diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ntb/hw/amd/ntb_hw_amd.c | 9 | ||||
| -rw-r--r-- | drivers/ntb/hw/amd/ntb_hw_amd.h | 5 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index 6ccba0d862df..b33f13b5b69d 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -199,6 +199,11 @@ static int amd_link_is_up(struct amd_ntb_dev *ndev) if (!ndev->peer_sta) return NTB_LNK_STA_ACTIVE(ndev->cntl_sta); + if (ndev->peer_sta & AMD_LINK_UP_EVENT) { + ndev->peer_sta = 0; + return 1; + } + /* If peer_sta is reset or D0 event, the ISR has * started a timer to check link status of hardware. * So here just clear status bit. And if peer_sta is @@ -207,7 +212,7 @@ static int amd_link_is_up(struct amd_ntb_dev *ndev) */ if (ndev->peer_sta & AMD_PEER_RESET_EVENT) ndev->peer_sta &= ~AMD_PEER_RESET_EVENT; - else if (ndev->peer_sta & AMD_PEER_D0_EVENT) + else if (ndev->peer_sta & (AMD_PEER_D0_EVENT | AMD_LINK_DOWN_EVENT)) ndev->peer_sta = 0; return 0; @@ -491,6 +496,8 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) break; case AMD_PEER_D3_EVENT: case AMD_PEER_PMETO_EVENT: + case AMD_LINK_UP_EVENT: + case AMD_LINK_DOWN_EVENT: amd_ack_smu(ndev, status); /* link down */ diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.h b/drivers/ntb/hw/amd/ntb_hw_amd.h index 2eac3cd3e646..13d73ed94a52 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.h +++ b/drivers/ntb/hw/amd/ntb_hw_amd.h @@ -148,9 +148,12 @@ enum { AMD_PEER_D3_EVENT = BIT(2), AMD_PEER_PMETO_EVENT = BIT(3), AMD_PEER_D0_EVENT = BIT(4), + AMD_LINK_UP_EVENT = BIT(5), + AMD_LINK_DOWN_EVENT = BIT(6), AMD_EVENT_INTMASK = (AMD_PEER_FLUSH_EVENT | AMD_PEER_RESET_EVENT | AMD_PEER_D3_EVENT | - AMD_PEER_PMETO_EVENT | AMD_PEER_D0_EVENT), + AMD_PEER_PMETO_EVENT | AMD_PEER_D0_EVENT | + AMD_LINK_UP_EVENT | AMD_LINK_DOWN_EVENT), AMD_PMESTAT_OFFSET = 0x480, AMD_PMSGTRIG_OFFSET = 0x490, |