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path: root/drivers/gpu/nvgpu/common/mm/nvgpu_allocator.c
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* gpu: nvgpu: cleanup allocator debuggingAlex Waterman2017-08-28
| | | | | | | | | | | | | | | | | Remove debugging features that did not really get used and make the debugging code use the nvgpu_log() functionality. This ties the allocator debugging into the larger nvgpu debug framework. Also modify many of the places CONFIG_DEBUG_FS was used to conditionally compile allocator debug code to use __KERNEL__ instead. This is because that debug code can still be called even when debugfs is not present in Linux. Change-Id: I112ebe1cae22d6f8db96d023993498093e18d74a Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1544439 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: move debugfs code to linux moduleDeepak Nibade2017-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since all debugfs code is Linux specific, remove it from common code and move it to Linux module Debugfs code is now divided into below module specific files : common/linux/debug.c common/linux/debug_cde.c common/linux/debug_ce.c common/linux/debug_fifo.c common/linux/debug_gr.c common/linux/debug_mm.c common/linux/debug_allocator.c common/linux/debug_kmem.c common/linux/debug_pmu.c common/linux/debug_sched.c Add corresponding header files for above modules too And compile all of above files only if CONFIG_DEBUG_FS is set Some more details of the changes made - Move and rename gk20a/debug_gk20a.c to common/linux/debug.c - Move and rename gk20a/debug_gk20a.h to include/nvgpu/debug.h - Remove gm20b/debug_gm20b.c and gm20b/debug_gm20b.h and call gk20a_init_debug_ops() directly from gm20b_init_hal() - Update all debug APIs to receive struct gk20a as parameter instead of receiving struct device pointer - Update API gk20a_dmabuf_get_state() to receive struct gk20a pointer instead of struct device - Include <nvgpu/debug.h> explicitly in all files where debug operations are used - Remove "gk20a/platform_gk20a.h" include from HAL files which no longer need this include - Add new API gk20a_debug_deinit() to deinitialize debugfs and call it from gk20a_remove() - Move API gk20a_debug_dump_all_channel_status_ramfc() to gk20a/fifo_gk20a.c Jira NVGPU-62 Change-Id: I076975d3d7f669bdbe9212fa33d98529377feeb6 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1488902 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: Fix build failure in allocator.hAlex Waterman2017-05-24
| | | | | | | | | | | | | | | | Fix a build failure caused by missing definition for struct device. Instead of including device.h wrap the debugfs init function with CONFIG_DEBUG_FS and forward declare struct device. We don't use any struct device internals here so we only need to let the compiler know that this type does exist. Bug 200310575 Change-Id: I1ae45a8f191d920d9b606fefd5029fad84869cff Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1486012 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Scrub gk20a_platform dependenciesTerje Bergstrom2017-05-18
| | | | | | | | | | | | | | Remove gk20a_platform dependencies from gk20a.h. This makes gk20a_platform a Linux platform specific data structure. Add #include for platform_gk20a.h in the source files that still depend on Linux. JIRA NVGPU-16 Change-Id: Ib098accd34a1f5066eb8680c387f9b178169f3f0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1463547 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Put debugfs dependencies inside #ifdefTerje Bergstrom2017-04-24
| | | | | | | | | | | | | | | | | | | Put all debugfs dependencies inside #ifdef CONFIG_DEBUG_FS. This includes some functions in allocators that were used only for debugging. Remove include of linux/debugfs.h on files that do not deal with debugfs. linux/debugfs.h implicitly included linux/fs.h, which we relied on. Add explicit include of linux/fs.h for all files where this is the case. Change-Id: I16feffae6b0e3a2edf366075cdc01ade86be06f9 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1467897 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: Replace use of bitops.h and kernel.hTerje Bergstrom2017-04-12
| | | | | | | | | | | | | | | | | Remove use of linux/kernel.h and linux/compiler.h. We don't use anything in those headers. Also replace use of linux/bitops.h with new wrapper nvgpu/bitops.h. JIRA NVGPU-13 Change-Id: Iefa6b4598d5a5e7fc386c0a7a554e778a87010d6 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1460777 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: Remove vmalloc.h and slab.h usageAlex Waterman2017-04-04
| | | | | | | | | | | | | | Remove all usage of vmalloc.h and slab.h outside of the Linux specific kmem API implementation code. Bug 1799159 Bug 1823380 Change-Id: I5b2a91bd1057b272efeaddc24902f6133b35024f Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1331703 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Use new kmem API functions (common/*)Alex Waterman2017-03-26
| | | | | | | | | | | | | | | | | Use the new kmem API functions in common/* and common/mm/*. Add a struct gk20a pointer to struct nvgpu_allocator in order to store the gk20a pointer used for allocating memory. Bug 1799159 Bug 1823380 Change-Id: I881ea9545e8a8f0b75d77a1e35dd1812e0bb654e Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1318315 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: check return value of mutex_init in nvgpu_allocatorDeepak Nibade2017-03-14
| | | | | | | | | | | | | | | - check return value of nvgpu_mutex_init in nvgpu_allocator - add corresponding nvgpu_mutex_destroy calls Jira NVGPU-13 Change-Id: I1522b53fb4126fdc2b24fda4b86b45987fe3d203 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1317137 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: Unify the small and large page address spacesAlex Waterman2017-01-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The basic structure of this patch is to make the small page allocator and the large page allocator into pointers (where they used to be just structs). Then assign each of those pointers to the same actual allocator since the buddy allocator has supported mixed page sizes since its inception. For the rest of the driver some changes had to be made in order to actually support mixed pages in a single address space. 1. Unifying the allocation page size determination Since the allocation and map operations happen at distinct times both mapping and allocation of GVA space must agree on page size. This is because the allocation has to separate allocations into separate PDEs to avoid the necessity of supporting mixed PDEs. To this end a function __get_pte_size() was introduced which is used both by the balloc code and the core GPU MM code. It determines page size based only on the length of the mapping/ allocation. 2. Fixed address allocation + page size Similar to regular mappings/GVA allocations fixed address mapping page size determination had to be modified. In the past the address of the mapping determined page size since the address space split was by address (low addresses were small pages, high addresses large pages). Since that is no longer the case the page size field in the reserve memory ioctl is now honored by the mapping code. When, for instance, CUDA makes a memory reservation it specifies small or large pages. When CUDA requests mappings to be made within that address range the page size is then looked up in the reserved memory struct. Fixed address reservations were also modified to now always allocate at a PDE granularity (64M or 128M depending on large page size. This prevents non-fixed allocations from ending up in the same PDE and causing kernel panics or GMMU faults. 3. The rest... The rest of the changes are just by products of the above. Lots of places required minor updates to use a pointer to the GVA allocator struct instead of the struct itself. Lastly, this change is not truly complete. More work remains to be done in order to fully remove the notion that there was such a thing as separate address spaces for different page sizes. Basically after this patch what remains is cleanup and proper documentation. Bug 1396644 Bug 1729947 Change-Id: If51ab396a37ba16c69e434adb47edeef083dce57 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1265300 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* 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>
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