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| author | Victor Zhao <Victor.Zhao@amd.com> | 2021-05-06 17:30:41 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-09 15:42:10 -0400 |
| commit | 124e8b1990ac6f01bb7affb0590e322aa462c1c3 (patch) | |
| tree | 4769fb64998a54cb0f7cbcb146b2a02204470458 /drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | |
| parent | a43e2a0e11491b73e2acaa27ee74d6c3b86deac0 (diff) | |
| download | linux-124e8b1990ac6f01bb7affb0590e322aa462c1c3.tar.bz2 | |
drm/amdgpu: Extend full access wait time in guest
- Extend wait time and add retry, currently 6s * 2times
- Change timing algorithm
Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c index 9f7aac435d69..b48e68f46a5c 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c @@ -96,7 +96,11 @@ static int xgpu_nv_poll_ack(struct amdgpu_device *adev) static int xgpu_nv_poll_msg(struct amdgpu_device *adev, enum idh_event event) { - int r, timeout = NV_MAILBOX_POLL_MSG_TIMEDOUT; + int r; + uint64_t timeout, now; + + now = (uint64_t)ktime_to_ms(ktime_get()); + timeout = now + NV_MAILBOX_POLL_MSG_TIMEDOUT; do { r = xgpu_nv_mailbox_rcv_msg(adev, event); @@ -104,8 +108,8 @@ static int xgpu_nv_poll_msg(struct amdgpu_device *adev, enum idh_event event) return 0; msleep(10); - timeout -= 10; - } while (timeout > 1); + now = (uint64_t)ktime_to_ms(ktime_get()); + } while (timeout > now); return -ETIME; @@ -149,9 +153,10 @@ static void xgpu_nv_mailbox_trans_msg (struct amdgpu_device *adev, static int xgpu_nv_send_access_requests(struct amdgpu_device *adev, enum idh_request req) { - int r; + int r, retry = 1; enum idh_event event = -1; +send_request: xgpu_nv_mailbox_trans_msg(adev, req, 0, 0, 0); switch (req) { @@ -170,6 +175,9 @@ static int xgpu_nv_send_access_requests(struct amdgpu_device *adev, if (event != -1) { r = xgpu_nv_poll_msg(adev, event); if (r) { + if (retry++ < 2) + goto send_request; + if (req != IDH_REQ_GPU_INIT_DATA) { pr_err("Doesn't get msg:%d from pf, error=%d\n", event, r); return r; |