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* gpu: nvgpu: implement mapping for sparse allocationKirill Artamonov2015-03-18
| | | | | | | | | | | | | | | | Implement support for partial buffer mappings. Whitelist gr_pri_bes_crop_hww_esr accessed by fec during sparse texture initialization. bug 1456562 bug 1369014 bug 1361532 Change-Id: Ib0d1ec6438257ac14b40c8466b37856b67e7e34d Signed-off-by: Kirill Artamonov <kartamonov@nvidia.com> Reviewed-on: http://git-master/r/375012 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Handle PBDMA errorsTerje Bergstrom2015-03-18
| | | | | | | | | Add handling for PBDMA errors. Bug 1498688 Change-Id: Iff391110db1c270c05c76e6a14b7c666da8e3751 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: add is_railgated() callbackDeepak Nibade2015-03-18
| | | | | | | | | | | Add is_railgated() platform callback to check status of gk20a power rail Bug 1376916 Bug 1487804 Change-Id: Ia0d909210dc409ab684eb6f20528b81500aecd5c Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: sysfs to put gpu into idleDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | - Add a sysfs "force_idle" to forcibly idle the GPU - read on this sysfs will return the current status 0 : not in idle (running) 1 : in forced idle state "echo 1 > force_idle" will force the gpu into idle "echo 0 > force_idle" will cause the gpu to resume Bug 1376916 Bug 1487804 Change-Id: I48dfd52e0d14561220bc4baea0776d1bdfaa7ea5 Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: add railgate check in do_idle()Deepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | In gk20a_do_idle(), check gk20a rail status before returning. If rail is off, then only return success otherwise return failure Bug 1376916 Bug 1487804 Change-Id: I6280bf06c686b8baa4d6f49e90f47148411c3e02 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/415281 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Support sync framework with semaphoresLauri Peltonen2015-03-18
| | | | | | | | | | | | | Add sync_gk20a.c/h that support creating Android sync fence fd's from gk20a semaphores. Bug 1445450 Change-Id: I42272996721ceec38ba5510eae6770720bc9dd10 Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com> Reviewed-on: http://git-master/r/374843 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Implement ELPG flush for gm20bTerje Bergstrom2015-03-18
| | | | | | | | | | | ELPG flush is initiated from a common broadcast register, but must be waited on via per-L2 registers. Split gk20a and gm20b versions of the flush. Change-Id: I75c2d65e8da311b50d35bee70308b60464ec2d4d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/401545 Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Initialize FECS explicitly on recoveryTerje Bergstrom2015-03-18
| | | | | | | | | Instead of calling second phase of PMU boot sequence, initialize FECS directly. Change-Id: I7f9de0c5ec42049033839d244979f3f3daabf317 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/410204
* gpu: nvgpu: Add gm20b fecs/gpccs bootloader supportTerje Bergstrom2015-03-18
| | | | | | | | | Add support for booting FECS and GPCCS via faster bootloader method. We leave this disabled until the bootloader binaries are checked in. Change-Id: I39df5d116f7a33486407518c743638b01923970d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/413005
* gpu: nvgpu: Remove deferred ELPG enableTerje Bergstrom2015-03-18
| | | | | | | | | | | Prevent the disable ELPG routine from calling deferred re enablement of ELPG. Remove code related to deferred ELPG enable.. Change-Id: I9401e6e0f26a4e332e50eb38439e2ef6fcb4225d Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/410203 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: Add PMU sent/recvd messages to dbg logTerje Bergstrom2015-03-18
| | | | | | | | | Add debug log entries for received and sent PMU messages. Change-Id: I94cecca76257d74785c13f1c5f97a7233361019f Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/410202 Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
