diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/cmd_parser.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/cmd_parser.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 0651e63b25fb..865d80919827 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -1817,6 +1817,8 @@ static int cmd_handler_mi_batch_buffer_start(struct parser_exec_state *s) return ret; } +static int mi_noop_index; + static struct cmd_info cmd_info[] = { {"MI_NOOP", OP_MI_NOOP, F_LEN_CONST, R_ALL, D_ALL, 0, 1, NULL}, @@ -2502,7 +2504,12 @@ static int cmd_parser_exec(struct parser_exec_state *s) cmd = cmd_val(s, 0); - info = get_cmd_info(s->vgpu->gvt, cmd, s->ring_id); + /* fastpath for MI_NOOP */ + if (cmd == MI_NOOP) + info = &cmd_info[mi_noop_index]; + else + info = get_cmd_info(s->vgpu->gvt, cmd, s->ring_id); + if (info == NULL) { gvt_vgpu_err("unknown cmd 0x%x, opcode=0x%x, addr_type=%s, ring %d, workload=%p\n", cmd, get_opcode(cmd, s->ring_id), @@ -2905,6 +2912,8 @@ static int init_cmd_table(struct intel_gvt *gvt) kfree(e); return -EEXIST; } + if (cmd_info[i].opcode == OP_MI_NOOP) + mi_noop_index = i; INIT_HLIST_NODE(&e->hlist); add_cmd_entry(gvt, e); |