +0100)]
drm/bridge: analogix_dp: Don't power bridge in analogix_dp_bind

The bridge does not need to be powered in analogix_dp_bind(), so
remove the calls to pm_runtime_get()/phy_power_on()/analogix_dp_init_dp()
as well as their power-off counterparts.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
[the patch originally just removed the power_on portion, seanpaul removed
the power off code as well as improved the commit message]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-2-m.szyprowski@samsung.com
6 years agodrm/i915/icl: Gen11 forcewake support
Daniele Ceraolo Spurio [Fri, 2 Mar 2018 16:15:01 +0000 (18:15 +0200)]
drm/i915/icl: Gen11 forcewake support

The main difference with previous GENs is that starting from Gen11
each VCS and VECS engine has its own power well, which only exist
if the related engine exists in the HW.
The fallback forcewake request workaround is only needed on gen9
according to the HSDES WA entry (1604254524), so we can go back to using
the simpler fw_domains_get/put functions.

BSpec: 18331

v2: fix fwtable, use array to test shadow tables, create new
    accessors to avoid check on every access (Tvrtko)
v3 (from Paulo): Rebase.
v4:
  - Range 09400-097FF should be FORCEWAKE_ALL (Daniele)
  - Use the BIT macro for forcewake domains (Daniele)
  - Add a comment about the range ordering (Oscar)
  - Updated commit message (Oscar)
v5: Rebased
v6: Use I915_MAX_VCS/VECS (Michal)
v7: translate FORCEWAKE_ALL to available domains
v8: rebase, add clarification on fallback ack in commit message.
v9: fix rebase issue, change check in fw_domains_init from IS_GEN11
    to GEN >= 11
v10: Generate is_genX_shadowed with a macro (Daniele)
     Include gen11_fw_ranges in the selftest (Michel)
v11: Simplify FORCEWAKE_ALL, new line between NEEDS_FORCEWAKEs (Tvrtko)

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Acked-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-6-mika.kuoppala@linux.intel.com
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
6 years agodrm/i915/icl: Add Indirect Context Offset for Gen11
Michel Thierry [Fri, 2 Mar 2018 16:15:00 +0000 (18:15 +0200)]
drm/i915/icl: Add Indirect Context Offset for Gen11

v2: rebased to intel_lr_indirect_ctx_offset
v3: rebase, move define to intel_lrc_reg.h

BSpec: 11740
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-5-mika.kuoppala@linux.intel.com
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
6 years agodrm/i915/icl: Enhanced execution list support
Thomas Daniel [Fri, 2 Mar 2018 16:14:59 +0000 (18:14 +0200)]
drm/i915/icl: Enhanced execution list support

Enhanced Execlists is an upgraded version of execlists which supports
up to 8 ports. The lrcs to be submitted are written to a submit queue
(the ExecLists Submission Queue - ELSQ), which is then loaded on the
HW. When writing to the ELSP register, the lrcs are written cyclically
in the queue from position 0 to position 7. Alternatively, it is
possible to write directly in the individual positions of the queue
using the ELSQC registers. To be able to re-use all the existing code
we're using the latter method and we're currently limiting ourself to
only using 2 elements.

v2: Rebase.
v3: Switch from !IS_GEN11 to GEN < 11 (Daniele Ceraolo Spurio).
v4: Use the elsq registers instead of elsp. (Daniele Ceraolo Spurio)
v5: Reword commit, rename regs to be closer to specs, turn off
    preemption (Daniele), reuse engine->execlists.elsp (Chris)
v6: use has_logical_ring_elsq to differentiate the new paths
v7: add preemption support, rename els to submit_reg (Chris)
v8: save the ctrl register inside the execlists struct, drop CSB
    handling updates (superseded by preempt_complete_status) (Chris)
v9: s/drm_i915_gem_request/i915_request (Mika)
v10: resolved conflict in inject_preempt_context (Mika)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Thomas Daniel <thomas.daniel@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-4-mika.kuoppala@linux.intel.com
6 years agodrm/i915/icl: new context descriptor support
Daniele Ceraolo Spurio [Fri, 2 Mar 2018 16:14:58 +0000 (18:14 +0200)]
drm/i915/icl: new context descriptor support

Starting from Gen11 the context descriptor format has been updated in
the HW. The hw_id field has been considerably reduced in size and engine
class and instance fields have been added.

There is a slight name clashing issue because the field that we call
hw_id is actually called SW Context ID in the specs for Gen11+.

With the current size of the hw_id field we can have a maximum of 2k
contexts at any time, but we could use the sw_counter field (which is sw
defined) to increase that because the HW requirement is that
engine_id + sw id + sw_counter is a unique number.
GuC uses a similar method to support more contexts but does its tracking
at lrc level. To avoid doing an implementation that will need to be
reworked once GuC support lands, defer it for now and mark it as TODO.

v2: rebased, add documentation, fix GEN11_ENGINE_INSTANCE_SHIFT
v3: rebased, bring back lost code from i915_gem_context.c
v4: make TODO comment more generic
v5: be consistent with bit ordering, add extra checks (Chris)

Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-3-mika.kuoppala@linux.intel.com
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
6 years agodrm/i915/icl: Correctly initialize the Gen11 engines
Oscar Mateo [Fri, 2 Mar 2018 16:14:57 +0000 (18:14 +0200)]
drm/i915/icl: Correctly initialize the Gen11 engines

Gen11 has up to 4 VCS and up to 2 VECS engines, this patch adds mmio
base definitions for all of them.

