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* gpu: nvgpu: Exclude first page from vidmem sizeTerje Bergstrom2016-08-10
| | | | | | | | | | | | | | | | We initialized vidmem allocator with base=4K, and size of 4GB. This caused allocator to allocate addresses between 4K and 4GB+4K, causing a physical MMU fault. Bug 1793810 Change-Id: I554f62aeee4080acd86ef2c8011089ec9b8120df Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1196300 (cherry picked from commit 41a860e21c6da3f8fda58ceb56e78316f6987f53) Reviewed-on: http://git-master/r/1200712 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: Set PCI device node permissionsTerje Bergstrom2016-08-10
| | | | | | | | | | | | | Device nodes for PCI devices need to be RW for everybody. Bug 200225622 Change-Id: I14de9d17f76ca45ba525d0c4f5e8d448bbfda98b Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1198556 (cherry picked from commit 60bf9118715b61b8cd3f2379479caf280ae4e35c) Reviewed-on: http://git-master/r/1200713 Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Free the channel used semaphore indexLakshmanan M2016-08-10
| | | | | | | | | | | | | | | Free the channel used semaphore index during gk20a_free_channel(). Bug 1793819 Change-Id: I4215d05f7f3ba0636e2abb1803011711c8a38301 Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1196877 (cherry picked from commit 2c5720de506caac29629f6a1c578e6da80b1a135) Reviewed-on: http://git-master/r/1198883 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: post bpt events after processingDeepak Nibade2016-08-10
| | | | | | | | | | | | | | | | | | We currently post bpt events (bpt.int and bpt.pause) even before we process and clear the interrupts and this could cause races with UMD Fix this by posting bpt events only after we are done processing the interrupts Bug 200209410 Change-Id: Ic3ff7148189fccb796cb6175d6d22ac25a4097fb Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1184109 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: initialize local variableDeepak Nibade2016-08-04
| | | | | | | | | | | | | | | | | Initialize character array buf in gk20a_channel_ioctl() to zero Keeping it uninitialized can result in leaking kernel stack info to user space since we pass this buffer to UMD Bug 1793398 Change-Id: Iffd654dbaca3b4e3c8fd2ac270d0febd01c165b8 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1195862 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: Remove early exit from mmu faultCory Perry2016-08-01
| | | | | | | | | | | | | | | Disabling / enabling of PFIFO must stay inside the isr. It cannot be held disabled outside the isr -- this causes any kind of preemption mechanism to fail in the presence of an MMU fault until the channel resets the engine. Bug 1791696 Change-Id: I16600a8571f6555262a75deb305c1d67eb29581a Signed-off-by: Cory Perry <cperry@nvidia.com> Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1191026 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: move dbg_session_ops to gopsPeter Daifuku2016-07-30
| | | | | | | | | | | | | | Move dbg_session_ops to gops for better code consistency JIRA VFND-1905 Change-Id: I04a11d77dd8c26d9922e80e556822f80dd2bc36d Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com> Reviewed-on: http://git-master/r/1192641 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: Add preemption mode support for gp10xLakshmanan M2016-07-29
| | | | | | | | | | | | | | | Added preemption mode (WFI, GFXP, CTA and CILP) support for gp10x family gr class (PASCAL_B and PASCAL_COMPUTE_B). Bug 200221149 Change-Id: I859a4d2db518bca0ffeb0d85a6bb271f6b15db87 Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1193207 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Deepak Nibade <dnibade@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: add check for is_fmodelSeema Khowala2016-07-27
| | | | | | | | | | | | | | | | is_fmodel flag will be set in gk20a_probe(). Updated code for is_fmodel check, instead of check for supported simulated platforms. Bug 1735760 Change-Id: I7cbac2196130fe5ce4c1a910504879e6948c13da Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: http://git-master/r/1177869 Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Adeel Raza <araza@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Add is_fmodel flagSeema Khowala2016-07-27
| | | | | | | | | | | | | | | | | | Added is_fmodel flag in gk20a platform data and this flag is set to true for simulated gpu platforms. Bug 1735760 Change-Id: Ib04579d2e2990ee051039bfb741d6e50523d44ac Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: http://git-master/r/1177868 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Tejal Kudav <tkudav@nvidia.com> Reviewed-by: Ayoosh Bansal <ayooshb@nvidia.com> Reviewed-by: Adeel Raza <araza@nvidia.com>
