José Roberto de Souza
76aad457a1
Iris doesn't make any call to intel_flush_range*() functions so all BOs
created without BO_ALLOC_COHERENT are not coherent between CPU writes
and GPU reads.
A lot of places don't set BO_ALLOC_COHERENT not even command buffers
have it.
And this incoherency is causing most of tests to fail after
the patch that extracted("iris: Calculate iris_mmap_mode using
intel_device_info_pat_entry when possible") the mmap mode from the PAT
entry.
Before that patch MTL was creating BO with a WB PAT index but then
mmaping as WC.
So to fix this for now making the default PAT entry for Iris a WC one.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25447>
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