Commit Graph

44720 Commits

Author SHA1 Message Date
Arnd Bergmann
fb8baefc7b drm/amdgpu: use %pap format string for phys_addr_t
The newly added get_local_mem_info() function prints a phys_addr_t
using 0x%llx, which is wrong on most 32-bit systems, as shown by
this warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c: In function 'get_local_mem_info':
include/linux/kern_levels.h:5:18: error: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'resource_size_t {aka unsigned int}' [-Werror=format=]
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:297:31: note: format string is defined here
  pr_debug("Address base: 0x%llx limit 0x%llx public 0x%llx private 0x%llx\n",

Passing the address by reference to the special %pap format string will
produce the correct output and avoid the warning.

Fixes: 30f1c0421e ("drm/amdgpu: Implement get_local_mem_info")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-01-09 10:59:28 +10:00
Dave Airlie
6213640fae Merge tag 'drm-misc-next-2018-01-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 4.16:

Cross-subsystem Changes:

- some dt-binding changes for Ilitek and sun4i devices

Core Changes:

- panel_orientation_quirks: fix tainted kernel

Driver Changes:

- panel changes
- A83T and LVDS support to sun4i

* tag 'drm-misc-next-2018-01-08' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/panel: lvds: Add support for the power-supply property
  dt-bindings: panel: lvds: Document power-supply property
  drm/sun4i: Add A83T support
  drm/sun4i: Add LVDS support
  drm/sun4i: Create minimal multipliers and dividers
  drm/sun4i: Force the mixer rate at 150MHz
  dt-bindings: display: sun4i-drm: Add A83T pipeline
  dt-bindings: display: sun4i-drm: Add LVDS properties
  drm/tinydrm: add driver for ST7735R panels
  dt-bindings: Add binding for Sitronix ST7735R display panels
  dt-bindings: add jianda vendor prefix
  drm/tinydrm: Update ILI9225 compatible string
  dt-bindings: update compatible string for ILI9225
  dt-bindings: Add "vot" vendor prefix
  drm: fix tainted kernel caused by drm_panel_orientation_quirks.c
  drm/panel: Add Ilitek ILI9322 driver
  drm/panel: Add DT bindings for Ilitek ILI9322
2018-01-09 10:24:17 +10:00
Dave Airlie
909ef254ee Merge tag 'drm-misc-fixes-2018-01-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Just one vc4 fix.

* tag 'drm-misc-fixes-2018-01-08' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/vc4: Move IRQ enable to PM path
2018-01-09 10:23:48 +10:00
Dave Airlie
bd3c0094a1 Merge branch 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux into drm-next
Last few updates for 4.16:
- Misc fixes for amdgpu
- Enable swapout for reserved BOs during allocation for ttm
- Misc cleanups for ttm

* 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux: (24 commits)
  drm/amdgpu: Correct the IB size of bo update mapping.
  drm/ttm: enable swapout for reserved BOs during allocation
  drm/ttm: add new function to check if bo is allowable to evict or swapout
  drm/ttm: use an operation ctx for ttm_tt_bind
  drm/ttm: use an operation ctx for ttm_tt_populate in ttm_bo_driver (v2)
  drm/ttm: use an operation ctx for ttm_mem_global_alloc_page
  drm/ttm: use an operation ctx for ttm_mem_global_alloc
  drm/ttm: call ttm_bo_swapout directly when ttm shrink
  drm/vmwgfx: remove the default io_mem_pfn set
  drm/virtio: remove the default io_mem_pfn set
  drm/radeon: remove the default io_mem_pfn set
  drm/qxl: remove the default io_mem_pfn set
  drm/nouveau: remove the default io_mem_pfn set
  drm/mgag200: remove the default io_mem_pfn set
  drm/cirrus: remove the default io_mem_pfn set
  drm/bochs: remove the default io_mem_pfn set
  drm/ast: remove the default io_mem_pfn set
  drm/ttm: add ttm_bo_io_mem_pfn to check io_mem_pfn
  drm/amdgpu: fix VM faults with per VM BOs
  drm/ttm: drop the spin in delayed delete if the trylock doesn't work
  ...
2018-01-09 10:09:13 +10:00
Sean Paul
20f24d776d drm/i915: Implement HDCP for DisplayPort
This patch adds HDCP support for DisplayPort connectors by implementing
the intel_hdcp_shim.

Most of this is straightforward read/write from/to DPCD registers. One
thing worth pointing out is the Aksv output bit. It wasn't easily
separable like it's HDMI counterpart, so it's crammed in with the rest
of it.

Changes in v2:
- Moved intel_hdcp_check_link out of intel_dp_check_link and only call
  it on short pulse. Since intel_hdcp_check_link does its own locking,
  this ensures we don't deadlock when intel_dp_check_link is called
  holding connection_mutex.
- Rebased on drm-intel-next
Changes in v3:
- Initialize new worker
Changes in v4:
- Use intel_hdcp_init (Daniel)
- Check for reauth requests in check_link (Ram)
Changes in v5:
- None
Changes in v6:
- Fix build warnings when printing ssize_t

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-10-seanpaul@chromium.org
2018-01-08 14:58:44 -05:00
Sean Paul
2320175feb drm/i915: Implement HDCP for HDMI
This patch adds HDCP support for HDMI connectors by implementing
the intel_hdcp_shim.

Nothing too special, just a bunch of DDC reads/writes.

Changes in v2:
- Rebased on drm-intel-next
Changes in v3:
- Initialize new worker
Changes in v4:
- Remove SKL_ prefix from most register names (Daniel)
- Wrap sanity checks in WARN_ON (Daniel)
- Consolidate the enable/disable functions into one toggle fn
- Use intel_hdcp_init (Daniel)
Changes in v5:
- checkpatch whitespace nits
Changes in v6:
- None

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-9-seanpaul@chromium.org
2018-01-08 14:58:36 -05:00
Sean Paul
07e17a7592 drm/i915: Add function to output Aksv over GMBUS
Once the Aksv is available in the PCH, we need to get it on the wire to
the receiver via DDC. The hardware doesn't allow us to read the value
directly, so we need to tell GMBUS to source the Aksv internally and
send it to the right offset on the receiver.

