diff mbox series

[02/15] drm/i915/guc/slpc: Initial definitions for SLPC

Message ID 20210726190800.26762-3-vinay.belgaumkar@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/guc/slpc: Enable GuC based power management features | expand

Commit Message

Vinay Belgaumkar July 26, 2021, 7:07 p.m. UTC
Add macros to check for SLPC support. This feature is currently supported
for Gen12+ and enabled whenever GuC submission is enabled/selected.

Include templates for SLPC init/fini and enable.

v2: Move SLPC helper functions to intel_guc_slpc.c/.h. Define basic
template for SLPC structure in intel_guc_slpc_types.h. Fix copyright (Michal W)

v3: Review comments (Michal W)

Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Sundaresan Sujaritha <sujaritha.sundaresan@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

drm/i915/guc/slpc: Lay out slpc init/enable/fini

Declare init/fini and enable function templates.

v2: Rebase

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.c        |  2 +
 drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  4 ++
 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c   | 45 +++++++++++++++++++
 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h   | 33 ++++++++++++++
 .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 12 +++++
 drivers/gpu/drm/i915/gt/uc/intel_uc.c         |  6 ++-
 drivers/gpu/drm/i915/gt/uc/intel_uc.h         |  2 +
 8 files changed, 103 insertions(+), 2 deletions(-)
 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
 create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h

Comments

Michal Wajdeczko July 27, 2021, 1:43 p.m. UTC | #1
On 26.07.2021 21:07, Vinay Belgaumkar wrote:
> Add macros to check for SLPC support. This feature is currently supported
> for Gen12+ and enabled whenever GuC submission is enabled/selected.
> 
> Include templates for SLPC init/fini and enable.
> 
> v2: Move SLPC helper functions to intel_guc_slpc.c/.h. Define basic
> template for SLPC structure in intel_guc_slpc_types.h. Fix copyright (Michal W)
> 
> v3: Review comments (Michal W)
> 
> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
> Signed-off-by: Sundaresan Sujaritha <sujaritha.sundaresan@intel.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> 
> drm/i915/guc/slpc: Lay out slpc init/enable/fini
> 
> Declare init/fini and enable function templates.
> 
> v2: Rebase
> 
> 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.c        |  2 +
>  drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  4 ++
>  drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c   | 45 +++++++++++++++++++
>  drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h   | 33 ++++++++++++++
>  .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 12 +++++
>  drivers/gpu/drm/i915/gt/uc/intel_uc.c         |  6 ++-
>  drivers/gpu/drm/i915/gt/uc/intel_uc.h         |  2 +
>  8 files changed, 103 insertions(+), 2 deletions(-)
>  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
>  create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.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.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> index 979128e28372..39bc3c16057b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> @@ -7,6 +7,7 @@
>  #include "gt/intel_gt_irq.h"
>  #include "gt/intel_gt_pm_irq.h"
>  #include "intel_guc.h"
> +#include "intel_guc_slpc.h"
>  #include "intel_guc_ads.h"
>  #include "intel_guc_submission.h"
>  #include "i915_drv.h"
> @@ -157,6 +158,7 @@ void intel_guc_init_early(struct intel_guc *guc)
>  	intel_guc_ct_init_early(&guc->ct);
>  	intel_guc_log_init_early(&guc->log);
>  	intel_guc_submission_init_early(guc);
> +	intel_guc_slpc_init_early(&guc->slpc);
>  
>  	mutex_init(&guc->send_mutex);
>  	spin_lock_init(&guc->irq_lock);
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
> index a9547069ee7e..15ad2eaee473 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_types.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;
> @@ -57,6 +59,8 @@ struct intel_guc {
>  
>  	bool submission_supported;
>  	bool submission_selected;
> +	bool slpc_supported;
> +	bool slpc_selected;

(I know that you were following existing code, but we might do better
and since you have to resend it anyway without patch 1/15 ...)

as we have here:

+	struct intel_guc_slpc slpc;

then maybe both supported/selected shall be moved there as:

 struct intel_guc_slpc {
+	bool supported;
+	bool selected;
 };

so the struct wont be empty any more, with that fixed:

Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

>  
>  	struct i915_vma *ads_vma;
>  	struct __guc_ads_blob *ads_blob;
> 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..7275100ef8f8
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
> @@ -0,0 +1,45 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2021 Intel Corporation
> + */
> +
> +#include "i915_drv.h"
> +#include "intel_guc_slpc.h"
> +#include "gt/intel_gt.h"
> +
> +static inline struct intel_guc *slpc_to_guc(struct intel_guc_slpc *slpc)
> +{
> +	return container_of(slpc, struct intel_guc, slpc);
> +}
> +
> +static bool __detect_slpc_supported(struct intel_guc *guc)
> +{
> +	/* GuC SLPC is unavailable for pre-Gen12 */
> +	return guc->submission_supported &&
> +		GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
> +}
> +
> +static bool __guc_slpc_selected(struct intel_guc *guc)
> +{
> +	if (!intel_guc_slpc_is_supported(guc))
> +		return false;
> +
> +	return guc->submission_selected;
> +}
> +
> +void intel_guc_slpc_init_early(struct intel_guc_slpc *slpc)
> +{
> +	struct intel_guc *guc = slpc_to_guc(slpc);
> +
> +	guc->slpc_supported = __detect_slpc_supported(guc);
> +	guc->slpc_selected = __guc_slpc_selected(guc);
> +}
> +
> +int intel_guc_slpc_init(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..c3b0ad7f0f93
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
> @@ -0,0 +1,33 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2021 Intel Corporation
> + */
> +
> +#ifndef _INTEL_GUC_SLPC_H_
> +#define _INTEL_GUC_SLPC_H_
> +
> +#include "intel_guc_submission.h"
> +#include "intel_guc_slpc_types.h"
> +
> +static inline bool intel_guc_slpc_is_supported(struct intel_guc *guc)
> +{
> +	return guc->slpc_supported;
> +}
> +
> +static inline bool intel_guc_slpc_is_wanted(struct intel_guc *guc)
> +{
> +	return guc->slpc_selected;
> +}
> +
> +static inline bool intel_guc_slpc_is_used(struct intel_guc *guc)
> +{
> +	return intel_guc_submission_is_used(guc) && intel_guc_slpc_is_wanted(guc);
> +}
> +
> +void intel_guc_slpc_init_early(struct intel_guc_slpc *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
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
> new file mode 100644
> index 000000000000..bfe4a7f9ce15
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
> @@ -0,0 +1,12 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2021 Intel Corporation
> + */
> +
> +#ifndef _INTEL_GUC_SLPC_TYPES_H_
> +#define _INTEL_GUC_SLPC_TYPES_H_
> +
> +struct intel_guc_slpc {
> +};
> +
> +#endif
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> index da57d18d9f6b..e6bd9406c7b2 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
> @@ -75,16 +75,18 @@ static void __confirm_options(struct intel_uc *uc)
>  	struct drm_i915_private *i915 = uc_to_gt(uc)->i915;
>  
>  	drm_dbg(&i915->drm,
> -		"enable_guc=%d (guc:%s submission:%s huc:%s)\n",
> +		"enable_guc=%d (guc:%s submission:%s huc:%s slpc:%s)\n",
>  		i915->params.enable_guc,
>  		yesno(intel_uc_wants_guc(uc)),
>  		yesno(intel_uc_wants_guc_submission(uc)),
> -		yesno(intel_uc_wants_huc(uc)));
> +		yesno(intel_uc_wants_huc(uc)),
> +		yesno(intel_uc_wants_guc_slpc(uc)));
>  
>  	if (i915->params.enable_guc == 0) {
>  		GEM_BUG_ON(intel_uc_wants_guc(uc));
>  		GEM_BUG_ON(intel_uc_wants_guc_submission(uc));
>  		GEM_BUG_ON(intel_uc_wants_huc(uc));
> +		GEM_BUG_ON(intel_uc_wants_guc_slpc(uc));
>  		return;
>  	}
>  
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.h b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
> index e2da2b6e76e1..925a58ca6b94 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
