nvidia-tegra-modules.git/drivers/char, branch gpu-paging NVIDIA's kernel modules to support tegra chips (used in Jetson boards) hw_random: add tegra hw_random driver 2021-10-04T14:41:59+00:00 Harinarayan Bhatta hbhatta@nvidia.com 2021-07-16T04:14:00+00:00 6df99be61d08babd56feeec4cd31e6a269bc496d Add Tegra HW random driver to support /dev/hwrng. This driver calls into the tegra rng using the kernel crypto framework APIs. Bug 3326341 Change-Id: I628632d52d24c29ea55eb5f6e2b86627b91594f6 Signed-off-by: Harinarayan Bhatta <hbhatta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2569911 Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com> Reviewed-by: Rohit Upadhyay <rupadhyay@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Add Tegra HW random driver to support /dev/hwrng. This driver calls into
the tegra rng using the kernel crypto framework APIs.

Bug 3326341

Change-Id: I628632d52d24c29ea55eb5f6e2b86627b91594f6
Signed-off-by: Harinarayan Bhatta <hbhatta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2569911
Reviewed-by: Dmitry Pervushin <dpervushin@nvidia.com>
Reviewed-by: Rohit Upadhyay <rupadhyay@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
hmm: dmirror: fix kernel-4.14 build issues 2018-07-05T13:45:12+00:00 Puneet Saxena puneets@nvidia.com 2018-06-29T07:33:02+00:00 48713ff34245d3f4f5f96f7a660482eda8264e53 Include sched/mm.h for kernel_version >= 4.14 and sched.h for the kernel_version < 4.14. Bug 200412005 Change-Id: I228b92e334e0a4f0ff9c44041f46340e8a68aba6 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1765283 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Include sched/mm.h for kernel_version >= 4.14
and sched.h for the kernel_version < 4.14.

Bug 200412005

Change-Id: I228b92e334e0a4f0ff9c44041f46340e8a68aba6
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1765283
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
hmm: dmirror: cleanup spurious print 2018-05-22T11:37:44+00:00 Puneet Saxena puneets@nvidia.com 2018-05-18T12:26:12+00:00 e73c3419e0eae1c345d917e9248ac8bb577fe341 Clean up spurious print "hmm_dmirror loaded THIS IS A DANGEROUS MODULE !!!" to avoid confusion of loading Dangerous module. Bug 200408334 Change-Id: I70f6570ebce039a70635c49acd024842b82a25e4 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1723659 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User 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> 
Clean up spurious print "hmm_dmirror loaded THIS IS A
DANGEROUS MODULE !!!" to avoid confusion
of loading Dangerous module.

Bug 200408334

Change-Id: I70f6570ebce039a70635c49acd024842b82a25e4
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1723659
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
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>
hmm: dmirror: fix for hmm code base update 2018-05-21T12:25:09+00:00 Puneet Saxena puneets@nvidia.com 2018-05-03T10:24:52+00:00 edf08e707ff7e5f95c4d165fa197659e01477902 Fix hmm_dmirror driver for hmm core code base update from V25 to latest PSs on Kernel 4.17. Major changes in latest PSs - - shift start and end address in "hmm_range" structure - "flags" and "values" macros as flags and values array - include flags and values pointer in "hmm_range" structure - flags and values bits are set in hmmpfn extra bits Hence hmmpfn = <pfn> + <pfn_shift> where Hmm driver sets pfn_shift as per its operations however it can't be > PAGE_SHIFT. pfn_shift bits stores the flags and values bit hmm_dmirror driver defines pfn_shift as 7 and sets the flags bit as HMM_PFN_VALID/ READ and HMM_PFN_WRITE operation. Actual driver should set these bits as per different operations its going to perform. Bug 200408334 Change-Id: I712a7df0c3c55209f837fcec56cda8c0cca4a697 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1712105 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com> 
Fix hmm_dmirror driver for hmm core code base update
from V25 to latest PSs on Kernel 4.17.

Major changes in latest PSs -
	- shift start and end address in "hmm_range" structure
	- "flags" and "values" macros as flags and values array
	- include flags and values pointer in "hmm_range" structure
	- flags and values bits are set in hmmpfn extra bits
	  Hence hmmpfn = <pfn> + <pfn_shift>
	  where Hmm driver sets pfn_shift as per its operations
	  however it can't be > PAGE_SHIFT.
	  pfn_shift bits stores the flags and values bit

hmm_dmirror driver defines pfn_shift as 7 and sets the
flags bit as HMM_PFN_VALID/ READ and HMM_PFN_WRITE operation.

Actual driver should set these bits as per different operations
its going to perform.

Bug 200408334

Change-Id: I712a7df0c3c55209f837fcec56cda8c0cca4a697
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1712105
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
mm: hmm: dmirror: add hmm_dmirror driver from core kernel repo 2018-05-08T14:11:15+00:00 Puneet Saxena puneets@nvidia.com 2018-05-04T04:53:15+00:00 39a31a44d0ed0604c2b0a03a7c303f7e485598cb Add hmm_dmirror driver from core kernel tree. Corresponding change in core kernel removes hmm_dmirror driver from kernel/kernel-4.9 repo. This is useful for maintainability and portability to next kernel version. Bug 200410749 Change-Id: I26e09b8de2ad3b1aa9a290391b9d2c496417fa59 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1708111 GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Prateek Patel <prpatel@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> 
Add hmm_dmirror driver from core kernel tree.
Corresponding change in core kernel removes hmm_dmirror driver
from kernel/kernel-4.9 repo.

