drm/i915: move intel_hws_csb_write_index() out of i915_drv.h

Underscore prefix the index macros, and place
INTEL_HWS_CSB_WRITE_INDEX() as a macro next to them, to declutter
i915_drv.h.

v2: Don't underscore the index macros (Tvrtko)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220209131143.3365230-1-jani.nikula@intel.com

drivers/gpu/drm/i915/gt/intel_engine.h

@@ -182,6 +182,8 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
 #define I915_HWS_CSB_BUF0_INDEX		0x10
 #define I915_HWS_CSB_WRITE_INDEX	0x1f
 #define ICL_HWS_CSB_WRITE_INDEX		0x2f
+#define INTEL_HWS_CSB_WRITE_INDEX(__i915) \
+	(GRAPHICS_VER(__i915) >= 11 ? ICL_HWS_CSB_WRITE_INDEX : I915_HWS_CSB_WRITE_INDEX)
 
 void intel_engine_stop(struct intel_engine_cs *engine);
 void intel_engine_cleanup(struct intel_engine_cs *engine);

drivers/gpu/drm/i915/gt/intel_execlists_submission.c

@@ -3465,7 +3465,7 @@ int intel_execlists_submission_setup(struct intel_engine_cs *engine)
 		(u64 *)&engine->status_page.addr[I915_HWS_CSB_BUF0_INDEX];
 
 	execlists->csb_write =
-		&engine->status_page.addr[intel_hws_csb_write_index(i915)];
+		&engine->status_page.addr[INTEL_HWS_CSB_WRITE_INDEX(i915)];
 
 	if (GRAPHICS_VER(i915) < 11)
 		execlists->csb_size = GEN8_CSB_ENTRIES;

drivers/gpu/drm/i915/gvt/execlist.c

@@ -163,7 +163,7 @@ static void emulate_csb_update(struct intel_vgpu_execlist *execlist,
 					       hwsp_gpa + I915_HWS_CSB_BUF0_INDEX * 4 + write_pointer * 8,
 					       status, 8);
 		intel_gvt_hypervisor_write_gpa(vgpu,
-					       hwsp_gpa + intel_hws_csb_write_index(execlist->engine->i915) * 4,
+					       hwsp_gpa + INTEL_HWS_CSB_WRITE_INDEX(execlist->engine->i915) * 4,
 					       &write_pointer, 4);
 	}
 

drivers/gpu/drm/i915/i915_drv.h

@@ -1696,14 +1696,6 @@ mkwrite_device_info(struct drm_i915_private *dev_priv)
 	return (struct intel_device_info *)INTEL_INFO(dev_priv);
 }
 
-static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
-{
-	if (GRAPHICS_VER(i915) >= 11)
-		return ICL_HWS_CSB_WRITE_INDEX;
-	else
-		return I915_HWS_CSB_WRITE_INDEX;
-}
-
 static inline enum i915_map_type
 i915_coherent_map_type(struct drm_i915_private *i915,
 		       struct drm_i915_gem_object *obj, bool always_coherent)