[PATCH 6/7] drm/amdgpu/soc15: add PCI reset support

[Alex Deucher]

Use generic PCI reset for GPU reset if the user specifies
PCI reset as the reset mechanism.  This should in general
only be used for validation.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/soc15.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 5ef2e2707754..c7d0e0e98391 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -709,7 +709,8 @@ soc15_asic_reset_method(struct amdgpu_device *adev)
 
 	if (amdgpu_reset_method == AMD_RESET_METHOD_MODE1 ||
 	    amdgpu_reset_method == AMD_RESET_METHOD_MODE2 ||
-		amdgpu_reset_method == AMD_RESET_METHOD_BACO)
+	    amdgpu_reset_method == AMD_RESET_METHOD_BACO ||
+	    amdgpu_reset_method == AMD_RESET_METHOD_PCI)
 		return amdgpu_reset_method;
 
 	if (amdgpu_reset_method != -1)
@@ -754,15 +755,18 @@ static int soc15_asic_reset(struct amdgpu_device *adev)
 		return 0;
 
 	switch (soc15_asic_reset_method(adev)) {
-		case AMD_RESET_METHOD_BACO:
-			dev_info(adev->dev, "BACO reset\n");
-			return soc15_asic_baco_reset(adev);
-		case AMD_RESET_METHOD_MODE2:
-			dev_info(adev->dev, "MODE2 reset\n");
-			return amdgpu_dpm_mode2_reset(adev);
-		default:
-			dev_info(adev->dev, "MODE1 reset\n");
-			return soc15_asic_mode1_reset(adev);
+	case AMD_RESET_METHOD_PCI:
+		dev_info(adev->dev, "PCI reset\n");
+		return amdgpu_device_pci_reset(adev);
+	case AMD_RESET_METHOD_BACO:
+		dev_info(adev->dev, "BACO reset\n");
+		return soc15_asic_baco_reset(adev);
+	case AMD_RESET_METHOD_MODE2:
+		dev_info(adev->dev, "MODE2 reset\n");
+		return amdgpu_dpm_mode2_reset(adev);
+	default:
+		dev_info(adev->dev, "MODE1 reset\n");
+		return soc15_asic_mode1_reset(adev);
 	}
 }
 
-- 
2.29.2