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authorEvan Quan <evan.quan@amd.com>2020-05-12 19:06:37 +0800
committerAlex Deucher <alexander.deucher@amd.com>2020-05-29 13:56:30 -0400
commitcc831b9781e871e2bde00e9ae0041152139ee304 (patch)
treea1e063db6a7c90011ed8e79cdc1da659ffb87501 /drivers/gpu/drm/amd
parent9271dfd9e0f79e2969dcbe28568bce0fdc4f8f73 (diff)
downloadlinux-cc831b9781e871e2bde00e9ae0041152139ee304.tar.bz2
drm/amd/powerplay: ack the SMUToHost interrupt on receive V2
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>
Diffstat (limited to 'drivers/gpu/drm/amd')
-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");