* gpu: nvgpu: gk20a: add do_{idle()/unidle()} APIsDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | Add below two new APIs for gk20a : 1) gk20a_do_idle() this API will force GPU to idle and railgate 2) gk20a_do_unidle() this API will unblock all the tasks blocked by do_idle() Bug 1487804 Change-Id: Ic5e7f2d19fb8d35f43666d0e309dde3022349d92 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/412061 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: add busy lockDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | - add rw_semaphore busy_lock for gpu busy() path - take read lock on busy_lock inside gk20a_busy() so that all usual requests can execute simultaneously - write lock can be taken when we need to block all of the gk20a_busy() calls Bug 1487804 Change-Id: I1b162b38bce9621723d3e45280c6076816cf771a Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/412060 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: export wait_channel_idle()Deepak Nibade2015-03-18
| | | | | | | | | | | | | | - Export gk20a_wait_channel_idle() function from channel_gk20a.h - also, return error -EBUSY from this function when channel is found to be not idle Bug 1487804 Change-Id: Ia7425e9b1332260ee9a53dca55ab07541f2755a9 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/412059 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: When rail gating, flush only onceTerje Bergstrom2015-03-18
| | | | | | | | | | When rail gating invoke G_ELPG_FLUSH only once. Bug 1421824 Change-Id: Ibde0e32b212e3b030e69a9cb837c87789887aabb Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/408209
* gpu: nvgpu: Allow suppressing WFI on submitTerje Bergstrom2015-03-18
| | | | | | | | | | | Allow suppressing WFI when submitting work and requesting a fence back. Bug 1491545 Change-Id: Ic3d061bb4f116cf7ea68dbd6a1b2ace9f11d0ab5 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/390457
* gpu: nvgpu: Use old ctxsw boot method on gm20bTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Boot FECS/GPCCS with old method on gm20b. We don't yet have bootloader for it. Change-Id: I09046960cd86b0402d3ea2cd8e4c92597766fa10 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/412604 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
* gpu: nvgpu: Add gk20a semaphore APIsLauri Peltonen2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add semaphore_gk20a.c/h that implement a new semaphore management API for the gk20a driver. The API introduces two entities, 'semaphore pools' and 'semaphores'. Semaphore pools are memory areas dedicated for hosting one or more semaphores. Typically, one pool equals one 4K page. A semaphore pool is always mapped to the kernel memory, and it can be mapped and unmapped to gpu address spaces using gk20a_semaphore_pool_map/unmap. Semaphores are backed by 16 bytes of memory allocated from a semaphore pool. The value of a semaphore can be 0=acuired or 1=released. When allocated, the semaphores are initialized to the acquired state. They can be released, or their releasing can be waited for by the CPU or GPU. Semaphores are intended to be used only once, and after they are released they should be freed so that the slot within the semaphore pool can be reused. However GPU jobs must take references to the semaphores that they use (similarly as they take references on memory buffers that they use) so that the semaphore backing memory is not reused too soon. Bug 1450122 Bug 1445450 Change-Id: I3fd35f34ca55035decc3e06a9c0ede20c1d48db9 Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com> Reviewed-on: http://git-master/r/374842 Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: fix syncpt names for gk20aDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | nvhost_get_syncpt_host_managed() creates syncpt name based on platform_device pointer passed to it Passing host1x's pointer to this API results in setting gk20a syncpt names as "host1x_0" which is conflicting Hence to restore this pass gk20a's device pointer which gives syncpt names as "gk20a.0_0" Also, add a syncpt check for sycnpt received. Bug 1305024 Change-Id: I4ff96c7c9ebff2dca385c5787a85b4a9451b9514 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/410121 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Prune redundant cache maintenanceTerje Bergstrom2015-03-18
| | | | | | | | | | | | Remove redundant cache maintenance operations. Instance blocks and graphics context buffers are uncached, so they do not need any cache maintenance. Bug 1421824 Change-Id: Ie0be67bf0be493d9ec9e6f8226f2f9359cba9f54 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/406948
* gpu: nvgpu: Always initialize system vmTerje Bergstrom2015-03-18
