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* gpu: nvgpu: Move allocators to common/mm/Alex Waterman2017-01-09
| | | | | | | | | | | | | | | | | | | Move the GPU allocators to common/mm/ since the allocators are common code across all GPUs. Also rename the allocator code to move away from gk20a_ prefixed structs and functions. This caused one issue with the nvgpu_alloc() and nvgpu_free() functions. There was a function for allocating either with kmalloc() or vmalloc() depending on the size of the allocation. Those have now been renamed to nvgpu_kalloc() and nvgpu_kfree(). Bug 1799159 Change-Id: Iddda92c013612bcb209847084ec85b8953002fa5 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1274400 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Remove global debugfs variableAlex Waterman2016-10-26
| | | | | | | | | | | | | | | Remove a global debugfs variable and instead save the allocator debugfs root node in the gk20a struct. Bug 1799159 Change-Id: If4eed34fa24775e962001e34840b334658f2321c Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1225611 (cherry picked from commit 1908fde10bb1fb60ce898ea329f5a441a3e4297a) Reviewed-on: http://git-master/r/1242390 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: support free space query in allocatorsKonsta Holtta2016-10-14
| | | | | | | | | | | | | | | | Add gk20a_alloc_space() to query the amount of free memory in bytes in gk20a_allocator. Bug 1787771 Bug 200233138 Change-Id: Ia381cafd5d2dbf394072d07be96991974f9289ae Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1223760 (cherry picked from commit 0c7fd96acc3e3d581bd25ccbe40b0821a310760f) Reviewed-on: http://git-master/r/1235978 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Allow carveouts to be made in allocatorsAlex Waterman2016-09-20
| | | | | | | | | | | | | | | | Allow allocators to have regions of memory (carveouts) reserved from allocation. Bug 1799159 Jira DNVGPU-84 Change-Id: Id103e60ed1a6e63c433d1cf610c9f15227595750 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1200060 (cherry picked from commit 95f7c16b6fb49a570139a3a51828a9bca1c0abc8) Reviewed-on: http://git-master/r/1223452 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: implement lockless allocatorSachit Kadle2016-09-20
| | | | | | | | | | | | | | | | Implement a lockless allocator for fixed-size data structures. Bug 1795076 Change-Id: I70a5f52cbdb4452cc0fd9a8edf26735be29ede57 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1213211 (cherry picked from commit e4bff7da0f39c8f4b5691169c02e482bc9d4166e) Reviewed-on: http://git-master/r/1223246 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: unify nvgpu and pci probeDeepak Nibade2016-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have completely different versions of probe for nvgpu and pci device Extract out common steps into nvgpu_probe() function and separate it out in new file nvgpu_common.c Divide task of nvgpu_probe() into further smaller functions Do platform specific things (like irq handling, memresource management, power management) only in individual probes and then call nvgpu_probe() to complete the common initialization Move all debugfs initialization to common gk20a_debug_init() This also helps to bringup all debug nodes to pci device Pass debugfs_symlink name as a parameter to gk20a_debug_init() This allows us to set separate debugfs symlink for nvgpu and pci device In case of railgating, cde and ce debugfs, check if platform supports them or not Copy vidmem_is_vidmem from platform to mm structure and set it to true for pci device Return from gk20a_scale_init() if we don't have either of governor or qos_notifier Fix gk20a_alloc_debugfs_init() and gk20a_secure_page_alloc() to receive device pointer instead of platform_device Export gk20a_railgating_debugfs_init() so that we can call it from gk20a_debug_init() Jira DNVGPU-56 Jira DNVGPU-58 Change-Id: I3cc048082b0a1e57415a9fb8bfb9eec0f0a280cd Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1204207 (cherry picked from commit add6bb0a3d5bd98131bbe6f62d4358d4d722b0fe) Reviewed-on: http://git-master/r/1204462 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Turn the debug macro back to pr_infoAlex Waterman2016-08-30
| | | | | | | | | | | | | | | | Instead of having the debug prints from the allocators be warnings they should be just regular prints. Bug 1799159 Change-Id: Ic6e3c38fa286c4acd6fcba51dc59158dc2d655fc Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1201372 (cherry picked from commit 107caf4ce68a7c76023ee1e66a98c5570f401059) Reviewed-on: http://git-master/r/1208478 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Clarify comment in allocator codeAlex Waterman2016-08-30
