Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: cleanup MES12 command submission

Browse Source 
The approach of having a separate WB slot for each submission doesn't
really work well and for example breaks GPU reset.

Use a status query packet for the fence update instead since those
should always succeed we can use the fence of the original packet to
signal the state of the operation.

While at it cleanup the coding style.

Fixes: ade887c633 ("drm/amdgpu/mes12: Use a separate fence per transaction")
Reviewed-by: Mukul Joshi <mukul.joshi@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2024-06-03 16:54:18 -04:00
parent 3af2c80ae2
commit fffe347e14
1 changed files with 48 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
View File

@ -144,18 +144,18 @@ static int mes_v12_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
void *pkt, int size,
int api_status_off)
{
int ndw = size / 4;
signed long r;
union MESAPI__MISC *x_pkt = pkt;
struct MES_API_STATUS *api_status;
union MESAPI__QUERY_MES_STATUS mes_status_pkt;
signed long timeout = 3000000; /* 3000 ms */
struct amdgpu_device *adev = mes->adev;
struct amdgpu_ring *ring = &mes->ring;
unsigned long flags;
struct MES_API_STATUS *api_status;
union MESAPI__MISC *x_pkt = pkt;
const char *op_str, *misc_op_str;
signed long timeout = 3000000; /* 3000 ms */
u32 fence_offset;
u64 fence_gpu_addr;
u64 *fence_ptr;
unsigned long flags;
u64 status_gpu_addr;
u32 status_offset;
u64 *status_ptr;
signed long r;
int ret;
if (x_pkt->header.opcode >= MES_SCH_API_MAX)
@ -167,28 +167,38 @@ static int mes_v12_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
/* Worst case in sriov where all other 15 VF timeout, each VF needs about 600ms */
timeout = 15 * 600 * 1000;
}
BUG_ON(size % 4 != 0);
ret = amdgpu_device_wb_get(adev, &fence_offset);
ret = amdgpu_device_wb_get(adev, &status_offset);
if (ret)
return ret;
fence_gpu_addr =
adev->wb.gpu_addr + (fence_offset * 4);
fence_ptr = (u64 *)&adev->wb.wb[fence_offset];
*fence_ptr = 0;
status_gpu_addr = adev->wb.gpu_addr + (status_offset * 4);
status_ptr = (u64 *)&adev->wb.wb[status_offset];
*status_ptr = 0;
spin_lock_irqsave(&mes->ring_lock, flags);
if (amdgpu_ring_alloc(ring, ndw)) {
spin_unlock_irqrestore(&mes->ring_lock, flags);
amdgpu_device_wb_free(adev, fence_offset);
return -ENOMEM;
}
r = amdgpu_ring_alloc(ring, (size + sizeof(mes_status_pkt)) / 4);
if (r)
goto error_unlock_free;
api_status = (struct MES_API_STATUS *)((char *)pkt + api_status_off);
api_status->api_completion_fence_addr = fence_gpu_addr;
api_status->api_completion_fence_addr = status_gpu_addr;
api_status->api_completion_fence_value = 1;
amdgpu_ring_write_multiple(ring, pkt, ndw);
amdgpu_ring_write_multiple(ring, pkt, size / 4);
memset(&mes_status_pkt, 0, sizeof(mes_status_pkt));
mes_status_pkt.header.type = MES_API_TYPE_SCHEDULER;
mes_status_pkt.header.opcode = MES_SCH_API_QUERY_SCHEDULER_STATUS;
mes_status_pkt.header.dwsize = API_FRAME_SIZE_IN_DWORDS;
mes_status_pkt.api_status.api_completion_fence_addr =
ring->fence_drv.gpu_addr;
mes_status_pkt.api_status.api_completion_fence_value =
++ring->fence_drv.sync_seq;
amdgpu_ring_write_multiple(ring, &mes_status_pkt,
sizeof(mes_status_pkt) / 4);
amdgpu_ring_commit(ring);
spin_unlock_irqrestore(&mes->ring_lock, flags);
@ -196,16 +206,17 @@ static int mes_v12_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
misc_op_str = mes_v12_0_get_misc_op_string(x_pkt);
if (misc_op_str)
dev_dbg(adev->dev, "MES msg=%s (%s) was emitted\n", op_str, misc_op_str);
dev_dbg(adev->dev, "MES msg=%s (%s) was emitted\n", op_str,
misc_op_str);
else if (op_str)
dev_dbg(adev->dev, "MES msg=%s was emitted\n", op_str);
else
dev_dbg(adev->dev, "MES msg=%d was emitted\n", x_pkt->header.opcode);
dev_dbg(adev->dev, "MES msg=%d was emitted\n",
x_pkt->header.opcode);
r = amdgpu_mes_fence_wait_polling(fence_ptr, (u64)1, timeout);
amdgpu_device_wb_free(adev, fence_offset);
r = amdgpu_fence_wait_polling(ring, ring->fence_drv.sync_seq, timeout);
if (r < 1 || !*status_ptr) {
if (r < 1) {
if (misc_op_str)
dev_err(adev->dev, "MES failed to respond to msg=%s (%s)\n",
op_str, misc_op_str);
@ -219,10 +230,19 @@ static int mes_v12_0_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
while (halt_if_hws_hang)
schedule();
return -ETIMEDOUT;
r = -ETIMEDOUT;
goto error_wb_free;
}
amdgpu_device_wb_free(adev, status_offset);
return 0;
error_unlock_free:
spin_unlock_irqrestore(&mes->ring_lock, flags);
error_wb_free:
amdgpu_device_wb_free(adev, status_offset);
return r;
}
static int convert_to_mes_queue_type(int queue_type)