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3 Commits

Author SHA1 Message Date
Thomas Hellstrom fc18afcf5f drm/vmwgfx: Use a validation context allocator for relocations and validations 
A common trait of these objects are that they are allocated during the
command validation phase and freed after command submission. Furthermore
they are accessed by a single thread only. So provide a simple unprotected
stack-like allocator from which these objects can be allocated. Their
memory is freed with the validation context when the command submission
is done.

Note that the mm subsystem maintains a per-cpu cache of single pages to
make single page allocation and freeing efficient.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
 2018-09-27 15:21:36 +02:00
Thomas Hellstrom 84e1bf06bc drm/vmwgfx: Modify the resource validation interface 
Allow selecting interruptible or uninterruptible waits to match
expectations of callers.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
 2018-09-27 15:21:36 +02:00
Thomas Hellstrom 038ecc5032 drm/vmwgfx: Add a validation module v2 
Isolate the functionality needed for reservation, validation and fencing
of vmwgfx buffer objects and resources and publish an API for this.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com> #v1
 2018-09-27 15:21:35 +02:00