* gpu: nvgpu: restore gk20a_scale_notifySachit Kadle2016-07-27
| | | | | | | | | | | | | | | Restores call to gk20a_scale_notify_busy() in gk20a_busy(), which was unintentionally removed in commit 6ac44d2813f5ab1873eb5148f26746a8f9dbd4a8 Bug 200187507 Change-Id: I96239d9e3e7cbd0911ebae358ec9dae39ec82566 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1191327 GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: make func gm20b_gr_tpc_disable_override globalRichard Zhao2016-07-27
| | | | | | | | | | | | | Bug 200220632 Change-Id: I75f628c54d68bbd06d5d8aeb32b8ee145411b8da Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1185067 (cherry picked from commit 0523a71eaac9dc7751f6e0e7d280b01f3a9e4ea3) Reviewed-on: http://git-master/r/1189784 Reviewed-by: Thomas Fleury <tfleury@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vladislav Buzov <vbuzov@nvidia.com>
* gpu: nvgpu: take platform power ref at power onSachit Kadle2016-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | Currently, host1x power refcount may decrement to 0, while GPU is still powered on and we're still servicing IRQs. So to prevent this situation,, take a ref while GPU is being powered on, and decrement it during power off. Since we are always holding one reference while GPU is powered on, we can remove this handling from gk20a_busy/idle() Bug 200187507 Change-Id: I249a4527178537c1dc53d769411f53c4451352c3 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1172320 (cherry picked from commit 3e27e6a5820f5c1ad05596553d75e8979b71f1bd) Reviewed-on: http://git-master/r/1172607 (cherry picked from commit 1e01a49fdc139b8cdf5164b4a6767d22ef4ad1d3) Reviewed-on: http://git-master/r/1185175 GVS: Gerrit_Virtual_Submit Reviewed-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: corner case failure handling in CE infra interfaceLakshmanan M2016-07-26
| | | | | | | | | | | | | | | | | This CL covers the following simple modification, 1) Linux kernel list implementation doesn't handle NULL pointer dereference at list_del() api. 2) NULL validation before access the command buffer related operations. This required for prevent the illegal/NULL memory access during gk20a_ce_create_context_with_cb() failure case. JIRA DNVGPU-53 Change-Id: I3ad178970ecb1485098124378bfc5256a9455ebd Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1184294 GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: check for valid function pointersseshendra Gadagottu2016-07-25
| | | | | | | | | | | | | | | | Before calling prod settings functions, check for availability of those functions. Similar check is extended for get_clk_freqs. Bug 1735760 Change-Id: Ic4b38079043ab2049a479a2d8bb0cb6091e94f4a Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1181571 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Adeel Raza <araza@nvidia.com>
* gpu: nvgpu: avoid host1x device dependencyseshendra Gadagottu2016-07-25
| | | | | | | | | | | | | | | | | Create sysfs nodes for gpu under host1x, only when host1x device dependncy present. For all gpus create syfs nodes under generic gpu name "gpu.0" Bug 1735760 Change-Id: I4b4a984139e0c33feadd95613c2f2076bc2db33b Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1181068 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Adeel Raza <araza@nvidia.com>
* nvgpu: rename Kconfig to Kconfig.nvgpudmitry pervushin2016-07-22
| | | | | | | | | | | | | Bug 1783210 Signed-off-by: dmitry pervushin <dpervushin@nvidia.com> Change-Id: Ie62dc86e6dc64c4dd939b54f806df557891fee9d Reviewed-on: http://git-master/r/1175284 Reviewed-on: http://git-master/r/1177293 GVS: Gerrit_Virtual_Submit Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com> Tested-by: Alexander Van Brunt <avanbrunt@nvidia.com> Reviewed-on: http://git-master/r/1183065
* nvgpu: rename Makefile to Makefile.nvgpudmitry pervushin2016-07-22
| | | | | | | | | | | | | Bug 1783210 Signed-off-by: dmitry pervushin <dpervushin@nvidia.com> Change-Id: I08e3ffb6b59ab145588a5ecf81b6c2346a481628 Reviewed-on: http://git-master/r/1175267 Reviewed-on: http://git-master/r/1177292 GVS: Gerrit_Virtual_Submit Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com> Tested-by: Alexander Van Brunt <avanbrunt@nvidia.com> Reviewed-on: http://git-master/r/1183064
* gpu: nvgpu: add aperture and size to map loggingKonsta Holtta2016-07-22