> @@ -8,6 +8,7 @@
>  
>  #include "intel_guc.h"
>  #include "intel_guc_submission.h"
> +#include "intel_guc_slpc.h"
>  #include "intel_huc.h"
>  #include "i915_params.h"
>  
> @@ -83,6 +84,7 @@ __uc_state_checker(x, func, uses, used)
>  uc_state_checkers(guc, guc);
>  uc_state_checkers(huc, huc);
>  uc_state_checkers(guc, guc_submission);
> +uc_state_checkers(guc, guc_slpc);
>  
>  #undef uc_state_checkers
>  #undef __uc_state_checker
>
Vinay Belgaumkar July 27, 2021, 6:47 p.m. UTC | #2
On 7/27/2021 6:43 AM, Michal Wajdeczko wrote:
> 
> 
> On 26.07.2021 21:07, Vinay Belgaumkar wrote:
>> Add macros to check for SLPC support. This feature is currently supported
>> for Gen12+ and enabled whenever GuC submission is enabled/selected.
>>
>> Include templates for SLPC init/fini and enable.
>>
>> v2: Move SLPC helper functions to intel_guc_slpc.c/.h. Define basic
>> template for SLPC structure in intel_guc_slpc_types.h. Fix copyright (Michal W)
>>
>> v3: Review comments (Michal W)
>>
>> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
>> Signed-off-by: Sundaresan Sujaritha <sujaritha.sundaresan@intel.com>
>> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
>>
>> drm/i915/guc/slpc: Lay out slpc init/enable/fini
>>
>> Declare init/fini and enable function templates.
>>
>> v2: Rebase
>>
>> 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.c        |  2 +
>>   drivers/gpu/drm/i915/gt/uc/intel_guc.h        |  4 ++
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c   | 45 +++++++++++++++++++
>>   drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h   | 33 ++++++++++++++
>>   .../gpu/drm/i915/gt/uc/intel_guc_slpc_types.h | 12 +++++
>>   drivers/gpu/drm/i915/gt/uc/intel_uc.c         |  6 ++-
>>   drivers/gpu/drm/i915/gt/uc/intel_uc.h         |  2 +
>>   8 files changed, 103 insertions(+), 2 deletions(-)
>>   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
>>   create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.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.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> index 979128e28372..39bc3c16057b 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
>> @@ -7,6 +7,7 @@
>>   #include "gt/intel_gt_irq.h"
>>   #include "gt/intel_gt_pm_irq.h"
>>   #include "intel_guc.h"
>> +#include "intel_guc_slpc.h"
>>   #include "intel_guc_ads.h"
>>   #include "intel_guc_submission.h"
>>   #include "i915_drv.h"
>> @@ -157,6 +158,7 @@ void intel_guc_init_early(struct intel_guc *guc)
>>   	intel_guc_ct_init_early(&guc->ct);
>>   	intel_guc_log_init_early(&guc->log);
>>   	intel_guc_submission_init_early(guc);
>> +	intel_guc_slpc_init_early(&guc->slpc);
>>   
>>   	mutex_init(&guc->send_mutex);
>>   	spin_lock_init(&guc->irq_lock);
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
>> index a9547069ee7e..15ad2eaee473 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_types.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;
>> @@ -57,6 +59,8 @@ struct intel_guc {
>>   
>>   	bool submission_supported;
>>   	bool submission_selected;
>> +	bool slpc_supported;
>> +	bool slpc_selected;
> 
> (I know that you were following existing code, but we might do better
> and since you have to resend it anyway without patch 1/15 ...)
> 
> as we have here:
> 
> +	struct intel_guc_slpc slpc;
> 
> then maybe both supported/selected shall be moved there as:
> 
>   struct intel_guc_slpc {
> +	bool supported;
> +	bool selected;
>   };
> 
> so the struct wont be empty any more, with that fixed:
> 
> Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

