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path: root/include/linux/nvhost.h
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2012-08-29video: tegra: host: Disable irq when clock gatingTerje Bergstrom
Disable host1x interrupts when clock gating host1x. This fixes a race where host1x interrupt was raised at the same time when host1x clock is turned off. Bug 1031724 Change-Id: I169cd5796608b8888a6b48ed99bb5da754559b2c Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/125129 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>
2012-07-30video: tegra: host: adding throughput hint in 3dfsIlan Aelion
adding support for using a throughput hint given by the tegra-gfx misc device in the 3d scaling code. If throughput hint usage is enabled and the latest throughput hint is recent enough (less than 1 second old), the throughput hint is used to control 3d frequency scaling. Otherwise the existing idle time percentage estimate is used. Bug 991589 Change-Id: I68893e5ce7ef922b95ce5f5b3664eb8e1fdd4027 Signed-off-by: Ilan Aelion <iaelion@nvidia.com> Reviewed-on: http://git-master/r/116866 Reviewed-by: Lokesh Pathak <lpathak@nvidia.com> Tested-by: Lokesh Pathak <lpathak@nvidia.com>
2012-07-01video: tegra: host: Serialize 2D jobsTerje Bergstrom
Force serialization of 2D jobs by inserting a host wait for previous maximum at the beginning of the job. Bug 1002293 Change-Id: I667ad4565cc32186ea7ccf16845c68d1b1bbdf78 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/111475 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Donghan Ryu <dryu@nvidia.com> Reviewed-by: Arto Merilainen <amerilainen@nvidia.com> Reviewed-by: Daniel Parker <dparker@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Francis Hart <fhart@nvidia.com>
2012-06-25video: tegra: host: add public APIs for power & syncpoint managementMayuresh Kulkarni
- add public APIs for power & sync-point management - all these APIs end with string _ext - all these APIs can be found in linux/nvhost.h - all these APIs take nvhost_device as first argument - all these APIs are based on the fact that host1x hardware driver is parent of all the host1x client driver - this allows clients of host1x which are outside host1x driver code to just include nvhost.h & use host1x driver interfaces - this also hides the implementation details of power & sync-point inside host1x driver code - move sync point ids for dc and nvavp to nvhost.h Bug 961009 Change-Id: I1a9ca074df87656c4d4bd246853e039a7850d56a Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/109219 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> GVS: Gerrit_Virtual_Submit
2012-06-18video: tegra: host: expose power management paramters via sysfsMayuresh Kulkarni
this commit exposes following power management parameter through sysfs: - clockgate_delay: delay after which module is clock gated after it goes idle. this read/write attribute & unit is ms. - powergate_delay: delay after which module is power gated after it is clock gated. this is read/write attribute & unit is ms. - refcount: current reference count on the module. this is read-only attribute. path is: /sys/devices/host1x/<device-name>/acm/ where <device-name> = name of device node like gr2d or gr3d etc Bug 845598 Change-Id: I6011eb90ee85b5fc576320272e657ce31f9e264d Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/108827 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Francis Hart <fhart@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
2012-06-14video: tegra: host: Remove version from dev nameTerje Bergstrom
Remove version from nvhost_device name, and use a new field, version, to distinguish between IP versions. This restores the sysfs API for 3D clock scaling back to its original path. Change-Id: I444ef728b7cab9e5ea3a08f3c7be0f1661209686 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/108501 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2012-06-14video: tegra: host: Register devices in SoC filesTerje Bergstrom
Move the device structures to the driver source code files. Register all nvhost_device's in one loop which is called from board file. host1x driver code is moved to live under host1x, too. This causes a need to add host to include path of tegradc and nvavp. Bug 982965 Change-Id: If99cf9d1ef6bc24663ee8294c19370429ed04ca7 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/104076 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2012-05-23video: tegra: host: move function pointers to nvhost_driverMayuresh Kulkarni
- currently, function pointers are inside nvhost_device - these functions abstract the device specific implementation of a functionality per SoC - move them to nvhost_driver so that nvhost_device can be instantiated from arch code using board files/device trees - add support to use single driver for multiple devices using concept of id_table. this will be useful in supporting multiple SoC devices binding single driver - also add some notes about how device name is expected Bug 871237 Change-Id: I4c75d7121d26c3bdc50f058e0d144d89ca0edbd9 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/100985 Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
2012-04-26video: tegra: host: Reset 3D after power onTerje Bergstrom
Sometimes 3D unit comes up with incorrect scissor configuration. Earlier patch added the scissor registers to the context save list, but that did not solve the problem. Remove the extra registers, and reset 3D after powering it up. Bug 939307 Change-Id: Id795f2d99ec3c6b907da2785b1816ce753af7a3f Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/87654 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Graziano Misuraca <gmisuraca@nvidia.com> Tested-by: Graziano Misuraca <gmisuraca@nvidia.com> Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
2012-03-21video: tegra: host: refactor for upstreamingMayuresh Kulkarni
- split the nvhost clients into their own directories - each client is a nvhost_device and nvhost_driver - all the code related to host1x control node is centralized at single place in dev.c - all the code related to host1x modules nodes is centralized at single place in bus_client.c - update the copyright notice & year for new files Bug 871237 Change-Id: Ief85064699e35ad02b48a7e54496928d7f085af4 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/83491 Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
