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path: root/drivers/gpu/nvgpu/nvgpu_common.c
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* gpu: nvgpu: allow defer probing to workSrikar Srimath Tirumala2017-01-30
| | | | | | | | | | | | | | Platform probe can return a EDEFER_PROBE, perform user init only if platform probe is successful so that all the device objects are created only once. Bug 200233943 Change-Id: If6f41af13c29d070743896f26e6650228153027b Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com> Reviewed-on: http://git-master/r/1280831 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Add sysfs nodes for timeslice min/maxPeter Boonstoppel2017-01-12
| | | | | | | | | | | | | | | | | | The timeslice values that can be selected for a particular channel/tsg are bounded by a static min/max. This change introduces two sysfs nodes that allow these bounds to be configured from userspace. min_timeslice_us max_timeslice_us Bug 200251974 Bug 1854791 Change-Id: I5d5a14225eee4090e418c7e43629324114f60768 Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com> Reviewed-on: http://git-master/r/1280372 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Move deferred interrupt wait codeAlex Waterman2017-01-04
| | | | | | | | | | | | | | | | | Move the code that waits for deferred interrupts to nvgpu_common.c and make it global. Also rename that function to use nvgpu_ as the function prefix. Bug 1816516 Bug 1807277 Change-Id: I42c4982ea853af5489051534219bfe8b253c2784 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1250027 (cherry picked from commit cb6fb03e20b08e5c3606ae8a5a9c237bfdf9e7da) Reviewed-on: http://git-master/r/1274475 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: Allow regops lists longer than 128Sami Kiminki2016-12-26
| | | | | | | | | | | | | | | | Process long regops lists in 4-kB fragments, overcoming the overly low limit of 128 reg ops per IOCTL call. Bump the list limit to 1024 and report the limit in GPU characteristics. Bug 200248726 Change-Id: I3ad49139409f32aea8b1226d6562e88edccc8053 Signed-off-by: Sami Kiminki <skiminki@nvidia.com> Reviewed-on: http://git-master/r/1253716 (cherry picked from commit 22314619b28f52610cb8769cd4c3f9eb01904eab) Reviewed-on: http://git-master/r/1266652 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: MSCG supportMahantesh Kumbar2016-12-26
| | | | | | | | | | | | | | | | | | | | | | | | | - Added enable_mscg, mscg_enabled & mscg_stat flags, mscg_enabled flag can be used to controll mscg enable/disable at runtime along with mscg_stat flag. - Added defines & interface to support ms/mclk-change/post-init-param - Added defines for lpwr tables read from vbios. - HAL to support post init param which is require to setup clockgating interface in PMU & interfaces used during mscg state machine. - gk20a_pmu_pg_global_enable() can be called when pg support required to enable/disable, this also checks & wait if pstate switch is in progress till it complets - pg_mutex to protect PG-RPPG/MSCG enable/disable JIRA DNVGPU-71 Change-Id: If312cefc888a4de0a5c96898baeaac1a76e53e46 Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com> Reviewed-on: http://git-master/r/1247554 (cherry picked from commit e6c94948b8058ba642ea56677ad798fc56b8a28a) Reviewed-on: http://git-master/r/1270971 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Store pending sema waitsAlex Waterman2016-12-19
| | | | | | | | | | | | | | | | | | | | | | | | | Store pending sema waits so that they can be explicitly handled when the driver dies. If the sema_wait is freed before the pending wait is either handled or canceled problems occur. Internally the sync_fence_wait_async() function uses the kernel timers. That uses a linked list of possible events. That means every so often the kernel iterates through this list. If the list node that is in the sync_fence_waiter struct is freed before it can be removed from the pending timers list then the kernel timers list can be corrupted. When the kernel then iterates through this list crashes and other related problems can happen. Bug 1816516 Bug 1807277 Change-Id: Iddc4be64583c19bfdd2d88b9098aafc6ae5c6475 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1250025 (cherry picked from commit 01889e21bd31dbd7ee85313e98079138ed1d63be) Reviewed-on: http://git-master/r/1261920 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: fix sparse warningDeepak Nibade2016-10-10
| | | | | | | | | | | | | | | | Fix below sparse warning by including nvgpu_common.h from nvgpu_common.c nvgpu/drivers/gpu/nvgpu/nvgpu_common.c:105:5: warning: symbol 'nvgpu_probe' was not declared. Should it be static? Bug 200088648 Change-Id: I81f20a5be1c16ba33d6c17a6c72836107878d1df Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/1233960 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Suppress error msg from VBIOS overlayTerje Bergstrom2016-10-09
| | | | | | | | | | | | | | | | | | | | Suppress error message when nvgpu tries to load VBIOS overlay, but one is not found. This situation is normal. This is done by moving gk20a_request_firmware() to be nvgpu generic function nvgpu_request_firmware(), and adding a NO_WARN flag to it. Introduce also a NO_SOC flag to suppress attempt to load firmware from SoC specific directory in addition to the chip specific directory. Use it for dGPU firmware files. Bug 200236777 Change-Id: I0294d3308f029a6a6d3c2effa579d5f69a91e418 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1223840 (cherry picked from commit cca44c3f010f15918cdd2259c15170ba1917828a) Reviewed-on: http://git-master/r/1233353 GVS: Gerrit_Virtual_Submit
* 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>
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