nvidia-tegra-modules.git/drivers/misc/tegra-profiler/comm.c, branch rtss22-ae NVIDIA's kernel modules to support tegra chips (used in Jetson boards) misc: tegra-profiler: fix build errors on k5.9 2021-01-16T02:40:03+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2020-09-18T20:23:49+00:00 9e4c5eaa0ac9682d9da9e882f5a7aab508fc15a7 A few tegra-profiler changes to be compatible with kernel-5.9. Bug 3127567 Change-Id: I8cdfe325e4293d23d41c1065d5be5e9a723f5be2 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2416859 (cherry picked from commit 243ad0e26488e8b150551a490d6fedcce25d65a4) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2469350 Reviewed-by: Roman Rybalko <rrybalko@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
A few tegra-profiler changes to be compatible with kernel-5.9.

Bug 3127567

Change-Id: I8cdfe325e4293d23d41c1065d5be5e9a723f5be2
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2416859
(cherry picked from commit 243ad0e26488e8b150551a490d6fedcce25d65a4)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2469350
Reviewed-by: Roman Rybalko <rrybalko@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
misc: tegra-profiler: fix kernel stack info leak 2019-08-02T06:00:15+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2019-07-29T06:18:57+00:00 c21e3f6ffbfde9a55dacd9a8c5221ac2629e5a4d Prevent stack info leak in tegra-profiler ioctl call (on-stack variable "state"). Bug 2664195 Jira DTSP-4202 Change-Id: I26ea694a29485463ea84abb48e028d8ab380029e Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2163187 (cherry picked from commit 0a751f93c6716ba8ec4d08230999ef0368d4a611) Reviewed-on: https://git-master.nvidia.com/r/2164936 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Roman Rybalko <rrybalko@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> 
Prevent stack info leak in tegra-profiler ioctl
call (on-stack variable "state").

Bug 2664195
Jira DTSP-4202

Change-Id: I26ea694a29485463ea84abb48e028d8ab380029e
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2163187
(cherry picked from commit 0a751f93c6716ba8ec4d08230999ef0368d4a611)
Reviewed-on: https://git-master.nvidia.com/r/2164936
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Roman Rybalko <rrybalko@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>
tegra-profiler: dwarf: support multiple processes 2019-01-18T07:51:12+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-11-08T10:49:42+00:00 a6614067673a5e61444fcfcb6c9826bdcf60c28e - Support DWARF/ARM-EHABI unwinding for multiple processes. - Add cpu_id for MMAP samples. Bug 2438564 Jira DTSP-824 Jira DTSP-1599 Change-Id: I998906011cff240b9a554cd40679cd9ec9c0f7b7 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1945653 (cherry picked from commit 20e2cf7d2509dfc4708f4a3720aee26852998f13) Reviewed-on: https://git-master.nvidia.com/r/1992080 Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> 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> 
- Support DWARF/ARM-EHABI unwinding for multiple processes.
- Add cpu_id for MMAP samples.

Bug 2438564
Jira DTSP-824
Jira DTSP-1599

Change-Id: I998906011cff240b9a554cd40679cd9ec9c0f7b7
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1945653
(cherry picked from commit 20e2cf7d2509dfc4708f4a3720aee26852998f13)
Reviewed-on: https://git-master.nvidia.com/r/1992080
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
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>
misc: tegra-profiler: fix build errors on k4.14 2018-07-19T07:05:56+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-07-08T19:17:39+00:00 fdd62b674a9b07b1e197959daff174dd5621cd4e Fix build errors on k4.14: - A few minor changes. - Do not use cpu hotplug notifier for k4.14. Bug 2247414 Change-Id: I51221d08f6e8b7aaa37a7e719da8586cf93288a8 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1773927 Reviewed-by: Rakesh Babu Bodla <rbodla@nvidia.com> Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Fix build errors on k4.14:

- A few minor changes.
- Do not use cpu hotplug notifier for k4.14.

Bug 2247414

Change-Id: I51221d08f6e8b7aaa37a7e719da8586cf93288a8
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1773927
Reviewed-by: Rakesh Babu Bodla <rbodla@nvidia.com>
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
tegra-profiler: fix uninitialized pmu structures 2018-07-13T05:33:56+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-07-12T11:38:32+00:00 fd6b9c766d3b2c455d2ab31a01d7717c03c192f5 Split the module initialization into two parts and move PMU initialization to the later part. This fixes possibly uninitialized PMU structures for some cores. Bug 200427239 Change-Id: I09555a1b018596e779b937f0e1378db60bb69780 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1776957 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: Kasinadha Dendukuri <kdendukuri@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Split the module initialization into two parts and move
PMU initialization to the later part. This fixes
possibly uninitialized PMU structures for some cores.

Bug 200427239

Change-Id: I09555a1b018596e779b937f0e1378db60bb69780
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1776957
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Kasinadha Dendukuri <kdendukuri@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
misc: tegra-profiler: sample multiple processes 2018-04-18T15:43:24+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-04-17T13:20:12+00:00 c3c4e00a8ddfcb888f640fc2aec3b69f53eae515 - Sample multiple processes. Add a few new modes. - Fix possible crash in d_path() during multiple execs. Bug 2104957 Bug 2100416 Change-Id: Iab1568de9365e1c719b45c65f490bbd212995b69 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1696670 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
- Sample multiple processes. Add a few new modes.
- Fix possible crash in d_path() during multiple execs.

