Yeah, the src_data is unfortunately not completed (you simply can't have
all the bits of a 40bit address+flags in a 32bit dw).
But it's the best we can do, so the patch is Reviewed-by: Christian
König <[email protected]> as well.
Regards,
Christian.
Am 07.02.2017 um 08:03 schrieb Zhang, Jerry:
If that info is enough for vf.
Reviewed-by: Junwei Zhang <[email protected]>
Regards,
Jerry (Junwei Zhang)
Linux Base Graphics
SRDC Software Development
_____________________________________
-----Original Message-----
From: Pixel Ding [mailto:[email protected]]
Sent: Tuesday, February 07, 2017 14:07
To: Zhou, David(ChunMing); Koenig, Christian; Zhang, Jerry
Cc: [email protected]; Ding, Pixel
Subject: [PATCH] drm/amdgpu/virt: skip VM fault handler for VF (v2)
VF uses KIQ to access registers. When VM fault occurs, the driver can't get back
the fence of KIQ submission and runs into CPU soft lockup.
v2: print IV entry info
Signed-off-by: Pixel Ding <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 7669b32..6502508 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1237,6 +1237,13 @@ static int gmc_v8_0_process_interrupt(struct
amdgpu_device *adev, {
u32 addr, status, mc_client;
+ if (amdgpu_sriov_vf(adev)) {
+ dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
+ entry->src_id, entry->src_data);
+ dev_err(adev->dev, " Can't decode VM fault info here on SRIOV
VF\n");
+ return 0;
+ }
+
addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
mc_client =
RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
--
2.7.4
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