diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index f22cd9b2311b..c6f971a049f9 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -510,13 +510,18 @@ unlink: /* * Command Transport (CT) buffer based GuC send function. */ -int intel_guc_send_ct(struct intel_guc *guc, const u32 *action, u32 len, +int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len, u32 *response_buf, u32 response_buf_size) { - struct intel_guc_ct *ct = &guc->ct; + struct intel_guc *guc = ct_to_guc(ct); u32 status = ~0; /* undefined */ int ret; + if (unlikely(!ct->enabled)) { + WARN(1, "Unexpected send: action=%#x\n", *action); + return -ENODEV; + } + mutex_lock(&guc->send_mutex); ret = ct_send(ct, action, len, response_buf, response_buf_size, &status); @@ -787,15 +792,16 @@ static int ct_handle_request(struct intel_guc_ct *ct, const u32 *msg) * When we're communicating with the GuC over CT, GuC uses events * to notify us about new messages being posted on the RECV buffer. */ -void intel_guc_to_host_event_handler_ct(struct intel_guc *guc) +void intel_guc_ct_event_handler(struct intel_guc_ct *ct) { - struct intel_guc_ct *ct = &guc->ct; struct intel_guc_ct_buffer *ctb = &ct->ctbs[CTB_RECV]; u32 msg[GUC_CT_MSG_LEN_MASK + 1]; /* one extra dw for the header */ int err = 0; - if (!ct->enabled) + if (unlikely(!ct->enabled)) { + WARN(1, "Unexpected GuC event received while CT disabled!\n"); return; + } do { err = ctb_read(ctb, msg); |