Guest OS will setup VCN instance 1 which is disabled as an enabled instance and
execute initialization work on it, but this causes VCN ib ring test failure
on the disabled VCN instance during modprobe:

amdgpu 0000:00:08.0: amdgpu: ring vcn_enc_1.0 uses VM inv eng 5 on hub 1
amdgpu 0000:00:08.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed 
on vcn_dec_0 (-110).
amdgpu 0000:00:08.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed 
on vcn_enc_0.0 (-110).
[drm:amdgpu_device_delayed_init_work_handler [amdgpu]] *ERROR* ib ring test 
failed (-110).

v2: drop amdgpu_discovery_get_vcn_version and rename sriov_config to
vcn_config

Fixes: 36b7d5646476 ("drm/amdgpu: handle SRIOV VCN revision parsing")
Signed-off-by: Leslie Shi <yuliang....@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 13 +++----------
 drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h |  2 --
 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c       | 15 ++++-----------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h       |  2 +-
 4 files changed, 8 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index 552031950518..53ff1bbe8bd6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -380,6 +380,9 @@ int amdgpu_discovery_reg_base_init(struct amdgpu_device 
*adev)
                                  ip->revision);
 
                        if (le16_to_cpu(ip->hw_id) == VCN_HWID) {
+                               adev->vcn.vcn_config[adev->vcn.num_vcn_inst] =
+                                       ip->revision & 0xc0;
+
                                if (amdgpu_sriov_vf(adev)) {
                                        /* SR-IOV modifies each VCN???s 
revision (uint8)
                                         * Bit [5:0]: original revision value
@@ -388,8 +391,6 @@ int amdgpu_discovery_reg_base_init(struct amdgpu_device 
*adev)
                                         *     0b10 : encode is disabled
                                         *     0b01 : decode is disabled
                                         */
-                                       
adev->vcn.sriov_config[adev->vcn.num_vcn_inst] =
-                                               (ip->revision & 0xc0) >> 6;
                                        ip->revision &= ~0xc0;
                                }
                                adev->vcn.num_vcn_inst++;
@@ -485,14 +486,6 @@ int amdgpu_discovery_get_ip_version(struct amdgpu_device 
*adev, int hw_id, int n
        return -EINVAL;
 }
 
-
-int amdgpu_discovery_get_vcn_version(struct amdgpu_device *adev, int 
vcn_instance,
-                                    int *major, int *minor, int *revision)
-{
-       return amdgpu_discovery_get_ip_version(adev, VCN_HWID,
-                                              vcn_instance, major, minor, 
revision);
-}
-
 void amdgpu_discovery_harvest_ip(struct amdgpu_device *adev)
 {
        struct binary_header *bhdr;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
index 0ea029e3b850..14537cec19db 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h
@@ -33,8 +33,6 @@ void amdgpu_discovery_harvest_ip(struct amdgpu_device *adev);
 int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, int 
number_instance,
                                     int *major, int *minor, int *revision);
 
-int amdgpu_discovery_get_vcn_version(struct amdgpu_device *adev, int 
vcn_instance,
-                                    int *major, int *minor, int *revision);
 int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev);
 int amdgpu_discovery_set_ip_blocks(struct amdgpu_device *adev);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 2658414c503d..38036cbf6203 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -284,20 +284,13 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
 bool amdgpu_vcn_is_disabled_vcn(struct amdgpu_device *adev, enum vcn_ring_type 
type, uint32_t vcn_instance)
 {
        bool ret = false;
+       int vcn_config = adev->vcn.vcn_config[vcn_instance];
 
-       int major;
-       int minor;
-       int revision;
-
-       /* if cannot find IP data, then this VCN does not exist */
-       if (amdgpu_discovery_get_vcn_version(adev, vcn_instance, &major, 
&minor, &revision) != 0)
-               return true;
-
-       if ((type == VCN_ENCODE_RING) && (revision & 
VCN_BLOCK_ENCODE_DISABLE_MASK)) {
+       if ((type == VCN_ENCODE_RING) && (vcn_config & 
VCN_BLOCK_ENCODE_DISABLE_MASK)) {
                ret = true;
-       } else if ((type == VCN_DECODE_RING) && (revision & 
VCN_BLOCK_DECODE_DISABLE_MASK)) {
+       } else if ((type == VCN_DECODE_RING) && (vcn_config & 
VCN_BLOCK_DECODE_DISABLE_MASK)) {
                ret = true;
-       } else if ((type == VCN_UNIFIED_RING) && (revision & 
VCN_BLOCK_QUEUE_DISABLE_MASK)) {
+       } else if ((type == VCN_UNIFIED_RING) && (vcn_config & 
VCN_BLOCK_QUEUE_DISABLE_MASK)) {
                ret = true;
        }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index 938a5ead3f20..5d3728b027d3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -235,7 +235,7 @@ struct amdgpu_vcn {
 
        uint8_t num_vcn_inst;
        struct amdgpu_vcn_inst   inst[AMDGPU_MAX_VCN_INSTANCES];
-       uint8_t                  sriov_config[AMDGPU_MAX_VCN_INSTANCES];
+       uint8_t                  vcn_config[AMDGPU_MAX_VCN_INSTANCES];
        struct amdgpu_vcn_reg    internal;
        struct mutex             vcn_pg_lock;
        struct mutex            vcn1_jpeg1_workaround;
-- 
2.25.1

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