diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-01-11 18:27:24 +0300 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2024-01-11 22:54:29 +0300 |
| commit | d898c2e55593fea5da068de48a878c66520a4af8 (patch) | |
| tree | f77177767586c2e41db2b2df2c1bb5d756b231bd /drivers/gpu/drm/xe/xe_guc_ct.c | |
| parent | 3c01e01214026114609c577ce31f81d4e037dd50 (diff) | |
| download | linux-d898c2e55593fea5da068de48a878c66520a4af8.tar.xz | |
drm/xe/guc: Return CTB response length
Not all CTB responses from the GuC are fixed size and we need to
pass response length to the caller, if there was a response_buffer.
Easiest solution is to return it as positive value from all
xe_guc_ct_send_recv() functions. The CTB response length is always
between 1 and 254 (ie. GUC_HXG_MSG_MIN_LEN and GUC_CTB_MAX_DWORDS
- GUC_HXG_MSG_MIN_LEN).
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20240111152724.497-1-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_guc_ct.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_guc_ct.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index c29f095aa1b9..d490a4d42c01 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -780,7 +780,7 @@ retry_same_fence: ret = -EIO; } - return ret > 0 ? 0 : ret; + return ret > 0 ? response_buffer ? g2h_fence.response_len : 0 : ret; } int xe_guc_ct_send_recv(struct xe_guc_ct *ct, const u32 *action, u32 len, |