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authorAmber Lin <Amber.Lin@amd.com>2026-03-13 06:15:24 -0400
committerAlex Deucher <alexander.deucher@amd.com>2026-04-28 14:42:46 -0400
commit65f8a3676d12a76de62923ee5ee0248927b732c1 (patch)
tree14333bd6d4100edaedec51eff6bc318cf2b6c62b
parent5071ccf2b1c3c8b7cb3b9a2f9012b285cf5eefbf (diff)
downloadlinux-65f8a3676d12a76de62923ee5ee0248927b732c1.tar.gz
linux-65f8a3676d12a76de62923ee5ee0248927b732c1.zip
drm/amdkfd: Add detect+reset hangs to GC 12.1
Add detect_and_reset_hung_queues to user mode compute queues on GC 12.1. Signed-off-by: Amber Lin <Amber.Lin@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/mes_v12_1.c35
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
index 600d7d658826..1931562ea6b3 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_1.c
@@ -47,6 +47,8 @@ static int mes_v12_1_self_test(struct amdgpu_device *adev, int xcc_id);
static int mes_v12_1_setup_coop_mode(struct amdgpu_device *adev, int xcc_id);
#define MES_EOP_SIZE 2048
+#define MES12_HUNG_DB_OFFSET_ARRAY_SIZE 8 /* [0:3] = db offset [4:7] hqd info */
+#define MES12_HUNG_HQD_INFO_OFFSET 4
#define regCP_HQD_IB_CONTROL_MES_12_1_DEFAULT 0x100000
#define XCC_MID_MASK 0x41000000
@@ -230,7 +232,7 @@ static int mes_v12_1_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
xcc_id, pipe, x_pkt->header.opcode);
r = amdgpu_fence_wait_polling(ring, seq, timeout);
- if (r < 1 || !*status_ptr) {
+ if (r < 1 || !lower_32_bits(*status_ptr)) {
if (misc_op_str)
dev_err(adev->dev,
"MES(%d, %d) failed to respond to msg=%s (%s)\n",
@@ -877,6 +879,33 @@ static int mes_v12_1_reset_legacy_queue(struct amdgpu_mes *mes,
}
#endif
+static int mes_v12_1_detect_and_reset_hung_queues(struct amdgpu_mes *mes,
+ struct mes_detect_and_reset_queue_input *input)
+{
+ union MESAPI__RESET mes_reset_queue_pkt;
+
+ memset(&mes_reset_queue_pkt, 0, sizeof(mes_reset_queue_pkt));
+
+ mes_reset_queue_pkt.header.type = MES_API_TYPE_SCHEDULER;
+ mes_reset_queue_pkt.header.opcode = MES_SCH_API_RESET;
+ mes_reset_queue_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;
+
+ mes_reset_queue_pkt.queue_type =
+ convert_to_mes_queue_type(input->queue_type);
+ mes_reset_queue_pkt.doorbell_offset_addr =
+ mes->hung_queue_db_array_gpu_addr[0];
+
+ if (input->detect_only)
+ mes_reset_queue_pkt.hang_detect_only = 1;
+ else
+ mes_reset_queue_pkt.hang_detect_then_reset = 1;
+
+ return mes_v12_1_submit_pkt_and_poll_completion(mes,
+ input->xcc_id, AMDGPU_MES_SCHED_PIPE,
+ &mes_reset_queue_pkt, sizeof(mes_reset_queue_pkt),
+ offsetof(union MESAPI__RESET, api_status));
+}
+
static int mes_v12_inv_tlb_convert_hub_id(uint8_t id)
{
/*
@@ -934,6 +963,7 @@ static const struct amdgpu_mes_funcs mes_v12_1_funcs = {
.resume_gang = mes_v12_1_resume_gang,
.misc_op = mes_v12_1_misc_op,
.reset_hw_queue = mes_v12_1_reset_hw_queue,
+ .detect_and_reset_hung_queues = mes_v12_1_detect_and_reset_hung_queues,
.invalidate_tlbs_pasid = mes_v12_1_inv_tlbs_pasid,
};
@@ -1936,6 +1966,9 @@ static int mes_v12_1_early_init(struct amdgpu_ip_block *ip_block)
struct amdgpu_device *adev = ip_block->adev;
int pipe, r;
+ adev->mes.hung_queue_db_array_size = MES12_HUNG_DB_OFFSET_ARRAY_SIZE;
+ adev->mes.hung_queue_hqd_info_offset = MES12_HUNG_HQD_INFO_OFFSET;
+
for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
r = amdgpu_mes_init_microcode(adev, pipe);
if (r)