drm/i915/guc: Remove GUC_CTL_DEVICE_INFO parameter

It looks that GuC does not actively use GUC_CTL_DEVICE_INFO parameter
where we are passing GT type and Core family values.
Let's stop/remove setup of this parameter and remove related
definitions.

v2: (this time without squashed HAX)
  - New title and description
  - Remove also GUC_CORE_FAMILY_* definitions (Michel)
v3:
  - The removed define GUC_CTL_DEVICE_INFO has been restored (Michel)
  - Updated description (Sagar)
v4: rebase

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: John A Spotswood <john.a.spotswood@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Acked-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180413085245.57206-1-piotr.piorkowski@intel.com

diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index a00a59a..116f4cc 100644 (file)
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -203,26 +203,6 @@ void intel_guc_fini(struct intel_guc *guc)
        guc_shared_data_destroy(guc);
 }
 
-static u32 get_gt_type(struct drm_i915_private *dev_priv)
-{
-       /* XXX: GT type based on PCI device ID? field seems unused by fw */
-       return 0;
-}
-
-static u32 get_core_family(struct drm_i915_private *dev_priv)
-{
-       u32 gen = INTEL_GEN(dev_priv);
-
-       switch (gen) {
-       case 9:
-               return GUC_CORE_FAMILY_GEN9;
-
-       default:
-               MISSING_CASE(gen);
-               return GUC_CORE_FAMILY_UNKNOWN;
-       }
-}
-
 static u32 get_log_control_flags(void)
 {
        u32 level = i915_modparams.guc_log_level;
@@ -255,10 +235,6 @@ void intel_guc_init_params(struct intel_guc *guc)
 
        memset(params, 0, sizeof(params));
 
-       params[GUC_CTL_DEVICE_INFO] |=
-               (get_gt_type(dev_priv) << GUC_CTL_GT_TYPE_SHIFT) |
-               (get_core_family(dev_priv) << GUC_CTL_CORE_FAMILY_SHIFT);
-
        /*
         * GuC ARAT increment is 10 ns. GuC default scheduler quantum is one
         * second. This ARAR is calculated by:

diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h
index d73673f..0867ba7 100644 (file)
--- a/drivers/gpu/drm/i915/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/intel_guc_fwif.h
@@ -23,9 +23,6 @@
 #ifndef _INTEL_GUC_FWIF_H
 #define _INTEL_GUC_FWIF_H
 
-#define GUC_CORE_FAMILY_GEN9           12
-#define GUC_CORE_FAMILY_UNKNOWN                0x7fffffff
-
 #define GUC_CLIENT_PRIORITY_KMD_HIGH   0
 #define GUC_CLIENT_PRIORITY_HIGH       1
 #define GUC_CLIENT_PRIORITY_KMD_NORMAL 2
@@ -82,8 +79,6 @@
 #define GUC_CTL_ARAT_LOW               2
 
 #define GUC_CTL_DEVICE_INFO            3
-#define   GUC_CTL_GT_TYPE_SHIFT                0
-#define   GUC_CTL_CORE_FAMILY_SHIFT    7
 
 #define GUC_CTL_LOG_PARAMS             4
 #define   GUC_LOG_VALID                        (1 << 0)