summaryrefslogtreecommitdiff
path: root/drivers/video/tegra/host/nvhost_channel.c
AgeCommit message (Collapse)Author
2012-05-29video: tegra: host: Throttle lower priority jobsTerje Bergstrom
Implement per channel counter for jobs in each priority level. If there are jobs active with higher priority than the one being submitted, throttle. Bug 926690 Change-Id: I5fed341e3f248325873b31d1c53bf57bf0a78074 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/104939 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@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>
2012-05-17video: tegra: host: remove nvhost_channel from nvhost_masterMayuresh Kulkarni
- nvhost_master holds a reference to all the channels for a chip architecture - however, nvhost_master is a private data of host1x hardware device. so it should contain only members needed by host1x hardware device - add chip specific apis to allocate and free channels - this will also help to remove the static binding between nvhost_device and a channel per SoC in future Bug 871237 Change-Id: I2148db57b995b4cb60954ebb6e670f588552eca4 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/91687 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
2012-05-11video: tegra: host: move chip_support out of nvhost_masterMayuresh Kulkarni
- currently, nvhost_master holds the reference to struct chip_support - the struct chip_support hides the chip specific implementation for channel submit, cdma, push buffer operations etc. so it exposed all the internal structures through nvhost_master - move chip_support to be a part of nvhost_bus since it only has function pointers to chip specific api implementations - nvhost_master is host1x device specific private data so ideally it should not hold reference to chip specifics Bug 871237 Change-Id: I4f3f48ee5fc47a90288d110ea8eef905150275a0 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/94421 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> GVS: Gerrit_Virtual_Submit
2012-05-04video: tegra: host: Clean up includesTerje Bergstrom
Clean up #includes. Replace #includes with forward declarations where possible, and remove extraneous #includes. Bug 871237 Change-Id: I6942e0c632b42ad7009589ebdd78def88ae4baa4 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/99046 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>
2012-04-10video: tegra: host: move resources to devicesMayuresh Kulkarni
- as of now the resources needed by all the host1x modules are part of resource list of host1x device - now that each module is a nvhost_device of its own, so it should hold the resources it needs instead of host1x device holding it for them - each device that needs its resources gets it in its _probe() using a helper API in bus_client.c Bug 871237 Change-Id: Ia7c63fcf40cbc5db76d4d8339294a0e9ce75e352 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/94166 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2012-04-03video: tegra: host: api clean-upMayuresh Kulkarni
- remove redundant 2nd argument to nvhost_module_suspend() - also remove the debug_not_idle() as it redundant after refactor of host1x code - debug_not_idle() iterates through host1x's private instance of channels to find out which client module is active (along with host1x itself). we are going to remove these instances of channels from host1x's device private data - reduce the prints during suspend Bug 871237 Change-Id: I66c7c4d8f35c157b1626784a6a27166442a50557 Signed-off-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-on: http://git-master/r/92550 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom <tbergstrom@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>
2012-03-15video: tegra: host: Replace license informationTerje Bergstrom
Replace license information in nvhost with GPLv2. Also adds copyright year 2012 in files which have been changed in 2012. Change-Id: I86e8ed27095df13d99e0250e57e244d531fdacec Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/89735 Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@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
2012-01-12video: 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>
2011-12-21video: tegra: host: Use nvhost_job for tracking submitTerje Bergstrom
When a submit arrive in kernel, package it as a new data type nvhost_job and use that for submitting to channel. That data type is used for tracking the state of the job through its lifetime. Change-Id: I0cfdb1721cc6c08efbd215917f5f46fdb7131ca0 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/67682 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2011-12-15video: tegra: host: Prevent suspend if module is busyTerje Bergstrom