The way we do this is to initiate an indexed write where the index is
the Aksv register offset. We write dummy values to GMBUS3 as if we were
sending the key, and the hardware slips in the "real" values when it
goes out.

Changes in v2:
- None
Changes in v3:
- Uses new index write feature (Ville)
Changes in v4:
- None
Changes in v5:
- checkpatch whitespace fix
Changes in v6:
- None

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-8-seanpaul@chromium.org
2018-01-08 14:58:29 -05:00
Sean Paul
d02cf0a4f4 drm/i915: Make use of indexed write GMBUS feature
This patch enables the indexed write feature of the GMBUS to concatenate
2 consecutive messages into one. The criteria for an indexed write is
that both messages are writes, the first is length == 1, and the second
is length > 0. The first message is sent out by the GMBUS as the slave
command, and the second one is sent via the GMBUS FIFO as usual.

Changes in v3:
- Added to series
Changes in v4:
- Combine indexed reads and writes (Ville)
Changes in v5:
- checkpatch whitespace nits
Changes in v6:
- None

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-7-seanpaul@chromium.org
2018-01-08 14:58:24 -05:00
Sean Paul
ee5e5e7a5e drm/i915: Add HDCP framework + base implementation
This patch adds the framework required to add HDCP support to intel
connectors. It implements Aksv loading from fuse, and parts 1/2/3
of the HDCP authentication scheme.

Note that without shim implementations, this does not actually implement
HDCP. That will come in subsequent patches.

Changes in v2:
- Don't open code wait_fors (Chris)
- drm_hdcp.c under MIT license (Daniel)
- Move intel_hdcp_disable() call above ddi_disable (Ram)
- Fix // comments (I wore a cone of shame for 12 hours to atone) (Daniel)
- Justify intel_hdcp_shim with comments (Daniel)
- Fixed async locking issues by adding hdcp_mutex (Daniel)
- Don't alter connector_state in enable/disable (Daniel)
Changes in v3:
- Added hdcp_mutex/hdcp_value to make async reasonable
- Added hdcp_prop_work to separate link checking & property setting
- Added new helper for atomic_check state tracking (Daniel)
- Moved enable/disable into atomic_commit with matching helpers
- Moved intel_hdcp_check_link out of all locks when called from dp
- Bumped up ksv_fifo timeout (noticed failure on one of my dongles)
Changes in v4:
- Remove SKL_ prefix from most register names (Daniel)
- Move enable/disable back to modeset path (Daniel)
- s/get_random_long/get_random_u32/ (Daniel)
- Remove mode_config.mutex lock in prop_work (Daniel)
- Add intel_hdcp_init to handle init of conn components (Daniel)
- Actually check return value of attach_property
- Check Bksv is valid before trying to authenticate (Ram)
Changes in v5:
- checkpatch whitespace changes
- s/DRM_MODE_CONTENT_PROTECTION_OFF/DRM_MODE_CONTENT_PROTECTION_UNDESIRED/
- Fix ksv list wait timeout (actually wait 5s)
- Increase the R0 timeout to 300ms (Ram)
Changes in v6:
- SPDX license

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ramalingam C <ramalingm.c@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-6-seanpaul@chromium.org
2018-01-08 14:58:02 -05:00
Sean Paul
24557865c8 drm: Add Content Protection property
This patch adds a new optional connector property to allow userspace to enable
protection over the content it is displaying. This will typically be implemented
by the driver using HDCP.

The property is a tri-state with the following values:
- OFF: Self explanatory, no content protection
- DESIRED: Userspace requests that the driver enable protection
- ENABLED: Once the driver has authenticated the link, it sets this value

The driver is responsible for downgrading ENABLED to DESIRED if the link becomes
unprotected. The driver should also maintain the desiredness of protection
across hotplug/dpms/suspend.

If this looks familiar, I posted [1] this 3 years ago. We have been using this
in ChromeOS across exynos, mediatek, and rockchip over that time.

Changes in v2:
 - Pimp kerneldoc for content_protection_property (Daniel)
 - Drop sysfs attribute
Changes in v3:
 - None
Changes in v4:
- Changed kerneldoc to recommend userspace polling (Daniel)
- Changed kerneldoc to briefly describe how to attach the property (Daniel)
Changes in v5:
- checkpatch whitespace noise
- Change DRM_MODE_CONTENT_PROTECTION_OFF to DRM_MODE_CONTENT_PROTECTION_UNDESIRED
Changes in v6:
- None

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>

[1] https://lists.freedesktop.org/archives/dri-devel/2014-December/073336.html
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-4-seanpaul@chromium.org
2018-01-08 14:57:41 -05:00
Sean Paul
23fdbdd7ed drm/i915: Add more control to wait_for routines
This patch adds a little more control to a couple wait_for routines such
that we can avoid open-coding read/wait/timeout patterns which:
 - need the value of the register after the wait_for
 - run arbitrary operation for the read portion

This patch also chooses the correct sleep function (based on
timers-howto.txt) for the polling interval the caller specifies.

Changes in v2:
- Added to the series
Changes in v3:
- Rebased on drm-intel-next-queued and the new Wmin/max _wait_for
- Removed msleep option
Changes in v4:
- Removed ; for OP in _wait_for (Chris)
- Moved reg_value definition above ret (Chris)
Changes in v4:
- checkpatch whitespace fix
Changes in v5:
- None
Changes in v6:
- None

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-3-seanpaul@chromium.org
2018-01-08 14:57:22 -05:00
Sean Paul
716719a3e6 drm: Fix link-status kerneldoc line lengths
I'm adding some stuff below it and it's killing my editor's vibe.

Changes in v2:
- Added to the series
Changes in v3:
- None
Changes in v4:
- None
Changes in v5:
- None
Changes in v6:
- None

Cc: Manasi Navare <manasi.d.navare@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-2-seanpaul@chromium.org
2018-01-08 14:57:17 -05:00
Thierry Reding
8f62142e49 drm/tegra: dc: Properly cleanup overlay planes
The first overlay plane can leak if initialization of the second overlay
plane fails. Fix this by properly destroying the first overlay plane on
error.

