Needed for vm_flush unification.
v2: handle compute rings as well
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index e29c22a72764..fbce0c0fdb14 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -3290,6 +3290,19 @@ static void gfx_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
}
}
+static void gfx_v7_0_ring_emit_wreg(struct amdgpu_ring *ring,
+ uint32_t reg, uint32_t val)
+{
+ int usepfp = (ring->funcs->type == AMDGPU_RING_TYPE_GFX);
+
+ amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
+ amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
+ WRITE_DATA_DST_SEL(0)));
+ amdgpu_ring_write(ring, reg);
+ amdgpu_ring_write(ring, 0);
+ amdgpu_ring_write(ring, val);
+}
+
/*
* RLC
* The RLC is a multi-purpose microengine that handles a
@@ -5134,6 +5147,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = {
.insert_nop = amdgpu_ring_insert_nop,
.pad_ib = amdgpu_ring_generic_pad_ib,
.emit_cntxcntl = gfx_v7_ring_emit_cntxcntl,
+ .emit_wreg = gfx_v7_0_ring_emit_wreg,
};
static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
@@ -5163,6 +5177,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
.test_ib = gfx_v7_0_ring_test_ib,
.insert_nop = amdgpu_ring_insert_nop,
.pad_ib = amdgpu_ring_generic_pad_ib,
+ .emit_wreg = gfx_v7_0_ring_emit_wreg,
};
static void gfx_v7_0_set_ring_funcs(struct amdgpu_device *adev)
--
2.14.1