MPE is kept artificially busy if a channel is open. This is done to prevent power management during an encoding process. This patch prevents system suspend if any module is busy. Bug 911477 Change-Id: I943a7e29e473ac33e680281fcdce74618567facb Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/69457 Reviewed-by: Rohan Somvanshi <rsomvanshi@nvidia.com> Tested-by: Rohan Somvanshi <rsomvanshi@nvidia.com>
2011-12-15video: tegra: host: Write cmdbufs after relocsTerje Bergstrom
Write cmdbuf stream to ftrace after the relocations have been done. This way we can get the actual addresses referred to in the stream. Change-Id: I7917abda19696198086f051e995288317491aacf Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/67096 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
2011-12-15video: tegra: host: Fix race in suspend/resumeTerje Bergstrom
Implement proper mutex locking for nvhost_module_suspend(). At the same time the ordering of suspend is changed to first suspend clients and then host1x. This simplifies the power management code, and makes nvhost_resume() a no-op. Bug 906607 Change-Id: I60048773944369f73094140fb16682638966c731 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/68084 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com>
2011-11-30video: tegra: host: Add timeout to low-pri throttleTerje Bergstrom
Add timeout to throttling low-priority thread. Low priority threads are allowed to push work either when push buffer is empty, or when they've waited for a pre-defined period. Setting the period to 50ms for now. Bug 864407 Reviewed-on: http://git-master/r/58330 (cherry picked from commit a9469db8c4c04fa7cd8f080bafdca26d99a3018c) Change-Id: I5fa310acf6cf5563eda6b7343ad82679f76162af Reviewed-on: http://git-master/r/61734 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com> Rebase-Id: R587f052c75a23b1a5a2349d4bf0feecc49cad898
2011-11-30nvhost: Throttle low-priority tasksTerje Bergstrom
Add interface for setting priority of a channel. When the priority is low, wait for channel to become empty before submitting it. Bug 864407 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/57237 (cherry picked from commit 75228616ee2c3073e391c529aecb3f82be3fc5a4) Change-Id: I2f346918ae15427b826a2ec0c28bee6bc72dc859 Reviewed-on: http://git-master/r/59595 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Rfb9ae7e88bec3a0c1e8f51f49f3e6f473d853b21
2011-11-30video: tegra: host: Separate clk and power gatingTerje Bergstrom
Separate clock and power gating from each other. There are now two timeout values related to power management: * clockgate_delay: how long to wait before clock gating * powergate_delay: when to save context and power gate If the module does not support power gating, that state is not used. System suspend also explicitly power gates all channels before suspending host1x. Bug 875675 Change-Id: Id27f0fca7914ca2a135b27f623cb67af8a94a0ef Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> (cherry picked from commit eda8a5ccc474bc60d76e241f292573a8b6f30ab6) Reviewed-on: http://git-master/r/59077 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Ra935e74f68b3d56479be1105e9858f2248ef6cd6
2011-11-30nvhost: Wait for CDMA to end before freeing channelTerje Bergstrom
Wait for CDMA to become idle before freeing resources associated with a channel. Bug 877665 Change-Id: I1a25f98ba8620202d349a4c6af38fa0e20839751 Reviewed-on: http://git-master/r/56653 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Gerrit_Virtual_Submit Tested-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com> Reviewed-by: Antti Miettinen <amiettinen@nvidia.com> Reviewed-by: Hiroshi Doyu <hdoyu@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Rebase-Id: R6a00d31d4bd91f7875671af8b183a2ceac1fc242
2011-11-30nvhost: Modularize ACM codeTerje Bergstrom
Refactor nvhost_acm.c so that module specific code can be separated from generic code: * Module clock and power op descriptions added to channelmap table * New module busy/idle interface added * 3D clock scaling for Tegra3 moved behind the module busy/idle API * 3D power off code moved to 3dctx where it belongs * Module power on API removed as there were no users * Get/Set rate moved to Tegra3 specific file Bug 870791 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/51275 Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com> (cherry-picked from ebea06768d9c9d351a7d1c8dc6499c97f2f5002d) Change-Id: I5857c7db4bbf936a694239a4a3493f2cb95426a1 Reviewed-on: http://git-master/r/56268 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Reaccd277c8f4fe12a4f7453cc4e787334122a3b8
2011-11-30video: tegra: host: fix checkpatch.pl issuesKen Adams
