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* gpu: nvgpu: cde: restrict context countKonsta Holtta2015-03-18
| | | | | | | | | | | | | Add an upper limit for cde contexts, and wait for a while if a new context is queried and the limit has been exceeded. This happens only under very high load. If the timeout is exceeded, report -EAGAIN. Change-Id: I1fa47ad6cddf620eae00cea16ecea36cf4151cab Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/601719 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@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: Retrieve intr & reset id from HWTerje Bergstrom2015-03-18
| | | | | | | | | | | | Query interrupt number and reset id from HW. Use the number from HW when enabling and detecting interrupts. Bug 200036089 Bug 1567274 Change-Id: If9cb4db79a19dcb193ba7ad9db7081f4fe1ab433 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/600988
* 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: cde: report use counts to debugfsKonsta Holtta2015-03-18
| | | | | | | | | | | Create debugfs nodes for ctx_count, ctx_usecount and ctx_cont_top. Change-Id: I1360853b2650d37a96c8adf76368d48d9b457909 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/602860 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: do not rearm deleter on failureKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | | | | Rescheduling the temp context deleter when it is not immediately possible is not necessary, and complicates things. Don't do it. The context would anyway be used later when its time comes in the free list, and the deletion would then be retried. This simplifies canceling the works when shutting down or going into suspend, since re-canceling the possibly rescheduled work is not needed. Releasing the app mutex is still necessary when deleting the whole cde. Bug 200052943 Change-Id: I06afe1766097a78d7bcb93f3140855799ac903ca Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/601035 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: cancel ctx deleter when using itKonsta Holtta2015-03-18
| | | | | | | | | | | | Cancel the temporary context deleter work when acquiring a channel for use, to prevent re-scheduling when the same context would be quickly re-used and finished twice or more in a row before deletion. Change-Id: Iadd8230d9462adc451e506152a24c50a920a59e3 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/600273 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: flush update notifiers on suspendKonsta Holtta2015-03-18
| | | | | | | | | | | | | | If any gk20a update callback work is pending, wait for them to finish before going to suspend. Bug 200052943 Change-Id: Ib469db6e29d13ae26aaca5fceb1ccd20f18bfc3c Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/601034 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* 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: vgpu: fix crash during initAingara Paramakuru2015-03-18
| | | | | | | | | | | | | | | gops->gr.detect_sm_arch was not populated for vgpu. Also, populate some members of the PMU VM struct as they are used to report GPU characteristics to userspace. Bug 1576949 Change-Id: I9ddc361d1418b942da97a82b553aac81f5f51182 Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com> Reviewed-on: http://git-master/r/601931 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Use long for timeout in semaphoresTerje Bergstrom2015-03-18
| | | | | | | | | | | | Semaphore fences use int for timeout. It should be long instead. Bug 1567274 Change-Id: Ia2b2c5ceeb03b4d09c1d8933ce33310356dd7e01 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/595980 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit
* nvgpu: gm20b: set rail gating delay to 500msecSeshendra Gadagottu2015-03-18
| | | | | | | | | | | | | | Enable gpu rail gating by setting rail-gating delay to 500msec instead of INT_MAX. Bug 1552464 Bug 200040882 Change-Id: I64e779fc5b3a0c04997d8874025c71812948602a Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/552700 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Mitch Luban <mluban@nvidia.com>
* gpu: nvgpu: Add NULL pointer check to debug codeArto Merilainen2015-03-18
| | | | | | | | | | | | | | | nvgpu exposes debug dump functionality. Currently this function misses NULL pointer checks and therefore in cases where the driver is compiled but the device is disabled, the driver crashes kernel. This patch adds the missing NULL pointer check. Change-Id: I32acb5cad62b2a29603d6439a5c7e45e016235dd Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/599370 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Mohan Nimaje <mnimaje@nvidia.com>