| | | | | | | | | | | | | | | PMU, FECS and GPCCS use the same address space. We used to initialize the address space only if PMU is enabled. Create the system address space always. FECS and GPCCS used to have slower bit bang and faster DMA method for loading ucode. Slower method is needed when FECS and GPCCS do not have an address space. Remove the slower method as not anymore needed. Change-Id: I155619741ecc36aa6bf13a9c1ccb03c7c1330f0a Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/406771
* gpu: nvgpu: gk20a: free syncpt if last submit is completeDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | In channel_update(), we detect if channel is idle and if it is idle then we free the syncpt. We do not free the syncpt if WFI is scheduled on some other path. Instead of checking for WFI, we can check if last submit is complete or not (it can be WFI as well) and if last submit is complete then we can free the syncpt. Locking mechanism using submit lock will take care that syncpt is kept alive until last submit or WFI completes Bug 1305024 Change-Id: Ieafb82e1f924a01236ca73ed151eb03e88729835 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/405201 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Do not realloc perfmon sample bufferTerje Bergstrom2015-03-18
| | | | | | | | | | | | Allocate perfmon sample buffer only once. Bug 1512840 Change-Id: I3f2a62b0fa28e6ba984ae3068a1d56ba461a0c29 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/408180 Reviewed-by: Thomas Cherry <tcherry@nvidia.com> Tested-by: Thomas Cherry <tcherry@nvidia.com>
* gpu: nvgpu: Register as subdomain of host1xTerje Bergstrom2015-03-18
| | | | | | | | | | | | | | | Add gk20a as a sub power domain of host1x. This enforces keeping host1x on when using gk20a. Bug 200003112 Change-Id: I08db595bc7b819d86d33fb98af0d8fb4de369463 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/407006 (cherry picked from commit 009812b3e510518740e9c7e89b8b8b80439fe26a) Reviewed-on: http://git-master/r/408013 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gm20b: add ltc isrKevin Huang2015-03-18
| | | | | | | | | | Bug 1507804 Change-Id: Ic58e21f4d995cf4f4fc7bb5fc6ec84a6c4d25d46 Signed-off-by: Kevin Huang <kevinh@nvidia.com> Reviewed-on: http://git-master/r/403214 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: halize ltc isrKevin Huang2015-03-18
| | | | | | | | | | Bug 1507804 Change-Id: I3cca0e83dbf911c94422f8bb0b2df675a170b990 Signed-off-by: Kevin Huang <kevinh@nvidia.com> Reviewed-on: http://git-master/r/403213 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* Revert "gpu: nvgpu: Keep host1x on when GPU on"Matt Pedro2015-03-18
| | | | | | | | | | | This reverts commit 20d48a759b032116e3092e1df76518065da59879. Change-Id: I93718a314b70ee9284a83ca69964883e670ad78d Signed-off-by: Matt Pedro <mapedro@nvidia.com> Reviewed-on: http://git-master/r/407969 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Do not clear PMU state on rail gateTerje Bergstrom2015-03-18
| | | | | | | | | When rail gating, we cleared all PMU status. Clear only the relevant fields. Change-Id: I5b4e8d74339aae6f1c6b945f45b8378bb563e8be Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/406843
* gpu: nvgpu: Keep host1x on when GPU onTerje Bergstrom2015-03-18
| | | | | | | | | Remove the path for turning on only gk20a. Always when turning on hardware, turn both host1x and GPU on. Change-Id: I5f972a487d3348bf2254bdb0fadb42ca600a559e Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/406405
* gpu: nvgpu: Fixes to static offset mappingsArto Merilainen2015-03-18
| | | | | | | | | | | | | | This patch addresses two issues in fixes offset mappings: - VA unmapping did not use lists safely. This caused an application hang if the application did not free all (fixed offset) buffers before quiting. - GPU was not powered closing AS node. If the address space had areas that were not freed, the driver tried to access hw without powering it up first. Change-Id: Ida526d222ea4e03b8d765eca16574ddc1823e60d Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/405872 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Generic platformArto Merilainen2015-03-18
| | | | | | | | | | | | | This patch adds minimal t124 generic platform configuration to platform_gk20a_generic.c to allow testing the minimal configuration. Bug 1434573 Change-Id: I1a3f00e14661023c8ff77d7576ba70cf98a95db5 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/381427 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Fall-back to generic platformArto Merilainen2015-03-18