The only warnings left are one for "./nvhost_cdma.c: 609: WARNING: consider using a completion" and all "over 80 char line" warnings. Change-Id: I5aa113dac1deb60570c326976baba96386b041ec Reviewed-on: http://git-master/r/53842 Reviewed-by: Ken Adams <kadams@nvidia.com> Tested-by: Ken Adams <kadams@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Jeff Smith <jsmith@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com> Rebase-Id: R83200f349310910a04705d0f7a94d8163e0666fe
2011-11-30video: tegra: nvhost: add submit timeout supportChris Johnson
In this change, nvhost_cdma starts a timer (if a timeout is specified in the userctx), for the buffer at the head of the sync_queue that has not reached its syncpt threshold. If the timeout fires, nvhost_cdma initiates a channel / module reset. It then detects up to where in the sync_queue it stopped execution (based on the current HW syncpt value). For any remaining uncompleted buffers in the context, nvhost_cdma NOPs the entry and CPU incrs the syncpt to where it should be had it completed. If one of the sync_queue entries belongs to another context, it still does the syncpt incrs for this context, but via the PB as a GATHER opcode, At the end, CDMA is restarted, so buffers are refetched (either with NOP slots, or GATHERs to incr syncpts). This appears as though the buffer has completed (and the associated resources released). For testing, debugfs entries have been added under /d/tegra_nvhost force_timeout_val - set the timeout value, in ms force_timeout_channel - channel ID, were timeouts checks occur force_timeout_pid - process ID to set the userctx The idea is to set the timeout_val, then the timeout_channel (e.g. for 3D, the channel ID is 1) and then the process ID, gotten from running adb shell ps. Bug 625545 Original-Change-Id: I659e9255f1105f3439ce23e9169a19739b83ea52 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/42655 Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: R89759c129e2db8f7dbf83a6066fc29947f95cc27
2011-11-30video: tegra: refactor for multiple chip supportKen Adams
Original-Change-Id: Ia203886a3b013612b4159393ff43a25a313d1ece Reviewed-on: http://git-master/r/35911 Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Tested-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: R01b763362c13e09111f60700c3d3a7d2a9a3fc1c
2011-11-30nvhost: Enable MPE powergating, except when open.Terje Bergstrom
Enable MPE power gating, but keep it powered on when userspace has a channel open. Bug 809847 Change-Id: I30a297c079c0911fdaf9de528e3d5bf4a7cc1d72 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/32179 Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Niket Sirsi <nsirsi@nvidia.com> Tested-by: Niket Sirsi <nsirsi@nvidia.com> Rebase-Id: R2c0b0d6a38011c08181c95886ac5df1c822c6a33
2011-11-30nvrm: move stale wait checking into the kernelChris Johnson
The kernel now receives wait tracking data (similar to gathers and relocs) and compares the current syncpt with the threshold value. If it's old, it gets a kernel mapping and rewrites the method data to use a kernel reserved syncpt that is always 0 (so trivially pops when seen by the HW). Bug 519650 Bug 785525 Bug 803452 The waitchk implementation is also backward compatible with older user space code that didn't supply waitchk data as part of the submit. (cherry picked from commit 4069d8e67665624ad3dceb628e572980dd57acd0) (cherry picked from commit 6e4336408588e348804a62e53386acc9abc06823) (cherry picked from commit 87a9efe751716ca741caac72b9061fdfdcec540a) (cherry picked from commit 6d8d2c454e835f7cfe34371e07dac173f3153452) Original-Change-Id: I1bf4c940fefb6e251aa8c396e92631fa3cbe32df Reviewed-on: http://git-master/r/23159 Reviewed-on: http://git-master/r/30281 Reviewed-on: http://git-master/r/32669 Reviewed-by: Niket Sirsi <nsirsi@nvidia.com> Tested-by: Niket Sirsi <nsirsi@nvidia.com> Rebase-Id: Rbad4942a103de7d64d8a6a11d4a973740c56fa8e
2011-11-30video: tegra: host: add additional syncpoint idPrayas Mohanty
For stereo camera, we need to read syncpoints from both the rear sensors which are on their own pixel parsers. Add an additional sw syncpoint for that. bug 787214 bug 786928 Original-Change-Id: I4dff7fa636ff548de44544f845a5a1ba0c402d6d Reviewed-on: http://git-master/r/30009 Tested-by: Prayas Mohanty <pmohanty@nvidia.com> Reviewed-by: Andrew Howe <ahowe@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Gary Zhang <garyz@nvidia.com> Reviewed-by: Erik M Lilliebjerg <elilliebjerg@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Rebase-Id: R927b1c2297441f9c30afdc8c623a8299340b6771
2011-11-30nvhost: Add tracing to nvhost driver.Terje Bergstrom
