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path: root/drivers/gpu/nvgpu/include/nvgpu/semaphore.h
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* gpu: nvgpu: allow bind to be interruptedDavid Nieto2017-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change solves two problems: (*) the possibility of a crash due to interrupting the gpu initialization following a bind (*) a IOVA memory leak that could prevent the GPU from binding after about 200 bind/unbind cycles A detailed list of fixes: - chek that arbiter is initialized before freeing it. - do not re-enable interrupts when MSI is enabled on unbind. - free the semaphore sea on unbind. - ensure we dont double load the vbios. - check return value of nvgpu_mutex_init for semaphores. - add corresponding nvgpu_mutex_destroy calls. bug 1816516 Change-Id: Ia8af73019e0e1183998855d55bb3eea09672a8b7 Signed-off-by: David Nieto <dmartineznie@nvidia.com> Reviewed-on: http://git-master/r/1465302 Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-by: David Jarrett <djarrett@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1563019 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Replace kref for refcounting in nvgpuDebarshi Dutta2017-08-24
| | | | | | | | | | | | | | | | - added wrapper struct nvgpu_ref over nvgpu_atomic_t - added nvgpu_ref_* APIs to access the above struct JIRA NVGPU-140 Change-Id: Id47f897995dd4721751f7610b6d4d4fbfe4d6b9a Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1540899 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: Add wrapper over atomic_t and atomic64_tDebarshi Dutta2017-08-17
| | | | | | | | | | | | | | | | | - added wrapper structs nvgpu_atomic_t and nvgpu_atomic64_t over atomic_t and atomic64_t - added nvgpu_atomic_* and nvgpu_atomic64_* APIs to access the above wrappers. JIRA NVGPU-121 Change-Id: I61667bb0a84c2fc475365abb79bffb42b8b4786a Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1533044 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: rename hw_chid to chidRichard Zhao2017-06-30
| | | | | | | | | | | | | hw_chid is a relative id for vgpu. For native it's same as hw id. Renaming it to chid to avoid confusing. Jira VFND-3796 Change-Id: I1c7924da1757330ace715a7c52ac61ec9dc7065c Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: https://git-master/r/1509530 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Move semaphore impl to nvgpu_memAlex Waterman2017-04-25
| | | | | | | | | | | | | | | | | | | Use struct nvgpu_mem for DMA allocations (and the corresponding nvgpu_dma_alloc_sys()) instead of custom rolled code. This migrates away from using linux scatter gather tables directly. Instead this is hidden in the nvgpu_mem struct. With this change the semaphore.c code no longer has any direct Linux dependencies. JIRA NVGPU-12 JIRA NVGPU-30 Change-Id: I92167c98aac9b413ae87496744dcee051cd60207 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1464081 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
* gpu: nvgpu: clean up linux list includesDeepak Nibade2017-04-19
| | | | | | | | | | | | | | | | Remove linux list includes <linux/list.h> and include <nvgpu/list.h> since we now use nvgpu list APIs instead of linux APIs Jira NVGPU-13 Change-Id: I59bd433a9bc5c15d4c40e6fe4b18cf44246ba3b2 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1462080 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add wrapper nvgpu/kref.hDeepak Nibade2017-04-17
| | | | | | | | | | | | | Add wrapper header file nvgpu/kref.h. It #includes <linux/kref.h> in Linux. JIRA NVGPU-13 Change-Id: Ib8b002268b1960646986551ecb9f286e1e21e7f6 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1463770 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Add wrapper nvgpu/bug.hTerje Bergstrom2017-04-13
| | | | | | | | | | | | | Add wrapper header file nvgpu/bug.h. It #includes <linux/bug.h> in Linux. JIRA NVGPU-13 Change-Id: I7bf02ba554333f7cbd79d72bd1cb423c81ebcb49 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1461545 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: use nvgpu list for semaphore listsDeepak Nibade2017-04-12
| | | | | | | | | | | | | Use nvgpu list APIs instead of linux list APIs for list of semaphore pools and h/w semaphores Jira NVGPU-13 Change-Id: I7ad3ec2db568eb4ab7e207e3109084391c9c0ee7 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1460578 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Add wrapper nvgpu/atomic.hTerje Bergstrom2017-04-12
| | | | | | | | | | | | | | | Add wrapper header file nvgpu/atomic.h. It #includes <linux/atomic.h> on Linux. JIRA NVGPU-13 Change-Id: I6f2b3a04c964e7664b1f61b6073b643629bd99c5 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1460792 Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: rename mem_desc to nvgpu_memAlex Waterman2017-04-06
