drm/i915: Add GuC-related module parameters
Two new module parameters: "enable_guc_submission" which will turn
on submission of batchbuffers via the GuC (when implemented), and
"guc_log_level" which controls the level of debugging logged by the
GuC and captured by the host.
Signed-off-by: Alex Dai <yu.dai@intel.com>
v4:
Mark "enable_guc_submission" unsafe [Daniel Vetter]
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 77c2379..b876e78 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2610,6 +2610,8 @@
bool reset;
bool disable_display;
bool disable_vtd_wa;
+ bool enable_guc_submission;
+ int guc_log_level;
int use_mmio_flip;
int mmio_debug;
bool verbose_state_checks;
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 5f4e729..5ae4b0a 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -52,6 +52,8 @@
.mmio_debug = 0,
.verbose_state_checks = 1,
.edp_vswing = 0,
+ .enable_guc_submission = false,
+ .guc_log_level = -1,
};
module_param_named(modeset, i915.modeset, int, 0400);
@@ -181,3 +183,10 @@
"Ignore/Override vswing pre-emph table selection from VBT "
"(0=use value from vbt [default], 1=low power swing(200mV),"
"2=default swing(400mV))");
+
+module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400);
+MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)");
+
+module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
+MODULE_PARM_DESC(guc_log_level,
+ "GuC firmware logging level (-1:disabled (default), 0-3:enabled)");