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| author |   Michal Wajdeczko <michal.wajdeczko@intel.com> | 2019-03-21 12:00:04 +0000 |
|---|---|---|
| committer |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-03-24 11:31:47 +0000 |
| commit | 47c3b5e9b38b9da8db62d8c354be722852ea9d83 (patch) | |
| tree | 82bc6fd24d04471d92a017fcac745e42e86386a5 /drivers/gpu/drm/i915/intel_guc.c | |
| parent | drm/i915: always pin hw_id for GVT context (diff) | |
| download | linux-dev-47c3b5e9b38b9da8db62d8c354be722852ea9d83.tar.xz linux-dev-47c3b5e9b38b9da8db62d8c354be722852ea9d83.zip | |
drm/i915/guc: Support for extended GuC notification messages
GuC may send notification messages with payload larger than
single u32. Prepare driver to accept longer messages.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Tomasz Lis <tomasz.lis@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190321120004.53012-1-michal.wajdeczko@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index a59448a56f55..f2b4eaee8d52 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -484,17 +484,25 @@ void intel_guc_to_host_event_handler_mmio(struct intel_guc *guc) spin_unlock(&guc->irq_lock); enable_rpm_wakeref_asserts(dev_priv); - intel_guc_to_host_process_recv_msg(guc, msg); + intel_guc_to_host_process_recv_msg(guc, &msg, 1); } -void intel_guc_to_host_process_recv_msg(struct intel_guc *guc, u32 msg) +int intel_guc_to_host_process_recv_msg(struct intel_guc *guc, + const u32 *payload, u32 len) { + u32 msg; + + if (unlikely(!len)) + return -EPROTO; + /* Make sure to handle only enabled messages */ - msg &= guc->msg_enabled_mask; + msg = payload[0] & guc->msg_enabled_mask; if (msg & (INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER | INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED)) intel_guc_log_handle_flush_event(&guc->log); + + return 0; } int intel_guc_sample_forcewake(struct intel_guc *guc) |