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- 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>
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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>
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- 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>
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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>
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- 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>
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- 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>
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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>
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- 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>
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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
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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
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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>
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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
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Change-Id: I3bcc0a91cb379c0bd6ef382a5bf10e2406e55697
Signed-off-by: Gary King <gking@nvidia.com>
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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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