Ok, done,

Thanks for the review,
Vinay.
> 
>>   
>>   	struct i915_vma *ads_vma;
>>   	struct __guc_ads_blob *ads_blob;
>> 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..7275100ef8f8
>> --- /dev/null
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
>> @@ -0,0 +1,45 @@
>> +// SPDX-License-Identifier: MIT
>> +/*
>> + * Copyright © 2021 Intel Corporation
>> + */
>> +
>> +#include "i915_drv.h"
>> +#include "intel_guc_slpc.h"
>> +#include "gt/intel_gt.h"
>> +
>> +static inline struct intel_guc *slpc_to_guc(struct intel_guc_slpc *slpc)
>> +{
>> +	return container_of(slpc, struct intel_guc, slpc);
>> +}
>> +
>> +static bool __detect_slpc_supported(struct intel_guc *guc)
>> +{
>> +	/* GuC SLPC is unavailable for pre-Gen12 */
>> +	return guc->submission_supported &&
>> +		GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
>> +}
>> +
>> +static bool __guc_slpc_selected(struct intel_guc *guc)
>> +{
>> +	if (!intel_guc_slpc_is_supported(guc))
>> +		return false;
>> +
>> +	return guc->submission_selected;
>> +}
>> +
>> +void intel_guc_slpc_init_early(struct intel_guc_slpc *slpc)
>> +{
>> +	struct intel_guc *guc = slpc_to_guc(slpc);
>> +
>> +	guc->slpc_supported = __detect_slpc_supported(guc);
>> +	guc->slpc_selected = __guc_slpc_selected(guc);
>> +}
>> +
>> +int intel_guc_slpc_init(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..c3b0ad7f0f93
>> --- /dev/null
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
>> @@ -0,0 +1,33 @@
>> +/* SPDX-License-Identifier: MIT */
>> +/*
>> + * Copyright © 2021 Intel Corporation
>> + */
>> +
>> +#ifndef _INTEL_GUC_SLPC_H_
>> +#define _INTEL_GUC_SLPC_H_
>> +
>> +#include "intel_guc_submission.h"
>> +#include "intel_guc_slpc_types.h"
>> +
>> +static inline bool intel_guc_slpc_is_supported(struct intel_guc *guc)
>> +{
>> +	return guc->slpc_supported;
>> +}
>> +
>> +static inline bool intel_guc_slpc_is_wanted(struct intel_guc *guc)
>> +{
>> +	return guc->slpc_selected;
>> +}
>> +
>> +static inline bool intel_guc_slpc_is_used(struct intel_guc *guc)
>> +{
>> +	return intel_guc_submission_is_used(guc) && intel_guc_slpc_is_wanted(guc);
>> +}
>> +
>> +void intel_guc_slpc_init_early(struct intel_guc_slpc *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
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
>> new file mode 100644
>> index 000000000000..bfe4a7f9ce15
>> --- /dev/null
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
>> @@ -0,0 +1,12 @@
>> +/* SPDX-License-Identifier: MIT */
>> +/*
>> + * Copyright © 2021 Intel Corporation
>> + */
>> +
>> +#ifndef _INTEL_GUC_SLPC_TYPES_H_
>> +#define _INTEL_GUC_SLPC_TYPES_H_
>> +
>> +struct intel_guc_slpc {
>> +};
>> +
>> +#endif
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
>> index da57d18d9f6b..e6bd9406c7b2 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
>> @@ -75,16 +75,18 @@ static void __confirm_options(struct intel_uc *uc)
>>   	struct drm_i915_private *i915 = uc_to_gt(uc)->i915;
>>   
>>   	drm_dbg(&i915->drm,
>> -		"enable_guc=%d (guc:%s submission:%s huc:%s)\n",
>> +		"enable_guc=%d (guc:%s submission:%s huc:%s slpc:%s)\n",
>>   		i915->params.enable_guc,
>>   		yesno(intel_uc_wants_guc(uc)),
>>   		yesno(intel_uc_wants_guc_submission(uc)),
>> -		yesno(intel_uc_wants_huc(uc)));
>> +		yesno(intel_uc_wants_huc(uc)),
>> +		yesno(intel_uc_wants_guc_slpc(uc)));
>>   
>>   	if (i915->params.enable_guc == 0) {
>>   		GEM_BUG_ON(intel_uc_wants_guc(uc));
>>   		GEM_BUG_ON(intel_uc_wants_guc_submission(uc));
>>   		GEM_BUG_ON(intel_uc_wants_huc(uc));
>> +		GEM_BUG_ON(intel_uc_wants_guc_slpc(uc));
>>   		return;
>>   	}
>>   
>> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.h b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
>> index e2da2b6e76e1..925a58ca6b94 100644
>> --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.h
>> +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
>> @@ -8,6 +8,7 @@
>>   
>>   #include "intel_guc.h"
>>   #include "intel_guc_submission.h"
>> +#include "intel_guc_slpc.h"
>>   #include "intel_huc.h"
>>   #include "i915_params.h"
>>   
>> @@ -83,6 +84,7 @@ __uc_state_checker(x, func, uses, used)
>>   uc_state_checkers(guc, guc);
>>   uc_state_checkers(huc, huc);
>>   uc_state_checkers(guc, guc_submission);
>> +uc_state_checkers(guc, guc_slpc);
>>   
>>   #undef uc_state_checkers
>>   #undef __uc_state_checker
>>
diff mbox series

Patch

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.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 979128e28372..39bc3c16057b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -7,6 +7,7 @@ 
 #include "gt/intel_gt_irq.h"
 #include "gt/intel_gt_pm_irq.h"
 #include "intel_guc.h"
+#include "intel_guc_slpc.h"
 #include "intel_guc_ads.h"
 #include "intel_guc_submission.h"
 #include "i915_drv.h"
@@ -157,6 +158,7 @@  void intel_guc_init_early(struct intel_guc *guc)
 	intel_guc_ct_init_early(&guc->ct);
 	intel_guc_log_init_early(&guc->log);
 	intel_guc_submission_init_early(guc);
+	intel_guc_slpc_init_early(&guc->slpc);
 