* gpu: nvgpu: fix gm20b floorsweep APIDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | Rewrite gr_gm20b_ctx_state_floorsweep() to include necessary register writes for gm20b tpc floorsweeping. This includes : - update the loop to write gr_gpc0_tpc0_sm_cfg_r() and gr_gpc0_gpm_pd_sm_id_r() - for gr_pd_num_tpc_per_gpc_r(i), we just need to write register with i = 0 and the value being written is tpc count in that gpc - gr_fe_tpc_fs_r() needs to have logical list of TPCs after floorsweeping. Get this value from pes_tpc_mask. - gr_cwd_gpc_tpc_id_tpc0_f() and gr_cwd_sm_id_tpc0_f() also refer to logical ids and hence no need to check tpc_fs_mask to configure these registers Bug 1513685 Change-Id: I82dc36a223fbd21e814e58e4d67738d7c63f04a7 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/601117 Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: support config of TPC FUSE dynamicallyDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Follow steps below to config active TPC number: echo 1 > /sys/devices/platform/host1x/gpu.0/force_idle echo 0x1/0x2/0x3 > /sys/devices/platform/host1x/gpu.0/tpc_fs_mask echo 0 > /sys/devices/platform/host1x/gpu.0/force_idle where, 0x1 : disable TPC1 0x2 : disable TPC0 0x3 : both TPCs active Also, add API set_gpc_tpc_mask to update the TPCs and call this API after update to sysfs "tpc_fs_mask" Once fuses are updated for new TPC settings, we need to reconfigure GR and golden_image. Hence disable gr->sw_ready and golden_image_initialized flags. Also, initialize gr->tpc_count = 0 each time in gr_gk20a_init_gr_config(), otherwise it goes on adding tpc count Bug 1513685 Change-Id: Ib50bafef08664262f8426ac0d6cbad74b32c5909 Signed-off-by: Kevin Huang <kevinh@nvidia.com> Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/552606 Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: Add GPCPLL DVFS state to debug printsAlex Frid2015-03-18
| | | | | | | | | Bug 1555318 Change-Id: I80655e047963619b5a3d7e9155db13c9396417fe Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/598970 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* dvfs: tegra21: Don't allow NA mode on certain partsAlex Frid2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | GM20b GPCPLL NA mode should not be enabled on Tegra21 parts with speedo revision 0 or 1, even when CONFIG_TEGRA_USE_NA_GPCPLL is set. Respectively, in this case non-NA GPU DVFS table must be selected. To accommodate this restriction added GPU speedo id 1, and mapped parts with revision 2 and above to this new speedo id. Kept speedo id 0 for parts with revision 0 or 1. Only non-NA DVFS table is selected for speedo id 0. Either non-NA or NA mode DVFS table can be selected by CONFIG_TEGRA_USE_NA_GPCPLL setting for parts with speedo id 1. GM20b GPCPLL mode selection procedure is updated accordingly, so that NA mode is disabled for speedo id 0, and selected for speedo id 1 by CONFIG_TEGRA_USE_NA_GPCPLL. The latter takes precedence over GPCPLL ADC calibration fuses - if config option is set, and part has speedo id 1, NA mode is enabled even if calibration fuses are not burnt (less accurate s/w self-calibration is used in this case). Bug 1555318 Change-Id: I3948cb945206d0bc0f9f2bb6da5505c50ffc2af1 Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/594718 Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@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: 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: sanitize gk20a_vm_alloc_share()Sami Kiminki2015-03-18
| | | | | | | | | | | | | | Add sanity check for big_page_size parameter to avoid invoking gk20a_init_vm() with a bogus big page size, potentially hitting a BUG_ON there. Also, reorganize the code a bit to avoid memory leak in case of bogus big page size, and properly forward the return value from gk20a_init_vm(). Change-Id: I4eeada75415d2e9539b5e8859099cce35cd86db3 Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/594469 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: ALLOC_AS: don't fail on default big page sizeSami Kiminki2015-03-18
