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* 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>
* gpu: nvgpu: gk20a: regops: resident channel checkMayank Kaushik2015-03-18
| | | | | | | | | Fix the code that checks if the channel passed in for regops is resident by also accounting for the TSG id, if the channel is part of a TSG. Change-Id: I449344e2887a4de4d55122f4aae5d3d4efabf725 Signed-off-by: Mayank Kaushik <mkaushik@nvidia.com>
* gpu: nvgpu: create a hal function for smpc warMayank Kaushik2015-03-18
| | | | | | | | | | | Create a HAL function for applying the SMPC workaround.The workaround is only needed on gk20a, and not on gm20b. Change-Id: I9edc741df32ab7d1dad38ecc56f238828128bfef Signed-off-by: Mayank Kaushik <mkaushik@nvidia.com> Reviewed-on: http://git-master/r/539187 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: T18x supportKenneth Adams2015-03-18
| | | | | | | | | | nvgpu framework and build for T18x Bug 1567274 Change-Id: I77835302a1110573008869d1106eface512bb9b1 Signed-off-by: Ken Adams <kadams@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Per-chip interrupt processingTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Move accesses to MC registers under HAL so that they can be reimplemented per chip. Do chip detection and HAL initialization only once. Bug 1567274 Change-Id: I20bf2f439d267d284bfd536f1a1dfb5d5a2dce4c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/590385
* gpu: nvgpu: Changes to support LS sigSupriya2015-03-18
| | | | | | | | | | | | Support added to send PMU and FECS signatures to ACR ucode Bug 200046413 Change-Id: Ie1babb640be20a697ad4d6dd18bd11161edb263c Signed-off-by: Vijayakumar <vsubbu@nvidia.com> Signed-off-by: Supriya <ssharatkumar@nvidia.com> Signed-off-by: Vijayakumar <vsubbu@nvidia.com>
* Revert "gpu: nvgpu: GR and LTC HAL to use const structs"Sam Payne2015-03-18
| | | | | | | | | | | This reverts commit 41b82e97164138f45fbdaef6ab6939d82ca9419e. Change-Id: Iabd01fcb124e0d22cd9be62151a6552cbb27fc94 Signed-off-by: Sam Payne <spayne@nvidia.com> Reviewed-on: http://git-master/r/592221 Tested-by: Hoang Pham <hopham@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Mitch Luban <mluban@nvidia.com>
* gpu: nvgpu: Allow compression on 64k pagesTerje Bergstrom2015-03-18
| | | | | | | | | | | Allow compression always when page size matches the big page size for the context. Bug 1558739 Change-Id: I27b0aed06c24d69bd1555626b9affb1149536615 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/590422
* gpu: nvgpu: Fix AS IOCTL return code for failed user writeSami Kiminki2015-03-18
| | | | | | | | | | | | Fix return code in gk20a_as_dev_ioctl() in case of failed copy_to_user(). Change-Id: I8b86c0dfca92c8c508006dc33673ccd926497819 Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/590813 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: cde: move GK20A_CDE to platform dataKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | CONFIG_GK20A_CDE has not even been used for enabling CDE, just for initializing it at boot time, and it was disabled; initialization has been done late when the engine is first used. Remove the config setting and add information about CDE support in gk20a platform data, forcing the initialization at boot time. Boot time init removes rare race conditions when CDE would be initialized by first user. Bug 200046882 Change-Id: I85d5fb73dc27acbbe203138d25f6e342de030d93 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/562855 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: GR and LTC HAL to use const structsTerje Bergstrom2015-03-18
| | | | | | | | | | | Convert GR and LTC HALs to use const structs, and initialize them with macros. Bug 1567274 Change-Id: Ia3f24a5eccb27578d9cba69755f636818d11275c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/590371
* Revert "gpu: nvgpu: Do not wait for FE GO_IDLE"Allen Yu2015-03-18
| | | | | | | | | | | | | This reverts commit ba69a53f2f9ec055d7e61a40352bb9e73ba136be as it's causing regression in boot stress. Bug 200049711 Change-Id: Iacdba4d1b3739fd60c5a289d30f076f60389e453 Signed-off-by: Allen Yu <alleny@nvidia.com> Reviewed-on: http://git-master/r/590634 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gm20b: Support secure FECS recoveryVijayakumar2015-03-18
