[RFC PATCH 28/97] drm/i915/guc: Kill guc_clients.ct_pool

[Matthew Brost]

On Thu, May 06, 2021 at 12:13:42PM -0700, Matthew Brost wrote:
> From: Michal Wajdeczko <michal.wajdeczko at intel.com>
> 
> CTB pool is now maintained internally by the GuC as part of its
> "private data". No need to allocate separate buffer and pass it
> to GuC as yet another ADS.
> 
> GuC: 57.0.0
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
> Signed-off-by: Matthew Brost <matthew.brost at intel.com>
> Cc: Janusz Krzysztofik <janusz.krzysztofik at linux.intel.com>
> Cc: Matthew Brost <matthew.brost at intel.com>

Reviewed-by: Matthew Brost <matthew.brost at intel.com>

> ---
>  drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c  | 12 ------------
>  drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 12 +-----------
>  2 files changed, 1 insertion(+), 23 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> index 648e1767b17a..775f00d706fa 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c
> @@ -25,8 +25,6 @@
>   *      +---------------------------------------+
>   *      | guc_clients_info                      |
>   *      +---------------------------------------+
> - *      | guc_ct_pool_entry[size]               |
> - *      +---------------------------------------+
>   *      | padding                               |
>   *      +---------------------------------------+ <== 4K aligned
>   *      | private data                          |
> @@ -39,7 +37,6 @@ struct __guc_ads_blob {
>  	struct guc_policies policies;
>  	struct guc_gt_system_info system_info;
>  	struct guc_clients_info clients_info;
> -	struct guc_ct_pool_entry ct_pool[GUC_CT_POOL_SIZE];
>  } __packed;
>  
>  static u32 guc_ads_private_data_size(struct intel_guc *guc)
> @@ -67,11 +64,6 @@ static void guc_policies_init(struct guc_policies *policies)
>  	policies->is_valid = 1;
>  }
>  
> -static void guc_ct_pool_entries_init(struct guc_ct_pool_entry *pool, u32 num)
> -{
> -	memset(pool, 0, num * sizeof(*pool));
> -}
> -
>  static void guc_mapping_table_init(struct intel_gt *gt,
>  				   struct guc_gt_system_info *system_info)
>  {
> @@ -157,11 +149,7 @@ static void __guc_ads_init(struct intel_guc *guc)
>  	base = intel_guc_ggtt_offset(guc, guc->ads_vma);
>  
>  	/* Clients info  */
> -	guc_ct_pool_entries_init(blob->ct_pool, ARRAY_SIZE(blob->ct_pool));
> -
>  	blob->clients_info.clients_num = 1;
> -	blob->clients_info.ct_pool_addr = base + ptr_offset(blob, ct_pool);
> -	blob->clients_info.ct_pool_count = ARRAY_SIZE(blob->ct_pool);
>  
>  	/* ADS */
>  	blob->ads.scheduler_policies = base + ptr_offset(blob, policies);
> 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 95db4a7d3f4d..301b173a26bc 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> @@ -269,19 +269,9 @@ struct guc_gt_system_info {
>  } __packed;
>  
>  /* Clients info */
> -struct guc_ct_pool_entry {
> -	struct guc_ct_buffer_desc desc;
> -	u32 reserved[7];
> -} __packed;
> -
> -#define GUC_CT_POOL_SIZE	2
> -
>  struct guc_clients_info {
>  	u32 clients_num;
> -	u32 reserved0[13];
> -	u32 ct_pool_addr;
> -	u32 ct_pool_count;
> -	u32 reserved[4];
> +	u32 reserved[19];
>  } __packed;
>  
>  /* GuC Additional Data Struct */
> -- 
> 2.28.0
>