Suggested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-01-08 16:24:13 +01:00
Thierry Reding
89f6501825 drm/tegra: dc: Fix possible_crtcs mask for planes
Cursor and overlay planes use a possible_crtcs mask based on the DC pipe
number. However, DRM requires each bit in the mask to correspond to the
index of the CRTC, which will be different from the DC pipe number for a
configuration where the first display controller is disabled, or where a
deferred probe leads to the first display controller being probed after
the first.

Suggested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-01-08 16:24:05 +01:00
Thierry Reding
5467a8b8da drm/tegra: dc: Restore YUV overlay support
Commit ebae8d0743 ("drm/tegra: dc: Implement legacy blending") broke
support for YUV overlays by accident. The reason is that YUV formats are
considered opaque because they have no alpha component, but on the other
hand no corresponding format with an alpha component can be returned. In
the case of YUV formats, the opaque format is the same as the alpha
format, so add the special case to restore YUV overlay support.

Reported-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-01-08 13:44:17 +01:00
Jani Nikula
67c3f3fc02 Merge tag 'gvt-fixes-2018-01-08' of https://github.com/intel/gvt-linux into drm-intel-fixes
gvt-fixes-2018-01-08

- clear shadow entry for post-sync (Zhi)
- fix stack out-of-bound warning in cmd parser (Changbin)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180108061130.ucwtumhpbfbu4psu@zhen-hp.sh.intel.com
2018-01-08 13:30:09 +02:00
Chris Wilson
c218ee03b9 drm/i915: Don't adjust priority on an already signaled fence
When we retire a signaled fence, we free the dependency tree. However,
we skip clearing the list so that if we then try to adjust the priority
of the signaled fence, we may walk the list of freed dependencies.

[ 3083.156757] ==================================================================
[ 3083.156806] BUG: KASAN: use-after-free in execlists_schedule+0x199/0x660 [i915]
[ 3083.156810] Read of size 8 at addr ffff8806bf20f400 by task Xorg/831

[ 3083.156815] CPU: 0 PID: 831 Comm: Xorg Not tainted 4.15.0-rc6-no-psn+ #1
[ 3083.156817] Hardware name: Notebook                         N24_25BU/N24_25BU, BIOS 5.12 02/17/2017
[ 3083.156818] Call Trace:
[ 3083.156823]  dump_stack+0x5c/0x7a
[ 3083.156827]  print_address_description+0x6b/0x290
[ 3083.156830]  kasan_report+0x28f/0x380
[ 3083.156872]  ? execlists_schedule+0x199/0x660 [i915]
[ 3083.156914]  execlists_schedule+0x199/0x660 [i915]
[ 3083.156956]  ? intel_crtc_atomic_check+0x146/0x4e0 [i915]
[ 3083.156997]  ? execlists_submit_request+0xe0/0xe0 [i915]
[ 3083.157038]  ? i915_vma_misplaced.part.4+0x25/0xb0 [i915]
[ 3083.157079]  ? __i915_vma_do_pin+0x7c8/0xc80 [i915]
[ 3083.157121]  ? intel_atomic_state_alloc+0x44/0x60 [i915]
[ 3083.157130]  ? drm_atomic_helper_page_flip+0x3e/0xb0 [drm_kms_helper]
[ 3083.157145]  ? drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
[ 3083.157159]  ? drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157172]  ? drm_ioctl+0x45b/0x560 [drm]
[ 3083.157211]  i915_gem_object_wait_priority+0x14c/0x2c0 [i915]
[ 3083.157251]  ? i915_gem_get_aperture_ioctl+0x150/0x150 [i915]
[ 3083.157290]  ? i915_vma_pin_fence+0x1d8/0x320 [i915]
[ 3083.157331]  ? intel_pin_and_fence_fb_obj+0x175/0x250 [i915]
[ 3083.157372]  ? intel_rotation_info_size+0x60/0x60 [i915]
[ 3083.157413]  ? intel_link_compute_m_n+0x80/0x80 [i915]
[ 3083.157428]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
[ 3083.157443]  ? drm_dev_printk+0x1b0/0x1b0 [drm]
[ 3083.157485]  intel_prepare_plane_fb+0x2f8/0x5a0 [i915]
[ 3083.157527]  ? intel_crtc_get_vblank_counter+0x80/0x80 [i915]
[ 3083.157536]  drm_atomic_helper_prepare_planes+0xa0/0x1c0 [drm_kms_helper]
[ 3083.157587]  intel_atomic_commit+0x12e/0x4e0 [i915]
[ 3083.157605]  drm_atomic_helper_page_flip+0xa2/0xb0 [drm_kms_helper]
[ 3083.157621]  drm_mode_page_flip_ioctl+0x7d2/0x850 [drm]
[ 3083.157638]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157652]  ? drm_lease_owner+0x1a/0x30 [drm]
[ 3083.157668]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157681]  drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157696]  drm_ioctl+0x45b/0x560 [drm]
[ 3083.157711]  ? drm_mode_cursor2_ioctl+0x10/0x10 [drm]
[ 3083.157725]  ? drm_getstats+0x20/0x20 [drm]
[ 3083.157729]  ? timerqueue_del+0x49/0x80
[ 3083.157732]  ? __remove_hrtimer+0x62/0xb0
[ 3083.157735]  ? hrtimer_try_to_cancel+0x173/0x210
[ 3083.157738]  do_vfs_ioctl+0x13b/0x880
[ 3083.157741]  ? ioctl_preallocate+0x140/0x140
[ 3083.157744]  ? _raw_spin_unlock_irq+0xe/0x30
[ 3083.157746]  ? do_setitimer+0x234/0x370
[ 3083.157750]  ? SyS_setitimer+0x19e/0x1b0
[ 3083.157752]  ? SyS_alarm+0x140/0x140
[ 3083.157755]  ? __rcu_read_unlock+0x66/0x80
[ 3083.157757]  ? __fget+0xc4/0x100
[ 3083.157760]  SyS_ioctl+0x74/0x80
[ 3083.157763]  entry_SYSCALL_64_fastpath+0x1a/0x7d
[ 3083.157765] RIP: 0033:0x7f6135d0c6a7
[ 3083.157767] RSP: 002b:00007fff01451888 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
[ 3083.157769] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6135d0c6a7
[ 3083.157771] RDX: 00007fff01451950 RSI: 00000000c01864b0 RDI: 000000000000000c
[ 3083.157772] RBP: 00007f613076f600 R08: 0000000000000001 R09: 0000000000000000
[ 3083.157773] R10: 0000000000000060 R11: 0000000000003246 R12: 0000000000000000
[ 3083.157774] R13: 0000000000000060 R14: 000000000000001b R15: 0000000000000060

