drm/amdgpu: fix for suspend/resume sequence under sriov

- clear kiq ring after suspend/resume under sriov to aviod kiq ring
test failure
- update irq after resume to fix kiq interrput loss

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 522820e..5b9f992 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4197,6 +4197,8 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
        }
 
        /* Make sure IB tests flushed */
+       if (amdgpu_sriov_vf(adev))
+               amdgpu_irq_gpu_reset_resume_helper(adev);
        flush_delayed_work(&adev->delayed_init_work);
 
        if (adev->in_s0ix) {

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 7853d3c..49d34c7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -6909,6 +6909,8 @@ static int gfx_v10_0_kiq_init_queue(struct amdgpu_ring *ring)
                mutex_unlock(&adev->srbm_mutex);
        } else {
                memset((void *)mqd, 0, sizeof(*mqd));
+               if (amdgpu_sriov_vf(adev) && adev->in_suspend)
+                       amdgpu_ring_clear_ring(ring);
                mutex_lock(&adev->srbm_mutex);
                nv_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
                amdgpu_ring_init_mqd(ring);

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 96b9054..9447999 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4004,6 +4004,8 @@ static int gfx_v11_0_kiq_init_queue(struct amdgpu_ring *ring)
                mutex_unlock(&adev->srbm_mutex);
        } else {
                memset((void *)mqd, 0, sizeof(*mqd));
+               if (amdgpu_sriov_vf(adev) && adev->in_suspend)
+                       amdgpu_ring_clear_ring(ring);
                mutex_lock(&adev->srbm_mutex);
                soc21_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
                amdgpu_ring_init_mqd(ring);

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 7f0b18b..d471356 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4643,6 +4643,8 @@ static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring)
                memset((void *)mqd, 0, sizeof(struct vi_mqd_allocation));
                ((struct vi_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
                ((struct vi_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
+               if (amdgpu_sriov_vf(adev) && adev->in_suspend)
+                       amdgpu_ring_clear_ring(ring);
                mutex_lock(&adev->srbm_mutex);
                vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
                gfx_v8_0_mqd_init(ring);

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index ab30c18..676832d 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3581,6 +3581,8 @@ static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
                memset((void *)mqd, 0, sizeof(struct v9_mqd_allocation));
                ((struct v9_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
                ((struct v9_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
+               if (amdgpu_sriov_vf(adev) && adev->in_suspend)
+                       amdgpu_ring_clear_ring(ring);
                mutex_lock(&adev->srbm_mutex);
                soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
                gfx_v9_0_mqd_init(ring);