nvidia-tegra-modules.git/drivers/tty, branch gpu-paging NVIDIA's kernel modules to support tegra chips (used in Jetson boards) tegra-uart: Fix redundant expression. 2021-08-12T19:24:39+00:00 Achal Verma achalv@nvidia.com 2021-05-11T07:46:28+00:00 c89e76cc79bf5fcc9fd027e172028f3d08d3cfa0 This fix coverity issue : 2886348 Bug 200741055 Change-Id: I92e926400cbb3361bc312660e2193bcbec5265e5 Signed-off-by: Achal Verma <achalv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2527642 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 (cherry picked from commit 49031c7477ae4c4a59ad9e433e6be2839193c4ea) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2574543 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 fix coverity issue : 2886348

Bug 200741055

Change-Id: I92e926400cbb3361bc312660e2193bcbec5265e5
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2527642
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
(cherry picked from commit 49031c7477ae4c4a59ad9e433e6be2839193c4ea)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2574543
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>
hv-comm: fix 'out of bound access' 2021-01-16T02:39:35+00:00 Achal Verma achalv@nvidia.com 2021-01-05T08:54:44+00:00 2b5bb169c6e1f467dfd0e23912283a208310ddf7 Added check for potential out-of-bound access. This fixes coverity issues: 10075160 Bug 200689436 Change-Id: I4bfa297f27d4ddb6949478bb2b504c11030c9bd2 Signed-off-by: Achal Verma <achalv@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2467795 Reviewed-by: Automatic_Commit_Validation_User 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> GVS: Gerrit_Virtual_Submit 
Added check for potential out-of-bound access.

This fixes coverity issues: 10075160

Bug 200689436

Change-Id: I4bfa297f27d4ddb6949478bb2b504c11030c9bd2
Signed-off-by: Achal Verma <achalv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2467795
Reviewed-by: Automatic_Commit_Validation_User
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>
GVS: Gerrit_Virtual_Submit
serial: tegra: uninitialized variable 2020-03-24T15:38:11+00:00 dmitry pervushin dpervushin@nvidia.com 2020-03-12T16:45:57+00:00 ee9702e50a2903c99609cd1b52cec8d435f49df8 This fixes coverity issue 2492110 Bug 2028892 Change-Id: I504e4eb2cb77b961171ae40f1c97cabf994cacf5 Signed-off-by: dmitry pervushin <dpervushin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2311733 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Hardik T Shah <hardikts@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> GVS: Gerrit_Virtual_Submit 
This fixes coverity issue 2492110

Bug 2028892

Change-Id: I504e4eb2cb77b961171ae40f1c97cabf994cacf5
Signed-off-by: dmitry pervushin <dpervushin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2311733
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Hardik T Shah <hardikts@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>
GVS: Gerrit_Virtual_Submit
serial: combined-uart: Add sysrq support to t194 2019-06-19T15:51:55+00:00 Jeetesh Burman jburman@nvidia.com 2019-06-04T11:27:57+00:00 f31a580500c634026f8846fd88fc1d66ca53197a Add sysrq support to T194 platform, 'ctrl + /' used as break-signal. Bug 200457148 Change-Id: Ib676127e245ff193815c328be98d12d770ec3701 Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2130398 Reviewed-by: Leon Yu <leoyu@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Bibek Basu <bbasu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add sysrq support to T194 platform, 'ctrl + /' used
as break-signal.

Bug 200457148

Change-Id: Ib676127e245ff193815c328be98d12d770ec3701
Signed-off-by: Jeetesh Burman <jburman@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2130398
Reviewed-by: Leon Yu <leoyu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
serial: tegra: add driver for no HW flow control 2018-09-04T13:40:08+00:00 kartik kkartik@nvidia.com 2018-09-04T03:28:14+00:00 53448a2835d96fb84e6dc84d776cde1ccb01fe3d - Add separate driver for no HW flow control support to avoid issues by adding below features to exiting serial-tegra.c - In RX path, use dma cyclic mode with double buffering to avoid latency to stop and start the DMA again in RX path. - This driver only supports receiving data in multiple of 8 bytes as RX path is only in DMA mode, so if any data that is not aligned then that data sits in the FIFO until further data arrives. Bug 1874194 Bug 1997353 Change-Id: I6ca22daac3cb794c666fc45263c1a9aea3191986 Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1459931 Signed-off-by: kartik <kkartik@nvidia.com> (cherry picked from k3.18 commit 73e2d4c51839233259176024c33e6ff7eca595da) Reviewed-on: https://git-master.nvidia.com/r/1812156 Reviewed-by: Bitan Biswas <bbiswas@nvidia.com> Tested-by: Bitan Biswas <bbiswas@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
- Add separate driver for no HW flow control support to avoid
issues by adding below features to exiting serial-tegra.c
- In RX path, use dma cyclic mode with double buffering to avoid
latency to stop and start the DMA again in RX path.
- This driver only supports receiving data in multiple of 8 bytes
as RX path is only in DMA mode, so if any data that is not aligned
then that data sits in the FIFO until further data arrives.

