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* gpu: nvgpu: Move gk20a_scale to be Linux onlyTerje Bergstrom2017-11-01
| | | | | | | | | | | | | | | Move gk20a_scale.[ch] to be common/linux/scale.[ch]. The code is Linux specific, and only referred from Linux specific source files. Change the license back to GPL. JIRA NVGPU-259 Change-Id: I89fa905a1fea4f93c826ddfe2ffce34aefc1b0a2 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1588650 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Change license for common files to MITTerje Bergstrom2017-09-26
| | | | | | | | | | | | Change license of OS independent source code files to MIT. JIRA NVGPU-218 Change-Id: I1474065f4b552112786974a16cdf076c5179540e Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1565880 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: fix UBSAN warning of signed integer overflowDeepak Nibade2017-09-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix below warning reported by UBSAN by explicitly type casting both the operators in multiplication as unsigned long [ 69.470802] UBSAN: Undefined behaviour in drivers/gpu/../../../nvgpu/drivers/gpu/nvgpu/gk20a/gk20a_scale.c:60:49 [ 69.485519] signed integer overflow: [ 69.489104] 2147483647 * 1000 cannot be represented in type 'int' [ 69.504424] Hardware name: quill (DT) [ 69.508088] Call trace: [ 69.510579] [<ffffff900809a600>] dump_backtrace+0x0/0x4f0 [ 69.515987] [<ffffff900809ab18>] show_stack+0x28/0x38 [ 69.521050] [<ffffff9008f0d8d8>] dump_stack+0x154/0x1c4 [ 69.526291] [<ffffff9008fd1ee0>] ubsan_epilogue+0x18/0xb0 [ 69.531720] [<ffffff9008fd321c>] handle_overflow+0x1c0/0x21c [ 69.537416] [<ffffff9008fd3334>] __ubsan_handle_mul_overflow+0x34/0x50 [ 69.544410] [<ffffff9003c73368>] gk20a_scale_qos_notify+0x210/0x2f0 [nvgpu] [ 69.551415] [<ffffff9008170884>] __blocking_notifier_call_chain+0xec/0x240 [ 69.558299] [<ffffff9008170a18>] blocking_notifier_call_chain+0x40/0x50 [ 69.564928] [<ffffff900825dd18>] pm_qos_update_bounded_target+0x738/0x1038 [ 69.571812] [<ffffff900825f4a0>] pm_qos_update_bounded_req+0x148/0x280 [ 69.578348] [<ffffff9008263224>] pm_qos_bounded_write+0x484/0x990 Bug 200342586 Change-Id: I35ee59a95b2e3625fb42f256d2877558be9e51cf Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1557156 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: Fix up qos/sysfs limitsSai Gurrappadi2017-08-11
| | | | | | | | | | | | | | | | | | | | | | | | Userspace sysfs limits devfreq->{min|max}_freq and pmqos min/max limits are treated as the same priority. In case these two ranges don't intersect prefer the max_freq clamp over the min_freq clamp. This is done in order to ensure any thermal throttling isn't bypassed by a userspace sysfs write. MaxQ/MaxP configurations only care about the Fmax limit and not necessarily Fmin, so preferring max_freq over min_freq is consistent with what is required. Bug 1933216 Change-Id: Ie8685306f10dee0f8d340c4b8e0eae533dbfc6ac Signed-off-by: Sai Gurrappadi <sgurrappadi@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1535937 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> Reviewed-by: Aaron Huang <aaronh@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Set default devfreq polling ratePeter Boonstoppel2017-06-29
| | | | | | | | | | | | | Sets default polling rate for GPU podgov governor to 25ms. Jira NVGPU-20 Change-Id: I994f3aab772b41c238f6755e0bd22ed3d4b27cf4 Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com> Reviewed-on: https://git-master/r/1473141 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Remove gk20a_scale_notify_busy/idle() hooksPeter Boonstoppel2017-06-29
| | | | | | | | | | | | | | | | Remove dependency for nvgpu to invoke devfreq govenor on every gk20a_busy/idle() call. This dependency was originally necessary to track GPU load (busy vs idle) in software. However, since we currently read the load GPU from HW/PMU there is no need to invoke the devfreq governor in this path. Instead it can use timer-based polling. Jira NVGPU-20 Change-Id: Id09f89a8a562ed49164a2e06dcbb901e4a46e7d5 Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com> Reviewed-on: https://git-master/r/1473140 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Move devfreq field to os_linuxTerje Bergstrom2017-06-21
| | | | | | | | | | | | | Move devfreq field from struct gk20a to os_linux. It's a Linux specific framework. JIRA NVGPU-38 Change-Id: I1e00f5a80e31deb4aaba379274c3a7a7b04d963b Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1505176 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: reorganize PMU perfmonMahantesh Kumbar2017-06-15