| | | | | | | | | | | | | | | | | One of the flags that is defined for allocators has not yet been imlpemented. This clarifies the comment and explains why the flag has been defined even though it is not yet implemented. Bug 1799159 Change-Id: I1e84439d63ca391941cee8e5362ffd9cc959744b Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1201371 (cherry picked from commit 8e6566b173f17d9c169a9fa0f6104f4bbf608dc1) Reviewed-on: http://git-master/r/1208477 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Implement a vidmem allocatorAlex Waterman2016-08-30
| | | | | | | | | | | | | | | | | | | Implement an allocator suitable for managing the video memory on dGPUs. It works by allocating chunks from an underlying buddy allocator and collating the chunks together (similar to what an sgt does in the wider Linux kernel). This handles the ability to get large buffers in potentially fragmented memory. The GMMU can then obviously map the physical vidmem into contiguous GVA spaces. Jira DNVGPU-96 Change-Id: Ic1d7800b033a170b77790aa23fad6858443d0e89 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1197203 (cherry picked from commit fa44684a843956ae384fef6d7a79b9cbbd04f73e) Reviewed-on: http://git-master/r/1185231 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fix warnings in allocator patchesAlex Waterman2016-07-20
| | | | | | | | | | | Fix some checkpatch warnings and copyright issues. Change-Id: I841492d1e83ced3483b559ad4d9c4404d1adb83f Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1183570 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Implement a bitmap allocatorAlex Waterman2016-07-19
| | | | | | | | | | | | | | | | | | | | | | Implement a bitmap allocator for GPU use. This allocator is useful for managing memory (or resource) regions where the buddy allocator is not ideal. Some instances are small regions or where the resource management must not make calls to the kernel's memory allocation routines (anything that ultimately calls alloc_page()). The code path where this avoidance of alloc_page() is most required is the gpfifo submit path. In order to keep this routine fast and have predicable time constraints no alloc_page() calls is necessary. The buddy allocator does not work for this since every time a buddy is allocated there is the possibility that a pair (or more) buddy structs have to be made. These allocs could perhaps require a call into alloc_page() if there is not enouch space in the kmem_cache slab for the buddy structs. Change-Id: Ia46fce62d4bdafcebbc153b21b515cb51641d241 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1176446 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: smarter debugging for allocatorsAlex Waterman2016-07-19
| | | | | | | | | | | Allow individual allocacators to be debugged without enabling debugging on all allocators. The ALLOCATOR_DEBUG define will still work as expected and enable debugging for all allocators that see this define. Change-Id: I0d59fa29affeaac15381e65d4128e7bef2f15bd5 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1178689 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Change the allocator flag naming schemeAlex Waterman2016-07-19
| | | | | | | | | Move to a more generic name of GPU_ALLOC_*. Change-Id: Icbbd366847a9d74f83f578e4d9ea917a6e8ea3e2 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1176445 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Move buddy allocator to new fileAlex Waterman2016-07-19
| | | | | | | | | | | | | Move the buddy allocator implementation to a new file to make the code more organized. Also, as part of this, commonize some macros and functions which will be used by future allocator implementations. Bug 1781897 Change-Id: I1611534d5d872bf3b4677f7a1cc024a94b1c437e Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1172116 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Support multiple types of allocatorsAlex Waterman2016-07-19
| | | | | | | | | | | | | | | | | | | | | | Support multiple types of allocation backends. Currently there is only one allocator implementation available: a buddy allocator. Buddy allocators have certain limitations though. For one the allocator requires metadata to be allocated from the kernel's system memory. This causes a given buddy allocation to potentially sleep on a kmalloc() call. This patch has been created so that a new backend can be created which will avoid any dynamic system memory management routines from being called. Bug 1781897 Change-Id: I98d6c8402c049942f13fee69c6901a166f177f65 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1172115 GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* Revert "Revert "Revert "Revert "gpu: nvgpu: New allocator for VA space""""Bharat Nihalani2015-06-04