[ 3083.157779] Allocated by task 831:
[ 3083.157783]  kmem_cache_alloc+0xc0/0x200
[ 3083.157822]  i915_gem_request_await_dma_fence+0x2c4/0x5d0 [i915]
[ 3083.157861]  i915_gem_request_await_object+0x321/0x370 [i915]
[ 3083.157900]  i915_gem_do_execbuffer+0x1165/0x19c0 [i915]
[ 3083.157937]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
[ 3083.157950]  drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.157962]  drm_ioctl+0x45b/0x560 [drm]
[ 3083.157964]  do_vfs_ioctl+0x13b/0x880
[ 3083.157966]  SyS_ioctl+0x74/0x80
[ 3083.157968]  entry_SYSCALL_64_fastpath+0x1a/0x7d

[ 3083.157971] Freed by task 831:
[ 3083.157973]  kmem_cache_free+0x77/0x220
[ 3083.158012]  i915_gem_request_retire+0x72c/0xa70 [i915]
[ 3083.158051]  i915_gem_request_alloc+0x1e9/0x8b0 [i915]
[ 3083.158089]  i915_gem_do_execbuffer+0xa96/0x19c0 [i915]
[ 3083.158127]  i915_gem_execbuffer2+0x1ad/0x550 [i915]
[ 3083.158140]  drm_ioctl_kernel+0xa7/0xf0 [drm]
[ 3083.158153]  drm_ioctl+0x45b/0x560 [drm]
[ 3083.158155]  do_vfs_ioctl+0x13b/0x880
[ 3083.158156]  SyS_ioctl+0x74/0x80
[ 3083.158158]  entry_SYSCALL_64_fastpath+0x1a/0x7d

[ 3083.158162] The buggy address belongs to the object at ffff8806bf20f400
                which belongs to the cache i915_dependency of size 64
[ 3083.158166] The buggy address is located 0 bytes inside of
                64-byte region [ffff8806bf20f400, ffff8806bf20f440)
[ 3083.158168] The buggy address belongs to the page:
[ 3083.158171] page:00000000d43decc4 count:1 mapcount:0 mapping:          (null) index:0x0
[ 3083.158174] flags: 0x17ffe0000000100(slab)
[ 3083.158179] raw: 017ffe0000000100 0000000000000000 0000000000000000 0000000180200020
[ 3083.158182] raw: ffffea001afc16c0 0000000500000005 ffff880731b881c0 0000000000000000
[ 3083.158184] page dumped because: kasan: bad access detected

[ 3083.158187] Memory state around the buggy address:
[ 3083.158190]  ffff8806bf20f300: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158192]  ffff8806bf20f380: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158195] >ffff8806bf20f400: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158196]                    ^
[ 3083.158199]  ffff8806bf20f480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158201]  ffff8806bf20f500: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 3083.158203] ==================================================================

Reported-by: Alexandru Chirvasitu <achirvasub@gmail.com>
Reported-by: Mike Keehan <mike@keehan.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104436
Fixes: 1f181225f8 ("drm/i915/execlists: Keep request->priority for its lifetime")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Alexandru Chirvasitu <achirvasub@gmail.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Tested-by: Alexandru Chirvasitu <achirvasub@gmail.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180106105618.13532-1-chris@chris-wilson.co.uk
2018-01-08 09:16:02 +00:00
Changbin Du
65e7439204 drm/i915/gvt: Fix stack-out-of-bounds bug in cmd parser
for_each_set_bit() only accepts variable of type unsigned long, and we can
not cast it from smaller types.