| | | | | | | | | | | | | | | | | | | | | | | -Moved perfmon code from pmu_gk20a.c to "drivers/gpu/nvgpu/common/pmu/pmu_perfmon.c" file -Moved below related methods perfmon init, start/stop sampling, load counter read/write/reset, perfmon event handler - prepend with nvgpu_ for perfmon global methods by replacing gk20a_ JURA NVGPU-56 JURA NVGPU-98 Change-Id: Idbcdf63ebd76da170e609cc401b320a42110cd7b Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1501418 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: moved & renamed "struct pmu_gk20a"Mahantesh Kumbar2017-06-05
| | | | | | | | | | | | | | | | | | | - Renamed "struct pmu_gk20a" to "struct nvgpu_pmu" then moved to file "pmu.h" under folder "drivers/gpu/nvgpu/include/nvgpu/" - Included header file "pmu.h" to dependent file & removed "pmu_gk20a.h" include if its usage is not present. - Replaced "struct pmu_gk20a" with "struct nvgpu_pmu" in dependent source & header files. JIRA NVGPU-56 Change-Id: Ia3c606616831027093d5c216959c6a40d7c2632e Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1479209 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: gk20a: Use new error macroTerje Bergstrom2017-04-10
| | | | | | | | | | | | | | | | gk20a_err() and gk20a_warn() require a struct device pointer, which is not portable across operating systems. The new nvgpu_err() and nvgpu_warn() macros take struct gk20a pointer. Convert code to use the more portable macros. JIRA NVGPU-16 Change-Id: Ia51f36d94c5ce57a5a0ab83b3c83a6bce09e2d5c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1331694 Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> GVS: Gerrit_Virtual_Submit
* 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: Add wrapper for linux/types.hTerje Bergstrom2017-04-03
| | | | | | | | | | | | | | | | Add wrapper header nvgpu/types.h. It checks if build is for Linux kernel and pulls in linux/types.h. Delete also all #includes for linux/types.h which are not strictly necessary, and change the remaining ones to use the new wrapper. JIRA NVGPU-13 Change-Id: I1ddfef0b0b9d840e3e41a62f69c7cb9148d2d5fa Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1453371 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Use new kmem API functions (misc)Alex Waterman2017-03-30
| | | | | | | | | | | | | | | | | | | | | Use the new kmem API functions in misc gk20a code. Some additional modifications were also made: o Add a struct gk20a pointer to gk20a_fence to enable proper kmem free usage. o Add gk20a pointer to alloc_session() in dbg_gpu_gk20a.c to use kmem API for allocating a session. o Plumb a gk20a pointer through the fence creation and deletion. o Use statically allocated buffers for names in file creation. Bug 1799159 Bug 1823380 Change-Id: I3678080e3ffa1f9bcf6934e3f4819a1bc531689b Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1318323 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: delete unused #includes missing in 4.9Konsta Holtta2017-03-27
| | | | | | | | | | | | | Drop old unnecessary references to clock and edp. These headers are not in kernel-4.9 (yet?). Add proper #ifdefs for #including soctherm. Bug 1853519 Change-Id: I28e829f78df356e5efcffd9bd985fd736e76d2c0 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1327659 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Implement get_rate/set_rate as GPU opTerje Bergstrom2017-03-16
| | | | | | | | | | | | | | | | | | | Move clock APIs from gk20a_platform to gpu_ops. At the same time allow use of internal get_rate/set_rate for querying both GPCCLK and PWRCLK on iGPU. At the same time we can replace calls to clk framework with the new HAL and drop direct dependency to clk framework. gp10b ops were replaced as a whole at HAL initialization. That replaces anything set in platform probe stage, so reduce that to touch only clock gating regs. Change-Id: Iaf219b1f000d362dbf397d45832f52d25463b31c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1300113 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: compare rounded freq to last valueDeepak Nibade2017-01-20
| | | | | | | | | | | | | | | | | | We right now compare requested value to the last freq value. Last freq value is always a rounded value, whereas requested value need not be a rounded value Hence it is incorrect to compare requested value to last freq value Fix this by comparing rounded value to last_freq Change-Id: I7c6ea7c4e57105598c9af75efe70016b7fa8038b Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1287360 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: use soc/tegra/chip-id.h for soc headerShardar Shariff Md2017-01-20
