Add ring reset callback for compute.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 38 +++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 675a1a8e2515..78495df29b5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -7100,6 +7100,43 @@ static void gfx_v9_0_emit_wave_limit(struct amdgpu_ring *ring, bool enable)
}
}
+static int gfx_v9_0_reset_kcq(struct amdgpu_ring *ring,
+ unsigned int vmid)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_kiq *kiq = &adev->gfx.kiq[0];
+ struct amdgpu_ring *kiq_ring = &kiq->ring;
+ unsigned long flags;
+ int r;
+
+ if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
+ return -EINVAL;
+
+ spin_lock_irqsave(&kiq->ring_lock, flags);
+
+ if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size)) {
+ spin_unlock_irqrestore(&kiq->ring_lock, flags);
+ return -ENOMEM;
+ }
+
+ kiq->pmf->kiq_unmap_queues(kiq_ring, ring, RESET_QUEUES,
+ 0, 0);
+ amdgpu_ring_commit(kiq_ring);
+
+ spin_unlock_irqrestore(&kiq->ring_lock, flags);
+
+ r = amdgpu_ring_test_ring(kiq_ring);
+ 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_v9_ip_print(void *handle, struct drm_printer *p)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -7346,6 +7383,7 @@ static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_compute = {
.soft_recovery = gfx_v9_0_ring_soft_recovery,
.emit_mem_sync = gfx_v9_0_emit_mem_sync,
.emit_wave_limit = gfx_v9_0_emit_wave_limit,
+ .reset = gfx_v9_0_reset_kcq,
};
static const struct amdgpu_ring_funcs gfx_v9_0_ring_funcs_kiq = {
--
2.45.2