 	mutex_init(&guc->send_mutex);
 	spin_lock_init(&guc->irq_lock);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index a9547069ee7e..15ad2eaee473 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_types.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;
@@ -57,6 +59,8 @@  struct intel_guc {
 
 	bool submission_supported;
 	bool submission_selected;
+	bool slpc_supported;
+	bool slpc_selected;
 
 	struct i915_vma *ads_vma;
 	struct __guc_ads_blob *ads_blob;
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..7275100ef8f8
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c
@@ -0,0 +1,45 @@ 
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "intel_guc_slpc.h"
+#include "gt/intel_gt.h"
+
+static inline struct intel_guc *slpc_to_guc(struct intel_guc_slpc *slpc)
+{
+	return container_of(slpc, struct intel_guc, slpc);
+}
+
+static bool __detect_slpc_supported(struct intel_guc *guc)
+{
+	/* GuC SLPC is unavailable for pre-Gen12 */
+	return guc->submission_supported &&
+		GRAPHICS_VER(guc_to_gt(guc)->i915) >= 12;
+}
+
+static bool __guc_slpc_selected(struct intel_guc *guc)
+{
+	if (!intel_guc_slpc_is_supported(guc))
+		return false;
+
+	return guc->submission_selected;
+}
+
+void intel_guc_slpc_init_early(struct intel_guc_slpc *slpc)
+{
+	struct intel_guc *guc = slpc_to_guc(slpc);
+
+	guc->slpc_supported = __detect_slpc_supported(guc);
+	guc->slpc_selected = __guc_slpc_selected(guc);
+}
+
+int intel_guc_slpc_init(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..c3b0ad7f0f93
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h
@@ -0,0 +1,33 @@ 
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef _INTEL_GUC_SLPC_H_
+#define _INTEL_GUC_SLPC_H_
+
+#include "intel_guc_submission.h"
+#include "intel_guc_slpc_types.h"
+
+static inline bool intel_guc_slpc_is_supported(struct intel_guc *guc)
+{
+	return guc->slpc_supported;
+}
+
+static inline bool intel_guc_slpc_is_wanted(struct intel_guc *guc)
+{
+	return guc->slpc_selected;
+}
+
+static inline bool intel_guc_slpc_is_used(struct intel_guc *guc)
+{
+	return intel_guc_submission_is_used(guc) && intel_guc_slpc_is_wanted(guc);
+}
+
+void intel_guc_slpc_init_early(struct intel_guc_slpc *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
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
new file mode 100644
index 000000000000..bfe4a7f9ce15
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc_types.h
@@ -0,0 +1,12 @@ 
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef _INTEL_GUC_SLPC_TYPES_H_
+#define _INTEL_GUC_SLPC_TYPES_H_
+
+struct intel_guc_slpc {
+};
+
+#endif
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index da57d18d9f6b..e6bd9406c7b2 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -75,16 +75,18 @@  static void __confirm_options(struct intel_uc *uc)
 	struct drm_i915_private *i915 = uc_to_gt(uc)->i915;
 
 	drm_dbg(&i915->drm,
-		"enable_guc=%d (guc:%s submission:%s huc:%s)\n",
+		"enable_guc=%d (guc:%s submission:%s huc:%s slpc:%s)\n",
 		i915->params.enable_guc,
 		yesno(intel_uc_wants_guc(uc)),
 		yesno(intel_uc_wants_guc_submission(uc)),
-		yesno(intel_uc_wants_huc(uc)));
+		yesno(intel_uc_wants_huc(uc)),
+		yesno(intel_uc_wants_guc_slpc(uc)));
 
 	if (i915->params.enable_guc == 0) {
 		GEM_BUG_ON(intel_uc_wants_guc(uc));
 		GEM_BUG_ON(intel_uc_wants_guc_submission(uc));
 		GEM_BUG_ON(intel_uc_wants_huc(uc));
+		GEM_BUG_ON(intel_uc_wants_guc_slpc(uc));
 		return;
 	}
 
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.h b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
index e2da2b6e76e1..925a58ca6b94 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
@@ -8,6 +8,7 @@ 
 
 #include "intel_guc.h"
 #include "intel_guc_submission.h"
+#include "intel_guc_slpc.h"
 #include "intel_huc.h"
 #include "i915_params.h"
 
@@ -83,6 +84,7 @@  __uc_state_checker(x, func, uses, used)
 uc_state_checkers(guc, guc);
 uc_state_checkers(huc, huc);
 uc_state_checkers(guc, guc_submission);
+uc_state_checkers(guc, guc_slpc);
 
 #undef uc_state_checkers
 #undef __uc_state_checker