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authorArindam Nath <arindam.nath@amd.com>2020-02-05 21:24:23 +0530
committerJon Mason <jdmason@kudzu.us>2020-03-13 10:04:20 -0400
commit2465b87ce36ea2dbd97e5fb58a0efd284c9f687e (patch)
tree5e03632ca5569e3fb273f320cd3a7ffd43a4aee7 /drivers/ntb
parent5cafa48502c833fa175d2d16a26d1b4e0702aa74 (diff)
downloadlinux-2465b87ce36ea2dbd97e5fb58a0efd284c9f687e.tar.bz2
NTB: set peer_sta within event handler itself
amd_ack_smu() should only set the corresponding bits into SMUACK register. Setting the bitmask of peer_sta should be done within the event handler. They are two different things, and so should be handled differently and at different places. Signed-off-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
-rw-r--r--drivers/ntb/hw/amd/ntb_hw_amd.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index 84723420d70b..b85af150f2c6 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -541,8 +541,6 @@ static void amd_ack_smu(struct amd_ntb_dev *ndev, u32 bit)
reg = readl(mmio + AMD_SMUACK_OFFSET);
reg |= bit;
writel(reg, mmio + AMD_SMUACK_OFFSET);
-
- ndev->peer_sta |= bit;
}
static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
@@ -560,9 +558,11 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
status &= AMD_EVENT_INTMASK;
switch (status) {
case AMD_PEER_FLUSH_EVENT:
+ ndev->peer_sta |= AMD_PEER_FLUSH_EVENT;
dev_info(dev, "Flush is done.\n");
break;
case AMD_PEER_RESET_EVENT:
+ ndev->peer_sta |= AMD_PEER_RESET_EVENT;
amd_ack_smu(ndev, AMD_PEER_RESET_EVENT);
/* link down first */
@@ -575,6 +575,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
case AMD_PEER_PMETO_EVENT:
case AMD_LINK_UP_EVENT:
case AMD_LINK_DOWN_EVENT:
+ ndev->peer_sta |= status;
amd_ack_smu(ndev, status);
/* link down */
@@ -588,6 +589,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
if (status & 0x1)
dev_info(dev, "Wakeup is done.\n");
+ ndev->peer_sta |= AMD_PEER_D0_EVENT;
amd_ack_smu(ndev, AMD_PEER_D0_EVENT);
/* start a timer to poll link status */