| | | | | | | | | | | | | gk20a_vm_alloc_share() fails when the default big page size is requested but ops.mm.set_big_page_size is unset. Rework the logic a bit to allow userspace to explicitly request the default big page size, too. Change-Id: I2a28c6d979fbf1dde5559ce9eb5f1310d232e27f Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/590456 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: GPU characteristics additionsSami Kiminki2015-03-18
| | | | | | | | | | | | | | | | | Add the following info into GPU characteristics: available big page sizes, support indicators for sync fence fds and cycle stats, gpc mask, SM version, SM SPA version and warp count, and IOCTL interface levels. Also, add new IOCTL to fetch TPC masks. Bug 1551769 Bug 1558186 Change-Id: I8a47d882645f29c7bf0c8f74334ebf47240e41de Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/562904 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fix comptag calculation for 64k pagesTerje Bergstrom2015-03-18
| | | | | | | | | Comptags are assigned per 128k. For 64k pages this means we need to assign same index to two pages. Change the logic to use byte sizes. Change-Id: If298d6b10f1c1cad8cd390f686d22db103b02d12 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/594403
* gpu: nvgpu: Add class numbers to characteristicsTerje Bergstrom2015-03-18
| | | | | | | | | | | Some kernel APIs rely on user space knowing class numbers. Allow querying the numbers from kernel. Bug 1567274 Change-Id: Idec2fe8ee983ee74bcbf9dfc98f71bbcc1492cfb Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/594402
* gpu: nvgpu: cde: fix err in oom conditionKonsta Holtta2015-03-18
| | | | | | | | | | | | | | use a correct, negative error sign in ENOMEM when gk20a_gmmu_map runs out of memory. Change-Id: I4fa8a2cf359a5c98cebdf64d4e3fcc96f478f779 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/594397 Reviewed-by: Jussi Rasanen <jrasanen@nvidia.com> Tested-by: Jussi Rasanen <jrasanen@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: Combine H and V passesJussi Rasanen2015-03-18
| | | | | | | | | | | | | | | | When using CDE firmware v1, combine H and V swizzling passes into one pushbuffer submission. This removes one GPU context switch, almost halving the time taken for swizzling. Map only the compbit part of the destination surface. Bug 1546619 Change-Id: I95ed4e4c2eefd6d24a58854d31929cdb91ff556b Signed-off-by: Jussi Rasanen <jrasanen@nvidia.com> Reviewed-on: http://git-master/r/553234 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvpgu: cde: fix timeout mgmt, use two listsKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | If a channel timeout occurs, reload only the particular context/channel where the timeout occurred, instead of destroying whole cde. Reloading happens by allocating a replacement context and marking the offending channel as soon-to-be-deleted. Clean up the code by using two separate lists for free and used contexts. Rename channel deallocation/allocation functions to better describe what they do, and annotate the functions that need locking. Also do not wait for channel idle before submitting, since the acquired context has a ready channel already. Bug 200046882 Change-Id: I4155a85ea0ed79e284309eb2ad0042df3938f1e2 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/591235 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: free all vm's when removing supportKonsta Holtta2015-03-18
| | | | | | | | | | | | Remove both bar1 and pmu. Bug 1476801 Change-Id: I0c194db06b576083ddaab3726b8575ebce473d84 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/592114 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: don't kfree vm's inside other structsKonsta Holtta2015-03-18
| | | | | | | | | | | | Trying to kfree pmu.vm or bar1.vm is not allowed, since they are not directly allocated. Separate the vm kfree from the actual vm support removal, so that they can be done individually. Change-Id: I7628f546b94e0de909371ce315e4cb065e5ef953 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/592112 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: destroy big page allocator only if setKonsta Holtta2015-03-18
| | | | | | | | | | | | Some vm's do not have big pages. Bug 1476801 Change-Id: Ic82ca7a1380834ea30582631af224c81fd01e4bb Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/592113 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add GPCPLL parameters to GM20b debugfsAlex Frid2015-03-18
