nvidia-tegra-modules.git/drivers/video, branch gpu-paging NVIDIA's kernel modules to support tegra chips (used in Jetson boards) gpu-paging: Functions to support initial working version 2022-05-25T01:16:30+00:00 Joshua Bakita jbakita@cs.unc.edu 2022-05-25T01:16:30+00:00 2c076a01e5bd0949032ef81cd0e2d37bdecafba5 - Buffer deallocation (+IOCTL) - Buffer reallocation - Private dmabuf user list and accessor 
- Buffer deallocation (+IOCTL)
- Buffer reallocation
- Private dmabuf user list and accessor
video: tegra: nvmap: Fix race between write and free 2022-01-11T11:39:22+00:00 Ashish Mhetre amhetre@nvidia.com 2022-01-10T11:31:01+00:00 06d8f135d0ec9d291ffb8a3049308a853edb4000 When NvRmMemWrite() and NvRmMemFree() are called simultaneously on same handle then it could lead to race where dmabuf freed from NvRmMemFree() call could get used by nvmap_get_cachebility() and cause kernel crash. When dmabuf is freed, its exported functions such as get_drvdata() won't be valid anymore and will give error value or NULL. Fix this by checking if get_drvdata() returns error value or NULL and act accordingly. Bug 3457360 Change-Id: Ibcd238bfde8775347a9f8c6266ed3ab3825d945d Signed-off-by: Ashish Mhetre <amhetre@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2651952 Reviewed-by: Ketan Patil <ketanp@nvidia.com> Reviewed-by: Puneet Saxena <puneets@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
When NvRmMemWrite() and NvRmMemFree() are called simultaneously on same
handle then it could lead to race where dmabuf freed from NvRmMemFree()
call could get used by nvmap_get_cachebility() and cause kernel crash.
When dmabuf is freed, its exported functions such as get_drvdata() won't
be valid anymore and will give error value or NULL.
Fix this by checking if get_drvdata() returns error value or NULL and act
accordingly.

Bug 3457360

Change-Id: Ibcd238bfde8775347a9f8c6266ed3ab3825d945d
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2651952
Reviewed-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tegra: hdcp: update policy init value 2022-01-07T14:10:37+00:00 Ahung Cheng ahcheng@nvidia.com 2021-11-26T11:17:13+00:00 aead036da110062df01a7a4f92592e95f3970a18 Update hdcp policy init value based on availability of HDCP TA for L4T Bug 3167119 Change-Id: I81e4f02b20214fb23c94756804448fa0ae80246b Signed-off-by: Ahung Cheng <ahcheng@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2632879 Reviewed-by: Ilhan Gurel <igurel@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 
Update hdcp policy init value based on availability of HDCP TA for L4T

Bug 3167119

Change-Id: I81e4f02b20214fb23c94756804448fa0ae80246b
Signed-off-by: Ahung Cheng <ahcheng@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2632879
Reviewed-by: Ilhan Gurel <igurel@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
video: tegra: fb: Set default fb state to RUNNING for DSI only 2022-01-03T12:54:40+00:00 Wayne Wang (SW-TEGRA) waywang@nvidia.com 2021-12-22T05:45:59+00:00 14b4a6ed4d7b0aa1f3fb340be01a47241401d4c2 Since tegra dsi driver will not call tegra_fb_update_monspecs, the default fb_info->info->state is always FBINFO_STATE_SUSPENDED. Under such situation, fbconsole will not be enabled and affect some usecases. Thus, set default fb state to FBINFO_STATE_RUNNING for DSI case only. Bug 200515788 Change-Id: Ie6336b54aa804f7cf42d3b3dcf209d8e28dcb36c Signed-off-by: Wayne Wang(SW-TEGRA) <waywang@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2645581 GVS: Gerrit_Virtual_Submit Reviewed-by: Naveen Kumar S <nkumars@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> 
Since tegra dsi driver will not call tegra_fb_update_monspecs,
the default fb_info->info->state is always FBINFO_STATE_SUSPENDED.

Under such situation, fbconsole will not be enabled and affect some usecases.

Thus, set default fb state to FBINFO_STATE_RUNNING for DSI case only.

Bug 200515788

Change-Id: Ie6336b54aa804f7cf42d3b3dcf209d8e28dcb36c
Signed-off-by: Wayne Wang(SW-TEGRA) <waywang@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2645581
GVS: Gerrit_Virtual_Submit
Reviewed-by: Naveen Kumar S <nkumars@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>
video: tegra: host: fix tsec_hdcp syncpoint stuck 2021-11-29T13:39:14+00:00 Ahung Cheng ahcheng@nvidia.com 2021-11-19T10:31:05+00:00 b4c216976e3d5a843114fd4495416ea01a9ef944 Add lock to prevent channel being freed while executing method Bug 200692849 Change-Id: Ic567b1c43d924234a962e662df954593ee14659b Signed-off-by: Ahung Cheng <ahcheng@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2628743 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add lock to prevent channel being freed while executing method

