Using DMA for reads is much faster.
Signed-off-by: Niels Ole Salscheider <niels_ole@salscheider-online.de>
Signed-off by: Marek Olšák <marek.olsak@amd.com>
Fixes radeonsi emitting command streams to the kernel even when there
have been no draw calls before a flush, potentially powering up the GPU
needlessly.
Incidentally, this also cuts the runtime of piglit gpu.py in about half
on my Kaveri system, probably because an X11 client going away no longer
always results in a command stream being submitted to the kernel via
glamor.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65761
Cc: "10.1" mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
v2: This doesn't change the behavior. It only moves the tiling check
to r600_init_resource and removes the usage parameter.
Reviewed-by: Christian König <christian.koenig@amd.com>
Became apparent with the C11 thread changes. Unfortunately I didn't
have all dependencies to build the driver, and only noticed
this issue on build server.
Also set the unsynchronized flag if the whole resource was discarded
to avoid doing buffer-busy checks again.
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This adds 2 optimizations for radeonsi:
- handling of DISCARD_RANGE
- mapping an uninitialized buffer range is automatically UNSYNCHRONIZED
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christoph Brill <egore911@gmail.com>
v2: Renamed r600_buffer.c to r600_buffer_common.c. The stupid build system
doesn't allow 2 files of the same name in different directories.