| | | | | | | | | | | | The soc tegra headers are unified and moved all the content of linux/tegra-soc.h to the soc/tegra/chip-id.h to have the single soc header for Tegra. Change-Id: I281e19dd3eb1538b8dfbea4eb0779fb64d1fcffa Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com> Reviewed-on: http://git-master/r/1288365 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: store last_freq in gk20a structDeepak Nibade2016-12-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In gk20a_scale_target(), to check for duplicate freq requests we compare current frequency with devfreq->previous_freq But for very first request after boot, we have devfreq->previous_freq set to MIN freq And in case we evaluate new frew as MIN freq then we skip calling postscale() and scaling of EMC clock This results in keeping EMC at MAX value To fix this, add new variable last_freq in gk20a structure. Use this variable to store frequency value and to compare for duplicate requests Bug 200255163 Bug 200257544 Change-Id: Icfc57234c63f68cce8ccf8221237105272dad853 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1263747 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: set clk_rate on frequency changeSachit Kadle2016-11-17
| | | | | | | | | | | | | | | | | | | | | | Currently, in gk20a_scale_target, we set clock frequency even if it is equivalent to the rate previously requested by the governor. This change adds a check to bypass this in case new_frequency == prev_frequency. These clocking operations result in multiple BPMP calls, and add significant overhead to submit time. So, we avoid these operations when possible. Bug 1795076 Change-Id: I0f180564e54581f0f4add4626c647e0b9a1bbe43 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1247913 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Aaron Huang <aaronh@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: move freq clipping to target functionDeepak Nibade2016-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | We right now obtain pm_qos frequency requirments in qos notifier callback gk20a_scale_qos_notify() But now we want to limit GPU frequencies based on frequency limited from devfreq nodes And devfreq requirement should precede over qos requirements Hence, move all frequency estimation and clipping to function gk20a_scale_target() which sets the frequency at the end Bug 200245796 Change-Id: I0572c676dce0acc0917924a11e4c0fb4a9db4e6e Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1243427 (cherry picked from commit 81c757a3232463d126aecba64ca0c55d8e4423d2) Reviewed-on: http://git-master/r/1239936 Reviewed-by: Aaron Huang <aaronh@nvidia.com> Tested-by: Aaron Huang <aaronh@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: unify nvgpu and pci probeDeepak Nibade2016-09-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have completely different versions of probe for nvgpu and pci device Extract out common steps into nvgpu_probe() function and separate it out in new file nvgpu_common.c Divide task of nvgpu_probe() into further smaller functions Do platform specific things (like irq handling, memresource management, power management) only in individual probes and then call nvgpu_probe() to complete the common initialization Move all debugfs initialization to common gk20a_debug_init() This also helps to bringup all debug nodes to pci device Pass debugfs_symlink name as a parameter to gk20a_debug_init() This allows us to set separate debugfs symlink for nvgpu and pci device In case of railgating, cde and ce debugfs, check if platform supports them or not Copy vidmem_is_vidmem from platform to mm structure and set it to true for pci device Return from gk20a_scale_init() if we don't have either of governor or qos_notifier Fix gk20a_alloc_debugfs_init() and gk20a_secure_page_alloc() to receive device pointer instead of platform_device Export gk20a_railgating_debugfs_init() so that we can call it from gk20a_debug_init() Jira DNVGPU-56 Jira DNVGPU-58 Change-Id: I3cc048082b0a1e57415a9fb8bfb9eec0f0a280cd Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1204207 (cherry picked from commit add6bb0a3d5bd98131bbe6f62d4358d4d722b0fe) Reviewed-on: http://git-master/r/1204462 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: check for valid function pointersseshendra Gadagottu2016-07-25
| | | | | | | | | | | | | | | | Before calling prod settings functions, check for availability of those functions. Similar check is extended for get_clk_freqs. Bug 1735760 Change-Id: Ic4b38079043ab2049a479a2d8bb0cb6091e94f4a Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1181571 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Adeel Raza <araza@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: add call back for get_cur_freqsreenivasulu velpula2016-06-07
