There will be no further interrupt without proper ack
for current one.
V2: fix typo to really set ACK bit only
Change-Id: Iad5adcaf7dd5c3a773b3d93ee0922a424dba8ac8
Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
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 80d6c296a599..2df3019768c2 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1535,6 +1535,7 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
*/
uint32_t ctxid = entry->src_data[0];
struct smu_context *smu = &adev->smu;
+ uint32_t data;
if (client_id == SOC15_IH_CLIENTID_THM) {
switch (src_id) {
@@ -1576,6 +1577,11 @@ 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");
--
2.26.2
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