Re: [Intel-gfx] [PATCH 6/8] drm/i915/guc: Rename desc_idx to ctx_id

["Ceraolo Spurio, Daniele" <daniele.ceraolospurio@intel.com>]

On 2/17/2022 3:52 PM, John.C.Harrison@Intel.com wrote:
> From: John Harrison <John.C.Harrison@Intel.com>
>
> The LRC descriptor pool is going away. So, stop naming context ids as
> descriptor pool indecies.
>
> While at it, add a bunch of missing line feeds to some error messages.
>
> Signed-off-by: John Harrison <John.C.Harrison@Intel.com>

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

Daniele

> ---
>   .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 56 +++++++++----------
>   1 file changed, 28 insertions(+), 28 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> index aa74ec74194a..b70b1ff46418 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> @@ -2245,7 +2245,7 @@ static void prepare_context_registration_info(struct intel_context *ce)
>   {
>   	struct intel_engine_cs *engine = ce->engine;
>   	struct intel_guc *guc = &engine->gt->uc.guc;
> -	u32 desc_idx = ce->guc_id.id;
> +	u32 ctx_id = ce->guc_id.id;
>   	struct guc_lrc_desc *desc;
>   	struct intel_context *child;
>   
> @@ -2258,10 +2258,10 @@ static void prepare_context_registration_info(struct intel_context *ce)
>   	GEM_BUG_ON(i915_gem_object_is_lmem(guc->ct.vma->obj) !=
>   		   i915_gem_object_is_lmem(ce->ring->vma->obj));
>   
> -	clr_ctx_id_mapping(guc, desc_idx);
> -	set_ctx_id_mapping(guc, desc_idx, ce);
> +	clr_ctx_id_mapping(guc, ctx_id);
> +	set_ctx_id_mapping(guc, ctx_id, ce);
>   
> -	desc = __get_lrc_desc(guc, desc_idx);
> +	desc = __get_lrc_desc(guc, ctx_id);
>   	desc->engine_class = engine_class_to_guc_class(engine->class);
>   	desc->engine_submit_mask = engine->logical_mask;
>   	desc->hw_context_desc = ce->lrc.lrca;
> @@ -2313,17 +2313,17 @@ static int try_context_registration(struct intel_context *ce, bool loop)
>   	struct intel_runtime_pm *runtime_pm = engine->uncore->rpm;
>   	struct intel_guc *guc = &engine->gt->uc.guc;
>   	intel_wakeref_t wakeref;
> -	u32 desc_idx = ce->guc_id.id;
> +	u32 ctx_id = ce->guc_id.id;
>   	bool context_registered;
>   	int ret = 0;
>   
>   	GEM_BUG_ON(!sched_state_is_init(ce));
>   
> -	context_registered = ctx_id_mapped(guc, desc_idx);
> +	context_registered = ctx_id_mapped(guc, ctx_id);
>   
>   	if (context_registered)
> -		clr_ctx_id_mapping(guc, desc_idx);
> -	set_ctx_id_mapping(guc, desc_idx, ce);
> +		clr_ctx_id_mapping(guc, ctx_id);
> +	set_ctx_id_mapping(guc, ctx_id, ce);
>   
>   	/*
>   	 * The context_lookup xarray is used to determine if the hardware
> @@ -2349,7 +2349,7 @@ static int try_context_registration(struct intel_context *ce, bool loop)
>   		}
>   		spin_unlock_irqrestore(&ce->guc_state.lock, flags);
>   		if (unlikely(disabled)) {
> -			clr_ctx_id_mapping(guc, desc_idx);
> +			clr_ctx_id_mapping(guc, ctx_id);
>   			return 0;	/* Will get registered later */
>   		}
>   
> @@ -2365,9 +2365,9 @@ static int try_context_registration(struct intel_context *ce, bool loop)
>   		with_intel_runtime_pm(runtime_pm, wakeref)
>   			ret = register_context(ce, loop);
>   		if (unlikely(ret == -EBUSY)) {
> -			clr_ctx_id_mapping(guc, desc_idx);
> +			clr_ctx_id_mapping(guc, ctx_id);
>   		} else if (unlikely(ret == -ENODEV)) {
> -			clr_ctx_id_mapping(guc, desc_idx);
> +			clr_ctx_id_mapping(guc, ctx_id);
>   			ret = 0;	/* Will get registered later */
>   		}
