kms_frontbuffer_tracking@basic falls over if the fb needs to be migrated from non-mappable device memory, to the mappable part, due to being temporarily pinned for scanout, when hitting the CPU fault handler, which just gives us SIGBUS. If the device has a small BAR let's attempt to use the mappable portion, if possible. XXX: perhaps the kernel needs to somehow handle this better? Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> Cc: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx> --- lib/ioctl_wrappers.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c index 09eb3ce7..7713e78b 100644 --- a/lib/ioctl_wrappers.c +++ b/lib/ioctl_wrappers.c @@ -635,7 +635,8 @@ uint32_t gem_buffer_create_fb_obj(int fd, uint64_t size) uint32_t handle; if (gem_has_lmem(fd)) - handle = gem_create_in_memory_regions(fd, size, REGION_LMEM(0)); + handle = gem_create_with_cpu_access_in_memory_regions(fd, size, + REGION_LMEM(0)); else handle = gem_create(fd, size); -- 2.34.1
