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* gpu: nvgpu: cancel job clean up before aborting channelDeepak Nibade2016-07-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that when we abort the channel, we have job clean up worker running, which could race with abort and sometimes result in below panic [ 245.483566] Unable to handle kernel paging request at virtual address 800000000 ... [ 245.548991] PC is at gk20a_channel_abort_clean_up+0xb8/0x140 [ 245.554683] LR is at gk20a_channel_abort_clean_up+0xac/0x140 ... [ 247.301860] [<ffffffc000479390>] gk20a_channel_abort_clean_up+0xb8/0x140 [ 247.312853] [<ffffffc0004794d4>] gk20a_channel_abort+0xbc/0xc8 [ 247.322970] [<ffffffc0004794f8>] gk20a_disable_channel+0x18/0x30 [ 247.333267] [<ffffffc000479628>] gk20a_free_channel+0x118/0x584 [ 247.343473] [<ffffffc000479aa0>] gk20a_channel_close+0xc/0x14 [ 247.353479] [<ffffffc000479b80>] gk20a_channel_release+0xd8/0x104 Fix this by cancelling the job clean up worker before aborting the channel Bug 1777281 Change-Id: Ic24c7c03b27cfb5cd164a52efdb1e2813a41a10a Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1174416 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: take platform power ref at power onSachit Kadle2016-06-30
| | | | | | | | | | | | | | | | | | | | | 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: Idabe88754f009f1e8de8dc821d53be3e013dc657 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 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fixing sparse error/warningMahantesh Kumbar2016-06-29
| | | | | | | | | | | | | | - $TOP/kernel/nvgpu/drivers/gpu/nvgpu/gm206/acr_gm206.c:207:5: warning: symbol 'gm206_bootstrap_hs_flcn' was not declared. Should it be static? Bug 200067946 Change-Id: Idc8c464b03eb9a382f54095cd3e04786be19308c Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1172969 GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
* gpu: nvgpu: Revamp semaphore supportAlex Waterman2016-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revamp the support the nvgpu driver has for semaphores. The original problem with nvgpu's semaphore support is that it required a SW based wait for every semaphore release. This was because for every fence that gk20a_channel_semaphore_wait_fd() waited on a new semaphore was created. This semaphore would then get released by SW when the fence signaled. This meant that for every release there was necessarily a sync_fence_wait_async() call which could block. The latency of this SW wait was enough to cause massive degredation in performance. To fix this a fast path was implemented. When a fence is passed to gk20a_channel_semaphore_wait_fd() that is backed by a GPU semaphore a semaphore acquire is directly used to block the GPU. No longer is a sync_fence_wait_async() performed nor is there an extra semaphore created. To implement this fast path the semaphore memory had to be shared between channels. Previously since a new semaphore was created every time through gk20a_channel_semaphore_wait_fd() what address space a semaphore was mapped into was irrelevant. However, when using the fast path a sempahore may be released on one address space but acquired in another. Sharing the semaphore memory was done by making a fixed GPU mapping in all channels. This mapping points to the semaphore memory (the so called semaphore sea). This global fixed mapping is read-only to make sure no semaphores can be incremented (i.e released) by a malicious channel. Each channel then gets a RW mapping of it's own semaphore. This way a channel may only acquire other channel's semaphores but may both acquire and release its own semaphore. The gk20a fence code was updated to allow introspection of the GPU backed fences. This allows detection of when the fast path can be taken. If the fast path cannot be used (for example when a fence is sync-pt backed) the original slow path is still present. This gets used when the GPU needs to wait on an event from something which only understands how to use sync-pts. Bug 1732449 JIRA DNVGPU-12 Change-Id: Ic0fea74994da5819a771deac726bb0d47a33c2de Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1133792 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: set preempt state in golden ctx initThomas Fleury2016-06-28
| | | | | | | | | | | | | | | | | | Some parameters like gfxp_wfi_timeout are context switched. Once context has been initialized with default values (sw_ctx_load), we need to ensure that preemption state is properly set before saving golden ctx image. Bug 1593548 Jira VFND-1894 Change-Id: Ib1ba03f4ca1606302b1cf1f0738d3610a162a5c6 Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1168662 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add init_preemption_state gr methodThomas Fleury2016-06-28
