drm/amdgpu/gfx12: add ring reset callbacks

Add ring reset callbacks for gfx and compute.

Acked-by: Vitaly Prosyak <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: alexdeucher

drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

@@ -5158,6 +5158,22 @@ static void gfx_v12_ip_dump(void *handle)
 	amdgpu_gfx_off_ctrl(adev, true);
 }
 
+static int gfx_v12_0_reset_ring(struct amdgpu_ring *ring, unsigned int vmid)
+{
+	int r;
+
+	r = amdgpu_mes_reset_legacy_queue(ring->adev, ring, vmid);
+	if (r)
+		return r;
+
+	/* reset the ring */
+	ring->wptr = 0;
+	*ring->wptr_cpu_addr = 0;
+	amdgpu_ring_clear_ring(ring);
+
+	return amdgpu_ring_test_ring(ring);
+}
+
 static const struct amd_ip_funcs gfx_v12_0_ip_funcs = {
 	.name = "gfx_v12_0",
 	.early_init = gfx_v12_0_early_init,
@@ -5220,6 +5236,7 @@ static const struct amdgpu_ring_funcs gfx_v12_0_ring_funcs_gfx = {
 	.emit_reg_write_reg_wait = gfx_v12_0_ring_emit_reg_write_reg_wait,
 	.soft_recovery = gfx_v12_0_ring_soft_recovery,
 	.emit_mem_sync = gfx_v12_0_emit_mem_sync,
+	.reset = gfx_v12_0_reset_ring,
 };
 
 static const struct amdgpu_ring_funcs gfx_v12_0_ring_funcs_compute = {
@@ -5254,6 +5271,7 @@ static const struct amdgpu_ring_funcs gfx_v12_0_ring_funcs_compute = {
 	.emit_reg_write_reg_wait = gfx_v12_0_ring_emit_reg_write_reg_wait,
 	.soft_recovery = gfx_v12_0_ring_soft_recovery,
 	.emit_mem_sync = gfx_v12_0_emit_mem_sync,
+	.reset = gfx_v12_0_reset_ring,
 };
 
 static const struct amdgpu_ring_funcs gfx_v12_0_ring_funcs_kiq = {