Bug 2104957
Bug 2100416

Change-Id: Iab1568de9365e1c719b45c65f490bbd212995b69
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1696670
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
misc: tegra-profiler: fix potential race 2018-03-07T18:24:38+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-03-07T09:22:56+00:00 1a7b1a95d88cd0a35641f3342ece3745def8fd16 Move remove_mmap_entry() to spin protected block to prevent a possible race. Stay kfree()/vfree() out of spin-lock section to avoid "scheduling while atomic". Bug 2050576 Change-Id: I40b19ab566e6740a8431bae5d4e0be48c1d8c000 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1670288 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Alexey Kravets <akravets@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> 
Move remove_mmap_entry() to spin protected block
to prevent a possible race.
Stay kfree()/vfree() out of spin-lock section to
avoid "scheduling while atomic".

Bug 2050576

Change-Id: I40b19ab566e6740a8431bae5d4e0be48c1d8c000
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1670288
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alexey Kravets <akravets@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>
misc: tegra-profiler: add sampling mode 2018-02-09T09:14:02+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-02-05T11:29:15+00:00 7ab0fe195897975b45d4bd47b3bf937b8d8982e4 Implement ability to fully turn off the sampling. Bug 2053360 Change-Id: I6e127f40fb876d95e1db235cb8926a7ed421b8c6 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1652082 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Dmitry Antipov <dantipov@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> 
Implement ability to fully turn off the sampling.

Bug 2053360

Change-Id: I6e127f40fb876d95e1db235cb8926a7ed421b8c6
Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1652082
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Dmitry Antipov <dantipov@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>
tegra-profiler: prevent scheduling while atomic 2018-02-09T09:13:58+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-02-07T13:09:05+00:00 8b57af05b52b80e990a23d978bf87b010b875998 Fix the following "scheduling while atomic" bugs: |BUG: scheduling while atomic: tegra_profiler_... |Call trace: |[<ffffff80080ce874>] __schedule_bug+0x54/0x70 |... |[<ffffff80081bb654>] free_percpu+0x3c/0x1cc |[<ffffff8008742a38>] quadd_dwarf_unwind_stop+0x44/0x4c |[<ffffff800873e49c>] quadd_unwind_stop+0x24/0x15c |[<ffffff80087358d4>] stop+0x70/0xd4 |[<ffffff8008737fe8>] device_ioctl+0x5f0/0xd3c |BUG: scheduling while atomic: tegra_profiler_... |Call trace: |[<ffffff80080ce954>] __schedule_bug+0x54/0x70 |... |[<ffffff80081ecf98>] kfree+0x228/0x294 |[<ffffff80081d93f8>] __vunmap+0xac/0xd4 |[<ffffff80081d94ac>] vfree+0x3c/0x90 |[<ffffff800873c730>] mmap_close+0x1dc/0x210 Bug 2050576 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Change-Id: I8836108efef7f10dc2df97a5573373b901f84bf0 Reviewed-on: https://git-master.nvidia.com/r/1653542 Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User 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> 
Fix the following "scheduling while atomic" bugs:

|BUG: scheduling while atomic: tegra_profiler_...
|Call trace:
|[<ffffff80080ce874>] __schedule_bug+0x54/0x70
|...
|[<ffffff80081bb654>] free_percpu+0x3c/0x1cc
|[<ffffff8008742a38>] quadd_dwarf_unwind_stop+0x44/0x4c
|[<ffffff800873e49c>] quadd_unwind_stop+0x24/0x15c
|[<ffffff80087358d4>] stop+0x70/0xd4
|[<ffffff8008737fe8>] device_ioctl+0x5f0/0xd3c

|BUG: scheduling while atomic: tegra_profiler_...
|Call trace:
|[<ffffff80080ce954>] __schedule_bug+0x54/0x70
|...
|[<ffffff80081ecf98>] kfree+0x228/0x294
|[<ffffff80081d93f8>] __vunmap+0xac/0xd4
|[<ffffff80081d94ac>] vfree+0x3c/0x90
|[<ffffff800873c730>] mmap_close+0x1dc/0x210

Bug 2050576

Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Change-Id: I8836108efef7f10dc2df97a5573373b901f84bf0
Reviewed-on: https://git-master.nvidia.com/r/1653542
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
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>
tegra-profiler: add some additional verifications 2018-02-09T09:13:55+00:00 Igor Nabirushkin inabirushkin@nvidia.com 2018-02-07T13:05:13+00:00 10c574776ffd11b56ff1671703993f7f23754060 Add some additional verifications for SET_SECTIONS_INFO and STOP ioctls to prevent the possible errors. Bug 2060096 Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com> Change-Id: I6977b82b27c8a6bfcc6aa2964649dc211131f962 Reviewed-on: https://git-master.nvidia.com/r/1653541 Reviewed-by: Dmitry Antipov <dantipov@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User 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> 
Add some additional verifications for SET_SECTIONS_INFO
and STOP ioctls to prevent the possible errors.

Bug 2060096

Signed-off-by: Igor Nabirushkin <inabirushkin@nvidia.com>
Change-Id: I6977b82b27c8a6bfcc6aa2964649dc211131f962
Reviewed-on: https://git-master.nvidia.com/r/1653541
Reviewed-by: Dmitry Antipov <dantipov@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
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>