Add headless check function for NV and afterwards.
Signed-off-by: Feifei Xu <Feifei.Xu@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 ++++++++
drivers/gpu/drm/amd/amdgpu/nv.c | 2 +-
drivers/gpu/drm/amd/amdgpu/nv.h | 1 +
4 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 7e1f66120c50..5a4c6405e0d8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1292,6 +1292,7 @@ bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,
struct amdgpu_device *peer_adev);
int amdgpu_device_baco_enter(struct drm_device *dev);
int amdgpu_device_baco_exit(struct drm_device *dev);
+bool amdgpu_device_is_headless(struct amdgpu_device *adev);
/* atpx handler */
#if defined(CONFIG_VGA_SWITCHEROO)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 49ca317718dd..4074de941d2d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5328,4 +5328,12 @@ bool amdgpu_device_load_pci_state(struct pci_dev *pdev)
return true;
}
+bool amdgpu_device_is_headless(struct amdgpu_device *adev)
+{
+ /* If the pcie subclass is not VGA, it is headless */
+ if ((adev->pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ return true;
+ /* If NV's subclass is VGA while VCN is harvest,it is headless*/
+ return nv_is_headless_sku(adev->pdev);
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index 5846eac292c3..1e40e36ab038 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -696,7 +696,7 @@ void nv_set_virt_ops(struct amdgpu_device *adev)
adev->virt.ops = &xgpu_nv_virt_ops;
}
-static bool nv_is_headless_sku(struct pci_dev *pdev)
+bool nv_is_headless_sku(struct pci_dev *pdev)
{
if ((pdev->device == 0x731E &&
(pdev->revision == 0xC6 || pdev->revision == 0xC7)) ||
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.h b/drivers/gpu/drm/amd/amdgpu/nv.h
index 515d67bf249f..450619fe677e 100644
--- a/drivers/gpu/drm/amd/amdgpu/nv.h
+++ b/drivers/gpu/drm/amd/amdgpu/nv.h
@@ -36,4 +36,5 @@ int navi12_reg_base_init(struct amdgpu_device *adev);
int sienna_cichlid_reg_base_init(struct amdgpu_device *adev);
void vangogh_reg_base_init(struct amdgpu_device *adev);
int dimgrey_cavefish_reg_base_init(struct amdgpu_device *adev);
+bool nv_is_headless_sku(struct pci_dev *pdev);
#endif
--
2.25.1
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