summaryrefslogtreecommitdiffstats
path: root/include/trace/events
Commit message (Collapse)AuthorAge
* gpu: nvgpu: add per-channel refcountingKonsta Holtta2015-06-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add reference counting for channels, and wait for reference count to get to 0 in gk20a_channel_free() before actually freeing the channel. Also, change free channel tracking a bit by employing a list of free channels, which simplifies the procedure of finding available channels with reference counting. Each use of a channel must have a reference taken before use or held by the caller. Taking a reference of a wild channel pointer may fail, if the channel is either not opened or in a process of being closed. Also, add safeguards for protecting accidental use of closed channels, specifically, by setting ch->g = NULL in channel free. This will make it obvious if freed channel is attempted to be used. The last user of a channel might be the deferred interrupt handler, so wait for deferred interrupts to be processed twice in the channel free procedure: once for providing last notifications to the channel and once to make sure there are no stale pointers left after referencing to the channel has been denied. Finally, fix some races in channel and TSG force reset IOCTL path, by pausing the channel scheduler in gk20a_fifo_recover_ch() and gk20a_fifo_recover_tsg(), while the affected engines have been identified, the appropriate MMU faults triggered, and the MMU faults handled. In this case, make sure that the MMU fault does not attempt to query the hardware about the failing channel or TSG ids. This should make channel recovery more safe also in the regular (i.e., not in the interrupt handler) context. Bug 1530226 Bug 1597493 Bug 1625901 Bug 200076344 Bug 200071810 Change-Id: Ib274876908e18219c64ea41e50ca443df81d957b Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/448463 (cherry picked from commit 3f03aeae64ef2af4829e06f5f63062e8ebd21353) Reviewed-on: http://git-master/r/755147 Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Use busy looping for flush operationsSeshendra Gadagottu2015-04-04
| | | | | | | | | | | | | | | | | | | | | Use busy looping for l2 tag flush and elpg flush operations. This is making total flash time more accurate and reduced overall time compared with usleep. Also added trace points to measure performance for these operations. Also corrected timeout error check for non-silicon platforms. Bug 200081799 Change-Id: I63410bb7528db9258501633996fbdee5fdec1c74 Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/710472 (cherry picked from commit 18684cf9d5d6870a1a1fd5711c4fc2d733caad20) Reviewed-on: http://git-master/r/710986 GVS: Gerrit_Virtual_Submit Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Use busy looping on memory opsTerje Bergstrom2015-04-04
| | | | | | | | | | | | Use busy looping on L2 and TLB maintenance operations. This speeds them up by an order of magnitude. Add also trace points to measure performance for memory ops and interrupt processing. Change-Id: Ic4a8525d3d946b2b8f57b4b8ddcfc61605619399 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/681640
* gpu: nvgpu: gk20a: Add a gpfifo wait trace pointJanne Hellsten2015-04-04
| | | | | | | | | | | | | | | Add a couple of trace points for tracking when we need to wait for space in the gpfifo ring buffer. This wait can introduce significant latencies to rendering with large gpfifo entry inputs so it's good to be able to measure how often this path is taken. Bug 1592391 Bug 1550886 Change-Id: I7f362e9c307eeffeeecaaba268ef2e3613e54597 Signed-off-by: Janne Hellsten <jhellsten@nvidia.com> Reviewed-on: http://git-master/r/674021 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: add trace events for ctx allocsKonsta Holtta2015-03-18
| | | | | | | | | | | | Trace cde context allocation and deallocation with ftrace. Bug 200052943 Change-Id: Ieeb625166662971fb3eb3fb29c986fdb6809c10b Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/602886 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add trace event for channel updateKonsta Holtta2015-03-18
| | | | | | | | | | Bug 200052943 Change-Id: Ied6454bbfb5df9ab29497ecbf2aac495f6d89362 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/602887 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Implement NVGPU_AS_IOCTL_GET_VA_REGIONSSami Kiminki2015-03-18
| | | | | | | | | | | | | Implement NVGPU_AS_IOCTL_GET_VA_REGIONS which returns a list of GPU VA regions for different page sizes. This is required for the userspace for safe fixed-address address space allocation. Bug 1551752 Change-Id: I63ddde30935db2471bec498dae0caa870e89c1a5 Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/590814 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add rail gating trace eventsTerje Bergstrom2015-03-18
| | | | | | | Change-Id: I661f14b2858fb7bc993157a597d4a278859da837 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/418789 Reviewed-by: Automatic_Commit_Validation_User
* video: tegra: host: Abstract gk20a channel synchronizationLauri Peltonen2015-03-18
| | | | | | | | | | | | | | | | Move all channel synchronization code to new channel_sync_gk20a.c/h files, and access all synchronization functions through function pointers. This is groundwork for supporting semaphore based channel synchronization. Bug 1434573 Bug 1450122 Change-Id: Ic21709c1ee8cf85d018616787988e7eebb399fbe Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com> Reviewed-on: http://git-master/r/374841 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* video: tegra: host: gk20a: Add own trace eventsArto Merilainen2015-03-18
This patch modifies gk20a driver to use its own trace events instead of trace events of nvhost. Bug 1468086 Change-Id: I1f40ba957ec7e25904e9f4621346cb7dc256a550 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/374289 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>