[   16.499365] ==================================================================
[   16.506655] BUG: KASAN: stack-out-of-bounds in find_first_bit+0x1d/0x70
[   16.513313] Read of size 8 at addr ffff8803616cf510 by task systemd-udevd/180
[   16.521998] CPU: 0 PID: 180 Comm: systemd-udevd Tainted: G     U     O     4.15.0-rc3+ #14
[   16.530317] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.2.8 01/26/2016
[   16.537760] Call Trace:
[   16.540230]  dump_stack+0x7c/0xbb
[   16.543569]  print_address_description+0x6b/0x290
[   16.548306]  kasan_report+0x28a/0x370
[   16.551993]  ? find_first_bit+0x1d/0x70
[   16.555858]  find_first_bit+0x1d/0x70
[   16.559625]  intel_gvt_init_cmd_parser+0x127/0x3c0 [i915]
[   16.565060]  ? __lock_is_held+0x8f/0xf0
[   16.568990]  ? intel_gvt_clean_cmd_parser+0x10/0x10 [i915]
[   16.574514]  ? __hrtimer_init+0x5d/0xb0
[   16.578445]  intel_gvt_init_device+0x2c3/0x690 [i915]
[   16.583537]  ? unregister_module_notifier+0x20/0x20
[   16.588515]  intel_gvt_init+0x89/0x100 [i915]
[   16.592962]  i915_driver_load+0x1992/0x1c70 [i915]
[   16.597846]  ? __i915_printk+0x210/0x210 [i915]
[   16.602410]  ? wait_for_completion+0x280/0x280
[   16.606883]  ? lock_downgrade+0x2c0/0x2c0
[   16.610923]  ? __pm_runtime_resume+0x46/0x90
[   16.615238]  ? acpi_dev_found+0x76/0x80
[   16.619162]  ? i915_pci_remove+0x30/0x30 [i915]
[   16.623733]  local_pci_probe+0x74/0xe0
[   16.627518]  pci_device_probe+0x208/0x310
[   16.631561]  ? pci_device_remove+0x100/0x100
[   16.635871]  ? __list_add_valid+0x29/0xa0
[   16.639919]  driver_probe_device+0x40b/0x6b0
[   16.644223]  ? driver_probe_device+0x6b0/0x6b0
[   16.648696]  __driver_attach+0x11d/0x130
[   16.652649]  bus_for_each_dev+0xe7/0x160
[   16.656600]  ? subsys_dev_iter_exit+0x10/0x10
[   16.660987]  ? __list_add_valid+0x29/0xa0
[   16.665028]  bus_add_driver+0x31d/0x3a0
[   16.668893]  driver_register+0xc6/0x170
[   16.672758]  ? 0xffffffffc0ad8000
[   16.676108]  do_one_initcall+0x9c/0x206
[   16.679984]  ? initcall_blacklisted+0x150/0x150
[   16.684545]  ? do_init_module+0x35/0x33b
[   16.688494]  ? kasan_unpoison_shadow+0x31/0x40
[   16.692968]  ? kasan_kmalloc+0xa6/0xd0
[   16.696743]  ? do_init_module+0x35/0x33b
[   16.700694]  ? kasan_unpoison_shadow+0x31/0x40
[   16.705168]  ? __asan_register_globals+0x82/0xa0
[   16.709819]  do_init_module+0xe7/0x33b
[   16.713597]  load_module+0x4481/0x4ce0
[   16.717397]  ? module_frob_arch_sections+0x20/0x20
[   16.722228]  ? vfs_read+0x13b/0x190
[   16.725742]  ? kernel_read+0x74/0xa0
[   16.729351]  ? get_user_arg_ptr.isra.17+0x70/0x70
[   16.734099]  ? SYSC_finit_module+0x175/0x1b0
[   16.738399]  SYSC_finit_module+0x175/0x1b0
[   16.742524]  ? SYSC_init_module+0x1e0/0x1e0
[   16.746741]  ? __fget+0x157/0x240
[   16.750090]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   16.754747]  entry_SYSCALL_64_fastpath+0x23/0x9a
[   16.759397] RIP: 0033:0x7f8fbc837499
[   16.762996] RSP: 002b:00007ffead76c138 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   16.770618] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f8fbc837499
[   16.777800] RDX: 0000000000000000 RSI: 000056484e67b080 RDI: 0000000000000012
[   16.784979] RBP: 00007ffead76b140 R08: 0000000000000000 R09: 0000000000000021
[   16.792164] R10: 0000000000000012 R11: 0000000000000246 R12: 000056484e67b460
[   16.799345] R13: 00007ffead76b120 R14: 0000000000000005 R15: 0000000000000000
[   16.808052] The buggy address belongs to the page:
[   16.812876] page:00000000dc4b8c1e count:0 mapcount:0 mapping:          (null) index:0x0
[   16.820934] flags: 0x17ffffc0000000()
[   16.824621] raw: 0017ffffc0000000 0000000000000000 0000000000000000 00000000ffffffff
[   16.832416] raw: ffffea000d85b3e0 ffffea000d85b3e0 0000000000000000 0000000000000000
[   16.840208] page dumped because: kasan: bad access detected
[   16.847318] Memory state around the buggy address:
[   16.852143]  ffff8803616cf400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.859427]  ffff8803616cf480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1
[   16.866708] >ffff8803616cf500: f1 f1 04 f4 f4 f4 f3 f3 f3 f3 00 00 00 00 00 00
[   16.873988]                          ^
[   16.877770]  ffff8803616cf580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.885042]  ffff8803616cf600: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1
[   16.892312] ==================================================================

Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2018-01-08 12:01:11 +08:00
Kenneth Graunke
ab062639ed drm/i915: Whitelist SLICE_COMMON_ECO_CHICKEN1 on Geminilake.
Geminilake requires the 3D driver to select whether barriers are
intended for compute shaders, or tessellation control shaders, by
whacking a "Barrier Mode" bit in SLICE_COMMON_ECO_CHICKEN1 when
switching pipelines.  Failure to do this properly can result in GPU
hangs.

Unfortunately, this means it needs to switch mid-batch, so only
userspace can properly set it.  To facilitate this, the kernel needs
to whitelist the register.

The workarounds page currently tags this as applying to Broxton only,
but that doesn't make sense.  The documentation for the register it
references says the bit userspace is supposed to toggle only exists on
Geminilake.  Empirically, the Mesa patch to toggle this bit appears to
fix intermittent GPU hangs in tessellation control shader barrier tests
on Geminilake; we haven't seen those hangs on Broxton.

v2: Mention WA #0862 in the comment (it doesn't have a name).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180105085905.9298-1-kenneth@whitecape.org
2018-01-05 09:42:33 -08:00
Maxime Ripard
a1c55bccf6 drm/panel: lvds: Add support for the power-supply property
A significant number of panels need to power up a regulator in order to
operate properly. Add support for the power-supply property to enable and
disable such a regulator whenever needed.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0c0819bdf88fa948188df95e57a10820a8a4548d.1513854122.git-series.maxime.ripard@free-electrons.com
2018-01-05 10:00:14 +01:00
Dave Airlie
b0caa1333b Merge tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux into drm-next
drm/imx: format modifier support

- Add tiled prefetch support to PRE
- Add format modifier support to PRG and imx-drm-core
- Use runtime PM to control PRG clock
- Allow building ipu-v3 under COMPILE_TEST

* tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux:
  gpu: ipu-v3: allow to build with COMPILE_TEST
  drm/imx: advertise supported plane format modifiers
  drm/imx: add FB modifier support
  gpu: ipu-v3: prg: add modifier support
  gpu: ipu-v3: pre: add tiled prefetch support
  gpu: ipu-v3: prg: switch to runtime PM
2018-01-05 11:33:24 +10:00
Anusha Srivatsa
fe9a9da61c drm/i915/dmc: DMC 1.07 for Cannonlake
There is a new version of DMC available for CNL.