Bspec: 20944
Bspec: 7021

v2: Set the correct mmio_base in intel_engines_init_mmio; updating the
base mmio values any later would cause incorrect reads in
i915_gem_sanitize (Michel).

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Ceraolo Spurio, Daniele <daniele.ceraolospurio@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302161501.28594-2-mika.kuoppala@linux.intel.com
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
6 years agodrm/i915: Assert that the request is indeed complete when signaled from irq
Chris Wilson [Mon, 5 Mar 2018 10:41:05 +0000 (10:41 +0000)]
drm/i915: Assert that the request is indeed complete when signaled from irq

After we call dma_fence_signal(), confirm that the request was indeed
complete.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305104105.8296-1-chris@chris-wilson.co.uk
6 years agodrm/i915: Handle changing enable_fbc parameter at runtime better.
Maarten Lankhorst [Mon, 5 Mar 2018 12:36:08 +0000 (13:36 +0100)]
drm/i915: Handle changing enable_fbc parameter at runtime better.

If i915.enable_fbc is cleared at runtime, but FBC was previously enabled
then we don't disable FBC until the next time the crtc is disabled.

Make sure that if the module param is changed, we disable FBC in
intel_fbc_post_update so we never have to worry about disabling.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305123608.20665-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
6 years agodrm/i915: Track whether the DP link is trained or not
Ville Syrjälä [Wed, 17 Jan 2018 19:21:49 +0000 (21:21 +0200)]
drm/i915: Track whether the DP link is trained or not

LSPCON likes to throw short HPDs during the enable seqeunce prior to the
link being trained. These obviously result in the channel CR/EQ check
failing and thus we schedule a pointless hotplug work to retrain the
link. Avoid that by ignoring the bad CR/EQ status until we've actually
initially trained the link.

I've not actually investigated to see what LSPCON is trying to signal
with the short pulse. But as long as it signals anything I think we're
supposed to check the link status anyway, so I don't really see other
good ways to solve this. I've not seen these short pulses being
generated by normal DP sinks.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-5-ville.syrjala@linux.intel.com
6 years agodrm/i915: Nuke intel_dp->channel_eq_status
Ville Syrjälä [Wed, 17 Jan 2018 19:21:48 +0000 (21:21 +0200)]
drm/i915: Nuke intel_dp->channel_eq_status

intel_dp->channel_eq_status is used in exactly one function, and we
don't need it to persist between calls. So just go back to using a
local variable instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-4-ville.syrjala@linux.intel.com
6 years agodrm/i915: Move SST DP link retraining into the ->post_hotplug() hook
Ville Syrjälä [Wed, 17 Jan 2018 19:21:47 +0000 (21:21 +0200)]
drm/i915: Move SST DP link retraining into the ->post_hotplug() hook

Doing link retraining from the short pulse handler is problematic since
that might introduce deadlocks with MST sideband processing. Currently
we don't retrain MST links from this code, but we want to change that.
So better to move the entire thing to the hotplug work. We can utilize
the new encoder->hotplug() hook for this.

The only thing we leave in the short pulse handler is the link status
check. That one still depends on the link parameters stored under
intel_dp, so no locking around that but races should be mostly harmless
as the actual retraining code will recheck the link state if we
end up there by mistake.

v2: Rebase due to ->post_hotplug() now being just ->hotplug()
    Check the connector type to figure out if we should do
    the HDMI thing or the DP think for DDI

[pushed with whitespace changes for sparse]
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-3-ville.syrjala@linux.intel.com
6 years agodrm/i915: Reinitialize sink scrambling/TMDS clock ratio on HPD
Ville Syrjälä [Wed, 17 Jan 2018 19:21:46 +0000 (21:21 +0200)]
drm/i915: Reinitialize sink scrambling/TMDS clock ratio on HPD

The LG 4k TV I have doesn't deassert HPD when I turn the TV off, but
when I turn it back on it will pulse the HPD line. By that time it has
forgotten everything we told it about scrambling and the clock ratio.
Hence if we want to get a picture out if it again we have to tell it
whether we're currently sending scrambled data or not. Implement
that via the encoder->hotplug() hook.

v2: Force a full modeset to not follow the HDMI 2.0 spec more
    closely (Shashank)

[pushed with whitespace fixes to make sparse happy]
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-1-ville.syrjala@linux.intel.com
6 years agodrm/i915: Convert intel_hpd_irq_event() into an encoder hotplug hook
Ville Syrjälä [Wed, 17 Jan 2018 19:21:45 +0000 (21:21 +0200)]
drm/i915: Convert intel_hpd_irq_event() into an encoder hotplug hook

Allow encoders to customize their hotplug processing by moving the
intel_hpd_irq_event() code into an encoder hotplug vfunc. Currently
only SDVO needs this to re-enable hotplug signalling in the SDVO
chip. We'll use this same hook for DP/HDMI link management later.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180117192149.17760-1-ville.syrjala@linux.intel.com
6 years agodrm/i915/cnp: Document WaSouthDisplayDisablePWMCGEGating
Rodrigo Vivi [Tue, 6 Mar 2018 01:28:12 +0000 (17:28 -0800)]
drm/i915/cnp: Document WaSouthDisplayDisablePWMCGEGating

No functional change since WA is already applied.
But since it has different names on different databases,
let's document it here to avoid future confusion.

Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306012812.19779-1-rodrigo.vivi@intel.com