| | | | | | | | | | | | | | | | | | This method is called when setting up gr hardware. It is meant to adjust preemption parameters. Bug 1593548 Jira VFND-1894 Change-Id: I0f5aa3212bec3058a0493366bed6fe2a365c9542 Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1162625 (cherry picked from commit c2e6d12570af28b3aae087401d7f670df40d40bd) Reviewed-on: http://git-master/r/1166987 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix coverity issues in sysfs/debugfsSeshendra Gadagottu2016-06-27
| | | | | | | | | | | | | | | | | | Fix coverity issues in debugfs related to null check before accessing data member. Fix coverity issues in sysfs related to error code over-write and unintilized error code. coverity ids: 20087564, 20087460, 20087461 Bug 200192125 Change-Id: If82288fca18464dca7093ce10f0beb1272489609 Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1171943 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add QoS notifier for common clk frameworkDeepak Nibade2016-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define specific QoS notifier for common clk framework and protect it with CONFIG_COMMON_CLK This new API will first get min/max requirements from pm_qos and set min/max freq values in devfreq A call to update_devfreq() will then ensure that new estimated frequency is clipped appropriately between min and max values This also ensures that frequency is set along with all the book-keeping Add below platform specific notifier callback and use it with pm_qos_add_notifier() int (*qos_notify)() If qos_notify is set, then only register the callback We currently support only one qos_id which is treated as notifier for min frequency Remove dependency on qos_id, and use appropriate QoS APIs like pm_qos_read_min/max_bound() Store devfreq's min/max frequency in struct gk20a for reference Bug 1772462 Change-Id: I63d6d17451d19c9d376b67df7db775b38929287d Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1161161 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: remove unused codeDeepak Nibade2016-06-27
| | | | | | | | | | | | | | | | In gk20a_tsg_bind_channel_fd(), API gk20a_get_channel_from_file() already handles converting a channel fd to channel Hence explicit fget(ch_fd) is not required and is unused Coverity id : 32386 Bug 200192125 Change-Id: I28674cebf088240b8b15129a22f6743c856ed88f Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1171713 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix fecs flush method existence checkThomas Fleury2016-06-24
| | | | | | | | | | | | | | | | | | Properly check that flush method exists. Before this change, it was inconditionnaly called from poll function by accident. Bug 1778951 Change-Id: Ibb8a5b7448bc4b7c475d60439e5b5bd1af9a12bf Signed-off-by: Thomas Fleury <tfleury@nvidia.com> Reviewed-on: http://git-master/r/1168144 (cherry picked from commit 178967b91f2632e5b84ce6d11e24f2a8f49c52ea) Reviewed-on: http://git-master/r/1170549 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: vgpu: Add CE engine to engine listTerje Bergstrom2016-06-24
| | | | | | | | | | | | | | | | | Add CE engine to vgpu engine list. CE engine is defined differently for different GPUs, so we also add HAL for initializing the engine info. Bug 1780185 Change-Id: I5ae265551feac08d0c4d45402dd3277514e62b2d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1169720 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com> Tested-by: Aingara Paramakuru <aparamakuru@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Lakshmanan M <lm@nvidia.com>
* gpu: nvgpu: Handle allocators with a base of 0Alex Waterman2016-06-23
| | | | | | | | | | | | | | | | When an allocator is created with a base of 0 the first allocated block could well be 0. This appears to be an error since gk20a_balloc() normally returns 0 for error cases. This patch removes one block from the allocatable resources when base is set to 0 so that code using gk20a_balloc() does not get tricked into thinking valid allocations are OOM cases. Change-Id: I641642d3f790c4c7860d0d1381f4db6f4f72e709 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1169764 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Compute reasonable max order for allocatorAlex Waterman2016-06-23