| | | | | | | | | Bug 1555318 Change-Id: I0338e5d46c7f7d910faada0205dccf28aa62d6c2 Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/594746 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: force CAR reset in do_idle() for gm20bDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | In gk20a_do_idle(), we wait for platform->railgate_delay to allow GPU to go into rail gate But sometimes we set platform->railgate_delay = INT_MAX to disable GPU rail gating but allow it to suspend during low power state Due to this, force_idle API fails (it waits for INT_MAX) To fix this, allow forcing CAR reset instead of rail gating with flag "force_reset_in_do_idle" defined in gk20a_platform Set this flag for gm20b until we fix the railgate_delay Bug 1517584 Change-Id: I031aa56f87d4db3727e2c3a3e5eeaf18503dd449 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/593704 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: explicitly disable elcg during initVijayakumar2015-03-18
| | | | | | | | | | bug 200048467 Change-Id: I39f85a638b6bc97442ebf8e4a78e07c8575e4b20 Signed-off-by: Vijayakumar <vsubbu@nvidia.com> Reviewed-on: http://git-master/r/592751 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gm20b: remove duplicate regops whitelistSeshendra Gadagottu2015-03-18
| | | | | | | | | | | | | | Manually removed duplicate entries in regops whitelist. Once RM tools is available, then whitelist update will happen through script. Bug 1500195 Change-Id: I913c48365e43febcd350a9bfc73d42a27f24e2f7 Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/592972 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Do not call ELPG if disabledTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Do not call PMU ELPG calls if ELPG should be disabled. Also skips initialization of PMU ucode if PMU is disabled. Bug 1567274 Change-Id: Ia9cd3b553c358142ee05a1b0e0832f9412f7cf17 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/593335 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
* gpu: nvgpu: fix sparse warningsDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | Fix below sparse warnings : warning: Using plain integer as NULL pointer warning: symbol <variable/funcion> was not declared. Should it be static? warning: Initializer entry defined twice Also, remove dead functions Bug 1573254 Change-Id: I29d71ecc01c841233cf6b26c9088ca8874773469 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/593363 Reviewed-by: Amit Sharma (SW-TEGRA) <amisharma@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: cde: cancel delayed_work during suspendSeshendra Gadagottu2015-03-18
| | | | | | | | | | | | | | | | | During gpu suspend, cancel all pending delayed cde work to avoid issues of scheduling this delayed work during suspend/resume when gpu is not ready. Bug 1574000 Change-Id: I2b6bfa489435a781dc576a077f9af01b1e1628ce Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/593557 Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com> Tested-by: Prashant Gaikwad <pgaikwad@nvidia.com> Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
* gpu: nvgpu: fix reset clock in gm20bDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | To assert reset on GPU, we store "gpu_ref" clock in platform->clk[0] and use it to assert/deassert reset But for gm20b, "gpu_ref" is no longer resettable. To fix this, add two callbacks in gk20a_platform : .reset_assert and .reset_deassert Also, add a pointer "clk_reset" to store the clock which needs to be reset For gk20a specific implementation, we continue to reset platform->clk[0] For gm20b specific implementation, we first request "gpu_gate" clock, store it and use it to assert reset Bug 1513685 Bug 1517584 Change-Id: I15a583a4a07eb663b442084be8b8c7d0c7c7a142 Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: Assign T18x an own platform dataTerje Bergstrom2015-03-18
| | | | | | | | | | Bug 1572701 Change-Id: Id135eb2328765d00349b478d695914f7f8c5edf0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/592095 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: vgpu: init vm->gmmu_page_sizesAingara Paramakuru2015-03-18
| | | | | | | | | | vm->gmmu_page_sizes was not initialized properly in the vgpu case, leading to gmmu map failures. Bug 1570878 Change-Id: I16c371f65d884f59d9c9f60c7acd391b917d04ed Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com>
* gpu: nvgpu: vgpu: add PM domain supportAingara Paramakuru2015-03-18