The release notes mentions:
1. Fix for the issue where DC_STATE was getting enabled
even when disabled by driver causing data corruption

v2: Since the firmware is  merged to linux-firmware.git,
add MODULE_FIRMWARE.

v3: rebased. Correct commit message(Jani)

Cc: Jani Saarinen <jani.saarinen@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1515109902-14076-1-git-send-email-anusha.srivatsa@intel.com
2018-01-04 16:29:12 -08:00
Dave Airlie
bcd21a4786 Merge branch 'drm-armada-devel-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next
This series builds upon the set of fixes previously submitted to move
Armada DRM closer to atomic modeset.  We're nowhere near yet, but this
series helps to get us closer by unifying some of the differences
between the primary and overlay planes.

New features added allows userspace to disable the primary plane if
overlay is full screen and there's nothing obscuring the colorkey -
this saves having to fetch an entire buffer containing nothing but
colorkey when displaying full screen video.

[airlied: fixup for atomic plane helper rename:
a01cb8ba3f
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Nov 1 22:16:19 2017 +0200

    drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
]

* 'drm-armada-devel-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm: (29 commits)
  drm/armada: expand overlay trace entry
  drm/armada: implement primary plane update
  drm/armada: extract register generation from armada_drm_primary_set()
  drm/armada: wait for previous work when moving overlay window
  drm/armada: move overlay plane register update generation
  drm/armada: re-organise overlay register update generation
  drm/armada: disable planes at next blanking period
  drm/armada: avoid work allocation
  drm/armada: allow armada_drm_plane_work_queue() to silently fail
  drm/armada: use drm_plane_helper_check_state()
  drm/armada: only enable HSMOOTH if scaling horizontally
  drm/armada: move writes of LCD_SPU_SRAM_PARA1 under lock
  drm/armada: move regs into armada_plane_work
  drm/armada: move event sending into armada_plane_work
  drm/armada: move fb retirement into armada_plane_work
  drm/armada: move overlay plane work out from under spinlock
  drm/armada: clear plane enable bit when disabling
  drm/armada: clean up armada_drm_crtc_plane_disable()
  drm/armada: allow the primary plane to be disabled
  drm/armada: wait and cancel any pending frame work at disable
  ...
2018-01-05 09:51:43 +10:00
Dave Airlie
066f9eb47d Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
Highlights this time:
1. Fix for a nasty Kconfig dependency chain issue from Philipp.
2. Occlusion query buffer address added to the cmdstream validator by
Christian.
3. Fixes and cleanups to the job handling from me. This allows us to
turn on the GPU performance profiling added in the last cycle.
It is also prep work for hooking in the DRM GPU scheduler, which I hope
to land for the next cycle.

* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (32 commits)
  drm/etnaviv: use memset32 to init pagetable
  drm/etnaviv: move submit free out of critical section
  drm/etnaviv: re-enable perfmon support
  drm/etnaviv: couple runtime PM management to submit object lifetime
  drm/etnaviv: move GPU active handling to bo pin/unpin
  drm/etnaviv: move cmdbuf into submit object
  drm/etnaviv: use submit exec_state for perfmon sampling
  drm/etnaviv: move exec_state to submit object
  drm/etnaviv: move PMRs to submit object
  drm/etnaviv: refcount the submit object
  drm/etnaviv: move ww_acquire_ctx out of submit object
  drm/etnaviv: move object unpinning to submit cleanup
  drm/etnaviv: attach in fence to submit and move fence wait to fence_sync
  drm/etnaviv: rename submit fence to out_fence
  drm/etnaviv: move object fence attachment to gem_submit path
  drm/etnaviv: simplify submit_create
  drm/etnaviv: add lockdep annotations to buffer manipulation functions
  drm/etnaviv: hold GPU lock while inserting END command
  drm/etnaviv: move workqueue to be per GPU
  drm/etnaviv: remove switch_context member from etnaviv_gpu
  ...
2018-01-05 09:42:04 +10:00
Dave Airlie
4ef0bef2ec Merge tag 'exynos-drm-next-for-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Remove lagacy IPP driver
- This driver isn't used anymore so remove it. Marek is preparing new one
  which includes completely rewritten API so this driver will be replaced
  with the new version[1] later.
And cleanups.

[1] https://patches.linaro.org/cover/118386/

* tag 'exynos-drm-next-for-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: ipp: Remove Exynos DRM IPP subsystem
  drm/exynos/decon: Add include guard to the Exynos7 header
  drm/exynos/decon: Move headers from global to local place
  drm/exynos: decon5433: Remove unnecessary platform_get_resource() error check
2018-01-05 09:29:20 +10:00
Dave Airlie
a9742b794a Merge tag 'drm-amdkfd-next-2017-12-24' of git://people.freedesktop.org/~gabbayo/linux into drm-next
- Add CWSR (compute wave save restore) support for GFX8 (Carrizo)
- Fix SDMA user-mode queues support for GFX7 (Kaveri)
- Add SDMA user-mode queues support for GFX8 (Carrizo)
- Allow HWS (hardware scheduling) to schedule multiple processes concurrently
- Add debugfs support
- Simplify process locking and lock dependencies
- Refactoring topology code to prepare for dGPU support + fixes to that code
  - Add option to generate dummy/virtual CRAT table when its missing or deformed
  - Recognize CPUs other then APUs as compute entities
- Various clean ups and bug fixes

I have not yet sent the dGPU topology code because it depends on a patch
for the PCI subsystem that adds PCIe atomics support. Once that patch is
upstreamed we can continue with the rest of the dGPU code.

