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path: root/drivers/gpu/nvgpu/os/linux/ioctl_tsg.c
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* gpu: nvgpu: add speculative barrierRanjanikar Nikhil Prabhakarrao2020-06-30
| | | | | | | | | | | | | | | | | | | | | | Data can be speculativerly stored and code flow can be hijacked. To mitigate this problem insert a speculation barrier. Bug 200447167 Change-Id: Ia865ff2add8b30de49aa970715625b13e8f71c08 Signed-off-by: Ranjanikar Nikhil Prabhakarrao <rprabhakarra@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1972221 (cherry picked from commit f0762ed4831b3fe6cc953a4a4ec26c2537dcb69f) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/1996052 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: Deepak Nibade <dnibade@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: add struct nvgpu_sched_ctrl to gk20aPeter Daifuku2020-01-22
| | | | | | | | | | | | | | | | | Add struct nvgpu_sched_ctrl to struct gk20a Delete struct gk20a_sched_ctrl from struct nvgpu_os_linux Update sched_ctrl functions to use the nvgpu_sched_ctrl struct Bug 200576520 Change-Id: I35b13219e5ef0a8a03333dfd7d46e1d308aec541 Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2279152 Reviewed-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-by: Satish Arora <satisha@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: rename has_timedout and make it thread safeSeema Khowala2019-02-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently has_timedout variable is protected by wmb at places where it is being set and there is no correspoding rmb whenever has_timedout variable is read. This is prone to errors for concurrent execution. This change is supposed to fix this issue. Rename has_timedout variable of channel struct to ch_timedout. Also to avoid rmb every time ch_timedout is read, ch_timedout_spinlock is added to protect ch_timedout variable for taking care of concurrent execution. Bug 2404865 Bug 2092051 Change-Id: I0bee9f50af0a48720aa8b54cbc3af97ef9f6df00 Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1930935 Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> (cherry picked from commit 1f54ea09e3445d9ca3cf7a69b4967849cc9defc8 in dev-kernel) Reviewed-on: https://git-master.nvidia.com/r/2016975 GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@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>
* gpu: nvgpu: replace input parameter tsgid with pointer to struct tsg_gk20aDebarshi Dutta2019-02-11
| | | | | | | | | | | | | | | | | | | | | gv11b_fifo_preempt_tsg needs to access the runlist_id of the tsg as well as pass the tsg pointer to other public functions such as gk20a_fifo_disable_tsg_sched. This qualifies the preempt_tsg to use a pointer to a struct tsg_gk20a instead of just using the tsgid. Jira NVGPU-1461 Change-Id: I01fbd2370b5746c2a597a0351e0301b0f7d25175 Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1959068 (cherry picked from commit 1e78d47f15ff050edbb10a88550012178d353288 in rel-32) Reviewed-on: https://git-master.nvidia.com/r/2013725 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@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>
* gpu: nvgpu: do nothing on invalid tsg releaseKonsta Holtta2018-09-29
| | | | | | | | | | | | | If nvgpu_ioctl_tsg_open() fails, this file has no priv data yet on release(). In that case there is nothing to free so just return. Jira NVGPU-967 Change-Id: I02dd1bb12a27745a3b28aaa4a943d79d82b14d2c Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1847592 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: move header location of gk20a.hDebarshi Dutta2018-09-25
| | | | | | | | | | | | | | | | | | | | | | | 1) Update header path of gk20a.h files present in os/ to <nvgpu/gk20a.h> 2) os_fence_android_sema.c indirectly was dependent on gk20a.h via semaphore.h. So, added #include <nvgpu/gk20a.h> in os_fence_android_sema.c and replaced the header with forward declaration of struct gk20a in semaphore.h Jira NVGPU-597 Change-Id: I96e23befeb80713f3a399071eb5498f6f580211d Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1842868 Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: move tsg code to commonKonsta Holtta2018-09-24
| | | | | | | | | | | | | | | tsg_gk20a.c doesn't depend on any specific hardware, so move it to the common directory. Rename the posix tsg file to posix-tsg.c. Jira NVGPU-967 Change-Id: I6e8908a8f6cf43132db8dffe3a99e424e4f764b1 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1821509 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: move channel header to commonKonsta Holtta2018-09-05
| | | | | | | | | | | | | channel_gk20a is clear from chip specifics and from most dependencies, so move it under the common directory. Jira NVGPU-967 Change-Id: I41f2160b96d4ec84064288ecc22bb360e82352df Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1810578 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Read sm error ioctl support for tsgVinod G2018-08-25
| | | | | | | | | | | | | | | | | | | | | | | | | Add READ_SM_ERROR IOCTL support to TSG level. Moved the struct to save the sm_error details from gr to tsg as the sm_error support is context based, not global. Also corrected MISRA 21.1 error in header file. nvgpu_dbg_gpu_ioctl_write_single_sm_error_state and nvgpu_dbg_gpu_ioctl_read_single_sm_error_state functions are modified to use the tsg struct nvgpu_tsg_sm_error_state. Bug 200412642 Change-Id: I9e334b059078a4bb0e360b945444cc4bf1cc56ec Signed-off-by: Vinod G <vinodg@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1794856 Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: fix memory leak in failure conditionPreetha Chandru R2018-08-21
| | | | | | | | | | | | | | | | | | This change frees tsg_private structure in nvgpu_ioctl_tsg_open() when gk20a_busy() fails and avoids a memory leak. Bug 2268533 JIRA NVGPU-1016 Change-Id: I0428cc40e042b881537f7cb597e5ebeaad815b32 Signed-off-by: Preetha Chandru R <pchandru@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1800955 Reviewed-by: Alex Waterman <alexw@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvpgu: unpowergate GPU in ioctl_tsg_open()Preetham Chandru Ramchandra2018-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The nvgpu_ioctl_tsg_open() does not make sure that GPU is unpowergated. Due to this it leads to kernel panic when GPU registers are accessed when powergated. __gk20a_warn_on_no_regs+0x38/0x58 [nvgpu] __nvgpu_readl+0x74/0xc8 [nvgpu] nvgpu_readl+0x28/0x60 [nvgpu] xxxxx_ce_get_num_pce+0x28/0x70 [nvgpu] xxxxx_fifo_init_eng_method_buffers+0x64/0x1c0 [nvgpu] gk20a_tsg_open+0x110/0x1e0 [nvgpu] nvgpu_ioctl_tsg_open+0x88/0x100 [nvgpu] gk20a_ctrl_dev_ioctl+0x734/0x2388 [nvgpu] do_vfs_ioctl+0xc4/0x918 SyS_ioctl+0x94/0xa8 This change fixes this issue by calling gk20a_busy()/gk20a_idle() in nvgpu_ioctl_tsg_open() Bug 2268533 JIRA NVGPU-1016 Change-Id: I578289e7eb60295d6b6169b754a5cc60f7546fd5 Signed-off-by: Preetham Chandru Ramchandra <pchandru@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1794324 Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Move Linux files away from commonTerje Bergstrom2018-06-15
Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
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