| | | | | | | | | | | | | | | | | Renaming was done with the following command: $ find -type f | \ xargs sed -i 's/struct mem_desc/struct nvgpu_mem/g' Also rename mem_desc.[ch] to nvgpu_mem.[ch]. JIRA NVGPU-12 Change-Id: I69395758c22a56aa01e3dffbcded70a729bf559a Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1325547 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: debugging API updateAlex Waterman2017-04-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the debugging APIs in nvgpu to be more coherent and less dependent on Linux kernel APIs and data structures. The old API is maintained for backwards compatibility but the prints themselves are changed. The old API now prints stuff like this: [ 46.376077] nvgpu: gk20a_channel_suspend:3430 [DBG] suspend channel 508 [ 46.376242] nvgpu: gk20a_channel_suspend:3430 [DBG] suspend channel 509 [ 46.376359] nvgpu: gk20a_channel_suspend:3430 [DBG] suspend channel 510 [ 46.376466] nvgpu: gk20a_channel_suspend:3430 [DBG] suspend channel 511 [ 46.376604] nvgpu: gk20a_fifo_update_runlist_locked:3090 [DBG] runlist_id : 0, switch to new buffer 0x 4003a0000 [ 46.378348] nvgpu: gk20a_mm_l2_flush:5259 [DBG] l2_flush_dirty 0x2 [ 46.378562] nvgpu: clk_config_pll:170 [DBG] low_PL 1(div1), high_PL 2(div2) [ 46.378684] nvgpu: clk_config_pll:170 [DBG] low_PL 8(div8), high_PL 17(div17) Each line starts with 'nvgpu:' since this is the nvgpu driver. Then there's the function name which is is right justified and post-fixed with a line number. This keeps all statements lined up so long as the function name does not exceed the length of characters alloted for function names (33 currently). Lines are also left justified with 4 available spaces since there are currently no source files with over 9999 lines. The type of message (DBG, WRN, ERR) is then printed in brackets. Finally there's whatever message is to be printed. The new API will be largely the same except there will be an additional print of the GPU that the message has originated from in order to help debug cases where both an iGPU and dGPU are active. Also the implicit newline added in the legacy API has been removed. This is inline with essentially every other print function in the C world. There are numerous places where '\n' is added despite it not being needed which results in log files being littered with blank lines. This makes the logs much harder to read. Bug ... Change-Id: I7bc87f2dbbaebf6eb6c9de1a629a0e2963e1804c Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1329487 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: check return value of mutex_init for semaphoresDeepak Nibade2017-03-14
| | | | | | | | | | | | | | | - check return value of nvgpu_mutex_init for semaphores - add corresponding nvgpu_mutex_destroy calls Jira NVGPU-13 Change-Id: I5404dbd29e3fce29f1a445eb2e6ce8e1d1b616c4 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1317138 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Navneet Kumar <navneetk@nvidia.com>
* gpu: nvgpu: use common nvgpu mutex/spinlock APIsDeepak Nibade2017-02-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of using Linux APIs for mutex and spinlocks directly, use new APIs defined in <nvgpu/lock.h> Replace Linux specific mutex/spinlock declaration, init, lock, unlock APIs with new APIs e.g struct mutex is replaced by struct nvgpu_mutex and mutex_lock() is replaced by nvgpu_mutex_acquire() And also include <nvgpu/lock.h> instead of including <linux/mutex.h> and <linux/spinlock.h> Add explicit nvgpu/lock.h includes to below files to fix complilation failures. gk20a/platform_gk20a.h include/nvgpu/allocator.h Jira NVGPU-13 Change-Id: I81a05d21ecdbd90c2076a9f0aefd0e40b215bd33 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1293187 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Move from gk20a_ to nvgpu_ in semaphore codeAlex Waterman2017-02-13
| | | | | | | | | | | | | Change the prefix in the semaphore code to 'nvgpu_' since this code is global to all chips. Bug 1799159 Change-Id: Ic1f3e13428882019e5d1f547acfe95271cc10da5 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1284628 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com>
* gpu: nvgpu: Organize semaphore_gk20a.[ch]Alex Waterman2017-02-13
Move semaphore_gk20a.c drivers/gpu/nvgpu/common/ since the semaphore code is common to all chips. Move the semaphore_gk20a.h header file to drivers/gpu/nvgpu/include/nvgpu and rename it to semaphore.h. Also update all places where the header is inluced to use the new path. This revealed an odd location for the enum gk20a_mem_rw_flag. This should be in the mm headers. As a result many places that did not need anything semaphore related had to include the semaphore header file. Fixing this oddity allowed the semaphore include to be removed from many C files that did not need it. Bug 1799159 Change-Id: Ie017219acf34c4c481747323b9f3ac33e76e064c Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1284627 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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