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path: root/drivers/gpu/nvgpu/gk20a/gk20a_allocator.c
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* gpu: nvgpu: make functions as staticAlankrita G2015-06-23
| | | | | | | | | | | | | | | | - Fixed the following sparse warnings by making the local function as static: warning: symbol 'balloc_alloc_buddy' was not declared. Should it be static? Bug 200067946 Change-Id: I6eeb71f6c0d5fbfb99f6c43bbc4504fea1bc8d46 Signed-off-by: Alankrita G <alankritag@nvidia.com> Reviewed-on: http://git-master/r/746583 Reviewed-by: Sachin Nikam <snikam@nvidia.com> Reviewed-on: http://git-master/r/760446 Reviewed-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com> Tested-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Check for split_order > max_orderAlex Waterman2015-06-11
| | | | | | | | | | | | | | When choosing an order of buddy to start splitting from (happens when no buddies of the requested alloc order exist) don't sit in the while loop past max_order. This makes no sense and hangs the system. Bug 1647902 Change-Id: I6900597d24944d3170bc76cd75f33794b07707d1 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/756591 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Swap order of free/rb_eraseAlex Waterman2015-06-11
| | | | | | | | | | | | | | | | If rb_erase() is called after __balloc_do_free_fixed() then the rb_tree code crashes when trying to dereference the possibly changed (or poisoned in the case of debugging) data in the rb_node. Change-Id: I4a4456a5ec453fd9ab117c804dc19b2c048a61d4 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/755646 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Krishna Reddy <vdumpa@nvidia.com> Reviewed-by: Ian Stewart <istewart@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/755816 Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fix OOM case for buddy allocatorAlex Waterman2015-06-06
| | | | | | | | | | | | | | | | | | | | | The allocator could attempt to use a buddy list for an order larger than the max order when all the valid buddy lists were empty. This patch ensures that when looking for a particular order buddy that the passed order is valid. Also handle the prints in the no-mem case a litle differently. Only print and update alloc info when there was a successful allocation. Lastly print hex numbers for the allocator stats printing function. Change-Id: If289f3e8925e236e3b7d84206a75bd45a14082a1 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/745071 (cherry picked from commit f3548e67f435975238b55ac152871dcd60a1a907) Reviewed-on: http://git-master/r/753280 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@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>
* gpu: nvgpu: fix compile error with ALLOCATOR_DEBUGDeepak Nibade2015-05-18
| | | | | | | | | | | | | | | Fix compile time error of missing argument when ALLOCATOR_DEBUG is enabled Bug 200095967 Change-Id: I600330f3a75cf777d9cd35ec1f00fdd926fba429 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/731320 GVS: Gerrit_Virtual_Submit Reviewed-by: Sri Krishna Chowdary <schowdary@nvidia.com> Tested-by: Sri Krishna Chowdary <schowdary@nvidia.com> Reviewed-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: Use vzalloc for bitmapTerje Bergstrom2015-04-04
| | | | | | | | | | | | Allocator bitmap is now larger, and cannot be allocated with kzalloc anymore. Bug 200081843 Change-Id: I9c978ddbdd796e4f1dd5719dbef3a6bd99e64f48 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/709884 Reviewed-by: Krishna Reddy <vdumpa@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: allocator: release semaphore on errorKonsta Holtta2015-03-18
| | | | | | | | | | | | Release rw_sema properly when block allocator runs out of memory and returns error. Change-Id: I6b7cf9564ae25ad1ba30edfcb1ae8a20cf7dc9db Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/601792 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* 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: 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: gk20a: add address check in allocator.Kevin Huang2015-03-18
| | | | | | | | | | | | | | Check the address range before allocation to avoid illegal address range. Bug 1523403 Change-Id: Iff171399a980b69f9b1a18eea5bc37eff4c5d749 Signed-off-by: Kevin Huang <kevinh@nvidia.com> Reviewed-on: http://git-master/r/437871 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* 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>
generated by cgit v1.2.2 (git 2.25.0) at 2024-07-17 00:53:01 -0400