Declare header and source files for SLPC, along with init and enable/disable function templates.
Signed-off-by: Vinay Belgaumkar vinay.belgaumkar@intel.com Signed-off-by: Sundaresan Sujaritha sujaritha.sundaresan@intel.com --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/gt/uc/intel_guc.h | 2 ++ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 34 +++++++++++++++++++++ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h | 16 ++++++++++ 4 files changed, 53 insertions(+) create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index ab7679957623..d8eac4468df9 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -186,6 +186,7 @@ i915-y += gt/uc/intel_uc.o \ gt/uc/intel_guc_fw.o \ gt/uc/intel_guc_log.o \ gt/uc/intel_guc_log_debugfs.o \ + gt/uc/intel_guc_slpc.o \ gt/uc/intel_guc_submission.o \ gt/uc/intel_huc.o \ gt/uc/intel_huc_debugfs.o \ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index e5a456918b88..0dbbd9cf553f 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -15,6 +15,7 @@ #include "intel_guc_ct.h" #include "intel_guc_log.h" #include "intel_guc_reg.h" +#include "intel_guc_slpc.h" #include "intel_uc_fw.h" #include "i915_utils.h" #include "i915_vma.h" @@ -30,6 +31,7 @@ struct intel_guc { struct intel_uc_fw fw; struct intel_guc_log log; struct intel_guc_ct ct; + struct intel_guc_slpc slpc;
/* Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c new file mode 100644 index 000000000000..c1f569d2300d --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -0,0 +1,34 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2020 Intel Corporation + */ + +#include "intel_guc_slpc.h" + +int intel_guc_slpc_init(struct intel_guc_slpc *slpc) +{ + return 0; +} + +/* + * intel_guc_slpc_enable() - Start SLPC + * @slpc: pointer to intel_guc_slpc. + * + * SLPC is enabled by setting up the shared data structure and + * sending reset event to GuC SLPC. Initial data is setup in + * intel_guc_slpc_init. Here we send the reset event. We do + * not currently need a slpc_disable since this is taken care + * of automatically when a reset/suspend occurs and the guc + * channels are destroyed. + * + * Return: 0 on success, non-zero error code on failure. + */ +int intel_guc_slpc_enable(struct intel_guc_slpc *slpc) +{ + return 0; +} + +void intel_guc_slpc_fini(struct intel_guc_slpc *slpc) +{ +} diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h new file mode 100644 index 000000000000..74fd86769163 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h @@ -0,0 +1,16 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2020 Intel Corporation + */ +#ifndef _INTEL_GUC_SLPC_H_ +#define _INTEL_GUC_SLPC_H_ + +struct intel_guc_slpc { +}; + +int intel_guc_slpc_init(struct intel_guc_slpc *slpc); +int intel_guc_slpc_enable(struct intel_guc_slpc *slpc); +void intel_guc_slpc_fini(struct intel_guc_slpc *slpc); + +#endif