Bug 1874194
Bug 1997353

Change-Id: I6ca22daac3cb794c666fc45263c1a9aea3191986
Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1459931
Signed-off-by: kartik <kkartik@nvidia.com>
(cherry picked from k3.18 commit
73e2d4c51839233259176024c33e6ff7eca595da)
Reviewed-on: https://git-master.nvidia.com/r/1812156
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Tested-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
serial: combined-uart: remove typecast warning 2018-09-01T18:43:27+00:00 Ketan Patil ketanp@nvidia.com 2018-09-01T08:11:23+00:00 53f1962e53f2d6906c38a0cf86f8ac1c1b78358d Typecast the return value of of_io_request_and_map function to (u8 __iomem *) to remove typecast sparse build warnings. Bug 200434802 Change-Id: I4334bd446f9bf579d1f4c17eb99f45fb9a069ea7 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1811160 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com> Tested-by: Sachin Nikam <snikam@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Typecast the return value of of_io_request_and_map function
to (u8 __iomem *) to remove typecast sparse build warnings.

Bug 200434802

Change-Id: I4334bd446f9bf579d1f4c17eb99f45fb9a069ea7
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1811160
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Tested-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tty: serial: do not flush combined uart 2018-06-21T20:56:25+00:00 Mustafa Yigit Bilgen mbilgen@nvidia.com 2018-04-30T23:19:30+00:00 59a90d8f90ed0f064da1be91dc13f56a5229bd25 Do not send flush commands when sending messages over combined uart. Bug 2048922 Bug 2109850 Change-Id: If9fe06689540337241e3c9044840dcb510bd008a Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1705797 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Do not send flush commands when sending messages over combined uart.

Bug 2048922
Bug 2109850

Change-Id: If9fe06689540337241e3c9044840dcb510bd008a
Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1705797
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Robert Collins <rcollins@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tty: serial: add spinlock in console_write() 2018-04-25T18:53:05+00:00 Mustafa Yigit Bilgen mbilgen@nvidia.com 2018-04-24T00:11:22+00:00 4d7d519103da7fbe3fef86210d26f82f3fdcd429 Grab a spinlock in console_write, so that kernel logs and prints from the console do not overlap. Bug 2108044 Change-Id: Ic9ecaa9e300c497b1ba9d34d7cced8316e2babd1 Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1701130 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vignesh Radhakrishnan <vigneshr@nvidia.com> Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Grab a spinlock in console_write, so that kernel logs and prints from
the console do not overlap.

Bug 2108044

Change-Id: Ic9ecaa9e300c497b1ba9d34d7cced8316e2babd1
Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1701130
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vignesh Radhakrishnan <vigneshr@nvidia.com>
Reviewed-by: Robert Collins <rcollins@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
serial: combined uart: drain write buffer properly 2018-03-10T01:40:07+00:00 Mustafa Yigit Bilgen mbilgen@nvidia.com 2018-03-09T00:35:22+00:00 8fb3f99f14ed6ccbabce996ce19dd8ce01b7d9ec The current start_tx function does not drain the write buffer correctly. This can cause tasks that are writing to this port to hang when they wait for the circular buffer to become empty. Add a check to make sure that the circular buffer will be fully drained even if it wraps around. Wake up tasks that are blocked and waiting for the circular buffer to become empty. Bug 2079549 Bug 200390528 Change-Id: I019019707640d735036a2f9a8788e8e81888d0e1 Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1671670 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: Vignesh Radhakrishnan <vigneshr@nvidia.com> Reviewed-by: Robert Collins <rcollins@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
The current start_tx function does not drain the write buffer correctly.
This can cause tasks that are writing to this port to hang when they
wait for the circular buffer to become empty.

Add a check to make sure that the circular buffer will be fully drained
even if it wraps around.

Wake up tasks that are blocked and waiting for the circular buffer to
become empty.

Bug 2079549
Bug 200390528

Change-Id: I019019707640d735036a2f9a8788e8e81888d0e1
Signed-off-by: Mustafa Yigit Bilgen <mbilgen@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1671670
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Vignesh Radhakrishnan <vigneshr@nvidia.com>
Reviewed-by: Robert Collins <rcollins@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tty: serial: support log level kernel print 2018-01-23T06:20:19+00:00 Arvind M am@nvidia.com 2018-01-17T04:42:46+00:00 f9c62bc755ff3cf6afa4bb97d5adcc7300fc5d56 Supports log level print when using combined uart driver. Bug 200365736 Change-Id: If14cd1c4e58d27ac336798f92a5e87676fbf087d Signed-off-by: Arvind M <am@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1643389 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Supports log level print when using combined uart driver.

Bug 200365736

Change-Id: If14cd1c4e58d27ac336798f92a5e87676fbf087d
Signed-off-by: Arvind M <am@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1643389
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>