nvidia-tegra-modules.git/drivers/gpu/drm, branch gpu-paging NVIDIA's kernel modules to support tegra chips (used in Jetson boards) tegra-udrm : Fix kmem leak 2021-04-01T00:28:21+00:00 jbajaj jbajaj@nvidia.com 2021-03-25T14:19:00+00:00 e49d334c595991f81fc2a6740d9f428026b07c3d release reference to eventfd context Bug 200708315 Bug 200707615 Change-Id: I9fed2be75a73589916a38636cd001ec5f46a6fd3 Signed-off-by: Jay Bajaj <jbajaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2505524 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Youngjin Kim <nkim@nvidia.com> Reviewed-by: Phoenix Jung <pjung@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit 
release reference to eventfd context

Bug 200708315
Bug 200707615

Change-Id: I9fed2be75a73589916a38636cd001ec5f46a6fd3
Signed-off-by: Jay Bajaj <jbajaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2505524
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Youngjin Kim <nkim@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
drm: tegra-drm: add tegra_udrm_postclose 2020-12-16T17:09:19+00:00 Alvin Park apark@nvidia.com 2020-12-15T06:26:16+00:00 39339c9f60b629c1f9cecad48a84385d67ec3309 To free file->driver_priv which was allocated by tegra_udrm_open, added tegra_udrm_postclose. Bug 3197534 Change-Id: I88608aa50d7fb73a6ed699ac4deef7b87e169de9 Signed-off-by: Alvin Park <apark@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2459899 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Hardik T Shah <hardikts@nvidia.com> Reviewed-by: Jay Kumar Bajaj <jbajaj@nvidia.com> Reviewed-by: Phoenix Jung <pjung@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit 
To free file->driver_priv which was allocated by tegra_udrm_open,
added tegra_udrm_postclose.

Bug 3197534

Change-Id: I88608aa50d7fb73a6ed699ac4deef7b87e169de9
Signed-off-by: Alvin Park <apark@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2459899
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Hardik T Shah <hardikts@nvidia.com>
Reviewed-by: Jay Kumar Bajaj <jbajaj@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
drm: tegra_udrm: release eventfd context after signalling userspace 2020-11-18T15:39:04+00:00 Ole Bjørn Midtbø omidtbo@cisco.com 2020-08-11T08:44:37+00:00 1af9456216a98e6f931ab4f441e67eacce6a970c Fix crash due to use-after-free. [ 72.483066] BUG: spinlock bad magic on CPU#4, video/1371 [ 72.488377] lock: 0xffffffc19b43bc88, .magic: ffffffc1, .owner: /-541618416, .owner_cpu: 384 [ 72.496886] CPU: 4 PID: 1371 Comm: video Tainted: G O 4.9.241+ #24 [ 72.504180] Hardware name: barents (DT) [ 72.508008] Call trace: [ 72.510453] [<ffffff800808aca8>] dump_backtrace+0x0/0x1c8 [ 72.515842] [<ffffff800808ae94>] show_stack+0x24/0x30 [ 72.520885] [<ffffff80084ee1d8>] dump_stack+0xc4/0xfc [ 72.525928] [<ffffff80081dde0c>] spin_dump+0x94/0xa4 [ 72.530883] [<ffffff80081234f8>] do_raw_spin_lock+0xc8/0x108 [ 72.536532] [<ffffff8008efb37c>] _raw_spin_lock_irqsave+0x5c/0x70 [ 72.542613] [<ffffff80082d9cc0>] eventfd_signal+0x30/0x90 [ 72.548001] [<ffffff80088738cc>] tegra_udrm_preclose+0x94/0xd8 [ 72.553822] [<ffffff800884fc58>] drm_release+0xa0/0x2f0 [ 72.559037] [<ffffff8008278398>] __fput+0xb0/0x230 [ 72.563817] [<ffffff8008278590>] ____fput+0x20/0x30 [ 72.568686] [<ffffff80080d3358>] task_work_run+0xd0/0x100 [ 72.574074] [<ffffff80080b083c>] do_exit+0x384/0xbb8 [ 72.579027] [<ffffff80080b10fc>] do_group_exit+0x3c/0xa0 [ 72.584328] [<ffffff80080c0488>] get_signal+0x128/0xba8 [ 72.589542] [<ffffff800808a138>] do_signal+0x80/0x1c0 [ 72.594583] [<ffffff800808a410>] do_notify_resume+0xa8/0xc0 [ 72.600143] [<ffffff8008083258>] work_pending+0x8/0x14 Bug 3174256 Change-Id: If502fc3035f53a5ad776acf1dbc7c21046a41b2a Signed-off-by: Ken Chang <kenc@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2444208 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit 
Fix crash due to use-after-free.

