[PATCH 10/34] drm/amdgpu/gfx11: add ring reset callbacks

[Alex Deucher]

Add ring reset callbacks for gfx and compute.

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index ce5cb60b8628..56606c6dbb15 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -6520,6 +6520,22 @@ static void gfx_v11_0_emit_mem_sync(struct amdgpu_ring 
*ring)
        amdgpu_ring_write(ring, gcr_cntl); /* GCR_CNTL */
 }
 
+static int gfx_v11_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 void gfx_v11_ip_print(void *handle, struct drm_printer *p)
 {
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -6721,6 +6737,7 @@ static const struct amdgpu_ring_funcs 
gfx_v11_0_ring_funcs_gfx = {
        .emit_reg_write_reg_wait = gfx_v11_0_ring_emit_reg_write_reg_wait,
        .soft_recovery = gfx_v11_0_ring_soft_recovery,
        .emit_mem_sync = gfx_v11_0_emit_mem_sync,
+       .reset = gfx_v11_0_reset_ring,
 };
 
 static const struct amdgpu_ring_funcs gfx_v11_0_ring_funcs_compute = {
@@ -6758,6 +6775,7 @@ static const struct amdgpu_ring_funcs 
gfx_v11_0_ring_funcs_compute = {
        .emit_reg_write_reg_wait = gfx_v11_0_ring_emit_reg_write_reg_wait,
        .soft_recovery = gfx_v11_0_ring_soft_recovery,
        .emit_mem_sync = gfx_v11_0_emit_mem_sync,
+       .reset = gfx_v11_0_reset_ring,
 };
 
 static const struct amdgpu_ring_funcs gfx_v11_0_ring_funcs_kiq = {
-- 
2.45.2