[PATCH 08/47] drm/i915/guc: Add new GuC interface defines and structures

[Matthew Brost]

On Tue, Jun 29, 2021 at 02:11:00PM -0700, John Harrison wrote:
> On 6/24/2021 00:04, Matthew Brost wrote:
> > Add new GuC interface defines and structures while maintaining old ones
> > in parallel.
> > 
> > Cc: John Harrison <john.c.harrison at intel.com>
> > Signed-off-by: Matthew Brost <matthew.brost at intel.com>
> I think there was some difference of opinion over whether these additions
> should be squashed in to the specific patches that first use them. However,
> on the grounds that such is basically a patch-only style comment and doesn't
> change the final product plus, we need to get this stuff merged efficiently
> and not spend forever rebasing and refactoring...
> 

Agree this doesn't need to be squashed as it doesn't break anything and
also this all dead code anyways until we enable submission at the end of
the series.

Matt

> Reviewed-by: John Harrison <John.C.Harrison at Intel.com>
> 
> 
> > ---
> >   .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h  | 14 +++++++
> >   drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h   | 41 +++++++++++++++++++
> >   2 files changed, 55 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> > index 2d6198e63ebe..57e18babdf4b 100644
> > --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> > +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_actions_abi.h
> > @@ -124,10 +124,24 @@ enum intel_guc_action {
> >   	INTEL_GUC_ACTION_FORCE_LOG_BUFFER_FLUSH = 0x302,
> >   	INTEL_GUC_ACTION_ENTER_S_STATE = 0x501,
> >   	INTEL_GUC_ACTION_EXIT_S_STATE = 0x502,
> > +	INTEL_GUC_ACTION_GLOBAL_SCHED_POLICY_CHANGE = 0x506,
> > +	INTEL_GUC_ACTION_SCHED_CONTEXT = 0x1000,
> > +	INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET = 0x1001,
> > +	INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE = 0x1002,
> > +	INTEL_GUC_ACTION_SCHED_ENGINE_MODE_SET = 0x1003,
> > +	INTEL_GUC_ACTION_SCHED_ENGINE_MODE_DONE = 0x1004,
> > +	INTEL_GUC_ACTION_SET_CONTEXT_PRIORITY = 0x1005,
> > +	INTEL_GUC_ACTION_SET_CONTEXT_EXECUTION_QUANTUM = 0x1006,
> > +	INTEL_GUC_ACTION_SET_CONTEXT_PREEMPTION_TIMEOUT = 0x1007,
> > +	INTEL_GUC_ACTION_CONTEXT_RESET_NOTIFICATION = 0x1008,
> > +	INTEL_GUC_ACTION_ENGINE_FAILURE_NOTIFICATION = 0x1009,
> >   	INTEL_GUC_ACTION_SLPC_REQUEST = 0x3003,
> >   	INTEL_GUC_ACTION_AUTHENTICATE_HUC = 0x4000,
> > +	INTEL_GUC_ACTION_REGISTER_CONTEXT = 0x4502,
> > +	INTEL_GUC_ACTION_DEREGISTER_CONTEXT = 0x4503,
> >   	INTEL_GUC_ACTION_REGISTER_COMMAND_TRANSPORT_BUFFER = 0x4505,
> >   	INTEL_GUC_ACTION_DEREGISTER_COMMAND_TRANSPORT_BUFFER = 0x4506,
> > +	INTEL_GUC_ACTION_DEREGISTER_CONTEXT_DONE = 0x4600,
> >   	INTEL_GUC_ACTION_LIMIT
> >   };
> > diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> > index 617ec601648d..28245a217a39 100644
> > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> > @@ -17,6 +17,9 @@
> >   #include "abi/guc_communication_ctb_abi.h"
> >   #include "abi/guc_messages_abi.h"
> > +#define GUC_CONTEXT_DISABLE		0
> > +#define GUC_CONTEXT_ENABLE		1
> > +
> >   #define GUC_CLIENT_PRIORITY_KMD_HIGH	0
> >   #define GUC_CLIENT_PRIORITY_HIGH	1
> >   #define GUC_CLIENT_PRIORITY_KMD_NORMAL	2
> > @@ -26,6 +29,9 @@
> >   #define GUC_MAX_STAGE_DESCRIPTORS	1024
> >   #define	GUC_INVALID_STAGE_ID		GUC_MAX_STAGE_DESCRIPTORS
> > +#define GUC_MAX_LRC_DESCRIPTORS		65535
> > +#define	GUC_INVALID_LRC_ID		GUC_MAX_LRC_DESCRIPTORS
> > +
> >   #define GUC_RENDER_ENGINE		0
> >   #define GUC_VIDEO_ENGINE		1
> >   #define GUC_BLITTER_ENGINE		2
> > @@ -237,6 +243,41 @@ struct guc_stage_desc {
> >   	u64 desc_private;
> >   } __packed;
> > +#define CONTEXT_REGISTRATION_FLAG_KMD	BIT(0)
> > +
> > +#define CONTEXT_POLICY_DEFAULT_EXECUTION_QUANTUM_US 1000000
> > +#define CONTEXT_POLICY_DEFAULT_PREEMPTION_TIME_US 500000
> > +
> > +/* Preempt to idle on quantum expiry */
> > +#define CONTEXT_POLICY_FLAG_PREEMPT_TO_IDLE	BIT(0)
> > +
> > +/*
> > + * GuC Context registration descriptor.
> > + * FIXME: This is only required to exist during context registration.
> > + * The current 1:1 between guc_lrc_desc and LRCs for the lifetime of the LRC
> > + * is not required.
> > + */
> > +struct guc_lrc_desc {
> > +	u32 hw_context_desc;
> > +	u32 slpm_perf_mode_hint;	/* SPLC v1 only */
> > +	u32 slpm_freq_hint;
> > +	u32 engine_submit_mask;		/* In logical space */
> > +	u8 engine_class;
> > +	u8 reserved0[3];
> > +	u32 priority;
> > +	u32 process_desc;
> > +	u32 wq_addr;
> > +	u32 wq_size;
> > +	u32 context_flags;		/* CONTEXT_REGISTRATION_* */
> > +	/* Time for one workload to execute. (in micro seconds) */
> > +	u32 execution_quantum;
> > +	/* Time to wait for a preemption request to complete before issuing a
> > +	 * reset. (in micro seconds). */
> > +	u32 preemption_timeout;
> > +	u32 policy_flags;		/* CONTEXT_POLICY_* */
> > +	u32 reserved1[19];
> > +} __packed;
> > +
> >   #define GUC_POWER_UNSPECIFIED	0
> >   #define GUC_POWER_D0		1
> >   #define GUC_POWER_D1		2
>