| | | | | | | | | | | | | | | | | Currently the generic platform is used only if the device tree defines that we have a generic platform available, however, the generic platform is fully compatible with the gk20a we have in tegra. This patch modifies the definitions so that we use generic platform also for tegra - even if if tegra configuration option is not enabled. Bug 1434573 Change-Id: Ib35ce0ab935d27764e960bf4d74a5016ae047a1f Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/396867 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: Control powergating on regopsSandarbh Jain2015-03-18
| | | | | | | | | | | | | | | Enable/disable powergating around regops so that the user need not call the powergating IOCTLs with the regops IOCTL. If the user does call the powergating IOCTL then the ref-counting will ensure the correct behavior. Bug 1451949 Change-Id: I1746f7d7cd1d2c0c497c213939df44a59d5d2834 Signed-off-by: Sandarbh Jain <sanjain@nvidia.com> Reviewed-on: http://git-master/r/395131 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Create sysfs symlinksArto Merilainen2015-03-18
| | | | | | | | | | | | | | | gk20a is going to be moved under platform bus, however, the sysfs interface should remain stable over the transition period. This patch adds a symlink to keep current interfaces stable. Bug 1311528 Bug 1434573 Change-Id: I951000f4b25285ff96e93eb726342d5b76cc84f1 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/396926 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Get host1x device from DTSArto Merilainen2015-03-18
| | | | | | | | | | | | | | | Currently the gpu driver assumes that the GPU is a child of host1x. This is an invalid assumption and therefore we need to get the host1x device from device tree based on nvidia,host1x property. Bug 1311528 Bug 1434573 Change-Id: I097e39369aaa15ab6652cd23f353f88f7c2b9c48 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/395664 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Disable timeout if not on siliconTerje Bergstrom2015-03-18
| | | | | | | | Change-Id: I0add505d4f5c4b136f9f0228adbdc9aba960fcba Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/404276 Reviewed-by: Antoine Chauveau <achauveau@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: Add support for SMSKED kindTerje Bergstrom2015-03-18
| | | | | | | | | | | Bug 1470957 Change-Id: Ief7c8970dafcc386a3a954593d4bb3a53be1b2a0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/404261 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Chris Dragan <kdragan@nvidia.com> Tested-by: Chris Dragan <kdragan@nvidia.com>
* gpu: nvgpu: gk20a: Update perfmon initPrashant Malani2015-03-18
| | | | | | | | | | | | | | | | | Make the perfmon sampling configurable, by adding an 'enabled' flag. This is set according to the CONFIG initially. Modify the perfmon event handler to not touch clock rates. Add a counter to count the number of perfmon events. Also add debugfs entries for the above. Bug 1410515 Change-Id: Ic8197eef0e46e35af1179a5b06140393541cfd43 Signed-off-by: Prashant Malani <pmalani@nvidia.com> Reviewed-on: http://git-master/r/351564 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-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: Fix return value in pmu mutex releaseArto Merilainen2015-03-18
| | | | | | | | | | | | Bug 1495617 Change-Id: I689ed4303bb3959bb24bf79d52891de28431fc67 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/394904 (cherry-picked from commit a04c51430b186d23953960965ce3ab229968d1f7) Reviewed-on: http://git-master/r/399565 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: set syncpt_aggressive_destroyDeepak Nibade2015-03-18
