drm/radeon/kms: add support for per-ring fence interrupts

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 26d066442934..30562622b94a 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1006,6 +1006,15 @@ void cayman_pcie_gart_fini(struct radeon_device *rdev)
         radeon_gart_fini(rdev);
 }
 
+void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
+                              int ring, u32 cp_int_cntl)
+{
+        u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
+
+        WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
+        WREG32(CP_INT_CNTL, cp_int_cntl);
+}
+
 /*
  * CP.
  */