Bug 200692849

Change-Id: Ic567b1c43d924234a962e662df954593ee14659b
Signed-off-by: Ahung Cheng <ahcheng@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2628743
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tegra-vic: Make pdata->falcon_data NULL. 2021-10-06T15:56:11+00:00 Achal Verma achalv@nvidia.com 2021-09-22T08:39:04+00:00 867763ab335e8a7fb4dd838830a3f17ca67196db In case firmware load failed 15340000.vic for whatever reason, we need to reassign pdata->falcon_data NULL else based on check if (pdata->falcon_data), non NULL , code will assume that firmware is loaded properly last time and will go ahead submitting the job, which may result in SMMU-fault. We need that when it tries next time it sees pdata->falcon_data is NULL and does allocation and firmware loading before job submission, Bug 200764796 Change-Id: Ia949ceb19b6b07db94b8a310a6c00363f8e58a6d Signed-off-by: Achal Verma <achalv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2598619 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com> Reviewed-by: Amrita Deshmukh <amritad@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2606002 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Phoenix Jung <pjung@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> 
In case firmware load failed 15340000.vic
for whatever reason, we need to reassign
pdata->falcon_data NULL else based on check
if (pdata->falcon_data), non NULL , code will
assume that firmware is loaded properly last time
and will go ahead submitting the job, which may result
in SMMU-fault. We need that when it tries next time
it sees pdata->falcon_data is NULL and does allocation
and firmware loading before job submission,

Bug 200764796

Change-Id: Ia949ceb19b6b07db94b8a310a6c00363f8e58a6d
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2598619
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Amrita Deshmukh <amritad@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2606002
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
video: tegra: dc: Register AUX channels as i2c bus 2021-10-05T00:39:19+00:00 Wayne Wang (SW-TEGRA) waywang@nvidia.com 2021-09-22T10:11:32+00:00 5c76bc33f8bdfc345b78d84e2e7f12025b59ec42 Add an i2c-over-AUX i2c adapter to tegra_dc_dp. With this i2c adapter, end-user shall be able to send MCCS commands to monitor with ddc/ci tool. Also,since it needs to use I2CWR for i2c-dpaux transactions but not MOTWR, add below changes: * Add two wrapper functions: tegra_dc_dp_edid_i2c_xfer and tegra_dc_dp_ddc_i2c_xfer * Make tegra_dc_dp_i2c_xfer as a helper function: Take different write cmd coming from above 2 wrapper functions. Bug 200740788 Change-Id: Ibaca75a239d76c2356c9f95241e38aa0af0e070f Signed-off-by: Wayne Wang(SW-TEGRA) <waywang@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2601080 Reviewed-by: Shu Zhong <shuz@nvidia.com> Reviewed-by: Ujwal Patel <ujwalp@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add an i2c-over-AUX i2c adapter to tegra_dc_dp.

With this i2c adapter,
end-user shall be able to send MCCS commands to monitor with ddc/ci tool.

Also,since it needs to use I2CWR for i2c-dpaux transactions but not MOTWR,
add below changes:

* Add two wrapper functions:
tegra_dc_dp_edid_i2c_xfer and tegra_dc_dp_ddc_i2c_xfer

* Make tegra_dc_dp_i2c_xfer as a helper function:
Take different write cmd coming from above 2 wrapper functions.

Bug 200740788

Change-Id: Ibaca75a239d76c2356c9f95241e38aa0af0e070f
Signed-off-by: Wayne Wang(SW-TEGRA) <waywang@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2601080
Reviewed-by: Shu Zhong <shuz@nvidia.com>
Reviewed-by: Ujwal Patel <ujwalp@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
dc: check user-supplied arguments before use 2021-09-23T17:25:33+00:00 dmitry pervushin dpervushin@nvidia.com 2021-09-09T14:05:17+00:00 bacf198b8676adcb49b7b1e7fc98ceb0e7e33830 CID 27937 Bug 200741055 Change-Id: I3aaf094bf616f9cc56accece0f1818b9b6ba7c8a Signed-off-by: dmitry pervushin <dpervushin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2592115 Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2592167 Tested-by: Achal Verma <achalv@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Achal Verma <achalv@nvidia.com> Reviewed-by: Phoenix Jung <pjung@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> 
CID 27937
Bug 200741055

Change-Id: I3aaf094bf616f9cc56accece0f1818b9b6ba7c8a
Signed-off-by: dmitry pervushin <dpervushin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2592115
Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2592167
Tested-by: Achal Verma <achalv@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Achal Verma <achalv@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
tegra-vhost: Check ptr for NULL before accessing. 2021-09-14T16:24:33+00:00 Achal Verma achalv@nvidia.com 2021-09-13T05:27:02+00:00 a7cb3b7e85c1343e31dec1b946a84c270db138a5 This fix coverity issue: 18628 Bug 200741055 Change-Id: Icbf2a7ad85dd055ac1904a7e9a82b60557c8d447 Signed-off-by: Achal Verma <achalv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2593221 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com> Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
This fix coverity issue: 18628

Bug 200741055

Change-Id: Icbf2a7ad85dd055ac1904a7e9a82b60557c8d447
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2593221
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
nvhost: Fix comparison of unsigned against >= 0. 2021-08-24T04:40:39+00:00 Achal Verma achalv@nvidia.com 2021-05-12T09:14:34+00:00 70896c585b95d84344d8c5ab9640b6abff015573 This fixes coverity issue: 3116774 Bug 200741055 Change-Id: I512d3cadc5c4312cf8885acd7b3c9d9b9a00d8b8 Signed-off-by: Achal Verma <achalv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2528357 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com> Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2575306 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Phoenix Jung <pjung@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
This fixes coverity issue: 3116774

Bug 200741055

Change-Id: I512d3cadc5c4312cf8885acd7b3c9d9b9a00d8b8
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2528357
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Rahul Jain (SW-TEGRA) <rahuljain@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2575306
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Phoenix Jung <pjung@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>