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drm/amdgpu: trigger flr_work if reading pf2vf data failed

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if reading pf2vf data failed 30 times continuously, it means something is
wrong. Need to trigger flr_work to recover the issue.

also use dev_err to print the error message to get which device has
issue and add warning message if waiting IDH_FLR_NOTIFICATION_CMPL
timeout.

Signed-off-by: Zhigang Luo <Zhigang.Luo@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhigang Luo
2024-02-29 16:04:35 -05:00
committed by Alex Deucher
parent dc5c3d48e9
commit ab66c83284
5 changed files with 41 additions and 10 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
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@@ -52,6 +52,8 @@
/* tonga/fiji use this offset */
#define mmBIF_IOV_FUNC_IDENTIFIER 0x1503
#define AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT 30
enum amdgpu_sriov_vf_mode {
SRIOV_VF_MODE_BARE_METAL = 0,
SRIOV_VF_MODE_ONE_VF,
@@ -257,6 +259,7 @@ struct amdgpu_virt {
/* vf2pf message */
struct delayed_work vf2pf_work;
uint32_t vf2pf_update_interval_ms;
int vf2pf_update_retry_cnt;
/* multimedia bandwidth config */
bool is_mm_bw_enabled;