Disable runtime power management on several sienna cichlid
cards, otherwise SMU will possibly fail to be resumed from
runtime suspend. Will drop this after a clean solution between
kernel driver and SMU FW is available.

amdgpu 0000:63:00.0: amdgpu: GECC is enabled
amdgpu 0000:63:00.0: amdgpu: SECUREDISPLAY: securedisplay ta ucode is not 
available
amdgpu 0000:63:00.0: amdgpu: SMU is resuming...
amdgpu 0000:63:00.0: amdgpu: SMU: I'm not done with your command: 
SMN_C2PMSG_66:0x0000000E SMN_C2PMSG_82:0x00000080
amdgpu 0000:63:00.0: amdgpu: Failed to SetDriverDramAddr!
amdgpu 0000:63:00.0: amdgpu: Failed to setup smc hw!
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <smu> 
failed -62
amdgpu 0000:63:00.0: amdgpu: amdgpu_device_ip_resume failed (-62)

v2: seperate to a function.

Signed-off-by: Guchun Chen <guchun.c...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 262938f0dfdb..1bf8ff71b6b5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -43,6 +43,17 @@
 #include "amdgpu_display.h"
 #include "amdgpu_ras.h"
 
+static void amdgpu_runtime_pm_quirk(struct amdgpu_device *adev)
+{
+       /*
+        * Add below quirk on several sienna_cichlid cards to disable
+        * runtime pm to fix EMI failures.
+        */
+       if (((adev->pdev->device == 0x73A1) && (adev->pdev->revision == 0x00)) 
||
+           ((adev->pdev->device == 0x73BF) && (adev->pdev->revision == 0xCF)))
+               adev->runpm = false;
+}
+
 void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev)
 {
        struct amdgpu_gpu_instance *gpu_instance;
@@ -180,6 +191,9 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, 
unsigned long flags)
                 */
                if (adev->is_fw_fb)
                        adev->runpm = false;
+
+               amdgpu_runtime_pm_quirk(adev);
+
                if (adev->runpm)
                        dev_info(adev->dev, "Using BACO for runtime pm\n");
        }
-- 
2.17.1

Reply via email to