| | | | | | | | | | | | Compute a reasonable maximum order for buddy allocators that are created with a max_order of 0. Previously the max_order was just left as 0. Change-Id: I5c2f878fcd390610a4c02ac65189138ec7db30c8 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1169763 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add interface for privileged channel allocationLakshmanan M2016-06-23
| | | | | | | | | | | | | Added interface for privileged channel allocation to excute the privileged method (ex. CE phys mode transfer). JIRA DNVGPU-53 Change-Id: I07f9181720b14345cf5890919c2818dfcf505d86 Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1169315 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "gpu: nvgpu: reorder disable_irq"Deepak Nibade2016-06-23
| | | | | | | | | | | | | | | | | | | This reverts commit 6bbc169d33ae601b5947c1e54806b9f9bfa6054e. channel_suspend() might cause new interrupts to trigger, and if irqs are already disabled, then these interrupts will not get served Hence revert this patch, and move disable_irq() to original place Bug 200207867 Change-Id: I45617a1a0aa9a1f805dd937a34ebb572a61c05c0 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1169380 Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: fix issue with CONFIG_DEBUG_FS=nDavid Pu2016-06-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | following compilation error are reported with CONFIG_DEBUG_FS=n: pci.c:246:7: error: 'struct mm_gk20a' has no member named 'ltc_enabled' pci.c:247:7: error: 'struct mm_gk20a' has no member named 'ltc_enabled_debug' possible compilation error(reported sometime): gk20a_allocator.c:1163:13: error: 'gk20a_alloc_debugfs_init' defined but not used fixed by adding '#ifdef CONFIG_DEBUG_FS' for debug only code. following variables from gk20a.c are not initialized from CONFIG_DEBUG_FS=n path, it will cause kernel oops when booting: gk20a->mm.bypass_smmu = platform->bypass_smmu; gk20a->mm.disable_bigpage = platform->disable_bigpage; gk20a->mm.has_physical_mode = true; fix it by move them out from '#ifdef CONFIG_DEBUG_FS' section. Bug 1778001 Change-Id: Ic2da36b3f500882748ee46a5150903244b697761 Signed-off-by: David Pu <dpu@nvidia.com> Reviewed-on: http://git-master/r/1167358 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: vgpu: correct value of g->ltc_countRichard Zhao2016-06-22
| | | | | | | | | | | | | | | | ltc.init_fs_state was not called for vgpu, because vgpu has its own poweron function. fixed it. Bug 1778448 Change-Id: I023625c3e2efc86e72e9dcd04195c5d0b3d0eada Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1165969 (cherry picked from commit 3304b459593e92650cb772301e9c5745abb6c371) Reviewed-on: http://git-master/r/1169050 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: disable semaphore acquire timeout when channel wdt is disabledRichard Zhao2016-06-22
| | | | | | | | | | | | | | CUDA needs it disabled. Bug 1775453 Change-Id: Ic6d5050f9fda259337668e2a245c05e27d65e047 Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1162765 (cherry picked from commit 44b48d84e75ced2fd9eecebbe94a0289c527c0c2) Reviewed-on: http://git-master/r/1169049 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cancel channel wdt during suspendDeepak Nibade2016-06-22
| | | | | | | | | | | | | | | Cancel channel watchdog timeout during channel suspend This should help fix race conditions when watchdog is triggered during shutdown Bug 200209309 Change-Id: I6cf740d854c27985217a1a76afa822e3126d4153 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1168613 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: force clean patch ctx begin/endKonsta Holtta2016-06-22
| | | | | | | | | | | | | | | | | | | This patch_context map/unmap pair has become a mere wrapper for the more general gk20a_mem_{begin,end}(). To be consistent about mappings, require that each patch_write is surrounded by an explicit begin/end pair, instead of relying on possible inefficient per-write map/unmap. Remove also the cpu_va check from .._write_end() since the buffers may be exist in vidmem without a cpu mapping. JIRA DNVGPU-24 Change-Id: Ia05d52d3d712f2d63730eedc078845fde3e217c1 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1157298 GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: update get_netlist_name ops declarationMahantesh Kumbar2016-06-21
| | | | | | | | | | | | | | -update get_netlist_name ops declaration to support to load GPU FW based on GPU-ARCH -"GAxxx" string used to get size for "gm204/" or "gm206/" which will added to NETIMAGE path like "gm204/NETC_img.bin" Change-Id: I5bfa13df014533a885c4328d3c767e51c29f9255 Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1166783 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Sparse fixes in gpfifo_mem user gpfifoKonsta Holtta2016-06-21