| | | | | | | | | | | | Include the buffer aperture flag (sysmem/vidmem/invalid) and the size of the buffer and of the mapping in logging strings during gmmu map path. Change-Id: Ie4c46bf9cb5db79b738571029d46ce8cbfc63f99 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1189492 GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Full chip support for ctxswneha2016-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | nvgpu changes needed to handle the newly added ctxsw lists Fix regops support for ppc registers Squashed from: Change-Id: I08e6dec3bb2f7aa51de912c9d1c84a350ce07f72 Signed-off-by: neha <njoshi@nvidia.com> Reviewed-on: http://git-master/r/1151010 (cherry picked from commit fd03ad9f09e66f78db88fb7ece448e26e0515821) and: Change-Id: I75a7f810ee0b613c22ac2cef2d936563d8067f97 Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com> Reviewed-on: http://git-master/r/1158888 (cherry picked from commit f00a7fcc57fb937b800e46760087ff6f7637520c) Bug 200180000 Bug 1771830 Reviewed-on: http://git-master/r/1164397 (cherry picked from commit 7028f051e4f37edeff90a9923f022cec6c645a8f) Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com> Change-Id: I796ddf93ef37170843a4a6b44190cd6780d25852 Reviewed-on: http://git-master/r/1183588 Reviewed-by: Vladislav Buzov <vbuzov@nvidia.com> GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: Ensure PDE alignment for GVA spacesAlex Waterman2016-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When managing GVA spaces the buddy allocator requires PDE size alignment. This is to ensure that PTE size in buddies always remains consistent. Consider the following hypothetical GVA space: it is 32 elements long, order 0 block size is 1, and PDE size is 8. This leads to: Base: 8 Size: 24 Managed space: [8, 32) The start of the space will be 8 (base must be aligned to a PDE and we need a hole at the bottom for handling errors). Size is simply the max, 32, minus what we cut out for the low hole. The two top level buddies are [8 -> 24), and [24 -> 32). Now, suppose, instead the base were 4: Base: 4 Size: 28 Managed space: [4, 32) The top level buddies would be [4 -> 20), [20 -> 28), and [28 -> 32). This presents several problems: none of the buddies are PDE aligned and one top level buddy is smaller than the PDE size. The simplest issue is how to determine the PTE size of the [28 -> 32) block. We can just set it as small but that's not ideal. The bigger issue is the mis-alignment of the larger buddies. [20 -> 28) is halfway in one PDE and halfway in another. That means the allocator would have to manage the two sub-buddies [20 -> 24) and [24 -> 28) separately. Instead of dealing with the above issues in the allocator it is much more simple to require that any GVA space is PDE aligned since they are already massive and already, in practice, have this alignment. Change-Id: I9eacd2db6485291db9f9f1d6c4c03c2a5c22de03 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1185137 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Use consistent definition for PTE sizeAlex Waterman2016-07-22
| | | | | | | | | | | | | | In the buddy allocator the BALLOC_PTE_SIZE_* macros are inconsistent with the gmmu_page_size_* enum. This patch makes the buddy allocator use the gmmu_page_size_* fields and now has only BALLOC_PTE_SIZE_ANY for when the allocator does not care about PTE size. Change-Id: Idbe727b8208e1ace2b947d67f698c471782d5587 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1185136 Reviewed-by: Konsta Holtta <kholtta@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: fix pri_is_be_addrPeter Daifuku2016-07-22
| | | | | | | | | | | | | | | | | | Correct the formula used to determine the range for BE registers Bug 1778245 Change-Id: I5443b3e68d920cecd031a9b154ed90f26e5251b2 Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com> Reviewed-on: http://git-master/r/1170602 (cherry picked from commit 813a08f1aa758d718987b4e6f2cf2ac8d15a1611) Reviewed-on: http://git-master/r/1177828 (cherry picked from commit de8239a5c6241419b98276a5f549ed8cfd7f4cf9) Reviewed-on: http://git-master/r/1181500 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: support userspace vidmem mappingsKonsta Holtta2016-07-21
| | | | | | | | | | | | | | | | | | | When mapping a userspace buffer, determine if it was vidmem allocated from the aperture of the current gpu, and pass that information into page tables. Mapping a vidmem buffer to a gpu it wasn't allocated from is disallowed. This includes mapping vidmem to igpus and to possibly other dgpus on the system. Jira DNVGPU-19 Change-Id: Ia9d2d0133e77659ab96b36ed61eeb4cd5a2b7dff Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1169309 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: add vidmem allocation ioctlKonsta Holtta2016-07-21
| | | | | | | | | | | | | | | | | | Add NVGPU_GPU_IOCTL_ALLOC_VIDMEM to the ctrl fd for letting userspace allocate on-board GPU memory (aka vidmem). The allocations are returned as dmabuf fds. Also, report the amount of local video memory in the gpu characteristics. Jira DNVGPU-19 Jira DNVGPU-38 Change-Id: I28e361d31bb630b96d06bb1c86d022d91c7592bc Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1181152 GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: add vidmem managerKonsta Holtta2016-07-21