2012-03-15video: tegra: host: Refactor context handling logicTerje Bergstrom
Currently nvhost hard codes usage of context handler and sync point id. Split the context handler and context structures into generic and host1x specific parts, and move the allocation to happen via a function pointer in nvhost_device. Also updates gr3d and mpe to use sync point id and waitbase from nvhost_device. Bug 926690 Change-Id: I7f00b450cac99f3816baa27b37ee4e4cf68cfe24 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/84901 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2012-03-07video: tegra: host: make nvhost_get_host inlineMayuresh Kulkarni
- nvhost_get_host returns host1x's master driver's private data - this host1x master is parent for all its modules. however, it does not have a parent of its own - so the debug_not_idle causes crash when there is an outstanding reference count on host1x by some module during suspend sequence - with this change, debug_not_idle returns error to pm core if host1x has an outstanding ref count. pm core then safely aborts the suspend and does resume Bug 947617 Change-Id: Ia2479c192bdd94028d090168f689823658062fd4 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/87658 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
2012-02-28video: tegra: host: Merge tegra_grhost and host1x devicesMayuresh Kulkarni
- tegra_grhost is a platform device that represents host1x - nvhost has device host1x which represents the same hardware - merge these two device structs - as the new struct is a nvhost_device, platform_driver is also converted into a nvhost_driver - register nvhost device before other graphics devices. this ensures that nvhost_probe() is called as soon as nvhost_driver is registered with the core. - this also ensures that nvmap is probed first, followed by nvhost, followed by tegra-dc and nvavp (if they are enabled). Change-Id: Ic420a6516a9cb20d6f481692a4db10fa6053dd90 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/82631 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2012-02-16Revert "video: tegra: host: use runtime pm for clock management"Simone Willett
This reverts commit 961c60fe7213d92793d6072abc16f58721a33fed Change-Id: I8ef0fbaee30e94c78b8df609f729953fee6d1583 Reviewed-on: http://git-master/r/84135 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Tested-by: Lokesh Pathak <lpathak@nvidia.com> Reviewed-by: Lokesh Pathak <lpathak@nvidia.com>
2012-02-13video: tegra: host: use runtime pm for clock managementMayuresh Kulkarni
- use runtime pm for clock management of host1x and its clients thus replacing ACM - start a delayed worker after disabling the clock if module supports power gating - in its timeout handler power gate the module after saving its context for next submit - use auto-suspend mode of runtime pm for clock management - pm core seems to keep a ref count on runtime pm thus we cannot use runtime pm's usage_count as an idicator of module idle during suspend - do not use runtime pm call-backs during system suspend. instead manage the clocks directly for context save of modules that support it - enable runtime pm only during boot-up as pm core disables it before suspending the device and enables it after resume for bug 887332 Change-Id: I3b30643e8e75c13684cf4edaaae4429c3a18d6eb Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/79186 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
2012-01-30video: tegra: host: CPU reg read to use power managementTerje Bergstrom
CPU register read did not have access to nvhost power management. Due to this only modules that were powered on previously are actually accessible via the API. This patch refactors CPU access to: * Move mutexes to sync point, as they're sync point operations * Move register address spaces to nvhost_device * Call register read with access to the respective nvhost_device * Initialize module completely at boot-up so that register reads can be done without an initialized channel. Reviewed-on: http://git-master/r/75275 Change-Id: I0db38cef7b2cd92dc64e7f55d227bdd2fdb8f752 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Varun Wadekar <vwadekar@nvidia.com> Reviewed-on: http://git-master/r/77764 Reviewed-by: Automatic_Commit_Validation_User
2012-01-24video: tegra: host: Access nvhost_master via drvdataTerje Bergstrom
Use standard drvdata interface for storing and accessing nvhost_master. Reviewed-on: http://git-master/r/72846 Change-Id: I191987c8f6d313a6ede9b59f723269cb6a197e8a Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Varun Wadekar <vwadekar@nvidia.com> Reviewed-on: http://git-master/r/76815 Reviewed-by: Automatic_Commit_Validation_User
2012-01-12video: tegra: host: Move device data to nvhost_deviceTerje Bergstrom
Move all device data from nvhost_channeldesc, nvhost_moduledesc and nvhost_module to nvhost_device. nvhost_devices are also assigned into a hierarchy to prepare for implementation of runtime power management. Change-Id: I1e18daae8fe538086cd1f453d316e0f73e9d7d92 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/72844 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Reviewed-on: http://git-master/r/74560 Reviewed-by: Varun Wadekar <vwadekar@nvidia.com> Tested-by: Varun Wadekar <vwadekar@nvidia.com>
2011-11-30nvhost: Move include files to kernel/includeTerje Bergstrom
To prepare for kernel modularization, nvhost include files need to be moved from mach-tegra/include to kernel/include. At the same time user space specific part is split into nvhost_ioctl.h. Bug 854182 Original-Change-Id: I3694a40d786028733310ecf5b59341282af571be Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/43211 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Rc4fadf65d59ddfb5bb924e7adfccd39e86a0b2c7
2011-11-30video: tegra: move nvhost.h to mach-tegra/include/nvhost.hGary King
Change-Id: I3bcc0a91cb379c0bd6ef382a5bf10e2406e55697 Signed-off-by: Gary King <gking@nvidia.com>
2011-11-30video: tegra: add skeleton host bus supportErik Gilling
The host (or host1x) bus sits between the cpu core and the 3d, 2d, camera, display, and mpeg encoder functions. It contains provides DMA channels, hardware mutexes, and synchronization points. Signed-off-by: Erik Gilling <konkers@android.com>
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