[   72.483066] BUG: spinlock bad magic on CPU#4, video/1371
[   72.488377]  lock: 0xffffffc19b43bc88, .magic: ffffffc1, .owner:
/-541618416, .owner_cpu: 384
[   72.496886] CPU: 4 PID: 1371 Comm: video Tainted: G           O
4.9.241+ #24
[   72.504180] Hardware name: barents (DT)
[   72.508008] Call trace:
[   72.510453] [<ffffff800808aca8>] dump_backtrace+0x0/0x1c8
[   72.515842] [<ffffff800808ae94>] show_stack+0x24/0x30
[   72.520885] [<ffffff80084ee1d8>] dump_stack+0xc4/0xfc
[   72.525928] [<ffffff80081dde0c>] spin_dump+0x94/0xa4
[   72.530883] [<ffffff80081234f8>] do_raw_spin_lock+0xc8/0x108
[   72.536532] [<ffffff8008efb37c>] _raw_spin_lock_irqsave+0x5c/0x70
[   72.542613] [<ffffff80082d9cc0>] eventfd_signal+0x30/0x90
[   72.548001] [<ffffff80088738cc>] tegra_udrm_preclose+0x94/0xd8
[   72.553822] [<ffffff800884fc58>] drm_release+0xa0/0x2f0
[   72.559037] [<ffffff8008278398>] __fput+0xb0/0x230
[   72.563817] [<ffffff8008278590>] ____fput+0x20/0x30
[   72.568686] [<ffffff80080d3358>] task_work_run+0xd0/0x100
[   72.574074] [<ffffff80080b083c>] do_exit+0x384/0xbb8
[   72.579027] [<ffffff80080b10fc>] do_group_exit+0x3c/0xa0
[   72.584328] [<ffffff80080c0488>] get_signal+0x128/0xba8
[   72.589542] [<ffffff800808a138>] do_signal+0x80/0x1c0
[   72.594583] [<ffffff800808a410>] do_notify_resume+0xa8/0xc0
[   72.600143] [<ffffff8008083258>] work_pending+0x8/0x14

Bug 3174256

Change-Id: If502fc3035f53a5ad776acf1dbc7c21046a41b2a
Signed-off-by: Ken Chang <kenc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2444208
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
tegra_udrm: add SEND_CONNECTOR_STATUS_EVENT ioctl 2019-12-23T23:38:41+00:00 Yogish Kulkarni yogishk@nvidia.com 2019-12-20T07:25:44+00:00 cda3f78dc40d0f21b1108a4087b6198fb53bde02 Add DRM_TEGRA_UDRM_SEND_CONNECTOR_STATUS_EVENT ioctl to generate a uevent for connector status property change. user space calls this ioctl with connector id and property id related to the status change. Bug 200577678 Change-Id: I079a7ebbc2c11ad6e6c7003df6eab57817161e26 Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2266101 GVS: Gerrit_Virtual_Submit Reviewed-by: Sai Kiran K <skirank@nvidia.com> Tested-by: Sai Kiran K <skirank@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add DRM_TEGRA_UDRM_SEND_CONNECTOR_STATUS_EVENT ioctl to generate
a uevent for connector status property change. user space calls
this ioctl with connector id and  property id related to the
status change.

