[PATCH] drm/amdgpu: Enable doorbell selfring if resize BAR successfully

[Shane Xiao]

[Why]
The selfring doorbell aperture will change when we resize
FB BAR successfully during gmc sw init, we should reorder
the sequence of enabling doorbell selfring aperture.

[How]
Move enable_doorbell_selfring_aperture from *_common_hw_init
to *_common_late_init.

This fixes the potential issue that GPU ring its own
doorbell when this device is in translated mode with
iommu is on.

Signed-off-by: Shane Xiao <shane.x...@amd.com>
Signed-off-by: Aaron Liu <aaron....@amd.com>
Tested-by: Xiaomeng Hou <xiaomeng....@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/nv.c    | 4 +++-
 drivers/gpu/drm/amd/amdgpu/soc15.c | 4 +++-
 drivers/gpu/drm/amd/amdgpu/soc21.c | 4 +++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 47420b403871..f4c85634a4c8 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -535,7 +535,8 @@ static void nv_enable_doorbell_aperture(struct 
amdgpu_device *adev,
                                        bool enable)
 {
        adev->nbio.funcs->enable_doorbell_aperture(adev, enable);
-       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
+       if (!enable)
+               adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, 
false);
 }
 
 const struct amdgpu_ip_block_version nv_common_ip_block =
@@ -999,6 +1000,7 @@ static int nv_common_late_init(void *handle)
                }
        }
 
+       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, true);
        return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c 
b/drivers/gpu/drm/amd/amdgpu/soc15.c
index bc5dd80f10c1..0202de79a389 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -623,7 +623,8 @@ static void soc15_enable_doorbell_aperture(struct 
amdgpu_device *adev,
                                           bool enable)
 {
        adev->nbio.funcs->enable_doorbell_aperture(adev, enable);
-       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
+       if (!enable)
+               adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, 
false);
 }
 
 const struct amdgpu_ip_block_version vega10_common_ip_block =
@@ -1125,6 +1126,7 @@ static int soc15_common_late_init(void *handle)
        if (amdgpu_sriov_vf(adev))
                xgpu_ai_mailbox_get_irq(adev);
 
+       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, true);
        return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c 
b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 514bfc705d5a..cd4619085d67 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -454,7 +454,8 @@ static void soc21_enable_doorbell_aperture(struct 
amdgpu_device *adev,
                                        bool enable)
 {
        adev->nbio.funcs->enable_doorbell_aperture(adev, enable);
-       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable);
+       if (!enable)
+               adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, 
false);
 }
 
 const struct amdgpu_ip_block_version soc21_common_ip_block =
@@ -764,6 +765,7 @@ static int soc21_common_late_init(void *handle)
                        amdgpu_irq_get(adev, 
&adev->nbio.ras_err_event_athub_irq, 0);
        }
 
+       adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, true);
        return 0;
 }
 
-- 
2.25.1