| | | | | | | | | | | | | | | | | | | | | | | | When thermal throttling triggers gpcclk clock changes, devfreq driver need to have call back for get_cur_freq to get current gpu frequency. With out this change, "17000000.gp10b/cur_freq" interface won't show the current gpcclk frequency, when thermal throttling triggers gpcclk frequency changes. Bug 1740309 Change-Id: I2484728094883abc285b2a3808bb2cef26a4ea96 Signed-off-by: sreenivasulu velpula <svelpula@nvidia.com> Reviewed-on: http://git-master/r/1145912 (cherry picked from commit 0a6ef7b121d1b8aeba42cefa6e8b090b1ccd15e7) Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/1147652 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Use device instead of platform_deviceTerje Bergstrom2016-04-08
| | | | | | | | | Use struct device instead of struct platform_device wherever possible. This allows adding other bus types later. Change-Id: I1657287a68d85a542cdbdd8a00d1902c3d6e00ed Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1120466
* gpu: nvgpu: move pmu_load_update() to get_dev_status()Deepak Nibade2016-01-21
| | | | | | | | | | | | | | | | | | | | | | | | We currently call gk20a_pmu_load_update() before calling update_devfreq() But it is possible to disable governor and set a constant/max frequency. In that case we will unnecessarily keep executing gk20a_pmu_load_update() for each submit Hence. move gk20a_pmu_load_update() to gk20a_scale_get_dev_status() so that we call gk20a_pmu_load_update() only when we really have to scale the frequency Bug 200161377 Change-Id: Ifac5a659a3a2d088b636f048213c2fbec801bdb9 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/929509 (cherry picked from commit f857a1b31400dfc0c35c58c6424aaac36bc09e7c) Reviewed-on: http://git-master/r/933704 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: fix Coverity issuesDeepak Nibade2015-11-25
| | | | | | | | | | | | | | | | | | | | - operands not affecting result (id = 12845) - logically dead code (id = 12890) - dereference after null check (id = 12968) - unsigned compared to 0 (id = 13176) - resource leak (id = 13338, 18673) - unused pointer value (id = 13916) Bug 1703084 Change-Id: I2f401dd93126af27748c53fa1b3a59cb154af36b Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/835143 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Sachin Nikam <snikam@nvidia.com>
* gpu: nvgpu: scaling driver updateSeshendra Gadagottu2015-11-19
| | | | | | | | | | | | | | | | Update scaling driver to support to differnt clock frameworks. Bug 200147662 Reviewed-on: http://git-master/r/816929 (cherry picked from commit cbd4cb575fb2d27870089797ff2a8f22540b87e8) Change-Id: Ie50304b4a593d74bd43b271005cc9616fdb52a6e Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: http://git-master/r/834748 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: 3d.emc frequency scalingAnders Kugler2015-04-04
| | | | | | | | | | | | | | | | | | | | o QoS notifier Refresh the gpu load query because we may update the emc target if gpu load changed. o tegra_postscale() Scaling the emc clock to a new target may be necessary if the gpu load changed at low gpu frequencies. Bug 1591643 Change-Id: Ibc6f73c02eaf6cedb7f0f579d5f4d90c735d354a Signed-off-by: Anders Kugler <akugler@nvidia.com> Reviewed-on: http://git-master/r/680929 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
* gpu: nvgpu: add gk20a_scale_exit()Konsta Holtta2015-03-18
| | | | | | | | | | | | When removing the module, remove the device from devfreq and free resources allocated when scaling is initialized. Bug 1476801 Change-Id: I7bb0f8112a5bf7e5ce2fc56cf8af7059d910002c Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/594444 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add sw shadow for load valueArto Merilainen2015-03-18
| | | | | | | | | | | | | | | | Reading the load value may increase CPU power consumption temprorarily. In most cases we are ok with a value that was read a moment earlier. This patch introduces a software shadow for gpu load. The shadow is updated before starting scaling and all scaling code paths use the sw shadow. Change-Id: I53d2ccb8e7f83147f411a14d3104d890dd9af9a3 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/453347 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Create load sysfs node alwaysArto Merilainen2015-03-18
| | | | | | | | | | | | | | | Currently creation of the load sysfs node is bound to devfreq profile initialisation, however, this information is useful even if the scaling is not enabled. This patch modifies the code to create the sysfs node always. Bug 1485489 Change-Id: Id20433344aa81108f89a36cd56c9a73dd9d2e1c8 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/399474 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Add NVIDIA GPU DriverArto Merilainen2015-03-18
This patch moves the NVIDIA GPU driver to a new location. Bug 1482562 Change-Id: I24293810b9d0f1504fd9be00135e21dad656ccb6 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/383722 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-07-04 22:22:05 -0400