Bug 200577678

Change-Id: I079a7ebbc2c11ad6e6c7003df6eab57817161e26
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2266101
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sai Kiran K <skirank@nvidia.com>
Tested-by: Sai Kiran K <skirank@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: support dual hdmi hotplug 2019-10-22T20:40:18+00:00 Jeremy Ho jeremyh@nvidia.com 2019-10-01T13:27:13+00:00 aa2b199a23e452ee8fec5d418e04973275083339 Bug 200549422 Change-Id: I0c073509e097db6de8706fb59bd67ec2e92fe4d4 Signed-off-by: Jeremy Ho <jeremyh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2209472 Reviewed-by: Ken Chang <kenc@nvidia.com> Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-by: Naveen Kumar S <nkumars@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Bug 200549422

Change-Id: I0c073509e097db6de8706fb59bd67ec2e92fe4d4
Signed-off-by: Jeremy Ho <jeremyh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2209472
Reviewed-by: Ken Chang <kenc@nvidia.com>
Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-by: Naveen Kumar S <nkumars@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: support DSI hotplug 2019-09-23T16:26:07+00:00 Ken Chang kenc@nvidia.com 2019-09-06T03:17:29+00:00 6cb8bebc6358148190d1f12b4ff41160310f2eef Send DRM HOTPLUG uevent for disp_extcon DSI, which has cable id EXTCON_DISP_DSIHPD, connection state. Bug 200547709 Change-Id: If118aa6a5fdbb362912b58d3c6f6be608815d46a Signed-off-by: Ken Chang <kenc@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2191397 Reviewed-by: Shu Zhong <shuz@nvidia.com> Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-by: Naveen Kumar S <nkumars@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Santosh Galma <galmar@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Send DRM HOTPLUG uevent for disp_extcon DSI, which has
cable id EXTCON_DISP_DSIHPD, connection state.

Bug 200547709

Change-Id: If118aa6a5fdbb362912b58d3c6f6be608815d46a
Signed-off-by: Ken Chang <kenc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2191397
Reviewed-by: Shu Zhong <shuz@nvidia.com>
Reviewed-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-by: Naveen Kumar S <nkumars@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Santosh Galma <galmar@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: correct error checking 2019-08-23T11:41:41+00:00 Yogish Kulkarni yogishk@nvidia.com 2019-08-14T06:44:31+00:00 cf0f63690603a709ef75bea6ebb439cd8b7f15c6 devm_extcon_register_notifier() returns 0 if success or negaive error number if failure. extcon_get_extcon_dev() returns the pointer of extcon device if success. It returns NULL or ERR_PTR(err) on failure. disp-state device name on older platforms is "extcon:disp-state", so try that if "external-connection:disp-state" fails. Bug 200515973 Change-Id: Ic05e52e63513cd4c556300856bccc3e1db81934e Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2175018 (cherry picked from commit 6637d613b8502e9faa2c57b7b15a4419b42ca8f6) Reviewed-on: https://git-master.nvidia.com/r/2176788 Reviewed-by: Ujwal Patel <ujwalp@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
devm_extcon_register_notifier() returns 0 if success or negaive
error number if failure.

extcon_get_extcon_dev() returns the pointer of extcon device if
success. It returns NULL or ERR_PTR(err) on failure.

disp-state device name on older platforms is "extcon:disp-state",
so try that if "external-connection:disp-state" fails.

Bug 200515973

Change-Id: Ic05e52e63513cd4c556300856bccc3e1db81934e
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2175018
(cherry picked from commit 6637d613b8502e9faa2c57b7b15a4419b42ca8f6)
Reviewed-on: https://git-master.nvidia.com/r/2176788
Reviewed-by: Ujwal Patel <ujwalp@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: Send HOTPLUG uevent 2019-07-05T08:57:42+00:00 Yogish Kulkarni yogishk@nvidia.com 2019-06-24T12:33:30+00:00 f6c30cf3c2c71b0b0ba0830ce0ac947992305dd5 Listen for HDMI and DP cable state change events on extcon device "external-connection:disp-state". Upon cable state change event, generate DRM HOTPLUG uevent. Bug 200515973 Change-Id: If0eb1212a409a7846ea42ca04ead32ef65da3aa8 Reviewed-on: https://git-master.nvidia.com/r/2142400 (cherry picked from commit 948799eb5d912cd71b403bb1c1466ca178c770ea) Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2148040 GVS: Gerrit_Virtual_Submit Reviewed-by: Ujwal Patel <ujwalp@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Listen for HDMI and DP cable state change events on extcon device
"external-connection:disp-state". Upon cable state change event,
generate DRM HOTPLUG uevent.