* tag 'drm-amdkfd-next-2017-12-24' of git://people.freedesktop.org/~gabbayo/linux: (53 commits)
  drm/amdgpu: Add support for reporting VRAM usage
  drm/amdkfd: Ignore ACPI CRAT for non-APU systems
  drm/amdkfd: Module option to disable CRAT table
  drm/amdkfd: Add AQL Queue Memory flag on topology
  drm/amdkfd: Fixup incorrect info in the CZ CRAT table
  drm/amdkfd: Add perf counters to topology
  drm/amdkfd: Add topology support for dGPUs
  drm/amdkfd: Add topology support for CPUs
  drm/amdkfd: Fix sibling_map[] size
  drm/amdkfd: Simplify counting of memory banks
  drm/amdkfd: Turn verbose topology messages into pr_debug
  drm/amdkfd: sync IOLINK defines to thunk spec
  drm/amdkfd: Support enumerating non-GPU devices
  drm/amdkfd: Decouple CRAT parsing from device list update
  drm/amdkfd: Reorganize CRAT fetching from ACPI
  drm/amdkfd: Group up CRAT related functions
  drm/amdkfd: Fix memory leaks in kfd topology
  drm/amdkfd: Topology: Fix location_id
  drm/amdkfd: Update number of compute unit from KGD
  drm/amd: Remove get_vmem_size from KGD-KFD interface
  ...
2018-01-05 09:27:49 +10:00
Dave Airlie
bc6fe53327 Merge tag 'drm-intel-fixes-2018-01-04' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v4.15-rc7
- couple of documentation build fixes
- serialize non-blocking modesets
- prevent DMC from messing up GMBUS transfers
- PSR regression fix

* tag 'drm-intel-fixes-2018-01-04' of git://anongit.freedesktop.org/drm/drm-intel:
  drm/i915: Apply Display WA #1183 on skl, kbl, and cfl
  docs: fix, intel_guc_loader.c has been moved to intel_guc_fw.c
  documentation/gpu/i915: fix docs build error after file rename
  drm/i915: Put all non-blocking modesets onto an ordered wq
  drm/i915: Disable DC states around GMBUS on GLK
  drm/i915/psr: Fix register name mess up.
2018-01-05 09:25:01 +10:00
Dave Airlie
0007b9cad7 Merge branch 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
- backport of a DC change which fixes a greenish tint on some RV hw
- properly handle kzalloc fail in ttm

* 'drm-fixes-4.15' of git://people.freedesktop.org/~agd5f/linux:
  drm/ttm: check the return value of kzalloc
  drm/amd/display: call set csc_default if enable adjustment is false
2018-01-05 09:24:26 +10:00
Dave Airlie
dc042da05f Merge branch 'drm-armada-fixes-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes
Armada fixes.

* 'drm-armada-fixes-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm:
  drm/armada: fix YUV planar format framebuffer offsets
  drm/armada: improve efficiency of armada_drm_plane_calc_addrs()
  drm/armada: fix UV swap code
  drm/armada: fix SRAM powerdown
  drm/armada: fix leak of crtc structure
2018-01-05 09:24:05 +10:00
Anusha Srivatsa
a76050a483 drm/i915/glk: Disable Guc and HuC on GLK
Since the firmwares are not yet released to public repo,
disable them on Geminilake.

v2: Remove the firmware versions (Michal)

v3: Remove unwanted defines (Rodrigo)
Correct commit message (Michal)

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Fixes: 90f192c824 ("drm/i915/GuC/GLK: Load GuC on GLK")
Fixes: db5ba0d893 ("drm/i915/GLK/HuC: Load HuC on GLK")
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1515006225-13003-1-git-send-email-anusha.srivatsa@intel.com
2018-01-04 14:45:07 -08:00
Maxime Ripard
2f0d7bb16e drm/sun4i: Add A83T support
Add support for the A83T display pipeline.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/614b430adf3a67320362a75c01b01bd53013da8a.1513854122.git-series.maxime.ripard@free-electrons.com
2018-01-04 20:37:59 +01:00
Maxime Ripard
a0c1214e47 drm/sun4i: Add LVDS support
The TCON supports the LVDS interface to output to a panel or a bridge.
Let's add support for it.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7fbb85f33ee1d5009fde4f0d7d236e11ca58b114.1513854122.git-series.maxime.ripard@free-electrons.com
2018-01-04 20:37:17 +01:00
Maxime Ripard
ec08d5966b drm/sun4i: Create minimal multipliers and dividers
The various outputs the TCON can provide have different constraints on the
dotclock divider. Let's make them configurable by the various mode_set
functions.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/92ff5881c8f8674056d34458b2f264cd48d4e136.1513854122.git-series.maxime.ripard@free-electrons.com
2018-01-04 20:08:42 +01:00
Maxime Ripard
edea372bd2 drm/sun4i: Force the mixer rate at 150MHz
It seems like the mixer can only run properly when clocked at 150MHz. In
order to have something more robust than simply a fire-and-forget
assigned-clocks-rate, let's put that in the code.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f5f05307972ed05250e8094b302d68b9e7e167f6.1513854122.git-series.maxime.ripard@free-electrons.com
2018-01-04 20:04:32 +01:00
Chris Wilson
82e07602d2 drm/i915: Pass DMA_ATTR_NO_WARN to dma_map_sg()
In some iommu, e.g. swiotlb, the available space can be quite limited.
So we employ a trial-and-error approach to seeing if our large
contiguous chunks can fit, and if that fails we try again with smaller
chunks after trying to free our own lazily allocated blobs. As we use a
trial-and-error approach, we do not want dma_map_sg() to emit a WARN of
its own accord, we want to gracefully report the error back to the caller
instead.

Note that our noisy culprit, swiotlb, doesn't honour the flag, yet.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180104163842.11635-1-chris@chris-wilson.co.uk
2018-01-04 18:48:53 +00:00
Lucas De Marchi
30414f3010 drm/i915: Apply Display WA #1183 on skl, kbl, and cfl
Display WA #1183 was recently added to workaround
"Failures when enabling DPLL0 with eDP link rate 2.16
or 4.32 GHz and CD clock frequency 308.57 or 617.14 MHz
(CDCLK_CTL CD Frequency Select 10b or 11b) used in this
 enabling or in previous enabling."

This workaround was designed to minimize the impact only
to save the bad case with that link rates. But HW engineers
indicated that it should be safe to apply broadly, although
they were expecting the DPLL0 link rate to be unchanged on
runtime.

We need to cover 2 cases: when we are in fact enabling DPLL0
and when we are just changing the frequency with small
differences.

This is based on previous patch by Rodrigo Vivi with suggestions
from Ville Syrjälä.

