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In order to make subsystem-wide changes easier, move the Tegra DRM
driver back into the DRM tree.
Signed-off-by: Thierry Reding <[email protected]>
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The Tegra DRM driver currently uses some infrastructure to defer the DRM
core initialization until all required devices have registered. The same
infrastructure can potentially be used by any other driver that requires
more than a single sub-device of the host1x module.
Make the infrastructure more generic and keep only the DRM specific code
in the DRM part of the driver. Eventually this will make it easy to move
the DRM driver part back to the DRM subsystem.
Signed-off-by: Thierry Reding <[email protected]>
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Expose the buffer objects, syncpoint and channel functionality in the
public public header so that drivers can use them.
Signed-off-by: Thierry Reding <[email protected]>
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This structure derives from host1x_client. DRM-specific fields are moved
from host1x_client to this structure, so that host1x_client can remain
agnostic of DRM.
Signed-off-by: Thierry Reding <[email protected]>
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In preparation to support host1x clients other than DRM, move this
header into a public location.
Signed-off-by: Thierry Reding <[email protected]>
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Other drivers use the tegra- prefix in their names, so add it to this
driver's name as well for consistency.
Signed-off-by: Thierry Reding <[email protected]>
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Rework the address table code for the host1x firewall. The previous
implementation allocated a bitfield but didn't check for a valid pointer
so it could potentially crash. Instead, embed a static bitmap within the
gr2d structure to avoid the allocation and use the Linux bitmap API to
reduce code complexity.
Don't annotate the driver's .remove() function __exit. Even if built in
the driver can be unloaded via sysfs, so .remove() needs to stick around
after initialization. Also remove the explicit initialization of the
driver's .owner field to THIS_MODULE because that's now handled by the
driver core.
Furthermore make an error message more consistent with other subdrivers,
index the syncpts array for better readability, remove a gratuituous
newline and reorder some variable declarations to make the code easier
to read.
Signed-off-by: Thierry Reding <[email protected]>
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Most of the included files are either not required or already included
by some other header file.
Signed-off-by: Thierry Reding <[email protected]>
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The structure represents a context associated with a particular process
that has opened the Tegra DRM device and requested a channel. This is a
very DRM-specific notion and has nothing to do with host1x. Rename the
structure to more clearly mark the boundaries between the two.
Signed-off-by: Thierry Reding <[email protected]>
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The host1x and Tegra DRM drivers are currently tightly coupled. Renaming
the structure marks the boundary more clearly.
Signed-off-by: Thierry Reding <[email protected]>
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client_managed field in syncpoint structure was defined as an
integer. The field holds, however, only a boolean value. This patch
modifies the type to boolean.
Signed-off-by: Arto Merilainen <[email protected]>
Acked-By: Terje Bergstrom <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Return NULL instead of 0 in host1x_bo_lookup().
Signed-off-by: Thierry Reding <[email protected]>
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Fix to return -ENOENT in the host1x_bo lookup error handling
case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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Add client driver for 2D device, and IOCTLs to pass work to host1x
channel for 2D.
Also adds functions that can be called to access sync points from
DRM.
Signed-off-by: Arto Merilainen <[email protected]>
Signed-off-by: Terje Bergstrom <[email protected]>
Reviewed-by: Thierry Reding <[email protected]>
Tested-by: Thierry Reding <[email protected]>
Tested-by: Erik Faye-Lund <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
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