Bug 200515973

Change-Id: If0eb1212a409a7846ea42ca04ead32ef65da3aa8
Reviewed-on: https://git-master.nvidia.com/r/2142400
(cherry picked from commit 948799eb5d912cd71b403bb1c1466ca178c770ea)
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2148040
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ujwal Patel <ujwalp@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: Notify userspace about set master 2019-02-06T13:53:09+00:00 Yogish Kulkarni yogishk@nvidia.com 2019-01-29T14:34:11+00:00 6b797b48538da3c42aa5da374f89fbb318e2c698 Add DRM_TEGRA_UDRM_SET_MASTER_NOTIFY ioctl. In this ioctl acquire reference to the internal eventfd context associated with eventfd passed by user space. Signal this eventfd from driver's master_set method. Bug 200479257 Bug 200473544 Bug 2158091 Change-Id: I3b3518a5f33e948e5fafb829768692a0c8379fba Reviewed-on: https://git-master.nvidia.com/r/#/c/2006490/ Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> (cherry picked from commit 22603e26d309d694184deeccb52ca52326b4d7bd) Reviewed-on: https://git-master.nvidia.com/r/2012016 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add DRM_TEGRA_UDRM_SET_MASTER_NOTIFY ioctl. In this ioctl acquire
reference to the internal eventfd context associated with eventfd
passed by user space. Signal this eventfd from driver's master_set
method.

Bug 200479257
Bug 200473544
Bug 2158091

Change-Id: I3b3518a5f33e948e5fafb829768692a0c8379fba
Reviewed-on: https://git-master.nvidia.com/r/#/c/2006490/
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
(cherry picked from commit 22603e26d309d694184deeccb52ca52326b4d7bd)
Reviewed-on: https://git-master.nvidia.com/r/2012016
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
DRM: tegra_udrm: Don't set DRM_AUTH flag 2019-02-04T18:06:41+00:00 Yogish Kulkarni yogishk@nvidia.com 2019-01-30T12:06:59+00:00 74acd98f2c3c3abce944674adcc12517447233d6 After login to Ubuntu Wayland desktop, if user tries to launch application which opens DRM device and calls e.g drmGetVersion it fails as drmGetVersion call handling in UMD will create drm_nvdc context and starts a thread to listen for close, set/drop master notifications from driver. It uses tegra_udrm_close_notify_ioctl and tegra_udrm_drop_master_notify_ioctl to register for notifications from KMD. So if DRM_AUTH is set for those ioctls they might fail if there is existing master, so don't set DRM_AUTH on those ioctls. None of the tegra_udrm ioctls are modifying KMS state so DRM_AUTH is not required anyway. Bug 200489906 Bug 2158091 Change-Id: I94ea328f43bae544e3ade7967a293351d036901a Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2007459 (cherry picked from commit 1f64b4a583b3ac2df07102a602e369eca814c247) Reviewed-on: https://git-master.nvidia.com/r/2009523 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
After login to Ubuntu Wayland desktop, if user tries to launch
application which opens DRM device and calls e.g drmGetVersion
it fails as drmGetVersion call handling in UMD will create drm_nvdc
context and starts a thread to listen for close, set/drop master
notifications from driver. It uses tegra_udrm_close_notify_ioctl
and tegra_udrm_drop_master_notify_ioctl to register for
notifications from KMD. So if DRM_AUTH is set for those ioctls
they might fail if there is existing master, so don't set DRM_AUTH
on those ioctls.
None of the tegra_udrm ioctls are modifying KMS state so DRM_AUTH
is not required anyway.

Bug 200489906
Bug 2158091

Change-Id: I94ea328f43bae544e3ade7967a293351d036901a
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2007459
(cherry picked from commit 1f64b4a583b3ac2df07102a602e369eca814c247)
Reviewed-on: https://git-master.nvidia.com/r/2009523
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>