>   	}
> @@ -3864,26 +3864,26 @@ void intel_guc_submission_init_early(struct intel_guc *guc)
>   }
>   
>   static inline struct intel_context *
> -g2h_context_lookup(struct intel_guc *guc, u32 desc_idx)
> +g2h_context_lookup(struct intel_guc *guc, u32 ctx_id)
>   {
>   	struct intel_context *ce;
>   
> -	if (unlikely(desc_idx >= GUC_MAX_CONTEXT_ID)) {
> +	if (unlikely(ctx_id >= GUC_MAX_CONTEXT_ID)) {
>   		drm_err(&guc_to_gt(guc)->i915->drm,
> -			"Invalid desc_idx %u", desc_idx);
> +			"Invalid ctx_id %u\n", ctx_id);
>   		return NULL;
>   	}
>   
> -	ce = __get_context(guc, desc_idx);
> +	ce = __get_context(guc, ctx_id);
>   	if (unlikely(!ce)) {
>   		drm_err(&guc_to_gt(guc)->i915->drm,
> -			"Context is NULL, desc_idx %u", desc_idx);
> +			"Context is NULL, ctx_id %u\n", ctx_id);
>   		return NULL;
>   	}
>   
>   	if (unlikely(intel_context_is_child(ce))) {
>   		drm_err(&guc_to_gt(guc)->i915->drm,
> -			"Context is child, desc_idx %u", desc_idx);
> +			"Context is child, ctx_id %u\n", ctx_id);
>   		return NULL;
>   	}
>   
> @@ -3895,14 +3895,14 @@ int intel_guc_deregister_done_process_msg(struct intel_guc *guc,
>   					  u32 len)
>   {
>   	struct intel_context *ce;
> -	u32 desc_idx = msg[0];
> +	u32 ctx_id = msg[0];
>   
>   	if (unlikely(len < 1)) {
> -		drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len);
> +		drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u\n", len);
>   		return -EPROTO;
>   	}
>   
> -	ce = g2h_context_lookup(guc, desc_idx);
> +	ce = g2h_context_lookup(guc, ctx_id);
>   	if (unlikely(!ce))
>   		return -EPROTO;
>   
> @@ -3946,14 +3946,14 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc,
>   {
>   	struct intel_context *ce;
>   	unsigned long flags;
> -	u32 desc_idx = msg[0];
> +	u32 ctx_id = msg[0];
>   
>   	if (unlikely(len < 2)) {
> -		drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len);
> +		drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u\n", len);
>   		return -EPROTO;
>   	}
>   
> -	ce = g2h_context_lookup(guc, desc_idx);
> +	ce = g2h_context_lookup(guc, ctx_id);
>   	if (unlikely(!ce))
>   		return -EPROTO;
>   
> @@ -3961,8 +3961,8 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc,
>   		     (!context_pending_enable(ce) &&
>   		     !context_pending_disable(ce)))) {
>   		drm_err(&guc_to_gt(guc)->i915->drm,
> -			"Bad context sched_state 0x%x, desc_idx %u",
> -			ce->guc_state.sched_state, desc_idx);
> +			"Bad context sched_state 0x%x, ctx_id %u\n",
> +			ce->guc_state.sched_state, ctx_id);
>   		return -EPROTO;
>   	}
>   
> @@ -4061,14 +4061,14 @@ int intel_guc_context_reset_process_msg(struct intel_guc *guc,
>   {
>   	struct intel_context *ce;
>   	unsigned long flags;
> -	int desc_idx;
> +	int ctx_id;
>   
>   	if (unlikely(len != 1)) {
>   		drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len);
>   		return -EPROTO;
>   	}
>   
> -	desc_idx = msg[0];
> +	ctx_id = msg[0];
>   
>   	/*
>   	 * The context lookup uses the xarray but lookups only require an RCU lock
> @@ -4077,7 +4077,7 @@ int intel_guc_context_reset_process_msg(struct intel_guc *guc,
>   	 * asynchronously until the reset is done.
>   	 */
>   	xa_lock_irqsave(&guc->context_lookup, flags);
> -	ce = g2h_context_lookup(guc, desc_idx);
> +	ce = g2h_context_lookup(guc, ctx_id);
>   	if (ce)
>   		intel_context_get(ce);
>   	xa_unlock_irqrestore(&guc->context_lookup, flags);