| | | | | | | | | | | | | | 1) Keep the __user tag in the type of the user gpfifo when copying, 2) use NULL instead of 0 for initializing user_gpfifo pointer. Bug 200067946 Change-Id: I631b4bca44ded0900204134338fa1d62d0017df0 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1168441 GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: use gpfifo_mem via gk20a_mem_{rd,wr}Konsta Holtta2016-06-20
| | | | | | | | | | | | | | | | | | Use gk20a_mem_*() accessors for gpfifo memory in work submission instead of direct cpu accesses in order to support other apertures than sysmem. The gpfifo memory is still allocated from sysmem for dgpus too. Split the copying of priv_cmds and the main gpfifo to be submitted in gk20a_submit_channel_gpfifo() into separate functions. JIRA DNVGPU-21 Change-Id: If271ca8e7e34235f00d31855dbccf77c0008e10b Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1145923 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "gpu: nvgpu: Disable channel watchdog"Deepak Nibade2016-06-20
| | | | | | | | | | | | | | | | This reverts commit edd080b05ab118307c7c7b01426ea1e7c1cc9be7. Re-enable the watchdog since power management races are now resolved Bug 200198908 Change-Id: I74b97e564583aaedd858bc968adcfcaa275ea739 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1165746 GVS: Gerrit_Virtual_Submit Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: vgpu: disable batch map buffer in gpu characteristicsRichard Zhao2016-06-17
| | | | | | | | | | | | | | | vgpu has not implemented batch map buffer yet, so report it in gpu characteristics. Bug 200201431 Change-Id: Ia9bfd71735889706242f0c06a1c44c5ed318ab6d Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1157467 (cherry picked from commit c6999995f9a48f645d6ffb6b7361d29cf641e5e3) Reviewed-on: http://git-master/r/1156636 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: ngpu: gm206: use vidmem allocator for ucode blobKonsta Holtta2016-06-17
| | | | | | | | | | | | | Use the general video memory allocator for reserving wpr space for acr ucode blob instead of crafting a mem_desc manually. Jira DNVGPU-16 Change-Id: Ie1b1e4b76b9678a33f4ef10ddcbf85259bfab5fd Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1165643 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: vgpu: add read ptimer supportRichard Zhao2016-06-16
| | | | | | | | | | | | | Bug 1395833 Change-Id: Id0d427b6a1ddaecfeec33c61a6161679cf596c92 Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1159588 (cherry picked from commit d33aa89420990626fb377c56ed5517a00f717c2a) Reviewed-on: http://git-master/r/1158897 Reviewed-by: Thomas Fleury <tfleury@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add read_ptimer to gopsRichard Zhao2016-06-16
| | | | | | | | | | | | | | | Move all places that read ptimer to use the callback. It's for add vgpu implementation of read ptimer. Bug 1395833 Change-Id: Ia339f2f08d75ca4969a443fffc9a61cff1d3d2b7 Signed-off-by: Richard Zhao <rizhao@nvidia.com> Reviewed-on: http://git-master/r/1159587 (cherry picked from commit a01f804684f875c9cffc31eb2c1038f2f29ec66f) Reviewed-on: http://git-master/r/1158449 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Allow nvgpu sync_pts to be introspectedAlex Waterman2016-06-16
| | | | | | | | | | | | | | | Allow nvgpu to identify sync_pts that were made by nvgpu so that the underlying data structures can be accessed. This is important for the semaphore fast-path that allows nvgpu to skip doing a long CPU wait on a sync_fence. Bug 1732449 JIRA DNVGPU-12 Change-Id: Iea43de21d2d7a4e75db6b6dbf24efb78ce64d619 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1162688 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix nbsp in KconfigKonsta Holtta2016-06-16
| | | | | | | | | | | Replace an accidental non-breaking space character with a normal space, fixing the "ignoring unsupported character" build warning. Change-Id: Ib3faca8489f083bb0027a8cfea82b256221b4e43 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1165134 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: PMU version updateMahantesh Kumbar2016-06-15
