From 69f9f09f169806a61c0c6b5359d0c7c9694105e3 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Tue, 12 May 2020 19:06:37 +0800
Subject: drm/amd/powerplay: ack the SMUToHost interrupt on receive V2
Git-commit: cc831b9781e871e2bde00e9ae0041152139ee304
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
There will be no further interrupt without proper ack
for current one.
V2: fix typo to really set ACK bit only
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index baf0b636e1d8..fa7aa63260a7 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1561,6 +1561,7 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
* events for SMCToHost interrupt.
*/
uint32_t ctxid = entry->src_data[0];
+ uint32_t data;
if (client_id == SOC15_IH_CLIENTID_THM) {
switch (src_id) {
@@ -1590,6 +1591,11 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
orderly_poweroff(true);
} else if (client_id == SOC15_IH_CLIENTID_MP1) {
if (src_id == 0xfe) {
+ /* ACK SMUToHost interrupt */
+ data = RREG32_SOC15(MP1, 0, mmMP1_SMN_IH_SW_INT_CTRL);
+ data = REG_SET_FIELD(data, MP1_SMN_IH_SW_INT_CTRL, INT_ACK, 1);
+ WREG32_SOC15(MP1, 0, mmMP1_SMN_IH_SW_INT_CTRL, data);
+
switch (ctxid) {
case 0x3:
dev_dbg(adev->dev, "Switched to AC mode!\n");
--
2.28.0