[PATCH 2/2] drm/amdgpu/gfx9: put queue resets behind a debug option

[Alex Deucher]

Pending extended validation.

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 4 ++++
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c             | 4 ++++
 drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c           | 6 ++++++
 3 files changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
index c63528a4e8941..1254a43ec96b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
@@ -1151,6 +1151,10 @@ uint64_t kgd_gfx_v9_hqd_get_pq_addr(struct amdgpu_device 
*adev,
        uint32_t low, high;
        uint64_t queue_addr = 0;
 
+       if (!adev->debug_exp_resets &&
+           !adev->gfx.num_gfx_rings)
+               return 0;
+
        kgd_gfx_v9_acquire_queue(adev, pipe_id, queue_id, inst);
        amdgpu_gfx_rlc_enter_safe_mode(adev, inst);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 21089aadbb7b4..8cf5d7925b51c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -7233,6 +7233,10 @@ static int gfx_v9_0_reset_kcq(struct amdgpu_ring *ring,
        unsigned long flags;
        int i, r;
 
+       if (!adev->debug_exp_resets &&
+           !adev->gfx.num_gfx_rings)
+               return -EINVAL;
+
        if (amdgpu_sriov_vf(adev))
                return -EINVAL;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
index 2067f26d3a9d8..f8649546b9c4c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -3052,6 +3052,9 @@ static void gfx_v9_4_3_ring_soft_recovery(struct 
amdgpu_ring *ring,
        struct amdgpu_device *adev = ring->adev;
        uint32_t value = 0;
 
+       if (!adev->debug_exp_resets)
+               return;
+
        value = REG_SET_FIELD(value, SQ_CMD, CMD, 0x03);
        value = REG_SET_FIELD(value, SQ_CMD, MODE, 0x01);
        value = REG_SET_FIELD(value, SQ_CMD, CHECK_VMID, 1);
@@ -3475,6 +3478,9 @@ static int gfx_v9_4_3_reset_kcq(struct amdgpu_ring *ring,
        unsigned long flags;
        int r, i;
 
+       if (!adev->debug_exp_resets)
+               return -EINVAL;
+
        if (amdgpu_sriov_vf(adev))
                return -EINVAL;
 
-- 
2.46.0