diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_hfi.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c index d4c65bf0a1b7..d73fce5fdf1f 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c @@ -36,6 +36,8 @@ static int a6xx_hfi_queue_read(struct a6xx_gmu *gmu, hdr = queue->data[index]; + queue->history[(queue->history_idx++) % HFI_HISTORY_SZ] = index; + /* * If we are to assume that the GMU firmware is in fact a rational actor * and is programmed to not send us a larger response than we expect @@ -75,6 +77,8 @@ static int a6xx_hfi_queue_write(struct a6xx_gmu *gmu, return -ENOSPC; } + queue->history[(queue->history_idx++) % HFI_HISTORY_SZ] = index; + for (i = 0; i < dwords; i++) { queue->data[index] = data[i]; index = (index + 1) % header->size; @@ -600,6 +604,9 @@ void a6xx_hfi_stop(struct a6xx_gmu *gmu) queue->header->read_index = 0; queue->header->write_index = 0; + + memset(&queue->history, 0xff, sizeof(queue->history)); + queue->history_idx = 0; } } @@ -612,6 +619,9 @@ static void a6xx_hfi_queue_init(struct a6xx_hfi_queue *queue, queue->data = virt; atomic_set(&queue->seqnum, 0); + memset(&queue->history, 0xff, sizeof(queue->history)); + queue->history_idx = 0; + /* Set up the shared memory header */ header->iova = iova; header->type = 10 << 8 | id; |