From: Alex Dai Date: Thu, 9 Jul 2015 18:29:03 +0000 (+0100) Subject: drm/i915: Add GuC-related module parameters X-Git-Tag: firefly_0821_release~176^2~721^2~33^2~209 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=63dc04498ace9cb657174e77373d6fcc85d6c492;p=firefly-linux-kernel-4.4.55.git 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 v4: Mark "enable_guc_submission" unsafe [Daniel Vetter] Signed-off-by: Dave Gordon Reviewed-by: Tom O'Rourke Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 77c23796f119..b876e788e2f8 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2610,6 +2610,8 @@ struct i915_params { 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 5f4e7295295f..5ae4b0aba564 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -52,6 +52,8 @@ struct i915_params i915 __read_mostly = { .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 @@ MODULE_PARM_DESC(edp_vswing, "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)");