drm/radeon/kms: add support for semaphores v3
They are used to sync between rings, while fences
sync between a ring and the cpu.
v2 Fix radeon_semaphore_driver_fini when no semaphore were
allocated.
v3 Initialize list early on to avoid issue in case or early
error
Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index d2dced5..2f18163 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -832,6 +832,14 @@
radeon_ring_write(rdev, RADEON_SW_INT_FIRE);
}
+void r100_semaphore_ring_emit(struct radeon_device *rdev,
+ struct radeon_semaphore *semaphore,
+ unsigned ring, bool emit_wait)
+{
+ /* Unused on older asics, since we don't have semaphores or multiple rings */
+ BUG();
+}
+
int r100_copy_blit(struct radeon_device *rdev,
uint64_t src_offset,
uint64_t dst_offset,