| | | | | | | | | | | | | | Set the flag syncpt_aggressive_destroy to enable destroying syncpts aggressively Bug 1305024 Change-Id: Iedff9c6bdb6bbe02057972733126ce685daa8d7f Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/400234 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: add syncpt null checksDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | On channel_finish() path, we first check if last submit was WFI and in that case we do not submit new WFI but just wait on old syncpt fence. But it is possible that sync resource is already freed from another path (channel_suspend()) Hence add a NULL check there to prevent Null pointer exception. Also, in channel_free() path, move syncpt free API after channel_unbind() since we logically free the syncpt after unbinding the channel. Bug 1305024 Change-Id: Icc2fc83f004310560fc459527e1d37730428ec2d Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/400233 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: free syncpt when channel becomes idleDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | All of the channel's submit jobs are added to the list channel->jobs In channel_update(), we iterate over this list and check if any job has completed. If any job is complete then we remove it from the list. If this list is empty then it means channel is idle and we can free its syncpt. Hence after iterating this list, check if it is empty or not. If it is empty AND if we are aggressive to free the syncpt (syncpt_aggressive_destroy flag is set) then free the syncpt at this point. Keep the syncpt free code inside submit_lock to avoid race conditions. Also, do not free the syncpt if we have already scheduled WFI on some other path. In that case, syncpt is still needed to check for channel idle. Once WFI completes, we free the syncpt anyway. Bug 1305024 Change-Id: I1654e1db3b76b7ad14644dbb900b03f195ca3b2c Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/398617 Reviewed-by: Shridhar Rasal <srasal@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gk20a: add submit_lockDeepak Nibade2015-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add submit mutex lock to avoid race conditions between submitting a job, removing a job and submitting WFI With this lock make below operations atomic : during submit_gpfifo() - 1. getting new syncpt 2. inserting syncpt increment 3. submitting gpfifo 4. setting job completion interrupt during submit_wfi() - 1. getting new syncpt 2. inserting syncpt increment when idle during channel_update() - 1. checking the submit job completion 2. freeing the job if it is completed Bug 1305024 Change-Id: I0e3c0b8906d83fd59642344626ffdf24fad2aaab Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: http://git-master/r/397670 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: gm20b: Alloc phys mem for CBC in simArto Merilainen2015-03-18
| | | | | | | | | | | | | | | CBC frontdoor access works incorrectly in the simulator if CBC is allocated from IOVA. This patch makes CBC allocation to happen from physical memory if are running in simulator. Bug 1409151 Change-Id: Ide08f4eab6911adc5737001c6d751ee227fec8f9 Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-on: http://git-master/r/401544 Tested-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
* gpu: nvgpu: Implement gm20b fifo recoveryTerje Bergstrom2015-03-18
| | | | | | | | | | | | | Implement gm20b version of fifo recovery. Bug 1495967 Change-Id: I2792b217178d157427f49e0c450d4ac620399962 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/394138 Reviewed-on: http://git-master/r/401402 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
* gpu: nvgpu: gm20b: Add fuse headerTerje Bergstrom2015-03-18
| | | | | | | Change-Id: I85038d320ed224074eca14c32d7cb6fd3ed79070 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/401500 Reviewed-by: Automatic_Commit_Validation_User
* gpu: nvgpu: gk20a, gm20b headersKen Adams2015-03-18
| | | | | | | | update headers from latest gen_register/ip_check info Change-Id: Iae892ab7138e7bba4abc821b9d7893e768647daa Signed-off-by: Ken Adams <kadams@nvidia.com> Reviewed-on: http://git-master/r/399382
* gpu: nvgpu: gk20a: minor fixesKen Adams2015-03-18
| | | | | | | | | fixes one use of unitialized var renames a register to make it match dev_* file. Change-Id: Iafba659bbf2df509e0b494b2c5dab3819bf650ef Signed-off-by: Ken Adams <kadams@nvidia.com> Reviewed-on: http://git-master/r/394792
* gnu: nvgpu: gm20b: CBC clean and invalidateBo Yan2015-03-18
| | | | | | | | | the CBC clean and invalidate is done for gk20a for bug 1409151, now it's time to do the same fo gm20b. the text of this change is strictly copied from gk20a, simply to make build pass. Change-Id: Id717cb1e2ca0fa3f8483c3fd40d7629a9cc85ec9 Signed-off-by: Bo Yan <byan@nvidia.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-05 21:09:53 -0500