Creates /d/tracing/events/nvhost. Logs channel opens, closes, writes and flushes. For writes, logs number, size and address of cmdbufs and number of relocs. Original-Change-Id: I5bdadcb40c31e3f057eb8c4579b95e235d860e39 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/29770 Reviewed-by: Andrew Howe <ahowe@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com> Rebase-Id: Rbe763a4da9f5c431170301f91fa1bc4cb4ed8f0e
2011-11-30[ARM/tegra] nvhost: Tegra3 supportAndrew Howe
Adding support for Tegra3: * auto context save (without FIFO reading in interrupt) * new registers * SLI Note: currently hardcoded to Tegra3, SLIx2. Need query function. Original-Change-Id: I7daff768540ac0f0af12a655a664428a3ae55665 Reviewed-on: http://git-master/r/12564 Tested-by: Andrew Howe <ahowe@nvidia.com> Tested-by: Jussi Rasanen <jrasanen@nvidia.com> Reviewed-by: Andrew Howe <ahowe@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Original-Change-Id: I42bfa94856676bfd82b4c11cc8cf523ca2c0dbe6 Rebase-Id: R9b1f81b7a0323f87a4c13804e483383595971550
2011-11-30[ARM/tegra] nvhost: Merge NVIDIA changes into Google's nvhostAndrew Howe
Google's 2.6.36 nvhost driver branched from NVIDIA's 2.6.32 nvhost at some point before it was actually committed to 2.6.32, but the former's original commit included some fixes that were added to the latter after that. Confusing... Also Google's version has some changes that we like so they will remain, but that makes merging difficult. Anyway, this commit brings the rest of our 2.6.32 changes into 2.6.36 and cleans it up a bit. It might be nicer to break this up into a load of smaller commits but it turned out to be very difficult to do that. Original-Change-Id: I828b624b089b811d6130173e55258da8f52a5cc2 Reviewed-on: http://git-master/r/12563 Tested-by: Jussi Rasanen <jrasanen@nvidia.com> Reviewed-by: Scott Williams <scwilliams@nvidia.com> Tested-by: Wei Sun <wsun@nvidia.com> Original-Change-Id: I72fbcff16ec6df62cc7299052a84b91db252c8d1 Rebase-Id: Rb3aa29f2ecbecf889bbc6ccf7d0b26925f7b94fb
2011-11-30nvhost: Reimplement null kickoff functionality.Dan Willemsen
For each channel submit where null kickoff is requested, we don't place the user's commands in the pushbuffer. All necessary context switches, syncpoint increments and waitbase increments do happen though. Update: Add NULL_KICKOFF ioctl to use instead of FLIP, this prevents kernel ABI breakage. Bug 717235 Previous Id: I51c323729ea57993a5b52fb395ab90cb8608ee6b Previously Reviewed: http://git-master/r/5091 Original-Change-Id: I4f92db457aff6e1c3a8d454255c4b051c4663360 Reviewed-on: http://git-master/r/15882 Reviewed-by: Daniel Willemsen <dwillemsen@nvidia.com> Tested-by: Daniel Willemsen <dwillemsen@nvidia.com> Reviewed-by: Varun Colbert <vcolbert@nvidia.com> Rebase-Id: Rc79842436757d1cb1ae0622cf62e98763420ba6c
2011-11-30video: tegra: add some missing mutex locking to nvhost_cdmaPrajakta Gudadhe
Change-Id: Ie4606d9a5154090274168babc110ea2d79747c05 Signed-off-by: Erik Gilling <konkers@android.com>
2011-11-30tegra: video: host: remove cancelled actions at power downVarun Wadekar
Change-Id: I2a82ecadafacec53990db25cb456809dbffd999b Author: Alex Frid <afrid@nvidia.com> Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
2011-11-30video: tegra: host1x driverGary King
the graphics and display hardware on tegra SoCs is accessed through a command DMA front-end called host1x host driver clients place commands into memory objects called streams, and submit a stream on one of 8 channels: the assignment of streams-to-channels depends on the hardware module(s) programmed by the stream: for example, all streams which program the 3D hardware are submitted on channel 1. the host1x hardware includes two synchronization primitives to allow command streams to synchronize access to memory or to hardware engines shared across channels (e.g. the 2D blitter): sync points and module mutexes. both primitives can also be used to synchronize with the CPU. the host1x driver performs power management for all modules behind the host block: once a module is idle (i.e., the last stream which accesses it has completed, indicated by a syncpoint) and has remained idle for an extended period of time, the module's clock (and power gate island, if the module is uniquely power-gated) is disabled, and will be automatically re-enabled when a new stream is submitted for that module. includes channel debugging support originally implemented by Erik Gilling <konkers@google.com> Original Author: Antti Hatala <ahatala@nvidia.com> Signed-off-by: Gary King <gking@nvidia.com> Change-Id: Idf0ecc8e7710f3839903a9fbfbe5650990a96b2c
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-05 15:04:12 +0000