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| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2018-03-26 19:48:18 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-03-28 20:35:09 +0100 |
| commit | 4d82a174847b1b2d5e541ca7040398ac56efed7b (patch) | |
| tree | 1746004755b1575c73ca77bb7ade9d9f0ed827ae /drivers/gpu/drm/i915/intel_guc_ct.c | |
| parent | c216e90686105e5b9fdbb22f6cfcc38334e432cc (diff) | |
| download | linux-stable-4d82a174847b1b2d5e541ca7040398ac56efed7b.tar.gz linux-stable-4d82a174847b1b2d5e541ca7040398ac56efed7b.tar.bz2 linux-stable-4d82a174847b1b2d5e541ca7040398ac56efed7b.zip | |
drm/i915/guc: Add documentation for MMIO based communication
As we are going to extend our use of MMIO based communication,
try to explain its mechanics and update corresponding definitions.
v2: fix checkpatch MACRO_ARG_REUSE
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Kelvin Gardiner <kelvin.gardiner@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com> #1
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180326194829.58836-2-michal.wajdeczko@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc_ct.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc_ct.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_ct.c b/drivers/gpu/drm/i915/intel_guc_ct.c index a726283489d1..1dafa7a20d89 100644 --- a/drivers/gpu/drm/i915/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/intel_guc_ct.c @@ -398,7 +398,7 @@ static int ctch_send(struct intel_guc *guc, err = wait_for_response(desc, fence, status); if (unlikely(err)) return err; - if (*status != INTEL_GUC_STATUS_SUCCESS) + if (!INTEL_GUC_MSG_IS_RESPONSE_SUCCESS(*status)) return -EIO; return 0; } |