diff options
| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2024-10-25 00:03:08 +0300 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2024-10-28 16:56:35 +0000 |
| commit | 640f9149c3dcafbfeb495a10f6105c6f71f24d1d (patch) | |
| tree | 693ec931295a45f486c387b91e2d49feb9b18188 | |
| parent | df4c498e02e48c4dfc13e5d961b58f890a66c832 (diff) | |
virtio-gpu: Support suspension of commands processing
Check whether command processing has been finished; otherwise, stop
processing commands and retry the command again next time. This allows
us to support asynchronous execution of non-fenced commands needed for
unmapping host blobs safely.
Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-Id: <20241024210311.118220-11-dmitry.osipenko@collabora.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
| -rw-r--r-- | hw/display/trace-events | 1 | ||||
| -rw-r--r-- | hw/display/virtio-gpu.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/hw/display/trace-events b/hw/display/trace-events index e212710284..d26d663f96 100644 --- a/hw/display/trace-events +++ b/hw/display/trace-events @@ -55,6 +55,7 @@ virtio_gpu_fence_ctrl(uint64_t fence, uint32_t type) "fence 0x%" PRIx64 ", type virtio_gpu_fence_resp(uint64_t fence) "fence 0x%" PRIx64 virtio_gpu_inc_inflight_fences(uint32_t inflight) "in-flight+ %u" virtio_gpu_dec_inflight_fences(uint32_t inflight) "in-flight- %u" +virtio_gpu_cmd_suspended(uint32_t cmd) "cmd 0x%x" # qxl.c disable qxl_io_write_vga(int qid, const char *mode, uint32_t addr, uint32_t val) "%d %s addr=%u val=%u" diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 3d9679c1ef..180d882f0a 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -1034,6 +1034,12 @@ void virtio_gpu_process_cmdq(VirtIOGPU *g) /* process command */ vgc->process_cmd(g, cmd); + /* command suspended */ + if (!cmd->finished && !(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) { + trace_virtio_gpu_cmd_suspended(cmd->cmd_hdr.type); + break; + } + QTAILQ_REMOVE(&g->cmdq, cmd, next); if (virtio_gpu_stats_enabled(g->parent_obj.conf)) { g->stats.requests++; |