| | | | | | | | | | | | | | | Use the nvgpu-internal buddy allocator for video memory allocations, instead of nvmap. This allows better integration for copyengine, BAR1 mapping to userspace, etc. Jira DNVGPU-38 Change-Id: I9fd67b76cd39721e4cd8e525ad0ed76f497e8b99 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1181151 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@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: Add nvgpu infra to allow kernel to create privileged CE channelsLakshmanan M2016-07-20
| | | | | | | | | | | | | Added interface to allow kernel to create privileged CE channels for page migration and clearing support between sysmem and videmem. JIRA DNVGPU-53 Change-Id: I3e18d18403809c9e64fa45d40b6c4e3844992506 Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1173085 GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: unset get_phys_addr_bits for dGPUThomas Fleury2016-07-20
| | | | | | | | | | | | | | | Unset get_phys_addr_bits as PCIe devices do not need to care if SMMU is enabled or not. Jira VFND-1965 Change-Id: I358834863fb365092904da219be80d764f6af8ec Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1183089 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: reserve wpr from allocatorKonsta Holtta2016-07-20
| | | | | | | | | | | | | | | | | | | | | In addition to nonwpr_base address, allocate also the wpr_base that is configured as wpr, in order to not overlap user allocations on that area. This patch adds just the wpr region's mem_desc field available. For devices that use the wpr separately, the field is used for that alloc. Jira DNVGPU-18 Change-Id: I4a7523f2af2379ee38bdd34cb8ca2d81360dff7b Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1182873 Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* nvgpu: gk20a: Fix Sparse warningMinal Ugale2016-07-19
| | | | | | | | | | | | | | | | Fixed the following warning: - gk20a.c:147:5: warning: symbol 'gk20a_railgating_debugfs_init' was not declared ? Bug 200067946 Bug 200088648 Change-Id: Ic7b1a24cee5066249e7d25db87a3e1569a608e6c Signed-off-by: Minal Ugale <mugale@nvidia.com> Reviewed-on: http://git-master/r/1183272 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Sachin Nikam <snikam@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>
* gpu: nvgpu: process granularity for FECS tracesThomas Fleury2016-07-19
| | | | | | | | | | | | | | | | | | | | | | | When processing FECS traces, a hash table is used to retrieve the 'pid' of the process that created the channel/TSG. Report process identifer (aka tgid in kernel) instead of thread identifier (aka pid) for FECS traces. Bug 1736423 Change-Id: I54cb9d298b9fe3e1cccdd7145604cd01c5758c9d Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1166501 (cherry picked from commit f7fd1f6d7ad0753b787ec20604a08a1f4882fe6f) Reviewed-on: http://git-master/r/1168728 (cherry picked from commit 97a62e5b89352fce576f1bca71b38bf2242ff047) Reviewed-on: http://git-master/r/1177823 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: add ref counting for GPU sched ctrlThomas Fleury2016-07-19
| | | | | | | | | | | | | | | Jira VFND-1968 Change-Id: Id84c5732e312e44db3d412df5c21e429227dd7fa Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1171286 (cherry picked from commit 13a3a4355914635ed175708affef17dc8ef0b133) Reviewed-on: http://git-master/r/1177824 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: add sched control APIThomas Fleury2016-07-19
| | | | | | | | | | | | | | | | | | | | | | | Added a dedicated device node to allow an app manager to control TSG scheduling parameters: - Get list of TSGs - Get list of recent TSGs - Get list of TSGs per pid - Get TSG current scheduling parameters - Set TSG timeslice - Set TSG runlist interleave Jira VFND-1586 Change-Id: I014c9d1534bce0eaea6c25ad114cf0cff317af79 Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1160384 (cherry picked from commit 75ca739517cc7f7f76714b5f6a1a57c39b8cb38e) Reviewed-on: http://git-master/r/1167021 Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: fix gk20a_mm_smmu_vaddr_translate()Richard Zhao2016-07-18
| | | | | | | | | | | | | | | - remove checking of has_physical_mode - check whether get_physical_addr_bits is null JIRA VFND-1965 Change-Id: If19b297dc853b9e0b5879c5b2e0a350b5d9b279a Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1175738 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Thomas Fleury <tfleury@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vladislav Buzov <vbuzov@nvidia.com>