Cc: Arthur J Runyan <arthur.j.runyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171204232210.4958-1-lucas.demarchi@intel.com
(cherry picked from commit 53421c2fe9)
[ Lucas: Backport to 4.15 adding back variable that has been removed on
  commits not meant to be backported ]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102201837.6812-1-lucas.demarchi@intel.com
2018-01-04 14:39:08 +02:00
Zhi Wang
121d760d07 drm/i915/gvt: Clear the shadow page table entry after post-sync
A shadow page table entry needs to be cleared after being set as
post-sync. This patch fixes the recent error reported in Win7-32 test.

Fixes: 2707e44466 ("drm/i915/gvt: vGPU graphics memory virtualization")
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2018-01-04 14:23:28 +08:00
Stefan Schake
ce9caf2f79 drm/vc4: Move IRQ enable to PM path
We were calling enable_irq on bind, where it was already enabled previously
by the IRQ helper. Additionally, dev->irq is not set correctly until after
postinstall and so was always zero here, triggering a warning in 4.15.
Fix both by moving the enable to the power management resume path, where we
know there was a previous disable invocation during suspend.

Fixes: 253696ccd6 ("drm/vc4: Account for interrupts in flight")
Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1514563543-32511-1-git-send-email-stschake@gmail.com
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2018-01-03 15:56:03 -08:00
Chris Wilson
c68ce69910 drm/i915: Assert we do not try to wait on an invalid seqno
We should never insert the invalid seqno into the wait tree, so assert
we do not.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102192500.20364-1-chris@chris-wilson.co.uk
2018-01-03 17:48:00 +00:00
Archit Taneja
9dcfbc182f drm/msm: Fix NULL deref in adreno_load_gpu
The msm/kms driver should work even if there is no GPU device specified
in DT. Currently, we get a NULL dereference crash in adreno_load_gpu
since the driver assumes that priv->gpu_pdev is non-NULL.

Perform an additional check on priv->gpu_pdev before trying to retrieve
the msm_gpu pointer from it.

v2: Incorporate Jordan's comments:
- Simplify the check to share the same error message.
- Use dev_err_once() to avoid an error message every time we open the
  drm device fd.

Fixes: eec874ce5f (drm/msm/adreno: load gpu at probe/bind time)

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Acked-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-03 09:36:17 -05:00
Sujaritha Sundaresan
6f25d0be18 drm/i915/guc : GEM_BUG_ON on invoking GuC reset function
Instead of returning -EINVAL, GEM_BUG_ON when GuC reset is invoked for
platforms not supporting as we don't expect to invoke it.

v2: re-wording commit message and subject (Sagar)

Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1514928025-29659-2-git-send-email-sujaritha.sundaresan@intel.com
2018-01-03 14:02:12 +00:00
Sujaritha Sundaresan
c24f0c1de4 drm/i915/guc : Decoupling ADS and logs from submission
The Additional Data Struct (ADS) contains objects that are required by
GuC post FW load and are not necessarily submission-only. Even with
submission disabled we may require something inside the ADS, so it
makes more sense for them to be always created.

Similarly, we need to access GuC logs and even if GuC submission
is disabled, to debug issues with GuC loading or with whatever we're using
GuC for.

v2: re-wording commit message (Sagar)

Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1514928025-29659-1-git-send-email-sujaritha.sundaresan@intel.com
2018-01-03 14:02:10 +00:00
David Lechner
5b8ea816e8 drm/tinydrm: add driver for ST7735R panels
This adds a new driver for Sitronix ST7735R display panels.

This has been tested using an Adafruit 1.8" TFT.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1514833336-22564-4-git-send-email-david@lechnology.com
2018-01-03 13:54:24 +01:00
David Lechner
f3125a545d drm/tinydrm: Update ILI9225 compatible string
This updates the compatible string for a no-name LCD panel to
"vot,v220hf01a-t", "ilitek,ili9225".

The original bindings were the generic "ilitek,ili9225-2.2in-176x220"
because I could not find a datasheet. However, after some more research,
I finally found one, so the actual vendor and model name are now known.

This previous bindings have not made it to the mainline kernel yet, so
this is not breaking backwards compatibility.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1513881187-3197-4-git-send-email-david@lechnology.com
2018-01-03 13:52:53 +01:00
Chris Wilson
2221c5b7dd drm/i915/execlists: Reduce list_for_each_safe+list_safe_reset_next
After staring at the list_for_each_safe macros for a bit, our current
invocation of list_safe_reset_next in execlists_schedule() simply
reduces to list_for_each.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-11-chris@chris-wilson.co.uk
2018-01-03 12:09:46 +00:00
Chris Wilson
ce01b17377 drm/i915/execlists: Assert there are no simple cycles in the dependencies
The dependency chain must be an acyclic graph. This is checked by the
swfence, but for sanity, also do a simple check that we do not corrupt
our list iteration in execlists_schedule() by a shallow dependency
cycle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-10-chris@chris-wilson.co.uk
2018-01-03 12:09:44 +00:00
Chris Wilson
83cc84c5a8 drm/i915: Assert all signalers we depended on did indeed signal
Back up our comment that all signalers should have been signaled before
we ourselves were retired with an assert to that effect.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-9-chris@chris-wilson.co.uk
2018-01-03 12:05:41 +00:00
Chris Wilson
65c475c6dd drm/i915: Hold rpm wakeref for modifying the global seqno
To modify the global seqno may require rewriting a few registers, which
requires us to hold the rpm wakeref. We must therefore take it around
the call to i915_gem_set_global_seqno() in debugfs, on behalf of the
user.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-15-chris@chris-wilson.co.uk
2018-01-03 11:42:33 +00:00
Chris Wilson
f3c9d40757 drm/i915/execlists: Tidy enabling execlists
Move the register settings for enabling execlists into its own function
for clarity.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-18-chris@chris-wilson.co.uk
2018-01-03 11:02:43 +00:00
Chris Wilson
693cfbf058 drm/i915/execlists: Record elsp offset during engine setup
Currently, we record the elsp register offset inside init-hw but we only
need to do it once during engine setup (after we know the mmio
iomapping).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102151235.3949-17-chris@chris-wilson.co.uk
2018-01-03 11:01:38 +00:00