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-rw-r--r--drivers/gpu/drm/amd/powerplay/smu_v11_0.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index ae0361e225bb..aa76c2cea747 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");