| | | | | | | | | JIRA DNVGPU-34 Change-Id: Ib9618bdd928a02917b40e6f9619265bf27aa6879 Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1162632 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add vidmem allocation APIKonsta Holtta2016-06-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add in-nvgpu APIs for allocating and freeing mem_descs in video memory. Changes for gmmu tables etc. will be added in upcoming changes. Video memory is allocated via nvmap by initially registering the aperture size to it and binding it to a struct device, and then going via the usual dma alloc. This API allows also fixed-address allocations, meant for reserving special memory areas at boot. The aperture registration is skipped completely if vidmem isn't found for the particular device. gk20a_gmmu_alloc_attr() still uses sysmem, and the unmap/free paths select internally the correct path by the mem_desc's aperture. Video memory allocation is off by default, and can be turned on with CONFIG_GK20A_VIDMEM. JIRA DNVGPU-16 Change-Id: I77eae5ea90cbed6f4b5db0da86c5f70ddf2a34f9 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1157216 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: sysfs: use snprintf instead of sprintfSeshendra Gadagottu2016-06-14
| | | | | | | | | | | | | Use snprintf instead of sprintf to avoid any buffer overflows. Bug 200192125 Change-Id: I6df43c6d6ee62677f5fd4d4e99f16be77c9e101e Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1164312 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Export and rename alloc_fenceAlex Waterman2016-06-14
| | | | | | | | | | | | | | | Rename alloc_fence() to gk20a_alloc_fence() and allow this function to be called by the channel_sync_gk20a.c code. Bug 1732449 JIRA DNVGPU-12 Change-Id: Ic17131db2c8545832a2e8caacbd092cf970af4d1 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1162687 Reviewed-by: David Martinez Nieto <dmartineznie@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: export gk20a_free_priv_cmdbufAlex Waterman2016-06-14
| | | | | | | | | | | | | | | Export gk20a_free_priv_cmdbuf() so that the channel_sync_gk20a.c code can call this function. This is necessary for error paths in the semaphore wait/incr functions. Bug 1732449 JIRA DNVGPU-12 Change-Id: Id2ea13e5553d50475ee1bbf94781e18590321fdf Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1162686 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fix gk20a_busy() in debug dumpTerje Bergstrom2016-06-14
| | | | | | | | | | | | | | | | | When debug dump is called from an interrupt thread, we do not want to call gk20a_busy() because it causes race in case rail gating is being engaged at the same time. It has to be called from all debugfs paths. Bug 200198908 Bug 1770522 Change-Id: I7eda7d029b0a59cce0320ecc1b750dc2f4d7ccf0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1163440 GVS: Gerrit_Virtual_Submit Tested-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: Disable channel watchdogTerje Bergstrom2016-06-14
| | | | | | | | | | Bug 200198908 Change-Id: I4dfb3517f5467f8b5449e65290453ba1c828243d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1163439 Tested-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: Do not register debug dump to nvhostTerje Bergstrom2016-06-14
| | | | | | | | | | | | | | | | | Do not register device for debug dump to nvhost. This can cause races if nvhost calls debug dump spew at the same time when GPU is being powered off. Bug 200198908 Bug 1770522 Change-Id: Ia7e57437d647041e82dd4c61ffd08fb1cbe1f32f Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1163441 GVS: Gerrit_Virtual_Submit Tested-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: Do not complain about default runlistTerje Bergstrom2016-06-14
| | | | | | | | | | | | Do not spew an error when choosing the default runlist for engine. That is normal behavior. Change-Id: Ide786712f3f74bf59aee48de98c2186db1d97378 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1163511 GVS: Gerrit_Virtual_Submit Reviewed-by: Lakshmanan M <lm@nvidia.com> Tested-by: Lakshmanan M <lm@nvidia.com>
* gpu: nvgpu: Balance curly bracesAlex Waterman2016-06-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | In some of the conditionally compiled code in the nvgpu driver there are places where the code looks like: #ifdef LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0) some-loop { #else a-diff-loop { #endif /* Some code... */ } This leaves unbalanced curley braces: two open braces for one close brace. This messes up some editors syntax highlighting and auto- indentation features. This patch puts in the extra brace. It's not necessary for compiling code but it makes some editors much happier. Change-Id: Ida28bc001cc840fe52a43982db934d49c07cc7d3 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1153668 Reviewed-by: Konsta Holtta <kholtta@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add uapi support for non-graphics enginesLakshmanan M2016-06-13