| | | | | | | | | | | | | When falcons are secured use PMU commands to reload FECS firmware. Bug 200042729 Change-Id: I09f2472b16dac6a510dba067bce3950075973d5f Signed-off-by: Vijayakumar <vsubbu@nvidia.com> Reviewed-on: http://git-master/r/552544 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Sync gk20a and gm20b headersTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Synchronize gk20a and gm20b headers. All registers which were added to gk20a are now added to gm20b, and some registers that are unused are removed. Bug 1567274 Change-Id: Ia3b7958c148e495cbff420ee56bb448db0f58680 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/590313 GVS: Gerrit_Virtual_Submit
* gpu: nvgpu: Enable clocks only if definedTerje Bergstrom2015-03-18
| | | | | | | | | | Enable clocks only if they are defined. This prevents panic in cases where clock does not need to be enabled explicitly. Bug 1567274 Change-Id: I7113c6d874b61acc2646effda9c02d3d1817c531 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Sanitize gk20a_gr_handle_notify_pendingSami Kiminki2015-03-18
| | | | | | | | | | | | | Sanitize cyclestats portion of gk20a_gr_handle_notify_pending() a bit and fix infinite loop and buffer overrun bugs in case of malformed cyclestate element headers. Also, convert WARN_ON:s to gk20a_err:s for malformed headers since they are userspace problems and not worth kernel stack traces. Bug 1566834 Change-Id: I69fbd85efdb042c5f0e745fac55eeff3aee0faa8 Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
* gpu: nvgpu: Split L2 size calculation per chipTerje Bergstrom2015-03-18
| | | | | | | | | | gk20a and gm20b calculate L2 size with different parameters. Split the function for calculating size so that it does not query GPU id. Bug 1567274 Change-Id: I09510c1bf0286c9df125d74e51df322c32bde646 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: create cde context dynamically as neededKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | When the preallocated buffer of cde contexts is full, allocate a new temporary one dynamically. This needs to create a totally new command buffer but fixes possible but rare lockups in case of circular dependencies. The temporary is deleted after the channel job has finished. Bug 200040211 Change-Id: Ic18d1441e8574a3e562a22f9b9dfec1acdf72b71 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/552036 GVS: Gerrit_Virtual_Submit Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
* gpu: nvgpu: add update callback to gk20a channelKonsta Holtta2015-03-18
| | | | | | | | | | | | Add support for a callback function with user data pointer to be scheduled from the end of gk20a_channel_update. The function and its private data are supplied when opening a new channel. Change-Id: Ib6b408855ea60d46a6a114a69c01904703019572 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/552014 Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Tested-by: Arto Merilainen <amerilainen@nvidia.com>
* gpu: nvgpu: find unused cde context instead of lruKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | When preparing a new job, loop initially through the small number of preallocated contexts and try to find one that is already finished, instead of blindly getting the next slot in lru order. If all have work to do, select next in lru order. This reduces the possibility of a deadlock between cde tasks. Bug 200040211 Change-Id: Ib695c0a8e1bcec095d50ec4f2522f3aad39ce97b Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/552035 GVS: Gerrit_Virtual_Submit Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
* gpu: nvgpu: Set page size for generic gpuTerje Bergstrom2015-03-18
| | | | | | | | | | Default page size was made configurable. Set the page size for generic GPU, too. Bug 1567274 Change-Id: I7aa2762e0f542ec7de68e588afb9c51a6443b44f Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fix build without Tegra clk frameworkTerje Bergstrom2015-03-18
| | | | | | | | | | | | Do not build clock code if TEGRA_CLK_FRAMEWORK is not defined. Also make GK20A_DEVFREQ depend on TEGRA_CLK_FRAMEWORK, and build scaling governor only if GK20A_DEVFREQ is enabled. Bug 1567274 Change-Id: I6ea1462e7a110fb46c9d66ceda71167cff19699e Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/562475
* gpu: nvgpu: VM size should be u64Terje Bergstrom2015-03-18