| | | | | | | | | | | | | | | This reverts commit 2e5803d0f2b7d7a1577a40f45ab9f3b22ef2df80 since the issue seen with bug 200106514 is fixed with change http://git-master/r/#/c/752080/. Bug 200112195 Change-Id: I588151c2a7ea74bd89dc3fd48bb81ff2c49f5a0a Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-on: http://git-master/r/752503 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "Revert "Revert "gpu: nvgpu: New allocator for VA space"""Bharat Nihalani2015-06-02
| | | | | | | | | | | This reverts commit ce1cf06b9a8eb6314ba0ca294e8cb430e1e141c0 since it causes GPU pbdma interrupt to be generated. Bug 200106514 Change-Id: If3ed9a914c4e3e7f3f98c6609c6dbf57e1eb9aad Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-on: http://git-master/r/749291
* Revert "Revert "gpu: nvgpu: New allocator for VA space""Alex Waterman2015-05-19
| | | | | | | | | | | | | | This reverts commit 7eb42bc239dbd207208ff491c3fb65c3d83274d8. The original commit was actually fine. Change-Id: I564ce6530ac73fcfad17dcec9c53f0353b4f02d4 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/743300 (cherry picked from commit e99aa2485f8992eabe3556f3ebcb57bdc8ad91ff) Reviewed-on: http://git-master/r/743301 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "gpu: nvgpu: New allocator for VA space"Terje Bergstrom2015-05-12
| | | | | | | | | | | This reverts commit 2e235ac150fa4af8632c9abf0f109a10973a0bf5. Change-Id: I3aa745152124c2bc09c6c6dc5aeb1084ae7e08a4 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/741469 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Hiroshi Doyu <hdoyu@nvidia.com> Tested-by: Hiroshi Doyu <hdoyu@nvidia.com>
* gpu: nvgpu: New allocator for VA spaceAlex Waterman2015-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement a new buddy allocation scheme for the GPU's VA space. The bitmap allocator was using too much memory and is not a scaleable solution as the GPU's address space keeps getting bigger. The buddy allocation scheme is much more memory efficient when the majority of the address space is not allocated. The buddy allocator is not constrained by the notion of a split address space. The bitmap allocator could only manage either small pages or large pages but not both at the same time. Thus the bottom of the address space was for small pages, the top for large pages. Although, that split is not removed quite yet, the new allocator enables that to happen. The buddy allocator is also very scalable. It manages the relatively small comptag space to the enormous GPU VA space and everything in between. This is important since the GPU has lots of different sized spaces that need managing. Currently there are certain limitations. For one the allocator does not handle the fixed allocations from CUDA very well. It can do so but with certain caveats. The PTE page size is always set to small. This means the BA may place other small page allocations in the buddies around the fixed allocation. It does this to avoid having large and small page allocations in the same PDE. Change-Id: I501cd15af03611536490137331d43761c402c7f9 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/740694 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Per-alloc alignmentTerje Bergstrom2015-03-18
| | | | | | | Change-Id: I8b7e86afb68adf6dd33b05995d0978f42d57e7b7 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/554185 GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: Replace allocator with bitmap allocTerje Bergstrom2015-03-18
| | | | | | | | Replace gk20a allocator with Linux bitmap allocator. Change-Id: Iba5e28f68ab5cf19e2c033005efd7f9da6e4a5b6 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/554184
* gpu: nvgpu: rename gpu ioctls and structs to nvgpuKonsta Holtta2015-03-18
| | | | | | | | | | | | | | To help remove the nvhost dependency from nvgpu, rename ioctl defines and structures used by nvgpu such that nvhost is replaced by nvgpu. Duplicate some structures as needed. Update header guards and such accordingly. Change-Id: Ifc3a867713072bae70256502735583ab38381877 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/542620 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Remove unused code in allocatorTerje Bergstrom2015-03-18
| | | | | | | | | | Remove functions that are not used in gk20a allocator. Bug 1523403 Change-Id: I36b2b236258d61602cb3283b59c43b40f237d514 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/432174
* gpu: nvgpu: Add NVIDIA GPU DriverArto Merilainen2015-03-18
This patch moves the NVIDIA GPU driver to a new location. Bug 1482562 Change-Id: I24293810b9d0f1504fd9be00135e21dad656ccb6 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/383722 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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