| | | | | | | | | | | | | | | | | | | Extend the existing NVGPU_GPU_IOCTL_OPEN_CHANNEL interface to allow opening channels for other than the primary (i.e., the graphics) runlists. This is required to push work to dGPU engines that have their own runlists, such as the asynchronous copy engines and the multimedia engines. Minor change - Added active_engines_list allocation and assignment for fifo_vgpu back end. JIRA DNVGPU-25 Change-Id: I3ed377e2c9a2b4dd72e8256463510a62c64e7a8f Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1161541 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: optimize mem_desc accessor loopsKonsta Holtta2016-06-13
| | | | | | | | | | | | | | Instead of going via gk20a_mem_{wr,rd}32() on each iteration, do direct memcpy/memset with sysmem, and minimize the enter/exit overhead with vidmem. JIRA DNVGPU-23 Change-Id: I5437e35f8393a746777a40636c1e9b5d93ced1f6 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1159524 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Support third GPU version on T18xTerje Bergstrom2016-06-13
| | | | | | | | Change-Id: I3f1645ed7a465c93b0a0a6f885ef77bea0066ed0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1160372 GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
* gpu: nvgpu: Check result of gk20a_pmu_initTerje Bergstrom2016-06-13
| | | | | | | | | | | | | If PMU version is not supported, gk20a_pmu_init returns an error code. Check the error code and fail poweron if gk20a_pmu_init fails. Change-Id: Ia1d6a6fcbcc5a144d2e5bc88734df778e887fa53 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1160371 Reviewed-by: Alex Waterman <alexw@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
* gpu: nvgpu: Rework the channel timeout handler messagesAlex Waterman2016-06-13
| | | | | | | | | | | | | | Rework how the messages in the channel timeout handler to be a little bit more verbose and more clear about what is happening. Bug 1732449 JIRA DNVGPU-12 Change-Id: Ifc018d99c647b3036caa8ad453e5e3dfc4151396 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1153669 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Remove dead priv_cmdbuf codeAlex Waterman2016-06-13
| | | | | | | | | | | | | | Remove the gp_get and gp_put pointers from the priv_cmdbuf code. These pointers appear to track the position of th the priv_cmdbuf in the gp_fifo. However, these pointers are not used for anything nor are they needed for anything in the future. This code appears to be a relic left over from the past. Change-Id: Ibed1a6d51fa0cac12c5e0429760e8e2f611fc899 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1161859 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add uapi support for NVGPU_GPU_IOCTL_GET_ENGINE_INFOLakshmanan M2016-06-10
| | | | | | | | | | | | | | | | Implement NVGPU_GPU_IOCTL_GET_ENGINE_INFO for retrieving the list of supported engines and their corresponding run list id:s. JIRA DNVGPU-25 Change-Id: I8703388660190f7dcb509c0676f283ca4b820b6f Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1160939 Reviewed-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix sparse warningsLakshmanan M2016-06-10
| | | | | | | | | | | | | | | | | | | | Fixed the following sparse warnings: - warning: symbol 'gm206_ce_isr' was not declared. Should it be static? - warning: symbol ''gm206_ce_nonstall_isr' was not declared. Should it be static? Bug 200088648 Change-Id: I30f66ba4225d5544d6110bc4a70235234ad4001d Signed-off-by: Lakshmanan M <lm@nvidia.com> Reviewed-on: http://git-master/r/1161604 Reviewed-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com> Reviewed-by: Sachin Nikam <snikam@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix event id pollingDeepak Nibade2016-06-10
| | | | | | | | | | | | | | | | | | | In gk20a_event_id_poll(), we always set the mask value and return it. This causes poll() from UMD to be always successful irrespective of event is really generated or not Fix this by adding a flag event_posted for each event Set this flag while posting the event In gk20a_event_id_poll(), set the mask value only if this flag is set. If flag is set, set mask and clear the flag Bug 200089620 Change-Id: If14236547c611fe4bfa1410ff5b69c9fa02d43bb Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1160253 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: ACR interface updateMahantesh Kumbar2016-06-09
| | | | | | | | | | | | | | | - ACR interface update to support next GPU chip ACR boot - Udpate falcon ID JIRA DNVGPU-34 Change-Id: Ic9e5e1f9bd965dbb65b4feaadcf63e457b49263b Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1161695 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-07-17 06:43:20 -0400