| | | | | | | | | VM size should not depend on CPU architecture. It should be always u64. Change-Id: I81539807f6674877fd04f0079b2bec05b2a0640d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/562466
* gpu: nvgpu: Fix build break with no PM runtimeTerje Bergstrom2015-03-18
| | | | | | | | | | Bug 1567274 Change-Id: I6ca10e329a46edf859f5b22f18d0da9bc8f41cd6 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/562474 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
* gpu: nvgpu: Add ioctl to create new TSGTerje Bergstrom2015-03-18
| | | | | | | | | Add ioctl to nvhost-ctrl to create a new TSG. Bug 200042993 Change-Id: Icdd0edb1d9e374740ace6da9eb3a10c57c62617a Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: select ucode boot init by signatureKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | | | Compute a signature checksum for ctxsw ucode boot section and determine the format of boot initialization data by it. This unifies gk20a and gk20b ucode segment loading a lot by separating the bootloader loading logic to separate functions. Note: Whenever the boot segment binary changes, its updated signature must be added here. Management of different bootloaders must be supported for repo-crossing staging issues. Bug 1519397 Change-Id: I96f9b905d3631dfdebf71ea3a652a0968615fd0a Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/556679 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Remove get and put client routinesKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gk20a_get_client() and gk20a_put_client() routines are effectively dead code. The GPU has been using pm_runtime for reference counting whether the device should be turned on or off, and gk20a_get_client() and gk20a_put_client() have had no positive effect on the behaviour. In worst case these functions trigger some issues as they may trigger code paths that should not be run. There is also a race between get/put and busy/idle. This patch removes the functions and reworks as_gk20a.c to correctly use gk20a_busy()/gk20a_idle() where put/get was required. Additionally, finalize_poweron() is moved to gk20a_busy(), similarly as it was with gk20a_get_client(). If pm_runtime is not in use, the device is only powered on and never off. Currently this affects vgpu power management since it does not use pm_runtime yet. Bug 1562096 Change-Id: I3162655f83457e9caccd9264eed36b5d51e60c52 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/414998 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: allow building as a separate moduleKonsta Holtta2015-03-18
| | | | | | | | | | | | | | | Include object files of gk20a, gm20b and vgpu in the same composite object nvgpu.o in the top-level makefile, and remove the old makefiles. This helps in building the driver as a separate module. Bug 1476801 Change-Id: I93531c0f1a20e46904a429e492f8ed32e4f0c4a1 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/557971 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Do not wait for FE GO_IDLETerje Bergstrom2015-03-18
| | | | | | | | | | | We do not need to wait for FE GO_IDLE counter to go to zero between SW bundles. Bug 1560770 Change-Id: I4cf53ea4e64b7244c589409d66c67ce8afb4a8d5 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/558305
* gpu: nvgpu: Protect GM20b clock init from div-by-0Alex Frid2015-03-18
| | | | | | | | | | | | Protected GM20b clock initialization from div-by-0 in case when safe fmax at Vmin is not known, and the respective interface returns zero. Change-Id: I2064a3182c93f283c7e85c247601203dd1f71af4 Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/559059 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* dvfs: tegra21: Rename thermal safe maximum frequencyAlex Frid2015-03-18
| | | | | | | | | | Renamed field and function operated on thermal safe maximum frequency to make it clear that it is fmax at Vmin (not global fmax). Change-Id: Ie2b5234e87dc5dc03ccdaeb2916f0b776e56b640 Signed-off-by: Alex Frid <afrid@nvidia.com> Reviewed-on: http://git-master/r/559058 Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: Do not init interrupt maskTerje Bergstrom2015-03-18
| | | | | | | | | | Interrupt mask init state is correct, so do not touch it. Bug 1567274 Change-Id: I70673e406944823bd1cbfeee93ec75ce1e1af5da Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/558292
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-05 12:01:12 -0500