| | | | | | | | | | | | | | vgpu "poweron" and "poweroff" routines now get invoked using the PM domain callbacks, instead of the obsolete gk20a_get_client/gk20a_put_client routines. Bug 1570878 Change-Id: I9a5254936904f75cb3c8a14c2bf5066f919b6588 Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com> Reviewed-on: http://git-master/r/590492 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Regenerate HW headersTerje Bergstrom2015-03-18
| | | | | | | Regenerate HW headers after adding SM debugger registers. Change-Id: Icc47c11f8e9ff52c0cf1f3a54233fb781c2c2b67 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: warn on nested ctx patch beginKonsta Holtta2015-03-18
| | | | | | | | | Add WARN_ON to a critical error condition to get a backtrace dump. Bug 200046882 Change-Id: I76c4186024547c6e89f1465612fe17f44e27eefe Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
* gpu: nvgpu: use correct parent for sysfs removeKonsta Holtta2015-03-18
| | | | | | | | | | | sysfs_remove_link's first argument expects the kobj of the directory where the link resides, not the kobj of the link itself. Change-Id: I89f7d681135e8eb0ff16406271cd19bf9c04f185 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/592111 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: protect channel update callback accessKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | Protect callback races from spurious gk20a channel updates by testing if the channel update callback still exists when in the scheduled work (instead of only when scheduling the work to the queue), and by canceling the work when the channel is freed. Protect access to the callback and its data by accessing them together inside spinlock-protected regions. Bug 200051384 Change-Id: Ib4e1571c35f662195e1dec1e362df32ddc099eb3 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/592026 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: list for contexts, defer deletionKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | Instead of current preallocated array plus dynamically allocated temporary contexts, use a linked list in LRU fashion, always storing free contexts at the beginning of the list. Initialize the preallocated contexts to the list and store dynamically allocated temporaries there too for quick reuse as needed, with a delayed scheduled work for deleting temporaries when the high load has diminished. Bug 200040211 Change-Id: Ibc75a0150109ec9c44b2eeb74607450990584b18 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/562856 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Use generic clk_get_rateTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Instead of gk20a_clk_get_rate() use the generic clk_get_rate(). Bug 1567274 Change-Id: If955790408d2f4a5d917ea3993573ac3f254c7d3 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/592094 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
* gpu: nvgpu: disable cg in mmu error handlerVijayakumar2015-03-18
| | | | | | | | | | | | | | With CG enabled sometimes fifo could not be idled during firmware load. Bug 200042729 Change-Id: I43d7551c0c7c19314c52ac5f678afed8c6df6415 Signed-off-by: Vijayakumar <vsubbu@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Vijayakumar <vsubbu@nvidia.com> Reviewed-on: http://git-master/r/559077 Reviewed-by: Automatic_Commit_Validation_User
* gpu: kernel support for suspending/resuming SMssujeet baranwal2015-03-18
| | | | | | | | | | | | | | | Kernel support for allowing a GPU debugger to suspend and resume SMs. Invocation of "suspend" on a given channel will suspend all SMs if the channel is resident, else remove the channel form the runlist. Similarly, "resume" will either resume all SMs if the channel was resident, or re-enable the channel in the runlist. Change-Id: I3b4ae21dc1b91c1059c828ec6db8125f8a0ce194 Signed-off-by: sujeet baranwal <sbaranwal@nvidia.com> Signed-off-by: Mayank Kaushik <mkaushik@nvidia.com> Reviewed-on: http://git-master/r/552115 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gm20b: halify tpc lookupMayank Kaushik2015-03-18
| | | | | | | | | | | | Since the number of TPCs is different between GM20B and GK20a, the function to look up the number of TPCs needs to be halified. Change-Id: I19dab9a7105814f86c08c92283a0bb70abb6aa00 Signed-off-by: Mayank Kaushik <mkaushik@nvidia.com> Reviewed-on: http://git-master/r/500064 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-09 03:21:22 -0500