This is useful for maintainability and portability to next kernel
version.

Bug 200410749

Change-Id: I26e09b8de2ad3b1aa9a290391b9d2c496417fa59
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1708111
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Prateek Patel <prpatel@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>
mm: hmm: fix coverity Untrusted value as argument 2018-05-08T14:11:08+00:00 Puneet Saxena puneets@nvidia.com 2018-04-27T09:26:19+00:00 bb9ef584db500a06eb68043b9d499373a94c88cf It fixes coverity defect as Untrusted value as argument (TAINTED_SCALAR) Coverity ID 3231632 Bug 200386846 Change-Id: I0c1cb95a5e2214a5e5fcafb5e19320ff02dbccbe Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1703898 Reviewed-on: https://git-master.nvidia.com/r/1708109 GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Prateek Patel <prpatel@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> 
It fixes coverity defect as Untrusted value as argument
(TAINTED_SCALAR)

Coverity ID 3231632
Bug 200386846

Change-Id: I0c1cb95a5e2214a5e5fcafb5e19320ff02dbccbe
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1703898
Reviewed-on: https://git-master.nvidia.com/r/1708109
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Prateek Patel <prpatel@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>
mm: hmm: protect dummy device attributes 2018-05-08T14:11:04+00:00 Puneet Saxena puneets@nvidia.com 2018-04-27T08:59:23+00:00 86f556ef24469a70d46eb195d2a934ceb0055a60 It protects hmm_dmirror attributes such as no of free pages, allocated pages and free pages list under dmirror device lock. Coverity ID 3231633 Bug 200386846 Change-Id: Ib52f4eed8d2a22d300855b6a3d73d58ba227b3c9 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1703884 Reviewed-on: https://git-master.nvidia.com/r/1708108 Reviewed-by: Prateek Patel <prpatel@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@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> 
It protects hmm_dmirror  attributes such as no of free pages,
allocated pages and free pages list under dmirror device
lock.

Coverity ID 3231633
Bug 200386846

Change-Id: Ib52f4eed8d2a22d300855b6a3d73d58ba227b3c9
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1703884
Reviewed-on: https://git-master.nvidia.com/r/1708108
Reviewed-by: Prateek Patel <prpatel@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@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>
mm: hmm: fix dereference NULL pointer 2018-05-08T14:11:01+00:00 Puneet Saxena puneets@nvidia.com 2018-04-27T09:48:14+00:00 53df5b1d330cff4980a9c3a19768f7ad73b442f8 Fix coverity defect where "migrate_pfn_to_page" may return NULL page and NULL is dereferenced down the code. Coverity ID 3231630 Bug 200386846 Change-Id: I5e489b8076a9ea8b8e127d9d03a527709a5fe607 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1703909 Reviewed-on: https://git-master.nvidia.com/r/1708107 Reviewed-by: Prateek Patel <prpatel@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@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> 
Fix coverity defect where "migrate_pfn_to_page"
may return NULL page and NULL is dereferenced
down the code.

Coverity ID 3231630

Bug 200386846

Change-Id: I5e489b8076a9ea8b8e127d9d03a527709a5fe607
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1703909
Reviewed-on: https://git-master.nvidia.com/r/1708107
Reviewed-by: Prateek Patel <prpatel@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@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>
hmm: dummy-driver: fix dummy device creation fail 2018-05-08T14:10:57+00:00 Prateek Patel prpatel@nvidia.com 2018-04-24T07:12:52+00:00 31d969fbf746109cb9bab8cd78fbaa9b72d21f05 Change the order in dmirror_remove() and cdev_add() failure to deallocate/free the resources in reverse order of allocation. Bug 2023072 Change-Id: Ifb3dbea8363481b1c2efe451224c9782c965a94f Signed-off-by: Prateek Patel <prpatel@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1701336 Reviewed-on: https://git-master.nvidia.com/r/1708106 Reviewed-by: Puneet Saxena <puneets@nvidia.com> Tested-by: Puneet Saxena <puneets@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@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> 
Change the order in dmirror_remove() and cdev_add() failure
to deallocate/free the resources in reverse order of allocation.

Bug 2023072

Change-Id: Ifb3dbea8363481b1c2efe451224c9782c965a94f
Signed-off-by: Prateek Patel <prpatel@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1701336
Reviewed-on: https://git-master.nvidia.com/r/1708106
Reviewed-by: Puneet Saxena <puneets@nvidia.com>
Tested-by: Puneet Saxena <puneets@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@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>
hmm: dummy-driver: fix dummy device creation 2018-05-08T14:10:53+00:00 Puneet Saxena puneets@nvidia.com 2017-11-14T07:39:08+00:00 df99a74bd272483201bd2a51c5f469b0e3853088 It fixes dummy device creation as "/dev/hmm_dummy_device". Bug 200325808 Change-Id: I6dfa3fdf56439ab013afc36e849bf224a9a9c888 Signed-off-by: Puneet Saxena <puneets@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1595969 Reviewed-on: https://git-master.nvidia.com/r/1708105 GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Prateek Patel <prpatel@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> 
It fixes dummy device creation as
"/dev/hmm_dummy_device".

Bug 200325808

Change-Id: I6dfa3fdf56439ab013afc36e849bf224a9a9c888
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1595969
Reviewed-on: https://git-master.nvidia.com/r/1708105
GVS: Gerrit_Virtual_Submit
Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com>
Reviewed-by: Prateek Patel <prpatel@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>