* gpu: nvgpu: Debugfs support for Railgating stats.Deepak Goyal2016-07-18
| | | | | | | | | | | | | | | | | | This patch calculates: -Total time spent by GPU with rails gated. -Total time spent by GPU with rails ungated. -Total Railgating Cycles. and dumps this information in debugfs file. This feature requires CONFIG_DEBUG_FS set to true. Bug 200195100 Change-Id: I1379f11237ce4900076947e18524caaa3304c7cb Signed-off-by: Deepak Goyal <dgoyal@nvidia.com> Reviewed-on: http://git-master/r/1178308 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: use nvgpu_free for gpfifo pipe cleanup on errorKonsta Holtta2016-07-18
| | | | | | | | | | | | | | | Replace kfree with nvgpu_free in error handling path in gk20a_alloc_channel_gpfifo where the gpfifo pipe buffer is being allocated, because it's allocated with nvgpu_alloc. Jira DNVGPU-21 Change-Id: I73100394b67da2ab064e4e9df6b430d818abce56 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1182401 GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: gk20a: Add fuse.h headerShreshtha SAHU2016-07-17
| | | | | | | | | | | | Add "soc/tegra/fuse.h" to include declaration of tegra_get_chip_id() for kernel version 4.4 and higher as upstream fuse header is not available in older kernel versions. Change-Id: Ib83fc6965bc46bb729eab1cc583b9c963f501738 Signed-off-by: Shreshtha SAHU <ssahu@nvidia.com> Reviewed-on: http://git-master/r/1180686 GVS: Gerrit_Virtual_Submit Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: fix sparse warningSachit Kadle2016-07-16
| | | | | | | | | | | | | | | | Add static qualifier to nvgpu_pci_pm_init, as it is only used within the current file. Bug 200067946 Bug 200088648 Change-Id: Ifb7d3ec174a9f8eea0ac53421c953761886f48c6 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1181867 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com> Tested-by: Sachin Nikam <snikam@nvidia.com>
* kernel: nvgpu: fix Coverity defectGeorge Bauernschmidt2016-07-14
| | | | | | | | | | | | | | | Bug 1781383 CID 37989 - Changed for_each_set_bit addr parameter to unsigned long. Change-Id: I3f3f314a1aea9d376d45699f870a9e372854f069 Signed-off-by: George Bauernschmidt <georgeb@nvidia.com> Reviewed-on: http://git-master/r/1177417 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: handle map/unmap for vidmem gmmu pagesKonsta Holtta2016-07-14
| | | | | | | | | | | | | | | If page tables are allocated from vidmem, cpu cache flushing doesn't make sense, so skip it. Unify also map/unmap actions if the pages are not mapped. Jira DNVGPU-20 Change-Id: I36b22749aab99a7bae26c869075f8073eab0f860 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1178830 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: vgpu: add pm qos supportRichard Zhao2016-07-14
| | | | | | | | | | | | | | | | | Send cmd to RM server to change clk rate when PM_QOS_GPU_FREQ_BOUNDS max changes. Bug 200206160 Change-Id: I7f19e5f711426517baf8e7f934bf41972012644b Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1172792 (cherry picked from commit 973c258fd85449c3862df2498362e358fd3682c9) Reviewed-on: http://git-master/r/1180892 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: enable runtime pm for pciSachit Kadle2016-07-14
| | | | | | | | | | | | | | | | | | | | | Enable runtime power management ops for PCIe devices, and move gk20a_pm_finalize_poweron call into the resume routine. This change only implements suspend as a stub, as suspend/resume has not yet been verified for dGPU Bug 1785512 Bug 200187507 Change-Id: I076bafc03c6b4ba10dce874804ed3fd0b9c7b0d8 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1179860 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Thomas Fleury <tfleury@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Richard Zhao <rizhao@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: set has_physical_mode only if running on native linuxRichard Zhao2016-07-13
| | | | | | | | | | | | | | | Set has_physical_mode if running on native linux for better performance. Set it false if running on native gpu but on linux-hv, as the driver can not get real physical address. JIRA VFND-1965 Change-Id: I6e0322e64ad14d35d179a33e979157b53d77005a Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1175739 GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Vladislav Buzov <vbuzov@nvidia.com>
* gpu: nvgpu: zero vidmem pages on allocationKonsta Holtta2016-07-12
| | | | | | | | | | | | | | The allocator doesn't give us empty pages, so make sure that they're full of zeros, just like the sysmem alloc path does. Jira DNVGPU-16 Change-Id: I0ff8a0718829b13973535ba1111a8a11b91be04d Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1178829 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-29 21:43:01 -0400